Replace ffmpeg version from 2.1.1 to 3.2.4

trunk/3rdparty/patches/6.ffmpeg.speex.patch

@@ -0,0 +1,13 @@
+--- configure	2017-02-10 21:25:25.000000000 +0800
++++ ../ffmpeg-3.2.4-patch/configure	2017-02-13 22:39:22.676288196 +0800
+@@ -5739,7 +5739,9 @@
+ enabled libsnappy         && require snappy snappy-c.h snappy_compress -lsnappy
+ enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr && LIBSOXR="-lsoxr"
+ enabled libssh            && require_pkg_config libssh libssh/sftp.h sftp_init
+-enabled libspeex          && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex
++enabled libspeex          && { use_pkg_config speex speex/speex.h speex_decoder_init -lspeex ||
++                                { require libspeex speex/speex.h speex_decoder_init -lspeex &&
++                                 warn "using libspeex without pkg-config"; } }
+ enabled libtesseract      && require_pkg_config tesseract tesseract/capi.h TessBaseAPICreate
+ enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
+ enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&

trunk/3rdparty/readme.txt

@@ -13,7 +13,7 @@ openssl-1.0.1f.zip
 CherryPy-3.2.4.zip
     sample api server for srs.
 
-ffmpeg-2.1.1.tar.gz
+ffmpeg-3.2.4.tar.gz
 yasm-1.2.0.tar.gz
 lame-3.99.5.tar.gz
 speex-1.2rc1.zip
@@ -45,7 +45,7 @@ links:
         http://sourceforge.net/projects/state-threads
     ffmpeg: 
         http://ffmpeg.org/ 
-        http://ffmpeg.org/releases/ffmpeg-2.1.1.tar.gz
+        http://ffmpeg.org/releases/ffmpeg-3.2.4.tar.gz
     x264: 
         http://www.videolan.org/ 
         ftp://ftp.videolan.org/pub/videolan/x264/snapshots/x264-snapshot-20131129-2245-stable.tar.bz2