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ffmpeg ubuntu build files
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trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/v4l2_fmt.c
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trunk/3rdparty/ffmpeg-4.2-fit/libavcodec/v4l2_fmt.c
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/*
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* V4L2 format helper functions
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*
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* Copyright (C) 2017 Alexis Ballier <aballier@gentoo.org>
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* Copyright (C) 2017 Jorge Ramirez <jorge.ramirez-ortiz@linaro.org>
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <linux/videodev2.h>
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#include <search.h>
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#include "v4l2_fmt.h"
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#define V4L2_FMT(x) V4L2_PIX_FMT_##x
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#define AV_CODEC(x) AV_CODEC_ID_##x
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#define AV_FMT(x) AV_PIX_FMT_##x
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static const struct fmt_conversion {
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enum AVPixelFormat avfmt;
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enum AVCodecID avcodec;
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uint32_t v4l2_fmt;
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} fmt_map[] = {
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{ AV_FMT(RGB555LE), AV_CODEC(RAWVIDEO), V4L2_FMT(RGB555) },
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{ AV_FMT(RGB555BE), AV_CODEC(RAWVIDEO), V4L2_FMT(RGB555X) },
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{ AV_FMT(RGB565LE), AV_CODEC(RAWVIDEO), V4L2_FMT(RGB565) },
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{ AV_FMT(RGB565BE), AV_CODEC(RAWVIDEO), V4L2_FMT(RGB565X) },
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{ AV_FMT(BGR24), AV_CODEC(RAWVIDEO), V4L2_FMT(BGR24) },
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{ AV_FMT(RGB24), AV_CODEC(RAWVIDEO), V4L2_FMT(RGB24) },
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{ AV_FMT(BGR0), AV_CODEC(RAWVIDEO), V4L2_FMT(BGR32) },
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{ AV_FMT(0RGB), AV_CODEC(RAWVIDEO), V4L2_FMT(RGB32) },
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{ AV_FMT(GRAY8), AV_CODEC(RAWVIDEO), V4L2_FMT(GREY) },
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{ AV_FMT(YUV420P), AV_CODEC(RAWVIDEO), V4L2_FMT(YUV420) },
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{ AV_FMT(YUYV422), AV_CODEC(RAWVIDEO), V4L2_FMT(YUYV) },
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{ AV_FMT(UYVY422), AV_CODEC(RAWVIDEO), V4L2_FMT(UYVY) },
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{ AV_FMT(YUV422P), AV_CODEC(RAWVIDEO), V4L2_FMT(YUV422P) },
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{ AV_FMT(YUV411P), AV_CODEC(RAWVIDEO), V4L2_FMT(YUV411P) },
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{ AV_FMT(YUV410P), AV_CODEC(RAWVIDEO), V4L2_FMT(YUV410) },
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{ AV_FMT(YUV410P), AV_CODEC(RAWVIDEO), V4L2_FMT(YVU410) },
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{ AV_FMT(NV12), AV_CODEC(RAWVIDEO), V4L2_FMT(NV12) },
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{ AV_FMT(NONE), AV_CODEC(MJPEG), V4L2_FMT(MJPEG) },
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{ AV_FMT(NONE), AV_CODEC(MJPEG), V4L2_FMT(JPEG) },
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#ifdef V4L2_PIX_FMT_SRGGB8
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{ AV_FMT(BAYER_BGGR8), AV_CODEC(RAWVIDEO), V4L2_FMT(SBGGR8) },
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{ AV_FMT(BAYER_GBRG8), AV_CODEC(RAWVIDEO), V4L2_FMT(SGBRG8) },
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{ AV_FMT(BAYER_GRBG8), AV_CODEC(RAWVIDEO), V4L2_FMT(SGRBG8) },
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{ AV_FMT(BAYER_RGGB8), AV_CODEC(RAWVIDEO), V4L2_FMT(SRGGB8) },
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#endif
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#ifdef V4L2_PIX_FMT_Y16
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{ AV_FMT(GRAY16LE), AV_CODEC(RAWVIDEO), V4L2_FMT(Y16) },
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#endif
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#ifdef V4L2_PIX_FMT_NV12M
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{ AV_FMT(NV12), AV_CODEC(RAWVIDEO), V4L2_FMT(NV12M) },
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#endif
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#ifdef V4L2_PIX_FMT_NV21M
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{ AV_FMT(NV21), AV_CODEC(RAWVIDEO), V4L2_FMT(NV21M) },
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#endif
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#ifdef V4L2_PIX_FMT_YUV420M
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{ AV_FMT(YUV420P), AV_CODEC(RAWVIDEO), V4L2_FMT(YUV420M) },
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#endif
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#ifdef V4L2_PIX_FMT_NV16M
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{ AV_FMT(NV16), AV_CODEC(RAWVIDEO), V4L2_FMT(NV16M) },
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#endif
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#ifdef V4L2_PIX_FMT_H263
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{ AV_FMT(NONE), AV_CODEC(H263), V4L2_FMT(H263) },
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#endif
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#ifdef V4L2_PIX_FMT_H264
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{ AV_FMT(NONE), AV_CODEC(H264), V4L2_FMT(H264) },
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#endif
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#ifdef V4L2_PIX_FMT_MPEG4
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{ AV_FMT(NONE), AV_CODEC(MPEG4), V4L2_FMT(MPEG4) },
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#endif
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#ifdef V4L2_PIX_FMT_CPIA1
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{ AV_FMT(NONE), AV_CODEC(CPIA), V4L2_FMT(CPIA1) },
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#endif
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#ifdef V4L2_PIX_FMT_DV
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{ AV_FMT(NONE), AV_CODEC(DVVIDEO), V4L2_FMT(DV) },
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#endif
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#ifdef V4L2_PIX_FMT_MPEG1
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{ AV_FMT(NONE), AV_CODEC(MPEG1VIDEO), V4L2_FMT(MPEG1) },
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#endif
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#ifdef V4L2_PIX_FMT_MPEG2
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{ AV_FMT(NONE), AV_CODEC(MPEG2VIDEO), V4L2_FMT(MPEG2) },
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#endif
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#ifdef V4L2_PIX_FMT_VP8
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{ AV_FMT(NONE), AV_CODEC(VP8), V4L2_FMT(VP8) },
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#endif
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#ifdef V4L2_PIX_FMT_VP9
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{ AV_FMT(NONE), AV_CODEC(VP9), V4L2_FMT(VP9) },
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#endif
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#ifdef V4L2_PIX_FMT_HEVC
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{ AV_FMT(NONE), AV_CODEC(HEVC), V4L2_FMT(HEVC) },
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#endif
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#ifdef V4L2_PIX_FMT_VC1_ANNEX_G
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{ AV_FMT(NONE), AV_CODEC(VC1), V4L2_FMT(VC1_ANNEX_G) },
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#endif
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};
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uint32_t ff_v4l2_format_avcodec_to_v4l2(enum AVCodecID avcodec)
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{
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int i;
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for (i = 0; i < FF_ARRAY_ELEMS(fmt_map); i++) {
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if (fmt_map[i].avcodec == avcodec)
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return fmt_map[i].v4l2_fmt;
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}
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return 0;
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}
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uint32_t ff_v4l2_format_avfmt_to_v4l2(enum AVPixelFormat avfmt)
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{
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int i;
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for (i = 0; i < FF_ARRAY_ELEMS(fmt_map); i++) {
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if (fmt_map[i].avfmt == avfmt)
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return fmt_map[i].v4l2_fmt;
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}
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return 0;
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}
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enum AVPixelFormat ff_v4l2_format_v4l2_to_avfmt(uint32_t v4l2_fmt, enum AVCodecID avcodec)
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{
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int i;
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for (i = 0; i < FF_ARRAY_ELEMS(fmt_map); i++) {
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if (fmt_map[i].avcodec == avcodec &&
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fmt_map[i].v4l2_fmt == v4l2_fmt)
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return fmt_map[i].avfmt;
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}
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return AV_PIX_FMT_NONE;
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}
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