* commit '36ef5369ee9b336febc2c270f8718cec4476cb85': Replace all CODEC_ID_* with AV_CODEC_ID_* lavc: add AV prefix to codec ids. Conflicts: doc/APIchanges doc/examples/decoding_encoding.c doc/examples/muxing.c ffmpeg.c ffprobe.c ffserver.c libavcodec/8svx.c libavcodec/avcodec.h libavcodec/dnxhd_parser.c libavcodec/dvdsubdec.c libavcodec/error_resilience.c libavcodec/h263dec.c libavcodec/libvorbisenc.c libavcodec/mjpeg_parser.c libavcodec/mjpegenc.c libavcodec/mpeg12.c libavcodec/mpeg4videodec.c libavcodec/mpegvideo.c libavcodec/mpegvideo_enc.c libavcodec/pcm.c libavcodec/r210dec.c libavcodec/utils.c libavcodec/v210dec.c libavcodec/version.h libavdevice/alsa-audio-dec.c libavdevice/bktr.c libavdevice/v4l2.c libavformat/asfdec.c libavformat/asfenc.c libavformat/avformat.h libavformat/avidec.c libavformat/caf.c libavformat/electronicarts.c libavformat/flacdec.c libavformat/flvdec.c libavformat/flvenc.c libavformat/framecrcenc.c libavformat/img2.c libavformat/img2dec.c libavformat/img2enc.c libavformat/ipmovie.c libavformat/isom.c libavformat/matroska.c libavformat/matroskadec.c libavformat/matroskaenc.c libavformat/mov.c libavformat/movenc.c libavformat/mp3dec.c libavformat/mpeg.c libavformat/mpegts.c libavformat/mxf.c libavformat/mxfdec.c libavformat/mxfenc.c libavformat/nsvdec.c libavformat/nut.c libavformat/oggenc.c libavformat/pmpdec.c libavformat/rawdec.c libavformat/rawenc.c libavformat/riff.c libavformat/sdp.c libavformat/utils.c libavformat/vocenc.c libavformat/wtv.c libavformat/xmv.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
		
			
				
	
	
		
			563 lines
		
	
	
		
			29 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			563 lines
		
	
	
		
			29 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /*
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|  * ISO Media common code
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|  * Copyright (c) 2001 Fabrice Bellard
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|  * Copyright (c) 2002 Francois Revol <revol@free.fr>
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|  * Copyright (c) 2006 Baptiste Coudurier <baptiste.coudurier@free.fr>
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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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| 
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| //#define DEBUG
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| 
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| #include "avformat.h"
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| #include "internal.h"
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| #include "isom.h"
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| #include "riff.h"
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| #include "libavcodec/mpeg4audio.h"
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| #include "libavcodec/mpegaudiodata.h"
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| 
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| /* http://www.mp4ra.org */
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| /* ordered by muxing preference */
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| const AVCodecTag ff_mp4_obj_type[] = {
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|     { AV_CODEC_ID_MOV_TEXT    , 0x08 },
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|     { AV_CODEC_ID_MPEG4       , 0x20 },
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|     { AV_CODEC_ID_H264        , 0x21 },
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|     { AV_CODEC_ID_AAC         , 0x40 },
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|     { AV_CODEC_ID_MP4ALS      , 0x40 }, /* 14496-3 ALS */
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|     { AV_CODEC_ID_MPEG2VIDEO  , 0x61 }, /* MPEG2 Main */
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|     { AV_CODEC_ID_MPEG2VIDEO  , 0x60 }, /* MPEG2 Simple */
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|     { AV_CODEC_ID_MPEG2VIDEO  , 0x62 }, /* MPEG2 SNR */
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|     { AV_CODEC_ID_MPEG2VIDEO  , 0x63 }, /* MPEG2 Spatial */
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|     { AV_CODEC_ID_MPEG2VIDEO  , 0x64 }, /* MPEG2 High */
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|     { AV_CODEC_ID_MPEG2VIDEO  , 0x65 }, /* MPEG2 422 */
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|     { AV_CODEC_ID_AAC         , 0x66 }, /* MPEG2 AAC Main */
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|     { AV_CODEC_ID_AAC         , 0x67 }, /* MPEG2 AAC Low */
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|     { AV_CODEC_ID_AAC         , 0x68 }, /* MPEG2 AAC SSR */
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|     { AV_CODEC_ID_MP3         , 0x69 }, /* 13818-3 */
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|     { AV_CODEC_ID_MP2         , 0x69 }, /* 11172-3 */
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|     { AV_CODEC_ID_MPEG1VIDEO  , 0x6A }, /* 11172-2 */
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|     { AV_CODEC_ID_MP3         , 0x6B }, /* 11172-3 */
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|     { AV_CODEC_ID_MJPEG       , 0x6C }, /* 10918-1 */
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|     { AV_CODEC_ID_PNG         , 0x6D },
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|     { AV_CODEC_ID_JPEG2000    , 0x6E }, /* 15444-1 */
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|     { AV_CODEC_ID_VC1         , 0xA3 },
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|     { AV_CODEC_ID_DIRAC       , 0xA4 },
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|     { AV_CODEC_ID_AC3         , 0xA5 },
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|     { AV_CODEC_ID_DTS         , 0xA9 }, /* mp4ra.org */
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|     { AV_CODEC_ID_VORBIS      , 0xDD }, /* non standard, gpac uses it */
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|     { AV_CODEC_ID_DVD_SUBTITLE, 0xE0 }, /* non standard, see unsupported-embedded-subs-2.mp4 */
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|     { AV_CODEC_ID_QCELP       , 0xE1 },
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|     { AV_CODEC_ID_MPEG4SYSTEMS, 0x01 },
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|     { AV_CODEC_ID_MPEG4SYSTEMS, 0x02 },
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|     { AV_CODEC_ID_NONE        ,    0 },
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| };
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| 
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| const AVCodecTag ff_codec_movvideo_tags[] = {
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| /*  { AV_CODEC_ID_, MKTAG('I', 'V', '5', '0') }, *//* Indeo 5.0 */
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| 
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|     { AV_CODEC_ID_RAWVIDEO, MKTAG('r', 'a', 'w', ' ') }, /* Uncompressed RGB */
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|     { AV_CODEC_ID_RAWVIDEO, MKTAG('y', 'u', 'v', '2') }, /* Uncompressed YUV422 */
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|     { AV_CODEC_ID_RAWVIDEO, MKTAG('2', 'v', 'u', 'y') }, /* UNCOMPRESSED 8BIT 4:2:2 */
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|     { AV_CODEC_ID_RAWVIDEO, MKTAG('y', 'u', 'v', 's') }, /* same as 2vuy but byte swapped */
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| 
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|     { AV_CODEC_ID_RAWVIDEO, MKTAG('L', '5', '5', '5') },
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|     { AV_CODEC_ID_RAWVIDEO, MKTAG('L', '5', '6', '5') },
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|     { AV_CODEC_ID_RAWVIDEO, MKTAG('B', '5', '6', '5') },
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|     { AV_CODEC_ID_RAWVIDEO, MKTAG('2', '4', 'B', 'G') },
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|     { AV_CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 'A') },
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|     { AV_CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 'A') },
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|     { AV_CODEC_ID_RAWVIDEO, MKTAG('A', 'B', 'G', 'R') },
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|     { AV_CODEC_ID_RAWVIDEO, MKTAG('b', '1', '6', 'g') },
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|     { AV_CODEC_ID_RAWVIDEO, MKTAG('b', '4', '8', 'r') },
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|     { AV_CODEC_ID_RAWVIDEO, MKTAG('b', 'x', 'b', 'g') },
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|     { AV_CODEC_ID_RAWVIDEO, MKTAG('b', 'x', 'r', 'g') },
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|     { AV_CODEC_ID_RAWVIDEO, MKTAG('b', 'x', 'y', 'v') },
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|     { AV_CODEC_ID_RAWVIDEO, MKTAG('N', 'O', '1', '6') },
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|     { AV_CODEC_ID_RAWVIDEO, MKTAG('D', 'V', 'O', 'O') }, /* Digital Voodoo SD 8 Bit */
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|     { AV_CODEC_ID_RAWVIDEO, MKTAG('R', '4', '2', '0') }, /* Radius DV YUV PAL */
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|     { AV_CODEC_ID_RAWVIDEO, MKTAG('R', '4', '1', '1') }, /* Radius DV YUV NTSC */
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| 
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|     { AV_CODEC_ID_R10K,   MKTAG('R', '1', '0', 'k') }, /* UNCOMPRESSED 10BIT RGB */
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|     { AV_CODEC_ID_R10K,   MKTAG('R', '1', '0', 'g') }, /* UNCOMPRESSED 10BIT RGB */
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|     { AV_CODEC_ID_R210,   MKTAG('r', '2', '1', '0') }, /* UNCOMPRESSED 10BIT RGB */
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|     { AV_CODEC_ID_AVUI,   MKTAG('A', 'V', 'U', 'I') }, /* AVID Uncompressed deinterleaved UYVY422 */
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|     { AV_CODEC_ID_AVRP,   MKTAG('A', 'V', 'r', 'p') }, /* Avid 1:1 10-bit RGB Packer */
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|     { AV_CODEC_ID_AVRP,   MKTAG('S', 'U', 'D', 'S') }, /* Avid DS Uncompressed */
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|     { AV_CODEC_ID_V210,   MKTAG('v', '2', '1', '0') }, /* UNCOMPRESSED 10BIT 4:2:2 */
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|     { AV_CODEC_ID_V210,   MKTAG('b', 'x', 'y', '2') }, /* BOXX 10BIT 4:2:2 */
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|     { AV_CODEC_ID_V308,   MKTAG('v', '3', '0', '8') }, /* UNCOMPRESSED  8BIT 4:4:4 */
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|     { AV_CODEC_ID_V408,   MKTAG('v', '4', '0', '8') }, /* UNCOMPRESSED  8BIT 4:4:4:4 */
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|     { AV_CODEC_ID_V410,   MKTAG('v', '4', '1', '0') }, /* UNCOMPRESSED 10BIT 4:4:4 */
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|     { AV_CODEC_ID_Y41P,   MKTAG('Y', '4', '1', 'P') }, /* UNCOMPRESSED 12BIT 4:1:1 */
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|     { AV_CODEC_ID_YUV4,   MKTAG('y', 'u', 'v', '4') }, /* libquicktime packed yuv420p */
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| 
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|     { AV_CODEC_ID_MJPEG,  MKTAG('j', 'p', 'e', 'g') }, /* PhotoJPEG */
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|     { AV_CODEC_ID_MJPEG,  MKTAG('m', 'j', 'p', 'a') }, /* Motion-JPEG (format A) */
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|     { AV_CODEC_ID_MJPEG,  MKTAG('A', 'V', 'D', 'J') }, /* MJPEG with alpha-channel (AVID JFIF meridien compressed) */
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| /*  { AV_CODEC_ID_MJPEG,  MKTAG('A', 'V', 'R', 'n') }, *//* MJPEG with alpha-channel (AVID ABVB/Truevision NuVista) */
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|     { AV_CODEC_ID_MJPEG,  MKTAG('d', 'm', 'b', '1') }, /* Motion JPEG OpenDML */
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|     { AV_CODEC_ID_MJPEGB, MKTAG('m', 'j', 'p', 'b') }, /* Motion-JPEG (format B) */
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| 
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|     { AV_CODEC_ID_SVQ1, MKTAG('S', 'V', 'Q', '1') }, /* Sorenson Video v1 */
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|     { AV_CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', '1') }, /* Sorenson Video v1 */
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|     { AV_CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', 'i') }, /* Sorenson Video v1 (from QT specs)*/
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|     { AV_CODEC_ID_SVQ3, MKTAG('S', 'V', 'Q', '3') }, /* Sorenson Video v3 */
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| 
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|     { AV_CODEC_ID_MPEG4, MKTAG('m', 'p', '4', 'v') },
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|     { AV_CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', 'X') }, /* OpenDiVX *//* sample files at http://heroinewarrior.com/xmovie.php3 use this tag */
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|     { AV_CODEC_ID_MPEG4, MKTAG('X', 'V', 'I', 'D') },
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|     { AV_CODEC_ID_MPEG4, MKTAG('3', 'I', 'V', '2') }, /* experimental: 3IVX files before ivx D4 4.5.1 */
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| 
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|     { AV_CODEC_ID_H263, MKTAG('h', '2', '6', '3') }, /* H263 */
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|     { AV_CODEC_ID_H263, MKTAG('s', '2', '6', '3') }, /* H263 ?? works */
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| 
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|     { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', 'p') }, /* DV PAL */
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|     { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', ' ') }, /* DV NTSC */
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|     { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'p', 'p') }, /* DVCPRO PAL produced by FCP */
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|     { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', '5', 'p') }, /* DVCPRO50 PAL produced by FCP */
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|     { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', '5', 'n') }, /* DVCPRO50 NTSC produced by FCP */
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|     { AV_CODEC_ID_DVVIDEO, MKTAG('A', 'V', 'd', 'v') }, /* AVID DV */
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|     { AV_CODEC_ID_DVVIDEO, MKTAG('A', 'V', 'd', '1') }, /* AVID DV100 */
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|     { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', 'q') }, /* DVCPRO HD 720p50 */
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|     { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', 'p') }, /* DVCPRO HD 720p60 */
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|     { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '1') },
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|     { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '2') },
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|     { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '4') },
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|     { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '5') }, /* DVCPRO HD 50i produced by FCP */
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|     { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '6') }, /* DVCPRO HD 60i produced by FCP */
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|     { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '3') }, /* DVCPRO HD 30p produced by FCP */
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| 
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|     { AV_CODEC_ID_VP3,     MKTAG('V', 'P', '3', '1') }, /* On2 VP3 */
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|     { AV_CODEC_ID_RPZA,    MKTAG('r', 'p', 'z', 'a') }, /* Apple Video (RPZA) */
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|     { AV_CODEC_ID_CINEPAK, MKTAG('c', 'v', 'i', 'd') }, /* Cinepak */
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|     { AV_CODEC_ID_8BPS,    MKTAG('8', 'B', 'P', 'S') }, /* Planar RGB (8BPS) */
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|     { AV_CODEC_ID_SMC,     MKTAG('s', 'm', 'c', ' ') }, /* Apple Graphics (SMC) */
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|     { AV_CODEC_ID_QTRLE,   MKTAG('r', 'l', 'e', ' ') }, /* Apple Animation (RLE) */
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|     { AV_CODEC_ID_MSRLE,   MKTAG('W', 'R', 'L', 'E') },
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|     { AV_CODEC_ID_QDRAW,   MKTAG('q', 'd', 'r', 'w') }, /* QuickDraw */
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| 
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|     { AV_CODEC_ID_RAWVIDEO, MKTAG('W', 'R', 'A', 'W') },
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| 
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|     { AV_CODEC_ID_H264, MKTAG('a', 'v', 'c', '1') }, /* AVC-1/H.264 */
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|     { AV_CODEC_ID_H264, MKTAG('a', 'i', '5', 'p') }, /* AVC-Intra  50M 720p24/30/60 */
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|     { AV_CODEC_ID_H264, MKTAG('a', 'i', '5', 'q') }, /* AVC-Intra  50M 720p25/50 */
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|     { AV_CODEC_ID_H264, MKTAG('a', 'i', '5', '2') }, /* AVC-Intra  50M 1080p25/50 */
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|     { AV_CODEC_ID_H264, MKTAG('a', 'i', '5', '3') }, /* AVC-Intra  50M 1080p24/30/60 */
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|     { AV_CODEC_ID_H264, MKTAG('a', 'i', '5', '5') }, /* AVC-Intra  50M 1080i50 */
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|     { AV_CODEC_ID_H264, MKTAG('a', 'i', '5', '6') }, /* AVC-Intra  50M 1080i60 */
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|     { AV_CODEC_ID_H264, MKTAG('a', 'i', '1', 'p') }, /* AVC-Intra 100M 720p24/30/60 */
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|     { AV_CODEC_ID_H264, MKTAG('a', 'i', '1', 'q') }, /* AVC-Intra 100M 720p25/50 */
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|     { AV_CODEC_ID_H264, MKTAG('a', 'i', '1', '2') }, /* AVC-Intra 100M 1080p25/50 */
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|     { AV_CODEC_ID_H264, MKTAG('a', 'i', '1', '3') }, /* AVC-Intra 100M 1080p24/30/60 */
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|     { AV_CODEC_ID_H264, MKTAG('a', 'i', '1', '5') }, /* AVC-Intra 100M 1080i50 */
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|     { AV_CODEC_ID_H264, MKTAG('a', 'i', '1', '6') }, /* AVC-Intra 100M 1080i60 */
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| 
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|     { AV_CODEC_ID_MPEG1VIDEO, MKTAG('m', '1', 'v', '1') }, /* Apple MPEG-1 Camcorder */
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|     { AV_CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'e', 'g') }, /* MPEG */
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|     { AV_CODEC_ID_MPEG1VIDEO, MKTAG('m', '1', 'v', ' ') },
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|     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('m', '2', 'v', '1') }, /* Apple MPEG-2 Camcorder */
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|     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '1') }, /* MPEG2 HDV 720p30 */
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|     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '2') }, /* MPEG2 HDV 1080i60 */
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|     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '3') }, /* MPEG2 HDV 1080i50 */
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|     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '4') }, /* MPEG2 HDV 720p24 */
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|     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '5') }, /* MPEG2 HDV 720p25 */
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|     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '6') }, /* MPEG2 HDV 1080p24 */
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|     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '7') }, /* MPEG2 HDV 1080p25 */
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|     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '8') }, /* MPEG2 HDV 1080p30 */
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|     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '9') }, /* MPEG2 HDV 720p60 JVC */
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|     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', 'a') }, /* MPEG2 HDV 720p50 */
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|     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '5', 'n') }, /* MPEG2 IMX NTSC 525/60 50mb/s produced by FCP */
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|     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '5', 'p') }, /* MPEG2 IMX PAL 625/50 50mb/s produced by FCP */
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|     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '4', 'n') }, /* MPEG2 IMX NTSC 525/60 40mb/s produced by FCP */
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|     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '4', 'p') }, /* MPEG2 IMX PAL 625/50 40mb/s produced by FCP */
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|     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '3', 'n') }, /* MPEG2 IMX NTSC 525/60 30mb/s produced by FCP */
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|     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '3', 'p') }, /* MPEG2 IMX PAL 625/50 30mb/s produced by FCP */
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|     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', '4') }, /* XDCAM HD422 720p24 CBR */
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|     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', '5') }, /* XDCAM HD422 720p25 CBR */
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|     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', '9') }, /* XDCAM HD422 720p60 CBR */
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|     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'a') }, /* XDCAM HD422 720p50 CBR */
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|     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'b') }, /* XDCAM HD422 1080i60 CBR */
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|     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'c') }, /* XDCAM HD422 1080i50 CBR */
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|     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'd') }, /* XDCAM HD422 1080p24 CBR */
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|     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'e') }, /* XDCAM HD422 1080p25 CBR */
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|     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'f') }, /* XDCAM HD422 1080p30 CBR */
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|     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '1') }, /* XDCAM EX 720p30 VBR */
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|     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '2') }, /* XDCAM HD 1080i60 */
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|     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '3') }, /* XDCAM HD 1080i50 VBR */
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|     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '4') }, /* XDCAM EX 720p24 VBR */
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|     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '5') }, /* XDCAM EX 720p25 VBR */
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|     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '6') }, /* XDCAM HD 1080p24 VBR */
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|     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '7') }, /* XDCAM HD 1080p25 VBR */
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|     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '8') }, /* XDCAM HD 1080p30 VBR */
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|     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '9') }, /* XDCAM EX 720p60 VBR */
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|     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'a') }, /* XDCAM EX 720p50 VBR */
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|     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'b') }, /* XDCAM EX 1080i60 VBR */
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|     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'c') }, /* XDCAM EX 1080i50 VBR */
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|     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'd') }, /* XDCAM EX 1080p24 VBR */
 | |
|     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'e') }, /* XDCAM EX 1080p25 VBR */
 | |
|     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'f') }, /* XDCAM EX 1080p30 VBR */
 | |
|     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'h', 'd') }, /* XDCAM HD 540p */
 | |
|     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'h', '2') }, /* XDCAM HD422 540p */
 | |
|     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('A', 'V', 'm', 'p') }, /* AVID IMX PAL */
 | |
| 
 | |
|     { AV_CODEC_ID_JPEG2000, MKTAG('m', 'j', 'p', '2') }, /* JPEG 2000 produced by FCP */
 | |
| 
 | |
|     { AV_CODEC_ID_TARGA, MKTAG('t', 'g', 'a', ' ') }, /* Truevision Targa */
 | |
|     { AV_CODEC_ID_TIFF,  MKTAG('t', 'i', 'f', 'f') }, /* TIFF embedded in MOV */
 | |
|     { AV_CODEC_ID_GIF,   MKTAG('g', 'i', 'f', ' ') }, /* embedded gif files as frames (usually one "click to play movie" frame) */
 | |
|     { AV_CODEC_ID_PNG,   MKTAG('p', 'n', 'g', ' ') },
 | |
|     { AV_CODEC_ID_PNG,   MKTAG('M', 'N', 'G', ' ') },
 | |
| 
 | |
|     { AV_CODEC_ID_VC1, MKTAG('v', 'c', '-', '1') }, /* SMPTE RP 2025 */
 | |
|     { AV_CODEC_ID_CAVS, MKTAG('a', 'v', 's', '2') },
 | |
| 
 | |
|     { AV_CODEC_ID_DIRAC,     MKTAG('d', 'r', 'a', 'c') },
 | |
|     { AV_CODEC_ID_DNXHD,     MKTAG('A', 'V', 'd', 'n') }, /* AVID DNxHD */
 | |
| //  { AV_CODEC_ID_FLV1,      MKTAG('H', '2', '6', '3') }, /* Flash Media Server */
 | |
|     { AV_CODEC_ID_MSMPEG4V3, MKTAG('3', 'I', 'V', 'D') }, /* 3ivx DivX Doctor */
 | |
|     { AV_CODEC_ID_RAWVIDEO,  MKTAG('A', 'V', '1', 'x') }, /* AVID 1:1x */
 | |
|     { AV_CODEC_ID_RAWVIDEO,  MKTAG('A', 'V', 'u', 'p') },
 | |
|     { AV_CODEC_ID_SGI,       MKTAG('s', 'g', 'i', ' ') }, /* SGI  */
 | |
|     { AV_CODEC_ID_DPX,       MKTAG('d', 'p', 'x', ' ') }, /* DPX */
 | |
|     { AV_CODEC_ID_EXR,       MKTAG('e', 'x', 'r', ' ') }, /* OpenEXR */
 | |
| 
 | |
|     { AV_CODEC_ID_PRORES, MKTAG('a', 'p', 'c', 'h') }, /* Apple ProRes 422 High Quality */
 | |
|     { AV_CODEC_ID_PRORES, MKTAG('a', 'p', 'c', 'n') }, /* Apple ProRes 422 Standard Definition */
 | |
|     { AV_CODEC_ID_PRORES, MKTAG('a', 'p', 'c', 's') }, /* Apple ProRes 422 LT */
 | |
|     { AV_CODEC_ID_PRORES, MKTAG('a', 'p', 'c', 'o') }, /* Apple ProRes 422 Proxy */
 | |
|     { AV_CODEC_ID_PRORES, MKTAG('a', 'p', '4', 'h') }, /* Apple ProRes 4444 */
 | |
|     { AV_CODEC_ID_FLIC,   MKTAG('f', 'l', 'i', 'c') },
 | |
| 
 | |
|     { AV_CODEC_ID_NONE, 0 },
 | |
| };
 | |
| 
 | |
| const AVCodecTag ff_codec_movaudio_tags[] = {
 | |
|     { AV_CODEC_ID_AAC,             MKTAG('m', 'p', '4', 'a') },
 | |
|     { AV_CODEC_ID_AC3,             MKTAG('a', 'c', '-', '3') }, /* ETSI TS 102 366 Annex F */
 | |
|     { AV_CODEC_ID_AC3,             MKTAG('s', 'a', 'c', '3') }, /* Nero Recode */
 | |
|     { AV_CODEC_ID_ADPCM_IMA_QT,    MKTAG('i', 'm', 'a', '4') },
 | |
|     { AV_CODEC_ID_ALAC,            MKTAG('a', 'l', 'a', 'c') },
 | |
|     { AV_CODEC_ID_AMR_NB,          MKTAG('s', 'a', 'm', 'r') }, /* AMR-NB 3gp */
 | |
|     { AV_CODEC_ID_AMR_WB,          MKTAG('s', 'a', 'w', 'b') }, /* AMR-WB 3gp */
 | |
|     { AV_CODEC_ID_DTS,             MKTAG('d', 't', 's', 'c') }, /* DTS formats prior to DTS-HD */
 | |
|     { AV_CODEC_ID_DTS,             MKTAG('d', 't', 's', 'h') }, /* DTS-HD audio formats */
 | |
|     { AV_CODEC_ID_DTS,             MKTAG('d', 't', 's', 'l') }, /* DTS-HD Lossless formats */
 | |
|     { AV_CODEC_ID_DTS,             MKTAG('D', 'T', 'S', ' ') }, /* non-standard */
 | |
|     { AV_CODEC_ID_EAC3,            MKTAG('e', 'c', '-', '3') }, /* ETSI TS 102 366 Annex F (only valid in ISOBMFF) */
 | |
|     { AV_CODEC_ID_DVAUDIO,         MKTAG('v', 'd', 'v', 'a') },
 | |
|     { AV_CODEC_ID_DVAUDIO,         MKTAG('d', 'v', 'c', 'a') },
 | |
|     { AV_CODEC_ID_GSM,             MKTAG('a', 'g', 's', 'm') },
 | |
|     { AV_CODEC_ID_ILBC,            MKTAG('i', 'l', 'b', 'c') },
 | |
|     { AV_CODEC_ID_MACE3,           MKTAG('M', 'A', 'C', '3') },
 | |
|     { AV_CODEC_ID_MACE6,           MKTAG('M', 'A', 'C', '6') },
 | |
|     { AV_CODEC_ID_MP1,             MKTAG('.', 'm', 'p', '1') },
 | |
|     { AV_CODEC_ID_MP2,             MKTAG('.', 'm', 'p', '2') },
 | |
|     { AV_CODEC_ID_MP3,             MKTAG('.', 'm', 'p', '3') },
 | |
|     { AV_CODEC_ID_MP3,             0x6D730055                },
 | |
|     { AV_CODEC_ID_NELLYMOSER,      MKTAG('n', 'm', 'o', 's') }, /* Flash Media Server */
 | |
|     { AV_CODEC_ID_PCM_ALAW,        MKTAG('a', 'l', 'a', 'w') },
 | |
|     { AV_CODEC_ID_PCM_F32BE,       MKTAG('f', 'l', '3', '2') },
 | |
|     { AV_CODEC_ID_PCM_F32LE,       MKTAG('f', 'l', '3', '2') },
 | |
|     { AV_CODEC_ID_PCM_F64BE,       MKTAG('f', 'l', '6', '4') },
 | |
|     { AV_CODEC_ID_PCM_F64LE,       MKTAG('f', 'l', '6', '4') },
 | |
|     { AV_CODEC_ID_PCM_MULAW,       MKTAG('u', 'l', 'a', 'w') },
 | |
|     { AV_CODEC_ID_PCM_S16BE,       MKTAG('t', 'w', 'o', 's') },
 | |
|     { AV_CODEC_ID_PCM_S16LE,       MKTAG('s', 'o', 'w', 't') },
 | |
|     { AV_CODEC_ID_PCM_S16LE,       MKTAG('l', 'p', 'c', 'm') },
 | |
|     { AV_CODEC_ID_PCM_S24BE,       MKTAG('i', 'n', '2', '4') },
 | |
|     { AV_CODEC_ID_PCM_S24LE,       MKTAG('i', 'n', '2', '4') },
 | |
|     { AV_CODEC_ID_PCM_S32BE,       MKTAG('i', 'n', '3', '2') },
 | |
|     { AV_CODEC_ID_PCM_S32LE,       MKTAG('i', 'n', '3', '2') },
 | |
|     { AV_CODEC_ID_PCM_S8,          MKTAG('s', 'o', 'w', 't') },
 | |
|     { AV_CODEC_ID_PCM_U8,          MKTAG('r', 'a', 'w', ' ') },
 | |
|     { AV_CODEC_ID_PCM_U8,          MKTAG('N', 'O', 'N', 'E') },
 | |
|     { AV_CODEC_ID_QCELP,           MKTAG('Q', 'c', 'l', 'p') },
 | |
|     { AV_CODEC_ID_QCELP,           MKTAG('Q', 'c', 'l', 'q') },
 | |
|     { AV_CODEC_ID_QCELP,           MKTAG('s', 'q', 'c', 'p') }, /* ISO Media fourcc */
 | |
|     { AV_CODEC_ID_QDM2,            MKTAG('Q', 'D', 'M', '2') },
 | |
|     { AV_CODEC_ID_QDMC,            MKTAG('Q', 'D', 'M', 'C') },
 | |
|     { AV_CODEC_ID_SPEEX,           MKTAG('s', 'p', 'e', 'x') }, /* Flash Media Server */
 | |
|     { AV_CODEC_ID_WMAV2,           MKTAG('W', 'M', 'A', '2') },
 | |
|     { AV_CODEC_ID_NONE, 0 },
 | |
| };
 | |
| 
 | |
| const AVCodecTag ff_codec_movsubtitle_tags[] = {
 | |
|     { AV_CODEC_ID_MOV_TEXT, MKTAG('t', 'e', 'x', 't') },
 | |
|     { AV_CODEC_ID_MOV_TEXT, MKTAG('t', 'x', '3', 'g') },
 | |
|     { AV_CODEC_ID_EIA_608,  MKTAG('c', '6', '0', '8') },
 | |
|     { AV_CODEC_ID_NONE, 0 },
 | |
| };
 | |
| 
 | |
| /* map numeric codes from mdhd atom to ISO 639 */
 | |
| /* cf. QTFileFormat.pdf p253, qtff.pdf p205 */
 | |
| /* http://developer.apple.com/documentation/mac/Text/Text-368.html */
 | |
| /* deprecated by putting the code as 3*5bit ascii */
 | |
| static const char mov_mdhd_language_map[][4] = {
 | |
|     /* 0-9 */
 | |
|     "eng", "fra", "ger", "ita", "dut", "sve", "spa", "dan", "por", "nor",
 | |
|     "heb", "jpn", "ara", "fin", "gre", "ice", "mlt", "tur", "hr "/*scr*/, "chi"/*ace?*/,
 | |
|     "urd", "hin", "tha", "kor", "lit", "pol", "hun", "est", "lav",    "",
 | |
|     "fo ",    "", "rus", "chi",    "", "iri", "alb", "ron", "ces", "slk",
 | |
|     "slv", "yid", "sr ", "mac", "bul", "ukr", "bel", "uzb", "kaz", "aze",
 | |
|     /*?*/
 | |
|     "aze", "arm", "geo", "mol", "kir", "tgk", "tuk", "mon",    "", "pus",
 | |
|     "kur", "kas", "snd", "tib", "nep", "san", "mar", "ben", "asm", "guj",
 | |
|     "pa ", "ori", "mal", "kan", "tam", "tel",    "", "bur", "khm", "lao",
 | |
|     /*                   roman? arabic? */
 | |
|     "vie", "ind", "tgl", "may", "may", "amh", "tir", "orm", "som", "swa",
 | |
|     /*==rundi?*/
 | |
|        "", "run",    "", "mlg", "epo",    "",    "",    "",    "",    "",
 | |
|     /* 100 */
 | |
|        "",    "",    "",    "",    "",    "",    "",    "",    "",    "",
 | |
|        "",    "",    "",    "",    "",    "",    "",    "",    "",    "",
 | |
|        "",    "",    "",    "",    "",    "",    "",    "", "wel", "baq",
 | |
|     "cat", "lat", "que", "grn", "aym", "tat", "uig", "dzo", "jav"
 | |
| };
 | |
| 
 | |
| int ff_mov_iso639_to_lang(const char lang[4], int mp4)
 | |
| {
 | |
|     int i, code = 0;
 | |
| 
 | |
|     /* old way, only for QT? */
 | |
|     for (i = 0; lang[0] && !mp4 && i < FF_ARRAY_ELEMS(mov_mdhd_language_map); i++) {
 | |
|         if (!strcmp(lang, mov_mdhd_language_map[i]))
 | |
|             return i;
 | |
|     }
 | |
|     /* XXX:can we do that in mov too? */
 | |
|     if (!mp4)
 | |
|         return -1;
 | |
|     /* handle undefined as such */
 | |
|     if (lang[0] == '\0')
 | |
|         lang = "und";
 | |
|     /* 5bit ascii */
 | |
|     for (i = 0; i < 3; i++) {
 | |
|         uint8_t c = lang[i];
 | |
|         c -= 0x60;
 | |
|         if (c > 0x1f)
 | |
|             return -1;
 | |
|         code <<= 5;
 | |
|         code |= c;
 | |
|     }
 | |
|     return code;
 | |
| }
 | |
| 
 | |
| int ff_mov_lang_to_iso639(unsigned code, char to[4])
 | |
| {
 | |
|     int i;
 | |
|     memset(to, 0, 4);
 | |
|     /* is it the mangled iso code? */
 | |
|     /* see http://www.geocities.com/xhelmboyx/quicktime/formats/mp4-layout.txt */
 | |
|     if (code >= 0x400 && code != 0x7fff) {
 | |
|         for (i = 2; i >= 0; i--) {
 | |
|             to[i] = 0x60 + (code & 0x1f);
 | |
|             code >>= 5;
 | |
|         }
 | |
|         return 1;
 | |
|     }
 | |
|     /* old fashion apple lang code */
 | |
|     if (code >= FF_ARRAY_ELEMS(mov_mdhd_language_map))
 | |
|         return 0;
 | |
|     if (!mov_mdhd_language_map[code][0])
 | |
|         return 0;
 | |
|     memcpy(to, mov_mdhd_language_map[code], 4);
 | |
|     return 1;
 | |
| }
 | |
| 
 | |
| int ff_mp4_read_descr_len(AVIOContext *pb)
 | |
| {
 | |
|     int len = 0;
 | |
|     int count = 4;
 | |
|     while (count--) {
 | |
|         int c = avio_r8(pb);
 | |
|         len = (len << 7) | (c & 0x7f);
 | |
|         if (!(c & 0x80))
 | |
|             break;
 | |
|     }
 | |
|     return len;
 | |
| }
 | |
| 
 | |
| int ff_mp4_read_descr(AVFormatContext *fc, AVIOContext *pb, int *tag)
 | |
| {
 | |
|     int len;
 | |
|     *tag = avio_r8(pb);
 | |
|     len = ff_mp4_read_descr_len(pb);
 | |
|     av_dlog(fc, "MPEG4 description: tag=0x%02x len=%d\n", *tag, len);
 | |
|     return len;
 | |
| }
 | |
| 
 | |
| void ff_mp4_parse_es_descr(AVIOContext *pb, int *es_id)
 | |
| {
 | |
|      int flags;
 | |
|      if (es_id) *es_id = avio_rb16(pb);
 | |
|      else                avio_rb16(pb);
 | |
|      flags = avio_r8(pb);
 | |
|      if (flags & 0x80) //streamDependenceFlag
 | |
|          avio_rb16(pb);
 | |
|      if (flags & 0x40) { //URL_Flag
 | |
|          int len = avio_r8(pb);
 | |
|          avio_skip(pb, len);
 | |
|      }
 | |
|      if (flags & 0x20) //OCRstreamFlag
 | |
|          avio_rb16(pb);
 | |
| }
 | |
| 
 | |
| static const AVCodecTag mp4_audio_types[] = {
 | |
|     { AV_CODEC_ID_MP3ON4, AOT_PS   }, /* old mp3on4 draft */
 | |
|     { AV_CODEC_ID_MP3ON4, AOT_L1   }, /* layer 1 */
 | |
|     { AV_CODEC_ID_MP3ON4, AOT_L2   }, /* layer 2 */
 | |
|     { AV_CODEC_ID_MP3ON4, AOT_L3   }, /* layer 3 */
 | |
|     { AV_CODEC_ID_MP4ALS, AOT_ALS  }, /* MPEG-4 ALS */
 | |
|     { AV_CODEC_ID_NONE,   AOT_NULL },
 | |
| };
 | |
| 
 | |
| int ff_mp4_read_dec_config_descr(AVFormatContext *fc, AVStream *st, AVIOContext *pb)
 | |
| {
 | |
|     int len, tag;
 | |
|     int object_type_id = avio_r8(pb);
 | |
|     avio_r8(pb); /* stream type */
 | |
|     avio_rb24(pb); /* buffer size db */
 | |
|     avio_rb32(pb); /* max bitrate */
 | |
|     avio_rb32(pb); /* avg bitrate */
 | |
| 
 | |
|     st->codec->codec_id= ff_codec_get_id(ff_mp4_obj_type, object_type_id);
 | |
|     av_dlog(fc, "esds object type id 0x%02x\n", object_type_id);
 | |
|     len = ff_mp4_read_descr(fc, pb, &tag);
 | |
|     if (tag == MP4DecSpecificDescrTag) {
 | |
|         av_dlog(fc, "Specific MPEG4 header len=%d\n", len);
 | |
|         if (!len || (uint64_t)len > (1<<30))
 | |
|             return -1;
 | |
|         av_free(st->codec->extradata);
 | |
|         st->codec->extradata = av_mallocz(len + FF_INPUT_BUFFER_PADDING_SIZE);
 | |
|         if (!st->codec->extradata)
 | |
|             return AVERROR(ENOMEM);
 | |
|         avio_read(pb, st->codec->extradata, len);
 | |
|         st->codec->extradata_size = len;
 | |
|         if (st->codec->codec_id == AV_CODEC_ID_AAC) {
 | |
|             MPEG4AudioConfig cfg;
 | |
|             avpriv_mpeg4audio_get_config(&cfg, st->codec->extradata,
 | |
|                                          st->codec->extradata_size * 8, 1);
 | |
|             st->codec->channels = cfg.channels;
 | |
|             if (cfg.object_type == 29 && cfg.sampling_index < 3) // old mp3on4
 | |
|                 st->codec->sample_rate = avpriv_mpa_freq_tab[cfg.sampling_index];
 | |
|             else if (cfg.ext_sample_rate)
 | |
|                 st->codec->sample_rate = cfg.ext_sample_rate;
 | |
|             else
 | |
|                 st->codec->sample_rate = cfg.sample_rate;
 | |
|             av_dlog(fc, "mp4a config channels %d obj %d ext obj %d "
 | |
|                     "sample rate %d ext sample rate %d\n", st->codec->channels,
 | |
|                     cfg.object_type, cfg.ext_object_type,
 | |
|                     cfg.sample_rate, cfg.ext_sample_rate);
 | |
|             if (!(st->codec->codec_id = ff_codec_get_id(mp4_audio_types,
 | |
|                                                         cfg.object_type)))
 | |
|                 st->codec->codec_id = AV_CODEC_ID_AAC;
 | |
|         }
 | |
|     }
 | |
|     return 0;
 | |
| }
 | |
| 
 | |
| typedef struct MovChannelLayout {
 | |
|     int64_t  channel_layout;
 | |
|     uint32_t layout_tag;
 | |
| } MovChannelLayout;
 | |
| 
 | |
| static const MovChannelLayout mov_channel_layout[] = {
 | |
|     { AV_CH_LAYOUT_MONO,                         (100<<16) | 1}, // kCAFChannelLayoutTag_Mono
 | |
|     { AV_CH_LAYOUT_STEREO,                       (101<<16) | 2}, // kCAFChannelLayoutTag_Stereo
 | |
|     { AV_CH_LAYOUT_STEREO,                       (102<<16) | 2}, // kCAFChannelLayoutTag_StereoHeadphones
 | |
|     { AV_CH_LAYOUT_2_1,                          (131<<16) | 3}, // kCAFChannelLayoutTag_ITU_2_1
 | |
|     { AV_CH_LAYOUT_QUAD,                         (132<<16) | 4}, // kCAFChannelLayoutTag_ITU_2_2
 | |
|     { AV_CH_LAYOUT_2_2,                          (132<<16) | 4}, // kCAFChannelLayoutTag_ITU_2_2
 | |
|     { AV_CH_LAYOUT_QUAD,                         (108<<16) | 4}, // kCAFChannelLayoutTag_Quadraphonic
 | |
|     { AV_CH_LAYOUT_SURROUND,                     (113<<16) | 3}, // kCAFChannelLayoutTag_MPEG_3_0_A
 | |
|     { AV_CH_LAYOUT_4POINT0,                      (115<<16) | 4}, // kCAFChannelLayoutTag_MPEG_4_0_A
 | |
|     { AV_CH_LAYOUT_5POINT0_BACK,                 (117<<16) | 5}, // kCAFChannelLayoutTag_MPEG_5_0_A
 | |
|     { AV_CH_LAYOUT_5POINT0,                      (117<<16) | 5}, // kCAFChannelLayoutTag_MPEG_5_0_A
 | |
|     { AV_CH_LAYOUT_5POINT1_BACK,                 (121<<16) | 6}, // kCAFChannelLayoutTag_MPEG_5_1_A
 | |
|     { AV_CH_LAYOUT_5POINT1,                      (121<<16) | 6}, // kCAFChannelLayoutTag_MPEG_5_1_A
 | |
|     { AV_CH_LAYOUT_7POINT1,                      (128<<16) | 8}, // kCAFChannelLayoutTag_MPEG_7_1_C
 | |
|     { AV_CH_LAYOUT_7POINT1_WIDE,                 (126<<16) | 8}, // kCAFChannelLayoutTag_MPEG_7_1_A
 | |
|     { AV_CH_LAYOUT_5POINT1_BACK|AV_CH_LAYOUT_STEREO_DOWNMIX, (130<<16) | 8}, // kCAFChannelLayoutTag_SMPTE_DTV
 | |
|     { AV_CH_LAYOUT_STEREO|AV_CH_LOW_FREQUENCY,   (133<<16) | 3}, // kCAFChannelLayoutTag_DVD_4
 | |
|     { AV_CH_LAYOUT_2_1|AV_CH_LOW_FREQUENCY,      (134<<16) | 4}, // kCAFChannelLayoutTag_DVD_5
 | |
|     { AV_CH_LAYOUT_QUAD|AV_CH_LOW_FREQUENCY,     (135<<16) | 4}, // kCAFChannelLayoutTag_DVD_6
 | |
|     { AV_CH_LAYOUT_2_2|AV_CH_LOW_FREQUENCY,      (135<<16) | 4}, // kCAFChannelLayoutTag_DVD_6
 | |
|     { AV_CH_LAYOUT_SURROUND|AV_CH_LOW_FREQUENCY, (136<<16) | 4}, // kCAFChannelLayoutTag_DVD_10
 | |
|     { AV_CH_LAYOUT_4POINT0|AV_CH_LOW_FREQUENCY,  (137<<16) | 5}, // kCAFChannelLayoutTag_DVD_11
 | |
|     { 0, 0},
 | |
| };
 | |
| #if 0
 | |
| int ff_mov_read_chan(AVFormatContext *s, AVStream *st, int64_t size)
 | |
| {
 | |
|     AVCodecContext *codec= st->codec;
 | |
|     uint32_t layout_tag;
 | |
|     AVIOContext *pb = s->pb;
 | |
|     const MovChannelLayout *layouts = mov_channel_layout;
 | |
| 
 | |
|     if (size < 12)
 | |
|         return AVERROR_INVALIDDATA;
 | |
| 
 | |
|     layout_tag = avio_rb32(pb);
 | |
|     size -= 4;
 | |
|     if (layout_tag == 0) { // kCAFChannelLayoutTag_UseChannelDescriptions
 | |
|         // Channel descriptions not implemented
 | |
|         av_log_ask_for_sample(s, "Unimplemented container channel layout.\n");
 | |
|         avio_skip(pb, size);
 | |
|         return 0;
 | |
|     }
 | |
|     if (layout_tag == 0x10000) { // kCAFChannelLayoutTag_UseChannelBitmap
 | |
|         codec->channel_layout = avio_rb32(pb);
 | |
|         size -= 4;
 | |
|         avio_skip(pb, size);
 | |
|         return 0;
 | |
|     }
 | |
|     while (layouts->channel_layout) {
 | |
|         if (layout_tag == layouts->layout_tag) {
 | |
|             codec->channel_layout = layouts->channel_layout;
 | |
|             break;
 | |
|         }
 | |
|         layouts++;
 | |
|     }
 | |
|     if (!codec->channel_layout)
 | |
|         av_log(s, AV_LOG_WARNING, "Unknown container channel layout.\n");
 | |
|     avio_skip(pb, size);
 | |
| 
 | |
|     return 0;
 | |
| }
 | |
| #endif
 | |
| 
 | |
| void ff_mov_write_chan(AVIOContext *pb, int64_t channel_layout)
 | |
| {
 | |
|     const MovChannelLayout *layouts;
 | |
|     uint32_t layout_tag = 0;
 | |
| 
 | |
|     for (layouts = mov_channel_layout; layouts->channel_layout; layouts++)
 | |
|         if (channel_layout == layouts->channel_layout) {
 | |
|             layout_tag = layouts->layout_tag;
 | |
|             break;
 | |
|         }
 | |
| 
 | |
|     if (layout_tag) {
 | |
|         avio_wb32(pb, layout_tag); // mChannelLayoutTag
 | |
|         avio_wb32(pb, 0);          // mChannelBitmap
 | |
|     } else {
 | |
|         avio_wb32(pb, 0x10000);    // kCAFChannelLayoutTag_UseChannelBitmap
 | |
|         avio_wb32(pb, channel_layout);
 | |
|     }
 | |
|     avio_wb32(pb, 0);              // mNumberChannelDescriptions
 | |
| }
 | |
| 
 |