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FFmpeg/libavformat/isom.c

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  1. /*

  2.  * ISO Media common code

  3.  * Copyright (c) 2001 Fabrice Bellard

  4.  * Copyright (c) 2002 Francois Revol <revol@free.fr>

  5.  * Copyright (c) 2006 Baptiste Coudurier <baptiste.coudurier@free.fr>

  6.  *

  7.  * This file is part of FFmpeg.

  8.  *

  9.  * FFmpeg is free software; you can redistribute it and/or

  10.  * modify it under the terms of the GNU Lesser General Public

  11.  * License as published by the Free Software Foundation; either

  12.  * version 2.1 of the License, or (at your option) any later version.

  13.  *

  14.  * FFmpeg is distributed in the hope that it will be useful,

  15.  * but WITHOUT ANY WARRANTY; without even the implied warranty of

  16.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

  17.  * Lesser General Public License for more details.

  18.  *

  19.  * You should have received a copy of the GNU Lesser General Public

  20.  * License along with FFmpeg; if not, write to the Free Software

  21.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

  22.  */

  23. 

  24. //#define DEBUG

  25. 

  26. #include "avformat.h"

  27. #include "internal.h"

  28. #include "isom.h"

  29. #include "riff.h"

  30. #include "libavcodec/mpeg4audio.h"

  31. #include "libavcodec/mpegaudiodata.h"

  32. 

  33. /* http://www.mp4ra.org */

  34. /* ordered by muxing preference */

  35. const AVCodecTag ff_mp4_obj_type[] = {

  36.     { CODEC_ID_MOV_TEXT  , 0x08 },

  37.     { CODEC_ID_MPEG4     , 0x20 },

  38.     { CODEC_ID_H264      , 0x21 },

  39.     { CODEC_ID_AAC       , 0x40 },

  40.     { CODEC_ID_MP4ALS    , 0x40 }, /* 14496-3 ALS */

  41.     { CODEC_ID_MPEG2VIDEO, 0x61 }, /* MPEG2 Main */

  42.     { CODEC_ID_MPEG2VIDEO, 0x60 }, /* MPEG2 Simple */

  43.     { CODEC_ID_MPEG2VIDEO, 0x62 }, /* MPEG2 SNR */

  44.     { CODEC_ID_MPEG2VIDEO, 0x63 }, /* MPEG2 Spatial */

  45.     { CODEC_ID_MPEG2VIDEO, 0x64 }, /* MPEG2 High */

  46.     { CODEC_ID_MPEG2VIDEO, 0x65 }, /* MPEG2 422 */

  47.     { CODEC_ID_AAC       , 0x66 }, /* MPEG2 AAC Main */

  48.     { CODEC_ID_AAC       , 0x67 }, /* MPEG2 AAC Low */

  49.     { CODEC_ID_AAC       , 0x68 }, /* MPEG2 AAC SSR */

  50.     { CODEC_ID_MP3       , 0x69 }, /* 13818-3 */

  51.     { CODEC_ID_MP2       , 0x69 }, /* 11172-3 */

  52.     { CODEC_ID_MPEG1VIDEO, 0x6A }, /* 11172-2 */

  53.     { CODEC_ID_MP3       , 0x6B }, /* 11172-3 */

  54.     { CODEC_ID_MJPEG     , 0x6C }, /* 10918-1 */

  55.     { CODEC_ID_PNG       , 0x6D },

  56.     { CODEC_ID_JPEG2000  , 0x6E }, /* 15444-1 */

  57.     { CODEC_ID_VC1       , 0xA3 },

  58.     { CODEC_ID_DIRAC     , 0xA4 },

  59.     { CODEC_ID_AC3       , 0xA5 },

  60.     { CODEC_ID_DTS       , 0xA9 }, /* mp4ra.org */

  61.     { CODEC_ID_VORBIS    , 0xDD }, /* non standard, gpac uses it */

  62.     { CODEC_ID_DVD_SUBTITLE, 0xE0 }, /* non standard, see unsupported-embedded-subs-2.mp4 */

  63.     { CODEC_ID_QCELP     , 0xE1 },

  64.     { CODEC_ID_MPEG4SYSTEMS, 0x01 },

  65.     { CODEC_ID_MPEG4SYSTEMS, 0x02 },

  66.     { CODEC_ID_NONE      ,    0 },

  67. };

  68. 

  69. const AVCodecTag codec_movvideo_tags[] = {

  70. /*  { CODEC_ID_, MKTAG('I', 'V', '5', '0') }, *//* Indeo 5.0 */

  71. 

  72.     { CODEC_ID_RAWVIDEO, MKTAG('r', 'a', 'w', ' ') }, /* Uncompressed RGB */

  73.     { CODEC_ID_RAWVIDEO, MKTAG('y', 'u', 'v', '2') }, /* Uncompressed YUV422 */

  74.     { CODEC_ID_RAWVIDEO, MKTAG('A', 'V', 'U', 'I') }, /* YUV with alpha-channel (AVID Uncompressed) */

  75.     { CODEC_ID_RAWVIDEO, MKTAG('2', 'v', 'u', 'y') }, /* UNCOMPRESSED 8BIT 4:2:2 */

  76.     { CODEC_ID_RAWVIDEO, MKTAG('y', 'u', 'v', 's') }, /* same as 2vuy but byte swapped */

  77. 

  78.     { CODEC_ID_RAWVIDEO, MKTAG('L', '5', '5', '5') },

  79.     { CODEC_ID_RAWVIDEO, MKTAG('L', '5', '6', '5') },

  80.     { CODEC_ID_RAWVIDEO, MKTAG('B', '5', '6', '5') },

  81.     { CODEC_ID_RAWVIDEO, MKTAG('2', '4', 'B', 'G') },

  82.     { CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 'A') },

  83.     { CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 'A') },

  84.     { CODEC_ID_RAWVIDEO, MKTAG('A', 'B', 'G', 'R') },

  85.     { CODEC_ID_RAWVIDEO, MKTAG('b', '1', '6', 'g') },

  86.     { CODEC_ID_RAWVIDEO, MKTAG('b', '4', '8', 'r') },

  87.     { CODEC_ID_RAWVIDEO, MKTAG('D', 'V', 'O', 'O') }, /* Digital Voodoo SD 8 Bit */

  88. 

  89.     { CODEC_ID_R10K,   MKTAG('R', '1', '0', 'k') }, /* UNCOMPRESSED 10BIT RGB */

  90.     { CODEC_ID_R10K,   MKTAG('R', '1', '0', 'g') }, /* UNCOMPRESSED 10BIT RGB */

  91.     { CODEC_ID_R210,   MKTAG('r', '2', '1', '0') }, /* UNCOMPRESSED 10BIT RGB */

  92.     { CODEC_ID_V210,   MKTAG('v', '2', '1', '0') }, /* UNCOMPRESSED 10BIT 4:2:2 */

  93. 

  94.     { CODEC_ID_MJPEG,  MKTAG('j', 'p', 'e', 'g') }, /* PhotoJPEG */

  95.     { CODEC_ID_MJPEG,  MKTAG('m', 'j', 'p', 'a') }, /* Motion-JPEG (format A) */

  96.     { CODEC_ID_MJPEG,  MKTAG('A', 'V', 'D', 'J') }, /* MJPEG with alpha-channel (AVID JFIF meridien compressed) */

  97. /*  { CODEC_ID_MJPEG,  MKTAG('A', 'V', 'R', 'n') }, *//* MJPEG with alpha-channel (AVID ABVB/Truevision NuVista) */

  98.     { CODEC_ID_MJPEG,  MKTAG('d', 'm', 'b', '1') }, /* Motion JPEG OpenDML */

  99.     { CODEC_ID_MJPEGB, MKTAG('m', 'j', 'p', 'b') }, /* Motion-JPEG (format B) */

  100. 

  101.     { CODEC_ID_SVQ1, MKTAG('S', 'V', 'Q', '1') }, /* Sorenson Video v1 */

  102.     { CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', '1') }, /* Sorenson Video v1 */

  103.     { CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', 'i') }, /* Sorenson Video v1 (from QT specs)*/

  104.     { CODEC_ID_SVQ3, MKTAG('S', 'V', 'Q', '3') }, /* Sorenson Video v3 */

  105. 

  106.     { CODEC_ID_MPEG4, MKTAG('m', 'p', '4', 'v') },

  107.     { CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', 'X') }, /* OpenDiVX *//* sample files at http://heroinewarrior.com/xmovie.php3 use this tag */

  108.     { CODEC_ID_MPEG4, MKTAG('X', 'V', 'I', 'D') },

  109.     { CODEC_ID_MPEG4, MKTAG('3', 'I', 'V', '2') }, /* experimental: 3IVX files before ivx D4 4.5.1 */

  110. 

  111.     { CODEC_ID_H263, MKTAG('h', '2', '6', '3') }, /* H263 */

  112.     { CODEC_ID_H263, MKTAG('s', '2', '6', '3') }, /* H263 ?? works */

  113. 

  114.     { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', 'p') }, /* DV PAL */

  115.     { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', ' ') }, /* DV NTSC */

  116.     { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'p', 'p') }, /* DVCPRO PAL produced by FCP */

  117.     { CODEC_ID_DVVIDEO, MKTAG('d', 'v', '5', 'p') }, /* DVCPRO50 PAL produced by FCP */

  118.     { CODEC_ID_DVVIDEO, MKTAG('d', 'v', '5', 'n') }, /* DVCPRO50 NTSC produced by FCP */

  119.     { CODEC_ID_DVVIDEO, MKTAG('A', 'V', 'd', 'v') }, /* AVID DV */

  120.     { CODEC_ID_DVVIDEO, MKTAG('A', 'V', 'd', '1') }, /* AVID DV100 */

  121.     { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', 'q') }, /* DVCPRO HD 720p50 */

  122.     { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', 'p') }, /* DVCPRO HD 720p60 */

  123.     { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '1') },

  124.     { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '2') },

  125.     { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '4') },

  126.     { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '5') }, /* DVCPRO HD 50i produced by FCP */

  127.     { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '6') }, /* DVCPRO HD 60i produced by FCP */

  128.     { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '3') }, /* DVCPRO HD 30p produced by FCP */

  129. 

  130.     { CODEC_ID_VP3,     MKTAG('V', 'P', '3', '1') }, /* On2 VP3 */

  131.     { CODEC_ID_RPZA,    MKTAG('r', 'p', 'z', 'a') }, /* Apple Video (RPZA) */

  132.     { CODEC_ID_CINEPAK, MKTAG('c', 'v', 'i', 'd') }, /* Cinepak */

  133.     { CODEC_ID_8BPS,    MKTAG('8', 'B', 'P', 'S') }, /* Planar RGB (8BPS) */

  134.     { CODEC_ID_SMC,     MKTAG('s', 'm', 'c', ' ') }, /* Apple Graphics (SMC) */

  135.     { CODEC_ID_QTRLE,   MKTAG('r', 'l', 'e', ' ') }, /* Apple Animation (RLE) */

  136.     { CODEC_ID_MSRLE,   MKTAG('W', 'R', 'L', 'E') },

  137.     { CODEC_ID_QDRAW,   MKTAG('q', 'd', 'r', 'w') }, /* QuickDraw */

  138. 

  139.     { CODEC_ID_RAWVIDEO, MKTAG('W', 'R', 'A', 'W') },

  140. 

  141.     { CODEC_ID_H264, MKTAG('a', 'v', 'c', '1') }, /* AVC-1/H.264 */

  142.     { CODEC_ID_H264, MKTAG('a', 'i', '5', 'p') }, /* AVC-Intra  50M 720p24/30/60 */

  143.     { CODEC_ID_H264, MKTAG('a', 'i', '5', 'q') }, /* AVC-Intra  50M 720p25/50 */

  144.     { CODEC_ID_H264, MKTAG('a', 'i', '5', '2') }, /* AVC-Intra  50M 1080p25/50 */

  145.     { CODEC_ID_H264, MKTAG('a', 'i', '5', '3') }, /* AVC-Intra  50M 1080p24/30/60 */

  146.     { CODEC_ID_H264, MKTAG('a', 'i', '5', '5') }, /* AVC-Intra  50M 1080i50 */

  147.     { CODEC_ID_H264, MKTAG('a', 'i', '5', '6') }, /* AVC-Intra  50M 1080i60 */

  148.     { CODEC_ID_H264, MKTAG('a', 'i', '1', 'p') }, /* AVC-Intra 100M 720p24/30/60 */

  149.     { CODEC_ID_H264, MKTAG('a', 'i', '1', 'q') }, /* AVC-Intra 100M 720p25/50 */

  150.     { CODEC_ID_H264, MKTAG('a', 'i', '1', '2') }, /* AVC-Intra 100M 1080p25/50 */

  151.     { CODEC_ID_H264, MKTAG('a', 'i', '1', '3') }, /* AVC-Intra 100M 1080p24/30/60 */

  152.     { CODEC_ID_H264, MKTAG('a', 'i', '1', '5') }, /* AVC-Intra 100M 1080i50 */

  153.     { CODEC_ID_H264, MKTAG('a', 'i', '1', '6') }, /* AVC-Intra 100M 1080i60 */

  154. 

  155.     { CODEC_ID_MPEG1VIDEO, MKTAG('m', '1', 'v', '1') }, /* Apple MPEG-1 Camcorder */

  156.     { CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'e', 'g') }, /* MPEG */

  157.     { CODEC_ID_MPEG1VIDEO, MKTAG('m', '1', 'v', ' ') },

  158.     { CODEC_ID_MPEG2VIDEO, MKTAG('m', '2', 'v', '1') }, /* Apple MPEG-2 Camcorder */

  159.     { CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '1') }, /* MPEG2 HDV 720p30 */

  160.     { CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '2') }, /* MPEG2 HDV 1080i60 */

  161.     { CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '3') }, /* MPEG2 HDV 1080i50 */

  162.     { CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '5') }, /* MPEG2 HDV 720p25 */

  163.     { CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '6') }, /* MPEG2 HDV 1080p24 */

  164.     { CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '7') }, /* MPEG2 HDV 1080p25 */

  165.     { CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '8') }, /* MPEG2 HDV 1080p30 */

  166.     { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '5', 'n') }, /* MPEG2 IMX NTSC 525/60 50mb/s produced by FCP */

  167.     { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '5', 'p') }, /* MPEG2 IMX PAL 625/50 50mb/s produced by FCP */

  168.     { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '4', 'n') }, /* MPEG2 IMX NTSC 525/60 40mb/s produced by FCP */

  169.     { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '4', 'p') }, /* MPEG2 IMX PAL 625/50 40mb/s produced by FCP */

  170.     { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '3', 'n') }, /* MPEG2 IMX NTSC 525/60 30mb/s produced by FCP */

  171.     { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '3', 'p') }, /* MPEG2 IMX PAL 625/50 30mb/s produced by FCP */

  172.     { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', '4') }, /* XDCAM HD422 720p24 CBR */

  173.     { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', '5') }, /* XDCAM HD422 720p25 CBR */

  174.     { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', '9') }, /* XDCAM HD422 720p60 CBR */

  175.     { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'a') }, /* XDCAM HD422 720p50 CBR */

  176.     { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'b') }, /* XDCAM HD422 1080i60 CBR */

  177.     { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'c') }, /* XDCAM HD422 1080i50 CBR */

  178.     { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'd') }, /* XDCAM HD422 1080p24 CBR */

  179.     { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'e') }, /* XDCAM HD422 1080p25 CBR */

  180.     { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'f') }, /* XDCAM HD422 1080p30 CBR */

  181.     { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '1') }, /* XDCAM EX 720p30 VBR */

  182.     { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '2') }, /* XDCAM HD 1080i60 */

  183.     { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '3') }, /* XDCAM HD 1080i50 VBR */

  184.     { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '4') }, /* XDCAM EX 720p24 VBR */

  185.     { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '5') }, /* XDCAM EX 720p25 VBR */

  186.     { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '6') }, /* XDCAM HD 1080p24 VBR */

  187.     { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '7') }, /* XDCAM HD 1080p25 VBR */

  188.     { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '8') }, /* XDCAM HD 1080p30 VBR */

  189.     { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '9') }, /* XDCAM EX 720p60 VBR */

  190.     { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'a') }, /* XDCAM EX 720p50 VBR */

  191.     { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'b') }, /* XDCAM EX 1080i60 VBR */

  192.     { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'c') }, /* XDCAM EX 1080i50 VBR */

  193.     { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'd') }, /* XDCAM EX 1080p24 VBR */

  194.     { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'e') }, /* XDCAM EX 1080p25 VBR */

  195.     { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'f') }, /* XDCAM EX 1080p30 VBR */

  196.     { CODEC_ID_MPEG2VIDEO, MKTAG('A', 'V', 'm', 'p') }, /* AVID IMX PAL */

  197. 

  198.     { CODEC_ID_JPEG2000, MKTAG('m', 'j', 'p', '2') }, /* JPEG 2000 produced by FCP */

  199. 

  200.     { CODEC_ID_TARGA, MKTAG('t', 'g', 'a', ' ') }, /* Truevision Targa */

  201.     { CODEC_ID_TIFF,  MKTAG('t', 'i', 'f', 'f') }, /* TIFF embedded in MOV */

  202.     { CODEC_ID_GIF,   MKTAG('g', 'i', 'f', ' ') }, /* embedded gif files as frames (usually one "click to play movie" frame) */

  203.     { CODEC_ID_PNG,   MKTAG('p', 'n', 'g', ' ') },

  204. 

  205.     { CODEC_ID_VC1, MKTAG('v', 'c', '-', '1') }, /* SMPTE RP 2025 */

  206.     { CODEC_ID_CAVS, MKTAG('a', 'v', 's', '2') },

  207. 

  208.     { CODEC_ID_DIRAC, MKTAG('d', 'r', 'a', 'c') },

  209.     { CODEC_ID_DNXHD, MKTAG('A', 'V', 'd', 'n') }, /* AVID DNxHD */

  210. //  { CODEC_ID_FLV1,  MKTAG('H', '2', '6', '3') }, /* Flash Media Server */

  211.     { CODEC_ID_MSMPEG4V3, MKTAG('3', 'I', 'V', 'D') }, /* 3ivx DivX Doctor */

  212.     { CODEC_ID_RAWVIDEO, MKTAG('A', 'V', '1', 'x') }, /* AVID 1:1x */

  213.     { CODEC_ID_RAWVIDEO, MKTAG('A', 'V', 'u', 'p') },

  214.     { CODEC_ID_SGI,   MKTAG('s', 'g', 'i', ' ') }, /* SGI  */

  215.     { CODEC_ID_DPX,   MKTAG('d', 'p', 'x', ' ') }, /* DPX */

  216. 

  217.     { CODEC_ID_PRORES, MKTAG('a', 'p', 'c', 'h') }, /* Apple ProRes 422 High Quality */

  218.     { CODEC_ID_PRORES, MKTAG('a', 'p', 'c', 'n') }, /* Apple ProRes 422 Standard Definition */

  219.     { CODEC_ID_PRORES, MKTAG('a', 'p', 'c', 's') }, /* Apple ProRes 422 LT */

  220.     { CODEC_ID_PRORES, MKTAG('a', 'p', 'c', 'o') }, /* Apple ProRes 422 Proxy */

  221.     { CODEC_ID_PRORES, MKTAG('a', 'p', '4', 'h') }, /* Apple ProRes 4444 */

  222. 

  223.     { CODEC_ID_NONE, 0 },

  224. };

  225. 

  226. const AVCodecTag codec_movaudio_tags[] = {

  227.     { CODEC_ID_AAC,             MKTAG('m', 'p', '4', 'a') },

  228.     { CODEC_ID_AC3,             MKTAG('a', 'c', '-', '3') }, /* ETSI TS 102 366 Annex F */

  229.     { CODEC_ID_AC3,             MKTAG('s', 'a', 'c', '3') }, /* Nero Recode */

  230.     { CODEC_ID_ADPCM_IMA_QT,    MKTAG('i', 'm', 'a', '4') },

  231.     { CODEC_ID_ALAC,            MKTAG('a', 'l', 'a', 'c') },

  232.     { CODEC_ID_AMR_NB,          MKTAG('s', 'a', 'm', 'r') }, /* AMR-NB 3gp */

  233.     { CODEC_ID_AMR_WB,          MKTAG('s', 'a', 'w', 'b') }, /* AMR-WB 3gp */

  234.     { CODEC_ID_DTS,             MKTAG('d', 't', 's', 'c') }, /* mp4ra.org */

  235.     { CODEC_ID_DTS,             MKTAG('D', 'T', 'S', ' ') }, /* non-standard */

  236.     { CODEC_ID_DVAUDIO,         MKTAG('v', 'd', 'v', 'a') },

  237.     { CODEC_ID_DVAUDIO,         MKTAG('d', 'v', 'c', 'a') },

  238.     { CODEC_ID_EAC3,            MKTAG('e', 'c', '-', '3') }, /* ETSI TS 102 366 Annex F */

  239.     { CODEC_ID_GSM,             MKTAG('a', 'g', 's', 'm') },

  240.     { CODEC_ID_MACE3,           MKTAG('M', 'A', 'C', '3') },

  241.     { CODEC_ID_MACE6,           MKTAG('M', 'A', 'C', '6') },

  242.     { CODEC_ID_MP1,             MKTAG('.', 'm', 'p', '1') },

  243.     { CODEC_ID_MP2,             MKTAG('.', 'm', 'p', '2') },

  244.     { CODEC_ID_MP3,             MKTAG('.', 'm', 'p', '3') },

  245.     { CODEC_ID_MP3,             0x6D730055                },

  246.     { CODEC_ID_NELLYMOSER,      MKTAG('n', 'm', 'o', 's') }, /* Flash Media Server */

  247.     { CODEC_ID_PCM_ALAW,        MKTAG('a', 'l', 'a', 'w') },

  248.     { CODEC_ID_PCM_F32BE,       MKTAG('f', 'l', '3', '2') },

  249.     { CODEC_ID_PCM_F32LE,       MKTAG('f', 'l', '3', '2') },

  250.     { CODEC_ID_PCM_F64BE,       MKTAG('f', 'l', '6', '4') },

  251.     { CODEC_ID_PCM_F64LE,       MKTAG('f', 'l', '6', '4') },

  252.     { CODEC_ID_PCM_MULAW,       MKTAG('u', 'l', 'a', 'w') },

  253.     { CODEC_ID_PCM_S16BE,       MKTAG('t', 'w', 'o', 's') },

  254.     { CODEC_ID_PCM_S16LE,       MKTAG('s', 'o', 'w', 't') },

  255.     { CODEC_ID_PCM_S16LE,       MKTAG('l', 'p', 'c', 'm') },

  256.     { CODEC_ID_PCM_S24BE,       MKTAG('i', 'n', '2', '4') },

  257.     { CODEC_ID_PCM_S24LE,       MKTAG('i', 'n', '2', '4') },

  258.     { CODEC_ID_PCM_S32BE,       MKTAG('i', 'n', '3', '2') },

  259.     { CODEC_ID_PCM_S32LE,       MKTAG('i', 'n', '3', '2') },

  260.     { CODEC_ID_PCM_S8,          MKTAG('s', 'o', 'w', 't') },

  261.     { CODEC_ID_PCM_U8,          MKTAG('r', 'a', 'w', ' ') },

  262.     { CODEC_ID_PCM_U8,          MKTAG('N', 'O', 'N', 'E') },

  263.     { CODEC_ID_QCELP,           MKTAG('Q', 'c', 'l', 'p') },

  264.     { CODEC_ID_QCELP,           MKTAG('Q', 'c', 'l', 'q') },

  265.     { CODEC_ID_QCELP,           MKTAG('s', 'q', 'c', 'p') }, /* ISO Media fourcc */

  266.     { CODEC_ID_QDM2,            MKTAG('Q', 'D', 'M', '2') },

  267.     { CODEC_ID_QDMC,            MKTAG('Q', 'D', 'M', 'C') },

  268.     { CODEC_ID_SPEEX,           MKTAG('s', 'p', 'e', 'x') }, /* Flash Media Server */

  269.     { CODEC_ID_WMAV2,           MKTAG('W', 'M', 'A', '2') },

  270.     { CODEC_ID_NONE, 0 },

  271. };

  272. 

  273. const AVCodecTag ff_codec_movsubtitle_tags[] = {

  274.     { CODEC_ID_MOV_TEXT, MKTAG('t', 'e', 'x', 't') },

  275.     { CODEC_ID_MOV_TEXT, MKTAG('t', 'x', '3', 'g') },

  276.     { CODEC_ID_NONE, 0 },

  277. };

  278. 

  279. /* map numeric codes from mdhd atom to ISO 639 */

  280. /* cf. QTFileFormat.pdf p253, qtff.pdf p205 */

  281. /* http://developer.apple.com/documentation/mac/Text/Text-368.html */

  282. /* deprecated by putting the code as 3*5bit ascii */

  283. static const char mov_mdhd_language_map[][4] = {

  284.     /* 0-9 */

  285.     "eng", "fra", "ger", "ita", "dut", "sve", "spa", "dan", "por", "nor",

  286.     "heb", "jpn", "ara", "fin", "gre", "ice", "mlt", "tur", "hr "/*scr*/, "chi"/*ace?*/,

  287.     "urd", "hin", "tha", "kor", "lit", "pol", "hun", "est", "lav",    "",

  288.     "fo ",    "", "rus", "chi",    "", "iri", "alb", "ron", "ces", "slk",

  289.     "slv", "yid", "sr ", "mac", "bul", "ukr", "bel", "uzb", "kaz", "aze",

  290.     /*?*/

  291.     "aze", "arm", "geo", "mol", "kir", "tgk", "tuk", "mon",    "", "pus",

  292.     "kur", "kas", "snd", "tib", "nep", "san", "mar", "ben", "asm", "guj",

  293.     "pa ", "ori", "mal", "kan", "tam", "tel",    "", "bur", "khm", "lao",

  294.     /*                   roman? arabic? */

  295.     "vie", "ind", "tgl", "may", "may", "amh", "tir", "orm", "som", "swa",

  296.     /*==rundi?*/

  297.        "", "run",    "", "mlg", "epo",    "",    "",    "",    "",    "",

  298.     /* 100 */

  299.        "",    "",    "",    "",    "",    "",    "",    "",    "",    "",

  300.        "",    "",    "",    "",    "",    "",    "",    "",    "",    "",

  301.        "",    "",    "",    "",    "",    "",    "",    "", "wel", "baq",

  302.     "cat", "lat", "que", "grn", "aym", "tat", "uig", "dzo", "jav"

  303. };

  304. 

  305. int ff_mov_iso639_to_lang(const char lang[4], int mp4)

  306. {

  307.     int i, code = 0;

  308. 

  309.     /* old way, only for QT? */

  310.     for (i = 0; lang[0] && !mp4 && i < FF_ARRAY_ELEMS(mov_mdhd_language_map); i++) {

  311.         if (!strcmp(lang, mov_mdhd_language_map[i]))

  312.             return i;

  313.     }

  314.     /* XXX:can we do that in mov too? */

  315.     if (!mp4)

  316.         return -1;

  317.     /* handle undefined as such */

  318.     if (lang[0] == '\0')

  319.         lang = "und";

  320.     /* 5bit ascii */

  321.     for (i = 0; i < 3; i++) {

  322.         uint8_t c = lang[i];

  323.         c -= 0x60;

  324.         if (c > 0x1f)

  325.             return -1;

  326.         code <<= 5;

  327.         code |= c;

  328.     }

  329.     return code;

  330. }

  331. 

  332. int ff_mov_lang_to_iso639(unsigned code, char to[4])

  333. {

  334.     int i;

  335.     memset(to, 0, 4);

  336.     /* is it the mangled iso code? */

  337.     /* see http://www.geocities.com/xhelmboyx/quicktime/formats/mp4-layout.txt */

  338.     if (code > 138) {

  339.         for (i = 2; i >= 0; i--) {

  340.             to[i] = 0x60 + (code & 0x1f);

  341.             code >>= 5;

  342.         }

  343.         return 1;

  344.     }

  345.     /* old fashion apple lang code */

  346.     if (code >= FF_ARRAY_ELEMS(mov_mdhd_language_map))

  347.         return 0;

  348.     if (!mov_mdhd_language_map[code][0])

  349.         return 0;

  350.     memcpy(to, mov_mdhd_language_map[code], 4);

  351.     return 1;

  352. }

  353. 

  354. int ff_mp4_read_descr_len(AVIOContext *pb)

  355. {

  356.     int len = 0;

  357.     int count = 4;

  358.     while (count--) {

  359.         int c = avio_r8(pb);

  360.         len = (len << 7) | (c & 0x7f);

  361.         if (!(c & 0x80))

  362.             break;

  363.     }

  364.     return len;

  365. }

  366. 

  367. int ff_mp4_read_descr(AVFormatContext *fc, AVIOContext *pb, int *tag)

  368. {

  369.     int len;

  370.     *tag = avio_r8(pb);

  371.     len = ff_mp4_read_descr_len(pb);

  372.     av_dlog(fc, "MPEG4 description: tag=0x%02x len=%d\n", *tag, len);

  373.     return len;

  374. }

  375. 

  376. void ff_mp4_parse_es_descr(AVIOContext *pb, int *es_id)

  377. {

  378.      int flags;

  379.      if (es_id) *es_id = avio_rb16(pb);

  380.      else                avio_rb16(pb);

  381.      flags = avio_r8(pb);

  382.      if (flags & 0x80) //streamDependenceFlag

  383.          avio_rb16(pb);

  384.      if (flags & 0x40) { //URL_Flag

  385.          int len = avio_r8(pb);

  386.          avio_skip(pb, len);

  387.      }

  388.      if (flags & 0x20) //OCRstreamFlag

  389.          avio_rb16(pb);

  390. }

  391. 

  392. static const AVCodecTag mp4_audio_types[] = {

  393.     { CODEC_ID_MP3ON4, AOT_PS   }, /* old mp3on4 draft */

  394.     { CODEC_ID_MP3ON4, AOT_L1   }, /* layer 1 */

  395.     { CODEC_ID_MP3ON4, AOT_L2   }, /* layer 2 */

  396.     { CODEC_ID_MP3ON4, AOT_L3   }, /* layer 3 */

  397.     { CODEC_ID_MP4ALS, AOT_ALS  }, /* MPEG-4 ALS */

  398.     { CODEC_ID_NONE,   AOT_NULL },

  399. };

  400. 

  401. int ff_mp4_read_dec_config_descr(AVFormatContext *fc, AVStream *st, AVIOContext *pb)

  402. {

  403.     int len, tag;

  404.     int object_type_id = avio_r8(pb);

  405.     avio_r8(pb); /* stream type */

  406.     avio_rb24(pb); /* buffer size db */

  407.     avio_rb32(pb); /* max bitrate */

  408.     avio_rb32(pb); /* avg bitrate */

  409. 

  410.     st->codec->codec_id= ff_codec_get_id(ff_mp4_obj_type, object_type_id);

  411.     av_dlog(fc, "esds object type id 0x%02x\n", object_type_id);

  412.     len = ff_mp4_read_descr(fc, pb, &tag);

  413.     if (tag == MP4DecSpecificDescrTag) {

  414.         av_dlog(fc, "Specific MPEG4 header len=%d\n", len);

  415.         if (!len || (uint64_t)len > (1<<30))

  416.             return -1;

  417.         av_free(st->codec->extradata);

  418.         st->codec->extradata = av_mallocz(len + FF_INPUT_BUFFER_PADDING_SIZE);

  419.         if (!st->codec->extradata)

  420.             return AVERROR(ENOMEM);

  421.         avio_read(pb, st->codec->extradata, len);

  422.         st->codec->extradata_size = len;

  423.         if (st->codec->codec_id == CODEC_ID_AAC) {

  424.             MPEG4AudioConfig cfg;

  425.             avpriv_mpeg4audio_get_config(&cfg, st->codec->extradata,

  426.                                          st->codec->extradata_size * 8, 1);

  427.             st->codec->channels = cfg.channels;

  428.             if (cfg.object_type == 29 && cfg.sampling_index < 3) // old mp3on4

  429.                 st->codec->sample_rate = avpriv_mpa_freq_tab[cfg.sampling_index];

  430.             else if (cfg.ext_sample_rate)

  431.                 st->codec->sample_rate = cfg.ext_sample_rate;

  432.             else

  433.                 st->codec->sample_rate = cfg.sample_rate;

  434.             av_dlog(fc, "mp4a config channels %d obj %d ext obj %d "

  435.                     "sample rate %d ext sample rate %d\n", st->codec->channels,

  436.                     cfg.object_type, cfg.ext_object_type,

  437.                     cfg.sample_rate, cfg.ext_sample_rate);

  438.             if (!(st->codec->codec_id = ff_codec_get_id(mp4_audio_types,

  439.                                                         cfg.object_type)))

  440.                 st->codec->codec_id = CODEC_ID_AAC;

  441.         }

  442.     }

  443.     return 0;

  444. }

  445. 

  446. typedef struct MovChannelLayout {

  447.     int64_t  channel_layout;

  448.     uint32_t layout_tag;

  449. } MovChannelLayout;

  450. 

  451. static const MovChannelLayout mov_channel_layout[] = {

  452.     { AV_CH_LAYOUT_MONO,                         (100<<16) | 1}, // kCAFChannelLayoutTag_Mono

  453.     { AV_CH_LAYOUT_STEREO,                       (101<<16) | 2}, // kCAFChannelLayoutTag_Stereo

  454.     { AV_CH_LAYOUT_STEREO,                       (102<<16) | 2}, // kCAFChannelLayoutTag_StereoHeadphones

  455.     { AV_CH_LAYOUT_2_1,                          (131<<16) | 3}, // kCAFChannelLayoutTag_ITU_2_1

  456.     { AV_CH_LAYOUT_QUAD,                         (132<<16) | 4}, // kCAFChannelLayoutTag_ITU_2_2

  457.     { AV_CH_LAYOUT_2_2,                          (132<<16) | 4}, // kCAFChannelLayoutTag_ITU_2_2

  458.     { AV_CH_LAYOUT_QUAD,                         (108<<16) | 4}, // kCAFChannelLayoutTag_Quadraphonic

  459.     { AV_CH_LAYOUT_SURROUND,                     (113<<16) | 3}, // kCAFChannelLayoutTag_MPEG_3_0_A

  460.     { AV_CH_LAYOUT_4POINT0,                      (115<<16) | 4}, // kCAFChannelLayoutTag_MPEG_4_0_A

  461.     { AV_CH_LAYOUT_5POINT0_BACK,                 (117<<16) | 5}, // kCAFChannelLayoutTag_MPEG_5_0_A

  462.     { AV_CH_LAYOUT_5POINT0,                      (117<<16) | 5}, // kCAFChannelLayoutTag_MPEG_5_0_A

  463.     { AV_CH_LAYOUT_5POINT1_BACK,                 (121<<16) | 6}, // kCAFChannelLayoutTag_MPEG_5_1_A

  464.     { AV_CH_LAYOUT_5POINT1,                      (121<<16) | 6}, // kCAFChannelLayoutTag_MPEG_5_1_A

  465.     { AV_CH_LAYOUT_7POINT1,                      (128<<16) | 8}, // kCAFChannelLayoutTag_MPEG_7_1_C

  466.     { AV_CH_LAYOUT_7POINT1_WIDE,                 (126<<16) | 8}, // kCAFChannelLayoutTag_MPEG_7_1_A

  467.     { AV_CH_LAYOUT_5POINT1_BACK|AV_CH_LAYOUT_STEREO_DOWNMIX, (130<<16) | 8}, // kCAFChannelLayoutTag_SMPTE_DTV

  468.     { AV_CH_LAYOUT_STEREO|AV_CH_LOW_FREQUENCY,   (133<<16) | 3}, // kCAFChannelLayoutTag_DVD_4

  469.     { AV_CH_LAYOUT_2_1|AV_CH_LOW_FREQUENCY,      (134<<16) | 4}, // kCAFChannelLayoutTag_DVD_5

  470.     { AV_CH_LAYOUT_QUAD|AV_CH_LOW_FREQUENCY,     (135<<16) | 4}, // kCAFChannelLayoutTag_DVD_6

  471.     { AV_CH_LAYOUT_2_2|AV_CH_LOW_FREQUENCY,      (135<<16) | 4}, // kCAFChannelLayoutTag_DVD_6

  472.     { AV_CH_LAYOUT_SURROUND|AV_CH_LOW_FREQUENCY, (136<<16) | 4}, // kCAFChannelLayoutTag_DVD_10

  473.     { AV_CH_LAYOUT_4POINT0|AV_CH_LOW_FREQUENCY,  (137<<16) | 5}, // kCAFChannelLayoutTag_DVD_11

  474.     { 0, 0},

  475. };

  476. 

  477. void ff_mov_read_chan(AVFormatContext *s, int64_t size, AVCodecContext *codec)

  478. {

  479.     uint32_t layout_tag;

  480.     AVIOContext *pb = s->pb;

  481.     const MovChannelLayout *layouts = mov_channel_layout;

  482.     layout_tag = avio_rb32(pb);

  483.     size -= 4;

  484.     if (layout_tag == 0) { // kCAFChannelLayoutTag_UseChannelDescriptions

  485.         // Channel descriptions not implemented

  486.         av_log_ask_for_sample(s, "Unimplemented container channel layout.\n");

  487.         avio_skip(pb, size);

  488.         return;

  489.     }

  490.     if (layout_tag == 0x10000) { // kCAFChannelLayoutTag_UseChannelBitmap

  491.         codec->channel_layout = avio_rb32(pb);

  492.         size -= 4;

  493.         avio_skip(pb, size);

  494.         return;

  495.     }

  496.     while (layouts->channel_layout) {

  497.         if (layout_tag == layouts->layout_tag) {

  498.             codec->channel_layout = layouts->channel_layout;

  499.             break;

  500.         }

  501.         layouts++;

  502.     }

  503.     if (!codec->channel_layout)

  504.         av_log(s, AV_LOG_WARNING, "Unknown container channel layout.\n");

  505.     avio_skip(pb, size);

  506. }

  507. 

  508. void ff_mov_write_chan(AVIOContext *pb, int64_t channel_layout)

  509. {

  510.     const MovChannelLayout *layouts;

  511.     uint32_t layout_tag = 0;

  512. 

  513.     for (layouts = mov_channel_layout; layouts->channel_layout; layouts++)

  514.         if (channel_layout == layouts->channel_layout) {

  515.             layout_tag = layouts->layout_tag;

  516.             break;

  517.         }

  518. 

  519.     if (layout_tag) {

  520.         avio_wb32(pb, layout_tag); // mChannelLayoutTag

  521.         avio_wb32(pb, 0);          // mChannelBitmap

  522.     } else {

  523.         avio_wb32(pb, 0x10000);    // kCAFChannelLayoutTag_UseChannelBitmap

  524.         avio_wb32(pb, channel_layout);

  525.     }

  526.     avio_wb32(pb, 0);              // mNumberChannelDescriptions

  527. }