FFmpeg: libavformat/isom.c Source File

00001 /*
00002  * ISO Media common code
00003  * Copyright (c) 2001 Fabrice Bellard
00004  * Copyright (c) 2002 Francois Revol <revol@free.fr>
00005  * Copyright (c) 2006 Baptiste Coudurier <baptiste.coudurier@free.fr>
00006  *
00007  * This file is part of FFmpeg.
00008  *
00009  * FFmpeg is free software; you can redistribute it and/or
00010  * modify it under the terms of the GNU Lesser General Public
00011  * License as published by the Free Software Foundation; either
00012  * version 2.1 of the License, or (at your option) any later version.
00013  *
00014  * FFmpeg is distributed in the hope that it will be useful,
00015  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00016  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00017  * Lesser General Public License for more details.
00018  *
00019  * You should have received a copy of the GNU Lesser General Public
00020  * License along with FFmpeg; if not, write to the Free Software
00021  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
00022  */
00023 
00024 //#define DEBUG
00025 
00026 #include "avformat.h"
00027 #include "internal.h"
00028 #include "isom.h"
00029 #include "riff.h"
00030 #include "libavcodec/mpeg4audio.h"
00031 #include "libavcodec/mpegaudiodata.h"
00032 
00033 /* http://www.mp4ra.org */
00034 /* ordered by muxing preference */
00035 const AVCodecTag ff_mp4_obj_type[] = {
00036     { CODEC_ID_MOV_TEXT  , 0x08 },
00037     { CODEC_ID_MPEG4     , 0x20 },
00038     { CODEC_ID_H264      , 0x21 },
00039     { CODEC_ID_AAC       , 0x40 },
00040     { CODEC_ID_MP4ALS    , 0x40 }, /* 14496-3 ALS */
00041     { CODEC_ID_MPEG2VIDEO, 0x61 }, /* MPEG2 Main */
00042     { CODEC_ID_MPEG2VIDEO, 0x60 }, /* MPEG2 Simple */
00043     { CODEC_ID_MPEG2VIDEO, 0x62 }, /* MPEG2 SNR */
00044     { CODEC_ID_MPEG2VIDEO, 0x63 }, /* MPEG2 Spatial */
00045     { CODEC_ID_MPEG2VIDEO, 0x64 }, /* MPEG2 High */
00046     { CODEC_ID_MPEG2VIDEO, 0x65 }, /* MPEG2 422 */
00047     { CODEC_ID_AAC       , 0x66 }, /* MPEG2 AAC Main */
00048     { CODEC_ID_AAC       , 0x67 }, /* MPEG2 AAC Low */
00049     { CODEC_ID_AAC       , 0x68 }, /* MPEG2 AAC SSR */
00050     { CODEC_ID_MP3       , 0x69 }, /* 13818-3 */
00051     { CODEC_ID_MP2       , 0x69 }, /* 11172-3 */
00052     { CODEC_ID_MPEG1VIDEO, 0x6A }, /* 11172-2 */
00053     { CODEC_ID_MP3       , 0x6B }, /* 11172-3 */
00054     { CODEC_ID_MJPEG     , 0x6C }, /* 10918-1 */
00055     { CODEC_ID_PNG       , 0x6D },
00056     { CODEC_ID_JPEG2000  , 0x6E }, /* 15444-1 */
00057     { CODEC_ID_VC1       , 0xA3 },
00058     { CODEC_ID_DIRAC     , 0xA4 },
00059     { CODEC_ID_AC3       , 0xA5 },
00060     { CODEC_ID_DTS       , 0xA9 }, /* mp4ra.org */
00061     { CODEC_ID_VORBIS    , 0xDD }, /* non standard, gpac uses it */
00062     { CODEC_ID_DVD_SUBTITLE, 0xE0 }, /* non standard, see unsupported-embedded-subs-2.mp4 */
00063     { CODEC_ID_QCELP     , 0xE1 },
00064     { CODEC_ID_MPEG4SYSTEMS, 0x01 },
00065     { CODEC_ID_MPEG4SYSTEMS, 0x02 },
00066     { CODEC_ID_NONE      ,    0 },
00067 };
00068 
00069 const AVCodecTag ff_codec_movvideo_tags[] = {
00070 /*  { CODEC_ID_, MKTAG('I', 'V', '5', '0') }, *//* Indeo 5.0 */
00071 
00072     { CODEC_ID_RAWVIDEO, MKTAG('r', 'a', 'w', ' ') }, /* Uncompressed RGB */
00073     { CODEC_ID_RAWVIDEO, MKTAG('y', 'u', 'v', '2') }, /* Uncompressed YUV422 */
00074     { CODEC_ID_RAWVIDEO, MKTAG('2', 'v', 'u', 'y') }, /* UNCOMPRESSED 8BIT 4:2:2 */
00075     { CODEC_ID_RAWVIDEO, MKTAG('y', 'u', 'v', 's') }, /* same as 2vuy but byte swapped */
00076 
00077     { CODEC_ID_RAWVIDEO, MKTAG('L', '5', '5', '5') },
00078     { CODEC_ID_RAWVIDEO, MKTAG('L', '5', '6', '5') },
00079     { CODEC_ID_RAWVIDEO, MKTAG('B', '5', '6', '5') },
00080     { CODEC_ID_RAWVIDEO, MKTAG('2', '4', 'B', 'G') },
00081     { CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 'A') },
00082     { CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 'A') },
00083     { CODEC_ID_RAWVIDEO, MKTAG('A', 'B', 'G', 'R') },
00084     { CODEC_ID_RAWVIDEO, MKTAG('b', '1', '6', 'g') },
00085     { CODEC_ID_RAWVIDEO, MKTAG('b', '4', '8', 'r') },
00086     { CODEC_ID_RAWVIDEO, MKTAG('D', 'V', 'O', 'O') }, /* Digital Voodoo SD 8 Bit */
00087 
00088     { CODEC_ID_R10K,   MKTAG('R', '1', '0', 'k') }, /* UNCOMPRESSED 10BIT RGB */
00089     { CODEC_ID_R10K,   MKTAG('R', '1', '0', 'g') }, /* UNCOMPRESSED 10BIT RGB */
00090     { CODEC_ID_R210,   MKTAG('r', '2', '1', '0') }, /* UNCOMPRESSED 10BIT RGB */
00091     { CODEC_ID_AVUI,   MKTAG('A', 'V', 'U', 'I') }, /* AVID Uncompressed deinterleaved UYVY422 */
00092     { CODEC_ID_AVRP,   MKTAG('A', 'V', 'r', 'p') }, /* Avid 1:1 10-bit RGB Packer */
00093     { CODEC_ID_AVRP,   MKTAG('S', 'U', 'D', 'S') }, /* Avid DS Uncompressed */
00094     { CODEC_ID_V210,   MKTAG('v', '2', '1', '0') }, /* UNCOMPRESSED 10BIT 4:2:2 */
00095     { CODEC_ID_V308,   MKTAG('v', '3', '0', '8') }, /* UNCOMPRESSED  8BIT 4:4:4 */
00096     { CODEC_ID_V408,   MKTAG('v', '4', '0', '8') }, /* UNCOMPRESSED  8BIT 4:4:4:4 */
00097     { CODEC_ID_V410,   MKTAG('v', '4', '1', '0') }, /* UNCOMPRESSED 10BIT 4:4:4 */
00098     { CODEC_ID_Y41P,   MKTAG('Y', '4', '1', 'P') }, /* UNCOMPRESSED 12BIT 4:1:1 */
00099     { CODEC_ID_YUV4,   MKTAG('y', 'u', 'v', '4') }, /* libquicktime packed yuv420p */
00100 
00101     { CODEC_ID_MJPEG,  MKTAG('j', 'p', 'e', 'g') }, /* PhotoJPEG */
00102     { CODEC_ID_MJPEG,  MKTAG('m', 'j', 'p', 'a') }, /* Motion-JPEG (format A) */
00103     { CODEC_ID_MJPEG,  MKTAG('A', 'V', 'D', 'J') }, /* MJPEG with alpha-channel (AVID JFIF meridien compressed) */
00104 /*  { CODEC_ID_MJPEG,  MKTAG('A', 'V', 'R', 'n') }, *//* MJPEG with alpha-channel (AVID ABVB/Truevision NuVista) */
00105     { CODEC_ID_MJPEG,  MKTAG('d', 'm', 'b', '1') }, /* Motion JPEG OpenDML */
00106     { CODEC_ID_MJPEGB, MKTAG('m', 'j', 'p', 'b') }, /* Motion-JPEG (format B) */
00107 
00108     { CODEC_ID_SVQ1, MKTAG('S', 'V', 'Q', '1') }, /* Sorenson Video v1 */
00109     { CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', '1') }, /* Sorenson Video v1 */
00110     { CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', 'i') }, /* Sorenson Video v1 (from QT specs)*/
00111     { CODEC_ID_SVQ3, MKTAG('S', 'V', 'Q', '3') }, /* Sorenson Video v3 */
00112 
00113     { CODEC_ID_MPEG4, MKTAG('m', 'p', '4', 'v') },
00114     { CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', 'X') }, /* OpenDiVX *//* sample files at http://heroinewarrior.com/xmovie.php3 use this tag */
00115     { CODEC_ID_MPEG4, MKTAG('X', 'V', 'I', 'D') },
00116     { CODEC_ID_MPEG4, MKTAG('3', 'I', 'V', '2') }, /* experimental: 3IVX files before ivx D4 4.5.1 */
00117 
00118     { CODEC_ID_H263, MKTAG('h', '2', '6', '3') }, /* H263 */
00119     { CODEC_ID_H263, MKTAG('s', '2', '6', '3') }, /* H263 ?? works */
00120 
00121     { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', 'p') }, /* DV PAL */
00122     { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', ' ') }, /* DV NTSC */
00123     { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'p', 'p') }, /* DVCPRO PAL produced by FCP */
00124     { CODEC_ID_DVVIDEO, MKTAG('d', 'v', '5', 'p') }, /* DVCPRO50 PAL produced by FCP */
00125     { CODEC_ID_DVVIDEO, MKTAG('d', 'v', '5', 'n') }, /* DVCPRO50 NTSC produced by FCP */
00126     { CODEC_ID_DVVIDEO, MKTAG('A', 'V', 'd', 'v') }, /* AVID DV */
00127     { CODEC_ID_DVVIDEO, MKTAG('A', 'V', 'd', '1') }, /* AVID DV100 */
00128     { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', 'q') }, /* DVCPRO HD 720p50 */
00129     { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', 'p') }, /* DVCPRO HD 720p60 */
00130     { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '1') },
00131     { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '2') },
00132     { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '4') },
00133     { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '5') }, /* DVCPRO HD 50i produced by FCP */
00134     { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '6') }, /* DVCPRO HD 60i produced by FCP */
00135     { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '3') }, /* DVCPRO HD 30p produced by FCP */
00136 
00137     { CODEC_ID_VP3,     MKTAG('V', 'P', '3', '1') }, /* On2 VP3 */
00138     { CODEC_ID_RPZA,    MKTAG('r', 'p', 'z', 'a') }, /* Apple Video (RPZA) */
00139     { CODEC_ID_CINEPAK, MKTAG('c', 'v', 'i', 'd') }, /* Cinepak */
00140     { CODEC_ID_8BPS,    MKTAG('8', 'B', 'P', 'S') }, /* Planar RGB (8BPS) */
00141     { CODEC_ID_SMC,     MKTAG('s', 'm', 'c', ' ') }, /* Apple Graphics (SMC) */
00142     { CODEC_ID_QTRLE,   MKTAG('r', 'l', 'e', ' ') }, /* Apple Animation (RLE) */
00143     { CODEC_ID_MSRLE,   MKTAG('W', 'R', 'L', 'E') },
00144     { CODEC_ID_QDRAW,   MKTAG('q', 'd', 'r', 'w') }, /* QuickDraw */
00145 
00146     { CODEC_ID_RAWVIDEO, MKTAG('W', 'R', 'A', 'W') },
00147 
00148     { CODEC_ID_H264, MKTAG('a', 'v', 'c', '1') }, /* AVC-1/H.264 */
00149     { CODEC_ID_H264, MKTAG('a', 'i', '5', 'p') }, /* AVC-Intra  50M 720p24/30/60 */
00150     { CODEC_ID_H264, MKTAG('a', 'i', '5', 'q') }, /* AVC-Intra  50M 720p25/50 */
00151     { CODEC_ID_H264, MKTAG('a', 'i', '5', '2') }, /* AVC-Intra  50M 1080p25/50 */
00152     { CODEC_ID_H264, MKTAG('a', 'i', '5', '3') }, /* AVC-Intra  50M 1080p24/30/60 */
00153     { CODEC_ID_H264, MKTAG('a', 'i', '5', '5') }, /* AVC-Intra  50M 1080i50 */
00154     { CODEC_ID_H264, MKTAG('a', 'i', '5', '6') }, /* AVC-Intra  50M 1080i60 */
00155     { CODEC_ID_H264, MKTAG('a', 'i', '1', 'p') }, /* AVC-Intra 100M 720p24/30/60 */
00156     { CODEC_ID_H264, MKTAG('a', 'i', '1', 'q') }, /* AVC-Intra 100M 720p25/50 */
00157     { CODEC_ID_H264, MKTAG('a', 'i', '1', '2') }, /* AVC-Intra 100M 1080p25/50 */
00158     { CODEC_ID_H264, MKTAG('a', 'i', '1', '3') }, /* AVC-Intra 100M 1080p24/30/60 */
00159     { CODEC_ID_H264, MKTAG('a', 'i', '1', '5') }, /* AVC-Intra 100M 1080i50 */
00160     { CODEC_ID_H264, MKTAG('a', 'i', '1', '6') }, /* AVC-Intra 100M 1080i60 */
00161 
00162     { CODEC_ID_MPEG1VIDEO, MKTAG('m', '1', 'v', '1') }, /* Apple MPEG-1 Camcorder */
00163     { CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'e', 'g') }, /* MPEG */
00164     { CODEC_ID_MPEG1VIDEO, MKTAG('m', '1', 'v', ' ') },
00165     { CODEC_ID_MPEG2VIDEO, MKTAG('m', '2', 'v', '1') }, /* Apple MPEG-2 Camcorder */
00166     { CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '1') }, /* MPEG2 HDV 720p30 */
00167     { CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '2') }, /* MPEG2 HDV 1080i60 */
00168     { CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '3') }, /* MPEG2 HDV 1080i50 */
00169     { CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '4') }, /* MPEG2 HDV 720p24 */
00170     { CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '5') }, /* MPEG2 HDV 720p25 */
00171     { CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '6') }, /* MPEG2 HDV 1080p24 */
00172     { CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '7') }, /* MPEG2 HDV 1080p25 */
00173     { CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '8') }, /* MPEG2 HDV 1080p30 */
00174     { CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '9') }, /* MPEG2 HDV 720p60 JVC */
00175     { CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', 'a') }, /* MPEG2 HDV 720p50 */
00176     { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '5', 'n') }, /* MPEG2 IMX NTSC 525/60 50mb/s produced by FCP */
00177     { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '5', 'p') }, /* MPEG2 IMX PAL 625/50 50mb/s produced by FCP */
00178     { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '4', 'n') }, /* MPEG2 IMX NTSC 525/60 40mb/s produced by FCP */
00179     { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '4', 'p') }, /* MPEG2 IMX PAL 625/50 40mb/s produced by FCP */
00180     { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '3', 'n') }, /* MPEG2 IMX NTSC 525/60 30mb/s produced by FCP */
00181     { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '3', 'p') }, /* MPEG2 IMX PAL 625/50 30mb/s produced by FCP */
00182     { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', '4') }, /* XDCAM HD422 720p24 CBR */
00183     { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', '5') }, /* XDCAM HD422 720p25 CBR */
00184     { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', '9') }, /* XDCAM HD422 720p60 CBR */
00185     { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'a') }, /* XDCAM HD422 720p50 CBR */
00186     { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'b') }, /* XDCAM HD422 1080i60 CBR */
00187     { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'c') }, /* XDCAM HD422 1080i50 CBR */
00188     { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'd') }, /* XDCAM HD422 1080p24 CBR */
00189     { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'e') }, /* XDCAM HD422 1080p25 CBR */
00190     { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'f') }, /* XDCAM HD422 1080p30 CBR */
00191     { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '1') }, /* XDCAM EX 720p30 VBR */
00192     { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '2') }, /* XDCAM HD 1080i60 */
00193     { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '3') }, /* XDCAM HD 1080i50 VBR */
00194     { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '4') }, /* XDCAM EX 720p24 VBR */
00195     { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '5') }, /* XDCAM EX 720p25 VBR */
00196     { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '6') }, /* XDCAM HD 1080p24 VBR */
00197     { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '7') }, /* XDCAM HD 1080p25 VBR */
00198     { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '8') }, /* XDCAM HD 1080p30 VBR */
00199     { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '9') }, /* XDCAM EX 720p60 VBR */
00200     { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'a') }, /* XDCAM EX 720p50 VBR */
00201     { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'b') }, /* XDCAM EX 1080i60 VBR */
00202     { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'c') }, /* XDCAM EX 1080i50 VBR */
00203     { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'd') }, /* XDCAM EX 1080p24 VBR */
00204     { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'e') }, /* XDCAM EX 1080p25 VBR */
00205     { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'f') }, /* XDCAM EX 1080p30 VBR */
00206     { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'h', 'd') }, /* XDCAM HD 540p */
00207     { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'h', '2') }, /* XDCAM HD422 540p */
00208     { CODEC_ID_MPEG2VIDEO, MKTAG('A', 'V', 'm', 'p') }, /* AVID IMX PAL */
00209 
00210     { CODEC_ID_JPEG2000, MKTAG('m', 'j', 'p', '2') }, /* JPEG 2000 produced by FCP */
00211 
00212     { CODEC_ID_TARGA, MKTAG('t', 'g', 'a', ' ') }, /* Truevision Targa */
00213     { CODEC_ID_TIFF,  MKTAG('t', 'i', 'f', 'f') }, /* TIFF embedded in MOV */
00214     { CODEC_ID_GIF,   MKTAG('g', 'i', 'f', ' ') }, /* embedded gif files as frames (usually one "click to play movie" frame) */
00215     { CODEC_ID_PNG,   MKTAG('p', 'n', 'g', ' ') },
00216 
00217     { CODEC_ID_VC1, MKTAG('v', 'c', '-', '1') }, /* SMPTE RP 2025 */
00218     { CODEC_ID_CAVS, MKTAG('a', 'v', 's', '2') },
00219 
00220     { CODEC_ID_DIRAC, MKTAG('d', 'r', 'a', 'c') },
00221     { CODEC_ID_DNXHD, MKTAG('A', 'V', 'd', 'n') }, /* AVID DNxHD */
00222 //  { CODEC_ID_FLV1,  MKTAG('H', '2', '6', '3') }, /* Flash Media Server */
00223     { CODEC_ID_MSMPEG4V3, MKTAG('3', 'I', 'V', 'D') }, /* 3ivx DivX Doctor */
00224     { CODEC_ID_RAWVIDEO, MKTAG('A', 'V', '1', 'x') }, /* AVID 1:1x */
00225     { CODEC_ID_RAWVIDEO, MKTAG('A', 'V', 'u', 'p') },
00226     { CODEC_ID_SGI,   MKTAG('s', 'g', 'i', ' ') }, /* SGI  */
00227     { CODEC_ID_DPX,   MKTAG('d', 'p', 'x', ' ') }, /* DPX */
00228     { CODEC_ID_EXR,   MKTAG('e', 'x', 'r', ' ') }, /* OpenEXR */
00229 
00230     { CODEC_ID_PRORES, MKTAG('a', 'p', 'c', 'h') }, /* Apple ProRes 422 High Quality */
00231     { CODEC_ID_PRORES, MKTAG('a', 'p', 'c', 'n') }, /* Apple ProRes 422 Standard Definition */
00232     { CODEC_ID_PRORES, MKTAG('a', 'p', 'c', 's') }, /* Apple ProRes 422 LT */
00233     { CODEC_ID_PRORES, MKTAG('a', 'p', 'c', 'o') }, /* Apple ProRes 422 Proxy */
00234     { CODEC_ID_PRORES, MKTAG('a', 'p', '4', 'h') }, /* Apple ProRes 4444 */
00235     { CODEC_ID_FLIC,   MKTAG('f', 'l', 'i', 'c') },
00236 
00237     { CODEC_ID_NONE, 0 },
00238 };
00239 
00240 const AVCodecTag ff_codec_movaudio_tags[] = {
00241     { CODEC_ID_AAC,             MKTAG('m', 'p', '4', 'a') },
00242     { CODEC_ID_AC3,             MKTAG('a', 'c', '-', '3') }, /* ETSI TS 102 366 Annex F */
00243     { CODEC_ID_AC3,             MKTAG('s', 'a', 'c', '3') }, /* Nero Recode */
00244     { CODEC_ID_ADPCM_IMA_QT,    MKTAG('i', 'm', 'a', '4') },
00245     { CODEC_ID_ALAC,            MKTAG('a', 'l', 'a', 'c') },
00246     { CODEC_ID_AMR_NB,          MKTAG('s', 'a', 'm', 'r') }, /* AMR-NB 3gp */
00247     { CODEC_ID_AMR_WB,          MKTAG('s', 'a', 'w', 'b') }, /* AMR-WB 3gp */
00248     { CODEC_ID_DTS,             MKTAG('d', 't', 's', 'c') }, /* DTS formats prior to DTS-HD */
00249     { CODEC_ID_DTS,             MKTAG('d', 't', 's', 'h') }, /* DTS-HD audio formats */
00250     { CODEC_ID_DTS,             MKTAG('d', 't', 's', 'l') }, /* DTS-HD Lossless formats */
00251     { CODEC_ID_DTS,             MKTAG('D', 'T', 'S', ' ') }, /* non-standard */
00252     { CODEC_ID_EAC3,            MKTAG('e', 'c', '-', '3') }, /* ETSI TS 102 366 Annex F (only valid in ISOBMFF) */
00253     { CODEC_ID_DVAUDIO,         MKTAG('v', 'd', 'v', 'a') },
00254     { CODEC_ID_DVAUDIO,         MKTAG('d', 'v', 'c', 'a') },
00255     { CODEC_ID_GSM,             MKTAG('a', 'g', 's', 'm') },
00256     { CODEC_ID_MACE3,           MKTAG('M', 'A', 'C', '3') },
00257     { CODEC_ID_MACE6,           MKTAG('M', 'A', 'C', '6') },
00258     { CODEC_ID_MP1,             MKTAG('.', 'm', 'p', '1') },
00259     { CODEC_ID_MP2,             MKTAG('.', 'm', 'p', '2') },
00260     { CODEC_ID_MP3,             MKTAG('.', 'm', 'p', '3') },
00261     { CODEC_ID_MP3,             0x6D730055                },
00262     { CODEC_ID_NELLYMOSER,      MKTAG('n', 'm', 'o', 's') }, /* Flash Media Server */
00263     { CODEC_ID_PCM_ALAW,        MKTAG('a', 'l', 'a', 'w') },
00264     { CODEC_ID_PCM_F32BE,       MKTAG('f', 'l', '3', '2') },
00265     { CODEC_ID_PCM_F32LE,       MKTAG('f', 'l', '3', '2') },
00266     { CODEC_ID_PCM_F64BE,       MKTAG('f', 'l', '6', '4') },
00267     { CODEC_ID_PCM_F64LE,       MKTAG('f', 'l', '6', '4') },
00268     { CODEC_ID_PCM_MULAW,       MKTAG('u', 'l', 'a', 'w') },
00269     { CODEC_ID_PCM_S16BE,       MKTAG('t', 'w', 'o', 's') },
00270     { CODEC_ID_PCM_S16LE,       MKTAG('s', 'o', 'w', 't') },
00271     { CODEC_ID_PCM_S16LE,       MKTAG('l', 'p', 'c', 'm') },
00272     { CODEC_ID_PCM_S24BE,       MKTAG('i', 'n', '2', '4') },
00273     { CODEC_ID_PCM_S24LE,       MKTAG('i', 'n', '2', '4') },
00274     { CODEC_ID_PCM_S32BE,       MKTAG('i', 'n', '3', '2') },
00275     { CODEC_ID_PCM_S32LE,       MKTAG('i', 'n', '3', '2') },
00276     { CODEC_ID_PCM_S8,          MKTAG('s', 'o', 'w', 't') },
00277     { CODEC_ID_PCM_U8,          MKTAG('r', 'a', 'w', ' ') },
00278     { CODEC_ID_PCM_U8,          MKTAG('N', 'O', 'N', 'E') },
00279     { CODEC_ID_QCELP,           MKTAG('Q', 'c', 'l', 'p') },
00280     { CODEC_ID_QCELP,           MKTAG('Q', 'c', 'l', 'q') },
00281     { CODEC_ID_QCELP,           MKTAG('s', 'q', 'c', 'p') }, /* ISO Media fourcc */
00282     { CODEC_ID_QDM2,            MKTAG('Q', 'D', 'M', '2') },
00283     { CODEC_ID_QDMC,            MKTAG('Q', 'D', 'M', 'C') },
00284     { CODEC_ID_SPEEX,           MKTAG('s', 'p', 'e', 'x') }, /* Flash Media Server */
00285     { CODEC_ID_WMAV2,           MKTAG('W', 'M', 'A', '2') },
00286     { CODEC_ID_NONE, 0 },
00287 };
00288 
00289 const AVCodecTag ff_codec_movsubtitle_tags[] = {
00290     { CODEC_ID_MOV_TEXT, MKTAG('t', 'e', 'x', 't') },
00291     { CODEC_ID_MOV_TEXT, MKTAG('t', 'x', '3', 'g') },
00292     { CODEC_ID_EIA_608,  MKTAG('c', '6', '0', '8') },
00293     { CODEC_ID_NONE, 0 },
00294 };
00295 
00296 /* map numeric codes from mdhd atom to ISO 639 */
00297 /* cf. QTFileFormat.pdf p253, qtff.pdf p205 */
00298 /* http://developer.apple.com/documentation/mac/Text/Text-368.html */
00299 /* deprecated by putting the code as 3*5bit ascii */
00300 static const char mov_mdhd_language_map[][4] = {
00301     /* 0-9 */
00302     "eng", "fra", "ger", "ita", "dut", "sve", "spa", "dan", "por", "nor",
00303     "heb", "jpn", "ara", "fin", "gre", "ice", "mlt", "tur", "hr "/*scr*/, "chi"/*ace?*/,
00304     "urd", "hin", "tha", "kor", "lit", "pol", "hun", "est", "lav",    "",
00305     "fo ",    "", "rus", "chi",    "", "iri", "alb", "ron", "ces", "slk",
00306     "slv", "yid", "sr ", "mac", "bul", "ukr", "bel", "uzb", "kaz", "aze",
00307     /*?*/
00308     "aze", "arm", "geo", "mol", "kir", "tgk", "tuk", "mon",    "", "pus",
00309     "kur", "kas", "snd", "tib", "nep", "san", "mar", "ben", "asm", "guj",
00310     "pa ", "ori", "mal", "kan", "tam", "tel",    "", "bur", "khm", "lao",
00311     /*                   roman? arabic? */
00312     "vie", "ind", "tgl", "may", "may", "amh", "tir", "orm", "som", "swa",
00313     /*==rundi?*/
00314        "", "run",    "", "mlg", "epo",    "",    "",    "",    "",    "",
00315     /* 100 */
00316        "",    "",    "",    "",    "",    "",    "",    "",    "",    "",
00317        "",    "",    "",    "",    "",    "",    "",    "",    "",    "",
00318        "",    "",    "",    "",    "",    "",    "",    "", "wel", "baq",
00319     "cat", "lat", "que", "grn", "aym", "tat", "uig", "dzo", "jav"
00320 };
00321 
00322 int ff_mov_iso639_to_lang(const char lang[4], int mp4)
00323 {
00324     int i, code = 0;
00325 
00326     /* old way, only for QT? */
00327     for (i = 0; lang[0] && !mp4 && i < FF_ARRAY_ELEMS(mov_mdhd_language_map); i++) {
00328         if (!strcmp(lang, mov_mdhd_language_map[i]))
00329             return i;
00330     }
00331     /* XXX:can we do that in mov too? */
00332     if (!mp4)
00333         return -1;
00334     /* handle undefined as such */
00335     if (lang[0] == '\0')
00336         lang = "und";
00337     /* 5bit ascii */
00338     for (i = 0; i < 3; i++) {
00339         uint8_t c = lang[i];
00340         c -= 0x60;
00341         if (c > 0x1f)
00342             return -1;
00343         code <<= 5;
00344         code |= c;
00345     }
00346     return code;
00347 }
00348 
00349 int ff_mov_lang_to_iso639(unsigned code, char to[4])
00350 {
00351     int i;
00352     memset(to, 0, 4);
00353     /* is it the mangled iso code? */
00354     /* see http://www.geocities.com/xhelmboyx/quicktime/formats/mp4-layout.txt */
00355     if (code >= 0x400 && code != 0x7fff) {
00356         for (i = 2; i >= 0; i--) {
00357             to[i] = 0x60 + (code & 0x1f);
00358             code >>= 5;
00359         }
00360         return 1;
00361     }
00362     /* old fashion apple lang code */
00363     if (code >= FF_ARRAY_ELEMS(mov_mdhd_language_map))
00364         return 0;
00365     if (!mov_mdhd_language_map[code][0])
00366         return 0;
00367     memcpy(to, mov_mdhd_language_map[code], 4);
00368     return 1;
00369 }
00370 
00371 int ff_mp4_read_descr_len(AVIOContext *pb)
00372 {
00373     int len = 0;
00374     int count = 4;
00375     while (count--) {
00376         int c = avio_r8(pb);
00377         len = (len << 7) | (c & 0x7f);
00378         if (!(c & 0x80))
00379             break;
00380     }
00381     return len;
00382 }
00383 
00384 int ff_mp4_read_descr(AVFormatContext *fc, AVIOContext *pb, int *tag)
00385 {
00386     int len;
00387     *tag = avio_r8(pb);
00388     len = ff_mp4_read_descr_len(pb);
00389     av_dlog(fc, "MPEG4 description: tag=0x%02x len=%d\n", *tag, len);
00390     return len;
00391 }
00392 
00393 void ff_mp4_parse_es_descr(AVIOContext *pb, int *es_id)
00394 {
00395      int flags;
00396      if (es_id) *es_id = avio_rb16(pb);
00397      else                avio_rb16(pb);
00398      flags = avio_r8(pb);
00399      if (flags & 0x80) //streamDependenceFlag
00400          avio_rb16(pb);
00401      if (flags & 0x40) { //URL_Flag
00402          int len = avio_r8(pb);
00403          avio_skip(pb, len);
00404      }
00405      if (flags & 0x20) //OCRstreamFlag
00406          avio_rb16(pb);
00407 }
00408 
00409 static const AVCodecTag mp4_audio_types[] = {
00410     { CODEC_ID_MP3ON4, AOT_PS   }, /* old mp3on4 draft */
00411     { CODEC_ID_MP3ON4, AOT_L1   }, /* layer 1 */
00412     { CODEC_ID_MP3ON4, AOT_L2   }, /* layer 2 */
00413     { CODEC_ID_MP3ON4, AOT_L3   }, /* layer 3 */
00414     { CODEC_ID_MP4ALS, AOT_ALS  }, /* MPEG-4 ALS */
00415     { CODEC_ID_NONE,   AOT_NULL },
00416 };
00417 
00418 int ff_mp4_read_dec_config_descr(AVFormatContext *fc, AVStream *st, AVIOContext *pb)
00419 {
00420     int len, tag;
00421     int object_type_id = avio_r8(pb);
00422     avio_r8(pb); /* stream type */
00423     avio_rb24(pb); /* buffer size db */
00424     avio_rb32(pb); /* max bitrate */
00425     avio_rb32(pb); /* avg bitrate */
00426 
00427     st->codec->codec_id= ff_codec_get_id(ff_mp4_obj_type, object_type_id);
00428     av_dlog(fc, "esds object type id 0x%02x\n", object_type_id);
00429     len = ff_mp4_read_descr(fc, pb, &tag);
00430     if (tag == MP4DecSpecificDescrTag) {
00431         av_dlog(fc, "Specific MPEG4 header len=%d\n", len);
00432         if (!len || (uint64_t)len > (1<<30))
00433             return -1;
00434         av_free(st->codec->extradata);
00435         st->codec->extradata = av_mallocz(len + FF_INPUT_BUFFER_PADDING_SIZE);
00436         if (!st->codec->extradata)
00437             return AVERROR(ENOMEM);
00438         avio_read(pb, st->codec->extradata, len);
00439         st->codec->extradata_size = len;
00440         if (st->codec->codec_id == CODEC_ID_AAC) {
00441             MPEG4AudioConfig cfg;
00442             avpriv_mpeg4audio_get_config(&cfg, st->codec->extradata,
00443                                          st->codec->extradata_size * 8, 1);
00444             st->codec->channels = cfg.channels;
00445             if (cfg.object_type == 29 && cfg.sampling_index < 3) // old mp3on4
00446                 st->codec->sample_rate = avpriv_mpa_freq_tab[cfg.sampling_index];
00447             else if (cfg.ext_sample_rate)
00448                 st->codec->sample_rate = cfg.ext_sample_rate;
00449             else
00450                 st->codec->sample_rate = cfg.sample_rate;
00451             av_dlog(fc, "mp4a config channels %d obj %d ext obj %d "
00452                     "sample rate %d ext sample rate %d\n", st->codec->channels,
00453                     cfg.object_type, cfg.ext_object_type,
00454                     cfg.sample_rate, cfg.ext_sample_rate);
00455             if (!(st->codec->codec_id = ff_codec_get_id(mp4_audio_types,
00456                                                         cfg.object_type)))
00457                 st->codec->codec_id = CODEC_ID_AAC;
00458         }
00459     }
00460     return 0;
00461 }
00462 
00463 typedef struct MovChannelLayout {
00464     int64_t  channel_layout;
00465     uint32_t layout_tag;
00466 } MovChannelLayout;
00467 
00468 static const MovChannelLayout mov_channel_layout[] = {
00469     { AV_CH_LAYOUT_MONO,                         (100<<16) | 1}, // kCAFChannelLayoutTag_Mono
00470     { AV_CH_LAYOUT_STEREO,                       (101<<16) | 2}, // kCAFChannelLayoutTag_Stereo
00471     { AV_CH_LAYOUT_STEREO,                       (102<<16) | 2}, // kCAFChannelLayoutTag_StereoHeadphones
00472     { AV_CH_LAYOUT_2_1,                          (131<<16) | 3}, // kCAFChannelLayoutTag_ITU_2_1
00473     { AV_CH_LAYOUT_QUAD,                         (132<<16) | 4}, // kCAFChannelLayoutTag_ITU_2_2
00474     { AV_CH_LAYOUT_2_2,                          (132<<16) | 4}, // kCAFChannelLayoutTag_ITU_2_2
00475     { AV_CH_LAYOUT_QUAD,                         (108<<16) | 4}, // kCAFChannelLayoutTag_Quadraphonic
00476     { AV_CH_LAYOUT_SURROUND,                     (113<<16) | 3}, // kCAFChannelLayoutTag_MPEG_3_0_A
00477     { AV_CH_LAYOUT_4POINT0,                      (115<<16) | 4}, // kCAFChannelLayoutTag_MPEG_4_0_A
00478     { AV_CH_LAYOUT_5POINT0_BACK,                 (117<<16) | 5}, // kCAFChannelLayoutTag_MPEG_5_0_A
00479     { AV_CH_LAYOUT_5POINT0,                      (117<<16) | 5}, // kCAFChannelLayoutTag_MPEG_5_0_A
00480     { AV_CH_LAYOUT_5POINT1_BACK,                 (121<<16) | 6}, // kCAFChannelLayoutTag_MPEG_5_1_A
00481     { AV_CH_LAYOUT_5POINT1,                      (121<<16) | 6}, // kCAFChannelLayoutTag_MPEG_5_1_A
00482     { AV_CH_LAYOUT_7POINT1,                      (128<<16) | 8}, // kCAFChannelLayoutTag_MPEG_7_1_C
00483     { AV_CH_LAYOUT_7POINT1_WIDE,                 (126<<16) | 8}, // kCAFChannelLayoutTag_MPEG_7_1_A
00484     { AV_CH_LAYOUT_5POINT1_BACK|AV_CH_LAYOUT_STEREO_DOWNMIX, (130<<16) | 8}, // kCAFChannelLayoutTag_SMPTE_DTV
00485     { AV_CH_LAYOUT_STEREO|AV_CH_LOW_FREQUENCY,   (133<<16) | 3}, // kCAFChannelLayoutTag_DVD_4
00486     { AV_CH_LAYOUT_2_1|AV_CH_LOW_FREQUENCY,      (134<<16) | 4}, // kCAFChannelLayoutTag_DVD_5
00487     { AV_CH_LAYOUT_QUAD|AV_CH_LOW_FREQUENCY,     (135<<16) | 4}, // kCAFChannelLayoutTag_DVD_6
00488     { AV_CH_LAYOUT_2_2|AV_CH_LOW_FREQUENCY,      (135<<16) | 4}, // kCAFChannelLayoutTag_DVD_6
00489     { AV_CH_LAYOUT_SURROUND|AV_CH_LOW_FREQUENCY, (136<<16) | 4}, // kCAFChannelLayoutTag_DVD_10
00490     { AV_CH_LAYOUT_4POINT0|AV_CH_LOW_FREQUENCY,  (137<<16) | 5}, // kCAFChannelLayoutTag_DVD_11
00491     { 0, 0},
00492 };
00493 
00494 void ff_mov_read_chan(AVFormatContext *s, int64_t size, AVCodecContext *codec)
00495 {
00496     uint32_t layout_tag;
00497     AVIOContext *pb = s->pb;
00498     const MovChannelLayout *layouts = mov_channel_layout;
00499     layout_tag = avio_rb32(pb);
00500     size -= 4;
00501     if (layout_tag == 0) { // kCAFChannelLayoutTag_UseChannelDescriptions
00502         // Channel descriptions not implemented
00503         av_log_ask_for_sample(s, "Unimplemented container channel layout.\n");
00504         avio_skip(pb, size);
00505         return;
00506     }
00507     if (layout_tag == 0x10000) { // kCAFChannelLayoutTag_UseChannelBitmap
00508         codec->channel_layout = avio_rb32(pb);
00509         size -= 4;
00510         avio_skip(pb, size);
00511         return;
00512     }
00513     while (layouts->channel_layout) {
00514         if (layout_tag == layouts->layout_tag) {
00515             codec->channel_layout = layouts->channel_layout;
00516             break;
00517         }
00518         layouts++;
00519     }
00520     if (!codec->channel_layout)
00521         av_log(s, AV_LOG_WARNING, "Unknown container channel layout.\n");
00522     avio_skip(pb, size);
00523 }
00524 
00525 void ff_mov_write_chan(AVIOContext *pb, int64_t channel_layout)
00526 {
00527     const MovChannelLayout *layouts;
00528     uint32_t layout_tag = 0;
00529 
00530     for (layouts = mov_channel_layout; layouts->channel_layout; layouts++)
00531         if (channel_layout == layouts->channel_layout) {
00532             layout_tag = layouts->layout_tag;
00533             break;
00534         }
00535 
00536     if (layout_tag) {
00537         avio_wb32(pb, layout_tag); // mChannelLayoutTag
00538         avio_wb32(pb, 0);          // mChannelBitmap
00539     } else {
00540         avio_wb32(pb, 0x10000);    // kCAFChannelLayoutTag_UseChannelBitmap
00541         avio_wb32(pb, channel_layout);
00542     }
00543     avio_wb32(pb, 0);              // mNumberChannelDescriptions
00544 }
00545