ffmpeg / libavformat / isom.c @ b9dab113
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/*
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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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//#define DEBUG
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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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/* 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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{ CODEC_ID_MOV_TEXT , 0x08 },
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{ CODEC_ID_MPEG4 , 0x20 },
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{ CODEC_ID_H264 , 0x21 },
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{ CODEC_ID_AAC , 0x40 },
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{ CODEC_ID_MP4ALS , 0x40 }, /* 14496-3 ALS */
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{ CODEC_ID_MPEG2VIDEO, 0x61 }, /* MPEG2 Main */
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{ CODEC_ID_MPEG2VIDEO, 0x60 }, /* MPEG2 Simple */
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{ CODEC_ID_MPEG2VIDEO, 0x62 }, /* MPEG2 SNR */
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{ CODEC_ID_MPEG2VIDEO, 0x63 }, /* MPEG2 Spatial */
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{ CODEC_ID_MPEG2VIDEO, 0x64 }, /* MPEG2 High */
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{ CODEC_ID_MPEG2VIDEO, 0x65 }, /* MPEG2 422 */
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{ CODEC_ID_AAC , 0x66 }, /* MPEG2 AAC Main */
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{ CODEC_ID_AAC , 0x67 }, /* MPEG2 AAC Low */
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{ CODEC_ID_AAC , 0x68 }, /* MPEG2 AAC SSR */
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{ CODEC_ID_MP3 , 0x69 }, /* 13818-3 */
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{ CODEC_ID_MP2 , 0x69 }, /* 11172-3 */
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{ CODEC_ID_MPEG1VIDEO, 0x6A }, /* 11172-2 */
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{ CODEC_ID_MP3 , 0x6B }, /* 11172-3 */
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{ CODEC_ID_MJPEG , 0x6C }, /* 10918-1 */
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{ CODEC_ID_PNG , 0x6D },
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{ CODEC_ID_JPEG2000 , 0x6E }, /* 15444-1 */
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{ CODEC_ID_VC1 , 0xA3 },
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{ CODEC_ID_DIRAC , 0xA4 },
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{ CODEC_ID_AC3 , 0xA5 },
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{ CODEC_ID_VORBIS , 0xDD }, /* non standard, gpac uses it */
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{ CODEC_ID_DVD_SUBTITLE, 0xE0 }, /* non standard, see unsupported-embedded-subs-2.mp4 */
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{ CODEC_ID_QCELP , 0xE1 },
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{ CODEC_ID_NONE , 0 },
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}; |
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const AVCodecTag codec_movvideo_tags[] = {
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/* { CODEC_ID_, MKTAG('I', 'V', '5', '0') }, *//* Indeo 5.0 */ |
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{ CODEC_ID_RAWVIDEO, MKTAG('r', 'a', 'w', ' ') }, /* Uncompressed RGB */
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{ CODEC_ID_RAWVIDEO, MKTAG('y', 'u', 'v', '2') }, /* Uncompressed YUV422 */
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{ CODEC_ID_RAWVIDEO, MKTAG('A', 'V', 'U', 'I') }, /* YUV with alpha-channel (AVID Uncompressed) */
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{ CODEC_ID_RAWVIDEO, MKTAG('2', 'v', 'u', 'y') }, /* UNCOMPRESSED 8BIT 4:2:2 */
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{ CODEC_ID_RAWVIDEO, MKTAG('y', 'u', 'v', 's') }, /* same as 2vuy but byte swapped */
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{ CODEC_ID_RAWVIDEO, MKTAG('L', '5', '5', '5') },
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{ CODEC_ID_RAWVIDEO, MKTAG('L', '5', '6', '5') },
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{ CODEC_ID_RAWVIDEO, MKTAG('B', '5', '6', '5') },
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{ CODEC_ID_RAWVIDEO, MKTAG('2', '4', 'B', 'G') },
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{ CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 'A') },
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{ CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 'A') },
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{ CODEC_ID_RAWVIDEO, MKTAG('A', 'B', 'G', 'R') },
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{ CODEC_ID_RAWVIDEO, MKTAG('b', '1', '6', 'g') },
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{ CODEC_ID_RAWVIDEO, MKTAG('b', '4', '8', 'r') },
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{ CODEC_ID_R10K, MKTAG('R', '1', '0', 'k') }, /* UNCOMPRESSED 10BIT RGB */
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{ CODEC_ID_R210, MKTAG('r', '2', '1', '0') }, /* UNCOMPRESSED 10BIT RGB */
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{ CODEC_ID_V210, MKTAG('v', '2', '1', '0') }, /* UNCOMPRESSED 10BIT 4:2:2 */
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{ CODEC_ID_MJPEG, MKTAG('j', 'p', 'e', 'g') }, /* PhotoJPEG */
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{ CODEC_ID_MJPEG, MKTAG('m', 'j', 'p', 'a') }, /* Motion-JPEG (format A) */
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{ CODEC_ID_MJPEG, MKTAG('A', 'V', 'D', 'J') }, /* MJPEG with alpha-channel (AVID JFIF meridien compressed) */
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/* { CODEC_ID_MJPEG, MKTAG('A', 'V', 'R', 'n') }, *//* MJPEG with alpha-channel (AVID ABVB/Truevision NuVista) */ |
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{ CODEC_ID_MJPEG, MKTAG('d', 'm', 'b', '1') }, /* Motion JPEG OpenDML */
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{ CODEC_ID_MJPEGB, MKTAG('m', 'j', 'p', 'b') }, /* Motion-JPEG (format B) */
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{ CODEC_ID_SVQ1, MKTAG('S', 'V', 'Q', '1') }, /* Sorenson Video v1 */
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{ CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', '1') }, /* Sorenson Video v1 */
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{ CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', 'i') }, /* Sorenson Video v1 (from QT specs)*/
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{ CODEC_ID_SVQ3, MKTAG('S', 'V', 'Q', '3') }, /* Sorenson Video v3 */
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{ CODEC_ID_MPEG4, MKTAG('m', 'p', '4', 'v') },
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{ CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', 'X') }, /* OpenDiVX *//* sample files at http://heroinewarrior.com/xmovie.php3 use this tag */
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{ CODEC_ID_MPEG4, MKTAG('X', 'V', 'I', 'D') },
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{ CODEC_ID_MPEG4, MKTAG('3', 'I', 'V', '2') }, /* experimental: 3IVX files before ivx D4 4.5.1 */
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{ CODEC_ID_H263, MKTAG('h', '2', '6', '3') }, /* H263 */
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{ CODEC_ID_H263, MKTAG('s', '2', '6', '3') }, /* H263 ?? works */
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{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', 'p') }, /* DV PAL */
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{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', ' ') }, /* DV NTSC */
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{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'p', 'p') }, /* DVCPRO PAL produced by FCP */
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{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', '5', 'p') }, /* DVCPRO50 PAL produced by FCP */
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{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', '5', 'n') }, /* DVCPRO50 NTSC produced by FCP */
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{ CODEC_ID_DVVIDEO, MKTAG('A', 'V', 'd', 'v') }, /* AVID DV */
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{ CODEC_ID_DVVIDEO, MKTAG('A', 'V', 'd', '1') }, /* AVID DV100 */
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{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', 'q') }, /* DVCPRO HD 720p50 */
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{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', 'p') }, /* DVCPRO HD 720p60 */
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{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '1') },
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{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '2') },
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{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '4') },
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{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '5') }, /* DVCPRO HD 50i produced by FCP */
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{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '6') }, /* DVCPRO HD 60i produced by FCP */
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{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '3') }, /* DVCPRO HD 30p produced by FCP */
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{ CODEC_ID_VP3, MKTAG('V', 'P', '3', '1') }, /* On2 VP3 */
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{ CODEC_ID_RPZA, MKTAG('r', 'p', 'z', 'a') }, /* Apple Video (RPZA) */
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{ CODEC_ID_CINEPAK, MKTAG('c', 'v', 'i', 'd') }, /* Cinepak */
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{ CODEC_ID_8BPS, MKTAG('8', 'B', 'P', 'S') }, /* Planar RGB (8BPS) */
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{ CODEC_ID_SMC, MKTAG('s', 'm', 'c', ' ') }, /* Apple Graphics (SMC) */
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{ CODEC_ID_QTRLE, MKTAG('r', 'l', 'e', ' ') }, /* Apple Animation (RLE) */
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{ CODEC_ID_MSRLE, MKTAG('W', 'R', 'L', 'E') },
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{ CODEC_ID_QDRAW, MKTAG('q', 'd', 'r', 'w') }, /* QuickDraw */
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{ CODEC_ID_RAWVIDEO, MKTAG('W', 'R', 'A', 'W') },
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{ CODEC_ID_H264, MKTAG('a', 'v', 'c', '1') }, /* AVC-1/H.264 */
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{ CODEC_ID_H264, MKTAG('a', 'i', '5', '5') }, /* Flip4Mac AVC Intra 50 */
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{ CODEC_ID_H264, MKTAG('a', 'i', '1', '5') }, /* Flip4Mac AVC Intra 100 */
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{ CODEC_ID_MPEG1VIDEO, MKTAG('m', '1', 'v', '1') }, /* Apple MPEG-1 Camcorder */
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{ CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'e', 'g') }, /* MPEG */
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{ CODEC_ID_MPEG2VIDEO, MKTAG('m', '2', 'v', '1') }, /* Apple MPEG-2 Camcorder */
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{ CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '1') }, /* MPEG2 HDV 720p30 */
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{ CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '2') }, /* MPEG2 HDV 1080i60 */
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{ CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '3') }, /* MPEG2 HDV 1080i50 */
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{ CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '5') }, /* MPEG2 HDV 720p25 */
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{ CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '6') }, /* MPEG2 HDV 1080p24 */
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{ CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '7') }, /* MPEG2 HDV 1080p25 */
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{ CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '8') }, /* MPEG2 HDV 1080p30 */
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{ CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '5', 'n') }, /* MPEG2 IMX NTSC 525/60 50mb/s produced by FCP */
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{ CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '5', 'p') }, /* MPEG2 IMX PAL 625/50 50mb/s produced by FCP */
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{ CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '4', 'n') }, /* MPEG2 IMX NTSC 525/60 40mb/s produced by FCP */
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{ CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '4', 'p') }, /* MPEG2 IMX PAL 625/50 40mb/s produced by FCP */
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{ CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '3', 'n') }, /* MPEG2 IMX NTSC 525/60 30mb/s produced by FCP */
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{ CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '3', 'p') }, /* MPEG2 IMX PAL 625/50 30mb/s produced by FCP */
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{ CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', '4') }, /* XDCAM HD422 720p24 CBR */
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{ CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', '9') }, /* XDCAM HD422 720p60 CBR */
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{ CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'a') }, /* XDCAM HD422 720p50 CBR */
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{ CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'b') }, /* XDCAM HD422 1080i60 CBR */
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{ CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'c') }, /* XDCAM HD422 1080i50 CBR */
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{ CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'd') }, /* XDCAM HD422 1080p24 CBR */
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{ CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'e') }, /* XDCAM HD422 1080p25 CBR */
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{ CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'f') }, /* XDCAM HD422 1080p30 CBR */
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{ CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '1') }, /* XDCAM EX 720p30 VBR */
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{ CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '2') }, /* XDCAM HD 1080i60 */
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{ CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '3') }, /* XDCAM HD 1080i50 VBR */
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{ CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '4') }, /* XDCAM EX 720p24 VBR */
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{ CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '5') }, /* XDCAM EX 720p25 VBR */
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{ CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '6') }, /* XDCAM HD 1080p24 VBR */
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{ CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '7') }, /* XDCAM HD 1080p25 VBR */
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{ CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '8') }, /* XDCAM HD 1080p30 VBR */
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{ CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '9') }, /* XDCAM EX 720p60 VBR */
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{ CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'a') }, /* XDCAM EX 720p50 VBR */
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{ CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'b') }, /* XDCAM EX 1080i60 VBR */
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{ CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'c') }, /* XDCAM EX 1080i50 VBR */
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{ CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'd') }, /* XDCAM EX 1080p24 VBR */
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{ CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'e') }, /* XDCAM EX 1080p25 VBR */
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{ CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'f') }, /* XDCAM EX 1080p30 VBR */
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{ CODEC_ID_MPEG2VIDEO, MKTAG('A', 'V', 'm', 'p') }, /* AVID IMX PAL */
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{ CODEC_ID_JPEG2000, MKTAG('m', 'j', 'p', '2') }, /* JPEG 2000 produced by FCP */
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{ CODEC_ID_TARGA, MKTAG('t', 'g', 'a', ' ') }, /* Truevision Targa */
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{ CODEC_ID_TIFF, MKTAG('t', 'i', 'f', 'f') }, /* TIFF embedded in MOV */
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{ CODEC_ID_GIF, MKTAG('g', 'i', 'f', ' ') }, /* embedded gif files as frames (usually one "click to play movie" frame) */
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{ CODEC_ID_PNG, MKTAG('p', 'n', 'g', ' ') },
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{ CODEC_ID_VC1, MKTAG('v', 'c', '-', '1') }, /* SMPTE RP 2025 */
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{ CODEC_ID_CAVS, MKTAG('a', 'v', 's', '2') },
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{ CODEC_ID_DIRAC, MKTAG('d', 'r', 'a', 'c') },
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{ CODEC_ID_DNXHD, MKTAG('A', 'V', 'd', 'n') }, /* AVID DNxHD */
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{ CODEC_ID_RAWVIDEO, MKTAG('A', 'V', '1', 'x') }, /* AVID 1:1x */
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{ CODEC_ID_RAWVIDEO, MKTAG('A', 'V', 'u', 'p') },
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{ CODEC_ID_SGI, MKTAG('s', 'g', 'i', ' ') }, /* SGI */
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{ CODEC_ID_DPX, MKTAG('d', 'p', 'x', ' ') }, /* DPX */
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{ CODEC_ID_PRORES, MKTAG('a', 'p', 'c', 'h') }, /* Apple ProRes 422 High Quality */
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{ CODEC_ID_PRORES, MKTAG('a', 'p', 'c', 'n') }, /* Apple ProRes 422 Standard Definition */
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{ CODEC_ID_PRORES, MKTAG('a', 'p', 'c', 's') }, /* Apple ProRes 422 LT */
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{ CODEC_ID_PRORES, MKTAG('a', 'p', 'c', 'o') }, /* Apple ProRes 422 Proxy */
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{ CODEC_ID_PRORES, MKTAG('a', 'p', '4', 'h') }, /* Apple ProRes 4444 */
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{ CODEC_ID_NONE, 0 },
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}; |
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const AVCodecTag codec_movaudio_tags[] = {
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{ CODEC_ID_PCM_S32BE, MKTAG('i', 'n', '3', '2') },
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{ CODEC_ID_PCM_S32LE, MKTAG('i', 'n', '3', '2') },
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{ CODEC_ID_PCM_S24BE, MKTAG('i', 'n', '2', '4') },
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{ CODEC_ID_PCM_S24LE, MKTAG('i', 'n', '2', '4') },
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{ CODEC_ID_PCM_S16BE, MKTAG('t', 'w', 'o', 's') }, /* 16 bits */
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{ CODEC_ID_PCM_S16LE, MKTAG('s', 'o', 'w', 't') }, /* */
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{ CODEC_ID_PCM_S16LE, MKTAG('l', 'p', 'c', 'm') },
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{ CODEC_ID_PCM_F32BE, MKTAG('f', 'l', '3', '2') },
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{ CODEC_ID_PCM_F32LE, MKTAG('f', 'l', '3', '2') },
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{ CODEC_ID_PCM_F64BE, MKTAG('f', 'l', '6', '4') },
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{ CODEC_ID_PCM_F64LE, MKTAG('f', 'l', '6', '4') },
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{ CODEC_ID_PCM_S8, MKTAG('s', 'o', 'w', 't') },
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{ CODEC_ID_PCM_U8, MKTAG('r', 'a', 'w', ' ') }, /* 8 bits unsigned */
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{ CODEC_ID_PCM_U8, MKTAG('N', 'O', 'N', 'E') }, /* uncompressed */
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{ CODEC_ID_PCM_MULAW, MKTAG('u', 'l', 'a', 'w') }, /* */
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{ CODEC_ID_PCM_ALAW, MKTAG('a', 'l', 'a', 'w') }, /* */
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{ CODEC_ID_ADPCM_IMA_QT, MKTAG('i', 'm', 'a', '4') }, /* IMA-4 ADPCM */
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{ CODEC_ID_MACE3, MKTAG('M', 'A', 'C', '3') }, /* Macintosh Audio Compression and Expansion 3:1 */
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{ CODEC_ID_MACE6, MKTAG('M', 'A', 'C', '6') }, /* Macintosh Audio Compression and Expansion 6:1 */
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{ CODEC_ID_MP1, MKTAG('.', 'm', 'p', '1') }, /* MPEG layer 1 */
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{ CODEC_ID_MP2, MKTAG('.', 'm', 'p', '2') }, /* MPEG layer 2 */
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{ CODEC_ID_MP3, MKTAG('.', 'm', 'p', '3') }, /* MPEG layer 3 */ /* sample files at http://www.3ivx.com/showcase.html use this tag */
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{ CODEC_ID_MP3, 0x6D730055 }, /* MPEG layer 3 */
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/* { CODEC_ID_OGG_VORBIS, MKTAG('O', 'g', 'g', 'S') }, *//* sample files at http://heroinewarrior.com/xmovie.php3 use this tag */ |
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{ CODEC_ID_AAC, MKTAG('m', 'p', '4', 'a') }, /* MPEG-4 AAC */
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{ CODEC_ID_AC3, MKTAG('a', 'c', '-', '3') }, /* ETSI TS 102 366 Annex F */
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{ CODEC_ID_AC3, MKTAG('s', 'a', 'c', '3') }, /* Nero Recode */
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|
| 242 |
{ CODEC_ID_AMR_NB, MKTAG('s', 'a', 'm', 'r') }, /* AMR-NB 3gp */
|
| 243 |
{ CODEC_ID_AMR_WB, MKTAG('s', 'a', 'w', 'b') }, /* AMR-WB 3gp */
|
| 244 |
|
| 245 |
{ CODEC_ID_GSM, MKTAG('a', 'g', 's', 'm') },
|
| 246 |
{ CODEC_ID_ALAC, MKTAG('a', 'l', 'a', 'c') }, /* Apple Lossless */
|
| 247 |
|
| 248 |
{ CODEC_ID_QCELP, MKTAG('Q','c','l','p') },
|
| 249 |
{ CODEC_ID_QCELP, MKTAG('Q','c','l','q') },
|
| 250 |
{ CODEC_ID_QCELP, MKTAG('s','q','c','p') }, /* ISO Media fourcc */
|
| 251 |
|
| 252 |
{ CODEC_ID_QDM2, MKTAG('Q', 'D', 'M', '2') }, /* QDM2 */
|
| 253 |
|
| 254 |
{ CODEC_ID_DVAUDIO, MKTAG('v', 'd', 'v', 'a') },
|
| 255 |
{ CODEC_ID_DVAUDIO, MKTAG('d', 'v', 'c', 'a') },
|
| 256 |
|
| 257 |
{ CODEC_ID_WMAV2, MKTAG('W', 'M', 'A', '2') },
|
| 258 |
|
| 259 |
{ CODEC_ID_NONE, 0 },
|
| 260 |
}; |
| 261 |
|
| 262 |
const AVCodecTag ff_codec_movsubtitle_tags[] = {
|
| 263 |
{ CODEC_ID_MOV_TEXT, MKTAG('t', 'e', 'x', 't') },
|
| 264 |
{ CODEC_ID_MOV_TEXT, MKTAG('t', 'x', '3', 'g') },
|
| 265 |
{ CODEC_ID_NONE, 0 },
|
| 266 |
}; |
| 267 |
|
| 268 |
/* map numeric codes from mdhd atom to ISO 639 */
|
| 269 |
/* cf. QTFileFormat.pdf p253, qtff.pdf p205 */
|
| 270 |
/* http://developer.apple.com/documentation/mac/Text/Text-368.html */
|
| 271 |
/* deprecated by putting the code as 3*5bit ascii */
|
| 272 |
static const char mov_mdhd_language_map[][4] = { |
| 273 |
/* 0-9 */
|
| 274 |
"eng", "fra", "ger", "ita", "dut", "sve", "spa", "dan", "por", "nor", |
| 275 |
"heb", "jpn", "ara", "fin", "gre", "ice", "mlt", "tur", "hr "/*scr*/, "chi"/*ace?*/, |
| 276 |
"urd", "hin", "tha", "kor", "lit", "pol", "hun", "est", "lav", "", |
| 277 |
"fo ", "", "rus", "chi", "", "iri", "alb", "ron", "ces", "slk", |
| 278 |
"slv", "yid", "sr ", "mac", "bul", "ukr", "bel", "uzb", "kaz", "aze", |
| 279 |
/*?*/
|
| 280 |
"aze", "arm", "geo", "mol", "kir", "tgk", "tuk", "mon", "", "pus", |
| 281 |
"kur", "kas", "snd", "tib", "nep", "san", "mar", "ben", "asm", "guj", |
| 282 |
"pa ", "ori", "mal", "kan", "tam", "tel", "", "bur", "khm", "lao", |
| 283 |
/* roman? arabic? */
|
| 284 |
"vie", "ind", "tgl", "may", "may", "amh", "tir", "orm", "som", "swa", |
| 285 |
/*==rundi?*/
|
| 286 |
"", "run", "", "mlg", "epo", "", "", "", "", "", |
| 287 |
/* 100 */
|
| 288 |
"", "", "", "", "", "", "", "", "", "", |
| 289 |
"", "", "", "", "", "", "", "", "", "", |
| 290 |
"", "", "", "", "", "", "", "", "wel", "baq", |
| 291 |
"cat", "lat", "que", "grn", "aym", "tat", "uig", "dzo", "jav" |
| 292 |
}; |
| 293 |
|
| 294 |
int ff_mov_iso639_to_lang(const char lang[4], int mp4) |
| 295 |
{
|
| 296 |
int i, code = 0; |
| 297 |
|
| 298 |
/* old way, only for QT? */
|
| 299 |
for (i = 0; lang[0] && !mp4 && i < FF_ARRAY_ELEMS(mov_mdhd_language_map); i++) { |
| 300 |
if (!strcmp(lang, mov_mdhd_language_map[i]))
|
| 301 |
return i;
|
| 302 |
} |
| 303 |
/* XXX:can we do that in mov too? */
|
| 304 |
if (!mp4)
|
| 305 |
return -1; |
| 306 |
/* handle undefined as such */
|
| 307 |
if (lang[0] == '\0') |
| 308 |
lang = "und";
|
| 309 |
/* 5bit ascii */
|
| 310 |
for (i = 0; i < 3; i++) { |
| 311 |
uint8_t c = lang[i]; |
| 312 |
c -= 0x60;
|
| 313 |
if (c > 0x1f) |
| 314 |
return -1; |
| 315 |
code <<= 5;
|
| 316 |
code |= c; |
| 317 |
} |
| 318 |
return code;
|
| 319 |
} |
| 320 |
|
| 321 |
int ff_mov_lang_to_iso639(unsigned code, char to[4]) |
| 322 |
{
|
| 323 |
int i;
|
| 324 |
memset(to, 0, 4); |
| 325 |
/* is it the mangled iso code? */
|
| 326 |
/* see http://www.geocities.com/xhelmboyx/quicktime/formats/mp4-layout.txt */
|
| 327 |
if (code > 138) { |
| 328 |
for (i = 2; i >= 0; i--) { |
| 329 |
to[i] = 0x60 + (code & 0x1f); |
| 330 |
code >>= 5;
|
| 331 |
} |
| 332 |
return 1; |
| 333 |
} |
| 334 |
/* old fashion apple lang code */
|
| 335 |
if (code >= FF_ARRAY_ELEMS(mov_mdhd_language_map))
|
| 336 |
return 0; |
| 337 |
if (!mov_mdhd_language_map[code][0]) |
| 338 |
return 0; |
| 339 |
memcpy(to, mov_mdhd_language_map[code], 4);
|
| 340 |
return 1; |
| 341 |
} |
| 342 |
|
| 343 |
int ff_mp4_read_descr_len(ByteIOContext *pb)
|
| 344 |
{
|
| 345 |
int len = 0; |
| 346 |
int count = 4; |
| 347 |
while (count--) {
|
| 348 |
int c = get_byte(pb);
|
| 349 |
len = (len << 7) | (c & 0x7f); |
| 350 |
if (!(c & 0x80)) |
| 351 |
break;
|
| 352 |
} |
| 353 |
return len;
|
| 354 |
} |
| 355 |
|
| 356 |
int ff_mp4_read_descr(AVFormatContext *fc, ByteIOContext *pb, int *tag) |
| 357 |
{
|
| 358 |
int len;
|
| 359 |
*tag = get_byte(pb); |
| 360 |
len = ff_mp4_read_descr_len(pb); |
| 361 |
av_dlog(fc, "MPEG4 description: tag=0x%02x len=%d\n", *tag, len);
|
| 362 |
return len;
|
| 363 |
} |
| 364 |
|
| 365 |
static const AVCodecTag mp4_audio_types[] = { |
| 366 |
{ CODEC_ID_MP3ON4, AOT_PS }, /* old mp3on4 draft */
|
| 367 |
{ CODEC_ID_MP3ON4, AOT_L1 }, /* layer 1 */
|
| 368 |
{ CODEC_ID_MP3ON4, AOT_L2 }, /* layer 2 */
|
| 369 |
{ CODEC_ID_MP3ON4, AOT_L3 }, /* layer 3 */
|
| 370 |
{ CODEC_ID_MP4ALS, AOT_ALS }, /* MPEG-4 ALS */
|
| 371 |
{ CODEC_ID_NONE, AOT_NULL },
|
| 372 |
}; |
| 373 |
|
| 374 |
int ff_mp4_read_dec_config_descr(AVFormatContext *fc, AVStream *st, ByteIOContext *pb)
|
| 375 |
{
|
| 376 |
int len, tag;
|
| 377 |
int object_type_id = get_byte(pb);
|
| 378 |
get_byte(pb); /* stream type */
|
| 379 |
get_be24(pb); /* buffer size db */
|
| 380 |
get_be32(pb); /* max bitrate */
|
| 381 |
get_be32(pb); /* avg bitrate */
|
| 382 |
|
| 383 |
st->codec->codec_id= ff_codec_get_id(ff_mp4_obj_type, object_type_id); |
| 384 |
av_dlog(fc, "esds object type id 0x%02x\n", object_type_id);
|
| 385 |
len = ff_mp4_read_descr(fc, pb, &tag); |
| 386 |
if (tag == MP4DecSpecificDescrTag) {
|
| 387 |
av_dlog(fc, "Specific MPEG4 header len=%d\n", len);
|
| 388 |
if((uint64_t)len > (1<<30)) |
| 389 |
return -1; |
| 390 |
av_free(st->codec->extradata); |
| 391 |
st->codec->extradata = av_mallocz(len + FF_INPUT_BUFFER_PADDING_SIZE); |
| 392 |
if (!st->codec->extradata)
|
| 393 |
return AVERROR(ENOMEM);
|
| 394 |
get_buffer(pb, st->codec->extradata, len); |
| 395 |
st->codec->extradata_size = len; |
| 396 |
if (st->codec->codec_id == CODEC_ID_AAC) {
|
| 397 |
MPEG4AudioConfig cfg; |
| 398 |
ff_mpeg4audio_get_config(&cfg, st->codec->extradata, |
| 399 |
st->codec->extradata_size); |
| 400 |
st->codec->channels = cfg.channels; |
| 401 |
if (cfg.object_type == 29 && cfg.sampling_index < 3) // old mp3on4 |
| 402 |
st->codec->sample_rate = ff_mpa_freq_tab[cfg.sampling_index]; |
| 403 |
else if (cfg.ext_sample_rate) |
| 404 |
st->codec->sample_rate = cfg.ext_sample_rate; |
| 405 |
else
|
| 406 |
st->codec->sample_rate = cfg.sample_rate; |
| 407 |
av_dlog(fc, "mp4a config channels %d obj %d ext obj %d "
|
| 408 |
"sample rate %d ext sample rate %d\n", st->codec->channels,
|
| 409 |
cfg.object_type, cfg.ext_object_type, |
| 410 |
cfg.sample_rate, cfg.ext_sample_rate); |
| 411 |
if (!(st->codec->codec_id = ff_codec_get_id(mp4_audio_types,
|
| 412 |
cfg.object_type))) |
| 413 |
st->codec->codec_id = CODEC_ID_AAC; |
| 414 |
} |
| 415 |
} |
| 416 |
return 0; |
| 417 |
} |