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ffmpeg / libavformat / isom.c @ d25d1d06

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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_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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    { CODEC_ID_AMR_NB, MKTAG('s', 'a', 'm', 'r') }, /* AMR-NB 3gp */
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    { CODEC_ID_AMR_WB, MKTAG('s', 'a', 'w', 'b') }, /* AMR-WB 3gp */
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    { CODEC_ID_GSM,  MKTAG('a', 'g', 's', 'm') },
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    { CODEC_ID_ALAC, MKTAG('a', 'l', 'a', 'c') }, /* Apple Lossless */
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    { CODEC_ID_QCELP, MKTAG('Q','c','l','p') },
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    { CODEC_ID_QCELP, MKTAG('Q','c','l','q') },
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    { CODEC_ID_QCELP, MKTAG('s','q','c','p') }, /* ISO Media fourcc */
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    { CODEC_ID_QDM2, MKTAG('Q', 'D', 'M', '2') }, /* QDM2 */
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    { CODEC_ID_DVAUDIO, MKTAG('v', 'd', 'v', 'a') },
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    { CODEC_ID_DVAUDIO, MKTAG('d', 'v', 'c', 'a') },
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    { CODEC_ID_WMAV2, MKTAG('W', 'M', 'A', '2') },
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    { CODEC_ID_NONE, 0 },
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};
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const AVCodecTag ff_codec_movsubtitle_tags[] = {
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    { CODEC_ID_MOV_TEXT, MKTAG('t', 'e', 'x', 't') },
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    { CODEC_ID_MOV_TEXT, MKTAG('t', 'x', '3', 'g') },
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    { CODEC_ID_NONE, 0 },
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};
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/* map numeric codes from mdhd atom to ISO 639 */
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/* cf. QTFileFormat.pdf p253, qtff.pdf p205 */
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/* http://developer.apple.com/documentation/mac/Text/Text-368.html */
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/* deprecated by putting the code as 3*5bit ascii */
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static const char mov_mdhd_language_map[][4] = {
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    /* 0-9 */
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    "eng", "fra", "ger", "ita", "dut", "sve", "spa", "dan", "por", "nor",
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    "heb", "jpn", "ara", "fin", "gre", "ice", "mlt", "tur", "hr "/*scr*/, "chi"/*ace?*/,
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    "urd", "hin", "tha", "kor", "lit", "pol", "hun", "est", "lav",    "",
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    "fo ",    "", "rus", "chi",    "", "iri", "alb", "ron", "ces", "slk",
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    "slv", "yid", "sr ", "mac", "bul", "ukr", "bel", "uzb", "kaz", "aze",
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    /*?*/
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    "aze", "arm", "geo", "mol", "kir", "tgk", "tuk", "mon",    "", "pus",
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    "kur", "kas", "snd", "tib", "nep", "san", "mar", "ben", "asm", "guj",
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    "pa ", "ori", "mal", "kan", "tam", "tel",    "", "bur", "khm", "lao",
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    /*                   roman? arabic? */
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    "vie", "ind", "tgl", "may", "may", "amh", "tir", "orm", "som", "swa",
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    /*==rundi?*/
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       "", "run",    "", "mlg", "epo",    "",    "",    "",    "",    "",
281
    /* 100 */
282
       "",    "",    "",    "",    "",    "",    "",    "",    "",    "",
283
       "",    "",    "",    "",    "",    "",    "",    "",    "",    "",
284
       "",    "",    "",    "",    "",    "",    "",    "", "wel", "baq",
285
    "cat", "lat", "que", "grn", "aym", "tat", "uig", "dzo", "jav"
286
};
287

    
288
int ff_mov_iso639_to_lang(const char lang[4], int mp4)
289
{
290
    int i, code = 0;
291

    
292
    /* old way, only for QT? */
293
    for (i = 0; lang[0] && !mp4 && i < FF_ARRAY_ELEMS(mov_mdhd_language_map); i++) {
294
        if (!strcmp(lang, mov_mdhd_language_map[i]))
295
            return i;
296
    }
297
    /* XXX:can we do that in mov too? */
298
    if (!mp4)
299
        return -1;
300
    /* handle undefined as such */
301
    if (lang[0] == '\0')
302
        lang = "und";
303
    /* 5bit ascii */
304
    for (i = 0; i < 3; i++) {
305
        uint8_t c = lang[i];
306
        c -= 0x60;
307
        if (c > 0x1f)
308
            return -1;
309
        code <<= 5;
310
        code |= c;
311
    }
312
    return code;
313
}
314

    
315
int ff_mov_lang_to_iso639(unsigned code, char to[4])
316
{
317
    int i;
318
    memset(to, 0, 4);
319
    /* is it the mangled iso code? */
320
    /* see http://www.geocities.com/xhelmboyx/quicktime/formats/mp4-layout.txt */
321
    if (code > 138) {
322
        for (i = 2; i >= 0; i--) {
323
            to[i] = 0x60 + (code & 0x1f);
324
            code >>= 5;
325
        }
326
        return 1;
327
    }
328
    /* old fashion apple lang code */
329
    if (code >= FF_ARRAY_ELEMS(mov_mdhd_language_map))
330
        return 0;
331
    if (!mov_mdhd_language_map[code][0])
332
        return 0;
333
    memcpy(to, mov_mdhd_language_map[code], 4);
334
    return 1;
335
}
336

    
337
int ff_mp4_read_descr_len(ByteIOContext *pb)
338
{
339
    int len = 0;
340
    int count = 4;
341
    while (count--) {
342
        int c = get_byte(pb);
343
        len = (len << 7) | (c & 0x7f);
344
        if (!(c & 0x80))
345
            break;
346
    }
347
    return len;
348
}
349

    
350
int ff_mp4_read_descr(AVFormatContext *fc, ByteIOContext *pb, int *tag)
351
{
352
    int len;
353
    *tag = get_byte(pb);
354
    len = ff_mp4_read_descr_len(pb);
355
    av_dlog(fc, "MPEG4 description: tag=0x%02x len=%d\n", *tag, len);
356
    return len;
357
}
358

    
359
static const AVCodecTag mp4_audio_types[] = {
360
    { CODEC_ID_MP3ON4, AOT_PS   }, /* old mp3on4 draft */
361
    { CODEC_ID_MP3ON4, AOT_L1   }, /* layer 1 */
362
    { CODEC_ID_MP3ON4, AOT_L2   }, /* layer 2 */
363
    { CODEC_ID_MP3ON4, AOT_L3   }, /* layer 3 */
364
    { CODEC_ID_MP4ALS, AOT_ALS  }, /* MPEG-4 ALS */
365
    { CODEC_ID_NONE,   AOT_NULL },
366
};
367

    
368
int ff_mp4_read_dec_config_descr(AVFormatContext *fc, AVStream *st, ByteIOContext *pb)
369
{
370
    int len, tag;
371
    int object_type_id = get_byte(pb);
372
    get_byte(pb); /* stream type */
373
    get_be24(pb); /* buffer size db */
374
    get_be32(pb); /* max bitrate */
375
    get_be32(pb); /* avg bitrate */
376

    
377
    st->codec->codec_id= ff_codec_get_id(ff_mp4_obj_type, object_type_id);
378
    av_dlog(fc, "esds object type id 0x%02x\n", object_type_id);
379
    len = ff_mp4_read_descr(fc, pb, &tag);
380
    if (tag == MP4DecSpecificDescrTag) {
381
        av_dlog(fc, "Specific MPEG4 header len=%d\n", len);
382
        if((uint64_t)len > (1<<30))
383
            return -1;
384
        av_free(st->codec->extradata);
385
        st->codec->extradata = av_mallocz(len + FF_INPUT_BUFFER_PADDING_SIZE);
386
        if (!st->codec->extradata)
387
            return AVERROR(ENOMEM);
388
        get_buffer(pb, st->codec->extradata, len);
389
        st->codec->extradata_size = len;
390
        if (st->codec->codec_id == CODEC_ID_AAC) {
391
            MPEG4AudioConfig cfg;
392
            ff_mpeg4audio_get_config(&cfg, st->codec->extradata,
393
                                     st->codec->extradata_size);
394
            st->codec->channels = cfg.channels;
395
            if (cfg.object_type == 29 && cfg.sampling_index < 3) // old mp3on4
396
                st->codec->sample_rate = ff_mpa_freq_tab[cfg.sampling_index];
397
            else if (cfg.ext_sample_rate)
398
                st->codec->sample_rate = cfg.ext_sample_rate;
399
            else
400
                st->codec->sample_rate = cfg.sample_rate;
401
            av_dlog(fc, "mp4a config channels %d obj %d ext obj %d "
402
                    "sample rate %d ext sample rate %d\n", st->codec->channels,
403
                    cfg.object_type, cfg.ext_object_type,
404
                    cfg.sample_rate, cfg.ext_sample_rate);
405
            if (!(st->codec->codec_id = ff_codec_get_id(mp4_audio_types,
406
                                                        cfg.object_type)))
407
                st->codec->codec_id = CODEC_ID_AAC;
408
        }
409
    }
410
    return 0;
411
}