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ffmpeg / libavformat / isom.c @ b7effd4e

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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 */
241

    
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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_QDMC, MKTAG('Q', 'D', 'M', 'C') }, /* QDMC */
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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') },
259

    
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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 */
272
/* 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",
280
    /*?*/
281
    "aze", "arm", "geo", "mol", "kir", "tgk", "tuk", "mon",    "", "pus",
282
    "kur", "kas", "snd", "tib", "nep", "san", "mar", "ben", "asm", "guj",
283
    "pa ", "ori", "mal", "kan", "tam", "tel",    "", "bur", "khm", "lao",
284
    /*                   roman? arabic? */
285
    "vie", "ind", "tgl", "may", "may", "amh", "tir", "orm", "som", "swa",
286
    /*==rundi?*/
287
       "", "run",    "", "mlg", "epo",    "",    "",    "",    "",    "",
288
    /* 100 */
289
       "",    "",    "",    "",    "",    "",    "",    "",    "",    "",
290
       "",    "",    "",    "",    "",    "",    "",    "",    "",    "",
291
       "",    "",    "",    "",    "",    "",    "",    "", "wel", "baq",
292
    "cat", "lat", "que", "grn", "aym", "tat", "uig", "dzo", "jav"
293
};
294

    
295
int ff_mov_iso639_to_lang(const char lang[4], int mp4)
296
{
297
    int i, code = 0;
298

    
299
    /* old way, only for QT? */
300
    for (i = 0; lang[0] && !mp4 && i < FF_ARRAY_ELEMS(mov_mdhd_language_map); i++) {
301
        if (!strcmp(lang, mov_mdhd_language_map[i]))
302
            return i;
303
    }
304
    /* XXX:can we do that in mov too? */
305
    if (!mp4)
306
        return -1;
307
    /* handle undefined as such */
308
    if (lang[0] == '\0')
309
        lang = "und";
310
    /* 5bit ascii */
311
    for (i = 0; i < 3; i++) {
312
        uint8_t c = lang[i];
313
        c -= 0x60;
314
        if (c > 0x1f)
315
            return -1;
316
        code <<= 5;
317
        code |= c;
318
    }
319
    return code;
320
}
321

    
322
int ff_mov_lang_to_iso639(unsigned code, char to[4])
323
{
324
    int i;
325
    memset(to, 0, 4);
326
    /* is it the mangled iso code? */
327
    /* see http://www.geocities.com/xhelmboyx/quicktime/formats/mp4-layout.txt */
328
    if (code > 138) {
329
        for (i = 2; i >= 0; i--) {
330
            to[i] = 0x60 + (code & 0x1f);
331
            code >>= 5;
332
        }
333
        return 1;
334
    }
335
    /* old fashion apple lang code */
336
    if (code >= FF_ARRAY_ELEMS(mov_mdhd_language_map))
337
        return 0;
338
    if (!mov_mdhd_language_map[code][0])
339
        return 0;
340
    memcpy(to, mov_mdhd_language_map[code], 4);
341
    return 1;
342
}
343

    
344
int ff_mp4_read_descr_len(AVIOContext *pb)
345
{
346
    int len = 0;
347
    int count = 4;
348
    while (count--) {
349
        int c = avio_r8(pb);
350
        len = (len << 7) | (c & 0x7f);
351
        if (!(c & 0x80))
352
            break;
353
    }
354
    return len;
355
}
356

    
357
int ff_mp4_read_descr(AVFormatContext *fc, AVIOContext *pb, int *tag)
358
{
359
    int len;
360
    *tag = avio_r8(pb);
361
    len = ff_mp4_read_descr_len(pb);
362
    av_dlog(fc, "MPEG4 description: tag=0x%02x len=%d\n", *tag, len);
363
    return len;
364
}
365

    
366
static const AVCodecTag mp4_audio_types[] = {
367
    { CODEC_ID_MP3ON4, AOT_PS   }, /* old mp3on4 draft */
368
    { CODEC_ID_MP3ON4, AOT_L1   }, /* layer 1 */
369
    { CODEC_ID_MP3ON4, AOT_L2   }, /* layer 2 */
370
    { CODEC_ID_MP3ON4, AOT_L3   }, /* layer 3 */
371
    { CODEC_ID_MP4ALS, AOT_ALS  }, /* MPEG-4 ALS */
372
    { CODEC_ID_NONE,   AOT_NULL },
373
};
374

    
375
int ff_mp4_read_dec_config_descr(AVFormatContext *fc, AVStream *st, AVIOContext *pb)
376
{
377
    int len, tag;
378
    int object_type_id = avio_r8(pb);
379
    avio_r8(pb); /* stream type */
380
    avio_rb24(pb); /* buffer size db */
381
    avio_rb32(pb); /* max bitrate */
382
    avio_rb32(pb); /* avg bitrate */
383

    
384
    st->codec->codec_id= ff_codec_get_id(ff_mp4_obj_type, object_type_id);
385
    av_dlog(fc, "esds object type id 0x%02x\n", object_type_id);
386
    len = ff_mp4_read_descr(fc, pb, &tag);
387
    if (tag == MP4DecSpecificDescrTag) {
388
        av_dlog(fc, "Specific MPEG4 header len=%d\n", len);
389
        if((uint64_t)len > (1<<30))
390
            return -1;
391
        av_free(st->codec->extradata);
392
        st->codec->extradata = av_mallocz(len + FF_INPUT_BUFFER_PADDING_SIZE);
393
        if (!st->codec->extradata)
394
            return AVERROR(ENOMEM);
395
        avio_read(pb, st->codec->extradata, len);
396
        st->codec->extradata_size = len;
397
        if (st->codec->codec_id == CODEC_ID_AAC) {
398
            MPEG4AudioConfig cfg;
399
            ff_mpeg4audio_get_config(&cfg, st->codec->extradata,
400
                                     st->codec->extradata_size);
401
            st->codec->channels = cfg.channels;
402
            if (cfg.object_type == 29 && cfg.sampling_index < 3) // old mp3on4
403
                st->codec->sample_rate = ff_mpa_freq_tab[cfg.sampling_index];
404
            else if (cfg.ext_sample_rate)
405
                st->codec->sample_rate = cfg.ext_sample_rate;
406
            else
407
                st->codec->sample_rate = cfg.sample_rate;
408
            av_dlog(fc, "mp4a config channels %d obj %d ext obj %d "
409
                    "sample rate %d ext sample rate %d\n", st->codec->channels,
410
                    cfg.object_type, cfg.ext_object_type,
411
                    cfg.sample_rate, cfg.ext_sample_rate);
412
            if (!(st->codec->codec_id = ff_codec_get_id(mp4_audio_types,
413
                                                        cfg.object_type)))
414
                st->codec->codec_id = CODEC_ID_AAC;
415
        }
416
    }
417
    return 0;
418
}