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1 6cea494e Zdenek Kabelac
/*
2 7fbde343 Aurelien Jacobs
 * MOV demuxer
3 19720f15 Fabrice Bellard
 * Copyright (c) 2001 Fabrice Bellard.
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 *
5 b78e7197 Diego Biurrun
 * This file is part of FFmpeg.
6
 *
7
 * FFmpeg is free software; you can redistribute it and/or
8 19720f15 Fabrice Bellard
 * modify it under the terms of the GNU Lesser General Public
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 * License as published by the Free Software Foundation; either
10 b78e7197 Diego Biurrun
 * version 2.1 of the License, or (at your option) any later version.
11 6cea494e Zdenek Kabelac
 *
12 b78e7197 Diego Biurrun
 * 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
14 19720f15 Fabrice Bellard
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15
 * Lesser General Public License for more details.
16 6cea494e Zdenek Kabelac
 *
17 19720f15 Fabrice Bellard
 * You should have received a copy of the GNU Lesser General Public
18 b78e7197 Diego Biurrun
 * License along with FFmpeg; if not, write to the Free Software
19 5509bffa Diego Biurrun
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 6cea494e Zdenek Kabelac
 */
21 d957696f Michael Niedermayer
22
#include <limits.h>
23 115329f1 Diego Biurrun
24 bfc2a19d Baptiste Coudurier
//#define DEBUG
25 4e5ef14f Baptiste Coudurier
26 6cea494e Zdenek Kabelac
#include "avformat.h"
27 9d9f4119 Måns Rullgård
#include "riff.h"
28 e40ee6a2 Baptiste Coudurier
#include "isom.h"
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#include "dv.h"
30 6cea494e Zdenek Kabelac
31 0147f198 François Revol
#ifdef CONFIG_ZLIB
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#include <zlib.h>
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#endif
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35 6cea494e Zdenek Kabelac
/*
36
 * First version by Francois Revol revol@free.fr
37 115329f1 Diego Biurrun
 * Seek function by Gael Chardon gael.dev@4now.net
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 *
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 * Features and limitations:
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 * - reads most of the QT files I have (at least the structure),
41 6cea494e Zdenek Kabelac
 *   the exceptions are .mov with zlib compressed headers ('cmov' section). It shouldn't be hard to implement.
42 0147f198 François Revol
 *   FIXED, Francois Revol, 07/17/2002
43 6cea494e Zdenek Kabelac
 * - ffmpeg has nearly none of the usual QuickTime codecs,
44
 *   although I succesfully dumped raw and mp3 audio tracks off .mov files.
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 *   Sample QuickTime files with mp3 audio can be found at: http://www.3ivx.com/showcase.html
46
 * - .mp4 parsing is still hazardous, although the format really is QuickTime with some minor changes
47
 *   (to make .mov parser crash maybe ?), despite what they say in the MPEG FAQ at
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 *   http://mpeg.telecomitalialab.com/faq.htm
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 * - the code is quite ugly... maybe I won't do it recursive next time :-)
50 baf25c9d Gael Chardon
 * - seek is not supported with files that contain edit list
51 5ca1d879 Zdenek Kabelac
 *
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 * Funny I didn't know about http://sourceforge.net/projects/qt-ffmpeg/
53
 * when coding this :) (it's a writer anyway)
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 *
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 * Reference documents:
56
 * http://www.geocities.com/xhelmboyx/quicktime/formats/qtm-layout.txt
57
 * Apple:
58 baf25c9d Gael Chardon
 *  http://developer.apple.com/documentation/QuickTime/QTFF/
59 15c8dbe7 Sebastien Bechet
 *  http://developer.apple.com/documentation/QuickTime/QTFF/qtff.pdf
60 6cea494e Zdenek Kabelac
 * QuickTime is a trademark of Apple (AFAIK :))
61
 */
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63 b595afaa Mike Melanson
#include "qtpalette.h"
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65 baf25c9d Gael Chardon
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#undef NDEBUG
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#include <assert.h>
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69 7caf0cc6 Michael Niedermayer
static const AVCodecTag mov_video_tags[] = {
70 6cea494e Zdenek Kabelac
/*  { CODEC_ID_, MKTAG('c', 'v', 'i', 'd') }, *//* Cinepak */
71 0147f198 François Revol
/*  { CODEC_ID_H263, MKTAG('r', 'a', 'w', ' ') }, *//* Uncompressed RGB */
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/*  { CODEC_ID_H263, MKTAG('Y', 'u', 'v', '2') }, *//* Uncompressed YUV422 */
73 53e27dd5 Sebastien Bechet
/*    { CODEC_ID_RAWVIDEO, MKTAG('A', 'V', 'U', 'I') }, *//* YUV with alpha-channel (AVID Uncompressed) */
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/* Graphics */
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/* Animation */
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/* Apple video */
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/* Kodak Photo CD */
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    { CODEC_ID_MJPEG, MKTAG('j', 'p', 'e', 'g') }, /* PhotoJPEG */
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    { CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'e', 'g') }, /* MPEG */
80 3ffe3793 François Revol
    { CODEC_ID_MJPEG, MKTAG('m', 'j', 'p', 'a') }, /* Motion-JPEG (format A) */
81 750b4aaa Baptiste Coudurier
    { CODEC_ID_MJPEGB, MKTAG('m', 'j', 'p', 'b') }, /* Motion-JPEG (format B) */
82 53e27dd5 Sebastien Bechet
    { 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) */
84 20da94e8 Baptiste Coudurier
    { CODEC_ID_GIF, MKTAG('g', 'i', 'f', ' ') }, /* embedded gif files as frames (usually one "click to play movie" frame) */
85 6cea494e Zdenek Kabelac
/* Sorenson video */
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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 */
88 3ffe3793 François Revol
    { CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', 'i') }, /* Sorenson Video v1 (from QT specs)*/
89 8b82a956 Michael Niedermayer
    { CODEC_ID_SVQ3, MKTAG('S', 'V', 'Q', '3') }, /* Sorenson Video v3 */
90 0e7eed09 Fabrice Bellard
    { CODEC_ID_MPEG4, MKTAG('m', 'p', '4', 'v') },
91 6cea494e Zdenek Kabelac
    { CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', 'X') }, /* OpenDiVX *//* sample files at http://heroinewarrior.com/xmovie.php3 use this tag */
92 8dafdb88 Mike Melanson
    { CODEC_ID_MPEG4, MKTAG('X', 'V', 'I', 'D') },
93 fcc87242 François Revol
    { CODEC_ID_MPEG4, MKTAG('3', 'I', 'V', '2') }, /* experimental: 3IVX files before ivx D4 4.5.1 */
94 6cea494e Zdenek Kabelac
/*    { CODEC_ID_, MKTAG('I', 'V', '5', '0') }, *//* Indeo 5.0 */
95 0147f198 François Revol
    { CODEC_ID_H263, MKTAG('h', '2', '6', '3') }, /* H263 */
96 25fa62e1 Zdenek Kabelac
    { CODEC_ID_H263, MKTAG('s', '2', '6', '3') }, /* H263 ?? works */
97 e1687cc0 Fabrice Bellard
    { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', ' ') }, /* DV NTSC */
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    { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', 'p') }, /* DV PAL */
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    { CODEC_ID_VP3, MKTAG('V', 'P', '3', '1') }, /* On2 VP3 */
100 2fdf638b Mike Melanson
    { CODEC_ID_RPZA, MKTAG('r', 'p', 'z', 'a') }, /* Apple Video (RPZA) */
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    { CODEC_ID_CINEPAK, MKTAG('c', 'v', 'i', 'd') }, /* Cinepak */
102 1dc1ed99 Roberto Togni
    { CODEC_ID_8BPS, MKTAG('8', 'B', 'P', 'S') }, /* Planar RGB (8BPS) */
103 b595afaa Mike Melanson
    { CODEC_ID_SMC, MKTAG('s', 'm', 'c', ' ') }, /* Apple Graphics (SMC) */
104 070ed1bc Mike Melanson
    { CODEC_ID_QTRLE, MKTAG('r', 'l', 'e', ' ') }, /* Apple Animation (RLE) */
105 429088dc Baptiste Coudurier
    { CODEC_ID_MSRLE, MKTAG('W', 'R', 'L', 'E') },
106 d08d7142 Mike Melanson
    { CODEC_ID_QDRAW, MKTAG('q', 'd', 'r', 'w') }, /* QuickDraw */
107 169eb021 Mike Melanson
    { CODEC_ID_H264, MKTAG('a', 'v', 'c', '1') }, /* AVC-1/H.264 */
108 a3075830 Aurelien Jacobs
    { CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '2') }, /* MPEG2 produced by Sony HD camera */
109 dcadd216 Michael Niedermayer
    { CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '3') }, /* HDV produced by FCP */
110 79c343c0 Baptiste Coudurier
    { 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', '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_DVVIDEO, MKTAG('d', 'v', 'p', 'p') }, /* DVCPRO PAL produced by FCP */
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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', '5', 'p') }, /* DVCPRO50 PAL produced by FCP */
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    { CODEC_ID_DVVIDEO, MKTAG('d', 'v', '5', 'n') }, /* DVCPRO50 NTSC produced by FCP */
119 b6c1bfe0 Baptiste Coudurier
    { CODEC_ID_DVVIDEO, MKTAG('A', 'V', 'd', 'v') }, /* AVID DV */
120 79c343c0 Baptiste Coudurier
    //{ CODEC_ID_JPEG2000, MKTAG('m', 'j', 'p', '2') }, /* JPEG 2000 produced by FCP */
121 3689cf16 Kostya Shishkov
    { CODEC_ID_TARGA, MKTAG('t', 'g', 'a', ' ') }, /* Truevision Targa */
122 a991b1fe Kostya Shishkov
    { CODEC_ID_TIFF, MKTAG('t', 'i', 'f', 'f') }, /* TIFF embedded in MOV */
123 ed70a509 Baptiste Coudurier
    { CODEC_ID_RAWVIDEO, MKTAG('2', 'v', 'u', 'y') }, /* UNCOMPRESSED 8BIT 4:2:2 */
124 c3135e11 Baptiste Coudurier
    { CODEC_ID_VC1,  MKTAG('v', 'c', '-', '1') }, /* SMPTE RP 2025 */
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    { CODEC_ID_WMV3, MKTAG('v', 'c', '-', '1') }, /* SMPTE RP 2025 */
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    { CODEC_ID_PNG,  MKTAG('p', 'n', 'g', ' ') },
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    { CODEC_ID_NONE, 0 },
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};
129
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static const AVCodecTag mov_audio_tags[] = {
131 bd12d3e9 Baptiste Coudurier
    { CODEC_ID_PCM_S32BE, MKTAG('i', 'n', '3', '2') },
132 dcadd216 Michael Niedermayer
    { CODEC_ID_PCM_S24BE, MKTAG('i', 'n', '2', '4') },
133 61e3dd78 Baptiste Coudurier
    { CODEC_ID_PCM_S16BE, MKTAG('N', 'O', 'N', 'E') }, /* uncompressed */
134 6cea494e Zdenek Kabelac
    { CODEC_ID_PCM_S16BE, MKTAG('t', 'w', 'o', 's') }, /* 16 bits */
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    { CODEC_ID_PCM_U8, MKTAG('r', 'a', 'w', ' ') }, /* 8 bits unsigned */
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    { CODEC_ID_PCM_S16LE, MKTAG('s', 'o', 'w', 't') }, /*  */
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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') }, /*  */
139 0147f198 François Revol
    { CODEC_ID_ADPCM_IMA_QT, MKTAG('i', 'm', 'a', '4') }, /* IMA-4 ADPCM */
140 e8d2507c Baptiste Coudurier
    { CODEC_ID_ADPCM_MS, MKTAG('m', 's', 0x00, 0x02) }, /* MS ADPCM */
141 3f95e843 François Revol
    { 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 */
143 6cea494e Zdenek Kabelac
144 2ec7b29b Baptiste Coudurier
    { 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_MP2, 0x6D730055 }, /* MPEG layer 3 */
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    { CODEC_ID_MP2, 0x5500736D }, /* MPEG layer 3 *//* XXX: check endianness */
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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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/* MP4 tags */
149 f2196640 François Revol
    { CODEC_ID_AAC, MKTAG('m', 'p', '4', 'a') }, /* MPEG-4 AAC */
150 5ca1d879 Zdenek Kabelac
    /* The standard for mpeg4 audio is still not normalised AFAIK anyway */
151 891f64b3 joca@rixmail.se
    { CODEC_ID_AMR_NB, MKTAG('s', 'a', 'm', 'r') }, /* AMR-NB 3gp */
152 d663a1fd Michael Niedermayer
    { CODEC_ID_AMR_WB, MKTAG('s', 'a', 'w', 'b') }, /* AMR-WB 3gp */
153 8dafdb88 Mike Melanson
    { CODEC_ID_AC3, MKTAG('m', 's', 0x20, 0x00) }, /* Dolby AC-3 */
154 6d6d7970 Mike Melanson
    { CODEC_ID_ALAC,MKTAG('a', 'l', 'a', 'c') }, /* Apple Lossless */
155 d9b1c197 Roberto Togni
    { CODEC_ID_QDM2,MKTAG('Q', 'D', 'M', '2') }, /* QDM2 */
156 b60c0454 Baptiste Coudurier
    { CODEC_ID_DVAUDIO, MKTAG('v', 'd', 'v', 'a') },
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    { CODEC_ID_DVAUDIO, MKTAG('d', 'v', 'c', 'a') },
158 e6f4c806 Baptiste Coudurier
    { CODEC_ID_PCM_S16LE, MKTAG('l', 'p', 'c', 'm') },
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    { CODEC_ID_NONE, 0 },
160 6cea494e Zdenek Kabelac
};
161
162
/* the QuickTime file format is quite convoluted...
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 * it has lots of index tables, each indexing something in another one...
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 * Here we just use what is needed to read the chunks
165
 */
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typedef struct MOV_sample_to_chunk_tbl {
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    long first;
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    long count;
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    long id;
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} MOV_sample_to_chunk_tbl;
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173 5cd62665 Zdenek Kabelac
typedef struct {
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    uint32_t type;
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    int64_t offset;
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    int64_t size; /* total size (excluding the size and type fields) */
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} MOV_atom_t;
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typedef struct {
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    int seed;
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    int flags;
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    int size;
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    void* clrs;
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} MOV_ctab_t;
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186 b72708f8 Baptiste Coudurier
typedef struct MOV_mdat_atom_s {
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    offset_t offset;
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    int64_t size;
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} MOV_mdat_atom_t;
190
191 5ca1d879 Zdenek Kabelac
typedef struct {
192 5cd62665 Zdenek Kabelac
    uint8_t  version;
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    uint32_t flags; // 24bit
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    /* 0x03 ESDescrTag */
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    uint16_t es_id;
197 bb270c08 Diego Biurrun
#define MP4ODescrTag                    0x01
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#define MP4IODescrTag                   0x02
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#define MP4ESDescrTag                   0x03
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#define MP4DecConfigDescrTag            0x04
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#define MP4DecSpecificDescrTag          0x05
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#define MP4SLConfigDescrTag             0x06
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#define MP4ContentIdDescrTag            0x07
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#define MP4SupplContentIdDescrTag       0x08
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#define MP4IPIPtrDescrTag               0x09
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#define MP4IPMPPtrDescrTag              0x0A
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#define MP4IPMPDescrTag                 0x0B
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#define MP4RegistrationDescrTag         0x0D
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#define MP4ESIDIncDescrTag              0x0E
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#define MP4ESIDRefDescrTag              0x0F
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#define MP4FileIODescrTag               0x10
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#define MP4FileODescrTag                0x11
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#define MP4ExtProfileLevelDescrTag      0x13
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#define MP4ExtDescrTagsStart            0x80
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#define MP4ExtDescrTagsEnd              0xFE
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    uint8_t  stream_priority;
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    /* 0x04 DecConfigDescrTag */
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    uint8_t  object_type_id;
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    uint8_t  stream_type;
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    /* XXX: really streamType is
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     * only 6bit, followed by:
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     * 1bit  upStream
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     * 1bit  reserved
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     */
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    uint32_t buffer_size_db; // 24
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    uint32_t max_bitrate;
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    uint32_t avg_bitrate;
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    /* 0x05 DecSpecificDescrTag */
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    uint8_t  decoder_cfg_len;
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    uint8_t *decoder_cfg;
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    /* 0x06 SLConfigDescrTag */
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    uint8_t  sl_config_len;
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    uint8_t *sl_config;
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} MOV_esds_t;
238
239 b6a17df4 Zdenek Kabelac
struct MOVParseTableEntry;
240
241 6cea494e Zdenek Kabelac
typedef struct MOVStreamContext {
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    int ffindex; /* the ffmpeg stream id */
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    long next_chunk;
244 44d3fea5 Baptiste Coudurier
    unsigned int chunk_count;
245 0c1a9eda Zdenek Kabelac
    int64_t *chunk_offsets;
246 44d3fea5 Baptiste Coudurier
    unsigned int stts_count;
247 cd461d48 Michael Niedermayer
    Time2Sample *stts_data;
248 44d3fea5 Baptiste Coudurier
    unsigned int ctts_count;
249 c4ac052b Michael Niedermayer
    Time2Sample *ctts_data;
250 44d3fea5 Baptiste Coudurier
    unsigned int edit_count; /* number of 'edit' (elst atom) */
251
    unsigned int sample_to_chunk_sz;
252 6cea494e Zdenek Kabelac
    MOV_sample_to_chunk_tbl *sample_to_chunk;
253 c4ac052b Michael Niedermayer
    int sample_to_ctime_index;
254
    int sample_to_ctime_sample;
255 44d3fea5 Baptiste Coudurier
    unsigned int sample_size;
256
    unsigned int sample_count;
257 6cea494e Zdenek Kabelac
    long *sample_sizes;
258 44d3fea5 Baptiste Coudurier
    unsigned int keyframe_count;
259 247d56f5 Brian Becker
    long *keyframes;
260 5cd62665 Zdenek Kabelac
    int time_scale;
261 cd7352d5 Michael Niedermayer
    int time_rate;
262 3ffe3793 François Revol
    long current_sample;
263 5ca1d879 Zdenek Kabelac
    MOV_esds_t esds;
264 b72708f8 Baptiste Coudurier
    AVRational sample_size_v1;
265 b60c0454 Baptiste Coudurier
    int dv_audio_container;
266 6cea494e Zdenek Kabelac
} MOVStreamContext;
267
268
typedef struct MOVContext {
269
    AVFormatContext *fc;
270 5cd62665 Zdenek Kabelac
    int time_scale;
271 7e815047 Baptiste Coudurier
    int64_t duration; /* duration of the longest track */
272 6cea494e Zdenek Kabelac
    int found_moov; /* when both 'moov' and 'mdat' sections has been found */
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    int found_mdat; /* we suppose we have enough data to read the file */
274 0c1a9eda Zdenek Kabelac
    int64_t mdat_offset;
275 6cea494e Zdenek Kabelac
    int total_streams;
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    MOVStreamContext *streams[MAX_STREAMS];
277 5cd62665 Zdenek Kabelac
278 5ca1d879 Zdenek Kabelac
    int ctab_size;
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    MOV_ctab_t **ctab;           /* color tables */
280 b6a17df4 Zdenek Kabelac
    const struct MOVParseTableEntry *parse_table; /* could be eventually used to change the table */
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    /* NOTE: for recursion save to/ restore from local variable! */
282 b595afaa Mike Melanson
283
    AVPaletteControl palette_control;
284 b72708f8 Baptiste Coudurier
    MOV_mdat_atom_t *mdat_list;
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    int mdat_count;
286 b60c0454 Baptiste Coudurier
    DVDemuxContext *dv_demux;
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    AVFormatContext *dv_fctx;
288 152e9a43 Baptiste Coudurier
    int isom; /* 1 if file is ISO Media (mp4/3gp) */
289 6cea494e Zdenek Kabelac
} MOVContext;
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/* XXX: it's the first time I make a recursive parser I think... sorry if it's ugly :P */
293
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/* those functions parse an atom */
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/* return code:
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 1: found what I wanted, exit
297
 0: continue to parse next atom
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 -1: error occured, exit
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 */
300 5ca1d879 Zdenek Kabelac
typedef int (*mov_parse_function)(MOVContext *ctx, ByteIOContext *pb, MOV_atom_t atom);
301 6cea494e Zdenek Kabelac
302
/* links atom IDs to parse functions */
303
typedef struct MOVParseTableEntry {
304 0c1a9eda Zdenek Kabelac
    uint32_t type;
305 6cea494e Zdenek Kabelac
    mov_parse_function func;
306
} MOVParseTableEntry;
307
308 5ca1d879 Zdenek Kabelac
static int mov_read_default(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
309 6cea494e Zdenek Kabelac
{
310 b6a17df4 Zdenek Kabelac
    int64_t total_size = 0;
311 5ca1d879 Zdenek Kabelac
    MOV_atom_t a;
312 6cea494e Zdenek Kabelac
    int i;
313
    int err = 0;
314 5ca1d879 Zdenek Kabelac
315
    a.offset = atom.offset;
316 6cea494e Zdenek Kabelac
317 9ed83b0a Zdenek Kabelac
    if (atom.size < 0)
318 bb270c08 Diego Biurrun
        atom.size = 0x7fffffffffffffffLL;
319 5ca1d879 Zdenek Kabelac
    while(((total_size + 8) < atom.size) && !url_feof(pb) && !err) {
320 bb270c08 Diego Biurrun
        a.size = atom.size;
321
        a.type=0L;
322 5ca1d879 Zdenek Kabelac
        if(atom.size >= 8) {
323 bb270c08 Diego Biurrun
            a.size = get_be32(pb);
324 5ca1d879 Zdenek Kabelac
            a.type = get_le32(pb);
325 6cea494e Zdenek Kabelac
        }
326 bb270c08 Diego Biurrun
        total_size += 8;
327 5ca1d879 Zdenek Kabelac
        a.offset += 8;
328 6f2741f4 Baptiste Coudurier
        dprintf("type: %08x  %.4s  sz: %"PRIx64"  %"PRIx64"   %"PRIx64"\n", a.type, (char*)&a.type, a.size, atom.size, total_size);
329 5ca1d879 Zdenek Kabelac
        if (a.size == 1) { /* 64 bit extended size */
330 bb270c08 Diego Biurrun
            a.size = get_be64(pb) - 8;
331 5ca1d879 Zdenek Kabelac
            a.offset += 8;
332
            total_size += 8;
333 6cea494e Zdenek Kabelac
        }
334 bb270c08 Diego Biurrun
        if (a.size == 0) {
335
            a.size = atom.size - total_size;
336
            if (a.size <= 8)
337 5cd62665 Zdenek Kabelac
                break;
338 bb270c08 Diego Biurrun
        }
339
        for (i = 0; c->parse_table[i].type != 0L
340
             && c->parse_table[i].type != a.type; i++)
341
            /* empty */;
342 5cd62665 Zdenek Kabelac
343 bb270c08 Diego Biurrun
        a.size -= 8;
344 115329f1 Diego Biurrun
345 568e18b1 Michael Niedermayer
        if(a.size < 0)
346
            break;
347 115329f1 Diego Biurrun
348 bb270c08 Diego Biurrun
        if (c->parse_table[i].type == 0) { /* skip leaf atoms data */
349 5ca1d879 Zdenek Kabelac
            url_fskip(pb, a.size);
350 bb270c08 Diego Biurrun
        } else {
351 5c72cad8 Baptiste Coudurier
            offset_t start_pos = url_ftell(pb);
352
            int64_t left;
353 bb270c08 Diego Biurrun
            err = (c->parse_table[i].func)(c, pb, a);
354 5c72cad8 Baptiste Coudurier
            left = a.size - url_ftell(pb) + start_pos;
355
            if (left > 0) /* skip garbage at atom end */
356
                url_fskip(pb, left);
357 bb270c08 Diego Biurrun
        }
358 6cea494e Zdenek Kabelac
359 bb270c08 Diego Biurrun
        a.offset += a.size;
360 5ca1d879 Zdenek Kabelac
        total_size += a.size;
361 6cea494e Zdenek Kabelac
    }
362
363 5ca1d879 Zdenek Kabelac
    if (!err && total_size < atom.size && atom.size < 0x7ffff) {
364
        url_fskip(pb, atom.size - total_size);
365 5cd62665 Zdenek Kabelac
    }
366
367 6cea494e Zdenek Kabelac
    return err;
368
}
369
370 5ca1d879 Zdenek Kabelac
static int mov_read_ctab(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
371 6cea494e Zdenek Kabelac
{
372 568e18b1 Michael Niedermayer
#if 1
373
    url_fskip(pb, atom.size); // for now
374
#else
375
    VERY VERY BROKEN, NEVER execute this, needs rewrite
376 88730be6 Måns Rullgård
    unsigned int len;
377
    MOV_ctab_t *t;
378 5ca1d879 Zdenek Kabelac
    c->ctab = av_realloc(c->ctab, ++c->ctab_size);
379
    t = c->ctab[c->ctab_size];
380
    t->seed = get_be32(pb);
381
    t->flags = get_be16(pb);
382
    t->size = get_be16(pb) + 1;
383
    len = 2 * t->size * 4;
384
    if (len > 0) {
385 bb270c08 Diego Biurrun
        t->clrs = av_malloc(len); // 16bit A R G B
386
        if (t->clrs)
387
            get_buffer(pb, t->clrs, len);
388 3ffe3793 François Revol
    }
389 568e18b1 Michael Niedermayer
#endif
390 5cd62665 Zdenek Kabelac
391 0147f198 François Revol
    return 0;
392
}
393
394 5ca1d879 Zdenek Kabelac
static int mov_read_hdlr(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
395 6cea494e Zdenek Kabelac
{
396 5ca1d879 Zdenek Kabelac
    AVStream *st = c->fc->streams[c->fc->nb_streams-1];
397 0c1a9eda Zdenek Kabelac
    uint32_t type;
398
    uint32_t ctype;
399 b6a17df4 Zdenek Kabelac
400 6cea494e Zdenek Kabelac
    get_byte(pb); /* version */
401
    get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
402
403
    /* component type */
404
    ctype = get_le32(pb);
405
    type = get_le32(pb); /* component subtype */
406
407 4e5ef14f Baptiste Coudurier
    dprintf("ctype= %c%c%c%c (0x%08lx)\n", *((char *)&ctype), ((char *)&ctype)[1], ((char *)&ctype)[2], ((char *)&ctype)[3], (long) ctype);
408
    dprintf("stype= %c%c%c%c\n", *((char *)&type), ((char *)&type)[1], ((char *)&type)[2], ((char *)&type)[3]);
409 152e9a43 Baptiste Coudurier
    if(!ctype)
410
        c->isom = 1;
411 73920f07 Baptiste Coudurier
    if(type == MKTAG('v', 'i', 'd', 'e'))
412
        st->codec->codec_type = CODEC_TYPE_VIDEO;
413
    else if(type == MKTAG('s', 'o', 'u', 'n'))
414
        st->codec->codec_type = CODEC_TYPE_AUDIO;
415 95a07973 Baptiste Coudurier
    else if(type == MKTAG('m', '1', 'a', ' '))
416
        st->codec->codec_id = CODEC_ID_MP2;
417 8cb97693 Baptiste Coudurier
    else if(type == MKTAG('s', 'u', 'b', 'p')) {
418
        st->codec->codec_type = CODEC_TYPE_SUBTITLE;
419
        st->codec->codec_id = CODEC_ID_DVD_SUBTITLE;
420
    }
421 6cea494e Zdenek Kabelac
    get_be32(pb); /* component  manufacture */
422
    get_be32(pb); /* component flags */
423
    get_be32(pb); /* component flags mask */
424
425 5ca1d879 Zdenek Kabelac
    if(atom.size <= 24)
426 6cea494e Zdenek Kabelac
        return 0; /* nothing left to read */
427 5cd62665 Zdenek Kabelac
428 3c13647a Cedric Vincent
    url_fskip(pb, atom.size - (url_ftell(pb) - atom.offset));
429 6cea494e Zdenek Kabelac
    return 0;
430
}
431
432 5ca1d879 Zdenek Kabelac
static int mov_mp4_read_descr_len(ByteIOContext *pb)
433 0e7eed09 Fabrice Bellard
{
434 5cd62665 Zdenek Kabelac
    int len = 0;
435 5ca1d879 Zdenek Kabelac
    int count = 4;
436
    while (count--) {
437 5cd62665 Zdenek Kabelac
        int c = get_byte(pb);
438 bb270c08 Diego Biurrun
        len = (len << 7) | (c & 0x7f);
439
        if (!(c & 0x80))
440
            break;
441 0e7eed09 Fabrice Bellard
    }
442
    return len;
443
}
444
445 5ca1d879 Zdenek Kabelac
static int mov_mp4_read_descr(ByteIOContext *pb, int *tag)
446 0e7eed09 Fabrice Bellard
{
447
    int len;
448
    *tag = get_byte(pb);
449 5ca1d879 Zdenek Kabelac
    len = mov_mp4_read_descr_len(pb);
450 4e5ef14f Baptiste Coudurier
    dprintf("MPEG4 description: tag=0x%02x len=%d\n", *tag, len);
451 0e7eed09 Fabrice Bellard
    return len;
452
}
453
454 5ca1d879 Zdenek Kabelac
static int mov_read_esds(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
455 5cd62665 Zdenek Kabelac
{
456
    AVStream *st = c->fc->streams[c->fc->nb_streams-1];
457
    MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
458
    int tag, len;
459 b6a17df4 Zdenek Kabelac
460 5cd62665 Zdenek Kabelac
    /* Well, broken but suffisant for some MP4 streams */
461
    get_be32(pb); /* version + flags */
462 5ca1d879 Zdenek Kabelac
    len = mov_mp4_read_descr(pb, &tag);
463 5cd62665 Zdenek Kabelac
    if (tag == MP4ESDescrTag) {
464 bb270c08 Diego Biurrun
        get_be16(pb); /* ID */
465
        get_byte(pb); /* priority */
466 5cd62665 Zdenek Kabelac
    } else
467 bb270c08 Diego Biurrun
        get_be16(pb); /* ID */
468 5cd62665 Zdenek Kabelac
469 5ca1d879 Zdenek Kabelac
    len = mov_mp4_read_descr(pb, &tag);
470 5cd62665 Zdenek Kabelac
    if (tag == MP4DecConfigDescrTag) {
471 bb270c08 Diego Biurrun
        sc->esds.object_type_id = get_byte(pb);
472
        sc->esds.stream_type = get_byte(pb);
473
        sc->esds.buffer_size_db = get_be24(pb);
474
        sc->esds.max_bitrate = get_be32(pb);
475
        sc->esds.avg_bitrate = get_be32(pb);
476
477 e60b4ced Baptiste Coudurier
        st->codec->codec_id= codec_get_id(ff_mov_obj_type, sc->esds.object_type_id);
478 986c2ccb Baptiste Coudurier
        dprintf("esds object type id %d\n", sc->esds.object_type_id);
479 bb270c08 Diego Biurrun
        len = mov_mp4_read_descr(pb, &tag);
480
        if (tag == MP4DecSpecificDescrTag) {
481 4e5ef14f Baptiste Coudurier
            dprintf("Specific MPEG4 header len=%d\n", len);
482 9a630c25 Baptiste Coudurier
            st->codec->extradata = av_mallocz(len + FF_INPUT_BUFFER_PADDING_SIZE);
483 bb270c08 Diego Biurrun
            if (st->codec->extradata) {
484
                get_buffer(pb, st->codec->extradata, len);
485
                st->codec->extradata_size = len;
486 e31bd3e3 Baptiste Coudurier
                /* from mplayer */
487 b95d44b6 Baptiste Coudurier
                if ((*st->codec->extradata >> 3) == 29) {
488 e31bd3e3 Baptiste Coudurier
                    st->codec->codec_id = CODEC_ID_MP3ON4;
489
                }
490 bb270c08 Diego Biurrun
            }
491
        }
492 5cd62665 Zdenek Kabelac
    }
493
    return 0;
494
}
495
496 5ca1d879 Zdenek Kabelac
/* this atom contains actual media data */
497
static int mov_read_mdat(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
498 6cea494e Zdenek Kabelac
{
499 5ca1d879 Zdenek Kabelac
    if(atom.size == 0) /* wrong one (MP4) */
500
        return 0;
501 b72708f8 Baptiste Coudurier
    c->mdat_list = av_realloc(c->mdat_list, (c->mdat_count + 1) * sizeof(*c->mdat_list));
502
    c->mdat_list[c->mdat_count].offset = atom.offset;
503
    c->mdat_list[c->mdat_count].size = atom.size;
504
    c->mdat_count++;
505 5ca1d879 Zdenek Kabelac
    c->found_mdat=1;
506
    c->mdat_offset = atom.offset;
507
    if(c->found_moov)
508
        return 1; /* found both, just go */
509
    url_fskip(pb, atom.size);
510
    return 0; /* now go for moov */
511
}
512
513 4ea28253 Baptiste Coudurier
static int mov_read_ftyp(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
514
{
515
    uint32_t type = get_le32(pb);
516
517 152e9a43 Baptiste Coudurier
    if (type != MKTAG('q','t',' ',' '))
518
        c->isom = 1;
519 a512446e Baptiste Coudurier
    av_log(c->fc, AV_LOG_DEBUG, "ISO: File Type Major Brand: %.4s\n",(char *)&type);
520 4ea28253 Baptiste Coudurier
    get_be32(pb); /* minor version */
521
    url_fskip(pb, atom.size - 8);
522
    return 0;
523
}
524
525 5ca1d879 Zdenek Kabelac
/* this atom should contain all header atoms */
526
static int mov_read_moov(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
527
{
528
    int err;
529 b6a17df4 Zdenek Kabelac
530 5ca1d879 Zdenek Kabelac
    err = mov_read_default(c, pb, atom);
531
    /* we parsed the 'moov' atom, we can terminate the parsing as soon as we find the 'mdat' */
532
    /* so we don't parse the whole file if over a network */
533
    c->found_moov=1;
534
    if(c->found_mdat)
535
        return 1; /* found both, just go */
536
    return 0; /* now go for mdat */
537
}
538
539
540
static int mov_read_mdhd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
541
{
542 f444b977 Baptiste Coudurier
    AVStream *st = c->fc->streams[c->fc->nb_streams-1];
543
    MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
544
    int version = get_byte(pb);
545 b9a87c4d François Revol
    int lang;
546 5ca1d879 Zdenek Kabelac
547 b9a87c4d François Revol
    if (version > 1)
548
        return 1; /* unsupported */
549 5ca1d879 Zdenek Kabelac
550
    get_byte(pb); get_byte(pb);
551
    get_byte(pb); /* flags */
552
553 f444b977 Baptiste Coudurier
    if (version == 1) {
554
        get_be64(pb);
555
        get_be64(pb);
556
    } else {
557
        get_be32(pb); /* creation time */
558
        get_be32(pb); /* modification time */
559
    }
560 5ca1d879 Zdenek Kabelac
561 f444b977 Baptiste Coudurier
    sc->time_scale = get_be32(pb);
562
    st->duration = (version == 1) ? get_be64(pb) : get_be32(pb); /* duration */
563 5ca1d879 Zdenek Kabelac
564 b9a87c4d François Revol
    lang = get_be16(pb); /* language */
565 f444b977 Baptiste Coudurier
    ff_mov_lang_to_iso639(lang, st->language);
566 5ca1d879 Zdenek Kabelac
    get_be16(pb); /* quality */
567
568
    return 0;
569
}
570
571
static int mov_read_mvhd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
572
{
573 1175561e Baptiste Coudurier
    int version = get_byte(pb); /* version */
574 5ca1d879 Zdenek Kabelac
    get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
575
576 1175561e Baptiste Coudurier
    if (version == 1) {
577
        get_be64(pb);
578
        get_be64(pb);
579
    } else {
580
        get_be32(pb); /* creation time */
581
        get_be32(pb); /* modification time */
582
    }
583 5ca1d879 Zdenek Kabelac
    c->time_scale = get_be32(pb); /* time scale */
584
#ifdef DEBUG
585 baf25c9d Gael Chardon
    av_log(NULL, AV_LOG_DEBUG, "time scale = %i\n", c->time_scale);
586 5ca1d879 Zdenek Kabelac
#endif
587 1175561e Baptiste Coudurier
    c->duration = (version == 1) ? get_be64(pb) : get_be32(pb); /* duration */
588 5ca1d879 Zdenek Kabelac
    get_be32(pb); /* preferred scale */
589
590
    get_be16(pb); /* preferred volume */
591
592
    url_fskip(pb, 10); /* reserved */
593
594
    url_fskip(pb, 36); /* display matrix */
595
596
    get_be32(pb); /* preview time */
597
    get_be32(pb); /* preview duration */
598
    get_be32(pb); /* poster time */
599
    get_be32(pb); /* selection time */
600
    get_be32(pb); /* selection duration */
601
    get_be32(pb); /* current time */
602
    get_be32(pb); /* next track ID */
603
604
    return 0;
605
}
606
607 9ed83b0a Zdenek Kabelac
static int mov_read_smi(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
608
{
609
    AVStream *st = c->fc->streams[c->fc->nb_streams-1];
610
611 568e18b1 Michael Niedermayer
    if((uint64_t)atom.size > (1<<30))
612
        return -1;
613 115329f1 Diego Biurrun
614 9ed83b0a Zdenek Kabelac
    // currently SVQ3 decoder expect full STSD header - so let's fake it
615
    // this should be fixed and just SMI header should be passed
616 01f4895c Michael Niedermayer
    av_free(st->codec->extradata);
617
    st->codec->extradata_size = 0x5a + atom.size;
618 9a630c25 Baptiste Coudurier
    st->codec->extradata = av_mallocz(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
619 01f4895c Michael Niedermayer
620
    if (st->codec->extradata) {
621 560588b7 Baptiste Coudurier
        memcpy(st->codec->extradata, "SVQ3", 4); // fake
622 b95d44b6 Baptiste Coudurier
        get_buffer(pb, st->codec->extradata + 0x5a, atom.size);
623
        dprintf("Reading SMI %"PRId64"  %s\n", atom.size, st->codec->extradata + 0x5a);
624 9ed83b0a Zdenek Kabelac
    } else
625 bb270c08 Diego Biurrun
        url_fskip(pb, atom.size);
626 9ed83b0a Zdenek Kabelac
627
    return 0;
628
}
629 5ca1d879 Zdenek Kabelac
630 de23f234 Baptiste Coudurier
static int mov_read_enda(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
631
{
632
    AVStream *st = c->fc->streams[c->fc->nb_streams-1];
633
    int little_endian = get_be16(pb);
634
635
    if (little_endian) {
636
        switch (st->codec->codec_id) {
637
        case CODEC_ID_PCM_S24BE:
638
            st->codec->codec_id = CODEC_ID_PCM_S24LE;
639
            break;
640
        case CODEC_ID_PCM_S32BE:
641
            st->codec->codec_id = CODEC_ID_PCM_S32LE;
642
            break;
643
        default:
644
            break;
645
        }
646
    }
647
    return 0;
648
}
649
650
static int mov_read_alac(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
651
{
652
    AVStream *st = c->fc->streams[c->fc->nb_streams-1];
653
654
    // currently ALAC decoder expect full atom header - so let's fake it
655
    // this should be fixed and just ALAC header should be passed
656
657
    av_free(st->codec->extradata);
658
    st->codec->extradata_size = 36;
659 9a630c25 Baptiste Coudurier
    st->codec->extradata = av_mallocz(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
660 de23f234 Baptiste Coudurier
661
    if (st->codec->extradata) {
662 560588b7 Baptiste Coudurier
        memcpy(st->codec->extradata + 4, "alac", 4); // fake
663 b95d44b6 Baptiste Coudurier
        get_buffer(pb, st->codec->extradata + 8, 36 - 8);
664
        dprintf("Reading alac %d  %s\n", st->codec->extradata_size, st->codec->extradata);
665 de23f234 Baptiste Coudurier
    } else
666
        url_fskip(pb, atom.size);
667
    return 0;
668
}
669
670 d9b1c197 Roberto Togni
static int mov_read_wave(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
671
{
672
    AVStream *st = c->fc->streams[c->fc->nb_streams-1];
673
674
    if((uint64_t)atom.size > (1<<30))
675
        return -1;
676 115329f1 Diego Biurrun
677 3840147e Michael Niedermayer
    if (st->codec->codec_id == CODEC_ID_QDM2) {
678
        // pass all frma atom to codec, needed at least for QDM2
679
        av_free(st->codec->extradata);
680
        st->codec->extradata_size = atom.size;
681 9a630c25 Baptiste Coudurier
        st->codec->extradata = av_mallocz(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
682 3840147e Michael Niedermayer
683
        if (st->codec->extradata) {
684
            get_buffer(pb, st->codec->extradata, atom.size);
685
        } else
686
            url_fskip(pb, atom.size);
687
    } else if (atom.size > 8) { /* to read frma, esds atoms */
688
        mov_read_default(c, pb, atom);
689 5c72cad8 Baptiste Coudurier
    } else
690 bb270c08 Diego Biurrun
        url_fskip(pb, atom.size);
691 d9b1c197 Roberto Togni
    return 0;
692
}
693
694 fc5188f3 Baptiste Coudurier
static int mov_read_jp2h(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
695
{
696
    AVStream *st = c->fc->streams[c->fc->nb_streams-1];
697
698
    if((uint64_t)atom.size > (1<<30))
699
        return -1;
700
701
    av_free(st->codec->extradata);
702
703
    st->codec->extradata_size = atom.size + 8;
704 9a630c25 Baptiste Coudurier
    st->codec->extradata = av_mallocz(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
705 fc5188f3 Baptiste Coudurier
706
    /* pass all jp2h atom to codec */
707
    if (st->codec->extradata) {
708 560588b7 Baptiste Coudurier
        memcpy(st->codec->extradata + 4, "jp2h", 4);
709 b95d44b6 Baptiste Coudurier
        get_buffer(pb, st->codec->extradata + 8, atom.size);
710 fc5188f3 Baptiste Coudurier
    } else
711
        url_fskip(pb, atom.size);
712
    return 0;
713
}
714
715 169eb021 Mike Melanson
static int mov_read_avcC(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
716
{
717
    AVStream *st = c->fc->streams[c->fc->nb_streams-1];
718
719 568e18b1 Michael Niedermayer
    if((uint64_t)atom.size > (1<<30))
720
        return -1;
721
722 01f4895c Michael Niedermayer
    av_free(st->codec->extradata);
723 169eb021 Mike Melanson
724 01f4895c Michael Niedermayer
    st->codec->extradata_size = atom.size;
725 9a630c25 Baptiste Coudurier
    st->codec->extradata = av_mallocz(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
726 169eb021 Mike Melanson
727 01f4895c Michael Niedermayer
    if (st->codec->extradata) {
728 bb270c08 Diego Biurrun
        get_buffer(pb, st->codec->extradata, atom.size);
729 169eb021 Mike Melanson
    } else
730 bb270c08 Diego Biurrun
        url_fskip(pb, atom.size);
731 169eb021 Mike Melanson
732
    return 0;
733
}
734
735 5ca1d879 Zdenek Kabelac
static int mov_read_stco(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
736
{
737
    AVStream *st = c->fc->streams[c->fc->nb_streams-1];
738
    MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
739 568e18b1 Michael Niedermayer
    unsigned int i, entries;
740 5ca1d879 Zdenek Kabelac
741
    get_byte(pb); /* version */
742
    get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
743
744
    entries = get_be32(pb);
745 115329f1 Diego Biurrun
746 568e18b1 Michael Niedermayer
    if(entries >= UINT_MAX/sizeof(int64_t))
747
        return -1;
748 115329f1 Diego Biurrun
749 5ca1d879 Zdenek Kabelac
    sc->chunk_count = entries;
750 9a630c25 Baptiste Coudurier
    sc->chunk_offsets = av_malloc(entries * sizeof(int64_t));
751 5ca1d879 Zdenek Kabelac
    if (!sc->chunk_offsets)
752
        return -1;
753
    if (atom.type == MKTAG('s', 't', 'c', 'o')) {
754
        for(i=0; i<entries; i++) {
755
            sc->chunk_offsets[i] = get_be32(pb);
756
        }
757
    } else if (atom.type == MKTAG('c', 'o', '6', '4')) {
758
        for(i=0; i<entries; i++) {
759
            sc->chunk_offsets[i] = get_be64(pb);
760
        }
761
    } else
762
        return -1;
763 115329f1 Diego Biurrun
764 5ca1d879 Zdenek Kabelac
    return 0;
765
}
766
767
static int mov_read_stsd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
768
{
769
    AVStream *st = c->fc->streams[c->fc->nb_streams-1];
770 302c389e Michael Niedermayer
    MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
771 5ca1d879 Zdenek Kabelac
    int entries, frames_per_sample;
772
    uint32_t format;
773 53ffdd14 Roine Gustafsson
    uint8_t codec_name[32];
774 5ca1d879 Zdenek Kabelac
775 b595afaa Mike Melanson
    /* for palette traversal */
776
    int color_depth;
777
    int color_start;
778
    int color_count;
779
    int color_end;
780
    int color_index;
781
    int color_dec;
782
    int color_greyscale;
783
    unsigned char *color_table;
784
    int j;
785
    unsigned char r, g, b;
786
787 6cea494e Zdenek Kabelac
    get_byte(pb); /* version */
788
    get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
789
790
    entries = get_be32(pb);
791
792 891f64b3 joca@rixmail.se
    while(entries--) { //Parsing Sample description table
793 b6a17df4 Zdenek Kabelac
        enum CodecID id;
794 de23f234 Baptiste Coudurier
        MOV_atom_t a = { 0, 0, 0 };
795 3840147e Michael Niedermayer
        offset_t start_pos = url_ftell(pb);
796 bb270c08 Diego Biurrun
        int size = get_be32(pb); /* size */
797 6cea494e Zdenek Kabelac
        format = get_le32(pb); /* data format */
798 5cd62665 Zdenek Kabelac
799 6cea494e Zdenek Kabelac
        get_be32(pb); /* reserved */
800
        get_be16(pb); /* reserved */
801
        get_be16(pb); /* index */
802 0e7eed09 Fabrice Bellard
803 e7cc4b52 Baptiste Coudurier
        if (st->codec->codec_tag) {
804
            /* multiple fourcc, just skip for now */
805
            url_fskip(pb, size - (url_ftell(pb) - start_pos));
806
            continue;
807
        }
808
809 bb270c08 Diego Biurrun
        st->codec->codec_tag = format;
810 99487f42 Baptiste Coudurier
        id = codec_get_id(mov_audio_tags, format);
811 48855b26 Baptiste Coudurier
        if (st->codec->codec_type != CODEC_TYPE_VIDEO && id > 0) {
812 99487f42 Baptiste Coudurier
            st->codec->codec_type = CODEC_TYPE_AUDIO;
813 48855b26 Baptiste Coudurier
        } else if (st->codec->codec_type != CODEC_TYPE_AUDIO && /* do not overwrite codec type */
814
                   format && format != MKTAG('m', 'p', '4', 's')) { /* skip old asf mpeg4 tag */
815 de23f234 Baptiste Coudurier
            id = codec_get_id(mov_video_tags, format);
816 99487f42 Baptiste Coudurier
            if (id <= 0)
817 de23f234 Baptiste Coudurier
                id = codec_get_id(codec_bmp_tags, format);
818 99487f42 Baptiste Coudurier
            if (id > 0)
819
                st->codec->codec_type = CODEC_TYPE_VIDEO;
820
        }
821
822 a20da52c Baptiste Coudurier
        dprintf("size=%d 4CC= %c%c%c%c codec_type=%d\n",
823
                size,
824
                (format >> 0) & 0xff, (format >> 8) & 0xff, (format >> 16) & 0xff, (format >> 24) & 0xff,
825
                st->codec->codec_type);
826
827 99487f42 Baptiste Coudurier
        if(st->codec->codec_type==CODEC_TYPE_VIDEO) {
828 01f4895c Michael Niedermayer
            st->codec->codec_id = id;
829 6cea494e Zdenek Kabelac
            get_be16(pb); /* version */
830
            get_be16(pb); /* revision level */
831
            get_be32(pb); /* vendor */
832
            get_be32(pb); /* temporal quality */
833
            get_be32(pb); /* spacial quality */
834 3cb4ee51 Baptiste Coudurier
835
            st->codec->width = get_be16(pb); /* width */
836
            st->codec->height = get_be16(pb); /* height */
837
838 6cea494e Zdenek Kabelac
            get_be32(pb); /* horiz resolution */
839
            get_be32(pb); /* vert resolution */
840
            get_be32(pb); /* data size, always 0 */
841 5cd62665 Zdenek Kabelac
            frames_per_sample = get_be16(pb); /* frames per samples */
842 6cea494e Zdenek Kabelac
#ifdef DEBUG
843 bb270c08 Diego Biurrun
            av_log(NULL, AV_LOG_DEBUG, "frames/samples = %d\n", frames_per_sample);
844 6cea494e Zdenek Kabelac
#endif
845 576f1445 Baptiste Coudurier
            get_buffer(pb, codec_name, 32); /* codec name, pascal string (FIXME: true for mp4?) */
846
            if (codec_name[0] <= 31) {
847
                memcpy(st->codec->codec_name, &codec_name[1],codec_name[0]);
848
                st->codec->codec_name[codec_name[0]] = 0;
849
            }
850 5cd62665 Zdenek Kabelac
851 bb270c08 Diego Biurrun
            st->codec->bits_per_sample = get_be16(pb); /* depth */
852 01f4895c Michael Niedermayer
            st->codec->color_table_id = get_be16(pb); /* colortable id */
853 6cea494e Zdenek Kabelac
854 b595afaa Mike Melanson
            /* figure out the palette situation */
855 01f4895c Michael Niedermayer
            color_depth = st->codec->bits_per_sample & 0x1F;
856
            color_greyscale = st->codec->bits_per_sample & 0x20;
857 b595afaa Mike Melanson
858
            /* if the depth is 2, 4, or 8 bpp, file is palettized */
859 115329f1 Diego Biurrun
            if ((color_depth == 2) || (color_depth == 4) ||
860 b595afaa Mike Melanson
                (color_depth == 8)) {
861
862
                if (color_greyscale) {
863
864
                    /* compute the greyscale palette */
865
                    color_count = 1 << color_depth;
866
                    color_index = 255;
867
                    color_dec = 256 / (color_count - 1);
868
                    for (j = 0; j < color_count; j++) {
869
                        r = g = b = color_index;
870
                        c->palette_control.palette[j] =
871
                            (r << 16) | (g << 8) | (b);
872
                        color_index -= color_dec;
873
                        if (color_index < 0)
874
                            color_index = 0;
875
                    }
876
877 01f4895c Michael Niedermayer
                } else if (st->codec->color_table_id & 0x08) {
878 b595afaa Mike Melanson
879
                    /* if flag bit 3 is set, use the default palette */
880
                    color_count = 1 << color_depth;
881
                    if (color_depth == 2)
882 a90466f7 Michael Niedermayer
                        color_table = ff_qt_default_palette_4;
883 b595afaa Mike Melanson
                    else if (color_depth == 4)
884 a90466f7 Michael Niedermayer
                        color_table = ff_qt_default_palette_16;
885 b595afaa Mike Melanson
                    else
886 a90466f7 Michael Niedermayer
                        color_table = ff_qt_default_palette_256;
887 b595afaa Mike Melanson
888
                    for (j = 0; j < color_count; j++) {
889
                        r = color_table[j * 4 + 0];
890
                        g = color_table[j * 4 + 1];
891
                        b = color_table[j * 4 + 2];
892
                        c->palette_control.palette[j] =
893
                            (r << 16) | (g << 8) | (b);
894
                    }
895
896
                } else {
897
898
                    /* load the palette from the file */
899
                    color_start = get_be32(pb);
900
                    color_count = get_be16(pb);
901
                    color_end = get_be16(pb);
902
                    for (j = color_start; j <= color_end; j++) {
903
                        /* each R, G, or B component is 16 bits;
904
                         * only use the top 8 bits; skip alpha bytes
905
                         * up front */
906
                        get_byte(pb);
907
                        get_byte(pb);
908
                        r = get_byte(pb);
909
                        get_byte(pb);
910
                        g = get_byte(pb);
911
                        get_byte(pb);
912
                        b = get_byte(pb);
913
                        get_byte(pb);
914
                        c->palette_control.palette[j] =
915
                            (r << 16) | (g << 8) | (b);
916
                    }
917
                }
918
919 01f4895c Michael Niedermayer
                st->codec->palctrl = &c->palette_control;
920
                st->codec->palctrl->palette_changed = 1;
921 b595afaa Mike Melanson
            } else
922 01f4895c Michael Niedermayer
                st->codec->palctrl = NULL;
923 de23f234 Baptiste Coudurier
        } else if(st->codec->codec_type==CODEC_TYPE_AUDIO) {
924 b72708f8 Baptiste Coudurier
            int bits_per_sample;
925 de23f234 Baptiste Coudurier
            uint16_t version = get_be16(pb);
926 b595afaa Mike Melanson
927 99487f42 Baptiste Coudurier
            st->codec->codec_id = id;
928 de23f234 Baptiste Coudurier
            get_be16(pb); /* revision level */
929
            get_be32(pb); /* vendor */
930 6d6d7970 Mike Melanson
931 de23f234 Baptiste Coudurier
            st->codec->channels = get_be16(pb);             /* channel count */
932 986c2ccb Baptiste Coudurier
            dprintf("audio channels %d\n", st->codec->channels);
933 de23f234 Baptiste Coudurier
            st->codec->bits_per_sample = get_be16(pb);      /* sample size */
934
            /* do we need to force to 16 for AMR ? */
935
936
            /* handle specific s8 codec */
937
            get_be16(pb); /* compression id = 0*/
938
            get_be16(pb); /* packet size = 0 */
939
940
            st->codec->sample_rate = ((get_be32(pb) >> 16));
941
942
            switch (st->codec->codec_id) {
943 b72708f8 Baptiste Coudurier
            case CODEC_ID_PCM_S8:
944
            case CODEC_ID_PCM_U8:
945
                if (st->codec->bits_per_sample == 16)
946
                    st->codec->codec_id = CODEC_ID_PCM_S16BE;
947
                break;
948 0dd39bfe Baptiste Coudurier
            case CODEC_ID_PCM_S16LE:
949 de23f234 Baptiste Coudurier
            case CODEC_ID_PCM_S16BE:
950
                if (st->codec->bits_per_sample == 8)
951
                    st->codec->codec_id = CODEC_ID_PCM_S8;
952 0299a87c Baptiste Coudurier
                else if (st->codec->bits_per_sample == 24)
953
                    st->codec->codec_id = CODEC_ID_PCM_S24BE;
954 de23f234 Baptiste Coudurier
                break;
955
            default:
956
                break;
957 6d6d7970 Mike Melanson
            }
958 14342fd5 Johannes Carlsson
959 de23f234 Baptiste Coudurier
            //Read QT version 1 fields. In version 0 theese dont exist
960 152e9a43 Baptiste Coudurier
            dprintf("version =%d, isom =%d\n",version,c->isom);
961
            if(!c->isom) {
962 80c5b9a1 Baptiste Coudurier
                if(version==1) {
963
                    sc->sample_size_v1.den = get_be32(pb); /* samples per packet */
964
                    get_be32(pb); /* bytes per packet */
965
                    sc->sample_size_v1.num = get_be32(pb); /* bytes per frame */
966
                    get_be32(pb); /* bytes per sample */
967
                } else if(version==2) {
968
                    get_be32(pb); /* sizeof struct only */
969
                    st->codec->sample_rate = av_int2dbl(get_be64(pb)); /* float 64 */
970
                    st->codec->channels = get_be32(pb);
971
                    get_be32(pb); /* always 0x7F000000 */
972
                    get_be32(pb); /* bits per channel if sound is uncompressed */
973
                    get_be32(pb); /* lcpm format specific flag */
974
                    get_be32(pb); /* bytes per audio packet if constant */
975
                    get_be32(pb); /* lpcm frames per audio packet if constant */
976
                }
977 152e9a43 Baptiste Coudurier
            }
978 9770089d Baptiste Coudurier
979
            bits_per_sample = av_get_bits_per_sample(st->codec->codec_id);
980
            if (bits_per_sample) {
981
                st->codec->bits_per_sample = bits_per_sample;
982
                sc->sample_size = (bits_per_sample >> 3) * st->codec->channels;
983
            }
984 de23f234 Baptiste Coudurier
        } else {
985
            /* other codec type, just skip (rtp, mp4s, tmcd ...) */
986
            url_fskip(pb, size - (url_ftell(pb) - start_pos));
987 6cea494e Zdenek Kabelac
        }
988 de23f234 Baptiste Coudurier
        /* this will read extra atoms at the end (wave, alac, damr, avcC, SMI ...) */
989
        a.size = size - (url_ftell(pb) - start_pos);
990
        if (a.size > 8)
991
            mov_read_default(c, pb, a);
992
        else if (a.size > 0)
993
            url_fskip(pb, a.size);
994 6cea494e Zdenek Kabelac
    }
995 115329f1 Diego Biurrun
996 302c389e Michael Niedermayer
    if(st->codec->codec_type==CODEC_TYPE_AUDIO && st->codec->sample_rate==0 && sc->time_scale>1) {
997
        st->codec->sample_rate= sc->time_scale;
998
    }
999 e31bd3e3 Baptiste Coudurier
1000 d00f8e17 Baptiste Coudurier
    /* special codec parameters handling */
1001 e31bd3e3 Baptiste Coudurier
    switch (st->codec->codec_id) {
1002 d00f8e17 Baptiste Coudurier
#ifdef CONFIG_H261_DECODER
1003
    case CODEC_ID_H261:
1004
#endif
1005
#ifdef CONFIG_H263_DECODER
1006
    case CODEC_ID_H263:
1007
#endif
1008
#ifdef CONFIG_MPEG4_DECODER
1009
    case CODEC_ID_MPEG4:
1010
#endif
1011
        st->codec->width= 0; /* let decoder init width/height */
1012
        st->codec->height= 0;
1013
        break;
1014 2eed5a46 Diego Biurrun
#ifdef CONFIG_LIBFAAD
1015 e31bd3e3 Baptiste Coudurier
    case CODEC_ID_AAC:
1016 ec04d244 Baptiste Coudurier
#endif
1017 3ed73c46 Baptiste Coudurier
#ifdef CONFIG_VORBIS_DECODER
1018
    case CODEC_ID_VORBIS:
1019
#endif
1020 e31bd3e3 Baptiste Coudurier
    case CODEC_ID_MP3ON4:
1021
        st->codec->sample_rate= 0; /* let decoder init parameters properly */
1022
        break;
1023 989ac5a6 Baptiste Coudurier
#ifdef CONFIG_DV_DEMUXER
1024 b60c0454 Baptiste Coudurier
    case CODEC_ID_DVAUDIO:
1025
        c->dv_fctx = av_alloc_format_context();
1026
        c->dv_demux = dv_init_demux(c->dv_fctx);
1027
        if (!c->dv_demux) {
1028
            av_log(c->fc, AV_LOG_ERROR, "dv demux context init error\n");
1029
            return -1;
1030
        }
1031
        sc->dv_audio_container = 1;
1032
        st->codec->codec_id = CODEC_ID_PCM_S16LE;
1033
        break;
1034 989ac5a6 Baptiste Coudurier
#endif
1035 b95319a2 Baptiste Coudurier
    /* no ifdef since parameters are always those */
1036
    case CODEC_ID_AMR_WB:
1037
        st->codec->sample_rate= 16000;
1038
        st->codec->channels= 1; /* really needed */
1039
        break;
1040
    case CODEC_ID_AMR_NB:
1041
        st->codec->sample_rate= 8000;
1042
        st->codec->channels= 1; /* really needed */
1043
        break;
1044 a41104f8 Michael Niedermayer
    case CODEC_ID_MP2:
1045 95a07973 Baptiste Coudurier
        st->codec->codec_type = CODEC_TYPE_AUDIO; /* force type after stsd for m1a hdlr */
1046 a41104f8 Michael Niedermayer
        st->need_parsing = 1;
1047
        break;
1048 e31bd3e3 Baptiste Coudurier
    default:
1049
        break;
1050
    }
1051 5cd62665 Zdenek Kabelac
1052 6cea494e Zdenek Kabelac
    return 0;
1053
}
1054
1055 5ca1d879 Zdenek Kabelac
static int mov_read_stsc(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1056 6cea494e Zdenek Kabelac
{
1057 5ca1d879 Zdenek Kabelac
    AVStream *st = c->fc->streams[c->fc->nb_streams-1];
1058
    MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
1059 568e18b1 Michael Niedermayer
    unsigned int i, entries;
1060 b6a17df4 Zdenek Kabelac
1061 6cea494e Zdenek Kabelac
    get_byte(pb); /* version */
1062
    get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
1063
1064
    entries = get_be32(pb);
1065 115329f1 Diego Biurrun
1066 568e18b1 Michael Niedermayer
    if(entries >= UINT_MAX / sizeof(MOV_sample_to_chunk_tbl))
1067
        return -1;
1068 115329f1 Diego Biurrun
1069 3ffe3793 François Revol
#ifdef DEBUG
1070 baf25c9d Gael Chardon
av_log(NULL, AV_LOG_DEBUG, "track[%i].stsc.entries = %i\n", c->fc->nb_streams-1, entries);
1071 3ffe3793 François Revol
#endif
1072 6cea494e Zdenek Kabelac
    sc->sample_to_chunk_sz = entries;
1073 9a630c25 Baptiste Coudurier
    sc->sample_to_chunk = av_malloc(entries * sizeof(MOV_sample_to_chunk_tbl));
1074 b6a17df4 Zdenek Kabelac
    if (!sc->sample_to_chunk)
1075
        return -1;
1076 6cea494e Zdenek Kabelac
    for(i=0; i<entries; i++) {
1077
        sc->sample_to_chunk[i].first = get_be32(pb);
1078
        sc->sample_to_chunk[i].count = get_be32(pb);
1079
        sc->sample_to_chunk[i].id = get_be32(pb);
1080
    }
1081
    return 0;
1082
}
1083
1084 247d56f5 Brian Becker
static int mov_read_stss(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1085
{
1086
    AVStream *st = c->fc->streams[c->fc->nb_streams-1];
1087
    MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
1088 568e18b1 Michael Niedermayer
    unsigned int i, entries;
1089 247d56f5 Brian Becker
1090
    get_byte(pb); /* version */
1091
    get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
1092
1093
    entries = get_be32(pb);
1094 115329f1 Diego Biurrun
1095 568e18b1 Michael Niedermayer
    if(entries >= UINT_MAX / sizeof(long))
1096
        return -1;
1097 115329f1 Diego Biurrun
1098 247d56f5 Brian Becker
    sc->keyframe_count = entries;
1099
#ifdef DEBUG
1100 e809d7e5 Baptiste Coudurier
    av_log(NULL, AV_LOG_DEBUG, "keyframe_count = %d\n", sc->keyframe_count);
1101 247d56f5 Brian Becker
#endif
1102 9a630c25 Baptiste Coudurier
    sc->keyframes = av_malloc(entries * sizeof(long));
1103 247d56f5 Brian Becker
    if (!sc->keyframes)
1104
        return -1;
1105
    for(i=0; i<entries; i++) {
1106
        sc->keyframes[i] = get_be32(pb);
1107
#ifdef DEBUG
1108
/*        av_log(NULL, AV_LOG_DEBUG, "keyframes[]=%ld\n", sc->keyframes[i]); */
1109
#endif
1110
    }
1111
    return 0;
1112
}
1113
1114 5ca1d879 Zdenek Kabelac
static int mov_read_stsz(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1115 6cea494e Zdenek Kabelac
{
1116 5ca1d879 Zdenek Kabelac
    AVStream *st = c->fc->streams[c->fc->nb_streams-1];
1117
    MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
1118 b72708f8 Baptiste Coudurier
    unsigned int i, entries, sample_size;
1119 b6a17df4 Zdenek Kabelac
1120 6cea494e Zdenek Kabelac
    get_byte(pb); /* version */
1121
    get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
1122 5cd62665 Zdenek Kabelac
1123 b72708f8 Baptiste Coudurier
    sample_size = get_be32(pb);
1124
    if (!sc->sample_size) /* do not overwrite value computed in stsd */
1125
        sc->sample_size = sample_size;
1126 6cea494e Zdenek Kabelac
    entries = get_be32(pb);
1127 568e18b1 Michael Niedermayer
    if(entries >= UINT_MAX / sizeof(long))
1128
        return -1;
1129
1130 6cea494e Zdenek Kabelac
    sc->sample_count = entries;
1131 b72708f8 Baptiste Coudurier
    if (sample_size)
1132
        return 0;
1133
1134 0147f198 François Revol
#ifdef DEBUG
1135 e809d7e5 Baptiste Coudurier
    av_log(NULL, AV_LOG_DEBUG, "sample_size = %d sample_count = %d\n", sc->sample_size, sc->sample_count);
1136 0147f198 François Revol
#endif
1137 9a630c25 Baptiste Coudurier
    sc->sample_sizes = av_malloc(entries * sizeof(long));
1138 b6a17df4 Zdenek Kabelac
    if (!sc->sample_sizes)
1139
        return -1;
1140 6cea494e Zdenek Kabelac
    for(i=0; i<entries; i++) {
1141
        sc->sample_sizes[i] = get_be32(pb);
1142
#ifdef DEBUG
1143 7dbab4a9 François Revol
        av_log(NULL, AV_LOG_DEBUG, "sample_sizes[]=%ld\n", sc->sample_sizes[i]);
1144 6cea494e Zdenek Kabelac
#endif
1145
    }
1146
    return 0;
1147
}
1148
1149 5ca1d879 Zdenek Kabelac
static int mov_read_stts(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1150 0147f198 François Revol
{
1151 5ca1d879 Zdenek Kabelac
    AVStream *st = c->fc->streams[c->fc->nb_streams-1];
1152 cd7352d5 Michael Niedermayer
    MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
1153 568e18b1 Michael Niedermayer
    unsigned int i, entries;
1154 d957696f Michael Niedermayer
    int64_t duration=0;
1155
    int64_t total_sample_count=0;
1156 b6a17df4 Zdenek Kabelac
1157 0147f198 François Revol
    get_byte(pb); /* version */
1158
    get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
1159
    entries = get_be32(pb);
1160 cd461d48 Michael Niedermayer
    if(entries >= UINT_MAX / sizeof(Time2Sample))
1161 568e18b1 Michael Niedermayer
        return -1;
1162 891f64b3 joca@rixmail.se
1163 cd7352d5 Michael Niedermayer
    sc->stts_count = entries;
1164
    sc->stts_data = av_malloc(entries * sizeof(Time2Sample));
1165 891f64b3 joca@rixmail.se
1166 3ffe3793 François Revol
#ifdef DEBUG
1167 baf25c9d Gael Chardon
av_log(NULL, AV_LOG_DEBUG, "track[%i].stts.entries = %i\n", c->fc->nb_streams-1, entries);
1168 3ffe3793 François Revol
#endif
1169 cd7352d5 Michael Niedermayer
1170
    sc->time_rate=0;
1171
1172 0147f198 François Revol
    for(i=0; i<entries; i++) {
1173 cd461d48 Michael Niedermayer
        int sample_duration;
1174
        int sample_count;
1175 0147f198 François Revol
1176 891f64b3 joca@rixmail.se
        sample_count=get_be32(pb);
1177 0147f198 François Revol
        sample_duration = get_be32(pb);
1178 cd7352d5 Michael Niedermayer
        sc->stts_data[i].count= sample_count;
1179
        sc->stts_data[i].duration= sample_duration;
1180
1181
        sc->time_rate= ff_gcd(sc->time_rate, sample_duration);
1182 961e0ccd Michael Niedermayer
1183 4e5ef14f Baptiste Coudurier
        dprintf("sample_count=%d, sample_duration=%d\n",sample_count,sample_duration);
1184
1185 7e815047 Baptiste Coudurier
        duration+=(int64_t)sample_duration*sample_count;
1186 891f64b3 joca@rixmail.se
        total_sample_count+=sample_count;
1187
    }
1188
1189 961e0ccd Michael Niedermayer
    st->nb_frames= total_sample_count;
1190
    if(duration)
1191
        st->duration= duration;
1192 0147f198 François Revol
    return 0;
1193
}
1194
1195 c4ac052b Michael Niedermayer
static int mov_read_ctts(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1196
{
1197 70a61ed4 Michael Niedermayer
    AVStream *st = c->fc->streams[c->fc->nb_streams-1];
1198
    MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
1199 c4ac052b Michael Niedermayer
    unsigned int i, entries;
1200
1201
    get_byte(pb); /* version */
1202
    get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
1203
    entries = get_be32(pb);
1204
    if(entries >= UINT_MAX / sizeof(Time2Sample))
1205
        return -1;
1206
1207 70a61ed4 Michael Niedermayer
    sc->ctts_count = entries;
1208
    sc->ctts_data = av_malloc(entries * sizeof(Time2Sample));
1209 c4ac052b Michael Niedermayer
1210 4e5ef14f Baptiste Coudurier
    dprintf("track[%i].ctts.entries = %i\n", c->fc->nb_streams-1, entries);
1211
1212 c4ac052b Michael Niedermayer
    for(i=0; i<entries; i++) {
1213 70a61ed4 Michael Niedermayer
        int count    =get_be32(pb);
1214
        int duration =get_be32(pb);
1215
1216 b0519015 Baptiste Coudurier
        if (duration < 0) {
1217
            av_log(c->fc, AV_LOG_ERROR, "negative ctts, ignoring\n");
1218
            sc->ctts_count = 0;
1219
            url_fskip(pb, 8 * (entries - i - 1));
1220
            break;
1221
        }
1222 70a61ed4 Michael Niedermayer
        sc->ctts_data[i].count   = count;
1223
        sc->ctts_data[i].duration= duration;
1224
1225
        sc->time_rate= ff_gcd(sc->time_rate, duration);
1226 c4ac052b Michael Niedermayer
    }
1227
    return 0;
1228
}
1229
1230 5ca1d879 Zdenek Kabelac
static int mov_read_trak(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1231
{
1232
    AVStream *st;
1233
    MOVStreamContext *sc;
1234
1235
    st = av_new_stream(c->fc, c->fc->nb_streams);
1236
    if (!st) return -2;
1237 9a630c25 Baptiste Coudurier
    sc = av_mallocz(sizeof(MOVStreamContext));
1238 5ca1d879 Zdenek Kabelac
    if (!sc) {
1239 bb270c08 Diego Biurrun
        av_free(st);
1240 5ca1d879 Zdenek Kabelac
        return -1;
1241
    }
1242
1243
    st->priv_data = sc;
1244 05edc1a7 Baptiste Coudurier
    st->codec->codec_type = CODEC_TYPE_DATA;
1245 25c4950e Fabrice Bellard
    st->start_time = 0; /* XXX: check */
1246 5ca1d879 Zdenek Kabelac
    c->streams[c->fc->nb_streams-1] = sc;
1247
1248
    return mov_read_default(c, pb, atom);
1249
}
1250
1251
static int mov_read_tkhd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1252
{
1253 f444b977 Baptiste Coudurier
    AVStream *st = c->fc->streams[c->fc->nb_streams-1];
1254
    int version = get_byte(pb);
1255 5ca1d879 Zdenek Kabelac
1256
    get_byte(pb); get_byte(pb);
1257
    get_byte(pb); /* flags */
1258
    /*
1259
    MOV_TRACK_ENABLED 0x0001
1260
    MOV_TRACK_IN_MOVIE 0x0002
1261
    MOV_TRACK_IN_PREVIEW 0x0004
1262
    MOV_TRACK_IN_POSTER 0x0008
1263
    */
1264
1265 1175561e Baptiste Coudurier
    if (version == 1) {
1266
        get_be64(pb);
1267
        get_be64(pb);
1268
    } else {
1269
        get_be32(pb); /* creation time */
1270
        get_be32(pb); /* modification time */
1271
    }
1272 5ca1d879 Zdenek Kabelac
    st->id = (int)get_be32(pb); /* track id (NOT 0 !)*/
1273
    get_be32(pb); /* reserved */
1274 25c4950e Fabrice Bellard
    st->start_time = 0; /* check */
1275 1175561e Baptiste Coudurier
    (version == 1) ? get_be64(pb) : get_be32(pb); /* highlevel (considering edits) duration in movie timebase */
1276 5ca1d879 Zdenek Kabelac
    get_be32(pb); /* reserved */
1277
    get_be32(pb); /* reserved */
1278
1279
    get_be16(pb); /* layer */
1280
    get_be16(pb); /* alternate group */
1281
    get_be16(pb); /* volume */
1282
    get_be16(pb); /* reserved */
1283
1284
    url_fskip(pb, 36); /* display matrix */
1285
1286
    /* those are fixed-point */
1287 c3daf8d8 Baptiste Coudurier
    get_be32(pb); /* track width */
1288
    get_be32(pb); /* track height */
1289 5ca1d879 Zdenek Kabelac
1290
    return 0;
1291
}
1292
1293
/* this atom should be null (from specs), but some buggy files put the 'moov' atom inside it... */
1294
/* like the files created with Adobe Premiere 5.0, for samples see */
1295
/* http://graphics.tudelft.nl/~wouter/publications/soundtests/ */
1296
static int mov_read_wide(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1297
{
1298
    int err;
1299
1300
    if (atom.size < 8)
1301
        return 0; /* continue */
1302
    if (get_be32(pb) != 0) { /* 0 sized mdat atom... use the 'wide' atom size */
1303
        url_fskip(pb, atom.size - 4);
1304
        return 0;
1305
    }
1306
    atom.type = get_le32(pb);
1307
    atom.offset += 8;
1308
    atom.size -= 8;
1309 fd6e513e Zdenek Kabelac
    if (atom.type != MKTAG('m', 'd', 'a', 't')) {
1310 5ca1d879 Zdenek Kabelac
        url_fskip(pb, atom.size);
1311
        return 0;
1312
    }
1313
    err = mov_read_mdat(c, pb, atom);
1314
    return err;
1315
}
1316
1317
static int mov_read_cmov(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1318 0147f198 François Revol
{
1319 d966b2f0 Baptiste Coudurier
#ifdef CONFIG_ZLIB
1320 0147f198 François Revol
    ByteIOContext ctx;
1321 b6a17df4 Zdenek Kabelac
    uint8_t *cmov_data;
1322
    uint8_t *moov_data; /* uncompressed data */
1323 0147f198 François Revol
    long cmov_len, moov_len;
1324
    int ret;
1325 b6a17df4 Zdenek Kabelac
1326 0147f198 François Revol
    get_be32(pb); /* dcom atom */
1327
    if (get_le32(pb) != MKTAG( 'd', 'c', 'o', 'm' ))
1328
        return -1;
1329
    if (get_le32(pb) != MKTAG( 'z', 'l', 'i', 'b' )) {
1330 4e5ef14f Baptiste Coudurier
        av_log(NULL, AV_LOG_ERROR, "unknown compression for cmov atom !");
1331 0147f198 François Revol
        return -1;
1332
    }
1333
    get_be32(pb); /* cmvd atom */
1334
    if (get_le32(pb) != MKTAG( 'c', 'm', 'v', 'd' ))
1335
        return -1;
1336
    moov_len = get_be32(pb); /* uncompressed size */
1337 5ca1d879 Zdenek Kabelac
    cmov_len = atom.size - 6 * 4;
1338 5cd62665 Zdenek Kabelac
1339 9a630c25 Baptiste Coudurier
    cmov_data = av_malloc(cmov_len);
1340 0147f198 François Revol
    if (!cmov_data)
1341
        return -1;
1342 9a630c25 Baptiste Coudurier
    moov_data = av_malloc(moov_len);
1343 0147f198 François Revol
    if (!moov_data) {
1344
        av_free(cmov_data);
1345
        return -1;
1346
    }
1347
    get_buffer(pb, cmov_data, cmov_len);
1348 b6a17df4 Zdenek Kabelac
    if(uncompress (moov_data, (uLongf *) &moov_len, (const Bytef *)cmov_data, cmov_len) != Z_OK)
1349 0147f198 François Revol
        return -1;
1350 942f3bb5 Michael Niedermayer
    if(init_put_byte(&ctx, moov_data, moov_len, 0, NULL, NULL, NULL, NULL) != 0)
1351 0147f198 François Revol
        return -1;
1352 5ca1d879 Zdenek Kabelac
    atom.type = MKTAG( 'm', 'o', 'o', 'v' );
1353
    atom.offset = 0;
1354
    atom.size = moov_len;
1355 9ed83b0a Zdenek Kabelac
#ifdef DEBUG
1356 dbb4f00a Michael Niedermayer
//    { int fd = open("/tmp/uncompheader.mov", O_WRONLY | O_CREAT); write(fd, moov_data, moov_len); close(fd); }
1357 9ed83b0a Zdenek Kabelac
#endif
1358 5ca1d879 Zdenek Kabelac
    ret = mov_read_default(c, &ctx, atom);
1359 0147f198 François Revol
    av_free(moov_data);
1360
    av_free(cmov_data);
1361
    return ret;
1362 d966b2f0 Baptiste Coudurier
#else
1363
    av_log(c->fc, AV_LOG_ERROR, "this file requires zlib support compiled in\n");
1364
    return -1;
1365 0147f198 François Revol
#endif
1366 d966b2f0 Baptiste Coudurier
}
1367 0147f198 François Revol
1368 baf25c9d Gael Chardon
/* edit list atom */
1369
static int mov_read_elst(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1370
{
1371 e0977c80 Baptiste Coudurier
    int i, edit_count;
1372
1373
    get_byte(pb); /* version */
1374
    get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
1375
    edit_count= c->streams[c->fc->nb_streams-1]->edit_count = get_be32(pb);     /* entries */
1376
1377
    for(i=0; i<edit_count; i++){
1378
        get_be32(pb); /* Track duration */
1379
        get_be32(pb); /* Media time */
1380
        get_be32(pb); /* Media rate */
1381
    }
1382
    dprintf("track[%i].edit_count = %i\n", c->fc->nb_streams-1, c->streams[c->fc->nb_streams-1]->edit_count);
1383
    return 0;
1384 baf25c9d Gael Chardon
}
1385
1386 6cea494e Zdenek Kabelac
static const MOVParseTableEntry mov_default_parse_table[] = {
1387
/* mp4 atoms */
1388 5ca1d879 Zdenek Kabelac
{ MKTAG( 'c', 'o', '6', '4' ), mov_read_stco },
1389 c4ac052b Michael Niedermayer
{ MKTAG( 'c', 't', 't', 's' ), mov_read_ctts }, /* composition time to sample */
1390 5ca1d879 Zdenek Kabelac
{ MKTAG( 'e', 'd', 't', 's' ), mov_read_default },
1391 58e555d4 Michael Niedermayer
{ MKTAG( 'e', 'l', 's', 't' ), mov_read_elst },
1392 de23f234 Baptiste Coudurier
{ MKTAG( 'e', 'n', 'd', 'a' ), mov_read_enda },
1393 4ea28253 Baptiste Coudurier
{ MKTAG( 'f', 't', 'y', 'p' ), mov_read_ftyp },
1394 5ca1d879 Zdenek Kabelac
{ MKTAG( 'h', 'd', 'l', 'r' ), mov_read_hdlr },
1395 fc5188f3 Baptiste Coudurier
{ MKTAG( 'j', 'p', '2', 'h' ), mov_read_jp2h },
1396 5ca1d879 Zdenek Kabelac
{ MKTAG( 'm', 'd', 'a', 't' ), mov_read_mdat },
1397
{ MKTAG( 'm', 'd', 'h', 'd' ), mov_read_mdhd },
1398
{ MKTAG( 'm', 'd', 'i', 'a' ), mov_read_default },
1399
{ MKTAG( 'm', 'i', 'n', 'f' ), mov_read_default },
1400
{ MKTAG( 'm', 'o', 'o', 'v' ), mov_read_moov },
1401
{ MKTAG( 'm', 'v', 'h', 'd' ), mov_read_mvhd },
1402 169eb021 Mike Melanson
{ MKTAG( 'S', 'M', 'I', ' ' ), mov_read_smi }, /* Sorenson extension ??? */
1403 de23f234 Baptiste Coudurier
{ MKTAG( 'a', 'l', 'a', 'c' ), mov_read_alac }, /* alac specific atom */
1404 115329f1 Diego Biurrun
{ MKTAG( 'a', 'v', 'c', 'C' ), mov_read_avcC },
1405 5ca1d879 Zdenek Kabelac
{ MKTAG( 's', 't', 'b', 'l' ), mov_read_default },
1406
{ MKTAG( 's', 't', 'c', 'o' ), mov_read_stco },
1407
{ MKTAG( 's', 't', 's', 'c' ), mov_read_stsc },
1408
{ MKTAG( 's', 't', 's', 'd' ), mov_read_stsd }, /* sample description */
1409 247d56f5 Brian Becker
{ MKTAG( 's', 't', 's', 's' ), mov_read_stss }, /* sync sample */
1410 5ca1d879 Zdenek Kabelac
{ MKTAG( 's', 't', 's', 'z' ), mov_read_stsz }, /* sample size */
1411
{ MKTAG( 's', 't', 't', 's' ), mov_read_stts },
1412
{ MKTAG( 't', 'k', 'h', 'd' ), mov_read_tkhd }, /* track header */
1413
{ MKTAG( 't', 'r', 'a', 'k' ), mov_read_trak },
1414 d9b1c197 Roberto Togni
{ MKTAG( 'w', 'a', 'v', 'e' ), mov_read_wave },
1415 5ca1d879 Zdenek Kabelac
{ MKTAG( 'c', 't', 'a', 'b' ), mov_read_ctab },
1416
{ MKTAG( 'e', 's', 'd', 's' ), mov_read_esds },
1417
{ MKTAG( 'w', 'i', 'd', 'e' ), mov_read_wide }, /* place holder */
1418
{ MKTAG( 'c', 'm', 'o', 'v' ), mov_read_cmov },
1419 b59cb456 Baptiste Coudurier
{ 0L, NULL }
1420 6cea494e Zdenek Kabelac
};
1421
1422
static void mov_free_stream_context(MOVStreamContext *sc)
1423
{
1424
    if(sc) {
1425 115329f1 Diego Biurrun
        av_freep(&sc->ctts_data);
1426 c4ac052b Michael Niedermayer
        av_freep(&sc);
1427 6cea494e Zdenek Kabelac
    }
1428
}
1429
1430 b6a17df4 Zdenek Kabelac
/* XXX: is it sufficient ? */
1431 c9a65ca8 Fabrice Bellard
static int mov_probe(AVProbeData *p)
1432
{
1433 0e7eed09 Fabrice Bellard
    unsigned int offset;
1434
    uint32_t tag;
1435 2497479f François Revol
    int score = 0;
1436 3ffe3793 François Revol
1437 c9a65ca8 Fabrice Bellard
    /* check file header */
1438
    if (p->buf_size <= 12)
1439
        return 0;
1440 0e7eed09 Fabrice Bellard
    offset = 0;
1441
    for(;;) {
1442
        /* ignore invalid offset */
1443
        if ((offset + 8) > (unsigned int)p->buf_size)
1444 2497479f François Revol
            return score;
1445 fead30d4 Alex Beregszaszi
        tag = AV_RL32(p->buf + offset + 4);
1446 0e7eed09 Fabrice Bellard
        switch(tag) {
1447 2497479f François Revol
        /* check for obvious tags */
1448 fc5188f3 Baptiste Coudurier
        case MKTAG( 'j', 'P', ' ', ' ' ): /* jpeg 2000 signature */
1449 0e7eed09 Fabrice Bellard
        case MKTAG( 'm', 'o', 'o', 'v' ):
1450 8b879f18 François Revol
        case MKTAG( 'm', 'd', 'a', 't' ):
1451
        case MKTAG( 'p', 'n', 'o', 't' ): /* detect movs with preview pics like ew.mov and april.mov */
1452 bc634f6f Zdenek Kabelac
        case MKTAG( 'u', 'd', 't', 'a' ): /* Packet Video PVAuthor adds this and a lot of more junk */
1453 3ffe3793 François Revol
            return AVPROBE_SCORE_MAX;
1454 2497479f François Revol
        /* those are more common words, so rate then a bit less */
1455
        case MKTAG( 'w', 'i', 'd', 'e' ):
1456
        case MKTAG( 'f', 'r', 'e', 'e' ):
1457
        case MKTAG( 'j', 'u', 'n', 'k' ):
1458
        case MKTAG( 'p', 'i', 'c', 't' ):
1459
            return AVPROBE_SCORE_MAX - 5;
1460 0e7eed09 Fabrice Bellard
        case MKTAG( 'f', 't', 'y', 'p' ):
1461 5ca1d879 Zdenek Kabelac
        case MKTAG( 's', 'k', 'i', 'p' ):
1462 0d23cb84 François Revol
        case MKTAG( 'u', 'u', 'i', 'd' ):
1463 fead30d4 Alex Beregszaszi
            offset = AV_RB32(p->buf+offset) + offset;
1464 2497479f François Revol
            /* if we only find those cause probedata is too small at least rate them */
1465
            score = AVPROBE_SCORE_MAX - 50;
1466 0e7eed09 Fabrice Bellard
            break;
1467
        default:
1468
            /* unrecognized tag */
1469 2497479f François Revol
            return score;
1470 0e7eed09 Fabrice Bellard
        }
1471 3ffe3793 François Revol
    }
1472 2497479f François Revol
    return score;
1473 c9a65ca8 Fabrice Bellard
}
1474
1475 b72708f8 Baptiste Coudurier
static void mov_build_index(MOVContext *mov, AVStream *st)
1476
{
1477
    MOVStreamContext *sc = st->priv_data;
1478
    offset_t current_offset;
1479
    int64_t current_dts = 0;
1480 01aa1937 Baptiste Coudurier
    unsigned int stts_index = 0;
1481
    unsigned int stsc_index = 0;
1482
    unsigned int stss_index = 0;
1483
    unsigned int i, j, k;
1484 b72708f8 Baptiste Coudurier
1485 b60c0454 Baptiste Coudurier
    if (sc->sample_sizes || st->codec->codec_type == CODEC_TYPE_VIDEO || sc->dv_audio_container) {
1486 01aa1937 Baptiste Coudurier
        unsigned int current_sample = 0;
1487
        unsigned int stts_sample = 0;
1488
        unsigned int keyframe, sample_size;
1489
        unsigned int distance = 0;
1490 b72708f8 Baptiste Coudurier
1491
        st->nb_frames = sc->sample_count;
1492
        for (i = 0; i < sc->chunk_count; i++) {
1493
            current_offset = sc->chunk_offsets[i];
1494
            if (stsc_index + 1 < sc->sample_to_chunk_sz && i + 1 == sc->sample_to_chunk[stsc_index + 1].first)
1495
                stsc_index++;
1496
            for (j = 0; j < sc->sample_to_chunk[stsc_index].count; j++) {
1497 64934877 Baptiste Coudurier
                if (current_sample >= sc->sample_count) {
1498
                    av_log(mov->fc, AV_LOG_ERROR, "wrong sample count\n");
1499
                    goto out;
1500
                }
1501 b72708f8 Baptiste Coudurier
                keyframe = !sc->keyframe_count || current_sample + 1 == sc->keyframes[stss_index];
1502
                if (keyframe) {
1503
                    distance = 0;
1504
                    if (stss_index + 1 < sc->keyframe_count)
1505
                        stss_index++;
1506
                }
1507
                sample_size = sc->sample_size > 0 ? sc->sample_size : sc->sample_sizes[current_sample];
1508 949b1a13 Steve L'Homme
                dprintf("AVIndex stream %d, sample %d, offset %"PRIx64", dts %"PRId64", size %d, distance %d, keyframe %d\n",
1509 b72708f8 Baptiste Coudurier
                        st->index, current_sample, current_offset, current_dts, sample_size, distance, keyframe);
1510
                av_add_index_entry(st, current_offset, current_dts, sample_size, distance, keyframe ? AVINDEX_KEYFRAME : 0);
1511
                current_offset += sample_size;
1512
                assert(sc->stts_data[stts_index].duration % sc->time_rate == 0);
1513
                current_dts += sc->stts_data[stts_index].duration / sc->time_rate;
1514
                distance++;
1515
                stts_sample++;
1516 64934877 Baptiste Coudurier
                current_sample++;
1517 b72708f8 Baptiste Coudurier
                if (stts_index + 1 < sc->stts_count && stts_sample == sc->stts_data[stts_index].count) {
1518
                    stts_sample = 0;
1519
                    stts_index++;
1520
                }
1521
            }
1522
        }
1523
    } else { /* read whole chunk */
1524 01aa1937 Baptiste Coudurier
        unsigned int chunk_samples, chunk_size, chunk_duration;
1525 b72708f8 Baptiste Coudurier
1526
        for (i = 0; i < sc->chunk_count; i++) {
1527
            current_offset = sc->chunk_offsets[i];
1528
            if (stsc_index + 1 < sc->sample_to_chunk_sz && i + 1 == sc->sample_to_chunk[stsc_index + 1].first)
1529
                stsc_index++;
1530
            chunk_samples = sc->sample_to_chunk[stsc_index].count;
1531
            /* get chunk size */
1532 c61900c6 Baptiste Coudurier
            if (sc->sample_size > 1 || st->codec->codec_id == CODEC_ID_PCM_U8 || st->codec->codec_id == CODEC_ID_PCM_S8)
1533 b72708f8 Baptiste Coudurier
                chunk_size = chunk_samples * sc->sample_size;
1534
            else if (sc->sample_size_v1.den > 0 && (chunk_samples * sc->sample_size_v1.num % sc->sample_size_v1.den == 0))
1535
                chunk_size = chunk_samples * sc->sample_size_v1.num / sc->sample_size_v1.den;
1536
            else { /* workaround to find nearest next chunk offset */
1537
                chunk_size = INT_MAX;
1538
                for (j = 0; j < mov->total_streams; j++) {
1539
                    MOVStreamContext *msc = mov->streams[j];
1540
1541
                    for (k = msc->next_chunk; k < msc->chunk_count; k++) {
1542
                        if (msc->chunk_offsets[k] > current_offset && msc->chunk_offsets[k] - current_offset < chunk_size) {
1543
                            chunk_size = msc->chunk_offsets[k] - current_offset;
1544
                            msc->next_chunk = k;
1545
                            break;
1546
                        }
1547
                    }
1548
                }
1549
                /* check for last chunk */
1550
                if (chunk_size == INT_MAX)
1551
                    for (j = 0; j < mov->mdat_count; j++) {
1552 949b1a13 Steve L'Homme
                        dprintf("mdat %d, offset %"PRIx64", size %"PRId64", current offset %"PRIx64"\n",
1553 b72708f8 Baptiste Coudurier
                                j, mov->mdat_list[j].offset, mov->mdat_list[j].size, current_offset);
1554
                        if (mov->mdat_list[j].offset <= current_offset && mov->mdat_list[j].offset + mov->mdat_list[j].size > current_offset)
1555
                            chunk_size = mov->mdat_list[j].offset + mov->mdat_list[j].size - current_offset;
1556
                    }
1557
                assert(chunk_size != INT_MAX);
1558
                for (j = 0; j < mov->total_streams; j++) {
1559
                    mov->streams[j]->next_chunk = 0;
1560
                }
1561
            }
1562
            av_add_index_entry(st, current_offset, current_dts, chunk_size, 0, AVINDEX_KEYFRAME);
1563
            /* get chunk duration */
1564
            chunk_duration = 0;
1565
            while (chunk_samples > 0) {
1566
                if (chunk_samples < sc->stts_data[stts_index].count) {
1567
                    chunk_duration += sc->stts_data[stts_index].duration * chunk_samples;
1568
                    sc->stts_data[stts_index].count -= chunk_samples;
1569
                    break;
1570
                } else {
1571
                    chunk_duration += sc->stts_data[stts_index].duration * chunk_samples;
1572
                    chunk_samples -= sc->stts_data[stts_index].count;
1573
                    if (stts_index + 1 < sc->stts_count) {
1574
                        stts_index++;
1575
                    }
1576
                }
1577
            }
1578 949b1a13 Steve L'Homme
            dprintf("AVIndex stream %d, chunk %d, offset %"PRIx64", dts %"PRId64", size %d, duration %d\n",
1579 b72708f8 Baptiste Coudurier
                    st->index, i, current_offset, current_dts, chunk_size, chunk_duration);
1580
            assert(chunk_duration % sc->time_rate == 0);
1581
            current_dts += chunk_duration / sc->time_rate;
1582
        }
1583
    }
1584 64934877 Baptiste Coudurier
 out:
1585 1f1890c7 Baptiste Coudurier
    /* adjust sample count to avindex entries */
1586
    sc->sample_count = st->nb_index_entries;
1587 b72708f8 Baptiste Coudurier
}
1588
1589 a266644f Zdenek Kabelac
static int mov_read_header(AVFormatContext *s, AVFormatParameters *ap)
1590 6cea494e Zdenek Kabelac
{
1591 b6a17df4 Zdenek Kabelac
    MOVContext *mov = (MOVContext *) s->priv_data;
1592 6cea494e Zdenek Kabelac
    ByteIOContext *pb = &s->pb;
1593 05edc1a7 Baptiste Coudurier
    int i, err;
1594 5ca1d879 Zdenek Kabelac
    MOV_atom_t atom = { 0, 0, 0 };
1595 6cea494e Zdenek Kabelac
1596
    mov->fc = s;
1597 b6a17df4 Zdenek Kabelac
    mov->parse_table = mov_default_parse_table;
1598 3253c51f Michael Niedermayer
1599 6cea494e Zdenek Kabelac
    if(!url_is_streamed(pb)) /* .mov and .mp4 aren't streamable anyway (only progressive download if moov is before mdat) */
1600 bb270c08 Diego Biurrun
        atom.size = url_fsize(pb);
1601 6cea494e Zdenek Kabelac
    else
1602 bb270c08 Diego Biurrun
        atom.size = 0x7FFFFFFFFFFFFFFFLL;
1603 6cea494e Zdenek Kabelac
1604
    /* check MOV header */
1605 5ca1d879 Zdenek Kabelac
    err = mov_read_default(mov, pb, atom);
1606 25fa62e1 Zdenek Kabelac
    if (err<0 || (!mov->found_moov && !mov->found_mdat)) {
1607 bb270c08 Diego Biurrun
        av_log(s, AV_LOG_ERROR, "mov: header not found !!! (err:%d, moov:%d, mdat:%d) pos:%"PRId64"\n",
1608
                err, mov->found_moov, mov->found_mdat, url_ftell(pb));
1609
        return -1;
1610 6cea494e Zdenek Kabelac
    }
1611 4e5ef14f Baptiste Coudurier
    dprintf("on_parse_exit_offset=%d\n", (int) url_ftell(pb));
1612
1613 6cea494e Zdenek Kabelac
    /* some cleanup : make sure we are on the mdat atom */
1614
    if(!url_is_streamed(pb) && (url_ftell(pb) != mov->mdat_offset))
1615
        url_fseek(pb, mov->mdat_offset, SEEK_SET);
1616
1617 05edc1a7 Baptiste Coudurier
    mov->total_streams = s->nb_streams;
1618 5ca1d879 Zdenek Kabelac
1619 05edc1a7 Baptiste Coudurier
    for(i=0; i<mov->total_streams; i++) {
1620
        MOVStreamContext *sc = mov->streams[i];
1621 dfcf8d57 Baptiste Coudurier
        /* sanity checks */
1622
        if(!sc->stts_count || !sc->chunk_count || !sc->sample_to_chunk_sz ||
1623
           (!sc->sample_size && !sc->sample_count)){
1624
            av_log(s, AV_LOG_ERROR, "missing mandatory atoms, broken header\n");
1625
            return -1;
1626
        }
1627 05edc1a7 Baptiste Coudurier
        if(!sc->time_rate)
1628
            sc->time_rate=1;
1629
        if(!sc->time_scale)
1630
            sc->time_scale= mov->time_scale;
1631
        av_set_pts_info(s->streams[i], 64, sc->time_rate, sc->time_scale);
1632
1633
        if(s->streams[i]->duration != AV_NOPTS_VALUE){
1634
            assert(s->streams[i]->duration % sc->time_rate == 0);
1635
            s->streams[i]->duration /= sc->time_rate;
1636 75b5b631 Michael Niedermayer
        }
1637 05edc1a7 Baptiste Coudurier
        sc->ffindex = i;
1638 b72708f8 Baptiste Coudurier
        mov_build_index(mov, s->streams[i]);
1639 6cea494e Zdenek Kabelac
    }
1640 a2fe3b58 Baptiste Coudurier
1641 b72708f8 Baptiste Coudurier
    for(i=0; i<mov->total_streams; i++) {
1642
        /* dont need those anymore */
1643
        av_freep(&mov->streams[i]->chunk_offsets);
1644
        av_freep(&mov->streams[i]->sample_to_chunk);
1645
        av_freep(&mov->streams[i]->sample_sizes);
1646
        av_freep(&mov->streams[i]->keyframes);
1647
        av_freep(&mov->streams[i]->stts_data);
1648
    }
1649
    av_freep(&mov->mdat_list);
1650 6cea494e Zdenek Kabelac
    return 0;
1651
}
1652
1653 a266644f Zdenek Kabelac
static int mov_read_packet(AVFormatContext *s, AVPacket *pkt)
1654 6cea494e Zdenek Kabelac
{
1655 b72708f8 Baptiste Coudurier
    MOVContext *mov = s->priv_data;
1656
    MOVStreamContext *sc = 0;
1657
    AVIndexEntry *sample = 0;
1658 86d8602f Michael Niedermayer
    int64_t best_dts = INT64_MAX;
1659 b72708f8 Baptiste Coudurier
    int i;
1660 3ffe3793 François Revol
1661 b72708f8 Baptiste Coudurier
    for (i = 0; i < mov->total_streams; i++) {
1662 bb270c08 Diego Biurrun
        MOVStreamContext *msc = mov->streams[i];
1663 86d8602f Michael Niedermayer
1664 b72708f8 Baptiste Coudurier
        if (s->streams[i]->discard != AVDISCARD_ALL && msc->current_sample < msc->sample_count) {
1665
            AVIndexEntry *current_sample = &s->streams[i]->index_entries[msc->current_sample];
1666
            int64_t dts = av_rescale(current_sample->timestamp * (int64_t)msc->time_rate, AV_TIME_BASE, msc->time_scale);
1667
1668 949b1a13 Steve L'Homme
            dprintf("stream %d, sample %ld, dts %"PRId64"\n", i, msc->current_sample, dts);
1669 b72708f8 Baptiste Coudurier
            if (dts < best_dts) {
1670
                sample = current_sample;
1671
                best_dts = dts;
1672
                sc = msc;
1673 86d8602f Michael Niedermayer
            }
1674 6cea494e Zdenek Kabelac
        }
1675
    }
1676 b72708f8 Baptiste Coudurier
    if (!sample)
1677
        return -1;
1678
    /* must be done just before reading, to avoid infinite loop on sample */
1679
    sc->current_sample++;
1680 1f1890c7 Baptiste Coudurier
    if (sample->pos >= url_fsize(&s->pb)) {
1681 ccd3228e Dominik Mierzejewski
        av_log(mov->fc, AV_LOG_ERROR, "stream %d, offset 0x%"PRIx64": partial file\n", sc->ffindex, sample->pos);
1682 bb270c08 Diego Biurrun
        return -1;
1683 6cea494e Zdenek Kabelac
    }
1684 312954f0 Baptiste Coudurier
#ifdef CONFIG_DV_DEMUXER
1685 b60c0454 Baptiste Coudurier
    if (sc->dv_audio_container) {
1686
        dv_get_packet(mov->dv_demux, pkt);
1687
        dprintf("dv audio pkt size %d\n", pkt->size);
1688
    } else {
1689 312954f0 Baptiste Coudurier
#endif
1690 b60c0454 Baptiste Coudurier
        url_fseek(&s->pb, sample->pos, SEEK_SET);
1691
        av_get_packet(&s->pb, pkt, sample->size);
1692 312954f0 Baptiste Coudurier
#ifdef CONFIG_DV_DEMUXER
1693 b60c0454 Baptiste Coudurier
        if (mov->dv_demux) {
1694
            void *pkt_destruct_func = pkt->destruct;
1695
            dv_produce_packet(mov->dv_demux, pkt, pkt->data, pkt->size);
1696
            pkt->destruct = pkt_destruct_func;
1697
        }
1698
    }
1699 312954f0 Baptiste Coudurier
#endif
1700 b72708f8 Baptiste Coudurier
    pkt->stream_index = sc->ffindex;
1701
    pkt->dts = sample->timestamp;
1702
    if (sc->ctts_data) {
1703
        assert(sc->ctts_data[sc->sample_to_ctime_index].duration % sc->time_rate == 0);
1704
        pkt->pts = pkt->dts + sc->ctts_data[sc->sample_to_ctime_index].duration / sc->time_rate;
1705
        /* update ctts context */
1706
        sc->sample_to_ctime_sample++;
1707
        if (sc->sample_to_ctime_index < sc->ctts_count && sc->ctts_data[sc->sample_to_ctime_index].count == sc->sample_to_ctime_sample) {
1708
            sc->sample_to_ctime_index++;
1709
            sc->sample_to_ctime_sample = 0;
1710 b565ea09 Baptiste Coudurier
        }
1711 b72708f8 Baptiste Coudurier
    } else {
1712
        pkt->pts = pkt->dts;
1713 b565ea09 Baptiste Coudurier
    }
1714 b72708f8 Baptiste Coudurier
    pkt->flags |= sample->flags & AVINDEX_KEYFRAME ? PKT_FLAG_KEY : 0;
1715
    pkt->pos = sample->pos;
1716 949b1a13 Steve L'Homme
    dprintf("stream %d, pts %"PRId64", dts %"PRId64", pos 0x%"PRIx64", duration %d\n", pkt->stream_index, pkt->pts, pkt->dts, pkt->pos, pkt->duration);
1717 b72708f8 Baptiste Coudurier
    return 0;
1718
}
1719 3ffe3793 François Revol
1720 b72708f8 Baptiste Coudurier
static int mov_seek_stream(AVStream *st, int64_t timestamp, int flags)
1721
{
1722
    MOVStreamContext *sc = st->priv_data;
1723
    int sample, time_sample;
1724
    int i;
1725 115329f1 Diego Biurrun
1726 b72708f8 Baptiste Coudurier
    sample = av_index_search_timestamp(st, timestamp, flags);
1727 949b1a13 Steve L'Homme
    dprintf("stream %d, timestamp %"PRId64", sample %d\n", st->index, timestamp, sample);
1728 b72708f8 Baptiste Coudurier
    if (sample < 0) /* not sure what to do */
1729
        return -1;
1730
    sc->current_sample = sample;
1731
    dprintf("stream %d, found sample %ld\n", st->index, sc->current_sample);
1732
    /* adjust ctts index */
1733
    if (sc->ctts_data) {
1734
        time_sample = 0;
1735
        for (i = 0; i < sc->ctts_count; i++) {
1736
            time_sample += sc->ctts_data[i].count;
1737
            if (time_sample >= sc->current_sample) {
1738
                sc->sample_to_ctime_index = i;
1739
                sc->sample_to_ctime_sample = time_sample - sc->current_sample;
1740
                break;
1741 115329f1 Diego Biurrun
            }
1742 247d56f5 Brian Becker
        }
1743
    }
1744 b72708f8 Baptiste Coudurier
    return sample;
1745 6cea494e Zdenek Kabelac
}
1746
1747 961e0ccd Michael Niedermayer
static int mov_read_seek(AVFormatContext *s, int stream_index, int64_t sample_time, int flags)
1748 baf25c9d Gael Chardon
{
1749 b72708f8 Baptiste Coudurier
    AVStream *st;
1750
    int64_t seek_timestamp, timestamp;
1751
    int sample;
1752
    int i;
1753 baf25c9d Gael Chardon
1754 b72708f8 Baptiste Coudurier
    if (stream_index >= s->nb_streams)
1755 baf25c9d Gael Chardon
        return -1;
1756
1757 b72708f8 Baptiste Coudurier
    st = s->streams[stream_index];
1758
    sample = mov_seek_stream(st, sample_time, flags);
1759
    if (sample < 0)
1760 baf25c9d Gael Chardon
        return -1;
1761
1762 b72708f8 Baptiste Coudurier
    /* adjust seek timestamp to found sample timestamp */
1763
    seek_timestamp = st->index_entries[sample].timestamp;
1764 baf25c9d Gael Chardon
1765 b72708f8 Baptiste Coudurier
    for (i = 0; i < s->nb_streams; i++) {
1766
        st = s->streams[i];
1767
        if (stream_index == i || st->discard == AVDISCARD_ALL)
1768
            continue;
1769 baf25c9d Gael Chardon
1770 b72708f8 Baptiste Coudurier
        timestamp = av_rescale_q(seek_timestamp, s->streams[stream_index]->time_base, st->time_base);
1771
        mov_seek_stream(st, timestamp, flags);
1772 115329f1 Diego Biurrun
    }
1773 baf25c9d Gael Chardon
    return 0;
1774
}
1775
1776 a266644f Zdenek Kabelac
static int mov_read_close(AVFormatContext *s)
1777 6cea494e Zdenek Kabelac
{
1778
    int i;
1779 b6a17df4 Zdenek Kabelac
    MOVContext *mov = (MOVContext *) s->priv_data;
1780 6cea494e Zdenek Kabelac
    for(i=0; i<mov->total_streams; i++)
1781
        mov_free_stream_context(mov->streams[i]);
1782 5ca1d879 Zdenek Kabelac
    /* free color tabs */
1783
    for(i=0; i<mov->ctab_size; i++)
1784 bb270c08 Diego Biurrun
        av_freep(&mov->ctab[i]);
1785 b60c0454 Baptiste Coudurier
    if(mov->dv_demux){
1786
        for(i=0; i<mov->dv_fctx->nb_streams; i++){
1787
            av_freep(&mov->dv_fctx->streams[i]->codec);
1788
            av_freep(&mov->dv_fctx->streams[i]);
1789
        }
1790
        av_freep(&mov->dv_fctx);
1791
        av_freep(&mov->dv_demux);
1792
    }
1793 5ca1d879 Zdenek Kabelac
    av_freep(&mov->ctab);
1794 6cea494e Zdenek Kabelac
    return 0;
1795
}
1796
1797 ff70e601 Måns Rullgård
AVInputFormat mov_demuxer = {
1798 fc5188f3 Baptiste Coudurier
    "mov,mp4,m4a,3gp,3g2,mj2",
1799
    "QuickTime/MPEG4/Motion JPEG 2000 format",
1800 c9a65ca8 Fabrice Bellard
    sizeof(MOVContext),
1801
    mov_probe,
1802 6cea494e Zdenek Kabelac
    mov_read_header,
1803
    mov_read_packet,
1804
    mov_read_close,
1805 baf25c9d Gael Chardon
    mov_read_seek,
1806 6cea494e Zdenek Kabelac
};