set gsm default frame size and bytes per frame, needed by old qt format, fix sample...
[libav.git] / libavformat / mov.c
CommitLineData
6cea494e 1/*
7fbde343 2 * MOV demuxer
19720f15 3 * Copyright (c) 2001 Fabrice Bellard.
6cea494e 4 *
b78e7197
DB
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
19720f15
FB
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
b78e7197 10 * version 2.1 of the License, or (at your option) any later version.
6cea494e 11 *
b78e7197 12 * FFmpeg is distributed in the hope that it will be useful,
6cea494e 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19720f15
FB
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
6cea494e 16 *
19720f15 17 * You should have received a copy of the GNU Lesser General Public
b78e7197 18 * License along with FFmpeg; if not, write to the Free Software
5509bffa 19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
6cea494e 20 */
d957696f
MN
21
22#include <limits.h>
115329f1 23
bfc2a19d 24//#define DEBUG
4e5ef14f 25
6cea494e 26#include "avformat.h"
9d9f4119 27#include "riff.h"
e40ee6a2 28#include "isom.h"
b60c0454 29#include "dv.h"
6cea494e 30
0147f198
FR
31#ifdef CONFIG_ZLIB
32#include <zlib.h>
33#endif
34
6cea494e
ZK
35/*
36 * First version by Francois Revol revol@free.fr
115329f1 37 * Seek function by Gael Chardon gael.dev@4now.net
5ca1d879 38 *
6cea494e 39 * Features and limitations:
5ca1d879 40 * - reads most of the QT files I have (at least the structure),
6cea494e 41 * Sample QuickTime files with mp3 audio can be found at: http://www.3ivx.com/showcase.html
6cea494e 42 * - the code is quite ugly... maybe I won't do it recursive next time :-)
5ca1d879 43 *
6cea494e
ZK
44 * Funny I didn't know about http://sourceforge.net/projects/qt-ffmpeg/
45 * when coding this :) (it's a writer anyway)
5ca1d879 46 *
6cea494e
ZK
47 * Reference documents:
48 * http://www.geocities.com/xhelmboyx/quicktime/formats/qtm-layout.txt
49 * Apple:
baf25c9d 50 * http://developer.apple.com/documentation/QuickTime/QTFF/
15c8dbe7 51 * http://developer.apple.com/documentation/QuickTime/QTFF/qtff.pdf
6cea494e
ZK
52 * QuickTime is a trademark of Apple (AFAIK :))
53 */
54
b595afaa
MM
55#include "qtpalette.h"
56
baf25c9d 57
cd7352d5
MN
58#undef NDEBUG
59#include <assert.h>
60
6cea494e
ZK
61/* the QuickTime file format is quite convoluted...
62 * it has lots of index tables, each indexing something in another one...
63 * Here we just use what is needed to read the chunks
64 */
65
e23848a4 66typedef struct {
1c02d96f
BC
67 int first;
68 int count;
69 int id;
e23848a4 70} MOV_stsc_t;
6cea494e 71
5cd62665 72typedef struct {
5ca1d879 73 uint32_t type;
221e21b7
BC
74 char *path;
75} MOV_dref_t;
76
77typedef struct {
78 uint32_t type;
5ca1d879
ZK
79 int64_t offset;
80 int64_t size; /* total size (excluding the size and type fields) */
81} MOV_atom_t;
82
b6a17df4
ZK
83struct MOVParseTableEntry;
84
61aedb0f
BC
85typedef struct {
86 unsigned track_id;
87 uint64_t base_data_offset;
88 uint64_t moof_offset;
89 unsigned stsd_id;
90 unsigned duration;
91 unsigned size;
92 unsigned flags;
93} MOVFragment;
94
95typedef struct {
96 unsigned track_id;
97 unsigned stsd_id;
98 unsigned duration;
99 unsigned size;
100 unsigned flags;
101} MOVTrackExt;
102
6cea494e 103typedef struct MOVStreamContext {
221e21b7 104 ByteIOContext *pb;
6cea494e 105 int ffindex; /* the ffmpeg stream id */
1c02d96f 106 int next_chunk;
44d3fea5 107 unsigned int chunk_count;
0c1a9eda 108 int64_t *chunk_offsets;
44d3fea5 109 unsigned int stts_count;
e23848a4 110 MOV_stts_t *stts_data;
44d3fea5 111 unsigned int ctts_count;
e23848a4 112 MOV_stts_t *ctts_data;
44d3fea5
BC
113 unsigned int edit_count; /* number of 'edit' (elst atom) */
114 unsigned int sample_to_chunk_sz;
e23848a4 115 MOV_stsc_t *sample_to_chunk;
c4ac052b
MN
116 int sample_to_ctime_index;
117 int sample_to_ctime_sample;
44d3fea5
BC
118 unsigned int sample_size;
119 unsigned int sample_count;
1c02d96f 120 int *sample_sizes;
44d3fea5 121 unsigned int keyframe_count;
1c02d96f 122 int *keyframes;
5cd62665 123 int time_scale;
cd7352d5 124 int time_rate;
1c02d96f 125 int current_sample;
e14f79ed
BC
126 unsigned int bytes_per_frame;
127 unsigned int samples_per_frame;
b60c0454 128 int dv_audio_container;
ee6e2dbe 129 int pseudo_stream_id;
77c75437 130 int16_t audio_cid; ///< stsd audio compression id
221e21b7
BC
131 unsigned drefs_count;
132 MOV_dref_t *drefs;
133 int dref_id;
6cea494e
ZK
134} MOVStreamContext;
135
136typedef struct MOVContext {
6cea494e 137 AVFormatContext *fc;
5cd62665 138 int time_scale;
7e815047 139 int64_t duration; /* duration of the longest track */
6cea494e
ZK
140 int found_moov; /* when both 'moov' and 'mdat' sections has been found */
141 int found_mdat; /* we suppose we have enough data to read the file */
b595afaa 142 AVPaletteControl palette_control;
b60c0454
BC
143 DVDemuxContext *dv_demux;
144 AVFormatContext *dv_fctx;
152e9a43 145 int isom; /* 1 if file is ISO Media (mp4/3gp) */
61aedb0f
BC
146 MOVFragment fragment; ///< current fragment in moof atom
147 MOVTrackExt *trex_data;
148 unsigned trex_count;
6cea494e
ZK
149} MOVContext;
150
151
6cea494e
ZK
152/* XXX: it's the first time I make a recursive parser I think... sorry if it's ugly :P */
153
154/* those functions parse an atom */
155/* return code:
e3c4740f
BC
156 1: found what I wanted, exit
157 0: continue to parse next atom
d9526386 158 <0: error occurred, exit
e3c4740f 159*/
6cea494e
ZK
160/* links atom IDs to parse functions */
161typedef struct MOVParseTableEntry {
0c1a9eda 162 uint32_t type;
03dc32f6 163 int (*parse)(MOVContext *ctx, ByteIOContext *pb, MOV_atom_t atom);
6cea494e
ZK
164} MOVParseTableEntry;
165
73d07c27
BC
166static const MOVParseTableEntry mov_default_parse_table[];
167
5ca1d879 168static int mov_read_default(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
6cea494e 169{
b6a17df4 170 int64_t total_size = 0;
5ca1d879 171 MOV_atom_t a;
6cea494e
ZK
172 int i;
173 int err = 0;
5ca1d879 174
5ca1d879 175 a.offset = atom.offset;
6cea494e 176
9ed83b0a 177 if (atom.size < 0)
fa22ca22 178 atom.size = INT64_MAX;
5ca1d879 179 while(((total_size + 8) < atom.size) && !url_feof(pb) && !err) {
bb270c08 180 a.size = atom.size;
bcfe2ba0 181 a.type=0;
5ca1d879 182 if(atom.size >= 8) {
bb270c08 183 a.size = get_be32(pb);
5ca1d879 184 a.type = get_le32(pb);
6cea494e 185 }
bb270c08 186 total_size += 8;
5ca1d879 187 a.offset += 8;
29c90869
BC
188 dprintf(c->fc, "type: %08x %.4s sz: %"PRIx64" %"PRIx64" %"PRIx64"\n",
189 a.type, (char*)&a.type, a.size, atom.size, total_size);
5ca1d879 190 if (a.size == 1) { /* 64 bit extended size */
bb270c08 191 a.size = get_be64(pb) - 8;
5ca1d879
ZK
192 a.offset += 8;
193 total_size += 8;
6cea494e 194 }
bb270c08
DB
195 if (a.size == 0) {
196 a.size = atom.size - total_size;
197 if (a.size <= 8)
5cd62665 198 break;
bb270c08 199 }
bb270c08 200 a.size -= 8;
8622613d 201 if(a.size < 0)
568e18b1 202 break;
3d2308b0 203 a.size = FFMIN(a.size, atom.size - total_size);
115329f1 204
bcfe2ba0 205 for (i = 0; mov_default_parse_table[i].type != 0
73d07c27 206 && mov_default_parse_table[i].type != a.type; i++)
11979c46
BC
207 /* empty */;
208
73d07c27 209 if (mov_default_parse_table[i].type == 0) { /* skip leaf atoms data */
5ca1d879 210 url_fskip(pb, a.size);
bb270c08 211 } else {
5c72cad8
BC
212 offset_t start_pos = url_ftell(pb);
213 int64_t left;
03dc32f6 214 err = mov_default_parse_table[i].parse(c, pb, a);
db3ee6cc 215 if (url_is_streamed(pb) && c->found_moov && c->found_mdat)
687f35f3 216 break;
5c72cad8
BC
217 left = a.size - url_ftell(pb) + start_pos;
218 if (left > 0) /* skip garbage at atom end */
219 url_fskip(pb, left);
bb270c08 220 }
6cea494e 221
bb270c08 222 a.offset += a.size;
5ca1d879 223 total_size += a.size;
6cea494e
ZK
224 }
225
9ce84dd8 226 if (!err && total_size < atom.size && atom.size < 0x7ffff)
5ca1d879 227 url_fskip(pb, atom.size - total_size);
5cd62665 228
6cea494e
ZK
229 return err;
230}
231
221e21b7
BC
232static int mov_read_dref(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
233{
234 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
235 MOVStreamContext *sc = st->priv_data;
236 int entries, i, j;
237
238 get_be32(pb); // version + flags
239 entries = get_be32(pb);
240 if (entries >= UINT_MAX / sizeof(*sc->drefs))
241 return -1;
242 sc->drefs_count = entries;
243 sc->drefs = av_mallocz(entries * sizeof(*sc->drefs));
244
245 for (i = 0; i < sc->drefs_count; i++) {
246 MOV_dref_t *dref = &sc->drefs[i];
247 uint32_t size = get_be32(pb);
248 offset_t next = url_ftell(pb) + size - 4;
249
250 dref->type = get_le32(pb);
251 get_be32(pb); // version + flags
252 dprintf(c->fc, "type %.4s size %d\n", (char*)&dref->type, size);
253
254 if (dref->type == MKTAG('a','l','i','s') && size > 150) {
255 /* macintosh alias record */
256 uint16_t volume_len, len;
257 char volume[28];
258 int16_t type;
259
260 url_fskip(pb, 10);
261
262 volume_len = get_byte(pb);
263 volume_len = FFMIN(volume_len, 27);
264 get_buffer(pb, volume, 27);
265 volume[volume_len] = 0;
266 av_log(c->fc, AV_LOG_DEBUG, "volume %s, len %d\n", volume, volume_len);
267
268 url_fskip(pb, 112);
269
270 for (type = 0; type != -1 && url_ftell(pb) < next; ) {
271 type = get_be16(pb);
272 len = get_be16(pb);
273 av_log(c->fc, AV_LOG_DEBUG, "type %d, len %d\n", type, len);
274 if (len&1)
275 len += 1;
276 if (type == 2) { // absolute path
dbb37657 277 av_free(dref->path);
221e21b7 278 dref->path = av_mallocz(len+1);
2f4568e5
BC
279 if (!dref->path)
280 return AVERROR(ENOMEM);
221e21b7 281 get_buffer(pb, dref->path, len);
dbb7cbf2 282 if (len > volume_len && !strncmp(dref->path, volume, volume_len)) {
221e21b7
BC
283 len -= volume_len;
284 memmove(dref->path, dref->path+volume_len, len);
285 dref->path[len] = 0;
286 }
287 for (j = 0; j < len; j++)
288 if (dref->path[j] == ':')
289 dref->path[j] = '/';
290 av_log(c->fc, AV_LOG_DEBUG, "path %s\n", dref->path);
291 } else
292 url_fskip(pb, len);
293 }
294 }
295 url_fseek(pb, next, SEEK_SET);
296 }
297 return 0;
298}
299
5ca1d879 300static int mov_read_hdlr(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
6cea494e 301{
5ca1d879 302 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
0c1a9eda 303 uint32_t type;
0c1a9eda 304 uint32_t ctype;
b6a17df4 305
6cea494e 306 get_byte(pb); /* version */
23f08617 307 get_be24(pb); /* flags */
6cea494e
ZK
308
309 /* component type */
310 ctype = get_le32(pb);
311 type = get_le32(pb); /* component subtype */
312
29c90869
BC
313 dprintf(c->fc, "ctype= %c%c%c%c (0x%08x)\n", *((char *)&ctype), ((char *)&ctype)[1],
314 ((char *)&ctype)[2], ((char *)&ctype)[3], (int) ctype);
315 dprintf(c->fc, "stype= %c%c%c%c\n",
316 *((char *)&type), ((char *)&type)[1], ((char *)&type)[2], ((char *)&type)[3]);
152e9a43
BC
317 if(!ctype)
318 c->isom = 1;
73920f07
BC
319 if(type == MKTAG('v', 'i', 'd', 'e'))
320 st->codec->codec_type = CODEC_TYPE_VIDEO;
321 else if(type == MKTAG('s', 'o', 'u', 'n'))
322 st->codec->codec_type = CODEC_TYPE_AUDIO;
95a07973
BC
323 else if(type == MKTAG('m', '1', 'a', ' '))
324 st->codec->codec_id = CODEC_ID_MP2;
8cb97693
BC
325 else if(type == MKTAG('s', 'u', 'b', 'p')) {
326 st->codec->codec_type = CODEC_TYPE_SUBTITLE;
8cb97693 327 }
6cea494e
ZK
328 get_be32(pb); /* component manufacture */
329 get_be32(pb); /* component flags */
330 get_be32(pb); /* component flags mask */
331
5ca1d879 332 if(atom.size <= 24)
6cea494e 333 return 0; /* nothing left to read */
5cd62665 334
3c13647a 335 url_fskip(pb, atom.size - (url_ftell(pb) - atom.offset));
6cea494e
ZK
336 return 0;
337}
338
9e40addd 339static int mp4_read_descr_len(ByteIOContext *pb)
0e7eed09 340{
5cd62665 341 int len = 0;
5ca1d879
ZK
342 int count = 4;
343 while (count--) {
5cd62665 344 int c = get_byte(pb);
bb270c08
DB
345 len = (len << 7) | (c & 0x7f);
346 if (!(c & 0x80))
347 break;
0e7eed09
FB
348 }
349 return len;
350}
351
9e40addd 352static int mp4_read_descr(MOVContext *c, ByteIOContext *pb, int *tag)
0e7eed09
FB
353{
354 int len;
355 *tag = get_byte(pb);
9e40addd 356 len = mp4_read_descr_len(pb);
318c5e05 357 dprintf(c->fc, "MPEG4 description: tag=0x%02x len=%d\n", *tag, len);
0e7eed09
FB
358 return len;
359}
360
0b07ac42
BC
361#define MP4ESDescrTag 0x03
362#define MP4DecConfigDescrTag 0x04
363#define MP4DecSpecificDescrTag 0x05
364
5ca1d879 365static int mov_read_esds(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
5cd62665 366{
5cd62665 367 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
5cd62665 368 int tag, len;
b6a17df4 369
5cd62665 370 get_be32(pb); /* version + flags */
9e40addd 371 len = mp4_read_descr(c, pb, &tag);
5cd62665 372 if (tag == MP4ESDescrTag) {
bb270c08
DB
373 get_be16(pb); /* ID */
374 get_byte(pb); /* priority */
5cd62665 375 } else
bb270c08 376 get_be16(pb); /* ID */
5cd62665 377
9e40addd 378 len = mp4_read_descr(c, pb, &tag);
5cd62665 379 if (tag == MP4DecConfigDescrTag) {
0b07ac42
BC
380 int object_type_id = get_byte(pb);
381 get_byte(pb); /* stream type */
382 get_be24(pb); /* buffer size db */
383 get_be32(pb); /* max bitrate */
384 get_be32(pb); /* avg bitrate */
385
386 st->codec->codec_id= codec_get_id(ff_mp4_obj_type, object_type_id);
387 dprintf(c->fc, "esds object type id %d\n", object_type_id);
9e40addd 388 len = mp4_read_descr(c, pb, &tag);
bb270c08 389 if (tag == MP4DecSpecificDescrTag) {
318c5e05 390 dprintf(c->fc, "Specific MPEG4 header len=%d\n", len);
852859ff
BC
391 if((uint64_t)len > (1<<30))
392 return -1;
9a630c25 393 st->codec->extradata = av_mallocz(len + FF_INPUT_BUFFER_PADDING_SIZE);
b014dd76
BC
394 if (!st->codec->extradata)
395 return AVERROR(ENOMEM);
17871a02
BC
396 get_buffer(pb, st->codec->extradata, len);
397 st->codec->extradata_size = len;
398 /* from mplayer */
399 if ((*st->codec->extradata >> 3) == 29) {
400 st->codec->codec_id = CODEC_ID_MP3ON4;
401 }
bb270c08 402 }
5cd62665 403 }
5cd62665
ZK
404 return 0;
405}
406
5ca1d879
ZK
407/* this atom contains actual media data */
408static int mov_read_mdat(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
6cea494e 409{
5ca1d879
ZK
410 if(atom.size == 0) /* wrong one (MP4) */
411 return 0;
412 c->found_mdat=1;
5ca1d879
ZK
413 return 0; /* now go for moov */
414}
415
4ea28253
BC
416static int mov_read_ftyp(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
417{
418 uint32_t type = get_le32(pb);
419
152e9a43
BC
420 if (type != MKTAG('q','t',' ',' '))
421 c->isom = 1;
a512446e 422 av_log(c->fc, AV_LOG_DEBUG, "ISO: File Type Major Brand: %.4s\n",(char *)&type);
4ea28253
BC
423 get_be32(pb); /* minor version */
424 url_fskip(pb, atom.size - 8);
425 return 0;
426}
427
5ca1d879
ZK
428/* this atom should contain all header atoms */
429static int mov_read_moov(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
430{
9cf0419b
PI
431 if (mov_read_default(c, pb, atom) < 0)
432 return -1;
5ca1d879
ZK
433 /* we parsed the 'moov' atom, we can terminate the parsing as soon as we find the 'mdat' */
434 /* so we don't parse the whole file if over a network */
435 c->found_moov=1;
5ca1d879
ZK
436 return 0; /* now go for mdat */
437}
438
61aedb0f
BC
439static int mov_read_moof(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
440{
441 c->fragment.moof_offset = url_ftell(pb) - 8;
442 dprintf(c->fc, "moof offset %llx\n", c->fragment.moof_offset);
443 return mov_read_default(c, pb, atom);
444}
5ca1d879
ZK
445
446static int mov_read_mdhd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
447{
f444b977 448 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
e4141433 449 MOVStreamContext *sc = st->priv_data;
f444b977 450 int version = get_byte(pb);
b9a87c4d 451 int lang;
5ca1d879 452
b9a87c4d
FR
453 if (version > 1)
454 return 1; /* unsupported */
5ca1d879 455
23f08617 456 get_be24(pb); /* flags */
f444b977
BC
457 if (version == 1) {
458 get_be64(pb);
459 get_be64(pb);
460 } else {
461 get_be32(pb); /* creation time */
462 get_be32(pb); /* modification time */
463 }
5ca1d879 464
f444b977
BC
465 sc->time_scale = get_be32(pb);
466 st->duration = (version == 1) ? get_be64(pb) : get_be32(pb); /* duration */
5ca1d879 467
b9a87c4d 468 lang = get_be16(pb); /* language */
f444b977 469 ff_mov_lang_to_iso639(lang, st->language);
5ca1d879
ZK
470 get_be16(pb); /* quality */
471
472 return 0;
473}
474
475static int mov_read_mvhd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
476{
1175561e 477 int version = get_byte(pb); /* version */
23f08617 478 get_be24(pb); /* flags */
5ca1d879 479
1175561e
BC
480 if (version == 1) {
481 get_be64(pb);
482 get_be64(pb);
483 } else {
484 get_be32(pb); /* creation time */
485 get_be32(pb); /* modification time */
486 }
5ca1d879 487 c->time_scale = get_be32(pb); /* time scale */
f8c18cd7
BC
488
489 dprintf(c->fc, "time scale = %i\n", c->time_scale);
490
1175561e 491 c->duration = (version == 1) ? get_be64(pb) : get_be32(pb); /* duration */
5ca1d879
ZK
492 get_be32(pb); /* preferred scale */
493
494 get_be16(pb); /* preferred volume */
495
496 url_fskip(pb, 10); /* reserved */
497
498 url_fskip(pb, 36); /* display matrix */
499
500 get_be32(pb); /* preview time */
501 get_be32(pb); /* preview duration */
502 get_be32(pb); /* poster time */
503 get_be32(pb); /* selection time */
504 get_be32(pb); /* selection duration */
505 get_be32(pb); /* current time */
506 get_be32(pb); /* next track ID */
507
508 return 0;
509}
510
9ed83b0a
ZK
511static int mov_read_smi(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
512{
513 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
514
568e18b1
MN
515 if((uint64_t)atom.size > (1<<30))
516 return -1;
115329f1 517
9ed83b0a
ZK
518 // currently SVQ3 decoder expect full STSD header - so let's fake it
519 // this should be fixed and just SMI header should be passed
01f4895c 520 av_free(st->codec->extradata);
b014dd76
BC
521 st->codec->extradata = av_mallocz(atom.size + 0x5a + FF_INPUT_BUFFER_PADDING_SIZE);
522 if (!st->codec->extradata)
523 return AVERROR(ENOMEM);
17871a02
BC
524 st->codec->extradata_size = 0x5a + atom.size;
525 memcpy(st->codec->extradata, "SVQ3", 4); // fake
526 get_buffer(pb, st->codec->extradata + 0x5a, atom.size);
527 dprintf(c->fc, "Reading SMI %"PRId64" %s\n", atom.size, st->codec->extradata + 0x5a);
9ed83b0a
ZK
528 return 0;
529}
5ca1d879 530
de23f234
BC
531static int mov_read_enda(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
532{
533 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
534 int little_endian = get_be16(pb);
535
536 if (little_endian) {
537 switch (st->codec->codec_id) {
538 case CODEC_ID_PCM_S24BE:
539 st->codec->codec_id = CODEC_ID_PCM_S24LE;
540 break;
541 case CODEC_ID_PCM_S32BE:
542 st->codec->codec_id = CODEC_ID_PCM_S32LE;
543 break;
544 default:
545 break;
546 }
547 }
548 return 0;
549}
550
014a5102
BC
551/* FIXME modify qdm2/svq3/h264 decoders to take full atom as extradata */
552static int mov_read_extradata(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
de23f234
BC
553{
554 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
68bc33fa
BC
555 uint64_t size= (uint64_t)st->codec->extradata_size + atom.size + 8 + FF_INPUT_BUFFER_PADDING_SIZE;
556 uint8_t *buf;
557 if(size > INT_MAX || (uint64_t)atom.size > INT_MAX)
014a5102 558 return -1;
68bc33fa
BC
559 buf= av_realloc(st->codec->extradata, size);
560 if(!buf)
561 return -1;
562 st->codec->extradata= buf;
563 buf+= st->codec->extradata_size;
564 st->codec->extradata_size= size - FF_INPUT_BUFFER_PADDING_SIZE;
565 AV_WB32( buf , atom.size + 8);
566 AV_WL32( buf + 4, atom.type);
567 get_buffer(pb, buf + 8, atom.size);
de23f234
BC
568 return 0;
569}
570
d9b1c197
RT
571static int mov_read_wave(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
572{
573 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
574
575 if((uint64_t)atom.size > (1<<30))
576 return -1;
115329f1 577
3840147e
MN
578 if (st->codec->codec_id == CODEC_ID_QDM2) {
579 // pass all frma atom to codec, needed at least for QDM2
580 av_free(st->codec->extradata);
b014dd76
BC
581 st->codec->extradata = av_mallocz(atom.size + FF_INPUT_BUFFER_PADDING_SIZE);
582 if (!st->codec->extradata)
583 return AVERROR(ENOMEM);
3840147e 584 st->codec->extradata_size = atom.size;
b014dd76 585 get_buffer(pb, st->codec->extradata, atom.size);
3840147e 586 } else if (atom.size > 8) { /* to read frma, esds atoms */
9cf0419b
PI
587 if (mov_read_default(c, pb, atom) < 0)
588 return -1;
5c72cad8 589 } else
bb270c08 590 url_fskip(pb, atom.size);
d9b1c197
RT
591 return 0;
592}
593
bde24601
BC
594/**
595 * This function reads atom content and puts data in extradata without tag
596 * nor size unlike mov_read_extradata.
597 */
598static int mov_read_glbl(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
169eb021
MM
599{
600 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
601
568e18b1
MN
602 if((uint64_t)atom.size > (1<<30))
603 return -1;
604
01f4895c 605 av_free(st->codec->extradata);
b014dd76
BC
606 st->codec->extradata = av_mallocz(atom.size + FF_INPUT_BUFFER_PADDING_SIZE);
607 if (!st->codec->extradata)
608 return AVERROR(ENOMEM);
01f4895c 609 st->codec->extradata_size = atom.size;
b014dd76 610 get_buffer(pb, st->codec->extradata, atom.size);
169eb021
MM
611 return 0;
612}
613
5ca1d879
ZK
614static int mov_read_stco(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
615{
616 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
e4141433 617 MOVStreamContext *sc = st->priv_data;
568e18b1 618 unsigned int i, entries;
5ca1d879 619
5ca1d879 620 get_byte(pb); /* version */
23f08617 621 get_be24(pb); /* flags */
5ca1d879
ZK
622
623 entries = get_be32(pb);
115329f1 624
568e18b1
MN
625 if(entries >= UINT_MAX/sizeof(int64_t))
626 return -1;
115329f1 627
5ca1d879 628 sc->chunk_count = entries;
9a630c25 629 sc->chunk_offsets = av_malloc(entries * sizeof(int64_t));
5ca1d879
ZK
630 if (!sc->chunk_offsets)
631 return -1;
632 if (atom.type == MKTAG('s', 't', 'c', 'o')) {
633 for(i=0; i<entries; i++) {
634 sc->chunk_offsets[i] = get_be32(pb);
635 }
636 } else if (atom.type == MKTAG('c', 'o', '6', '4')) {
637 for(i=0; i<entries; i++) {
638 sc->chunk_offsets[i] = get_be64(pb);
639 }
640 } else
641 return -1;
115329f1 642
5ca1d879
ZK
643 return 0;
644}
645
646static int mov_read_stsd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
647{
648 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
e4141433 649 MOVStreamContext *sc = st->priv_data;
5ca1d879
ZK
650 int entries, frames_per_sample;
651 uint32_t format;
53ffdd14 652 uint8_t codec_name[32];
5ca1d879 653
b595afaa 654 /* for palette traversal */
8b35bd80
MM
655 unsigned int color_depth;
656 unsigned int color_start;
657 unsigned int color_count;
658 unsigned int color_end;
b595afaa
MM
659 int color_index;
660 int color_dec;
661 int color_greyscale;
1fe47470 662 const uint8_t *color_table;
ee6e2dbe 663 int j, pseudo_stream_id;
b595afaa
MM
664 unsigned char r, g, b;
665
6cea494e 666 get_byte(pb); /* version */
23f08617 667 get_be24(pb); /* flags */
6cea494e 668
6cea494e
ZK
669 entries = get_be32(pb);
670
117a9190
BC
671 for(pseudo_stream_id=0; pseudo_stream_id<entries; pseudo_stream_id++) {
672 //Parsing Sample description table
b6a17df4 673 enum CodecID id;
221e21b7 674 int dref_id;
de23f234 675 MOV_atom_t a = { 0, 0, 0 };
3840147e 676 offset_t start_pos = url_ftell(pb);
bb270c08 677 int size = get_be32(pb); /* size */
6cea494e 678 format = get_le32(pb); /* data format */
5cd62665 679
6cea494e
ZK
680 get_be32(pb); /* reserved */
681 get_be16(pb); /* reserved */
221e21b7 682 dref_id = get_be16(pb);
0e7eed09 683
744a9c75
MN
684 if (st->codec->codec_tag &&
685 (c->fc->video_codec_id ? codec_get_id(codec_movvideo_tags, format) != c->fc->video_codec_id
686 : st->codec->codec_tag != MKTAG('j', 'p', 'e', 'g'))
687 ){
7ce68923
DB
688 /* Multiple fourcc, we skip JPEG. This is not correct, we should
689 * export it as a separate AVStream but this needs a few changes
690 * in the MOV demuxer, patch welcome. */
e7cc4b52
BC
691 url_fskip(pb, size - (url_ftell(pb) - start_pos));
692 continue;
693 }
ee6e2dbe 694 sc->pseudo_stream_id= pseudo_stream_id;
221e21b7 695 sc->dref_id= dref_id;
e7cc4b52 696
bb270c08 697 st->codec->codec_tag = format;
1e5f5e3b 698 id = codec_get_id(codec_movaudio_tags, format);
bca7db35
MN
699 if (id<=0 && (format&0xFFFF) == 'm' + ('s'<<8))
700 id = codec_get_id(codec_wav_tags, bswap_32(format)&0xFFFF);
701
48855b26 702 if (st->codec->codec_type != CODEC_TYPE_VIDEO && id > 0) {
99487f42 703 st->codec->codec_type = CODEC_TYPE_AUDIO;
48855b26
BC
704 } else if (st->codec->codec_type != CODEC_TYPE_AUDIO && /* do not overwrite codec type */
705 format && format != MKTAG('m', 'p', '4', 's')) { /* skip old asf mpeg4 tag */
1e5f5e3b 706 id = codec_get_id(codec_movvideo_tags, format);
99487f42 707 if (id <= 0)
de23f234 708 id = codec_get_id(codec_bmp_tags, format);
99487f42
BC
709 if (id > 0)
710 st->codec->codec_type = CODEC_TYPE_VIDEO;
1e3c9307
MN
711 else if(st->codec->codec_type == CODEC_TYPE_DATA){
712 id = codec_get_id(ff_codec_movsubtitle_tags, format);
713 if(id > 0)
714 st->codec->codec_type = CODEC_TYPE_SUBTITLE;
715 }
99487f42
BC
716 }
717
29c90869
BC
718 dprintf(c->fc, "size=%d 4CC= %c%c%c%c codec_type=%d\n", size,
719 (format >> 0) & 0xff, (format >> 8) & 0xff, (format >> 16) & 0xff,
720 (format >> 24) & 0xff, st->codec->codec_type);
a20da52c 721
99487f42 722 if(st->codec->codec_type==CODEC_TYPE_VIDEO) {
01f4895c 723 st->codec->codec_id = id;
6cea494e
ZK
724 get_be16(pb); /* version */
725 get_be16(pb); /* revision level */
726 get_be32(pb); /* vendor */
727 get_be32(pb); /* temporal quality */
94472c1d 728 get_be32(pb); /* spatial quality */
3cb4ee51
BC
729
730 st->codec->width = get_be16(pb); /* width */
731 st->codec->height = get_be16(pb); /* height */
732
6cea494e
ZK
733 get_be32(pb); /* horiz resolution */
734 get_be32(pb); /* vert resolution */
735 get_be32(pb); /* data size, always 0 */
5cd62665 736 frames_per_sample = get_be16(pb); /* frames per samples */
f8c18cd7
BC
737
738 dprintf(c->fc, "frames/samples = %d\n", frames_per_sample);
739
576f1445
BC
740 get_buffer(pb, codec_name, 32); /* codec name, pascal string (FIXME: true for mp4?) */
741 if (codec_name[0] <= 31) {
742 memcpy(st->codec->codec_name, &codec_name[1],codec_name[0]);
743 st->codec->codec_name[codec_name[0]] = 0;
744 }
5cd62665 745
bb270c08 746 st->codec->bits_per_sample = get_be16(pb); /* depth */
01f4895c 747 st->codec->color_table_id = get_be16(pb); /* colortable id */
0de2157f
BC
748 dprintf(c->fc, "depth %d, ctab id %d\n",
749 st->codec->bits_per_sample, st->codec->color_table_id);
b595afaa 750 /* figure out the palette situation */
01f4895c
MN
751 color_depth = st->codec->bits_per_sample & 0x1F;
752 color_greyscale = st->codec->bits_per_sample & 0x20;
b595afaa
MM
753
754 /* if the depth is 2, 4, or 8 bpp, file is palettized */
115329f1 755 if ((color_depth == 2) || (color_depth == 4) ||
b595afaa 756 (color_depth == 8)) {
b595afaa 757 if (color_greyscale) {
b595afaa 758 /* compute the greyscale palette */
0de2157f 759 st->codec->bits_per_sample = color_depth;
b595afaa
MM
760 color_count = 1 << color_depth;
761 color_index = 255;
762 color_dec = 256 / (color_count - 1);
763 for (j = 0; j < color_count; j++) {
764 r = g = b = color_index;
765 c->palette_control.palette[j] =
766 (r << 16) | (g << 8) | (b);
767 color_index -= color_dec;
768 if (color_index < 0)
769 color_index = 0;
770 }
71f36235 771 } else if (st->codec->color_table_id) {
b595afaa
MM
772 /* if flag bit 3 is set, use the default palette */
773 color_count = 1 << color_depth;
774 if (color_depth == 2)
a90466f7 775 color_table = ff_qt_default_palette_4;
b595afaa 776 else if (color_depth == 4)
a90466f7 777 color_table = ff_qt_default_palette_16;
b595afaa 778 else
a90466f7 779 color_table = ff_qt_default_palette_256;
b595afaa
MM
780
781 for (j = 0; j < color_count; j++) {
782 r = color_table[j * 4 + 0];
783 g = color_table[j * 4 + 1];
784 b = color_table[j * 4 + 2];
785 c->palette_control.palette[j] =
786 (r << 16) | (g << 8) | (b);
787 }
b595afaa 788 } else {
b595afaa
MM
789 /* load the palette from the file */
790 color_start = get_be32(pb);
791 color_count = get_be16(pb);
792 color_end = get_be16(pb);
8b35bd80
MM
793 if ((color_start <= 255) &&
794 (color_end <= 255)) {
9de2919c
MM
795 for (j = color_start; j <= color_end; j++) {
796 /* each R, G, or B component is 16 bits;
797 * only use the top 8 bits; skip alpha bytes
798 * up front */
799 get_byte(pb);
800 get_byte(pb);
801 r = get_byte(pb);
802 get_byte(pb);
803 g = get_byte(pb);
804 get_byte(pb);
805 b = get_byte(pb);
806 get_byte(pb);
807 c->palette_control.palette[j] =
808 (r << 16) | (g << 8) | (b);
8b35bd80 809 }
b595afaa
MM
810 }
811 }
01f4895c
MN
812 st->codec->palctrl = &c->palette_control;
813 st->codec->palctrl->palette_changed = 1;
b595afaa 814 } else
01f4895c 815 st->codec->palctrl = NULL;
de23f234 816 } else if(st->codec->codec_type==CODEC_TYPE_AUDIO) {
b72708f8 817 int bits_per_sample;
de23f234 818 uint16_t version = get_be16(pb);
b595afaa 819
99487f42 820 st->codec->codec_id = id;
de23f234
BC
821 get_be16(pb); /* revision level */
822 get_be32(pb); /* vendor */
6d6d7970 823
de23f234 824 st->codec->channels = get_be16(pb); /* channel count */
318c5e05 825 dprintf(c->fc, "audio channels %d\n", st->codec->channels);
de23f234 826 st->codec->bits_per_sample = get_be16(pb); /* sample size */
de23f234 827
77c75437 828 sc->audio_cid = get_be16(pb);
de23f234
BC
829 get_be16(pb); /* packet size = 0 */
830
831 st->codec->sample_rate = ((get_be32(pb) >> 16));
832
833 switch (st->codec->codec_id) {
b72708f8
BC
834 case CODEC_ID_PCM_S8:
835 case CODEC_ID_PCM_U8:
836 if (st->codec->bits_per_sample == 16)
837 st->codec->codec_id = CODEC_ID_PCM_S16BE;
838 break;
0dd39bfe 839 case CODEC_ID_PCM_S16LE:
de23f234
BC
840 case CODEC_ID_PCM_S16BE:
841 if (st->codec->bits_per_sample == 8)
842 st->codec->codec_id = CODEC_ID_PCM_S8;
0299a87c
BC
843 else if (st->codec->bits_per_sample == 24)
844 st->codec->codec_id = CODEC_ID_PCM_S24BE;
de23f234 845 break;
53152765
BC
846 /* set values for old format before stsd version 1 appeared */
847 case CODEC_ID_MACE3:
848 sc->samples_per_frame = 6;
849 sc->bytes_per_frame = 2*st->codec->channels;
850 break;
851 case CODEC_ID_MACE6:
852 sc->samples_per_frame = 6;
853 sc->bytes_per_frame = 1*st->codec->channels;
854 break;
855 case CODEC_ID_ADPCM_IMA_QT:
856 sc->samples_per_frame = 64;
857 sc->bytes_per_frame = 34*st->codec->channels;
858 break;
cc326d2b
BC
859 case CODEC_ID_GSM:
860 sc->samples_per_frame = 160;
861 sc->bytes_per_frame = 33;
862 break;
de23f234
BC
863 default:
864 break;
6d6d7970 865 }
14342fd5 866
755bfeab 867 //Read QT version 1 fields. In version 0 these do not exist.
318c5e05 868 dprintf(c->fc, "version =%d, isom =%d\n",version,c->isom);
152e9a43 869 if(!c->isom) {
80c5b9a1 870 if(version==1) {
e14f79ed 871 sc->samples_per_frame = get_be32(pb);
80c5b9a1 872 get_be32(pb); /* bytes per packet */
e14f79ed 873 sc->bytes_per_frame = get_be32(pb);
80c5b9a1
BC
874 get_be32(pb); /* bytes per sample */
875 } else if(version==2) {
876 get_be32(pb); /* sizeof struct only */
877 st->codec->sample_rate = av_int2dbl(get_be64(pb)); /* float 64 */
878 st->codec->channels = get_be32(pb);
879 get_be32(pb); /* always 0x7F000000 */
880 get_be32(pb); /* bits per channel if sound is uncompressed */
881 get_be32(pb); /* lcpm format specific flag */
882 get_be32(pb); /* bytes per audio packet if constant */
883 get_be32(pb); /* lpcm frames per audio packet if constant */
884 }
152e9a43 885 }
9770089d
BC
886
887 bits_per_sample = av_get_bits_per_sample(st->codec->codec_id);
888 if (bits_per_sample) {
889 st->codec->bits_per_sample = bits_per_sample;
890 sc->sample_size = (bits_per_sample >> 3) * st->codec->channels;
891 }
cc8d87b7
MN
892 } else if(st->codec->codec_type==CODEC_TYPE_SUBTITLE){
893 st->codec->codec_id= id;
de23f234
BC
894 } else {
895 /* other codec type, just skip (rtp, mp4s, tmcd ...) */
896 url_fskip(pb, size - (url_ftell(pb) - start_pos));
6cea494e 897 }
de23f234
BC
898 /* this will read extra atoms at the end (wave, alac, damr, avcC, SMI ...) */
899 a.size = size - (url_ftell(pb) - start_pos);
9cf0419b
PI
900 if (a.size > 8) {
901 if (mov_read_default(c, pb, a) < 0)
902 return -1;
903 } else if (a.size > 0)
de23f234 904 url_fskip(pb, a.size);
6cea494e 905 }
115329f1 906
60f5c96e 907 if(st->codec->codec_type==CODEC_TYPE_AUDIO && st->codec->sample_rate==0 && sc->time_scale>1)
302c389e 908 st->codec->sample_rate= sc->time_scale;
e31bd3e3 909
d00f8e17 910 /* special codec parameters handling */
e31bd3e3 911 switch (st->codec->codec_id) {
989ac5a6 912#ifdef CONFIG_DV_DEMUXER
b60c0454
BC
913 case CODEC_ID_DVAUDIO:
914 c->dv_fctx = av_alloc_format_context();
915 c->dv_demux = dv_init_demux(c->dv_fctx);
916 if (!c->dv_demux) {
917 av_log(c->fc, AV_LOG_ERROR, "dv demux context init error\n");
918 return -1;
919 }
920 sc->dv_audio_container = 1;
921 st->codec->codec_id = CODEC_ID_PCM_S16LE;
922 break;
989ac5a6 923#endif
b95319a2
BC
924 /* no ifdef since parameters are always those */
925 case CODEC_ID_AMR_WB:
926 st->codec->sample_rate= 16000;
927 st->codec->channels= 1; /* really needed */
928 break;
3f78a3a9
BC
929 case CODEC_ID_QCELP:
930 st->codec->frame_size = sc->samples_per_frame;
931 st->need_parsing= AVSTREAM_PARSE_FULL;
b95319a2
BC
932 case CODEC_ID_AMR_NB:
933 st->codec->sample_rate= 8000;
934 st->codec->channels= 1; /* really needed */
935 break;
a41104f8 936 case CODEC_ID_MP2:
c59f24e6 937 case CODEC_ID_MP3:
95a07973 938 st->codec->codec_type = CODEC_TYPE_AUDIO; /* force type after stsd for m1a hdlr */
57004ff1 939 st->need_parsing = AVSTREAM_PARSE_FULL;
a41104f8 940 break;
5610f20e 941 case CODEC_ID_GSM:
74e9b9ae
BC
942 case CODEC_ID_ADPCM_MS:
943 case CODEC_ID_ADPCM_IMA_WAV:
944 st->codec->block_align = sc->bytes_per_frame;
945 break;
be511925
BC
946 case CODEC_ID_ALAC:
947 if (st->codec->extradata_size == 36)
948 st->codec->frame_size = AV_RB32((st->codec->extradata+12));
949 break;
e31bd3e3
BC
950 default:
951 break;
952 }
5cd62665 953
6cea494e
ZK
954 return 0;
955}
956
5ca1d879 957static int mov_read_stsc(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
6cea494e 958{
5ca1d879 959 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
e4141433 960 MOVStreamContext *sc = st->priv_data;
568e18b1 961 unsigned int i, entries;
b6a17df4 962
6cea494e 963 get_byte(pb); /* version */
23f08617 964 get_be24(pb); /* flags */
6cea494e
ZK
965
966 entries = get_be32(pb);
115329f1 967
e23848a4 968 if(entries >= UINT_MAX / sizeof(MOV_stsc_t))
568e18b1 969 return -1;
115329f1 970
f8c18cd7
BC
971 dprintf(c->fc, "track[%i].stsc.entries = %i\n", c->fc->nb_streams-1, entries);
972
6cea494e 973 sc->sample_to_chunk_sz = entries;
e23848a4 974 sc->sample_to_chunk = av_malloc(entries * sizeof(MOV_stsc_t));
b6a17df4
ZK
975 if (!sc->sample_to_chunk)
976 return -1;
6cea494e
ZK
977 for(i=0; i<entries; i++) {
978 sc->sample_to_chunk[i].first = get_be32(pb);
979 sc->sample_to_chunk[i].count = get_be32(pb);
980 sc->sample_to_chunk[i].id = get_be32(pb);
6cea494e
ZK
981 }
982 return 0;
983}
984
247d56f5
BB
985static int mov_read_stss(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
986{
987 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
e4141433 988 MOVStreamContext *sc = st->priv_data;
568e18b1 989 unsigned int i, entries;
247d56f5 990
247d56f5 991 get_byte(pb); /* version */
23f08617 992 get_be24(pb); /* flags */
247d56f5
BB
993
994 entries = get_be32(pb);
115329f1 995
1c02d96f 996 if(entries >= UINT_MAX / sizeof(int))
568e18b1 997 return -1;
115329f1 998
247d56f5 999 sc->keyframe_count = entries;
f8c18cd7
BC
1000
1001 dprintf(c->fc, "keyframe_count = %d\n", sc->keyframe_count);
1002
1c02d96f 1003 sc->keyframes = av_malloc(entries * sizeof(int));
247d56f5
BB
1004 if (!sc->keyframes)
1005 return -1;
1006 for(i=0; i<entries; i++) {
1007 sc->keyframes[i] = get_be32(pb);
f8c18cd7 1008 //dprintf(c->fc, "keyframes[]=%d\n", sc->keyframes[i]);
247d56f5
BB
1009 }
1010 return 0;
1011}
1012
5ca1d879 1013static int mov_read_stsz(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
6cea494e 1014{
5ca1d879 1015 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
e4141433 1016 MOVStreamContext *sc = st->priv_data;
b72708f8 1017 unsigned int i, entries, sample_size;
b6a17df4 1018
6cea494e 1019 get_byte(pb); /* version */
23f08617 1020 get_be24(pb); /* flags */
5cd62665 1021
b72708f8
BC
1022 sample_size = get_be32(pb);
1023 if (!sc->sample_size) /* do not overwrite value computed in stsd */
1024 sc->sample_size = sample_size;
6cea494e 1025 entries = get_be32(pb);
1c02d96f 1026 if(entries >= UINT_MAX / sizeof(int))
568e18b1
MN
1027 return -1;
1028
6cea494e 1029 sc->sample_count = entries;
b72708f8
BC
1030 if (sample_size)
1031 return 0;
1032
f8c18cd7
BC
1033 dprintf(c->fc, "sample_size = %d sample_count = %d\n", sc->sample_size, sc->sample_count);
1034
1c02d96f 1035 sc->sample_sizes = av_malloc(entries * sizeof(int));
b6a17df4
ZK
1036 if (!sc->sample_sizes)
1037 return -1;
eb61405a 1038 for(i=0; i<entries; i++)
6cea494e 1039 sc->sample_sizes[i] = get_be32(pb);
6cea494e
ZK
1040 return 0;
1041}
1042
5ca1d879 1043static int mov_read_stts(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
0147f198 1044{
5ca1d879 1045 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
e4141433 1046 MOVStreamContext *sc = st->priv_data;
568e18b1 1047 unsigned int i, entries;
d957696f
MN
1048 int64_t duration=0;
1049 int64_t total_sample_count=0;
b6a17df4 1050
0147f198 1051 get_byte(pb); /* version */
23f08617 1052 get_be24(pb); /* flags */
0147f198 1053 entries = get_be32(pb);
e23848a4 1054 if(entries >= UINT_MAX / sizeof(MOV_stts_t))
568e18b1 1055 return -1;
891f64b3 1056
cd7352d5 1057 sc->stts_count = entries;
e23848a4 1058 sc->stts_data = av_malloc(entries * sizeof(MOV_stts_t));
c1da59fa
BC
1059 if (!sc->stts_data)
1060 return -1;
f8c18cd7 1061 dprintf(c->fc, "track[%i].stts.entries = %i\n", c->fc->nb_streams-1, entries);
cd7352d5
MN
1062
1063 sc->time_rate=0;
1064
0147f198 1065 for(i=0; i<entries; i++) {
cd461d48
MN
1066 int sample_duration;
1067 int sample_count;
0147f198 1068
891f64b3 1069 sample_count=get_be32(pb);
0147f198 1070 sample_duration = get_be32(pb);
cd7352d5
MN
1071 sc->stts_data[i].count= sample_count;
1072 sc->stts_data[i].duration= sample_duration;
1073
1074 sc->time_rate= ff_gcd(sc->time_rate, sample_duration);
961e0ccd 1075
318c5e05 1076 dprintf(c->fc, "sample_count=%d, sample_duration=%d\n",sample_count,sample_duration);
4e5ef14f 1077
7e815047 1078 duration+=(int64_t)sample_duration*sample_count;
891f64b3 1079 total_sample_count+=sample_count;
891f64b3 1080 }
1081
961e0ccd
MN
1082 st->nb_frames= total_sample_count;
1083 if(duration)
1084 st->duration= duration;
0147f198
FR
1085 return 0;
1086}
1087
c4ac052b
MN
1088static int mov_read_ctts(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1089{
70a61ed4 1090 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
e4141433 1091 MOVStreamContext *sc = st->priv_data;
c4ac052b
MN
1092 unsigned int i, entries;
1093
c4ac052b 1094 get_byte(pb); /* version */
23f08617 1095 get_be24(pb); /* flags */
c4ac052b 1096 entries = get_be32(pb);
e23848a4 1097 if(entries >= UINT_MAX / sizeof(MOV_stts_t))
c4ac052b
MN
1098 return -1;
1099
70a61ed4 1100 sc->ctts_count = entries;
e23848a4 1101 sc->ctts_data = av_malloc(entries * sizeof(MOV_stts_t));
c1da59fa
BC
1102 if (!sc->ctts_data)
1103 return -1;
318c5e05 1104 dprintf(c->fc, "track[%i].ctts.entries = %i\n", c->fc->nb_streams-1, entries);
4e5ef14f 1105
c4ac052b 1106 for(i=0; i<entries; i++) {
70a61ed4
MN
1107 int count =get_be32(pb);
1108 int duration =get_be32(pb);
1109
b0519015
BC
1110 if (duration < 0) {
1111 av_log(c->fc, AV_LOG_ERROR, "negative ctts, ignoring\n");
1112 sc->ctts_count = 0;
1113 url_fskip(pb, 8 * (entries - i - 1));
1114 break;
1115 }
70a61ed4
MN
1116 sc->ctts_data[i].count = count;
1117 sc->ctts_data[i].duration= duration;
1118
1119 sc->time_rate= ff_gcd(sc->time_rate, duration);
c4ac052b
MN
1120 }
1121 return 0;
1122}
1123
1e77810d
BC
1124static void mov_build_index(MOVContext *mov, AVStream *st)
1125{
1126 MOVStreamContext *sc = st->priv_data;
1127 offset_t current_offset;
1128 int64_t current_dts = 0;
1129 unsigned int stts_index = 0;
1130 unsigned int stsc_index = 0;
1131 unsigned int stss_index = 0;
1132 unsigned int i, j;
1133
d3bc61ac
BC
1134 /* only use old uncompressed audio chunk demuxing when stts specifies it */
1135 if (!(st->codec->codec_type == CODEC_TYPE_AUDIO &&
1136 sc->stts_count == 1 && sc->stts_data[0].duration == 1)) {
1e77810d
BC
1137 unsigned int current_sample = 0;
1138 unsigned int stts_sample = 0;
1139 unsigned int keyframe, sample_size;
1140 unsigned int distance = 0;
1141 int key_off = sc->keyframes && sc->keyframes[0] == 1;
1142
1143 st->nb_frames = sc->sample_count;
1144 for (i = 0; i < sc->chunk_count; i++) {
1145 current_offset = sc->chunk_offsets[i];
1146 if (stsc_index + 1 < sc->sample_to_chunk_sz &&
1147 i + 1 == sc->sample_to_chunk[stsc_index + 1].first)
1148 stsc_index++;
1149 for (j = 0; j < sc->sample_to_chunk[stsc_index].count; j++) {
1150 if (current_sample >= sc->sample_count) {
1151 av_log(mov->fc, AV_LOG_ERROR, "wrong sample count\n");
1152 goto out;
1153 }
1154 keyframe = !sc->keyframe_count || current_sample+key_off == sc->keyframes[stss_index];
1155 if (keyframe) {
1156 distance = 0;
1157 if (stss_index + 1 < sc->keyframe_count)
1158 stss_index++;
1159 }
1160 sample_size = sc->sample_size > 0 ? sc->sample_size : sc->sample_sizes[current_sample];
1161 dprintf(mov->fc, "AVIndex stream %d, sample %d, offset %"PRIx64", dts %"PRId64", "
1162 "size %d, distance %d, keyframe %d\n", st->index, current_sample,
1163 current_offset, current_dts, sample_size, distance, keyframe);
1164 if(sc->sample_to_chunk[stsc_index].id - 1 == sc->pseudo_stream_id)
1165 av_add_index_entry(st, current_offset, current_dts, sample_size, distance,
1166 keyframe ? AVINDEX_KEYFRAME : 0);
1167 current_offset += sample_size;
1168 assert(sc->stts_data[stts_index].duration % sc->time_rate == 0);
1169 current_dts += sc->stts_data[stts_index].duration / sc->time_rate;
1170 distance++;
1171 stts_sample++;
1172 current_sample++;
1173 if (stts_index + 1 < sc->stts_count && stts_sample == sc->stts_data[stts_index].count) {
1174 stts_sample = 0;
1175 stts_index++;
1176 }
1177 }
1178 }
1179 } else { /* read whole chunk */
1180 unsigned int chunk_samples, chunk_size, chunk_duration;
1181 unsigned int frames = 1;
1182 for (i = 0; i < sc->chunk_count; i++) {
1183 current_offset = sc->chunk_offsets[i];
1184 if (stsc_index + 1 < sc->sample_to_chunk_sz &&
1185 i + 1 == sc->sample_to_chunk[stsc_index + 1].first)
1186 stsc_index++;
1187 chunk_samples = sc->sample_to_chunk[stsc_index].count;
1188 /* get chunk size, beware of alaw/ulaw/mace */
1189 if (sc->samples_per_frame > 0 &&
1190 (chunk_samples * sc->bytes_per_frame % sc->samples_per_frame == 0)) {
1191 if (sc->samples_per_frame < 1024)
1192 chunk_size = chunk_samples * sc->bytes_per_frame / sc->samples_per_frame;
1193 else {
1194 chunk_size = sc->bytes_per_frame;
1195 frames = chunk_samples / sc->samples_per_frame;
1196 chunk_samples = sc->samples_per_frame;
1197 }
48a55290 1198 } else
1e77810d 1199 chunk_size = chunk_samples * sc->sample_size;
1e77810d
BC
1200 for (j = 0; j < frames; j++) {
1201 av_add_index_entry(st, current_offset, current_dts, chunk_size, 0, AVINDEX_KEYFRAME);
1202 /* get chunk duration */
1203 chunk_duration = 0;
1204 while (chunk_samples > 0) {
1205 if (chunk_samples < sc->stts_data[stts_index].count) {
1206 chunk_duration += sc->stts_data[stts_index].duration * chunk_samples;
1207 sc->stts_data[stts_index].count -= chunk_samples;
1208 break;
1209 } else {
1210 chunk_duration += sc->stts_data[stts_index].duration * chunk_samples;
1211 chunk_samples -= sc->stts_data[stts_index].count;
1212 if (stts_index + 1 < sc->stts_count)
1213 stts_index++;
1214 }
1215 }
1216 current_offset += sc->bytes_per_frame;
117a9190
BC
1217 dprintf(mov->fc, "AVIndex stream %d, chunk %d, offset %"PRIx64", dts %"PRId64", "
1218 "size %d, duration %d\n", st->index, i, current_offset, current_dts,
1219 chunk_size, chunk_duration);
1e77810d
BC
1220 assert(chunk_duration % sc->time_rate == 0);
1221 current_dts += chunk_duration / sc->time_rate;
1222 }
1223 }
1224 }
1225 out:
1226 /* adjust sample count to avindex entries */
1227 sc->sample_count = st->nb_index_entries;
1228}
bd991df2 1229
5ca1d879
ZK
1230static int mov_read_trak(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1231{
1232 AVStream *st;
1233 MOVStreamContext *sc;
bd991df2 1234 int ret;
5ca1d879 1235
5ca1d879 1236 st = av_new_stream(c->fc, c->fc->nb_streams);
3efe8848 1237 if (!st) return AVERROR(ENOMEM);
9a630c25 1238 sc = av_mallocz(sizeof(MOVStreamContext));
2922cbdb 1239 if (!sc) return AVERROR(ENOMEM);
5ca1d879 1240
5ca1d879 1241 st->priv_data = sc;
05edc1a7 1242 st->codec->codec_type = CODEC_TYPE_DATA;
25c4950e 1243 st->start_time = 0; /* XXX: check */
5ca1d879 1244
bd991df2
BC
1245 if ((ret = mov_read_default(c, pb, atom)) < 0)
1246 return ret;
1247
1248 /* sanity checks */
5e788d58
BC
1249 if(sc->chunk_count && (!sc->stts_count || !sc->sample_to_chunk_sz ||
1250 (!sc->sample_size && !sc->sample_count))){
6282c5f4
BC
1251 av_log(c->fc, AV_LOG_ERROR, "stream %d, missing mandatory atoms, broken header\n",
1252 st->index);
bd991df2
BC
1253 sc->sample_count = 0; //ignore track
1254 return 0;
1255 }
1256 if(!sc->time_rate)
1257 sc->time_rate=1;
1258 if(!sc->time_scale)
1259 sc->time_scale= c->time_scale;
1260 av_set_pts_info(st, 64, sc->time_rate, sc->time_scale);
1261
3f78a3a9
BC
1262 if (st->codec->codec_type == CODEC_TYPE_AUDIO &&
1263 !st->codec->frame_size && sc->stts_count == 1)
bd991df2
BC
1264 st->codec->frame_size = av_rescale(sc->time_rate, st->codec->sample_rate, sc->time_scale);
1265
1266 if(st->duration != AV_NOPTS_VALUE){
1267 assert(st->duration % sc->time_rate == 0);
1268 st->duration /= sc->time_rate;
1269 }
1270 sc->ffindex = st->index;
1271 mov_build_index(c, st);
1272
1273 if (sc->dref_id-1 < sc->drefs_count && sc->drefs[sc->dref_id-1].path) {
1274 if (url_fopen(&sc->pb, sc->drefs[sc->dref_id-1].path, URL_RDONLY) < 0)
9e81a0ce
BC
1275 av_log(c->fc, AV_LOG_ERROR, "stream %d, error opening file %s: %s\n",
1276 st->index, sc->drefs[sc->dref_id-1].path, strerror(errno));
bd991df2
BC
1277 } else
1278 sc->pb = c->fc->pb;
1279
1280 switch (st->codec->codec_id) {
1281#ifdef CONFIG_H261_DECODER
1282 case CODEC_ID_H261:
1283#endif
1284#ifdef CONFIG_H263_DECODER
1285 case CODEC_ID_H263:
1286#endif
1287#ifdef CONFIG_MPEG4_DECODER
1288 case CODEC_ID_MPEG4:
1289#endif
1290 st->codec->width= 0; /* let decoder init width/height */
1291 st->codec->height= 0;
1292 break;
1293#ifdef CONFIG_LIBFAAD
1294 case CODEC_ID_AAC:
1295#endif
1296#ifdef CONFIG_VORBIS_DECODER
1297 case CODEC_ID_VORBIS:
1298#endif
1299 case CODEC_ID_MP3ON4:
1300 st->codec->sample_rate= 0; /* let decoder init parameters properly */
1301 break;
1302 }
f9900374
BC
1303
1304 /* Do not need those anymore. */
1305 av_freep(&sc->chunk_offsets);
1306 av_freep(&sc->sample_to_chunk);
1307 av_freep(&sc->sample_sizes);
1308 av_freep(&sc->keyframes);
1309 av_freep(&sc->stts_data);
1310
bd991df2 1311 return 0;
5ca1d879
ZK
1312}
1313
d2ace376
BF
1314static void mov_parse_udta_string(ByteIOContext *pb, char *str, int size)
1315{
1316 uint16_t str_size = get_be16(pb); /* string length */;
1317
1318 get_be16(pb); /* skip language */
1319 get_buffer(pb, str, FFMIN(size, str_size));
1320}
1321
1322static int mov_read_udta(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1323{
1324 uint64_t end = url_ftell(pb) + atom.size;
1325
1326 while (url_ftell(pb) + 8 < end) {
1327 uint32_t tag_size = get_be32(pb);
1328 uint32_t tag = get_le32(pb);
1329 uint64_t next = url_ftell(pb) + tag_size - 8;
1330
aaac6c29
BC
1331 if (next > end) // stop if tag_size is wrong
1332 break;
1333
d2ace376
BF
1334 switch (tag) {
1335 case MKTAG(0xa9,'n','a','m'):
1336 mov_parse_udta_string(pb, c->fc->title, sizeof(c->fc->title));
1337 break;
1338 case MKTAG(0xa9,'w','r','t'):
1339 mov_parse_udta_string(pb, c->fc->author, sizeof(c->fc->author));
1340 break;
1341 case MKTAG(0xa9,'c','p','y'):
1342 mov_parse_udta_string(pb, c->fc->copyright, sizeof(c->fc->copyright));
1343 break;
1344 case MKTAG(0xa9,'i','n','f'):
1345 mov_parse_udta_string(pb, c->fc->comment, sizeof(c->fc->comment));
1346 break;
1347 default:
1348 break;
1349 }
1350
1351 url_fseek(pb, next, SEEK_SET);
1352 }
1353
1354 return 0;
1355}
1356
5ca1d879
ZK
1357static int mov_read_tkhd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1358{
f444b977
BC
1359 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
1360 int version = get_byte(pb);
5ca1d879 1361
23f08617 1362 get_be24(pb); /* flags */
5ca1d879
ZK
1363 /*
1364 MOV_TRACK_ENABLED 0x0001
1365 MOV_TRACK_IN_MOVIE 0x0002
1366 MOV_TRACK_IN_PREVIEW 0x0004
1367 MOV_TRACK_IN_POSTER 0x0008
1368 */
1369
1175561e
BC
1370 if (version == 1) {
1371 get_be64(pb);
1372 get_be64(pb);
1373 } else {
1374 get_be32(pb); /* creation time */
1375 get_be32(pb); /* modification time */
1376 }
5ca1d879
ZK
1377 st->id = (int)get_be32(pb); /* track id (NOT 0 !)*/
1378 get_be32(pb); /* reserved */
25c4950e 1379 st->start_time = 0; /* check */
117a9190
BC
1380 /* highlevel (considering edits) duration in movie timebase */
1381 (version == 1) ? get_be64(pb) : get_be32(pb);
5ca1d879
ZK
1382 get_be32(pb); /* reserved */
1383 get_be32(pb); /* reserved */
1384
1385 get_be16(pb); /* layer */
1386 get_be16(pb); /* alternate group */
1387 get_be16(pb); /* volume */
1388 get_be16(pb); /* reserved */
1389
1390 url_fskip(pb, 36); /* display matrix */
1391
1392 /* those are fixed-point */
c3daf8d8
BC
1393 get_be32(pb); /* track width */
1394 get_be32(pb); /* track height */
5ca1d879
ZK
1395
1396 return 0;
1397}
1398
61aedb0f
BC
1399static int mov_read_tfhd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1400{
1401 MOVFragment *frag = &c->fragment;
1402 MOVTrackExt *trex = NULL;
1403 int flags, track_id, i;
1404
1405 get_byte(pb); /* version */
1406 flags = get_be24(pb);
1407
1408 track_id = get_be32(pb);
1409 if (!track_id || track_id > c->fc->nb_streams)
1410 return -1;
1411 frag->track_id = track_id;
1412 for (i = 0; i < c->trex_count; i++)
1413 if (c->trex_data[i].track_id == frag->track_id) {
1414 trex = &c->trex_data[i];
1415 break;
1416 }
1417 if (!trex) {
1418 av_log(c->fc, AV_LOG_ERROR, "could not find corresponding trex\n");
1419 return -1;
1420 }
1421
1422 if (flags & 0x01) frag->base_data_offset = get_be64(pb);
1423 else frag->base_data_offset = frag->moof_offset;
1424 if (flags & 0x02) frag->stsd_id = get_be32(pb);
1425 else frag->stsd_id = trex->stsd_id;
1426
1427 frag->duration = flags & 0x08 ? get_be32(pb) : trex->duration;
1428 frag->size = flags & 0x10 ? get_be32(pb) : trex->size;
1429 frag->flags = flags & 0x20 ? get_be32(pb) : trex->flags;
1430 dprintf(c->fc, "frag flags 0x%x\n", frag->flags);
1431 return 0;
1432}
1433
1434static int mov_read_trex(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1435{
1436 MOVTrackExt *trex;
1437
1438 if ((uint64_t)c->trex_count+1 >= UINT_MAX / sizeof(*c->trex_data))
1439 return -1;
1440 c->trex_data = av_realloc(c->trex_data, (c->trex_count+1)*sizeof(*c->trex_data));
1441 if (!c->trex_data)
1442 return AVERROR(ENOMEM);
1443 trex = &c->trex_data[c->trex_count++];
1444 get_byte(pb); /* version */
1445 get_be24(pb); /* flags */
1446 trex->track_id = get_be32(pb);
1447 trex->stsd_id = get_be32(pb);
1448 trex->duration = get_be32(pb);
1449 trex->size = get_be32(pb);
1450 trex->flags = get_be32(pb);
1451 return 0;
1452}
1453
1454static int mov_read_trun(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1455{
1456 MOVFragment *frag = &c->fragment;
44e43aab
BC
1457 AVStream *st;
1458 MOVStreamContext *sc;
61aedb0f
BC
1459 uint64_t offset;
1460 int64_t dts;
1461 int data_offset = 0;
1462 unsigned entries, first_sample_flags = frag->flags;
1463 int flags, distance, i;
1464
44e43aab
BC
1465 if (!frag->track_id || frag->track_id > c->fc->nb_streams)
1466 return -1;
1467 st = c->fc->streams[frag->track_id-1];
1468 sc = st->priv_data;
61aedb0f
BC
1469 if (sc->pseudo_stream_id+1 != frag->stsd_id)
1470 return 0;
61aedb0f
BC
1471 get_byte(pb); /* version */
1472 flags = get_be24(pb);
1473 entries = get_be32(pb);
1474 dprintf(c->fc, "flags 0x%x entries %d\n", flags, entries);
1475 if (flags & 0x001) data_offset = get_be32(pb);
1476 if (flags & 0x004) first_sample_flags = get_be32(pb);
1477 if (flags & 0x800) {
1478 if ((uint64_t)entries+sc->ctts_count >= UINT_MAX/sizeof(*sc->ctts_data))
1479 return -1;
1480 sc->ctts_data = av_realloc(sc->ctts_data,
1481 (entries+sc->ctts_count)*sizeof(*sc->ctts_data));
1482 if (!sc->ctts_data)
1483 return AVERROR(ENOMEM);
1484 }
1485 dts = st->duration;
1486 offset = frag->base_data_offset + data_offset;
1487 distance = 0;
1488 dprintf(c->fc, "first sample flags 0x%x\n", first_sample_flags);
1489 for (i = 0; i < entries; i++) {
1490 unsigned sample_size = frag->size;
1491 int sample_flags = i ? frag->flags : first_sample_flags;
1492 unsigned sample_duration = frag->duration;
1493 int keyframe;
1494
1495 if (flags & 0x100) sample_duration = get_be32(pb);
1496 if (flags & 0x200) sample_size = get_be32(pb);
1497 if (flags & 0x400) sample_flags = get_be32(pb);
1498 if (flags & 0x800) {
1499 sc->ctts_data[sc->ctts_count].count = 1;
1500 sc->ctts_data[sc->ctts_count].duration = get_be32(pb);
1501 sc->ctts_count++;
1502 }
1503 if ((keyframe = st->codec->codec_type == CODEC_TYPE_AUDIO ||
1504 (flags & 0x004 && !i && !sample_flags) || sample_flags & 0x2000000))
1505 distance = 0;
1506 av_add_index_entry(st, offset, dts, sample_size, distance,
1507 keyframe ? AVINDEX_KEYFRAME : 0);
1508 dprintf(c->fc, "AVIndex stream %d, sample %d, offset %"PRIx64", dts %"PRId64", "
1509 "size %d, distance %d, keyframe %d\n", st->index, sc->sample_count+i,
1510 offset, dts, sample_size, distance, keyframe);
1511 distance++;
1512 assert(sample_duration % sc->time_rate == 0);
1513 dts += sample_duration / sc->time_rate;
1514 offset += sample_size;
1515 }
1516 frag->moof_offset = offset;
1517 sc->sample_count = st->nb_index_entries;
1518 st->duration = dts;
1519 return 0;
1520}
1521
5ca1d879
ZK
1522/* this atom should be null (from specs), but some buggy files put the 'moov' atom inside it... */
1523/* like the files created with Adobe Premiere 5.0, for samples see */
1524/* http://graphics.tudelft.nl/~wouter/publications/soundtests/ */
1525static int mov_read_wide(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1526{
1527 int err;
5ca1d879 1528
5ca1d879
ZK
1529 if (atom.size < 8)
1530 return 0; /* continue */
1531 if (get_be32(pb) != 0) { /* 0 sized mdat atom... use the 'wide' atom size */
1532 url_fskip(pb, atom.size - 4);
1533 return 0;
1534 }
1535 atom.type = get_le32(pb);
1536 atom.offset += 8;
1537 atom.size -= 8;
fd6e513e 1538 if (atom.type != MKTAG('m', 'd', 'a', 't')) {
5ca1d879
ZK
1539 url_fskip(pb, atom.size);
1540 return 0;
1541 }
1542 err = mov_read_mdat(c, pb, atom);
5ca1d879
ZK
1543 return err;
1544}
1545
5ca1d879 1546static int mov_read_cmov(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
0147f198 1547{
d966b2f0 1548#ifdef CONFIG_ZLIB
0147f198 1549 ByteIOContext ctx;
b6a17df4
ZK
1550 uint8_t *cmov_data;
1551 uint8_t *moov_data; /* uncompressed data */
0147f198
FR
1552 long cmov_len, moov_len;
1553 int ret;
b6a17df4 1554
0147f198
FR
1555 get_be32(pb); /* dcom atom */
1556 if (get_le32(pb) != MKTAG( 'd', 'c', 'o', 'm' ))
1557 return -1;
1558 if (get_le32(pb) != MKTAG( 'z', 'l', 'i', 'b' )) {
4e5ef14f 1559 av_log(NULL, AV_LOG_ERROR, "unknown compression for cmov atom !");
0147f198
FR
1560 return -1;
1561 }
1562 get_be32(pb); /* cmvd atom */
1563 if (get_le32(pb) != MKTAG( 'c', 'm', 'v', 'd' ))
1564 return -1;
1565 moov_len = get_be32(pb); /* uncompressed size */
5ca1d879 1566 cmov_len = atom.size - 6 * 4;
5cd62665 1567
9a630c25 1568 cmov_data = av_malloc(cmov_len);
0147f198
FR
1569 if (!cmov_data)
1570 return -1;
9a630c25 1571 moov_data = av_malloc(moov_len);
0147f198
FR
1572 if (!moov_data) {
1573 av_free(cmov_data);
1574 return -1;
1575 }
1576 get_buffer(pb, cmov_data, cmov_len);
b6a17df4 1577 if(uncompress (moov_data, (uLongf *) &moov_len, (const Bytef *)cmov_data, cmov_len) != Z_OK)
0147f198 1578 return -1;
942f3bb5 1579 if(init_put_byte(&ctx, moov_data, moov_len, 0, NULL, NULL, NULL, NULL) != 0)
0147f198 1580 return -1;
5ca1d879
ZK
1581 atom.type = MKTAG( 'm', 'o', 'o', 'v' );
1582 atom.offset = 0;
1583 atom.size = moov_len;
9ed83b0a 1584#ifdef DEBUG
dbb4f00a 1585// { int fd = open("/tmp/uncompheader.mov", O_WRONLY | O_CREAT); write(fd, moov_data, moov_len); close(fd); }
9ed83b0a 1586#endif
5ca1d879 1587 ret = mov_read_default(c, &ctx, atom);
0147f198
FR
1588 av_free(moov_data);
1589 av_free(cmov_data);
1590 return ret;
d966b2f0
BC
1591#else
1592 av_log(c->fc, AV_LOG_ERROR, "this file requires zlib support compiled in\n");
1593 return -1;
0147f198 1594#endif
d966b2f0 1595}
0147f198 1596
baf25c9d
GC
1597/* edit list atom */
1598static int mov_read_elst(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1599{
7c622eed 1600 MOVStreamContext *sc = c->fc->streams[c->fc->nb_streams-1]->priv_data;
e0977c80
BC
1601 int i, edit_count;
1602
1603 get_byte(pb); /* version */
23f08617 1604 get_be24(pb); /* flags */
7c622eed 1605 edit_count= sc->edit_count = get_be32(pb); /* entries */
e0977c80
BC
1606
1607 for(i=0; i<edit_count; i++){
d435e520 1608 int time;
e0977c80 1609 get_be32(pb); /* Track duration */
d435e520 1610 time = get_be32(pb); /* Media time */
e0977c80 1611 get_be32(pb); /* Media rate */
d435e520
BC
1612 if (time != 0)
1613 av_log(c->fc, AV_LOG_WARNING, "edit list not starting at 0, "
1614 "a/v desync might occur, patch welcome\n");
e0977c80 1615 }
7c622eed 1616 dprintf(c->fc, "track[%i].edit_count = %i\n", c->fc->nb_streams-1, sc->edit_count);
e0977c80 1617 return 0;
baf25c9d
GC
1618}
1619
6cea494e 1620static const MOVParseTableEntry mov_default_parse_table[] = {
5ca1d879 1621{ MKTAG( 'c', 'o', '6', '4' ), mov_read_stco },
c4ac052b 1622{ MKTAG( 'c', 't', 't', 's' ), mov_read_ctts }, /* composition time to sample */
221e21b7
BC
1623{ MKTAG( 'd', 'i', 'n', 'f' ), mov_read_default },
1624{ MKTAG( 'd', 'r', 'e', 'f' ), mov_read_dref },
5ca1d879 1625{ MKTAG( 'e', 'd', 't', 's' ), mov_read_default },
58e555d4 1626{ MKTAG( 'e', 'l', 's', 't' ), mov_read_elst },
de23f234 1627{ MKTAG( 'e', 'n', 'd', 'a' ), mov_read_enda },
9a63497b 1628{ MKTAG( 'f', 'i', 'e', 'l' ), mov_read_extradata },
4ea28253 1629{ MKTAG( 'f', 't', 'y', 'p' ), mov_read_ftyp },
bde24601 1630{ MKTAG( 'g', 'l', 'b', 'l' ), mov_read_glbl },
5ca1d879 1631{ MKTAG( 'h', 'd', 'l', 'r' ), mov_read_hdlr },
014a5102 1632{ MKTAG( 'j', 'p', '2', 'h' ), mov_read_extradata },
5ca1d879
ZK
1633{ MKTAG( 'm', 'd', 'a', 't' ), mov_read_mdat },
1634{ MKTAG( 'm', 'd', 'h', 'd' ), mov_read_mdhd },
1635{ MKTAG( 'm', 'd', 'i', 'a' ), mov_read_default },
1636{ MKTAG( 'm', 'i', 'n', 'f' ), mov_read_default },
61aedb0f 1637{ MKTAG( 'm', 'o', 'o', 'f' ), mov_read_moof },
5ca1d879 1638{ MKTAG( 'm', 'o', 'o', 'v' ), mov_read_moov },
61aedb0f 1639{ MKTAG( 'm', 'v', 'e', 'x' ), mov_read_default },
5ca1d879 1640{ MKTAG( 'm', 'v', 'h', 'd' ), mov_read_mvhd },
169eb021 1641{ MKTAG( 'S', 'M', 'I', ' ' ), mov_read_smi }, /* Sorenson extension ??? */
014a5102 1642{ MKTAG( 'a', 'l', 'a', 'c' ), mov_read_extradata }, /* alac specific atom */
bde24601 1643{ MKTAG( 'a', 'v', 'c', 'C' ), mov_read_glbl },
5ca1d879
ZK
1644{ MKTAG( 's', 't', 'b', 'l' ), mov_read_default },
1645{ MKTAG( 's', 't', 'c', 'o' ), mov_read_stco },
5ca1d879
ZK
1646{ MKTAG( 's', 't', 's', 'c' ), mov_read_stsc },
1647{ MKTAG( 's', 't', 's', 'd' ), mov_read_stsd }, /* sample description */
247d56f5 1648{ MKTAG( 's', 't', 's', 's' ), mov_read_stss }, /* sync sample */
5ca1d879
ZK
1649{ MKTAG( 's', 't', 's', 'z' ), mov_read_stsz }, /* sample size */
1650{ MKTAG( 's', 't', 't', 's' ), mov_read_stts },
1651{ MKTAG( 't', 'k', 'h', 'd' ), mov_read_tkhd }, /* track header */
61aedb0f 1652{ MKTAG( 't', 'f', 'h', 'd' ), mov_read_tfhd }, /* track fragment header */
5ca1d879 1653{ MKTAG( 't', 'r', 'a', 'k' ), mov_read_trak },
61aedb0f
BC
1654{ MKTAG( 't', 'r', 'a', 'f' ), mov_read_default },
1655{ MKTAG( 't', 'r', 'e', 'x' ), mov_read_trex },
1656{ MKTAG( 't', 'r', 'u', 'n' ), mov_read_trun },
d2ace376 1657{ MKTAG( 'u', 'd', 't', 'a' ), mov_read_udta },
d9b1c197 1658{ MKTAG( 'w', 'a', 'v', 'e' ), mov_read_wave },
5ca1d879 1659{ MKTAG( 'e', 's', 'd', 's' ), mov_read_esds },
5ca1d879 1660{ MKTAG( 'w', 'i', 'd', 'e' ), mov_read_wide }, /* place holder */
5ca1d879 1661{ MKTAG( 'c', 'm', 'o', 'v' ), mov_read_cmov },
bcfe2ba0 1662{ 0, NULL }
6cea494e
ZK
1663};
1664
c9a65ca8
FB
1665static int mov_probe(AVProbeData *p)
1666{
0e7eed09
FB
1667 unsigned int offset;
1668 uint32_t tag;
2497479f 1669 int score = 0;
3ffe3793 1670
c9a65ca8 1671 /* check file header */
0e7eed09
FB
1672 offset = 0;
1673 for(;;) {
1674 /* ignore invalid offset */
1675 if ((offset + 8) > (unsigned int)p->buf_size)
2497479f 1676 return score;
fead30d4 1677 tag = AV_RL32(p->buf + offset + 4);
0e7eed09 1678 switch(tag) {
2497479f 1679 /* check for obvious tags */
fc5188f3 1680 case MKTAG( 'j', 'P', ' ', ' ' ): /* jpeg 2000 signature */
0e7eed09 1681 case MKTAG( 'm', 'o', 'o', 'v' ):
8b879f18
FR
1682 case MKTAG( 'm', 'd', 'a', 't' ):
1683 case MKTAG( 'p', 'n', 'o', 't' ): /* detect movs with preview pics like ew.mov and april.mov */
bc634f6f 1684 case MKTAG( 'u', 'd', 't', 'a' ): /* Packet Video PVAuthor adds this and a lot of more junk */
3ffe3793 1685 return AVPROBE_SCORE_MAX;
2497479f 1686 /* those are more common words, so rate then a bit less */
263a93ec 1687 case MKTAG( 'e', 'd', 'i', 'w' ): /* xdcam files have reverted first tags */
2497479f
FR
1688 case MKTAG( 'w', 'i', 'd', 'e' ):
1689 case MKTAG( 'f', 'r', 'e', 'e' ):
1690 case MKTAG( 'j', 'u', 'n', 'k' ):
1691 case MKTAG( 'p', 'i', 'c', 't' ):
1692 return AVPROBE_SCORE_MAX - 5;
da00a1bd 1693 case MKTAG(0x82,0x82,0x7f,0x7d ):
0e7eed09 1694 case MKTAG( 'f', 't', 'y', 'p' ):
5ca1d879 1695 case MKTAG( 's', 'k', 'i', 'p' ):
0d23cb84 1696 case MKTAG( 'u', 'u', 'i', 'd' ):
7344dac4 1697 case MKTAG( 'p', 'r', 'f', 'l' ):
fead30d4 1698 offset = AV_RB32(p->buf+offset) + offset;
2497479f
FR
1699 /* if we only find those cause probedata is too small at least rate them */
1700 score = AVPROBE_SCORE_MAX - 50;
0e7eed09
FB
1701 break;
1702 default:
1703 /* unrecognized tag */
2497479f 1704 return score;
0e7eed09 1705 }
3ffe3793 1706 }
2497479f 1707 return score;
c9a65ca8
FB
1708}
1709
a266644f 1710static int mov_read_header(AVFormatContext *s, AVFormatParameters *ap)
6cea494e 1711{
e4141433 1712 MOVContext *mov = s->priv_data;
899681cd 1713 ByteIOContext *pb = s->pb;
f9900374 1714 int err;
5ca1d879 1715 MOV_atom_t atom = { 0, 0, 0 };
6cea494e 1716
6cea494e 1717 mov->fc = s;
117a9190
BC
1718 /* .mov and .mp4 aren't streamable anyway (only progressive download if moov is before mdat) */
1719 if(!url_is_streamed(pb))
bb270c08 1720 atom.size = url_fsize(pb);
6cea494e 1721 else
fa22ca22 1722 atom.size = INT64_MAX;
6cea494e 1723
6cea494e 1724 /* check MOV header */
612b5cbb
BC
1725 if ((err = mov_read_default(mov, pb, atom)) < 0) {
1726 av_log(s, AV_LOG_ERROR, "error reading header: %d\n", err);
1727 return err;
1728 }
1729 if (!mov->found_moov) {
1730 av_log(s, AV_LOG_ERROR, "moov atom not found\n");
bb270c08 1731 return -1;
6cea494e 1732 }
0265fe81 1733 dprintf(mov->fc, "on_parse_exit_offset=%lld\n", url_ftell(pb));
4e5ef14f 1734
6cea494e
ZK
1735 return 0;
1736}
1737
a266644f 1738static int mov_read_packet(AVFormatContext *s, AVPacket *pkt)
6cea494e 1739{
b72708f8
BC
1740 MOVContext *mov = s->priv_data;
1741 MOVStreamContext *sc = 0;
1742 AVIndexEntry *sample = 0;
86d8602f 1743 int64_t best_dts = INT64_MAX;
b72708f8 1744 int i;
433aeb62 1745 retry:
11f16b66 1746 for (i = 0; i < s->nb_streams; i++) {
7c622eed
BC
1747 AVStream *st = s->streams[i];
1748 MOVStreamContext *msc = st->priv_data;
221e21b7 1749 if (st->discard != AVDISCARD_ALL && msc->pb && msc->current_sample < msc->sample_count) {
7c622eed 1750 AVIndexEntry *current_sample = &st->index_entries[msc->current_sample];
29c90869
BC
1751 int64_t dts = av_rescale(current_sample->timestamp * (int64_t)msc->time_rate,
1752 AV_TIME_BASE, msc->time_scale);
1c02d96f 1753 dprintf(s, "stream %d, sample %d, dts %"PRId64"\n", i, msc->current_sample, dts);
687f35f3
BC
1754 if (!sample || (url_is_streamed(s->pb) && current_sample->pos < sample->pos) ||
1755 (!url_is_streamed(s->pb) &&
221e21b7 1756 ((msc->pb != s->pb && dts < best_dts) || (msc->pb == s->pb &&
687f35f3 1757 ((FFABS(best_dts - dts) <= AV_TIME_BASE && current_sample->pos < sample->pos) ||
221e21b7 1758 (FFABS(best_dts - dts) > AV_TIME_BASE && dts < best_dts)))))) {
b72708f8
BC
1759 sample = current_sample;
1760 best_dts = dts;
1761 sc = msc;
86d8602f 1762 }
6cea494e 1763 }
6cea494e 1764 }
433aeb62
BC
1765 if (!sample) {
1766 mov->found_mdat = 0;
1767 if (!url_is_streamed(s->pb) ||
1768 mov_read_default(mov, s->pb, (MOV_atom_t){ 0, 0, INT64_MAX }) < 0 ||
1769 url_feof(s->pb))
1770 return -1;
1771 dprintf(s, "read fragments, offset 0x%llx\n", url_ftell(s->pb));
1772 goto retry;
1773 }
b72708f8
BC
1774 /* must be done just before reading, to avoid infinite loop on sample */
1775 sc->current_sample++;
221e21b7 1776 if (url_fseek(sc->pb, sample->pos, SEEK_SET) != sample->pos) {
29c90869
BC
1777 av_log(mov->fc, AV_LOG_ERROR, "stream %d, offset 0x%"PRIx64": partial file\n",
1778 sc->ffindex, sample->pos);
bb270c08 1779 return -1;
6cea494e 1780 }
221e21b7 1781 av_get_packet(sc->pb, pkt, sample->size);
312954f0 1782#ifdef CONFIG_DV_DEMUXER
56ea717b
BC
1783 if (mov->dv_demux && sc->dv_audio_container) {
1784 dv_produce_packet(mov->dv_demux, pkt, pkt->data, pkt->size);
1785 av_free(pkt->data);
300aa2b0
BC
1786 pkt->size = 0;
1787 if (dv_get_packet(mov->dv_demux, pkt) < 0)
1788 return -1;
56ea717b 1789 }
312954f0 1790#endif
b72708f8
BC
1791 pkt->stream_index = sc->ffindex;
1792 pkt->dts = sample->timestamp;
1793 if (sc->ctts_data) {
1794 assert(sc->ctts_data[sc->sample_to_ctime_index].duration % sc->time_rate == 0);
1795 pkt->pts = pkt->dts + sc->ctts_data[sc->sample_to_ctime_index].duration / sc->time_rate;
1796 /* update ctts context */
1797 sc->sample_to_ctime_sample++;
29c90869
BC
1798 if (sc->sample_to_ctime_index < sc->ctts_count &&
1799 sc->ctts_data[sc->sample_to_ctime_index].count == sc->sample_to_ctime_sample) {
b72708f8
BC
1800 sc->sample_to_ctime_index++;
1801 sc->sample_to_ctime_sample = 0;
b565ea09 1802 }
b72708f8
BC
1803 } else {
1804 pkt->pts = pkt->dts;
b565ea09 1805 }
b72708f8
BC
1806 pkt->flags |= sample->flags & AVINDEX_KEYFRAME ? PKT_FLAG_KEY : 0;
1807 pkt->pos = sample->pos;
29c90869
BC
1808 dprintf(s, "stream %d, pts %"PRId64", dts %"PRId64", pos 0x%"PRIx64", duration %d\n",
1809 pkt->stream_index, pkt->pts, pkt->dts, pkt->pos, pkt->duration);
b72708f8
BC
1810 return 0;
1811}
3ffe3793 1812
b72708f8
BC
1813static int mov_seek_stream(AVStream *st, int64_t timestamp, int flags)
1814{
1815 MOVStreamContext *sc = st->priv_data;
1816 int sample, time_sample;
1817 int i;
115329f1 1818
b72708f8 1819 sample = av_index_search_timestamp(st, timestamp, flags);
318c5e05 1820 dprintf(st->codec, "stream %d, timestamp %"PRId64", sample %d\n", st->index, timestamp, sample);
b72708f8
BC
1821 if (sample < 0) /* not sure what to do */
1822 return -1;
1823 sc->current_sample = sample;
1c02d96f 1824 dprintf(st->codec, "stream %d, found sample %d\n", st->index, sc->current_sample);
b72708f8
BC
1825 /* adjust ctts index */
1826 if (sc->ctts_data) {
1827 time_sample = 0;
1828 for (i = 0; i < sc->ctts_count; i++) {
54a5c719
BC
1829 int next = time_sample + sc->ctts_data[i].count;
1830 if (next > sc->current_sample) {
b72708f8 1831 sc->sample_to_ctime_index = i;
54a5c719 1832 sc->sample_to_ctime_sample = sc->current_sample - time_sample;
b72708f8 1833 break;
115329f1 1834 }
54a5c719 1835 time_sample = next;
247d56f5 1836 }
247d56f5 1837 }
b72708f8 1838 return sample;
6cea494e
ZK
1839}
1840
961e0ccd 1841static int mov_read_seek(AVFormatContext *s, int stream_index, int64_t sample_time, int flags)
baf25c9d 1842{
b72708f8
BC
1843 AVStream *st;
1844 int64_t seek_timestamp, timestamp;
1845 int sample;
1846 int i;
baf25c9d 1847
b72708f8 1848 if (stream_index >= s->nb_streams)
baf25c9d 1849 return -1;
baf25c9d 1850
b72708f8
BC
1851 st = s->streams[stream_index];
1852 sample = mov_seek_stream(st, sample_time, flags);
1853 if (sample < 0)
baf25c9d 1854 return -1;
baf25c9d 1855
b72708f8
BC
1856 /* adjust seek timestamp to found sample timestamp */
1857 seek_timestamp = st->index_entries[sample].timestamp;
baf25c9d 1858
b72708f8
BC
1859 for (i = 0; i < s->nb_streams; i++) {
1860 st = s->streams[i];
1861 if (stream_index == i || st->discard == AVDISCARD_ALL)
1862 continue;
baf25c9d 1863
b72708f8
BC
1864 timestamp = av_rescale_q(seek_timestamp, s->streams[stream_index]->time_base, st->time_base);
1865 mov_seek_stream(st, timestamp, flags);
115329f1 1866 }
baf25c9d
GC
1867 return 0;
1868}
baf25c9d 1869
a266644f 1870static int mov_read_close(AVFormatContext *s)
6cea494e 1871{
221e21b7 1872 int i, j;
e4141433 1873 MOVContext *mov = s->priv_data;
11f16b66 1874 for(i=0; i<s->nb_streams; i++) {
7c622eed
BC
1875 MOVStreamContext *sc = s->streams[i]->priv_data;
1876 av_freep(&sc->ctts_data);
221e21b7
BC
1877 for (j=0; j<sc->drefs_count; j++)
1878 av_freep(&sc->drefs[j].path);
1879 av_freep(&sc->drefs);
1880 if (sc->pb && sc->pb != s->pb)
1881 url_fclose(sc->pb);
4440b118 1882 }
b60c0454
BC
1883 if(mov->dv_demux){
1884 for(i=0; i<mov->dv_fctx->nb_streams; i++){
1885 av_freep(&mov->dv_fctx->streams[i]->codec);
1886 av_freep(&mov->dv_fctx->streams[i]);
1887 }
1888 av_freep(&mov->dv_fctx);
1889 av_freep(&mov->dv_demux);
1890 }
61aedb0f 1891 av_freep(&mov->trex_data);
6cea494e
ZK
1892 return 0;
1893}
1894
ff70e601 1895AVInputFormat mov_demuxer = {
fc5188f3
BC
1896 "mov,mp4,m4a,3gp,3g2,mj2",
1897 "QuickTime/MPEG4/Motion JPEG 2000 format",
c9a65ca8
FB
1898 sizeof(MOVContext),
1899 mov_probe,
6cea494e
ZK
1900 mov_read_header,
1901 mov_read_packet,
1902 mov_read_close,
baf25c9d 1903 mov_read_seek,
6cea494e 1904};