3 * Copyright (c) 2001 Fabrice Bellard
4 * Copyright (c) 2009 Baptiste Coudurier <baptiste dot coudurier at gmail dot com>
6 * first version by Francois Revol <revol@free.fr>
7 * seek function by Gael Chardon <gael.dev@4now.net>
9 * This file is part of FFmpeg.
11 * FFmpeg is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU Lesser General Public
13 * License as published by the Free Software Foundation; either
14 * version 2.1 of the License, or (at your option) any later version.
16 * FFmpeg is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 * Lesser General Public License for more details.
21 * You should have received a copy of the GNU Lesser General Public
22 * License along with FFmpeg; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
30 //#define MOV_EXPORT_ALL_METADATA
32 #include "libavutil/attributes.h"
33 #include "libavutil/channel_layout.h"
34 #include "libavutil/display.h"
35 #include "libavutil/intreadwrite.h"
36 #include "libavutil/intfloat.h"
37 #include "libavutil/mathematics.h"
38 #include "libavutil/avstring.h"
39 #include "libavutil/dict.h"
40 #include "libavutil/opt.h"
41 #include "libavutil/timecode.h"
42 #include "libavcodec/ac3tab.h"
45 #include "avio_internal.h"
48 #include "libavcodec/get_bits.h"
51 #include "replaygain.h"
57 #include "qtpalette.h"
63 /* those functions parse an atom */
64 /* links atom IDs to parse functions */
65 typedef struct MOVParseTableEntry {
67 int (*parse)(MOVContext *ctx, AVIOContext *pb, MOVAtom atom);
70 static int mov_read_default(MOVContext *c, AVIOContext *pb, MOVAtom atom);
71 static int mov_read_mfra(MOVContext *c, AVIOContext *f);
73 static int mov_metadata_track_or_disc_number(MOVContext *c, AVIOContext *pb,
74 unsigned len, const char *key)
78 short current, total = 0;
79 avio_rb16(pb); // unknown
80 current = avio_rb16(pb);
82 total = avio_rb16(pb);
84 snprintf(buf, sizeof(buf), "%d", current);
86 snprintf(buf, sizeof(buf), "%d/%d", current, total);
87 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
88 av_dict_set(&c->fc->metadata, key, buf, 0);
93 static int mov_metadata_int8_bypass_padding(MOVContext *c, AVIOContext *pb,
94 unsigned len, const char *key)
96 /* bypass padding bytes */
101 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
102 av_dict_set_int(&c->fc->metadata, key, avio_r8(pb), 0);
107 static int mov_metadata_int8_no_padding(MOVContext *c, AVIOContext *pb,
108 unsigned len, const char *key)
110 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
111 av_dict_set_int(&c->fc->metadata, key, avio_r8(pb), 0);
116 static int mov_metadata_gnre(MOVContext *c, AVIOContext *pb,
117 unsigned len, const char *key)
121 avio_r8(pb); // unknown
124 if (genre < 1 || genre > ID3v1_GENRE_MAX)
126 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
127 av_dict_set(&c->fc->metadata, key, ff_id3v1_genre_str[genre-1], 0);
132 static const uint32_t mac_to_unicode[128] = {
133 0x00C4,0x00C5,0x00C7,0x00C9,0x00D1,0x00D6,0x00DC,0x00E1,
134 0x00E0,0x00E2,0x00E4,0x00E3,0x00E5,0x00E7,0x00E9,0x00E8,
135 0x00EA,0x00EB,0x00ED,0x00EC,0x00EE,0x00EF,0x00F1,0x00F3,
136 0x00F2,0x00F4,0x00F6,0x00F5,0x00FA,0x00F9,0x00FB,0x00FC,
137 0x2020,0x00B0,0x00A2,0x00A3,0x00A7,0x2022,0x00B6,0x00DF,
138 0x00AE,0x00A9,0x2122,0x00B4,0x00A8,0x2260,0x00C6,0x00D8,
139 0x221E,0x00B1,0x2264,0x2265,0x00A5,0x00B5,0x2202,0x2211,
140 0x220F,0x03C0,0x222B,0x00AA,0x00BA,0x03A9,0x00E6,0x00F8,
141 0x00BF,0x00A1,0x00AC,0x221A,0x0192,0x2248,0x2206,0x00AB,
142 0x00BB,0x2026,0x00A0,0x00C0,0x00C3,0x00D5,0x0152,0x0153,
143 0x2013,0x2014,0x201C,0x201D,0x2018,0x2019,0x00F7,0x25CA,
144 0x00FF,0x0178,0x2044,0x20AC,0x2039,0x203A,0xFB01,0xFB02,
145 0x2021,0x00B7,0x201A,0x201E,0x2030,0x00C2,0x00CA,0x00C1,
146 0x00CB,0x00C8,0x00CD,0x00CE,0x00CF,0x00CC,0x00D3,0x00D4,
147 0xF8FF,0x00D2,0x00DA,0x00DB,0x00D9,0x0131,0x02C6,0x02DC,
148 0x00AF,0x02D8,0x02D9,0x02DA,0x00B8,0x02DD,0x02DB,0x02C7,
151 static int mov_read_mac_string(MOVContext *c, AVIOContext *pb, int len,
152 char *dst, int dstlen)
155 char *end = dst+dstlen-1;
158 for (i = 0; i < len; i++) {
159 uint8_t t, c = avio_r8(pb);
160 if (c < 0x80 && p < end)
163 PUT_UTF8(mac_to_unicode[c-0x80], t, if (p < end) *p++ = t;);
169 static int mov_read_covr(MOVContext *c, AVIOContext *pb, int type, int len)
173 MOVStreamContext *sc;
178 case 0xd: id = AV_CODEC_ID_MJPEG; break;
179 case 0xe: id = AV_CODEC_ID_PNG; break;
180 case 0x1b: id = AV_CODEC_ID_BMP; break;
182 av_log(c->fc, AV_LOG_WARNING, "Unknown cover type: 0x%x.\n", type);
187 st = avformat_new_stream(c->fc, NULL);
189 return AVERROR(ENOMEM);
190 sc = av_mallocz(sizeof(*sc));
192 return AVERROR(ENOMEM);
195 ret = av_get_packet(pb, &pkt, len);
199 st->disposition |= AV_DISPOSITION_ATTACHED_PIC;
201 st->attached_pic = pkt;
202 st->attached_pic.stream_index = st->index;
203 st->attached_pic.flags |= AV_PKT_FLAG_KEY;
205 st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
206 st->codec->codec_id = id;
211 static int mov_metadata_raw(MOVContext *c, AVIOContext *pb,
212 unsigned len, const char *key)
214 char *value = av_malloc(len + 1);
216 return AVERROR(ENOMEM);
217 avio_read(pb, value, len);
219 return av_dict_set(&c->fc->metadata, key, value, AV_DICT_DONT_STRDUP_VAL);
222 static int mov_metadata_loci(MOVContext *c, AVIOContext *pb, unsigned len)
224 char language[4] = { 0 };
226 uint16_t langcode = 0;
227 double longitude, latitude;
228 const char *key = "location";
230 if (len < 4 + 2 + 1 + 1 + 4 + 4 + 4)
231 return AVERROR_INVALIDDATA;
233 avio_skip(pb, 4); // version+flags
234 langcode = avio_rb16(pb);
235 ff_mov_lang_to_iso639(langcode, language);
238 len -= avio_get_str(pb, len, buf, sizeof(buf)); // place name
240 return AVERROR_INVALIDDATA;
241 avio_skip(pb, 1); // role
245 return AVERROR_INVALIDDATA;
246 longitude = ((int32_t) avio_rb32(pb)) / (float) (1 << 16);
247 latitude = ((int32_t) avio_rb32(pb)) / (float) (1 << 16);
249 // Try to output in the same format as the ?xyz field
250 snprintf(buf, sizeof(buf), "%+08.4f%+09.4f/", latitude, longitude);
251 if (*language && strcmp(language, "und")) {
253 snprintf(key2, sizeof(key2), "%s-%s", key, language);
254 av_dict_set(&c->fc->metadata, key2, buf, 0);
256 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
257 return av_dict_set(&c->fc->metadata, key, buf, 0);
260 static int mov_read_udta_string(MOVContext *c, AVIOContext *pb, MOVAtom atom)
262 #ifdef MOV_EXPORT_ALL_METADATA
265 char key2[16], language[4] = {0};
267 const char *key = NULL;
268 uint16_t langcode = 0;
269 uint32_t data_type = 0, str_size, str_size_alloc;
270 int (*parse)(MOVContext*, AVIOContext*, unsigned, const char*) = NULL;
273 case MKTAG(0xa9,'n','a','m'): key = "title"; break;
274 case MKTAG(0xa9,'a','u','t'):
275 case MKTAG(0xa9,'A','R','T'): key = "artist"; break;
276 case MKTAG( 'a','A','R','T'): key = "album_artist"; break;
277 case MKTAG(0xa9,'w','r','t'): key = "composer"; break;
278 case MKTAG( 'c','p','i','l'): key = "compilation";
279 parse = mov_metadata_int8_no_padding; break;
280 case MKTAG( 'c','p','r','t'):
281 case MKTAG(0xa9,'c','p','y'): key = "copyright"; break;
282 case MKTAG(0xa9,'g','r','p'): key = "grouping"; break;
283 case MKTAG(0xa9,'l','y','r'): key = "lyrics"; break;
284 case MKTAG(0xa9,'c','m','t'):
285 case MKTAG(0xa9,'i','n','f'): key = "comment"; break;
286 case MKTAG(0xa9,'a','l','b'): key = "album"; break;
287 case MKTAG(0xa9,'d','a','y'): key = "date"; break;
288 case MKTAG(0xa9,'g','e','n'): key = "genre"; break;
289 case MKTAG( 'g','n','r','e'): key = "genre";
290 parse = mov_metadata_gnre; break;
291 case MKTAG(0xa9,'t','o','o'):
292 case MKTAG(0xa9,'s','w','r'): key = "encoder"; break;
293 case MKTAG(0xa9,'e','n','c'): key = "encoder"; break;
294 case MKTAG(0xa9,'m','a','k'): key = "make"; break;
295 case MKTAG(0xa9,'m','o','d'): key = "model"; break;
296 case MKTAG(0xa9,'x','y','z'): key = "location"; break;
297 case MKTAG( 'd','e','s','c'): key = "description";break;
298 case MKTAG( 'l','d','e','s'): key = "synopsis"; break;
299 case MKTAG( 't','v','s','h'): key = "show"; break;
300 case MKTAG( 't','v','e','n'): key = "episode_id";break;
301 case MKTAG( 't','v','n','n'): key = "network"; break;
302 case MKTAG( 't','r','k','n'): key = "track";
303 parse = mov_metadata_track_or_disc_number; break;
304 case MKTAG( 'd','i','s','k'): key = "disc";
305 parse = mov_metadata_track_or_disc_number; break;
306 case MKTAG( 't','v','e','s'): key = "episode_sort";
307 parse = mov_metadata_int8_bypass_padding; break;
308 case MKTAG( 't','v','s','n'): key = "season_number";
309 parse = mov_metadata_int8_bypass_padding; break;
310 case MKTAG( 's','t','i','k'): key = "media_type";
311 parse = mov_metadata_int8_no_padding; break;
312 case MKTAG( 'h','d','v','d'): key = "hd_video";
313 parse = mov_metadata_int8_no_padding; break;
314 case MKTAG( 'p','g','a','p'): key = "gapless_playback";
315 parse = mov_metadata_int8_no_padding; break;
316 case MKTAG( '@','P','R','M'):
317 return mov_metadata_raw(c, pb, atom.size, "premiere_version");
318 case MKTAG( '@','P','R','Q'):
319 return mov_metadata_raw(c, pb, atom.size, "quicktime_version");
320 case MKTAG( 'l','o','c','i'):
321 return mov_metadata_loci(c, pb, atom.size);
322 case MKTAG( 'X','M','P','_'):
323 return mov_metadata_raw(c, pb, atom.size, "xmp");
326 if (c->itunes_metadata && atom.size > 8) {
327 int data_size = avio_rb32(pb);
328 int tag = avio_rl32(pb);
329 if (tag == MKTAG('d','a','t','a')) {
330 data_type = avio_rb32(pb); // type
331 avio_rb32(pb); // unknown
332 str_size = data_size - 16;
335 if (atom.type == MKTAG('c', 'o', 'v', 'r')) {
336 int ret = mov_read_covr(c, pb, data_type, str_size);
338 av_log(c->fc, AV_LOG_ERROR, "Error parsing cover art.\n");
343 } else if (atom.size > 4 && key && !c->itunes_metadata) {
344 str_size = avio_rb16(pb); // string length
345 langcode = avio_rb16(pb);
346 ff_mov_lang_to_iso639(langcode, language);
349 str_size = atom.size;
351 #ifdef MOV_EXPORT_ALL_METADATA
353 snprintf(tmp_key, 5, "%.4s", (char*)&atom.type);
358 str_size_alloc = str_size << 1; // worst-case requirement for output string in case of utf8 coded input
359 str = av_malloc(str_size_alloc);
361 return AVERROR(ENOMEM);
366 return AVERROR_INVALIDDATA;
369 parse(c, pb, str_size, key);
371 if (data_type == 3 || (data_type == 0 && (langcode < 0x400 || langcode == 0x7fff))) { // MAC Encoded
372 mov_read_mac_string(c, pb, str_size, str, str_size_alloc);
374 int ret = avio_read(pb, str, str_size);
376 return ret < 0 ? ret : AVERROR_INVALIDDATA;
379 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
380 av_dict_set(&c->fc->metadata, key, str, 0);
381 if (*language && strcmp(language, "und")) {
382 snprintf(key2, sizeof(key2), "%s-%s", key, language);
383 av_dict_set(&c->fc->metadata, key2, str, 0);
386 av_dlog(c->fc, "lang \"%3s\" ", language);
387 av_dlog(c->fc, "tag \"%s\" value \"%s\" atom \"%.4s\" %d %"PRId64"\n",
388 key, str, (char*)&atom.type, str_size_alloc, atom.size);
395 static int mov_read_chpl(MOVContext *c, AVIOContext *pb, MOVAtom atom)
398 int i, nb_chapters, str_len, version;
401 if ((atom.size -= 5) < 0)
404 version = avio_r8(pb);
407 avio_rb32(pb); // ???
408 nb_chapters = avio_r8(pb);
410 for (i = 0; i < nb_chapters; i++) {
414 start = avio_rb64(pb);
415 str_len = avio_r8(pb);
417 if ((atom.size -= 9+str_len) < 0)
420 avio_read(pb, str, str_len);
422 avpriv_new_chapter(c->fc, i, (AVRational){1,10000000}, start, AV_NOPTS_VALUE, str);
427 #define MIN_DATA_ENTRY_BOX_SIZE 12
428 static int mov_read_dref(MOVContext *c, AVIOContext *pb, MOVAtom atom)
431 MOVStreamContext *sc;
434 if (c->fc->nb_streams < 1)
436 st = c->fc->streams[c->fc->nb_streams-1];
439 avio_rb32(pb); // version + flags
440 entries = avio_rb32(pb);
441 if (entries > (atom.size - 1) / MIN_DATA_ENTRY_BOX_SIZE + 1 ||
442 entries >= UINT_MAX / sizeof(*sc->drefs))
443 return AVERROR_INVALIDDATA;
446 sc->drefs = av_mallocz(entries * sizeof(*sc->drefs));
448 return AVERROR(ENOMEM);
449 sc->drefs_count = entries;
451 for (i = 0; i < sc->drefs_count; i++) {
452 MOVDref *dref = &sc->drefs[i];
453 uint32_t size = avio_rb32(pb);
454 int64_t next = avio_tell(pb) + size - 4;
457 return AVERROR_INVALIDDATA;
459 dref->type = avio_rl32(pb);
460 avio_rb32(pb); // version + flags
461 av_dlog(c->fc, "type %.4s size %d\n", (char*)&dref->type, size);
463 if (dref->type == MKTAG('a','l','i','s') && size > 150) {
464 /* macintosh alias record */
465 uint16_t volume_len, len;
470 volume_len = avio_r8(pb);
471 volume_len = FFMIN(volume_len, 27);
472 avio_read(pb, dref->volume, 27);
473 dref->volume[volume_len] = 0;
474 av_log(c->fc, AV_LOG_DEBUG, "volume %s, len %d\n", dref->volume, volume_len);
479 len = FFMIN(len, 63);
480 avio_read(pb, dref->filename, 63);
481 dref->filename[len] = 0;
482 av_log(c->fc, AV_LOG_DEBUG, "filename %s, len %d\n", dref->filename, len);
486 /* read next level up_from_alias/down_to_target */
487 dref->nlvl_from = avio_rb16(pb);
488 dref->nlvl_to = avio_rb16(pb);
489 av_log(c->fc, AV_LOG_DEBUG, "nlvl from %d, nlvl to %d\n",
490 dref->nlvl_from, dref->nlvl_to);
494 for (type = 0; type != -1 && avio_tell(pb) < next; ) {
497 type = avio_rb16(pb);
499 av_log(c->fc, AV_LOG_DEBUG, "type %d, len %d\n", type, len);
502 if (type == 2) { // absolute path
504 dref->path = av_mallocz(len+1);
506 return AVERROR(ENOMEM);
507 avio_read(pb, dref->path, len);
508 if (len > volume_len && !strncmp(dref->path, dref->volume, volume_len)) {
510 memmove(dref->path, dref->path+volume_len, len);
513 for (j = 0; j < len; j++)
514 if (dref->path[j] == ':')
516 av_log(c->fc, AV_LOG_DEBUG, "path %s\n", dref->path);
517 } else if (type == 0) { // directory name
519 dref->dir = av_malloc(len+1);
521 return AVERROR(ENOMEM);
522 if (avio_read(pb, dref->dir, len) != len)
523 return AVERROR_INVALIDDATA;
525 for (j = 0; j < len; j++)
526 if (dref->dir[j] == ':')
528 av_log(c->fc, AV_LOG_DEBUG, "dir %s\n", dref->dir);
533 avio_seek(pb, next, SEEK_SET);
538 static int mov_read_hdlr(MOVContext *c, AVIOContext *pb, MOVAtom atom)
542 uint32_t av_unused ctype;
546 if (c->fc->nb_streams < 1) // meta before first trak
549 st = c->fc->streams[c->fc->nb_streams-1];
551 avio_r8(pb); /* version */
552 avio_rb24(pb); /* flags */
555 ctype = avio_rl32(pb);
556 type = avio_rl32(pb); /* component subtype */
558 av_dlog(c->fc, "ctype= %.4s (0x%08x)\n", (char*)&ctype, ctype);
559 av_dlog(c->fc, "stype= %.4s\n", (char*)&type);
561 if (type == MKTAG('v','i','d','e'))
562 st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
563 else if (type == MKTAG('s','o','u','n'))
564 st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
565 else if (type == MKTAG('m','1','a',' '))
566 st->codec->codec_id = AV_CODEC_ID_MP2;
567 else if ((type == MKTAG('s','u','b','p')) || (type == MKTAG('c','l','c','p')))
568 st->codec->codec_type = AVMEDIA_TYPE_SUBTITLE;
570 avio_rb32(pb); /* component manufacture */
571 avio_rb32(pb); /* component flags */
572 avio_rb32(pb); /* component flags mask */
574 title_size = atom.size - 24;
575 if (title_size > 0) {
576 title_str = av_malloc(title_size + 1); /* Add null terminator */
578 return AVERROR(ENOMEM);
579 avio_read(pb, title_str, title_size);
580 title_str[title_size] = 0;
582 av_dict_set(&st->metadata, "handler_name", title_str +
583 (!c->isom && title_str[0] == title_size - 1), 0);
584 av_freep(&title_str);
590 int ff_mov_read_esds(AVFormatContext *fc, AVIOContext *pb)
595 if (fc->nb_streams < 1)
597 st = fc->streams[fc->nb_streams-1];
599 avio_rb32(pb); /* version + flags */
600 ff_mp4_read_descr(fc, pb, &tag);
601 if (tag == MP4ESDescrTag) {
602 ff_mp4_parse_es_descr(pb, NULL);
604 avio_rb16(pb); /* ID */
606 ff_mp4_read_descr(fc, pb, &tag);
607 if (tag == MP4DecConfigDescrTag)
608 ff_mp4_read_dec_config_descr(fc, st, pb);
612 static int mov_read_esds(MOVContext *c, AVIOContext *pb, MOVAtom atom)
614 return ff_mov_read_esds(c->fc, pb);
617 static int mov_read_dac3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
620 int ac3info, acmod, lfeon, bsmod;
622 if (c->fc->nb_streams < 1)
624 st = c->fc->streams[c->fc->nb_streams-1];
626 ac3info = avio_rb24(pb);
627 bsmod = (ac3info >> 14) & 0x7;
628 acmod = (ac3info >> 11) & 0x7;
629 lfeon = (ac3info >> 10) & 0x1;
630 st->codec->channels = ((int[]){2,1,2,3,3,4,4,5})[acmod] + lfeon;
631 st->codec->channel_layout = avpriv_ac3_channel_layout_tab[acmod];
633 st->codec->channel_layout |= AV_CH_LOW_FREQUENCY;
634 st->codec->audio_service_type = bsmod;
635 if (st->codec->channels > 1 && bsmod == 0x7)
636 st->codec->audio_service_type = AV_AUDIO_SERVICE_TYPE_KARAOKE;
641 static int mov_read_dec3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
644 int eac3info, acmod, lfeon, bsmod;
646 if (c->fc->nb_streams < 1)
648 st = c->fc->streams[c->fc->nb_streams-1];
650 /* No need to parse fields for additional independent substreams and its
651 * associated dependent substreams since libavcodec's E-AC-3 decoder
652 * does not support them yet. */
653 avio_rb16(pb); /* data_rate and num_ind_sub */
654 eac3info = avio_rb24(pb);
655 bsmod = (eac3info >> 12) & 0x1f;
656 acmod = (eac3info >> 9) & 0x7;
657 lfeon = (eac3info >> 8) & 0x1;
658 st->codec->channel_layout = avpriv_ac3_channel_layout_tab[acmod];
660 st->codec->channel_layout |= AV_CH_LOW_FREQUENCY;
661 st->codec->channels = av_get_channel_layout_nb_channels(st->codec->channel_layout);
662 st->codec->audio_service_type = bsmod;
663 if (st->codec->channels > 1 && bsmod == 0x7)
664 st->codec->audio_service_type = AV_AUDIO_SERVICE_TYPE_KARAOKE;
669 static int mov_read_chan(MOVContext *c, AVIOContext *pb, MOVAtom atom)
673 if (c->fc->nb_streams < 1)
675 st = c->fc->streams[c->fc->nb_streams-1];
680 /* skip version and flags */
683 ff_mov_read_chan(c->fc, pb, st, atom.size - 4);
688 static int mov_read_wfex(MOVContext *c, AVIOContext *pb, MOVAtom atom)
692 if (c->fc->nb_streams < 1)
694 st = c->fc->streams[c->fc->nb_streams-1];
696 if (ff_get_wav_header(pb, st->codec, atom.size) < 0) {
697 av_log(c->fc, AV_LOG_WARNING, "get_wav_header failed\n");
703 static int mov_read_pasp(MOVContext *c, AVIOContext *pb, MOVAtom atom)
705 const int num = avio_rb32(pb);
706 const int den = avio_rb32(pb);
709 if (c->fc->nb_streams < 1)
711 st = c->fc->streams[c->fc->nb_streams-1];
713 if ((st->sample_aspect_ratio.den != 1 || st->sample_aspect_ratio.num) && // default
714 (den != st->sample_aspect_ratio.den || num != st->sample_aspect_ratio.num)) {
715 av_log(c->fc, AV_LOG_WARNING,
716 "sample aspect ratio already set to %d:%d, ignoring 'pasp' atom (%d:%d)\n",
717 st->sample_aspect_ratio.num, st->sample_aspect_ratio.den,
719 } else if (den != 0) {
720 st->sample_aspect_ratio.num = num;
721 st->sample_aspect_ratio.den = den;
726 /* this atom contains actual media data */
727 static int mov_read_mdat(MOVContext *c, AVIOContext *pb, MOVAtom atom)
729 if (atom.size == 0) /* wrong one (MP4) */
732 return 0; /* now go for moov */
735 /* read major brand, minor version and compatible brands and store them as metadata */
736 static int mov_read_ftyp(MOVContext *c, AVIOContext *pb, MOVAtom atom)
740 char* comp_brands_str;
741 uint8_t type[5] = {0};
743 avio_read(pb, type, 4);
744 if (strcmp(type, "qt "))
746 av_log(c->fc, AV_LOG_DEBUG, "ISO: File Type Major Brand: %.4s\n",(char *)&type);
747 av_dict_set(&c->fc->metadata, "major_brand", type, 0);
748 minor_ver = avio_rb32(pb); /* minor version */
749 av_dict_set_int(&c->fc->metadata, "minor_version", minor_ver, 0);
751 comp_brand_size = atom.size - 8;
752 if (comp_brand_size < 0)
753 return AVERROR_INVALIDDATA;
754 comp_brands_str = av_malloc(comp_brand_size + 1); /* Add null terminator */
755 if (!comp_brands_str)
756 return AVERROR(ENOMEM);
757 avio_read(pb, comp_brands_str, comp_brand_size);
758 comp_brands_str[comp_brand_size] = 0;
759 av_dict_set(&c->fc->metadata, "compatible_brands", comp_brands_str, 0);
760 av_freep(&comp_brands_str);
765 /* this atom should contain all header atoms */
766 static int mov_read_moov(MOVContext *c, AVIOContext *pb, MOVAtom atom)
771 av_log(c->fc, AV_LOG_WARNING, "Found duplicated MOOV Atom. Skipped it\n");
772 avio_skip(pb, atom.size);
776 if ((ret = mov_read_default(c, pb, atom)) < 0)
778 /* we parsed the 'moov' atom, we can terminate the parsing as soon as we find the 'mdat' */
779 /* so we don't parse the whole file if over a network */
781 return 0; /* now go for mdat */
784 static int mov_read_moof(MOVContext *c, AVIOContext *pb, MOVAtom atom)
786 if (!c->has_looked_for_mfra && c->use_mfra_for > 0) {
787 c->has_looked_for_mfra = 1;
790 av_log(c->fc, AV_LOG_VERBOSE, "stream has moof boxes, will look "
792 if ((ret = mov_read_mfra(c, pb)) < 0) {
793 av_log(c->fc, AV_LOG_VERBOSE, "found a moof box but failed to "
794 "read the mfra (may be a live ismv)\n");
797 av_log(c->fc, AV_LOG_VERBOSE, "found a moof box but stream is not "
798 "seekable, can not look for mfra\n");
801 c->fragment.moof_offset = c->fragment.implicit_offset = avio_tell(pb) - 8;
802 av_dlog(c->fc, "moof offset %"PRIx64"\n", c->fragment.moof_offset);
803 return mov_read_default(c, pb, atom);
806 static void mov_metadata_creation_time(AVDictionary **metadata, int64_t time)
812 if(time >= 2082844800)
813 time -= 2082844800; /* seconds between 1904-01-01 and Epoch */
815 ptm = gmtime(&timet);
817 strftime(buffer, sizeof(buffer), "%Y-%m-%d %H:%M:%S", ptm);
818 av_dict_set(metadata, "creation_time", buffer, 0);
822 static int mov_read_mdhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
825 MOVStreamContext *sc;
827 char language[4] = {0};
829 int64_t creation_time;
831 if (c->fc->nb_streams < 1)
833 st = c->fc->streams[c->fc->nb_streams-1];
836 if (sc->time_scale) {
837 av_log(c->fc, AV_LOG_ERROR, "Multiple mdhd?\n");
838 return AVERROR_INVALIDDATA;
841 version = avio_r8(pb);
843 avpriv_request_sample(c->fc, "Version %d", version);
844 return AVERROR_PATCHWELCOME;
846 avio_rb24(pb); /* flags */
848 creation_time = avio_rb64(pb);
851 creation_time = avio_rb32(pb);
852 avio_rb32(pb); /* modification time */
854 mov_metadata_creation_time(&st->metadata, creation_time);
856 sc->time_scale = avio_rb32(pb);
857 st->duration = (version == 1) ? avio_rb64(pb) : avio_rb32(pb); /* duration */
859 lang = avio_rb16(pb); /* language */
860 if (ff_mov_lang_to_iso639(lang, language))
861 av_dict_set(&st->metadata, "language", language, 0);
862 avio_rb16(pb); /* quality */
867 static int mov_read_mvhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
869 int64_t creation_time;
870 int version = avio_r8(pb); /* version */
871 avio_rb24(pb); /* flags */
874 creation_time = avio_rb64(pb);
877 creation_time = avio_rb32(pb);
878 avio_rb32(pb); /* modification time */
880 mov_metadata_creation_time(&c->fc->metadata, creation_time);
881 c->time_scale = avio_rb32(pb); /* time scale */
883 av_dlog(c->fc, "time scale = %i\n", c->time_scale);
885 c->duration = (version == 1) ? avio_rb64(pb) : avio_rb32(pb); /* duration */
886 // set the AVCodecContext duration because the duration of individual tracks
888 if (c->time_scale > 0 && !c->trex_data)
889 c->fc->duration = av_rescale(c->duration, AV_TIME_BASE, c->time_scale);
890 avio_rb32(pb); /* preferred scale */
892 avio_rb16(pb); /* preferred volume */
894 avio_skip(pb, 10); /* reserved */
896 avio_skip(pb, 36); /* display matrix */
898 avio_rb32(pb); /* preview time */
899 avio_rb32(pb); /* preview duration */
900 avio_rb32(pb); /* poster time */
901 avio_rb32(pb); /* selection time */
902 avio_rb32(pb); /* selection duration */
903 avio_rb32(pb); /* current time */
904 avio_rb32(pb); /* next track ID */
908 static int mov_read_enda(MOVContext *c, AVIOContext *pb, MOVAtom atom)
913 if (c->fc->nb_streams < 1)
915 st = c->fc->streams[c->fc->nb_streams-1];
917 little_endian = avio_rb16(pb) & 0xFF;
918 av_dlog(c->fc, "enda %d\n", little_endian);
919 if (little_endian == 1) {
920 switch (st->codec->codec_id) {
921 case AV_CODEC_ID_PCM_S24BE:
922 st->codec->codec_id = AV_CODEC_ID_PCM_S24LE;
924 case AV_CODEC_ID_PCM_S32BE:
925 st->codec->codec_id = AV_CODEC_ID_PCM_S32LE;
927 case AV_CODEC_ID_PCM_F32BE:
928 st->codec->codec_id = AV_CODEC_ID_PCM_F32LE;
930 case AV_CODEC_ID_PCM_F64BE:
931 st->codec->codec_id = AV_CODEC_ID_PCM_F64LE;
940 static int mov_read_colr(MOVContext *c, AVIOContext *pb, MOVAtom atom)
943 char color_parameter_type[5] = { 0 };
944 int color_primaries, color_trc, color_matrix;
946 if (c->fc->nb_streams < 1)
948 st = c->fc->streams[c->fc->nb_streams - 1];
950 avio_read(pb, color_parameter_type, 4);
951 if (strncmp(color_parameter_type, "nclx", 4) &&
952 strncmp(color_parameter_type, "nclc", 4)) {
953 av_log(c->fc, AV_LOG_WARNING, "unsupported color_parameter_type %s\n",
954 color_parameter_type);
958 color_primaries = avio_rb16(pb);
959 color_trc = avio_rb16(pb);
960 color_matrix = avio_rb16(pb);
962 av_dlog(c->fc, "%s: pri %d trc %d matrix %d",
963 color_parameter_type, color_primaries, color_trc, color_matrix);
966 uint8_t color_range = avio_r8(pb) >> 7;
967 av_dlog(c->fc, " full %"PRIu8"", color_range);
969 st->codec->color_range = AVCOL_RANGE_JPEG;
971 st->codec->color_range = AVCOL_RANGE_MPEG;
972 /* 14496-12 references JPEG XR specs (rather than the more complete
973 * 23001-8) so some adjusting is required */
974 if (color_primaries >= AVCOL_PRI_FILM)
975 color_primaries = AVCOL_PRI_UNSPECIFIED;
976 if ((color_trc >= AVCOL_TRC_LINEAR &&
977 color_trc <= AVCOL_TRC_LOG_SQRT) ||
978 color_trc >= AVCOL_TRC_BT2020_10)
979 color_trc = AVCOL_TRC_UNSPECIFIED;
980 if (color_matrix >= AVCOL_SPC_BT2020_NCL)
981 color_matrix = AVCOL_SPC_UNSPECIFIED;
982 st->codec->color_primaries = color_primaries;
983 st->codec->color_trc = color_trc;
984 st->codec->colorspace = color_matrix;
986 /* color primaries, Table 4-4 */
987 switch (color_primaries) {
988 case 1: st->codec->color_primaries = AVCOL_PRI_BT709; break;
989 case 5: st->codec->color_primaries = AVCOL_PRI_SMPTE170M; break;
990 case 6: st->codec->color_primaries = AVCOL_PRI_SMPTE240M; break;
992 /* color transfer, Table 4-5 */
994 case 1: st->codec->color_trc = AVCOL_TRC_BT709; break;
995 case 7: st->codec->color_trc = AVCOL_TRC_SMPTE240M; break;
997 /* color matrix, Table 4-6 */
998 switch (color_matrix) {
999 case 1: st->codec->colorspace = AVCOL_SPC_BT709; break;
1000 case 6: st->codec->colorspace = AVCOL_SPC_BT470BG; break;
1001 case 7: st->codec->colorspace = AVCOL_SPC_SMPTE240M; break;
1004 av_dlog(c->fc, "\n");
1009 static int mov_read_fiel(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1012 unsigned mov_field_order;
1013 enum AVFieldOrder decoded_field_order = AV_FIELD_UNKNOWN;
1015 if (c->fc->nb_streams < 1) // will happen with jp2 files
1017 st = c->fc->streams[c->fc->nb_streams-1];
1019 return AVERROR_INVALIDDATA;
1020 mov_field_order = avio_rb16(pb);
1021 if ((mov_field_order & 0xFF00) == 0x0100)
1022 decoded_field_order = AV_FIELD_PROGRESSIVE;
1023 else if ((mov_field_order & 0xFF00) == 0x0200) {
1024 switch (mov_field_order & 0xFF) {
1025 case 0x01: decoded_field_order = AV_FIELD_TT;
1027 case 0x06: decoded_field_order = AV_FIELD_BB;
1029 case 0x09: decoded_field_order = AV_FIELD_TB;
1031 case 0x0E: decoded_field_order = AV_FIELD_BT;
1035 if (decoded_field_order == AV_FIELD_UNKNOWN && mov_field_order) {
1036 av_log(NULL, AV_LOG_ERROR, "Unknown MOV field order 0x%04x\n", mov_field_order);
1038 st->codec->field_order = decoded_field_order;
1043 /* FIXME modify qdm2/svq3/h264 decoders to take full atom as extradata */
1044 static int mov_read_extradata(MOVContext *c, AVIOContext *pb, MOVAtom atom,
1045 enum AVCodecID codec_id)
1052 if (c->fc->nb_streams < 1) // will happen with jp2 files
1054 st= c->fc->streams[c->fc->nb_streams-1];
1056 if (st->codec->codec_id != codec_id)
1057 return 0; /* unexpected codec_id - don't mess with extradata */
1059 size= (uint64_t)st->codec->extradata_size + atom.size + 8 + FF_INPUT_BUFFER_PADDING_SIZE;
1060 if (size > INT_MAX || (uint64_t)atom.size > INT_MAX)
1061 return AVERROR_INVALIDDATA;
1062 if ((err = av_reallocp(&st->codec->extradata, size)) < 0) {
1063 st->codec->extradata_size = 0;
1066 buf = st->codec->extradata + st->codec->extradata_size;
1067 st->codec->extradata_size= size - FF_INPUT_BUFFER_PADDING_SIZE;
1068 AV_WB32( buf , atom.size + 8);
1069 AV_WL32( buf + 4, atom.type);
1070 err = avio_read(pb, buf + 8, atom.size);
1073 } else if (err < atom.size) {
1074 av_log(c->fc, AV_LOG_WARNING, "truncated extradata\n");
1075 st->codec->extradata_size -= atom.size - err;
1077 memset(buf + 8 + err, 0, FF_INPUT_BUFFER_PADDING_SIZE);
1081 /* wrapper functions for reading ALAC/AVS/MJPEG/MJPEG2000 extradata atoms only for those codecs */
1082 static int mov_read_alac(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1084 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_ALAC);
1087 static int mov_read_avss(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1089 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_AVS);
1092 static int mov_read_jp2h(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1094 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_JPEG2000);
1097 static int mov_read_avid(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1099 int ret = mov_read_extradata(c, pb, atom, AV_CODEC_ID_AVUI);
1101 ret = mov_read_extradata(c, pb, atom, AV_CODEC_ID_DNXHD);
1105 static int mov_read_targa_y216(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1107 int ret = mov_read_extradata(c, pb, atom, AV_CODEC_ID_TARGA_Y216);
1109 if (!ret && c->fc->nb_streams >= 1) {
1110 AVCodecContext *avctx = c->fc->streams[c->fc->nb_streams-1]->codec;
1111 if (avctx->extradata_size >= 40) {
1112 avctx->height = AV_RB16(&avctx->extradata[36]);
1113 avctx->width = AV_RB16(&avctx->extradata[38]);
1119 static int mov_read_ares(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1121 if (c->fc->nb_streams >= 1) {
1122 AVCodecContext *codec = c->fc->streams[c->fc->nb_streams-1]->codec;
1123 if (codec->codec_tag == MKTAG('A', 'V', 'i', 'n') &&
1124 codec->codec_id == AV_CODEC_ID_H264 &&
1127 /* For AVID AVCI50, force width of 1440 to be able to select the correct SPS and PPS */
1128 if (avio_rb16(pb) == 0xd4d)
1129 codec->width = 1440;
1134 return mov_read_avid(c, pb, atom);
1137 static int mov_read_svq3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1139 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_SVQ3);
1142 static int mov_read_wave(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1146 if (c->fc->nb_streams < 1)
1148 st = c->fc->streams[c->fc->nb_streams-1];
1150 if ((uint64_t)atom.size > (1<<30))
1151 return AVERROR_INVALIDDATA;
1153 if (st->codec->codec_id == AV_CODEC_ID_QDM2 ||
1154 st->codec->codec_id == AV_CODEC_ID_QDMC ||
1155 st->codec->codec_id == AV_CODEC_ID_SPEEX) {
1156 // pass all frma atom to codec, needed at least for QDMC and QDM2
1157 av_free(st->codec->extradata);
1158 if (ff_get_extradata(st->codec, pb, atom.size) < 0)
1159 return AVERROR(ENOMEM);
1160 } else if (atom.size > 8) { /* to read frma, esds atoms */
1162 if ((ret = mov_read_default(c, pb, atom)) < 0)
1165 avio_skip(pb, atom.size);
1170 * This function reads atom content and puts data in extradata without tag
1171 * nor size unlike mov_read_extradata.
1173 static int mov_read_glbl(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1177 if (c->fc->nb_streams < 1)
1179 st = c->fc->streams[c->fc->nb_streams-1];
1181 if ((uint64_t)atom.size > (1<<30))
1182 return AVERROR_INVALIDDATA;
1184 if (atom.size >= 10) {
1185 // Broken files created by legacy versions of libavformat will
1186 // wrap a whole fiel atom inside of a glbl atom.
1187 unsigned size = avio_rb32(pb);
1188 unsigned type = avio_rl32(pb);
1189 avio_seek(pb, -8, SEEK_CUR);
1190 if (type == MKTAG('f','i','e','l') && size == atom.size)
1191 return mov_read_default(c, pb, atom);
1193 if (st->codec->extradata_size > 1 && st->codec->extradata) {
1194 av_log(c, AV_LOG_WARNING, "ignoring multiple glbl\n");
1197 av_free(st->codec->extradata);
1198 if (ff_get_extradata(st->codec, pb, atom.size) < 0)
1199 return AVERROR(ENOMEM);
1204 static int mov_read_dvc1(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1207 uint8_t profile_level;
1210 if (c->fc->nb_streams < 1)
1212 st = c->fc->streams[c->fc->nb_streams-1];
1214 if (atom.size >= (1<<28) || atom.size < 7)
1215 return AVERROR_INVALIDDATA;
1217 profile_level = avio_r8(pb);
1218 if ((profile_level & 0xf0) != 0xc0)
1221 avio_seek(pb, 6, SEEK_CUR);
1222 av_free(st->codec->extradata);
1223 if ((ret = ff_get_extradata(st->codec, pb, atom.size - 7)) < 0)
1230 * An strf atom is a BITMAPINFOHEADER struct. This struct is 40 bytes itself,
1231 * but can have extradata appended at the end after the 40 bytes belonging
1234 static int mov_read_strf(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1238 if (c->fc->nb_streams < 1)
1240 if (atom.size <= 40)
1242 st = c->fc->streams[c->fc->nb_streams-1];
1244 if ((uint64_t)atom.size > (1<<30))
1245 return AVERROR_INVALIDDATA;
1248 av_free(st->codec->extradata);
1249 if (ff_get_extradata(st->codec, pb, atom.size - 40) < 0)
1250 return AVERROR(ENOMEM);
1254 static int mov_read_stco(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1257 MOVStreamContext *sc;
1258 unsigned int i, entries;
1260 if (c->fc->nb_streams < 1)
1262 st = c->fc->streams[c->fc->nb_streams-1];
1265 avio_r8(pb); /* version */
1266 avio_rb24(pb); /* flags */
1268 entries = avio_rb32(pb);
1272 if (entries >= UINT_MAX/sizeof(int64_t))
1273 return AVERROR_INVALIDDATA;
1275 sc->chunk_offsets = av_malloc(entries * sizeof(int64_t));
1276 if (!sc->chunk_offsets)
1277 return AVERROR(ENOMEM);
1278 sc->chunk_count = entries;
1280 if (atom.type == MKTAG('s','t','c','o'))
1281 for (i = 0; i < entries && !pb->eof_reached; i++)
1282 sc->chunk_offsets[i] = avio_rb32(pb);
1283 else if (atom.type == MKTAG('c','o','6','4'))
1284 for (i = 0; i < entries && !pb->eof_reached; i++)
1285 sc->chunk_offsets[i] = avio_rb64(pb);
1287 return AVERROR_INVALIDDATA;
1289 sc->chunk_count = i;
1291 if (pb->eof_reached)
1298 * Compute codec id for 'lpcm' tag.
1299 * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
1301 enum AVCodecID ff_mov_get_lpcm_codec_id(int bps, int flags)
1308 return ff_get_pcm_codec_id(bps, flags & 1, flags & 2, flags & 4 ? -1 : 0);
1311 static int mov_codec_id(AVStream *st, uint32_t format)
1313 int id = ff_codec_get_id(ff_codec_movaudio_tags, format);
1316 ((format & 0xFFFF) == 'm' + ('s' << 8) ||
1317 (format & 0xFFFF) == 'T' + ('S' << 8)))
1318 id = ff_codec_get_id(ff_codec_wav_tags, av_bswap32(format) & 0xFFFF);
1320 if (st->codec->codec_type != AVMEDIA_TYPE_VIDEO && id > 0) {
1321 st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
1322 } else if (st->codec->codec_type != AVMEDIA_TYPE_AUDIO &&
1323 /* skip old asf mpeg4 tag */
1324 format && format != MKTAG('m','p','4','s')) {
1325 id = ff_codec_get_id(ff_codec_movvideo_tags, format);
1327 id = ff_codec_get_id(ff_codec_bmp_tags, format);
1329 st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
1330 else if (st->codec->codec_type == AVMEDIA_TYPE_DATA ||
1331 (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE &&
1332 st->codec->codec_id == AV_CODEC_ID_NONE)) {
1333 id = ff_codec_get_id(ff_codec_movsubtitle_tags, format);
1335 st->codec->codec_type = AVMEDIA_TYPE_SUBTITLE;
1339 st->codec->codec_tag = format;
1344 static void mov_parse_stsd_video(MOVContext *c, AVIOContext *pb,
1345 AVStream *st, MOVStreamContext *sc)
1347 uint8_t codec_name[32];
1348 unsigned int color_depth, len, j;
1349 int color_greyscale;
1352 avio_rb16(pb); /* version */
1353 avio_rb16(pb); /* revision level */
1354 avio_rb32(pb); /* vendor */
1355 avio_rb32(pb); /* temporal quality */
1356 avio_rb32(pb); /* spatial quality */
1358 st->codec->width = avio_rb16(pb); /* width */
1359 st->codec->height = avio_rb16(pb); /* height */
1361 avio_rb32(pb); /* horiz resolution */
1362 avio_rb32(pb); /* vert resolution */
1363 avio_rb32(pb); /* data size, always 0 */
1364 avio_rb16(pb); /* frames per samples */
1366 len = avio_r8(pb); /* codec name, pascal string */
1369 mov_read_mac_string(c, pb, len, codec_name, sizeof(codec_name));
1371 avio_skip(pb, 31 - len);
1374 av_dict_set(&st->metadata, "encoder", codec_name, 0);
1376 /* codec_tag YV12 triggers an UV swap in rawdec.c */
1377 if (!memcmp(codec_name, "Planar Y'CbCr 8-bit 4:2:0", 25)) {
1378 st->codec->codec_tag = MKTAG('I', '4', '2', '0');
1379 st->codec->width &= ~1;
1380 st->codec->height &= ~1;
1382 /* Flash Media Server uses tag H263 with Sorenson Spark */
1383 if (st->codec->codec_tag == MKTAG('H','2','6','3') &&
1384 !memcmp(codec_name, "Sorenson H263", 13))
1385 st->codec->codec_id = AV_CODEC_ID_FLV1;
1387 st->codec->bits_per_coded_sample = avio_rb16(pb); /* depth */
1388 color_table_id = avio_rb16(pb); /* colortable id */
1389 av_dlog(c->fc, "depth %d, ctab id %d\n",
1390 st->codec->bits_per_coded_sample, color_table_id);
1391 /* figure out the palette situation */
1392 color_depth = st->codec->bits_per_coded_sample & 0x1F;
1393 color_greyscale = st->codec->bits_per_coded_sample & 0x20;
1394 /* Do not create a greyscale palette for cinepak */
1395 if (color_greyscale && st->codec->codec_id == AV_CODEC_ID_CINEPAK)
1398 /* if the depth is 2, 4, or 8 bpp, file is palettized */
1399 if ((color_depth == 2) || (color_depth == 4) || (color_depth == 8)) {
1400 /* for palette traversal */
1401 unsigned int color_start, color_count, color_end;
1402 unsigned char a, r, g, b;
1404 if (color_greyscale) {
1405 int color_index, color_dec;
1406 /* compute the greyscale palette */
1407 st->codec->bits_per_coded_sample = color_depth;
1408 color_count = 1 << color_depth;
1410 color_dec = 256 / (color_count - 1);
1411 for (j = 0; j < color_count; j++) {
1412 r = g = b = color_index;
1413 sc->palette[j] = (0xFFU << 24) | (r << 16) | (g << 8) | (b);
1414 color_index -= color_dec;
1415 if (color_index < 0)
1418 } else if (color_table_id) {
1419 const uint8_t *color_table;
1420 /* if flag bit 3 is set, use the default palette */
1421 color_count = 1 << color_depth;
1422 if (color_depth == 2)
1423 color_table = ff_qt_default_palette_4;
1424 else if (color_depth == 4)
1425 color_table = ff_qt_default_palette_16;
1427 color_table = ff_qt_default_palette_256;
1429 for (j = 0; j < color_count; j++) {
1430 r = color_table[j * 3 + 0];
1431 g = color_table[j * 3 + 1];
1432 b = color_table[j * 3 + 2];
1433 sc->palette[j] = (0xFFU << 24) | (r << 16) | (g << 8) | (b);
1436 /* load the palette from the file */
1437 color_start = avio_rb32(pb);
1438 color_count = avio_rb16(pb);
1439 color_end = avio_rb16(pb);
1440 if ((color_start <= 255) && (color_end <= 255)) {
1441 for (j = color_start; j <= color_end; j++) {
1442 /* each A, R, G, or B component is 16 bits;
1443 * only use the top 8 bits */
1452 sc->palette[j] = (a << 24 ) | (r << 16) | (g << 8) | (b);
1456 sc->has_palette = 1;
1460 static void mov_parse_stsd_audio(MOVContext *c, AVIOContext *pb,
1461 AVStream *st, MOVStreamContext *sc)
1463 int bits_per_sample, flags;
1464 uint16_t version = avio_rb16(pb);
1465 AVDictionaryEntry *compatible_brands = av_dict_get(c->fc->metadata, "compatible_brands", NULL, AV_DICT_MATCH_CASE);
1467 avio_rb16(pb); /* revision level */
1468 avio_rb32(pb); /* vendor */
1470 st->codec->channels = avio_rb16(pb); /* channel count */
1471 st->codec->bits_per_coded_sample = avio_rb16(pb); /* sample size */
1472 av_dlog(c->fc, "audio channels %d\n", st->codec->channels);
1474 sc->audio_cid = avio_rb16(pb);
1475 avio_rb16(pb); /* packet size = 0 */
1477 st->codec->sample_rate = ((avio_rb32(pb) >> 16));
1479 // Read QT version 1 fields. In version 0 these do not exist.
1480 av_dlog(c->fc, "version =%d, isom =%d\n", version, c->isom);
1482 (compatible_brands && strstr(compatible_brands->value, "qt "))) {
1485 sc->samples_per_frame = avio_rb32(pb);
1486 avio_rb32(pb); /* bytes per packet */
1487 sc->bytes_per_frame = avio_rb32(pb);
1488 avio_rb32(pb); /* bytes per sample */
1489 } else if (version == 2) {
1490 avio_rb32(pb); /* sizeof struct only */
1491 st->codec->sample_rate = av_int2double(avio_rb64(pb));
1492 st->codec->channels = avio_rb32(pb);
1493 avio_rb32(pb); /* always 0x7F000000 */
1494 st->codec->bits_per_coded_sample = avio_rb32(pb);
1496 flags = avio_rb32(pb); /* lpcm format specific flag */
1497 sc->bytes_per_frame = avio_rb32(pb);
1498 sc->samples_per_frame = avio_rb32(pb);
1499 if (st->codec->codec_tag == MKTAG('l','p','c','m'))
1500 st->codec->codec_id =
1501 ff_mov_get_lpcm_codec_id(st->codec->bits_per_coded_sample,
1506 switch (st->codec->codec_id) {
1507 case AV_CODEC_ID_PCM_S8:
1508 case AV_CODEC_ID_PCM_U8:
1509 if (st->codec->bits_per_coded_sample == 16)
1510 st->codec->codec_id = AV_CODEC_ID_PCM_S16BE;
1512 case AV_CODEC_ID_PCM_S16LE:
1513 case AV_CODEC_ID_PCM_S16BE:
1514 if (st->codec->bits_per_coded_sample == 8)
1515 st->codec->codec_id = AV_CODEC_ID_PCM_S8;
1516 else if (st->codec->bits_per_coded_sample == 24)
1517 st->codec->codec_id =
1518 st->codec->codec_id == AV_CODEC_ID_PCM_S16BE ?
1519 AV_CODEC_ID_PCM_S24BE : AV_CODEC_ID_PCM_S24LE;
1520 else if (st->codec->bits_per_coded_sample == 32)
1521 st->codec->codec_id =
1522 st->codec->codec_id == AV_CODEC_ID_PCM_S16BE ?
1523 AV_CODEC_ID_PCM_S32BE : AV_CODEC_ID_PCM_S32LE;
1525 /* set values for old format before stsd version 1 appeared */
1526 case AV_CODEC_ID_MACE3:
1527 sc->samples_per_frame = 6;
1528 sc->bytes_per_frame = 2 * st->codec->channels;
1530 case AV_CODEC_ID_MACE6:
1531 sc->samples_per_frame = 6;
1532 sc->bytes_per_frame = 1 * st->codec->channels;
1534 case AV_CODEC_ID_ADPCM_IMA_QT:
1535 sc->samples_per_frame = 64;
1536 sc->bytes_per_frame = 34 * st->codec->channels;
1538 case AV_CODEC_ID_GSM:
1539 sc->samples_per_frame = 160;
1540 sc->bytes_per_frame = 33;
1546 bits_per_sample = av_get_bits_per_sample(st->codec->codec_id);
1547 if (bits_per_sample) {
1548 st->codec->bits_per_coded_sample = bits_per_sample;
1549 sc->sample_size = (bits_per_sample >> 3) * st->codec->channels;
1553 static void mov_parse_stsd_subtitle(MOVContext *c, AVIOContext *pb,
1554 AVStream *st, MOVStreamContext *sc,
1557 // ttxt stsd contains display flags, justification, background
1558 // color, fonts, and default styles, so fake an atom to read it
1559 MOVAtom fake_atom = { .size = size };
1560 // mp4s contains a regular esds atom
1561 if (st->codec->codec_tag != AV_RL32("mp4s"))
1562 mov_read_glbl(c, pb, fake_atom);
1563 st->codec->width = sc->width;
1564 st->codec->height = sc->height;
1567 static uint32_t yuv_to_rgba(uint32_t ycbcr)
1572 y = (ycbcr >> 16) & 0xFF;
1573 cr = (ycbcr >> 8) & 0xFF;
1576 b = av_clip_uint8(1.164 * (y - 16) + 2.018 * (cb - 128));
1577 g = av_clip_uint8(1.164 * (y - 16) - 0.813 * (cr - 128) - 0.391 * (cb - 128));
1578 r = av_clip_uint8(1.164 * (y - 16) + 1.596 * (cr - 128));
1580 return (r << 16) | (g << 8) | b;
1583 static int mov_rewrite_dvd_sub_extradata(AVStream *st)
1585 char buf[256] = {0};
1586 uint8_t *src = st->codec->extradata;
1589 if (st->codec->extradata_size != 64)
1592 if (st->codec->width > 0 && st->codec->height > 0)
1593 snprintf(buf, sizeof(buf), "size: %dx%d\n",
1594 st->codec->width, st->codec->height);
1595 av_strlcat(buf, "palette: ", sizeof(buf));
1597 for (i = 0; i < 16; i++) {
1598 uint32_t yuv = AV_RB32(src + i * 4);
1599 uint32_t rgba = yuv_to_rgba(yuv);
1601 av_strlcatf(buf, sizeof(buf), "%06"PRIx32"%s", rgba, i != 15 ? ", " : "");
1604 if (av_strlcat(buf, "\n", sizeof(buf)) >= sizeof(buf))
1607 av_freep(&st->codec->extradata);
1608 st->codec->extradata_size = 0;
1609 st->codec->extradata = av_mallocz(strlen(buf) + FF_INPUT_BUFFER_PADDING_SIZE);
1610 if (!st->codec->extradata)
1611 return AVERROR(ENOMEM);
1612 st->codec->extradata_size = strlen(buf);
1613 memcpy(st->codec->extradata, buf, st->codec->extradata_size);
1618 static int mov_parse_stsd_data(MOVContext *c, AVIOContext *pb,
1619 AVStream *st, MOVStreamContext *sc,
1622 if (st->codec->codec_tag == MKTAG('t','m','c','d')) {
1623 if (ff_get_extradata(st->codec, pb, size) < 0)
1624 return AVERROR(ENOMEM);
1626 MOVStreamContext *tmcd_ctx = st->priv_data;
1628 val = AV_RB32(st->codec->extradata + 4);
1629 tmcd_ctx->tmcd_flags = val;
1631 st->codec->flags2 |= CODEC_FLAG2_DROP_FRAME_TIMECODE;
1632 st->codec->time_base.den = st->codec->extradata[16]; /* number of frame */
1633 st->codec->time_base.num = 1;
1635 uint32_t len = AV_RB32(st->codec->extradata + 18); /* name atom length */
1636 uint32_t format = AV_RB32(st->codec->extradata + 22);
1637 if (format == AV_RB32("name") && (int64_t)size >= (int64_t)len + 18) {
1638 uint16_t str_size = AV_RB16(st->codec->extradata + 26); /* string length */
1639 if (str_size > 0 && size >= (int)str_size + 26) {
1640 char *reel_name = av_malloc(str_size + 1);
1642 return AVERROR(ENOMEM);
1643 memcpy(reel_name, st->codec->extradata + 30, str_size);
1644 reel_name[str_size] = 0; /* Add null terminator */
1645 /* don't add reel_name if emtpy string */
1646 if (*reel_name == 0) {
1649 av_dict_set(&st->metadata, "reel_name", reel_name, AV_DICT_DONT_STRDUP_VAL);
1656 /* other codec type, just skip (rtp, mp4s ...) */
1657 avio_skip(pb, size);
1662 static int mov_finalize_stsd_codec(MOVContext *c, AVIOContext *pb,
1663 AVStream *st, MOVStreamContext *sc)
1665 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
1666 !st->codec->sample_rate && sc->time_scale > 1)
1667 st->codec->sample_rate = sc->time_scale;
1669 /* special codec parameters handling */
1670 switch (st->codec->codec_id) {
1671 #if CONFIG_DV_DEMUXER
1672 case AV_CODEC_ID_DVAUDIO:
1673 c->dv_fctx = avformat_alloc_context();
1674 c->dv_demux = avpriv_dv_init_demux(c->dv_fctx);
1676 av_log(c->fc, AV_LOG_ERROR, "dv demux context init error\n");
1677 return AVERROR(ENOMEM);
1679 sc->dv_audio_container = 1;
1680 st->codec->codec_id = AV_CODEC_ID_PCM_S16LE;
1683 /* no ifdef since parameters are always those */
1684 case AV_CODEC_ID_QCELP:
1685 st->codec->channels = 1;
1686 // force sample rate for qcelp when not stored in mov
1687 if (st->codec->codec_tag != MKTAG('Q','c','l','p'))
1688 st->codec->sample_rate = 8000;
1689 // FIXME: Why is the following needed for some files?
1690 sc->samples_per_frame = 160;
1691 if (!sc->bytes_per_frame)
1692 sc->bytes_per_frame = 35;
1694 case AV_CODEC_ID_AMR_NB:
1695 st->codec->channels = 1;
1696 /* force sample rate for amr, stsd in 3gp does not store sample rate */
1697 st->codec->sample_rate = 8000;
1699 case AV_CODEC_ID_AMR_WB:
1700 st->codec->channels = 1;
1701 st->codec->sample_rate = 16000;
1703 case AV_CODEC_ID_MP2:
1704 case AV_CODEC_ID_MP3:
1705 /* force type after stsd for m1a hdlr */
1706 st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
1707 st->need_parsing = AVSTREAM_PARSE_FULL;
1709 case AV_CODEC_ID_GSM:
1710 case AV_CODEC_ID_ADPCM_MS:
1711 case AV_CODEC_ID_ADPCM_IMA_WAV:
1712 case AV_CODEC_ID_ILBC:
1713 case AV_CODEC_ID_MACE3:
1714 case AV_CODEC_ID_MACE6:
1715 case AV_CODEC_ID_QDM2:
1716 st->codec->block_align = sc->bytes_per_frame;
1718 case AV_CODEC_ID_ALAC:
1719 if (st->codec->extradata_size == 36) {
1720 st->codec->channels = AV_RB8 (st->codec->extradata + 21);
1721 st->codec->sample_rate = AV_RB32(st->codec->extradata + 32);
1724 case AV_CODEC_ID_AC3:
1725 case AV_CODEC_ID_EAC3:
1726 case AV_CODEC_ID_MPEG1VIDEO:
1727 case AV_CODEC_ID_VC1:
1728 st->need_parsing = AVSTREAM_PARSE_FULL;
1736 static int mov_skip_multiple_stsd(MOVContext *c, AVIOContext *pb,
1737 int codec_tag, int format,
1740 int video_codec_id = ff_codec_get_id(ff_codec_movvideo_tags, format);
1743 (codec_tag != format &&
1744 (c->fc->video_codec_id ? video_codec_id != c->fc->video_codec_id
1745 : codec_tag != MKTAG('j','p','e','g')))) {
1746 /* Multiple fourcc, we skip JPEG. This is not correct, we should
1747 * export it as a separate AVStream but this needs a few changes
1748 * in the MOV demuxer, patch welcome. */
1750 av_log(c->fc, AV_LOG_WARNING, "multiple fourcc not supported\n");
1751 avio_skip(pb, size);
1754 if ( codec_tag == AV_RL32("avc1") ||
1755 codec_tag == AV_RL32("hvc1") ||
1756 codec_tag == AV_RL32("hev1")
1758 av_log(c->fc, AV_LOG_WARNING, "Concatenated H.264 or H.265 might not play correctly.\n");
1763 int ff_mov_read_stsd_entries(MOVContext *c, AVIOContext *pb, int entries)
1766 MOVStreamContext *sc;
1767 int pseudo_stream_id;
1769 if (c->fc->nb_streams < 1)
1771 st = c->fc->streams[c->fc->nb_streams-1];
1774 for (pseudo_stream_id = 0;
1775 pseudo_stream_id < entries && !pb->eof_reached;
1776 pseudo_stream_id++) {
1777 //Parsing Sample description table
1779 int ret, dref_id = 1;
1780 MOVAtom a = { AV_RL32("stsd") };
1781 int64_t start_pos = avio_tell(pb);
1782 int64_t size = avio_rb32(pb); /* size */
1783 uint32_t format = avio_rl32(pb); /* data format */
1786 avio_rb32(pb); /* reserved */
1787 avio_rb16(pb); /* reserved */
1788 dref_id = avio_rb16(pb);
1789 }else if (size <= 7){
1790 av_log(c->fc, AV_LOG_ERROR, "invalid size %"PRId64" in stsd\n", size);
1791 return AVERROR_INVALIDDATA;
1794 if (mov_skip_multiple_stsd(c, pb, st->codec->codec_tag, format,
1795 size - (avio_tell(pb) - start_pos)))
1798 sc->pseudo_stream_id = st->codec->codec_tag ? -1 : pseudo_stream_id;
1799 sc->dref_id= dref_id;
1801 id = mov_codec_id(st, format);
1803 av_dlog(c->fc, "size=%"PRId64" 4CC= %c%c%c%c codec_type=%d\n", size,
1804 (format >> 0) & 0xff, (format >> 8) & 0xff, (format >> 16) & 0xff,
1805 (format >> 24) & 0xff, st->codec->codec_type);
1807 if (st->codec->codec_type==AVMEDIA_TYPE_VIDEO) {
1808 st->codec->codec_id = id;
1809 mov_parse_stsd_video(c, pb, st, sc);
1810 } else if (st->codec->codec_type==AVMEDIA_TYPE_AUDIO) {
1811 st->codec->codec_id = id;
1812 mov_parse_stsd_audio(c, pb, st, sc);
1813 } else if (st->codec->codec_type==AVMEDIA_TYPE_SUBTITLE){
1814 st->codec->codec_id = id;
1815 mov_parse_stsd_subtitle(c, pb, st, sc,
1816 size - (avio_tell(pb) - start_pos));
1818 ret = mov_parse_stsd_data(c, pb, st, sc,
1819 size - (avio_tell(pb) - start_pos));
1823 /* this will read extra atoms at the end (wave, alac, damr, avcC, hvcC, SMI ...) */
1824 a.size = size - (avio_tell(pb) - start_pos);
1826 if ((ret = mov_read_default(c, pb, a)) < 0)
1828 } else if (a.size > 0)
1829 avio_skip(pb, a.size);
1832 if (pb->eof_reached)
1835 return mov_finalize_stsd_codec(c, pb, st, sc);
1838 static int mov_read_stsd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1842 avio_r8(pb); /* version */
1843 avio_rb24(pb); /* flags */
1844 entries = avio_rb32(pb);
1846 return ff_mov_read_stsd_entries(c, pb, entries);
1849 static int mov_read_stsc(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1852 MOVStreamContext *sc;
1853 unsigned int i, entries;
1855 if (c->fc->nb_streams < 1)
1857 st = c->fc->streams[c->fc->nb_streams-1];
1860 avio_r8(pb); /* version */
1861 avio_rb24(pb); /* flags */
1863 entries = avio_rb32(pb);
1865 av_dlog(c->fc, "track[%i].stsc.entries = %i\n", c->fc->nb_streams-1, entries);
1869 if (entries >= UINT_MAX / sizeof(*sc->stsc_data))
1870 return AVERROR_INVALIDDATA;
1871 sc->stsc_data = av_malloc(entries * sizeof(*sc->stsc_data));
1873 return AVERROR(ENOMEM);
1875 for (i = 0; i < entries && !pb->eof_reached; i++) {
1876 sc->stsc_data[i].first = avio_rb32(pb);
1877 sc->stsc_data[i].count = avio_rb32(pb);
1878 sc->stsc_data[i].id = avio_rb32(pb);
1883 if (pb->eof_reached)
1889 static int mov_read_stps(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1892 MOVStreamContext *sc;
1893 unsigned i, entries;
1895 if (c->fc->nb_streams < 1)
1897 st = c->fc->streams[c->fc->nb_streams-1];
1900 avio_rb32(pb); // version + flags
1902 entries = avio_rb32(pb);
1903 if (entries >= UINT_MAX / sizeof(*sc->stps_data))
1904 return AVERROR_INVALIDDATA;
1905 sc->stps_data = av_malloc(entries * sizeof(*sc->stps_data));
1907 return AVERROR(ENOMEM);
1909 for (i = 0; i < entries && !pb->eof_reached; i++) {
1910 sc->stps_data[i] = avio_rb32(pb);
1911 //av_dlog(c->fc, "stps %d\n", sc->stps_data[i]);
1916 if (pb->eof_reached)
1922 static int mov_read_stss(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1925 MOVStreamContext *sc;
1926 unsigned int i, entries;
1928 if (c->fc->nb_streams < 1)
1930 st = c->fc->streams[c->fc->nb_streams-1];
1933 avio_r8(pb); /* version */
1934 avio_rb24(pb); /* flags */
1936 entries = avio_rb32(pb);
1938 av_dlog(c->fc, "keyframe_count = %d\n", entries);
1942 sc->keyframe_absent = 1;
1943 if (!st->need_parsing && st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
1944 st->need_parsing = AVSTREAM_PARSE_HEADERS;
1947 if (entries >= UINT_MAX / sizeof(int))
1948 return AVERROR_INVALIDDATA;
1949 sc->keyframes = av_malloc(entries * sizeof(int));
1951 return AVERROR(ENOMEM);
1953 for (i = 0; i < entries && !pb->eof_reached; i++) {
1954 sc->keyframes[i] = avio_rb32(pb);
1955 //av_dlog(c->fc, "keyframes[]=%d\n", sc->keyframes[i]);
1958 sc->keyframe_count = i;
1960 if (pb->eof_reached)
1966 static int mov_read_stsz(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1969 MOVStreamContext *sc;
1970 unsigned int i, entries, sample_size, field_size, num_bytes;
1974 if (c->fc->nb_streams < 1)
1976 st = c->fc->streams[c->fc->nb_streams-1];
1979 avio_r8(pb); /* version */
1980 avio_rb24(pb); /* flags */
1982 if (atom.type == MKTAG('s','t','s','z')) {
1983 sample_size = avio_rb32(pb);
1984 if (!sc->sample_size) /* do not overwrite value computed in stsd */
1985 sc->sample_size = sample_size;
1986 sc->stsz_sample_size = sample_size;
1990 avio_rb24(pb); /* reserved */
1991 field_size = avio_r8(pb);
1993 entries = avio_rb32(pb);
1995 av_dlog(c->fc, "sample_size = %d sample_count = %d\n", sc->sample_size, entries);
1997 sc->sample_count = entries;
2001 if (field_size != 4 && field_size != 8 && field_size != 16 && field_size != 32) {
2002 av_log(c->fc, AV_LOG_ERROR, "Invalid sample field size %d\n", field_size);
2003 return AVERROR_INVALIDDATA;
2008 if (entries >= UINT_MAX / sizeof(int) || entries >= (UINT_MAX - 4) / field_size)
2009 return AVERROR_INVALIDDATA;
2010 sc->sample_sizes = av_malloc(entries * sizeof(int));
2011 if (!sc->sample_sizes)
2012 return AVERROR(ENOMEM);
2014 num_bytes = (entries*field_size+4)>>3;
2016 buf = av_malloc(num_bytes+FF_INPUT_BUFFER_PADDING_SIZE);
2018 av_freep(&sc->sample_sizes);
2019 return AVERROR(ENOMEM);
2022 if (avio_read(pb, buf, num_bytes) < num_bytes) {
2023 av_freep(&sc->sample_sizes);
2025 return AVERROR_INVALIDDATA;
2028 init_get_bits(&gb, buf, 8*num_bytes);
2030 for (i = 0; i < entries && !pb->eof_reached; i++) {
2031 sc->sample_sizes[i] = get_bits_long(&gb, field_size);
2032 sc->data_size += sc->sample_sizes[i];
2035 sc->sample_count = i;
2037 if (pb->eof_reached)
2044 static int mov_read_stts(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2047 MOVStreamContext *sc;
2048 unsigned int i, entries;
2050 int64_t total_sample_count=0;
2052 if (c->fc->nb_streams < 1)
2054 st = c->fc->streams[c->fc->nb_streams-1];
2057 avio_r8(pb); /* version */
2058 avio_rb24(pb); /* flags */
2059 entries = avio_rb32(pb);
2061 av_dlog(c->fc, "track[%i].stts.entries = %i\n",
2062 c->fc->nb_streams-1, entries);
2064 if (entries >= UINT_MAX / sizeof(*sc->stts_data))
2067 av_free(sc->stts_data);
2068 sc->stts_data = av_malloc(entries * sizeof(*sc->stts_data));
2070 return AVERROR(ENOMEM);
2072 for (i = 0; i < entries && !pb->eof_reached; i++) {
2073 int sample_duration;
2076 sample_count=avio_rb32(pb);
2077 sample_duration = avio_rb32(pb);
2079 /* sample_duration < 0 is invalid based on the spec */
2080 if (sample_duration < 0) {
2081 av_log(c->fc, AV_LOG_ERROR, "Invalid SampleDelta %d in STTS, at %d st:%d\n",
2082 sample_duration, i, c->fc->nb_streams-1);
2083 sample_duration = 1;
2085 if (sample_count < 0) {
2086 av_log(c->fc, AV_LOG_ERROR, "Invalid sample_count=%d\n", sample_count);
2087 return AVERROR_INVALIDDATA;
2089 sc->stts_data[i].count= sample_count;
2090 sc->stts_data[i].duration= sample_duration;
2092 av_dlog(c->fc, "sample_count=%d, sample_duration=%d\n",
2093 sample_count, sample_duration);
2097 && sample_count == 1
2098 && total_sample_count > 100
2099 && sample_duration/10 > duration / total_sample_count)
2100 sample_duration = duration / total_sample_count;
2101 duration+=(int64_t)sample_duration*sample_count;
2102 total_sample_count+=sample_count;
2107 sc->duration_for_fps += duration;
2108 sc->nb_frames_for_fps += total_sample_count;
2110 if (pb->eof_reached)
2113 st->nb_frames= total_sample_count;
2115 st->duration= duration;
2116 sc->track_end = duration;
2120 static void mov_update_dts_shift(MOVStreamContext *sc, int duration)
2123 sc->dts_shift = FFMAX(sc->dts_shift, -duration);
2127 static int mov_read_ctts(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2130 MOVStreamContext *sc;
2131 unsigned int i, entries;
2133 if (c->fc->nb_streams < 1)
2135 st = c->fc->streams[c->fc->nb_streams-1];
2138 avio_r8(pb); /* version */
2139 avio_rb24(pb); /* flags */
2140 entries = avio_rb32(pb);
2142 av_dlog(c->fc, "track[%i].ctts.entries = %i\n", c->fc->nb_streams-1, entries);
2146 if (entries >= UINT_MAX / sizeof(*sc->ctts_data))
2147 return AVERROR_INVALIDDATA;
2148 sc->ctts_data = av_malloc(entries * sizeof(*sc->ctts_data));
2150 return AVERROR(ENOMEM);
2152 for (i = 0; i < entries && !pb->eof_reached; i++) {
2153 int count =avio_rb32(pb);
2154 int duration =avio_rb32(pb);
2156 sc->ctts_data[i].count = count;
2157 sc->ctts_data[i].duration= duration;
2159 av_dlog(c->fc, "count=%d, duration=%d\n",
2162 if (FFABS(duration) > (1<<28) && i+2<entries) {
2163 av_log(c->fc, AV_LOG_WARNING, "CTTS invalid\n");
2164 av_freep(&sc->ctts_data);
2170 mov_update_dts_shift(sc, duration);
2175 if (pb->eof_reached)
2178 av_dlog(c->fc, "dts shift %d\n", sc->dts_shift);
2183 static int mov_read_sbgp(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2186 MOVStreamContext *sc;
2187 unsigned int i, entries;
2189 uint32_t grouping_type;
2191 if (c->fc->nb_streams < 1)
2193 st = c->fc->streams[c->fc->nb_streams-1];
2196 version = avio_r8(pb); /* version */
2197 avio_rb24(pb); /* flags */
2198 grouping_type = avio_rl32(pb);
2199 if (grouping_type != MKTAG( 'r','a','p',' '))
2200 return 0; /* only support 'rap ' grouping */
2202 avio_rb32(pb); /* grouping_type_parameter */
2204 entries = avio_rb32(pb);
2207 if (entries >= UINT_MAX / sizeof(*sc->rap_group))
2208 return AVERROR_INVALIDDATA;
2209 sc->rap_group = av_malloc(entries * sizeof(*sc->rap_group));
2211 return AVERROR(ENOMEM);
2213 for (i = 0; i < entries && !pb->eof_reached; i++) {
2214 sc->rap_group[i].count = avio_rb32(pb); /* sample_count */
2215 sc->rap_group[i].index = avio_rb32(pb); /* group_description_index */
2218 sc->rap_group_count = i;
2220 return pb->eof_reached ? AVERROR_EOF : 0;
2223 static void mov_build_index(MOVContext *mov, AVStream *st)
2225 MOVStreamContext *sc = st->priv_data;
2226 int64_t current_offset;
2227 int64_t current_dts = 0;
2228 unsigned int stts_index = 0;
2229 unsigned int stsc_index = 0;
2230 unsigned int stss_index = 0;
2231 unsigned int stps_index = 0;
2233 uint64_t stream_size = 0;
2235 /* adjust first dts according to edit list */
2236 if ((sc->empty_duration || sc->start_time) && mov->time_scale > 0) {
2237 if (sc->empty_duration)
2238 sc->empty_duration = av_rescale(sc->empty_duration, sc->time_scale, mov->time_scale);
2239 sc->time_offset = sc->start_time - sc->empty_duration;
2240 current_dts = -sc->time_offset;
2241 if (sc->ctts_count>0 && sc->stts_count>0 &&
2242 sc->ctts_data[0].duration / FFMAX(sc->stts_data[0].duration, 1) > 16) {
2243 /* more than 16 frames delay, dts are likely wrong
2244 this happens with files created by iMovie */
2246 st->codec->has_b_frames = 1;
2250 /* only use old uncompressed audio chunk demuxing when stts specifies it */
2251 if (!(st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
2252 sc->stts_count == 1 && sc->stts_data[0].duration == 1)) {
2253 unsigned int current_sample = 0;
2254 unsigned int stts_sample = 0;
2255 unsigned int sample_size;
2256 unsigned int distance = 0;
2257 unsigned int rap_group_index = 0;
2258 unsigned int rap_group_sample = 0;
2259 int rap_group_present = sc->rap_group_count && sc->rap_group;
2260 int key_off = (sc->keyframe_count && sc->keyframes[0] > 0) || (sc->stps_count && sc->stps_data[0] > 0);
2262 current_dts -= sc->dts_shift;
2264 if (!sc->sample_count || st->nb_index_entries)
2266 if (sc->sample_count >= UINT_MAX / sizeof(*st->index_entries) - st->nb_index_entries)
2268 if (av_reallocp_array(&st->index_entries,
2269 st->nb_index_entries + sc->sample_count,
2270 sizeof(*st->index_entries)) < 0) {
2271 st->nb_index_entries = 0;
2274 st->index_entries_allocated_size = (st->nb_index_entries + sc->sample_count) * sizeof(*st->index_entries);
2276 for (i = 0; i < sc->chunk_count; i++) {
2277 int64_t next_offset = i+1 < sc->chunk_count ? sc->chunk_offsets[i+1] : INT64_MAX;
2278 current_offset = sc->chunk_offsets[i];
2279 while (stsc_index + 1 < sc->stsc_count &&
2280 i + 1 == sc->stsc_data[stsc_index + 1].first)
2283 if (next_offset > current_offset && sc->sample_size>0 && sc->sample_size < sc->stsz_sample_size &&
2284 sc->stsc_data[stsc_index].count * (int64_t)sc->stsz_sample_size > next_offset - current_offset) {
2285 av_log(mov->fc, AV_LOG_WARNING, "STSZ sample size %d invalid (too large), ignoring\n", sc->stsz_sample_size);
2286 sc->stsz_sample_size = sc->sample_size;
2288 if (sc->stsz_sample_size>0 && sc->stsz_sample_size < sc->sample_size) {
2289 av_log(mov->fc, AV_LOG_WARNING, "STSZ sample size %d invalid (too small), ignoring\n", sc->stsz_sample_size);
2290 sc->stsz_sample_size = sc->sample_size;
2293 for (j = 0; j < sc->stsc_data[stsc_index].count; j++) {
2295 if (current_sample >= sc->sample_count) {
2296 av_log(mov->fc, AV_LOG_ERROR, "wrong sample count\n");
2300 if (!sc->keyframe_absent && (!sc->keyframe_count || current_sample+key_off == sc->keyframes[stss_index])) {
2302 if (stss_index + 1 < sc->keyframe_count)
2304 } else if (sc->stps_count && current_sample+key_off == sc->stps_data[stps_index]) {
2306 if (stps_index + 1 < sc->stps_count)
2309 if (rap_group_present && rap_group_index < sc->rap_group_count) {
2310 if (sc->rap_group[rap_group_index].index > 0)
2312 if (++rap_group_sample == sc->rap_group[rap_group_index].count) {
2313 rap_group_sample = 0;
2317 if (sc->keyframe_absent
2319 && !rap_group_present
2320 && (st->codec->codec_type == AVMEDIA_TYPE_AUDIO || (i==0 && j==0)))
2324 sample_size = sc->stsz_sample_size > 0 ? sc->stsz_sample_size : sc->sample_sizes[current_sample];
2325 if (sc->pseudo_stream_id == -1 ||
2326 sc->stsc_data[stsc_index].id - 1 == sc->pseudo_stream_id) {
2327 AVIndexEntry *e = &st->index_entries[st->nb_index_entries++];
2328 e->pos = current_offset;
2329 e->timestamp = current_dts;
2330 e->size = sample_size;
2331 e->min_distance = distance;
2332 e->flags = keyframe ? AVINDEX_KEYFRAME : 0;
2333 av_dlog(mov->fc, "AVIndex stream %d, sample %d, offset %"PRIx64", dts %"PRId64", "
2334 "size %d, distance %d, keyframe %d\n", st->index, current_sample,
2335 current_offset, current_dts, sample_size, distance, keyframe);
2336 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && st->nb_index_entries < 100)
2337 ff_rfps_add_frame(mov->fc, st, current_dts);
2340 current_offset += sample_size;
2341 stream_size += sample_size;
2342 current_dts += sc->stts_data[stts_index].duration;
2346 if (stts_index + 1 < sc->stts_count && stts_sample == sc->stts_data[stts_index].count) {
2352 if (st->duration > 0)
2353 st->codec->bit_rate = stream_size*8*sc->time_scale/st->duration;
2355 unsigned chunk_samples, total = 0;
2357 // compute total chunk count
2358 for (i = 0; i < sc->stsc_count; i++) {
2359 unsigned count, chunk_count;
2361 chunk_samples = sc->stsc_data[i].count;
2362 if (i != sc->stsc_count - 1 &&
2363 sc->samples_per_frame && chunk_samples % sc->samples_per_frame) {
2364 av_log(mov->fc, AV_LOG_ERROR, "error unaligned chunk\n");
2368 if (sc->samples_per_frame >= 160) { // gsm
2369 count = chunk_samples / sc->samples_per_frame;
2370 } else if (sc->samples_per_frame > 1) {
2371 unsigned samples = (1024/sc->samples_per_frame)*sc->samples_per_frame;
2372 count = (chunk_samples+samples-1) / samples;
2374 count = (chunk_samples+1023) / 1024;
2377 if (i < sc->stsc_count - 1)
2378 chunk_count = sc->stsc_data[i+1].first - sc->stsc_data[i].first;
2380 chunk_count = sc->chunk_count - (sc->stsc_data[i].first - 1);
2381 total += chunk_count * count;
2384 av_dlog(mov->fc, "chunk count %d\n", total);
2385 if (total >= UINT_MAX / sizeof(*st->index_entries) - st->nb_index_entries)
2387 if (av_reallocp_array(&st->index_entries,
2388 st->nb_index_entries + total,
2389 sizeof(*st->index_entries)) < 0) {
2390 st->nb_index_entries = 0;
2393 st->index_entries_allocated_size = (st->nb_index_entries + total) * sizeof(*st->index_entries);
2396 for (i = 0; i < sc->chunk_count; i++) {
2397 current_offset = sc->chunk_offsets[i];
2398 if (stsc_index + 1 < sc->stsc_count &&
2399 i + 1 == sc->stsc_data[stsc_index + 1].first)
2401 chunk_samples = sc->stsc_data[stsc_index].count;
2403 while (chunk_samples > 0) {
2405 unsigned size, samples;
2407 if (sc->samples_per_frame >= 160) { // gsm
2408 samples = sc->samples_per_frame;
2409 size = sc->bytes_per_frame;
2411 if (sc->samples_per_frame > 1) {
2412 samples = FFMIN((1024 / sc->samples_per_frame)*
2413 sc->samples_per_frame, chunk_samples);
2414 size = (samples / sc->samples_per_frame) * sc->bytes_per_frame;
2416 samples = FFMIN(1024, chunk_samples);
2417 size = samples * sc->sample_size;
2421 if (st->nb_index_entries >= total) {
2422 av_log(mov->fc, AV_LOG_ERROR, "wrong chunk count %d\n", total);
2425 e = &st->index_entries[st->nb_index_entries++];
2426 e->pos = current_offset;
2427 e->timestamp = current_dts;
2429 e->min_distance = 0;
2430 e->flags = AVINDEX_KEYFRAME;
2431 av_dlog(mov->fc, "AVIndex stream %d, chunk %d, offset %"PRIx64", dts %"PRId64", "
2432 "size %d, duration %d\n", st->index, i, current_offset, current_dts,
2435 current_offset += size;
2436 current_dts += samples;
2437 chunk_samples -= samples;
2443 static int mov_open_dref(AVIOContext **pb, const char *src, MOVDref *ref,
2444 AVIOInterruptCB *int_cb, int use_absolute_path, AVFormatContext *fc)
2446 /* try relative path, we do not try the absolute because it can leak information about our
2447 system to an attacker */
2448 if (ref->nlvl_to > 0 && ref->nlvl_from > 0) {
2449 char filename[1024];
2450 const char *src_path;
2453 /* find a source dir */
2454 src_path = strrchr(src, '/');
2460 /* find a next level down to target */
2461 for (i = 0, l = strlen(ref->path) - 1; l >= 0; l--)
2462 if (ref->path[l] == '/') {
2463 if (i == ref->nlvl_to - 1)
2469 /* compose filename if next level down to target was found */
2470 if (i == ref->nlvl_to - 1 && src_path - src < sizeof(filename)) {
2471 memcpy(filename, src, src_path - src);
2472 filename[src_path - src] = 0;
2474 for (i = 1; i < ref->nlvl_from; i++)
2475 av_strlcat(filename, "../", 1024);
2477 av_strlcat(filename, ref->path + l + 1, 1024);
2479 if (!avio_open2(pb, filename, AVIO_FLAG_READ, int_cb, NULL))
2482 } else if (use_absolute_path) {
2483 av_log(fc, AV_LOG_WARNING, "Using absolute path on user request, "
2484 "this is a possible security issue\n");
2485 if (!avio_open2(pb, ref->path, AVIO_FLAG_READ, int_cb, NULL))
2489 return AVERROR(ENOENT);
2492 static void fix_timescale(MOVContext *c, MOVStreamContext *sc)
2494 if (sc->time_scale <= 0) {
2495 av_log(c->fc, AV_LOG_WARNING, "stream %d, timescale not set\n", sc->ffindex);
2496 sc->time_scale = c->time_scale;
2497 if (sc->time_scale <= 0)
2502 static int mov_read_trak(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2505 MOVStreamContext *sc;
2508 st = avformat_new_stream(c->fc, NULL);
2509 if (!st) return AVERROR(ENOMEM);
2510 st->id = c->fc->nb_streams;
2511 sc = av_mallocz(sizeof(MOVStreamContext));
2512 if (!sc) return AVERROR(ENOMEM);
2515 st->codec->codec_type = AVMEDIA_TYPE_DATA;
2516 sc->ffindex = st->index;
2518 if ((ret = mov_read_default(c, pb, atom)) < 0)
2522 if (sc->chunk_count && (!sc->stts_count || !sc->stsc_count ||
2523 (!sc->sample_size && !sc->sample_count))) {
2524 av_log(c->fc, AV_LOG_ERROR, "stream %d, missing mandatory atoms, broken header\n",
2529 fix_timescale(c, sc);
2531 avpriv_set_pts_info(st, 64, 1, sc->time_scale);
2533 mov_build_index(c, st);
2535 if (sc->dref_id-1 < sc->drefs_count && sc->drefs[sc->dref_id-1].path) {
2536 MOVDref *dref = &sc->drefs[sc->dref_id - 1];
2537 if (mov_open_dref(&sc->pb, c->fc->filename, dref, &c->fc->interrupt_callback,
2538 c->use_absolute_path, c->fc) < 0)
2539 av_log(c->fc, AV_LOG_ERROR,
2540 "stream %d, error opening alias: path='%s', dir='%s', "
2541 "filename='%s', volume='%s', nlvl_from=%d, nlvl_to=%d\n",
2542 st->index, dref->path, dref->dir, dref->filename,
2543 dref->volume, dref->nlvl_from, dref->nlvl_to);
2546 sc->pb_is_copied = 1;
2549 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
2550 if (!st->sample_aspect_ratio.num &&
2551 (st->codec->width != sc->width || st->codec->height != sc->height)) {
2552 st->sample_aspect_ratio = av_d2q(((double)st->codec->height * sc->width) /
2553 ((double)st->codec->width * sc->height), INT_MAX);
2556 #if FF_API_R_FRAME_RATE
2557 if (sc->stts_count == 1 || (sc->stts_count == 2 && sc->stts_data[1].count == 1))
2558 av_reduce(&st->r_frame_rate.num, &st->r_frame_rate.den,
2559 sc->time_scale, sc->stts_data[0].duration, INT_MAX);
2563 // done for ai5q, ai52, ai55, ai1q, ai12 and ai15.
2564 if (!st->codec->extradata_size && st->codec->codec_id == AV_CODEC_ID_H264 &&
2565 TAG_IS_AVCI(st->codec->codec_tag)) {
2566 ret = ff_generate_avci_extradata(st);
2571 switch (st->codec->codec_id) {
2572 #if CONFIG_H261_DECODER
2573 case AV_CODEC_ID_H261:
2575 #if CONFIG_H263_DECODER
2576 case AV_CODEC_ID_H263:
2578 #if CONFIG_MPEG4_DECODER
2579 case AV_CODEC_ID_MPEG4:
2581 st->codec->width = 0; /* let decoder init width/height */
2582 st->codec->height= 0;
2586 /* Do not need those anymore. */
2587 av_freep(&sc->chunk_offsets);
2588 av_freep(&sc->stsc_data);
2589 av_freep(&sc->sample_sizes);
2590 av_freep(&sc->keyframes);
2591 av_freep(&sc->stts_data);
2592 av_freep(&sc->stps_data);
2593 av_freep(&sc->rap_group);
2598 static int mov_read_ilst(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2601 c->itunes_metadata = 1;
2602 ret = mov_read_default(c, pb, atom);
2603 c->itunes_metadata = 0;
2607 static int mov_read_custom_2plus(MOVContext *c, AVIOContext *pb, int size)
2609 int64_t end = avio_tell(pb) + size;
2610 uint8_t *key = NULL, *val = NULL;
2613 MOVStreamContext *sc;
2615 if (c->fc->nb_streams < 1)
2617 st = c->fc->streams[c->fc->nb_streams-1];
2620 for (i = 0; i < 2; i++) {
2624 if (end - avio_tell(pb) <= 12)
2627 len = avio_rb32(pb);
2628 tag = avio_rl32(pb);
2629 avio_skip(pb, 4); // flags
2631 if (len < 12 || len - 12 > end - avio_tell(pb))
2635 if (tag == MKTAG('n', 'a', 'm', 'e'))
2637 else if (tag == MKTAG('d', 'a', 't', 'a') && len > 4) {
2644 *p = av_malloc(len + 1);
2647 avio_read(pb, *p, len);
2652 if (strcmp(key, "iTunSMPB") == 0) {
2653 int priming, remainder, samples;
2654 if(sscanf(val, "%*X %X %X %X", &priming, &remainder, &samples) == 3){
2655 if(priming>0 && priming<16384)
2656 sc->start_pad = priming;
2659 if (strcmp(key, "cdec") != 0) {
2660 av_dict_set(&c->fc->metadata, key, val,
2661 AV_DICT_DONT_STRDUP_KEY | AV_DICT_DONT_STRDUP_VAL);
2666 avio_seek(pb, end, SEEK_SET);
2672 static int mov_read_custom(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2674 int64_t end = avio_tell(pb) + atom.size;
2680 len = avio_rb32(pb);
2681 tag = avio_rl32(pb);
2683 if (len > atom.size)
2686 if (tag == MKTAG('m', 'e', 'a', 'n') && len > 12) {
2687 uint8_t domain[128];
2690 avio_skip(pb, 4); // flags
2693 domain_len = avio_get_str(pb, len, domain, sizeof(domain));
2694 avio_skip(pb, len - domain_len);
2695 return mov_read_custom_2plus(c, pb, end - avio_tell(pb));
2699 av_log(c->fc, AV_LOG_VERBOSE,
2700 "Unhandled or malformed custom metadata of size %"PRId64"\n", atom.size);
2704 static int mov_read_meta(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2706 while (atom.size > 8) {
2707 uint32_t tag = avio_rl32(pb);
2709 if (tag == MKTAG('h','d','l','r')) {
2710 avio_seek(pb, -8, SEEK_CUR);
2712 return mov_read_default(c, pb, atom);
2718 static int mov_read_tkhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2723 int64_t disp_transform[2];
2724 int display_matrix[3][3];
2726 MOVStreamContext *sc;
2730 if (c->fc->nb_streams < 1)
2732 st = c->fc->streams[c->fc->nb_streams-1];
2735 version = avio_r8(pb);
2736 flags = avio_rb24(pb);
2737 st->disposition |= (flags & MOV_TKHD_FLAG_ENABLED) ? AV_DISPOSITION_DEFAULT : 0;
2743 avio_rb32(pb); /* creation time */
2744 avio_rb32(pb); /* modification time */
2746 st->id = (int)avio_rb32(pb); /* track id (NOT 0 !)*/
2747 avio_rb32(pb); /* reserved */
2749 /* highlevel (considering edits) duration in movie timebase */
2750 (version == 1) ? avio_rb64(pb) : avio_rb32(pb);
2751 avio_rb32(pb); /* reserved */
2752 avio_rb32(pb); /* reserved */
2754 avio_rb16(pb); /* layer */
2755 avio_rb16(pb); /* alternate group */
2756 avio_rb16(pb); /* volume */
2757 avio_rb16(pb); /* reserved */
2759 //read in the display matrix (outlined in ISO 14496-12, Section 6.2.2)
2760 // they're kept in fixed point format through all calculations
2761 // save u,v,z to store the whole matrix in the AV_PKT_DATA_DISPLAYMATRIX
2762 // side data, but the scale factor is not needed to calculate aspect ratio
2763 for (i = 0; i < 3; i++) {
2764 display_matrix[i][0] = avio_rb32(pb); // 16.16 fixed point
2765 display_matrix[i][1] = avio_rb32(pb); // 16.16 fixed point
2766 display_matrix[i][2] = avio_rb32(pb); // 2.30 fixed point
2769 width = avio_rb32(pb); // 16.16 fixed point track width
2770 height = avio_rb32(pb); // 16.16 fixed point track height
2771 sc->width = width >> 16;
2772 sc->height = height >> 16;
2774 // save the matrix and add rotate metadata when it is not the default
2776 if (display_matrix[0][0] != (1 << 16) ||
2777 display_matrix[1][1] != (1 << 16) ||
2778 display_matrix[2][2] != (1 << 30) ||
2779 display_matrix[0][1] || display_matrix[0][2] ||
2780 display_matrix[1][0] || display_matrix[1][2] ||
2781 display_matrix[2][0] || display_matrix[2][1]) {
2785 av_freep(&sc->display_matrix);
2786 sc->display_matrix = av_malloc(sizeof(int32_t) * 9);
2787 if (!sc->display_matrix)
2788 return AVERROR(ENOMEM);
2790 for (i = 0; i < 3; i++)
2791 for (j = 0; j < 3; j++)
2792 sc->display_matrix[i * 3 + j] = display_matrix[j][i];
2794 rotate = av_display_rotation_get(sc->display_matrix);
2795 if (!isnan(rotate)) {
2796 char rotate_buf[64];
2798 if (rotate < 0) // for backward compatibility
2800 snprintf(rotate_buf, sizeof(rotate_buf), "%g", rotate);
2801 av_dict_set(&st->metadata, "rotate", rotate_buf, 0);
2805 // transform the display width/height according to the matrix
2806 // skip this if the display matrix is the default identity matrix
2807 // or if it is rotating the picture, ex iPhone 3GS
2808 // to keep the same scale, use [width height 1<<16]
2809 if (width && height &&
2810 ((display_matrix[0][0] != 65536 ||
2811 display_matrix[1][1] != 65536) &&
2812 !display_matrix[0][1] &&
2813 !display_matrix[1][0] &&
2814 !display_matrix[2][0] && !display_matrix[2][1])) {
2815 for (i = 0; i < 2; i++)
2817 (int64_t) width * display_matrix[0][i] +
2818 (int64_t) height * display_matrix[1][i] +
2819 ((int64_t) display_matrix[2][i] << 16);
2821 //sample aspect ratio is new width/height divided by old width/height
2822 st->sample_aspect_ratio = av_d2q(
2823 ((double) disp_transform[0] * height) /
2824 ((double) disp_transform[1] * width), INT_MAX);
2829 static int mov_read_tfhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2831 MOVFragment *frag = &c->fragment;
2832 MOVTrackExt *trex = NULL;
2833 MOVFragmentIndex* index = NULL;
2834 int flags, track_id, i;
2836 avio_r8(pb); /* version */
2837 flags = avio_rb24(pb);
2839 track_id = avio_rb32(pb);
2841 return AVERROR_INVALIDDATA;
2842 frag->track_id = track_id;
2843 for (i = 0; i < c->trex_count; i++)
2844 if (c->trex_data[i].track_id == frag->track_id) {
2845 trex = &c->trex_data[i];
2849 av_log(c->fc, AV_LOG_ERROR, "could not find corresponding trex\n");
2850 return AVERROR_INVALIDDATA;
2852 for (i = 0; i < c->fragment_index_count; i++) {
2853 MOVFragmentIndex* candidate = c->fragment_index_data[i];
2854 if (candidate->track_id == frag->track_id) {
2855 av_log(c->fc, AV_LOG_DEBUG,
2856 "found fragment index for track %u\n", frag->track_id);
2862 frag->base_data_offset = flags & MOV_TFHD_BASE_DATA_OFFSET ?
2863 avio_rb64(pb) : flags & MOV_TFHD_DEFAULT_BASE_IS_MOOF ?
2864 frag->moof_offset : frag->implicit_offset;
2865 frag->stsd_id = flags & MOV_TFHD_STSD_ID ? avio_rb32(pb) : trex->stsd_id;
2867 frag->duration = flags & MOV_TFHD_DEFAULT_DURATION ?
2868 avio_rb32(pb) : trex->duration;
2869 frag->size = flags & MOV_TFHD_DEFAULT_SIZE ?
2870 avio_rb32(pb) : trex->size;
2871 frag->flags = flags & MOV_TFHD_DEFAULT_FLAGS ?
2872 avio_rb32(pb) : trex->flags;
2873 frag->time = AV_NOPTS_VALUE;
2876 for (i = index->current_item; i < index->item_count; i++) {
2877 if (frag->implicit_offset == index->items[i].moof_offset) {
2878 av_log(c->fc, AV_LOG_DEBUG, "found fragment index entry "
2879 "for track %u and moof_offset %"PRId64"\n",
2880 frag->track_id, index->items[i].moof_offset);
2881 frag->time = index->items[i].time;
2882 index->current_item = i + 1;
2887 av_log(c->fc, AV_LOG_WARNING, "track %u has a fragment index "
2888 "but it doesn't have an (in-order) entry for moof_offset "
2889 "%"PRId64"\n", frag->track_id, frag->implicit_offset);
2892 av_dlog(c->fc, "frag flags 0x%x\n", frag->flags);
2896 static int mov_read_chap(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2898 c->chapter_track = avio_rb32(pb);
2902 static int mov_read_trex(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2907 if ((uint64_t)c->trex_count+1 >= UINT_MAX / sizeof(*c->trex_data))
2908 return AVERROR_INVALIDDATA;
2909 if ((err = av_reallocp_array(&c->trex_data, c->trex_count + 1,
2910 sizeof(*c->trex_data))) < 0) {
2915 c->fc->duration = AV_NOPTS_VALUE; // the duration from mvhd is not representing the whole file when fragments are used.
2917 trex = &c->trex_data[c->trex_count++];
2918 avio_r8(pb); /* version */
2919 avio_rb24(pb); /* flags */
2920 trex->track_id = avio_rb32(pb);
2921 trex->stsd_id = avio_rb32(pb);
2922 trex->duration = avio_rb32(pb);
2923 trex->size = avio_rb32(pb);
2924 trex->flags = avio_rb32(pb);
2928 static int mov_read_tfdt(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2930 MOVFragment *frag = &c->fragment;
2931 AVStream *st = NULL;
2932 MOVStreamContext *sc;
2935 for (i = 0; i < c->fc->nb_streams; i++) {
2936 if (c->fc->streams[i]->id == frag->track_id) {
2937 st = c->fc->streams[i];
2942 av_log(c->fc, AV_LOG_ERROR, "could not find corresponding track id %d\n", frag->track_id);
2943 return AVERROR_INVALIDDATA;
2946 if (sc->pseudo_stream_id + 1 != frag->stsd_id)
2948 version = avio_r8(pb);
2949 avio_rb24(pb); /* flags */
2951 sc->track_end = avio_rb64(pb);
2953 sc->track_end = avio_rb32(pb);
2958 static int mov_read_trun(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2960 MOVFragment *frag = &c->fragment;
2961 AVStream *st = NULL;
2962 MOVStreamContext *sc;
2966 int data_offset = 0;
2967 unsigned entries, first_sample_flags = frag->flags;
2968 int flags, distance, i, found_keyframe = 0, err;
2970 for (i = 0; i < c->fc->nb_streams; i++) {
2971 if (c->fc->streams[i]->id == frag->track_id) {
2972 st = c->fc->streams[i];
2977 av_log(c->fc, AV_LOG_ERROR, "could not find corresponding track id %d\n", frag->track_id);
2978 return AVERROR_INVALIDDATA;
2981 if (sc->pseudo_stream_id+1 != frag->stsd_id && sc->pseudo_stream_id != -1)
2983 avio_r8(pb); /* version */
2984 flags = avio_rb24(pb);
2985 entries = avio_rb32(pb);
2986 av_dlog(c->fc, "flags 0x%x entries %d\n", flags, entries);
2988 /* Always assume the presence of composition time offsets.
2989 * Without this assumption, for instance, we cannot deal with a track in fragmented movies that meet the following.
2990 * 1) in the initial movie, there are no samples.
2991 * 2) in the first movie fragment, there is only one sample without composition time offset.
2992 * 3) in the subsequent movie fragments, there are samples with composition time offset. */
2993 if (!sc->ctts_count && sc->sample_count)
2995 /* Complement ctts table if moov atom doesn't have ctts atom. */
2996 ctts_data = av_realloc(NULL, sizeof(*sc->ctts_data));
2998 return AVERROR(ENOMEM);
2999 sc->ctts_data = ctts_data;
3000 sc->ctts_data[sc->ctts_count].count = sc->sample_count;
3001 sc->ctts_data[sc->ctts_count].duration = 0;
3004 if ((uint64_t)entries+sc->ctts_count >= UINT_MAX/sizeof(*sc->ctts_data))
3005 return AVERROR_INVALIDDATA;
3006 if ((err = av_reallocp_array(&sc->ctts_data, entries + sc->ctts_count,
3007 sizeof(*sc->ctts_data))) < 0) {
3011 if (flags & MOV_TRUN_DATA_OFFSET) data_offset = avio_rb32(pb);
3012 if (flags & MOV_TRUN_FIRST_SAMPLE_FLAGS) first_sample_flags = avio_rb32(pb);
3013 dts = sc->track_end - sc->time_offset;
3014 offset = frag->base_data_offset + data_offset;
3016 av_dlog(c->fc, "first sample flags 0x%x\n", first_sample_flags);
3017 for (i = 0; i < entries && !pb->eof_reached; i++) {
3018 unsigned sample_size = frag->size;
3019 int sample_flags = i ? frag->flags : first_sample_flags;
3020 unsigned sample_duration = frag->duration;
3023 if (flags & MOV_TRUN_SAMPLE_DURATION) sample_duration = avio_rb32(pb);
3024 if (flags & MOV_TRUN_SAMPLE_SIZE) sample_size = avio_rb32(pb);
3025 if (flags & MOV_TRUN_SAMPLE_FLAGS) sample_flags = avio_rb32(pb);
3026 sc->ctts_data[sc->ctts_count].count = 1;
3027 sc->ctts_data[sc->ctts_count].duration = (flags & MOV_TRUN_SAMPLE_CTS) ?
3029 mov_update_dts_shift(sc, sc->ctts_data[sc->ctts_count].duration);
3030 if (frag->time != AV_NOPTS_VALUE) {
3031 if (c->use_mfra_for == FF_MOV_FLAG_MFRA_PTS) {
3032 int64_t pts = frag->time;
3033 av_log(c->fc, AV_LOG_DEBUG, "found frag time %"PRId64
3034 " sc->dts_shift %d ctts.duration %d"
3035 " sc->time_offset %"PRId64" flags & MOV_TRUN_SAMPLE_CTS %d\n", pts,
3036 sc->dts_shift, sc->ctts_data[sc->ctts_count].duration,
3037 sc->time_offset, flags & MOV_TRUN_SAMPLE_CTS);
3038 dts = pts - sc->dts_shift;
3039 if (flags & MOV_TRUN_SAMPLE_CTS) {
3040 dts -= sc->ctts_data[sc->ctts_count].duration;
3042 dts -= sc->time_offset;
3044 av_log(c->fc, AV_LOG_DEBUG, "calculated into dts %"PRId64"\n", dts);
3047 av_log(c->fc, AV_LOG_DEBUG, "found frag time %"PRId64
3048 ", using it for dts\n", dts);
3050 frag->time = AV_NOPTS_VALUE;
3053 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
3055 else if (!found_keyframe)
3056 keyframe = found_keyframe =
3057 !(sample_flags & (MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC |
3058 MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES));
3061 av_add_index_entry(st, offset, dts, sample_size, distance,
3062 keyframe ? AVINDEX_KEYFRAME : 0);
3063 av_dlog(c->fc, "AVIndex stream %d, sample %d, offset %"PRIx64", dts %"PRId64", "
3064 "size %d, distance %d, keyframe %d\n", st->index, sc->sample_count+i,
3065 offset, dts, sample_size, distance, keyframe);
3067 dts += sample_duration;
3068 offset += sample_size;
3069 sc->data_size += sample_size;
3070 sc->duration_for_fps += sample_duration;
3071 sc->nb_frames_for_fps ++;
3074 if (pb->eof_reached)
3077 frag->implicit_offset = offset;
3078 st->duration = sc->track_end = dts + sc->time_offset;
3082 /* this atom should be null (from specs), but some buggy files put the 'moov' atom inside it... */
3083 /* like the files created with Adobe Premiere 5.0, for samples see */
3084 /* http://graphics.tudelft.nl/~wouter/publications/soundtests/ */
3085 static int mov_read_wide(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3090 return 0; /* continue */
3091 if (avio_rb32(pb) != 0) { /* 0 sized mdat atom... use the 'wide' atom size */
3092 avio_skip(pb, atom.size - 4);
3095 atom.type = avio_rl32(pb);
3097 if (atom.type != MKTAG('m','d','a','t')) {
3098 avio_skip(pb, atom.size);
3101 err = mov_read_mdat(c, pb, atom);
3105 static int mov_read_cmov(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3110 uint8_t *moov_data; /* uncompressed data */
3111 long cmov_len, moov_len;
3114 avio_rb32(pb); /* dcom atom */
3115 if (avio_rl32(pb) != MKTAG('d','c','o','m'))
3116 return AVERROR_INVALIDDATA;
3117 if (avio_rl32(pb) != MKTAG('z','l','i','b')) {
3118 av_log(c->fc, AV_LOG_ERROR, "unknown compression for cmov atom !\n");
3119 return AVERROR_INVALIDDATA;
3121 avio_rb32(pb); /* cmvd atom */
3122 if (avio_rl32(pb) != MKTAG('c','m','v','d'))
3123 return AVERROR_INVALIDDATA;
3124 moov_len = avio_rb32(pb); /* uncompressed size */
3125 cmov_len = atom.size - 6 * 4;
3127 cmov_data = av_malloc(cmov_len);
3129 return AVERROR(ENOMEM);
3130 moov_data = av_malloc(moov_len);
3133 return AVERROR(ENOMEM);
3135 avio_read(pb, cmov_data, cmov_len);
3136 if (uncompress (moov_data, (uLongf *) &moov_len, (const Bytef *)cmov_data, cmov_len) != Z_OK)
3137 goto free_and_return;
3138 if (ffio_init_context(&ctx, moov_data, moov_len, 0, NULL, NULL, NULL, NULL) != 0)
3139 goto free_and_return;
3140 atom.type = MKTAG('m','o','o','v');
3141 atom.size = moov_len;
3142 ret = mov_read_default(c, &ctx, atom);
3148 av_log(c->fc, AV_LOG_ERROR, "this file requires zlib support compiled in\n");
3149 return AVERROR(ENOSYS);
3153 /* edit list atom */
3154 static int mov_read_elst(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3156 MOVStreamContext *sc;
3157 int i, edit_count, version, edit_start_index = 0;
3158 int unsupported = 0;
3160 if (c->fc->nb_streams < 1 || c->ignore_editlist)
3162 sc = c->fc->streams[c->fc->nb_streams-1]->priv_data;
3164 version = avio_r8(pb); /* version */
3165 avio_rb24(pb); /* flags */
3166 edit_count = avio_rb32(pb); /* entries */
3168 if ((uint64_t)edit_count*12+8 > atom.size)
3169 return AVERROR_INVALIDDATA;
3171 av_dlog(c->fc, "track[%i].edit_count = %i\n", c->fc->nb_streams-1, edit_count);
3172 for (i=0; i<edit_count; i++){
3177 duration = avio_rb64(pb);
3178 time = avio_rb64(pb);
3180 duration = avio_rb32(pb); /* segment duration */
3181 time = (int32_t)avio_rb32(pb); /* media time */
3183 rate = avio_rb32(pb);
3184 if (i == 0 && time == -1) {
3185 sc->empty_duration = duration;
3186 edit_start_index = 1;
3187 } else if (i == edit_start_index && time >= 0)
3188 sc->start_time = time;
3192 av_dlog(c->fc, "duration=%"PRId64" time=%"PRId64" rate=%f\n",
3193 duration, time, rate / 65536.0);
3197 av_log(c->fc, AV_LOG_WARNING, "multiple edit list entries, "
3198 "a/v desync might occur, patch welcome\n");
3203 static int mov_read_tmcd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3205 MOVStreamContext *sc;
3207 if (c->fc->nb_streams < 1)
3208 return AVERROR_INVALIDDATA;
3209 sc = c->fc->streams[c->fc->nb_streams - 1]->priv_data;
3210 sc->timecode_track = avio_rb32(pb);
3214 static int mov_read_uuid(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3218 static const uint8_t uuid_isml_manifest[] = {
3219 0xa5, 0xd4, 0x0b, 0x30, 0xe8, 0x14, 0x11, 0xdd,
3220 0xba, 0x2f, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66
3223 if (atom.size < sizeof(uuid) || atom.size == INT64_MAX)
3224 return AVERROR_INVALIDDATA;
3226 ret = avio_read(pb, uuid, sizeof(uuid));
3229 } else if (ret != sizeof(uuid)) {
3230 return AVERROR_INVALIDDATA;
3232 if (!memcmp(uuid, uuid_isml_manifest, sizeof(uuid))) {
3233 uint8_t *buffer, *ptr;
3235 size_t len = atom.size - sizeof(uuid);
3238 return AVERROR_INVALIDDATA;
3240 ret = avio_skip(pb, 4); // zeroes
3243 buffer = av_mallocz(len + 1);
3245 return AVERROR(ENOMEM);
3247 ret = avio_read(pb, buffer, len);
3251 } else if (ret != len) {
3253 return AVERROR_INVALIDDATA;
3257 while ((ptr = av_stristr(ptr, "systemBitrate=\""))) {
3258 ptr += sizeof("systemBitrate=\"") - 1;
3259 c->bitrates_count++;
3260 c->bitrates = av_realloc_f(c->bitrates, c->bitrates_count, sizeof(*c->bitrates));
3262 c->bitrates_count = 0;
3264 return AVERROR(ENOMEM);
3267 ret = strtol(ptr, &endptr, 10);
3268 if (ret < 0 || errno || *endptr != '"') {
3269 c->bitrates[c->bitrates_count - 1] = 0;
3271 c->bitrates[c->bitrates_count - 1] = ret;
3280 static int mov_read_free(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3283 uint8_t content[16];
3288 ret = avio_read(pb, content, FFMIN(sizeof(content), atom.size));
3294 && !memcmp(content, "Anevia\x1A\x1A", 8)
3295 && c->use_mfra_for == FF_MOV_FLAG_MFRA_AUTO) {
3296 c->use_mfra_for = FF_MOV_FLAG_MFRA_PTS;
3302 static const MOVParseTableEntry mov_default_parse_table[] = {
3303 { MKTAG('A','C','L','R'), mov_read_avid },
3304 { MKTAG('A','P','R','G'), mov_read_avid },
3305 { MKTAG('A','A','L','P'), mov_read_avid },
3306 { MKTAG('A','R','E','S'), mov_read_ares },
3307 { MKTAG('a','v','s','s'), mov_read_avss },
3308 { MKTAG('c','h','p','l'), mov_read_chpl },
3309 { MKTAG('c','o','6','4'), mov_read_stco },
3310 { MKTAG('c','o','l','r'), mov_read_colr },
3311 { MKTAG('c','t','t','s'), mov_read_ctts }, /* composition time to sample */
3312 { MKTAG('d','i','n','f'), mov_read_default },
3313 { MKTAG('d','r','e','f'), mov_read_dref },
3314 { MKTAG('e','d','t','s'), mov_read_default },
3315 { MKTAG('e','l','s','t'), mov_read_elst },
3316 { MKTAG('e','n','d','a'), mov_read_enda },
3317 { MKTAG('f','i','e','l'), mov_read_fiel },
3318 { MKTAG('f','t','y','p'), mov_read_ftyp },
3319 { MKTAG('g','l','b','l'), mov_read_glbl },
3320 { MKTAG('h','d','l','r'), mov_read_hdlr },
3321 { MKTAG('i','l','s','t'), mov_read_ilst },
3322 { MKTAG('j','p','2','h'), mov_read_jp2h },
3323 { MKTAG('m','d','a','t'), mov_read_mdat },
3324 { MKTAG('m','d','h','d'), mov_read_mdhd },
3325 { MKTAG('m','d','i','a'), mov_read_default },
3326 { MKTAG('m','e','t','a'), mov_read_meta },
3327 { MKTAG('m','i','n','f'), mov_read_default },
3328 { MKTAG('m','o','o','f'), mov_read_moof },
3329 { MKTAG('m','o','o','v'), mov_read_moov },
3330 { MKTAG('m','v','e','x'), mov_read_default },
3331 { MKTAG('m','v','h','d'), mov_read_mvhd },
3332 { MKTAG('S','M','I',' '), mov_read_svq3 },
3333 { MKTAG('a','l','a','c'), mov_read_alac }, /* alac specific atom */
3334 { MKTAG('a','v','c','C'), mov_read_glbl },
3335 { MKTAG('p','a','s','p'), mov_read_pasp },
3336 { MKTAG('s','t','b','l'), mov_read_default },
3337 { MKTAG('s','t','c','o'), mov_read_stco },
3338 { MKTAG('s','t','p','s'), mov_read_stps },
3339 { MKTAG('s','t','r','f'), mov_read_strf },
3340 { MKTAG('s','t','s','c'), mov_read_stsc },
3341 { MKTAG('s','t','s','d'), mov_read_stsd }, /* sample description */
3342 { MKTAG('s','t','s','s'), mov_read_stss }, /* sync sample */
3343 { MKTAG('s','t','s','z'), mov_read_stsz }, /* sample size */
3344 { MKTAG('s','t','t','s'), mov_read_stts },
3345 { MKTAG('s','t','z','2'), mov_read_stsz }, /* compact sample size */
3346 { MKTAG('t','k','h','d'), mov_read_tkhd }, /* track header */
3347 { MKTAG('t','f','d','t'), mov_read_tfdt },
3348 { MKTAG('t','f','h','d'), mov_read_tfhd }, /* track fragment header */
3349 { MKTAG('t','r','a','k'), mov_read_trak },
3350 { MKTAG('t','r','a','f'), mov_read_default },
3351 { MKTAG('t','r','e','f'), mov_read_default },
3352 { MKTAG('t','m','c','d'), mov_read_tmcd },
3353 { MKTAG('c','h','a','p'), mov_read_chap },
3354 { MKTAG('t','r','e','x'), mov_read_trex },
3355 { MKTAG('t','r','u','n'), mov_read_trun },
3356 { MKTAG('u','d','t','a'), mov_read_default },
3357 { MKTAG('w','a','v','e'), mov_read_wave },
3358 { MKTAG('e','s','d','s'), mov_read_esds },
3359 { MKTAG('d','a','c','3'), mov_read_dac3 }, /* AC-3 info */
3360 { MKTAG('d','e','c','3'), mov_read_dec3 }, /* EAC-3 info */
3361 { MKTAG('w','i','d','e'), mov_read_wide }, /* place holder */
3362 { MKTAG('w','f','e','x'), mov_read_wfex },
3363 { MKTAG('c','m','o','v'), mov_read_cmov },
3364 { MKTAG('c','h','a','n'), mov_read_chan }, /* channel layout */
3365 { MKTAG('d','v','c','1'), mov_read_dvc1 },
3366 { MKTAG('s','b','g','p'), mov_read_sbgp },
3367 { MKTAG('h','v','c','C'), mov_read_glbl },
3368 { MKTAG('u','u','i','d'), mov_read_uuid },
3369 { MKTAG('C','i','n', 0x8e), mov_read_targa_y216 },
3370 { MKTAG('f','r','e','e'), mov_read_free },
3371 { MKTAG('-','-','-','-'), mov_read_custom },
3375 static int mov_read_default(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3377 int64_t total_size = 0;
3382 atom.size = INT64_MAX;
3383 while (total_size + 8 <= atom.size && !avio_feof(pb)) {
3384 int (*parse)(MOVContext*, AVIOContext*, MOVAtom) = NULL;
3387 if (atom.size >= 8) {
3388 a.size = avio_rb32(pb);
3389 a.type = avio_rl32(pb);
3390 if (a.type == MKTAG('f','r','e','e') &&
3394 uint32_t *type = (uint32_t *)buf + 1;
3395 avio_read(pb, buf, 8);
3396 avio_seek(pb, -8, SEEK_CUR);
3397 if (*type == MKTAG('m','v','h','d') ||
3398 *type == MKTAG('c','m','o','v')) {
3399 av_log(c->fc, AV_LOG_ERROR, "Detected moov in a free atom.\n");
3400 a.type = MKTAG('m','o','o','v');
3403 if (atom.type != MKTAG('r','o','o','t') &&
3404 atom.type != MKTAG('m','o','o','v'))
3406 if (a.type == MKTAG('t','r','a','k') || a.type == MKTAG('m','d','a','t'))
3408 av_log(c->fc, AV_LOG_ERROR, "Broken file, trak/mdat not at top-level\n");
3414 if (a.size == 1) { /* 64 bit extended size */
3415 a.size = avio_rb64(pb) - 8;
3419 av_dlog(c->fc, "type: %08x '%.4s' parent:'%.4s' sz: %"PRId64" %"PRId64" %"PRId64"\n",
3420 a.type, (char*)&a.type, (char*)&atom.type, a.size, total_size, atom.size);
3422 a.size = atom.size - total_size + 8;
3427 a.size = FFMIN(a.size, atom.size - total_size);
3429 for (i = 0; mov_default_parse_table[i].type; i++)
3430 if (mov_default_parse_table[i].type == a.type) {
3431 parse = mov_default_parse_table[i].parse;
3435 // container is user data
3436 if (!parse && (atom.type == MKTAG('u','d','t','a') ||
3437 atom.type == MKTAG('i','l','s','t')))
3438 parse = mov_read_udta_string;
3440 if (!parse) { /* skip leaf atoms data */
3441 avio_skip(pb, a.size);
3443 int64_t start_pos = avio_tell(pb);
3445 int err = parse(c, pb, a);
3448 if (c->found_moov && c->found_mdat &&
3449 ((!pb->seekable || c->fc->flags & AVFMT_FLAG_IGNIDX) ||
3450 start_pos + a.size == avio_size(pb))) {
3451 if (!pb->seekable || c->fc->flags & AVFMT_FLAG_IGNIDX)
3452 c->next_root_atom = start_pos + a.size;
3455 left = a.size - avio_tell(pb) + start_pos;
3456 if (left > 0) /* skip garbage at atom end */
3457 avio_skip(pb, left);
3458 else if (left < 0) {
3459 av_log(c->fc, AV_LOG_WARNING,
3460 "overread end of atom '%.4s' by %"PRId64" bytes\n",
3461 (char*)&a.type, -left);
3462 avio_seek(pb, left, SEEK_CUR);
3466 total_size += a.size;
3469 if (total_size < atom.size && atom.size < 0x7ffff)
3470 avio_skip(pb, atom.size - total_size);
3475 static int mov_probe(AVProbeData *p)
3480 int moov_offset = -1;
3482 /* check file header */
3485 /* ignore invalid offset */
3486 if ((offset + 8) > (unsigned int)p->buf_size)
3488 tag = AV_RL32(p->buf + offset + 4);
3490 /* check for obvious tags */
3491 case MKTAG('m','o','o','v'):
3492 moov_offset = offset + 4;
3493 case MKTAG('m','d','a','t'):
3494 case MKTAG('p','n','o','t'): /* detect movs with preview pics like ew.mov and april.mov */
3495 case MKTAG('u','d','t','a'): /* Packet Video PVAuthor adds this and a lot of more junk */
3496 case MKTAG('f','t','y','p'):
3497 if (AV_RB32(p->buf+offset) < 8 &&
3498 (AV_RB32(p->buf+offset) != 1 ||
3499 offset + 12 > (unsigned int)p->buf_size ||
3500 AV_RB64(p->buf+offset + 8) == 0)) {
3501 score = FFMAX(score, AVPROBE_SCORE_EXTENSION);
3502 } else if (tag == MKTAG('f','t','y','p') &&
3503 AV_RL32(p->buf + offset + 8) == MKTAG('j','p','2',' ')) {
3504 score = FFMAX(score, 5);
3506 score = AVPROBE_SCORE_MAX;
3508 offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
3510 /* those are more common words, so rate then a bit less */
3511 case MKTAG('e','d','i','w'): /* xdcam files have reverted first tags */
3512 case MKTAG('w','i','d','e'):
3513 case MKTAG('f','r','e','e'):
3514 case MKTAG('j','u','n','k'):
3515 case MKTAG('p','i','c','t'):
3516 score = FFMAX(score, AVPROBE_SCORE_MAX - 5);
3517 offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
3519 case MKTAG(0x82,0x82,0x7f,0x7d):
3520 case MKTAG('s','k','i','p'):
3521 case MKTAG('u','u','i','d'):
3522 case MKTAG('p','r','f','l'):
3523 /* if we only find those cause probedata is too small at least rate them */
3524 score = FFMAX(score, AVPROBE_SCORE_EXTENSION);
3525 offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
3528 offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
3531 if(score > AVPROBE_SCORE_MAX - 50 && moov_offset != -1) {
3532 /* moov atom in the header - we should make sure that this is not a
3533 * MOV-packed MPEG-PS */
3534 offset = moov_offset;
3536 while(offset < (p->buf_size - 16)){ /* Sufficient space */
3537 /* We found an actual hdlr atom */
3538 if(AV_RL32(p->buf + offset ) == MKTAG('h','d','l','r') &&
3539 AV_RL32(p->buf + offset + 8) == MKTAG('m','h','l','r') &&
3540 AV_RL32(p->buf + offset + 12) == MKTAG('M','P','E','G')){
3541 av_log(NULL, AV_LOG_WARNING, "Found media data tag MPEG indicating this is a MOV-packed MPEG-PS.\n");
3542 /* We found a media handler reference atom describing an
3543 * MPEG-PS-in-MOV, return a
3544 * low score to force expanding the probe window until
3545 * mpegps_probe finds what it needs */
3556 // must be done after parsing all trak because there's no order requirement
3557 static void mov_read_chapters(AVFormatContext *s)
3559 MOVContext *mov = s->priv_data;
3560 AVStream *st = NULL;
3561 MOVStreamContext *sc;
3565 for (i = 0; i < s->nb_streams; i++)
3566 if (s->streams[i]->id == mov->chapter_track) {
3571 av_log(s, AV_LOG_ERROR, "Referenced QT chapter track not found\n");
3575 st->discard = AVDISCARD_ALL;
3577 cur_pos = avio_tell(sc->pb);
3579 for (i = 0; i < st->nb_index_entries; i++) {
3580 AVIndexEntry *sample = &st->index_entries[i];
3581 int64_t end = i+1 < st->nb_index_entries ? st->index_entries[i+1].timestamp : st->duration;
3586 if (end < sample->timestamp) {
3587 av_log(s, AV_LOG_WARNING, "ignoring stream duration which is shorter than chapters\n");
3588 end = AV_NOPTS_VALUE;
3591 if (avio_seek(sc->pb, sample->pos, SEEK_SET) != sample->pos) {
3592 av_log(s, AV_LOG_ERROR, "Chapter %d not found in file\n", i);
3596 // the first two bytes are the length of the title
3597 len = avio_rb16(sc->pb);
3598 if (len > sample->size-2)
3600 title_len = 2*len + 1;
3601 if (!(title = av_mallocz(title_len)))
3604 // The samples could theoretically be in any encoding if there's an encd
3605 // atom following, but in practice are only utf-8 or utf-16, distinguished
3606 // instead by the presence of a BOM
3610 ch = avio_rb16(sc->pb);
3612 avio_get_str16be(sc->pb, len, title, title_len);
3613 else if (ch == 0xfffe)
3614 avio_get_str16le(sc->pb, len, title, title_len);
3617 if (len == 1 || len == 2)
3620 avio_get_str(sc->pb, INT_MAX, title + 2, len - 1);
3624 avpriv_new_chapter(s, i, st->time_base, sample->timestamp, end, title);
3628 avio_seek(sc->pb, cur_pos, SEEK_SET);
3631 static int parse_timecode_in_framenum_format(AVFormatContext *s, AVStream *st,
3632 uint32_t value, int flags)
3635 char buf[AV_TIMECODE_STR_SIZE];
3636 AVRational rate = {st->codec->time_base.den,
3637 st->codec->time_base.num};
3638 int ret = av_timecode_init(&tc, rate, flags, 0, s);
3641 av_dict_set(&st->metadata, "timecode",
3642 av_timecode_make_string(&tc, buf, value), 0);
3646 static int mov_read_timecode_track(AVFormatContext *s, AVStream *st)
3648 MOVStreamContext *sc = st->priv_data;
3650 int64_t cur_pos = avio_tell(sc->pb);
3653 if (!st->nb_index_entries)
3656 avio_seek(sc->pb, st->index_entries->pos, SEEK_SET);
3657 value = avio_rb32(s->pb);
3659 if (sc->tmcd_flags & 0x0001) flags |= AV_TIMECODE_FLAG_DROPFRAME;
3660 if (sc->tmcd_flags & 0x0002) flags |= AV_TIMECODE_FLAG_24HOURSMAX;
3661 if (sc->tmcd_flags & 0x0004) flags |= AV_TIMECODE_FLAG_ALLOWNEGATIVE;
3663 /* Assume Counter flag is set to 1 in tmcd track (even though it is likely
3664 * not the case) and thus assume "frame number format" instead of QT one.
3665 * No sample with tmcd track can be found with a QT timecode at the moment,
3666 * despite what the tmcd track "suggests" (Counter flag set to 0 means QT
3668 parse_timecode_in_framenum_format(s, st, value, flags);
3670 avio_seek(sc->pb, cur_pos, SEEK_SET);
3674 static int mov_read_close(AVFormatContext *s)
3676 MOVContext *mov = s->priv_data;
3679 for (i = 0; i < s->nb_streams; i++) {
3680 AVStream *st = s->streams[i];
3681 MOVStreamContext *sc = st->priv_data;
3683 av_freep(&sc->ctts_data);
3684 for (j = 0; j < sc->drefs_count; j++) {
3685 av_freep(&sc->drefs[j].path);
3686 av_freep(&sc->drefs[j].dir);
3688 av_freep(&sc->drefs);
3690 sc->drefs_count = 0;
3692 if (!sc->pb_is_copied)
3696 av_freep(&sc->chunk_offsets);
3697 av_freep(&sc->stsc_data);
3698 av_freep(&sc->sample_sizes);
3699 av_freep(&sc->keyframes);
3700 av_freep(&sc->stts_data);
3701 av_freep(&sc->stps_data);
3702 av_freep(&sc->rap_group);
3703 av_freep(&sc->display_matrix);
3706 if (mov->dv_demux) {
3707 avformat_free_context(mov->dv_fctx);
3708 mov->dv_fctx = NULL;
3711 av_freep(&mov->trex_data);
3712 av_freep(&mov->bitrates);
3714 for (i = 0; i < mov->fragment_index_count; i++) {
3715 MOVFragmentIndex* index = mov->fragment_index_data[i];
3716 av_freep(&index->items);
3717 av_freep(&mov->fragment_index_data[i]);
3719 av_freep(&mov->fragment_index_data);
3724 static int tmcd_is_referenced(AVFormatContext *s, int tmcd_id)
3728 for (i = 0; i < s->nb_streams; i++) {
3729 AVStream *st = s->streams[i];
3730 MOVStreamContext *sc = st->priv_data;
3732 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
3733 sc->timecode_track == tmcd_id)
3739 /* look for a tmcd track not referenced by any video track, and export it globally */
3740 static void export_orphan_timecode(AVFormatContext *s)
3744 for (i = 0; i < s->nb_streams; i++) {
3745 AVStream *st = s->streams[i];
3747 if (st->codec->codec_tag == MKTAG('t','m','c','d') &&
3748 !tmcd_is_referenced(s, i + 1)) {
3749 AVDictionaryEntry *tcr = av_dict_get(st->metadata, "timecode", NULL, 0);
3751 av_dict_set(&s->metadata, "timecode", tcr->value, 0);
3758 static int read_tfra(MOVContext *mov, AVIOContext *f)
3760 MOVFragmentIndex* index = NULL;
3761 int version, fieldlength, i, j, err;
3762 int64_t pos = avio_tell(f);
3763 uint32_t size = avio_rb32(f);
3764 if (avio_rb32(f) != MKBETAG('t', 'f', 'r', 'a')) {
3767 av_log(mov->fc, AV_LOG_VERBOSE, "found tfra\n");
3768 index = av_mallocz(sizeof(MOVFragmentIndex));
3770 return AVERROR(ENOMEM);
3772 mov->fragment_index_count++;
3773 if ((err = av_reallocp(&mov->fragment_index_data,
3774 mov->fragment_index_count *
3775 sizeof(MOVFragmentIndex*))) < 0) {
3779 mov->fragment_index_data[mov->fragment_index_count - 1] =
3782 version = avio_r8(f);
3784 index->track_id = avio_rb32(f);
3785 fieldlength = avio_rb32(f);
3786 index->item_count = avio_rb32(f);
3787 index->items = av_mallocz(
3788 index->item_count * sizeof(MOVFragmentIndexItem));
3789 if (!index->items) {
3790 return AVERROR(ENOMEM);
3792 for (i = 0; i < index->item_count; i++) {
3793 int64_t time, offset;
3795 time = avio_rb64(f);
3796 offset = avio_rb64(f);
3798 time = avio_rb32(f);
3799 offset = avio_rb32(f);
3801 index->items[i].time = time;
3802 index->items[i].moof_offset = offset;
3803 for (j = 0; j < ((fieldlength >> 4) & 3) + 1; j++)
3805 for (j = 0; j < ((fieldlength >> 2) & 3) + 1; j++)
3807 for (j = 0; j < ((fieldlength >> 0) & 3) + 1; j++)
3811 avio_seek(f, pos + size, SEEK_SET);
3815 static int mov_read_mfra(MOVContext *c, AVIOContext *f)
3817 int64_t stream_size = avio_size(f);
3818 int64_t original_pos = avio_tell(f);
3821 if ((ret = avio_seek(f, stream_size - 4, SEEK_SET)) < 0) goto fail;
3822 mfra_size = avio_rb32(f);
3823 if (mfra_size < 0 || mfra_size > stream_size) {
3824 av_log(c->fc, AV_LOG_DEBUG, "doesn't look like mfra (unreasonable size)\n");
3828 if ((ret = avio_seek(f, -mfra_size, SEEK_CUR)) < 0) goto fail;
3829 if (avio_rb32(f) != mfra_size) {
3830 av_log(c->fc, AV_LOG_DEBUG, "doesn't look like mfra (size mismatch)\n");
3834 if (avio_rb32(f) != MKBETAG('m', 'f', 'r', 'a')) {
3835 av_log(c->fc, AV_LOG_DEBUG, "doesn't look like mfra (tag mismatch)\n");
3838 av_log(c->fc, AV_LOG_VERBOSE, "stream has mfra\n");
3839 while (!read_tfra(c, f)) {
3843 ret = avio_seek(f, original_pos, SEEK_SET);
3845 av_log(c->fc, AV_LOG_ERROR,
3846 "failed to seek back after looking for mfra\n");
3852 static int mov_read_header(AVFormatContext *s)
3854 MOVContext *mov = s->priv_data;
3855 AVIOContext *pb = s->pb;
3857 MOVAtom atom = { AV_RL32("root") };
3861 /* .mov and .mp4 aren't streamable anyway (only progressive download if moov is before mdat) */
3863 atom.size = avio_size(pb);
3865 atom.size = INT64_MAX;
3867 /* check MOV header */
3869 if (mov->moov_retry)
3870 avio_seek(pb, 0, SEEK_SET);
3871 if ((err = mov_read_default(mov, pb, atom)) < 0) {
3872 av_log(s, AV_LOG_ERROR, "error reading header\n");
3876 } while (pb->seekable && !mov->found_moov && !mov->moov_retry++);
3877 if (!mov->found_moov) {
3878 av_log(s, AV_LOG_ERROR, "moov atom not found\n");
3880 return AVERROR_INVALIDDATA;
3882 av_dlog(mov->fc, "on_parse_exit_offset=%"PRId64"\n", avio_tell(pb));
3885 if (mov->chapter_track > 0)
3886 mov_read_chapters(s);
3887 for (i = 0; i < s->nb_streams; i++)
3888 if (s->streams[i]->codec->codec_tag == AV_RL32("tmcd"))
3889 mov_read_timecode_track(s, s->streams[i]);
3892 /* copy timecode metadata from tmcd tracks to the related video streams */
3893 for (i = 0; i < s->nb_streams; i++) {
3894 AVStream *st = s->streams[i];
3895 MOVStreamContext *sc = st->priv_data;
3896 if (sc->timecode_track > 0) {
3897 AVDictionaryEntry *tcr;
3898 int tmcd_st_id = -1;
3900 for (j = 0; j < s->nb_streams; j++)
3901 if (s->streams[j]->id == sc->timecode_track)
3904 if (tmcd_st_id < 0 || tmcd_st_id == i)
3906 tcr = av_dict_get(s->streams[tmcd_st_id]->metadata, "timecode", NULL, 0);
3908 av_dict_set(&st->metadata, "timecode", tcr->value, 0);
3911 export_orphan_timecode(s);
3913 for (i = 0; i < s->nb_streams; i++) {
3914 AVStream *st = s->streams[i];
3915 MOVStreamContext *sc = st->priv_data;
3916 fix_timescale(mov, sc);
3917 if(st->codec->codec_type == AVMEDIA_TYPE_AUDIO && st->codec->codec_id == AV_CODEC_ID_AAC) {
3918 st->skip_samples = sc->start_pad;
3920 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && sc->nb_frames_for_fps > 0 && sc->duration_for_fps > 0)
3921 av_reduce(&st->avg_frame_rate.num, &st->avg_frame_rate.den,
3922 sc->time_scale*(int64_t)sc->nb_frames_for_fps, sc->duration_for_fps, INT_MAX);
3923 if (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
3924 if (st->codec->width <= 0 && st->codec->height <= 0) {
3925 st->codec->width = sc->width;
3926 st->codec->height = sc->height;
3928 if (st->codec->codec_id == AV_CODEC_ID_DVD_SUBTITLE) {
3929 if ((err = mov_rewrite_dvd_sub_extradata(st)) < 0)
3935 if (mov->trex_data) {
3936 for (i = 0; i < s->nb_streams; i++) {
3937 AVStream *st = s->streams[i];
3938 MOVStreamContext *sc = st->priv_data;
3939 if (st->duration > 0)
3940 st->codec->bit_rate = sc->data_size * 8 * sc->time_scale / st->duration;
3944 for (i = 0; i < mov->bitrates_count && i < s->nb_streams; i++) {
3945 if (mov->bitrates[i]) {
3946 s->streams[i]->codec->bit_rate = mov->bitrates[i];
3950 ff_rfps_calculate(s);
3952 for (i = 0; i < s->nb_streams; i++) {
3953 AVStream *st = s->streams[i];
3954 MOVStreamContext *sc = st->priv_data;
3956 switch (st->codec->codec_type) {
3957 case AVMEDIA_TYPE_AUDIO:
3958 err = ff_replaygain_export(st, s->metadata);
3964 case AVMEDIA_TYPE_VIDEO:
3965 if (sc->display_matrix) {
3966 AVPacketSideData *sd, *tmp;
3968 tmp = av_realloc_array(st->side_data,
3969 st->nb_side_data + 1, sizeof(*tmp));
3971 return AVERROR(ENOMEM);
3973 st->side_data = tmp;
3976 sd = &st->side_data[st->nb_side_data - 1];
3977 sd->type = AV_PKT_DATA_DISPLAYMATRIX;
3978 sd->size = sizeof(int32_t) * 9;
3979 sd->data = (uint8_t*)sc->display_matrix;
3980 sc->display_matrix = NULL;
3989 static AVIndexEntry *mov_find_next_sample(AVFormatContext *s, AVStream **st)
3991 AVIndexEntry *sample = NULL;
3992 int64_t best_dts = INT64_MAX;
3994 for (i = 0; i < s->nb_streams; i++) {
3995 AVStream *avst = s->streams[i];
3996 MOVStreamContext *msc = avst->priv_data;
3997 if (msc->pb && msc->current_sample < avst->nb_index_entries) {
3998 AVIndexEntry *current_sample = &avst->index_entries[msc->current_sample];
3999 int64_t dts = av_rescale(current_sample->timestamp, AV_TIME_BASE, msc->time_scale);
4000 av_dlog(s, "stream %d, sample %d, dts %"PRId64"\n", i, msc->current_sample, dts);
4001 if (!sample || (!s->pb->seekable && current_sample->pos < sample->pos) ||
4003 ((msc->pb != s->pb && dts < best_dts) || (msc->pb == s->pb &&
4004 ((FFABS(best_dts - dts) <= AV_TIME_BASE && current_sample->pos < sample->pos) ||
4005 (FFABS(best_dts - dts) > AV_TIME_BASE && dts < best_dts)))))) {
4006 sample = current_sample;
4015 static int mov_read_packet(AVFormatContext *s, AVPacket *pkt)
4017 MOVContext *mov = s->priv_data;
4018 MOVStreamContext *sc;
4019 AVIndexEntry *sample;
4020 AVStream *st = NULL;
4024 sample = mov_find_next_sample(s, &st);
4026 mov->found_mdat = 0;
4027 if (!mov->next_root_atom)
4029 avio_seek(s->pb, mov->next_root_atom, SEEK_SET);
4030 mov->next_root_atom = 0;
4031 if (mov_read_default(mov, s->pb, (MOVAtom){ AV_RL32("root"), INT64_MAX }) < 0 ||
4034 av_dlog(s, "read fragments, offset 0x%"PRIx64"\n", avio_tell(s->pb));
4038 /* must be done just before reading, to avoid infinite loop on sample */
4039 sc->current_sample++;
4041 if (mov->next_root_atom) {
4042 sample->pos = FFMIN(sample->pos, mov->next_root_atom);
4043 sample->size = FFMIN(sample->size, (mov->next_root_atom - sample->pos));
4046 if (st->discard != AVDISCARD_ALL) {
4047 if (avio_seek(sc->pb, sample->pos, SEEK_SET) != sample->pos) {
4048 av_log(mov->fc, AV_LOG_ERROR, "stream %d, offset 0x%"PRIx64": partial file\n",
4049 sc->ffindex, sample->pos);
4050 return AVERROR_INVALIDDATA;
4052 ret = av_get_packet(sc->pb, pkt, sample->size);
4055 if (sc->has_palette) {
4058 pal = av_packet_new_side_data(pkt, AV_PKT_DATA_PALETTE, AVPALETTE_SIZE);
4060 av_log(mov->fc, AV_LOG_ERROR, "Cannot append palette to packet\n");
4062 memcpy(pal, sc->palette, AVPALETTE_SIZE);
4063 sc->has_palette = 0;
4066 #if CONFIG_DV_DEMUXER
4067 if (mov->dv_demux && sc->dv_audio_container) {
4068 avpriv_dv_produce_packet(mov->dv_demux, pkt, pkt->data, pkt->size, pkt->pos);
4071 ret = avpriv_dv_get_packet(mov->dv_demux, pkt);
4078 pkt->stream_index = sc->ffindex;
4079 pkt->dts = sample->timestamp;
4080 if (sc->ctts_data && sc->ctts_index < sc->ctts_count) {
4081 pkt->pts = pkt->dts + sc->dts_shift + sc->ctts_data[sc->ctts_index].duration;
4082 /* update ctts context */
4084 if (sc->ctts_index < sc->ctts_count &&
4085 sc->ctts_data[sc->ctts_index].count == sc->ctts_sample) {
4087 sc->ctts_sample = 0;
4090 pkt->dts = AV_NOPTS_VALUE;
4092 int64_t next_dts = (sc->current_sample < st->nb_index_entries) ?
4093 st->index_entries[sc->current_sample].timestamp : st->duration;
4094 pkt->duration = next_dts - pkt->dts;
4095 pkt->pts = pkt->dts;
4097 if (st->discard == AVDISCARD_ALL)
4099 pkt->flags |= sample->flags & AVINDEX_KEYFRAME ? AV_PKT_FLAG_KEY : 0;
4100 pkt->pos = sample->pos;
4101 av_dlog(s, "stream %d, pts %"PRId64", dts %"PRId64", pos 0x%"PRIx64", duration %d\n",
4102 pkt->stream_index, pkt->pts, pkt->dts, pkt->pos, pkt->duration);
4106 static int mov_seek_stream(AVFormatContext *s, AVStream *st, int64_t timestamp, int flags)
4108 MOVStreamContext *sc = st->priv_data;
4109 int sample, time_sample;
4112 sample = av_index_search_timestamp(st, timestamp, flags);
4113 av_dlog(s, "stream %d, timestamp %"PRId64", sample %d\n", st->index, timestamp, sample);
4114 if (sample < 0 && st->nb_index_entries && timestamp < st->index_entries[0].timestamp)
4116 if (sample < 0) /* not sure what to do */
4117 return AVERROR_INVALIDDATA;
4118 sc->current_sample = sample;
4119 av_dlog(s, "stream %d, found sample %d\n", st->index, sc->current_sample);
4120 /* adjust ctts index */
4121 if (sc->ctts_data) {
4123 for (i = 0; i < sc->ctts_count; i++) {
4124 int next = time_sample + sc->ctts_data[i].count;
4125 if (next > sc->current_sample) {
4127 sc->ctts_sample = sc->current_sample - time_sample;
4136 static int mov_read_seek(AVFormatContext *s, int stream_index, int64_t sample_time, int flags)
4139 int64_t seek_timestamp, timestamp;
4143 if (stream_index >= s->nb_streams)
4144 return AVERROR_INVALIDDATA;
4146 st = s->streams[stream_index];
4147 sample = mov_seek_stream(s, st, sample_time, flags);
4151 /* adjust seek timestamp to found sample timestamp */
4152 seek_timestamp = st->index_entries[sample].timestamp;
4154 for (i = 0; i < s->nb_streams; i++) {
4155 MOVStreamContext *sc = s->streams[i]->priv_data;
4157 st->skip_samples = (sample_time <= 0) ? sc->start_pad : 0;
4159 if (stream_index == i)
4162 timestamp = av_rescale_q(seek_timestamp, s->streams[stream_index]->time_base, st->time_base);
4163 mov_seek_stream(s, st, timestamp, flags);
4168 static const AVOption options[] = {
4169 {"use_absolute_path",
4170 "allow using absolute path when opening alias, this is a possible security issue",
4171 offsetof(MOVContext, use_absolute_path), FF_OPT_TYPE_INT, {.i64 = 0},
4172 0, 1, AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_DECODING_PARAM},
4173 {"ignore_editlist", "", offsetof(MOVContext, ignore_editlist), FF_OPT_TYPE_INT, {.i64 = 0},
4174 0, 1, AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_DECODING_PARAM},
4176 "use mfra for fragment timestamps",
4177 offsetof(MOVContext, use_mfra_for), FF_OPT_TYPE_INT, {.i64 = FF_MOV_FLAG_MFRA_AUTO},
4178 -1, FF_MOV_FLAG_MFRA_PTS, AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_DECODING_PARAM,
4180 {"auto", "auto", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_MFRA_AUTO}, 0, 0,
4181 AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_DECODING_PARAM, "use_mfra_for" },
4182 {"dts", "dts", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_MFRA_DTS}, 0, 0,
4183 AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_DECODING_PARAM, "use_mfra_for" },
4184 {"pts", "pts", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_MFRA_PTS}, 0, 0,
4185 AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_DECODING_PARAM, "use_mfra_for" },
4189 static const AVClass mov_class = {
4190 .class_name = "mov,mp4,m4a,3gp,3g2,mj2",
4191 .item_name = av_default_item_name,
4193 .version = LIBAVUTIL_VERSION_INT,
4196 AVInputFormat ff_mov_demuxer = {
4197 .name = "mov,mp4,m4a,3gp,3g2,mj2",
4198 .long_name = NULL_IF_CONFIG_SMALL("QuickTime / MOV"),
4199 .priv_data_size = sizeof(MOVContext),
4200 .extensions = "mov,mp4,m4a,3gp,3g2,mj2",
4201 .read_probe = mov_probe,
4202 .read_header = mov_read_header,
4203 .read_packet = mov_read_packet,
4204 .read_close = mov_read_close,
4205 .read_seek = mov_read_seek,
4206 .priv_class = &mov_class,
4207 .flags = AVFMT_NO_BYTE_SEEK,