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/time_internal.h"
39 #include "libavutil/avstring.h"
40 #include "libavutil/dict.h"
41 #include "libavutil/opt.h"
42 #include "libavutil/timecode.h"
43 #include "libavcodec/ac3tab.h"
46 #include "avio_internal.h"
49 #include "libavcodec/get_bits.h"
52 #include "replaygain.h"
58 #include "qtpalette.h"
64 /* those functions parse an atom */
65 /* links atom IDs to parse functions */
66 typedef struct MOVParseTableEntry {
68 int (*parse)(MOVContext *ctx, AVIOContext *pb, MOVAtom atom);
71 static int mov_read_default(MOVContext *c, AVIOContext *pb, MOVAtom atom);
72 static int mov_read_mfra(MOVContext *c, AVIOContext *f);
74 static int mov_metadata_track_or_disc_number(MOVContext *c, AVIOContext *pb,
75 unsigned len, const char *key)
79 short current, total = 0;
80 avio_rb16(pb); // unknown
81 current = avio_rb16(pb);
83 total = avio_rb16(pb);
85 snprintf(buf, sizeof(buf), "%d", current);
87 snprintf(buf, sizeof(buf), "%d/%d", current, total);
88 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
89 av_dict_set(&c->fc->metadata, key, buf, 0);
94 static int mov_metadata_int8_bypass_padding(MOVContext *c, AVIOContext *pb,
95 unsigned len, const char *key)
97 /* bypass padding bytes */
102 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
103 av_dict_set_int(&c->fc->metadata, key, avio_r8(pb), 0);
108 static int mov_metadata_int8_no_padding(MOVContext *c, AVIOContext *pb,
109 unsigned len, const char *key)
111 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
112 av_dict_set_int(&c->fc->metadata, key, avio_r8(pb), 0);
117 static int mov_metadata_gnre(MOVContext *c, AVIOContext *pb,
118 unsigned len, const char *key)
122 avio_r8(pb); // unknown
125 if (genre < 1 || genre > ID3v1_GENRE_MAX)
127 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
128 av_dict_set(&c->fc->metadata, key, ff_id3v1_genre_str[genre-1], 0);
133 static const uint32_t mac_to_unicode[128] = {
134 0x00C4,0x00C5,0x00C7,0x00C9,0x00D1,0x00D6,0x00DC,0x00E1,
135 0x00E0,0x00E2,0x00E4,0x00E3,0x00E5,0x00E7,0x00E9,0x00E8,
136 0x00EA,0x00EB,0x00ED,0x00EC,0x00EE,0x00EF,0x00F1,0x00F3,
137 0x00F2,0x00F4,0x00F6,0x00F5,0x00FA,0x00F9,0x00FB,0x00FC,
138 0x2020,0x00B0,0x00A2,0x00A3,0x00A7,0x2022,0x00B6,0x00DF,
139 0x00AE,0x00A9,0x2122,0x00B4,0x00A8,0x2260,0x00C6,0x00D8,
140 0x221E,0x00B1,0x2264,0x2265,0x00A5,0x00B5,0x2202,0x2211,
141 0x220F,0x03C0,0x222B,0x00AA,0x00BA,0x03A9,0x00E6,0x00F8,
142 0x00BF,0x00A1,0x00AC,0x221A,0x0192,0x2248,0x2206,0x00AB,
143 0x00BB,0x2026,0x00A0,0x00C0,0x00C3,0x00D5,0x0152,0x0153,
144 0x2013,0x2014,0x201C,0x201D,0x2018,0x2019,0x00F7,0x25CA,
145 0x00FF,0x0178,0x2044,0x20AC,0x2039,0x203A,0xFB01,0xFB02,
146 0x2021,0x00B7,0x201A,0x201E,0x2030,0x00C2,0x00CA,0x00C1,
147 0x00CB,0x00C8,0x00CD,0x00CE,0x00CF,0x00CC,0x00D3,0x00D4,
148 0xF8FF,0x00D2,0x00DA,0x00DB,0x00D9,0x0131,0x02C6,0x02DC,
149 0x00AF,0x02D8,0x02D9,0x02DA,0x00B8,0x02DD,0x02DB,0x02C7,
152 static int mov_read_mac_string(MOVContext *c, AVIOContext *pb, int len,
153 char *dst, int dstlen)
156 char *end = dst+dstlen-1;
159 for (i = 0; i < len; i++) {
160 uint8_t t, c = avio_r8(pb);
161 if (c < 0x80 && p < end)
164 PUT_UTF8(mac_to_unicode[c-0x80], t, if (p < end) *p++ = t;);
170 static int mov_read_covr(MOVContext *c, AVIOContext *pb, int type, int len)
174 MOVStreamContext *sc;
179 case 0xd: id = AV_CODEC_ID_MJPEG; break;
180 case 0xe: id = AV_CODEC_ID_PNG; break;
181 case 0x1b: id = AV_CODEC_ID_BMP; break;
183 av_log(c->fc, AV_LOG_WARNING, "Unknown cover type: 0x%x.\n", type);
188 st = avformat_new_stream(c->fc, NULL);
190 return AVERROR(ENOMEM);
191 sc = av_mallocz(sizeof(*sc));
193 return AVERROR(ENOMEM);
196 ret = av_get_packet(pb, &pkt, len);
200 st->disposition |= AV_DISPOSITION_ATTACHED_PIC;
202 st->attached_pic = pkt;
203 st->attached_pic.stream_index = st->index;
204 st->attached_pic.flags |= AV_PKT_FLAG_KEY;
206 st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
207 st->codec->codec_id = id;
212 static int mov_metadata_raw(MOVContext *c, AVIOContext *pb,
213 unsigned len, const char *key)
215 char *value = av_malloc(len + 1);
217 return AVERROR(ENOMEM);
218 avio_read(pb, value, len);
220 return av_dict_set(&c->fc->metadata, key, value, AV_DICT_DONT_STRDUP_VAL);
223 static int mov_metadata_loci(MOVContext *c, AVIOContext *pb, unsigned len)
225 char language[4] = { 0 };
227 uint16_t langcode = 0;
228 double longitude, latitude;
229 const char *key = "location";
231 if (len < 4 + 2 + 1 + 1 + 4 + 4 + 4)
232 return AVERROR_INVALIDDATA;
234 avio_skip(pb, 4); // version+flags
235 langcode = avio_rb16(pb);
236 ff_mov_lang_to_iso639(langcode, language);
239 len -= avio_get_str(pb, len, buf, sizeof(buf)); // place name
241 return AVERROR_INVALIDDATA;
242 avio_skip(pb, 1); // role
246 return AVERROR_INVALIDDATA;
247 longitude = ((int32_t) avio_rb32(pb)) / (float) (1 << 16);
248 latitude = ((int32_t) avio_rb32(pb)) / (float) (1 << 16);
250 // Try to output in the same format as the ?xyz field
251 snprintf(buf, sizeof(buf), "%+08.4f%+09.4f/", latitude, longitude);
252 if (*language && strcmp(language, "und")) {
254 snprintf(key2, sizeof(key2), "%s-%s", key, language);
255 av_dict_set(&c->fc->metadata, key2, buf, 0);
257 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
258 return av_dict_set(&c->fc->metadata, key, buf, 0);
261 static int mov_read_udta_string(MOVContext *c, AVIOContext *pb, MOVAtom atom)
263 #ifdef MOV_EXPORT_ALL_METADATA
266 char key2[16], language[4] = {0};
268 const char *key = NULL;
269 uint16_t langcode = 0;
270 uint32_t data_type = 0, str_size, str_size_alloc;
271 int (*parse)(MOVContext*, AVIOContext*, unsigned, const char*) = NULL;
274 case MKTAG(0xa9,'n','a','m'): key = "title"; break;
275 case MKTAG(0xa9,'a','u','t'):
276 case MKTAG(0xa9,'A','R','T'): key = "artist"; break;
277 case MKTAG( 'a','A','R','T'): key = "album_artist"; break;
278 case MKTAG(0xa9,'w','r','t'): key = "composer"; break;
279 case MKTAG( 'c','p','i','l'): key = "compilation";
280 parse = mov_metadata_int8_no_padding; break;
281 case MKTAG( 'c','p','r','t'):
282 case MKTAG(0xa9,'c','p','y'): key = "copyright"; break;
283 case MKTAG(0xa9,'g','r','p'): key = "grouping"; break;
284 case MKTAG(0xa9,'l','y','r'): key = "lyrics"; break;
285 case MKTAG(0xa9,'c','m','t'):
286 case MKTAG(0xa9,'i','n','f'): key = "comment"; break;
287 case MKTAG(0xa9,'a','l','b'): key = "album"; break;
288 case MKTAG(0xa9,'d','a','y'): key = "date"; break;
289 case MKTAG(0xa9,'g','e','n'): key = "genre"; break;
290 case MKTAG( 'g','n','r','e'): key = "genre";
291 parse = mov_metadata_gnre; break;
292 case MKTAG(0xa9,'t','o','o'):
293 case MKTAG(0xa9,'s','w','r'): key = "encoder"; break;
294 case MKTAG(0xa9,'e','n','c'): key = "encoder"; break;
295 case MKTAG(0xa9,'m','a','k'): key = "make"; break;
296 case MKTAG(0xa9,'m','o','d'): key = "model"; break;
297 case MKTAG(0xa9,'x','y','z'): key = "location"; break;
298 case MKTAG( 'd','e','s','c'): key = "description";break;
299 case MKTAG( 'l','d','e','s'): key = "synopsis"; break;
300 case MKTAG( 't','v','s','h'): key = "show"; break;
301 case MKTAG( 't','v','e','n'): key = "episode_id";break;
302 case MKTAG( 't','v','n','n'): key = "network"; break;
303 case MKTAG( 't','r','k','n'): key = "track";
304 parse = mov_metadata_track_or_disc_number; break;
305 case MKTAG( 'd','i','s','k'): key = "disc";
306 parse = mov_metadata_track_or_disc_number; break;
307 case MKTAG( 't','v','e','s'): key = "episode_sort";
308 parse = mov_metadata_int8_bypass_padding; break;
309 case MKTAG( 't','v','s','n'): key = "season_number";
310 parse = mov_metadata_int8_bypass_padding; break;
311 case MKTAG( 's','t','i','k'): key = "media_type";
312 parse = mov_metadata_int8_no_padding; break;
313 case MKTAG( 'h','d','v','d'): key = "hd_video";
314 parse = mov_metadata_int8_no_padding; break;
315 case MKTAG( 'p','g','a','p'): key = "gapless_playback";
316 parse = mov_metadata_int8_no_padding; break;
317 case MKTAG( '@','P','R','M'):
318 return mov_metadata_raw(c, pb, atom.size, "premiere_version");
319 case MKTAG( '@','P','R','Q'):
320 return mov_metadata_raw(c, pb, atom.size, "quicktime_version");
321 case MKTAG( 'l','o','c','i'):
322 return mov_metadata_loci(c, pb, atom.size);
323 case MKTAG( 'X','M','P','_'):
324 return mov_metadata_raw(c, pb, atom.size, "xmp");
327 if (c->itunes_metadata && atom.size > 8) {
328 int data_size = avio_rb32(pb);
329 int tag = avio_rl32(pb);
330 if (tag == MKTAG('d','a','t','a')) {
331 data_type = avio_rb32(pb); // type
332 avio_rb32(pb); // unknown
333 str_size = data_size - 16;
336 if (atom.type == MKTAG('c', 'o', 'v', 'r')) {
337 int ret = mov_read_covr(c, pb, data_type, str_size);
339 av_log(c->fc, AV_LOG_ERROR, "Error parsing cover art.\n");
344 } else if (atom.size > 4 && key && !c->itunes_metadata) {
345 str_size = avio_rb16(pb); // string length
346 langcode = avio_rb16(pb);
347 ff_mov_lang_to_iso639(langcode, language);
350 str_size = atom.size;
352 #ifdef MOV_EXPORT_ALL_METADATA
354 snprintf(tmp_key, 5, "%.4s", (char*)&atom.type);
362 return AVERROR_INVALIDDATA;
364 str_size_alloc = str_size << 1; // worst-case requirement for output string in case of utf8 coded input
365 str = av_malloc(str_size_alloc);
367 return AVERROR(ENOMEM);
370 parse(c, pb, str_size, key);
372 if (data_type == 3 || (data_type == 0 && (langcode < 0x400 || langcode == 0x7fff))) { // MAC Encoded
373 mov_read_mac_string(c, pb, str_size, str, str_size_alloc);
375 int ret = avio_read(pb, str, str_size);
376 if (ret != str_size) {
378 return ret < 0 ? ret : AVERROR_INVALIDDATA;
382 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
383 av_dict_set(&c->fc->metadata, key, str, 0);
384 if (*language && strcmp(language, "und")) {
385 snprintf(key2, sizeof(key2), "%s-%s", key, language);
386 av_dict_set(&c->fc->metadata, key2, str, 0);
389 av_dlog(c->fc, "lang \"%3s\" ", language);
390 av_dlog(c->fc, "tag \"%s\" value \"%s\" atom \"%.4s\" %d %"PRId64"\n",
391 key, str, (char*)&atom.type, str_size_alloc, atom.size);
398 static int mov_read_chpl(MOVContext *c, AVIOContext *pb, MOVAtom atom)
401 int i, nb_chapters, str_len, version;
404 if ((atom.size -= 5) < 0)
407 version = avio_r8(pb);
410 avio_rb32(pb); // ???
411 nb_chapters = avio_r8(pb);
413 for (i = 0; i < nb_chapters; i++) {
417 start = avio_rb64(pb);
418 str_len = avio_r8(pb);
420 if ((atom.size -= 9+str_len) < 0)
423 avio_read(pb, str, str_len);
425 avpriv_new_chapter(c->fc, i, (AVRational){1,10000000}, start, AV_NOPTS_VALUE, str);
430 #define MIN_DATA_ENTRY_BOX_SIZE 12
431 static int mov_read_dref(MOVContext *c, AVIOContext *pb, MOVAtom atom)
434 MOVStreamContext *sc;
437 if (c->fc->nb_streams < 1)
439 st = c->fc->streams[c->fc->nb_streams-1];
442 avio_rb32(pb); // version + flags
443 entries = avio_rb32(pb);
444 if (entries > (atom.size - 1) / MIN_DATA_ENTRY_BOX_SIZE + 1 ||
445 entries >= UINT_MAX / sizeof(*sc->drefs))
446 return AVERROR_INVALIDDATA;
449 sc->drefs = av_mallocz(entries * sizeof(*sc->drefs));
451 return AVERROR(ENOMEM);
452 sc->drefs_count = entries;
454 for (i = 0; i < sc->drefs_count; i++) {
455 MOVDref *dref = &sc->drefs[i];
456 uint32_t size = avio_rb32(pb);
457 int64_t next = avio_tell(pb) + size - 4;
460 return AVERROR_INVALIDDATA;
462 dref->type = avio_rl32(pb);
463 avio_rb32(pb); // version + flags
464 av_dlog(c->fc, "type %.4s size %d\n", (char*)&dref->type, size);
466 if (dref->type == MKTAG('a','l','i','s') && size > 150) {
467 /* macintosh alias record */
468 uint16_t volume_len, len;
473 volume_len = avio_r8(pb);
474 volume_len = FFMIN(volume_len, 27);
475 avio_read(pb, dref->volume, 27);
476 dref->volume[volume_len] = 0;
477 av_log(c->fc, AV_LOG_DEBUG, "volume %s, len %d\n", dref->volume, volume_len);
482 len = FFMIN(len, 63);
483 avio_read(pb, dref->filename, 63);
484 dref->filename[len] = 0;
485 av_log(c->fc, AV_LOG_DEBUG, "filename %s, len %d\n", dref->filename, len);
489 /* read next level up_from_alias/down_to_target */
490 dref->nlvl_from = avio_rb16(pb);
491 dref->nlvl_to = avio_rb16(pb);
492 av_log(c->fc, AV_LOG_DEBUG, "nlvl from %d, nlvl to %d\n",
493 dref->nlvl_from, dref->nlvl_to);
497 for (type = 0; type != -1 && avio_tell(pb) < next; ) {
500 type = avio_rb16(pb);
502 av_log(c->fc, AV_LOG_DEBUG, "type %d, len %d\n", type, len);
505 if (type == 2) { // absolute path
507 dref->path = av_mallocz(len+1);
509 return AVERROR(ENOMEM);
510 avio_read(pb, dref->path, len);
511 if (len > volume_len && !strncmp(dref->path, dref->volume, volume_len)) {
513 memmove(dref->path, dref->path+volume_len, len);
516 for (j = 0; j < len; j++)
517 if (dref->path[j] == ':')
519 av_log(c->fc, AV_LOG_DEBUG, "path %s\n", dref->path);
520 } else if (type == 0) { // directory name
522 dref->dir = av_malloc(len+1);
524 return AVERROR(ENOMEM);
525 if (avio_read(pb, dref->dir, len) != len)
526 return AVERROR_INVALIDDATA;
528 for (j = 0; j < len; j++)
529 if (dref->dir[j] == ':')
531 av_log(c->fc, AV_LOG_DEBUG, "dir %s\n", dref->dir);
536 avio_seek(pb, next, SEEK_SET);
541 static int mov_read_hdlr(MOVContext *c, AVIOContext *pb, MOVAtom atom)
545 uint32_t av_unused ctype;
549 if (c->fc->nb_streams < 1) // meta before first trak
552 st = c->fc->streams[c->fc->nb_streams-1];
554 avio_r8(pb); /* version */
555 avio_rb24(pb); /* flags */
558 ctype = avio_rl32(pb);
559 type = avio_rl32(pb); /* component subtype */
561 av_dlog(c->fc, "ctype= %.4s (0x%08x)\n", (char*)&ctype, ctype);
562 av_dlog(c->fc, "stype= %.4s\n", (char*)&type);
564 if (type == MKTAG('v','i','d','e'))
565 st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
566 else if (type == MKTAG('s','o','u','n'))
567 st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
568 else if (type == MKTAG('m','1','a',' '))
569 st->codec->codec_id = AV_CODEC_ID_MP2;
570 else if ((type == MKTAG('s','u','b','p')) || (type == MKTAG('c','l','c','p')))
571 st->codec->codec_type = AVMEDIA_TYPE_SUBTITLE;
573 avio_rb32(pb); /* component manufacture */
574 avio_rb32(pb); /* component flags */
575 avio_rb32(pb); /* component flags mask */
577 title_size = atom.size - 24;
578 if (title_size > 0) {
579 title_str = av_malloc(title_size + 1); /* Add null terminator */
581 return AVERROR(ENOMEM);
582 avio_read(pb, title_str, title_size);
583 title_str[title_size] = 0;
585 av_dict_set(&st->metadata, "handler_name", title_str +
586 (!c->isom && title_str[0] == title_size - 1), 0);
587 av_freep(&title_str);
593 int ff_mov_read_esds(AVFormatContext *fc, AVIOContext *pb)
598 if (fc->nb_streams < 1)
600 st = fc->streams[fc->nb_streams-1];
602 avio_rb32(pb); /* version + flags */
603 ff_mp4_read_descr(fc, pb, &tag);
604 if (tag == MP4ESDescrTag) {
605 ff_mp4_parse_es_descr(pb, NULL);
607 avio_rb16(pb); /* ID */
609 ff_mp4_read_descr(fc, pb, &tag);
610 if (tag == MP4DecConfigDescrTag)
611 ff_mp4_read_dec_config_descr(fc, st, pb);
615 static int mov_read_esds(MOVContext *c, AVIOContext *pb, MOVAtom atom)
617 return ff_mov_read_esds(c->fc, pb);
620 static int mov_read_dac3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
623 int ac3info, acmod, lfeon, bsmod;
625 if (c->fc->nb_streams < 1)
627 st = c->fc->streams[c->fc->nb_streams-1];
629 ac3info = avio_rb24(pb);
630 bsmod = (ac3info >> 14) & 0x7;
631 acmod = (ac3info >> 11) & 0x7;
632 lfeon = (ac3info >> 10) & 0x1;
633 st->codec->channels = ((int[]){2,1,2,3,3,4,4,5})[acmod] + lfeon;
634 st->codec->channel_layout = avpriv_ac3_channel_layout_tab[acmod];
636 st->codec->channel_layout |= AV_CH_LOW_FREQUENCY;
637 st->codec->audio_service_type = bsmod;
638 if (st->codec->channels > 1 && bsmod == 0x7)
639 st->codec->audio_service_type = AV_AUDIO_SERVICE_TYPE_KARAOKE;
644 static int mov_read_dec3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
647 int eac3info, acmod, lfeon, bsmod;
649 if (c->fc->nb_streams < 1)
651 st = c->fc->streams[c->fc->nb_streams-1];
653 /* No need to parse fields for additional independent substreams and its
654 * associated dependent substreams since libavcodec's E-AC-3 decoder
655 * does not support them yet. */
656 avio_rb16(pb); /* data_rate and num_ind_sub */
657 eac3info = avio_rb24(pb);
658 bsmod = (eac3info >> 12) & 0x1f;
659 acmod = (eac3info >> 9) & 0x7;
660 lfeon = (eac3info >> 8) & 0x1;
661 st->codec->channel_layout = avpriv_ac3_channel_layout_tab[acmod];
663 st->codec->channel_layout |= AV_CH_LOW_FREQUENCY;
664 st->codec->channels = av_get_channel_layout_nb_channels(st->codec->channel_layout);
665 st->codec->audio_service_type = bsmod;
666 if (st->codec->channels > 1 && bsmod == 0x7)
667 st->codec->audio_service_type = AV_AUDIO_SERVICE_TYPE_KARAOKE;
672 static int mov_read_chan(MOVContext *c, AVIOContext *pb, MOVAtom atom)
676 if (c->fc->nb_streams < 1)
678 st = c->fc->streams[c->fc->nb_streams-1];
683 /* skip version and flags */
686 ff_mov_read_chan(c->fc, pb, st, atom.size - 4);
691 static int mov_read_wfex(MOVContext *c, AVIOContext *pb, MOVAtom atom)
695 if (c->fc->nb_streams < 1)
697 st = c->fc->streams[c->fc->nb_streams-1];
699 if (ff_get_wav_header(pb, st->codec, atom.size) < 0) {
700 av_log(c->fc, AV_LOG_WARNING, "get_wav_header failed\n");
706 static int mov_read_pasp(MOVContext *c, AVIOContext *pb, MOVAtom atom)
708 const int num = avio_rb32(pb);
709 const int den = avio_rb32(pb);
712 if (c->fc->nb_streams < 1)
714 st = c->fc->streams[c->fc->nb_streams-1];
716 if ((st->sample_aspect_ratio.den != 1 || st->sample_aspect_ratio.num) && // default
717 (den != st->sample_aspect_ratio.den || num != st->sample_aspect_ratio.num)) {
718 av_log(c->fc, AV_LOG_WARNING,
719 "sample aspect ratio already set to %d:%d, ignoring 'pasp' atom (%d:%d)\n",
720 st->sample_aspect_ratio.num, st->sample_aspect_ratio.den,
722 } else if (den != 0) {
723 st->sample_aspect_ratio.num = num;
724 st->sample_aspect_ratio.den = den;
729 /* this atom contains actual media data */
730 static int mov_read_mdat(MOVContext *c, AVIOContext *pb, MOVAtom atom)
732 if (atom.size == 0) /* wrong one (MP4) */
735 return 0; /* now go for moov */
738 /* read major brand, minor version and compatible brands and store them as metadata */
739 static int mov_read_ftyp(MOVContext *c, AVIOContext *pb, MOVAtom atom)
743 char* comp_brands_str;
744 uint8_t type[5] = {0};
746 avio_read(pb, type, 4);
747 if (strcmp(type, "qt "))
749 av_log(c->fc, AV_LOG_DEBUG, "ISO: File Type Major Brand: %.4s\n",(char *)&type);
750 av_dict_set(&c->fc->metadata, "major_brand", type, 0);
751 minor_ver = avio_rb32(pb); /* minor version */
752 av_dict_set_int(&c->fc->metadata, "minor_version", minor_ver, 0);
754 comp_brand_size = atom.size - 8;
755 if (comp_brand_size < 0)
756 return AVERROR_INVALIDDATA;
757 comp_brands_str = av_malloc(comp_brand_size + 1); /* Add null terminator */
758 if (!comp_brands_str)
759 return AVERROR(ENOMEM);
760 avio_read(pb, comp_brands_str, comp_brand_size);
761 comp_brands_str[comp_brand_size] = 0;
762 av_dict_set(&c->fc->metadata, "compatible_brands", comp_brands_str, 0);
763 av_freep(&comp_brands_str);
768 /* this atom should contain all header atoms */
769 static int mov_read_moov(MOVContext *c, AVIOContext *pb, MOVAtom atom)
774 av_log(c->fc, AV_LOG_WARNING, "Found duplicated MOOV Atom. Skipped it\n");
775 avio_skip(pb, atom.size);
779 if ((ret = mov_read_default(c, pb, atom)) < 0)
781 /* we parsed the 'moov' atom, we can terminate the parsing as soon as we find the 'mdat' */
782 /* so we don't parse the whole file if over a network */
784 return 0; /* now go for mdat */
787 static int mov_read_moof(MOVContext *c, AVIOContext *pb, MOVAtom atom)
789 if (!c->has_looked_for_mfra && c->use_mfra_for > 0) {
790 c->has_looked_for_mfra = 1;
793 av_log(c->fc, AV_LOG_VERBOSE, "stream has moof boxes, will look "
795 if ((ret = mov_read_mfra(c, pb)) < 0) {
796 av_log(c->fc, AV_LOG_VERBOSE, "found a moof box but failed to "
797 "read the mfra (may be a live ismv)\n");
800 av_log(c->fc, AV_LOG_VERBOSE, "found a moof box but stream is not "
801 "seekable, can not look for mfra\n");
804 c->fragment.moof_offset = c->fragment.implicit_offset = avio_tell(pb) - 8;
805 av_dlog(c->fc, "moof offset %"PRIx64"\n", c->fragment.moof_offset);
806 return mov_read_default(c, pb, atom);
809 static void mov_metadata_creation_time(AVDictionary **metadata, int64_t time)
813 struct tm *ptm, tmbuf;
815 if(time >= 2082844800)
816 time -= 2082844800; /* seconds between 1904-01-01 and Epoch */
818 ptm = gmtime_r(&timet, &tmbuf);
820 if (strftime(buffer, sizeof(buffer), "%Y-%m-%d %H:%M:%S", ptm))
821 av_dict_set(metadata, "creation_time", buffer, 0);
825 static int mov_read_mdhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
828 MOVStreamContext *sc;
830 char language[4] = {0};
832 int64_t creation_time;
834 if (c->fc->nb_streams < 1)
836 st = c->fc->streams[c->fc->nb_streams-1];
839 if (sc->time_scale) {
840 av_log(c->fc, AV_LOG_ERROR, "Multiple mdhd?\n");
841 return AVERROR_INVALIDDATA;
844 version = avio_r8(pb);
846 avpriv_request_sample(c->fc, "Version %d", version);
847 return AVERROR_PATCHWELCOME;
849 avio_rb24(pb); /* flags */
851 creation_time = avio_rb64(pb);
854 creation_time = avio_rb32(pb);
855 avio_rb32(pb); /* modification time */
857 mov_metadata_creation_time(&st->metadata, creation_time);
859 sc->time_scale = avio_rb32(pb);
860 st->duration = (version == 1) ? avio_rb64(pb) : avio_rb32(pb); /* duration */
862 lang = avio_rb16(pb); /* language */
863 if (ff_mov_lang_to_iso639(lang, language))
864 av_dict_set(&st->metadata, "language", language, 0);
865 avio_rb16(pb); /* quality */
870 static int mov_read_mvhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
872 int64_t creation_time;
873 int version = avio_r8(pb); /* version */
874 avio_rb24(pb); /* flags */
877 creation_time = avio_rb64(pb);
880 creation_time = avio_rb32(pb);
881 avio_rb32(pb); /* modification time */
883 mov_metadata_creation_time(&c->fc->metadata, creation_time);
884 c->time_scale = avio_rb32(pb); /* time scale */
886 av_dlog(c->fc, "time scale = %i\n", c->time_scale);
888 c->duration = (version == 1) ? avio_rb64(pb) : avio_rb32(pb); /* duration */
889 // set the AVCodecContext duration because the duration of individual tracks
891 if (c->time_scale > 0 && !c->trex_data)
892 c->fc->duration = av_rescale(c->duration, AV_TIME_BASE, c->time_scale);
893 avio_rb32(pb); /* preferred scale */
895 avio_rb16(pb); /* preferred volume */
897 avio_skip(pb, 10); /* reserved */
899 avio_skip(pb, 36); /* display matrix */
901 avio_rb32(pb); /* preview time */
902 avio_rb32(pb); /* preview duration */
903 avio_rb32(pb); /* poster time */
904 avio_rb32(pb); /* selection time */
905 avio_rb32(pb); /* selection duration */
906 avio_rb32(pb); /* current time */
907 avio_rb32(pb); /* next track ID */
911 static int mov_read_enda(MOVContext *c, AVIOContext *pb, MOVAtom atom)
916 if (c->fc->nb_streams < 1)
918 st = c->fc->streams[c->fc->nb_streams-1];
920 little_endian = avio_rb16(pb) & 0xFF;
921 av_dlog(c->fc, "enda %d\n", little_endian);
922 if (little_endian == 1) {
923 switch (st->codec->codec_id) {
924 case AV_CODEC_ID_PCM_S24BE:
925 st->codec->codec_id = AV_CODEC_ID_PCM_S24LE;
927 case AV_CODEC_ID_PCM_S32BE:
928 st->codec->codec_id = AV_CODEC_ID_PCM_S32LE;
930 case AV_CODEC_ID_PCM_F32BE:
931 st->codec->codec_id = AV_CODEC_ID_PCM_F32LE;
933 case AV_CODEC_ID_PCM_F64BE:
934 st->codec->codec_id = AV_CODEC_ID_PCM_F64LE;
943 static int mov_read_colr(MOVContext *c, AVIOContext *pb, MOVAtom atom)
946 char color_parameter_type[5] = { 0 };
947 int color_primaries, color_trc, color_matrix;
949 if (c->fc->nb_streams < 1)
951 st = c->fc->streams[c->fc->nb_streams - 1];
953 avio_read(pb, color_parameter_type, 4);
954 if (strncmp(color_parameter_type, "nclx", 4) &&
955 strncmp(color_parameter_type, "nclc", 4)) {
956 av_log(c->fc, AV_LOG_WARNING, "unsupported color_parameter_type %s\n",
957 color_parameter_type);
961 color_primaries = avio_rb16(pb);
962 color_trc = avio_rb16(pb);
963 color_matrix = avio_rb16(pb);
965 av_dlog(c->fc, "%s: pri %d trc %d matrix %d",
966 color_parameter_type, color_primaries, color_trc, color_matrix);
969 uint8_t color_range = avio_r8(pb) >> 7;
970 av_dlog(c->fc, " full %"PRIu8"", color_range);
972 st->codec->color_range = AVCOL_RANGE_JPEG;
974 st->codec->color_range = AVCOL_RANGE_MPEG;
975 /* 14496-12 references JPEG XR specs (rather than the more complete
976 * 23001-8) so some adjusting is required */
977 if (color_primaries >= AVCOL_PRI_FILM)
978 color_primaries = AVCOL_PRI_UNSPECIFIED;
979 if ((color_trc >= AVCOL_TRC_LINEAR &&
980 color_trc <= AVCOL_TRC_LOG_SQRT) ||
981 color_trc >= AVCOL_TRC_BT2020_10)
982 color_trc = AVCOL_TRC_UNSPECIFIED;
983 if (color_matrix >= AVCOL_SPC_BT2020_NCL)
984 color_matrix = AVCOL_SPC_UNSPECIFIED;
985 st->codec->color_primaries = color_primaries;
986 st->codec->color_trc = color_trc;
987 st->codec->colorspace = color_matrix;
989 /* color primaries, Table 4-4 */
990 switch (color_primaries) {
991 case 1: st->codec->color_primaries = AVCOL_PRI_BT709; break;
992 case 5: st->codec->color_primaries = AVCOL_PRI_SMPTE170M; break;
993 case 6: st->codec->color_primaries = AVCOL_PRI_SMPTE240M; break;
995 /* color transfer, Table 4-5 */
997 case 1: st->codec->color_trc = AVCOL_TRC_BT709; break;
998 case 7: st->codec->color_trc = AVCOL_TRC_SMPTE240M; break;
1000 /* color matrix, Table 4-6 */
1001 switch (color_matrix) {
1002 case 1: st->codec->colorspace = AVCOL_SPC_BT709; break;
1003 case 6: st->codec->colorspace = AVCOL_SPC_BT470BG; break;
1004 case 7: st->codec->colorspace = AVCOL_SPC_SMPTE240M; break;
1007 av_dlog(c->fc, "\n");
1012 static int mov_read_fiel(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1015 unsigned mov_field_order;
1016 enum AVFieldOrder decoded_field_order = AV_FIELD_UNKNOWN;
1018 if (c->fc->nb_streams < 1) // will happen with jp2 files
1020 st = c->fc->streams[c->fc->nb_streams-1];
1022 return AVERROR_INVALIDDATA;
1023 mov_field_order = avio_rb16(pb);
1024 if ((mov_field_order & 0xFF00) == 0x0100)
1025 decoded_field_order = AV_FIELD_PROGRESSIVE;
1026 else if ((mov_field_order & 0xFF00) == 0x0200) {
1027 switch (mov_field_order & 0xFF) {
1028 case 0x01: decoded_field_order = AV_FIELD_TT;
1030 case 0x06: decoded_field_order = AV_FIELD_BB;
1032 case 0x09: decoded_field_order = AV_FIELD_TB;
1034 case 0x0E: decoded_field_order = AV_FIELD_BT;
1038 if (decoded_field_order == AV_FIELD_UNKNOWN && mov_field_order) {
1039 av_log(NULL, AV_LOG_ERROR, "Unknown MOV field order 0x%04x\n", mov_field_order);
1041 st->codec->field_order = decoded_field_order;
1046 /* FIXME modify qdm2/svq3/h264 decoders to take full atom as extradata */
1047 static int mov_read_extradata(MOVContext *c, AVIOContext *pb, MOVAtom atom,
1048 enum AVCodecID codec_id)
1055 if (c->fc->nb_streams < 1) // will happen with jp2 files
1057 st= c->fc->streams[c->fc->nb_streams-1];
1059 if (st->codec->codec_id != codec_id)
1060 return 0; /* unexpected codec_id - don't mess with extradata */
1062 size= (uint64_t)st->codec->extradata_size + atom.size + 8 + FF_INPUT_BUFFER_PADDING_SIZE;
1063 if (size > INT_MAX || (uint64_t)atom.size > INT_MAX)
1064 return AVERROR_INVALIDDATA;
1065 if ((err = av_reallocp(&st->codec->extradata, size)) < 0) {
1066 st->codec->extradata_size = 0;
1069 buf = st->codec->extradata + st->codec->extradata_size;
1070 st->codec->extradata_size= size - FF_INPUT_BUFFER_PADDING_SIZE;
1071 AV_WB32( buf , atom.size + 8);
1072 AV_WL32( buf + 4, atom.type);
1073 err = avio_read(pb, buf + 8, atom.size);
1076 } else if (err < atom.size) {
1077 av_log(c->fc, AV_LOG_WARNING, "truncated extradata\n");
1078 st->codec->extradata_size -= atom.size - err;
1080 memset(buf + 8 + err, 0, FF_INPUT_BUFFER_PADDING_SIZE);
1084 /* wrapper functions for reading ALAC/AVS/MJPEG/MJPEG2000 extradata atoms only for those codecs */
1085 static int mov_read_alac(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1087 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_ALAC);
1090 static int mov_read_avss(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1092 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_AVS);
1095 static int mov_read_jp2h(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1097 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_JPEG2000);
1100 static int mov_read_avid(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1102 int ret = mov_read_extradata(c, pb, atom, AV_CODEC_ID_AVUI);
1104 ret = mov_read_extradata(c, pb, atom, AV_CODEC_ID_DNXHD);
1108 static int mov_read_targa_y216(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1110 int ret = mov_read_extradata(c, pb, atom, AV_CODEC_ID_TARGA_Y216);
1112 if (!ret && c->fc->nb_streams >= 1) {
1113 AVCodecContext *avctx = c->fc->streams[c->fc->nb_streams-1]->codec;
1114 if (avctx->extradata_size >= 40) {
1115 avctx->height = AV_RB16(&avctx->extradata[36]);
1116 avctx->width = AV_RB16(&avctx->extradata[38]);
1122 static int mov_read_ares(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1124 if (c->fc->nb_streams >= 1) {
1125 AVCodecContext *codec = c->fc->streams[c->fc->nb_streams-1]->codec;
1126 if (codec->codec_tag == MKTAG('A', 'V', 'i', 'n') &&
1127 codec->codec_id == AV_CODEC_ID_H264 &&
1130 /* For AVID AVCI50, force width of 1440 to be able to select the correct SPS and PPS */
1131 if (avio_rb16(pb) == 0xd4d)
1132 codec->width = 1440;
1137 return mov_read_avid(c, pb, atom);
1140 static int mov_read_svq3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1142 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_SVQ3);
1145 static int mov_read_wave(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1149 if (c->fc->nb_streams < 1)
1151 st = c->fc->streams[c->fc->nb_streams-1];
1153 if ((uint64_t)atom.size > (1<<30))
1154 return AVERROR_INVALIDDATA;
1156 if (st->codec->codec_id == AV_CODEC_ID_QDM2 ||
1157 st->codec->codec_id == AV_CODEC_ID_QDMC ||
1158 st->codec->codec_id == AV_CODEC_ID_SPEEX) {
1159 // pass all frma atom to codec, needed at least for QDMC and QDM2
1160 av_free(st->codec->extradata);
1161 if (ff_get_extradata(st->codec, pb, atom.size) < 0)
1162 return AVERROR(ENOMEM);
1163 } else if (atom.size > 8) { /* to read frma, esds atoms */
1165 if ((ret = mov_read_default(c, pb, atom)) < 0)
1168 avio_skip(pb, atom.size);
1173 * This function reads atom content and puts data in extradata without tag
1174 * nor size unlike mov_read_extradata.
1176 static int mov_read_glbl(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1180 if (c->fc->nb_streams < 1)
1182 st = c->fc->streams[c->fc->nb_streams-1];
1184 if ((uint64_t)atom.size > (1<<30))
1185 return AVERROR_INVALIDDATA;
1187 if (atom.size >= 10) {
1188 // Broken files created by legacy versions of libavformat will
1189 // wrap a whole fiel atom inside of a glbl atom.
1190 unsigned size = avio_rb32(pb);
1191 unsigned type = avio_rl32(pb);
1192 avio_seek(pb, -8, SEEK_CUR);
1193 if (type == MKTAG('f','i','e','l') && size == atom.size)
1194 return mov_read_default(c, pb, atom);
1196 if (st->codec->extradata_size > 1 && st->codec->extradata) {
1197 av_log(c, AV_LOG_WARNING, "ignoring multiple glbl\n");
1200 av_free(st->codec->extradata);
1201 if (ff_get_extradata(st->codec, pb, atom.size) < 0)
1202 return AVERROR(ENOMEM);
1207 static int mov_read_dvc1(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1210 uint8_t profile_level;
1213 if (c->fc->nb_streams < 1)
1215 st = c->fc->streams[c->fc->nb_streams-1];
1217 if (atom.size >= (1<<28) || atom.size < 7)
1218 return AVERROR_INVALIDDATA;
1220 profile_level = avio_r8(pb);
1221 if ((profile_level & 0xf0) != 0xc0)
1224 avio_seek(pb, 6, SEEK_CUR);
1225 av_free(st->codec->extradata);
1226 if ((ret = ff_get_extradata(st->codec, pb, atom.size - 7)) < 0)
1233 * An strf atom is a BITMAPINFOHEADER struct. This struct is 40 bytes itself,
1234 * but can have extradata appended at the end after the 40 bytes belonging
1237 static int mov_read_strf(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1241 if (c->fc->nb_streams < 1)
1243 if (atom.size <= 40)
1245 st = c->fc->streams[c->fc->nb_streams-1];
1247 if ((uint64_t)atom.size > (1<<30))
1248 return AVERROR_INVALIDDATA;
1251 av_free(st->codec->extradata);
1252 if (ff_get_extradata(st->codec, pb, atom.size - 40) < 0)
1253 return AVERROR(ENOMEM);
1257 static int mov_read_stco(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1260 MOVStreamContext *sc;
1261 unsigned int i, entries;
1263 if (c->fc->nb_streams < 1)
1265 st = c->fc->streams[c->fc->nb_streams-1];
1268 avio_r8(pb); /* version */
1269 avio_rb24(pb); /* flags */
1271 entries = avio_rb32(pb);
1275 if (entries >= UINT_MAX/sizeof(int64_t))
1276 return AVERROR_INVALIDDATA;
1278 sc->chunk_offsets = av_malloc(entries * sizeof(int64_t));
1279 if (!sc->chunk_offsets)
1280 return AVERROR(ENOMEM);
1281 sc->chunk_count = entries;
1283 if (atom.type == MKTAG('s','t','c','o'))
1284 for (i = 0; i < entries && !pb->eof_reached; i++)
1285 sc->chunk_offsets[i] = avio_rb32(pb);
1286 else if (atom.type == MKTAG('c','o','6','4'))
1287 for (i = 0; i < entries && !pb->eof_reached; i++)
1288 sc->chunk_offsets[i] = avio_rb64(pb);
1290 return AVERROR_INVALIDDATA;
1292 sc->chunk_count = i;
1294 if (pb->eof_reached)
1301 * Compute codec id for 'lpcm' tag.
1302 * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
1304 enum AVCodecID ff_mov_get_lpcm_codec_id(int bps, int flags)
1311 return ff_get_pcm_codec_id(bps, flags & 1, flags & 2, flags & 4 ? -1 : 0);
1314 static int mov_codec_id(AVStream *st, uint32_t format)
1316 int id = ff_codec_get_id(ff_codec_movaudio_tags, format);
1319 ((format & 0xFFFF) == 'm' + ('s' << 8) ||
1320 (format & 0xFFFF) == 'T' + ('S' << 8)))
1321 id = ff_codec_get_id(ff_codec_wav_tags, av_bswap32(format) & 0xFFFF);
1323 if (st->codec->codec_type != AVMEDIA_TYPE_VIDEO && id > 0) {
1324 st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
1325 } else if (st->codec->codec_type != AVMEDIA_TYPE_AUDIO &&
1326 /* skip old asf mpeg4 tag */
1327 format && format != MKTAG('m','p','4','s')) {
1328 id = ff_codec_get_id(ff_codec_movvideo_tags, format);
1330 id = ff_codec_get_id(ff_codec_bmp_tags, format);
1332 st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
1333 else if (st->codec->codec_type == AVMEDIA_TYPE_DATA ||
1334 (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE &&
1335 st->codec->codec_id == AV_CODEC_ID_NONE)) {
1336 id = ff_codec_get_id(ff_codec_movsubtitle_tags, format);
1338 st->codec->codec_type = AVMEDIA_TYPE_SUBTITLE;
1342 st->codec->codec_tag = format;
1347 static void mov_parse_stsd_video(MOVContext *c, AVIOContext *pb,
1348 AVStream *st, MOVStreamContext *sc)
1350 uint8_t codec_name[32];
1351 unsigned int color_depth, len, j;
1352 int color_greyscale;
1355 avio_rb16(pb); /* version */
1356 avio_rb16(pb); /* revision level */
1357 avio_rb32(pb); /* vendor */
1358 avio_rb32(pb); /* temporal quality */
1359 avio_rb32(pb); /* spatial quality */
1361 st->codec->width = avio_rb16(pb); /* width */
1362 st->codec->height = avio_rb16(pb); /* height */
1364 avio_rb32(pb); /* horiz resolution */
1365 avio_rb32(pb); /* vert resolution */
1366 avio_rb32(pb); /* data size, always 0 */
1367 avio_rb16(pb); /* frames per samples */
1369 len = avio_r8(pb); /* codec name, pascal string */
1372 mov_read_mac_string(c, pb, len, codec_name, sizeof(codec_name));
1374 avio_skip(pb, 31 - len);
1377 av_dict_set(&st->metadata, "encoder", codec_name, 0);
1379 /* codec_tag YV12 triggers an UV swap in rawdec.c */
1380 if (!memcmp(codec_name, "Planar Y'CbCr 8-bit 4:2:0", 25)) {
1381 st->codec->codec_tag = MKTAG('I', '4', '2', '0');
1382 st->codec->width &= ~1;
1383 st->codec->height &= ~1;
1385 /* Flash Media Server uses tag H263 with Sorenson Spark */
1386 if (st->codec->codec_tag == MKTAG('H','2','6','3') &&
1387 !memcmp(codec_name, "Sorenson H263", 13))
1388 st->codec->codec_id = AV_CODEC_ID_FLV1;
1390 st->codec->bits_per_coded_sample = avio_rb16(pb); /* depth */
1391 color_table_id = avio_rb16(pb); /* colortable id */
1392 av_dlog(c->fc, "depth %d, ctab id %d\n",
1393 st->codec->bits_per_coded_sample, color_table_id);
1394 /* figure out the palette situation */
1395 color_depth = st->codec->bits_per_coded_sample & 0x1F;
1396 color_greyscale = st->codec->bits_per_coded_sample & 0x20;
1397 /* Do not create a greyscale palette for cinepak */
1398 if (color_greyscale && st->codec->codec_id == AV_CODEC_ID_CINEPAK)
1401 /* if the depth is 2, 4, or 8 bpp, file is palettized */
1402 if ((color_depth == 2) || (color_depth == 4) || (color_depth == 8)) {
1403 /* for palette traversal */
1404 unsigned int color_start, color_count, color_end;
1405 unsigned char a, r, g, b;
1407 if (color_greyscale) {
1408 int color_index, color_dec;
1409 /* compute the greyscale palette */
1410 st->codec->bits_per_coded_sample = color_depth;
1411 color_count = 1 << color_depth;
1413 color_dec = 256 / (color_count - 1);
1414 for (j = 0; j < color_count; j++) {
1415 r = g = b = color_index;
1416 sc->palette[j] = (0xFFU << 24) | (r << 16) | (g << 8) | (b);
1417 color_index -= color_dec;
1418 if (color_index < 0)
1421 } else if (color_table_id) {
1422 const uint8_t *color_table;
1423 /* if flag bit 3 is set, use the default palette */
1424 color_count = 1 << color_depth;
1425 if (color_depth == 2)
1426 color_table = ff_qt_default_palette_4;
1427 else if (color_depth == 4)
1428 color_table = ff_qt_default_palette_16;
1430 color_table = ff_qt_default_palette_256;
1432 for (j = 0; j < color_count; j++) {
1433 r = color_table[j * 3 + 0];
1434 g = color_table[j * 3 + 1];
1435 b = color_table[j * 3 + 2];
1436 sc->palette[j] = (0xFFU << 24) | (r << 16) | (g << 8) | (b);
1439 /* load the palette from the file */
1440 color_start = avio_rb32(pb);
1441 color_count = avio_rb16(pb);
1442 color_end = avio_rb16(pb);
1443 if ((color_start <= 255) && (color_end <= 255)) {
1444 for (j = color_start; j <= color_end; j++) {
1445 /* each A, R, G, or B component is 16 bits;
1446 * only use the top 8 bits */
1455 sc->palette[j] = (a << 24 ) | (r << 16) | (g << 8) | (b);
1459 sc->has_palette = 1;
1463 static void mov_parse_stsd_audio(MOVContext *c, AVIOContext *pb,
1464 AVStream *st, MOVStreamContext *sc)
1466 int bits_per_sample, flags;
1467 uint16_t version = avio_rb16(pb);
1468 AVDictionaryEntry *compatible_brands = av_dict_get(c->fc->metadata, "compatible_brands", NULL, AV_DICT_MATCH_CASE);
1470 avio_rb16(pb); /* revision level */
1471 avio_rb32(pb); /* vendor */
1473 st->codec->channels = avio_rb16(pb); /* channel count */
1474 st->codec->bits_per_coded_sample = avio_rb16(pb); /* sample size */
1475 av_dlog(c->fc, "audio channels %d\n", st->codec->channels);
1477 sc->audio_cid = avio_rb16(pb);
1478 avio_rb16(pb); /* packet size = 0 */
1480 st->codec->sample_rate = ((avio_rb32(pb) >> 16));
1482 // Read QT version 1 fields. In version 0 these do not exist.
1483 av_dlog(c->fc, "version =%d, isom =%d\n", version, c->isom);
1485 (compatible_brands && strstr(compatible_brands->value, "qt "))) {
1488 sc->samples_per_frame = avio_rb32(pb);
1489 avio_rb32(pb); /* bytes per packet */
1490 sc->bytes_per_frame = avio_rb32(pb);
1491 avio_rb32(pb); /* bytes per sample */
1492 } else if (version == 2) {
1493 avio_rb32(pb); /* sizeof struct only */
1494 st->codec->sample_rate = av_int2double(avio_rb64(pb));
1495 st->codec->channels = avio_rb32(pb);
1496 avio_rb32(pb); /* always 0x7F000000 */
1497 st->codec->bits_per_coded_sample = avio_rb32(pb);
1499 flags = avio_rb32(pb); /* lpcm format specific flag */
1500 sc->bytes_per_frame = avio_rb32(pb);
1501 sc->samples_per_frame = avio_rb32(pb);
1502 if (st->codec->codec_tag == MKTAG('l','p','c','m'))
1503 st->codec->codec_id =
1504 ff_mov_get_lpcm_codec_id(st->codec->bits_per_coded_sample,
1509 switch (st->codec->codec_id) {
1510 case AV_CODEC_ID_PCM_S8:
1511 case AV_CODEC_ID_PCM_U8:
1512 if (st->codec->bits_per_coded_sample == 16)
1513 st->codec->codec_id = AV_CODEC_ID_PCM_S16BE;
1515 case AV_CODEC_ID_PCM_S16LE:
1516 case AV_CODEC_ID_PCM_S16BE:
1517 if (st->codec->bits_per_coded_sample == 8)
1518 st->codec->codec_id = AV_CODEC_ID_PCM_S8;
1519 else if (st->codec->bits_per_coded_sample == 24)
1520 st->codec->codec_id =
1521 st->codec->codec_id == AV_CODEC_ID_PCM_S16BE ?
1522 AV_CODEC_ID_PCM_S24BE : AV_CODEC_ID_PCM_S24LE;
1523 else if (st->codec->bits_per_coded_sample == 32)
1524 st->codec->codec_id =
1525 st->codec->codec_id == AV_CODEC_ID_PCM_S16BE ?
1526 AV_CODEC_ID_PCM_S32BE : AV_CODEC_ID_PCM_S32LE;
1528 /* set values for old format before stsd version 1 appeared */
1529 case AV_CODEC_ID_MACE3:
1530 sc->samples_per_frame = 6;
1531 sc->bytes_per_frame = 2 * st->codec->channels;
1533 case AV_CODEC_ID_MACE6:
1534 sc->samples_per_frame = 6;
1535 sc->bytes_per_frame = 1 * st->codec->channels;
1537 case AV_CODEC_ID_ADPCM_IMA_QT:
1538 sc->samples_per_frame = 64;
1539 sc->bytes_per_frame = 34 * st->codec->channels;
1541 case AV_CODEC_ID_GSM:
1542 sc->samples_per_frame = 160;
1543 sc->bytes_per_frame = 33;
1549 bits_per_sample = av_get_bits_per_sample(st->codec->codec_id);
1550 if (bits_per_sample) {
1551 st->codec->bits_per_coded_sample = bits_per_sample;
1552 sc->sample_size = (bits_per_sample >> 3) * st->codec->channels;
1556 static void mov_parse_stsd_subtitle(MOVContext *c, AVIOContext *pb,
1557 AVStream *st, MOVStreamContext *sc,
1560 // ttxt stsd contains display flags, justification, background
1561 // color, fonts, and default styles, so fake an atom to read it
1562 MOVAtom fake_atom = { .size = size };
1563 // mp4s contains a regular esds atom
1564 if (st->codec->codec_tag != AV_RL32("mp4s"))
1565 mov_read_glbl(c, pb, fake_atom);
1566 st->codec->width = sc->width;
1567 st->codec->height = sc->height;
1570 static uint32_t yuv_to_rgba(uint32_t ycbcr)
1575 y = (ycbcr >> 16) & 0xFF;
1576 cr = (ycbcr >> 8) & 0xFF;
1579 b = av_clip_uint8(1.164 * (y - 16) + 2.018 * (cb - 128));
1580 g = av_clip_uint8(1.164 * (y - 16) - 0.813 * (cr - 128) - 0.391 * (cb - 128));
1581 r = av_clip_uint8(1.164 * (y - 16) + 1.596 * (cr - 128));
1583 return (r << 16) | (g << 8) | b;
1586 static int mov_rewrite_dvd_sub_extradata(AVStream *st)
1588 char buf[256] = {0};
1589 uint8_t *src = st->codec->extradata;
1592 if (st->codec->extradata_size != 64)
1595 if (st->codec->width > 0 && st->codec->height > 0)
1596 snprintf(buf, sizeof(buf), "size: %dx%d\n",
1597 st->codec->width, st->codec->height);
1598 av_strlcat(buf, "palette: ", sizeof(buf));
1600 for (i = 0; i < 16; i++) {
1601 uint32_t yuv = AV_RB32(src + i * 4);
1602 uint32_t rgba = yuv_to_rgba(yuv);
1604 av_strlcatf(buf, sizeof(buf), "%06"PRIx32"%s", rgba, i != 15 ? ", " : "");
1607 if (av_strlcat(buf, "\n", sizeof(buf)) >= sizeof(buf))
1610 av_freep(&st->codec->extradata);
1611 st->codec->extradata_size = 0;
1612 st->codec->extradata = av_mallocz(strlen(buf) + FF_INPUT_BUFFER_PADDING_SIZE);
1613 if (!st->codec->extradata)
1614 return AVERROR(ENOMEM);
1615 st->codec->extradata_size = strlen(buf);
1616 memcpy(st->codec->extradata, buf, st->codec->extradata_size);
1621 static int mov_parse_stsd_data(MOVContext *c, AVIOContext *pb,
1622 AVStream *st, MOVStreamContext *sc,
1625 if (st->codec->codec_tag == MKTAG('t','m','c','d')) {
1626 if (ff_get_extradata(st->codec, pb, size) < 0)
1627 return AVERROR(ENOMEM);
1629 MOVStreamContext *tmcd_ctx = st->priv_data;
1631 val = AV_RB32(st->codec->extradata + 4);
1632 tmcd_ctx->tmcd_flags = val;
1634 st->codec->flags2 |= CODEC_FLAG2_DROP_FRAME_TIMECODE;
1635 st->codec->time_base.den = st->codec->extradata[16]; /* number of frame */
1636 st->codec->time_base.num = 1;
1638 uint32_t len = AV_RB32(st->codec->extradata + 18); /* name atom length */
1639 uint32_t format = AV_RB32(st->codec->extradata + 22);
1640 if (format == AV_RB32("name") && (int64_t)size >= (int64_t)len + 18) {
1641 uint16_t str_size = AV_RB16(st->codec->extradata + 26); /* string length */
1642 if (str_size > 0 && size >= (int)str_size + 26) {
1643 char *reel_name = av_malloc(str_size + 1);
1645 return AVERROR(ENOMEM);
1646 memcpy(reel_name, st->codec->extradata + 30, str_size);
1647 reel_name[str_size] = 0; /* Add null terminator */
1648 /* don't add reel_name if emtpy string */
1649 if (*reel_name == 0) {
1652 av_dict_set(&st->metadata, "reel_name", reel_name, AV_DICT_DONT_STRDUP_VAL);
1659 /* other codec type, just skip (rtp, mp4s ...) */
1660 avio_skip(pb, size);
1665 static int mov_finalize_stsd_codec(MOVContext *c, AVIOContext *pb,
1666 AVStream *st, MOVStreamContext *sc)
1668 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
1669 !st->codec->sample_rate && sc->time_scale > 1)
1670 st->codec->sample_rate = sc->time_scale;
1672 /* special codec parameters handling */
1673 switch (st->codec->codec_id) {
1674 #if CONFIG_DV_DEMUXER
1675 case AV_CODEC_ID_DVAUDIO:
1676 c->dv_fctx = avformat_alloc_context();
1677 c->dv_demux = avpriv_dv_init_demux(c->dv_fctx);
1679 av_log(c->fc, AV_LOG_ERROR, "dv demux context init error\n");
1680 return AVERROR(ENOMEM);
1682 sc->dv_audio_container = 1;
1683 st->codec->codec_id = AV_CODEC_ID_PCM_S16LE;
1686 /* no ifdef since parameters are always those */
1687 case AV_CODEC_ID_QCELP:
1688 st->codec->channels = 1;
1689 // force sample rate for qcelp when not stored in mov
1690 if (st->codec->codec_tag != MKTAG('Q','c','l','p'))
1691 st->codec->sample_rate = 8000;
1692 // FIXME: Why is the following needed for some files?
1693 sc->samples_per_frame = 160;
1694 if (!sc->bytes_per_frame)
1695 sc->bytes_per_frame = 35;
1697 case AV_CODEC_ID_AMR_NB:
1698 st->codec->channels = 1;
1699 /* force sample rate for amr, stsd in 3gp does not store sample rate */
1700 st->codec->sample_rate = 8000;
1702 case AV_CODEC_ID_AMR_WB:
1703 st->codec->channels = 1;
1704 st->codec->sample_rate = 16000;
1706 case AV_CODEC_ID_MP2:
1707 case AV_CODEC_ID_MP3:
1708 /* force type after stsd for m1a hdlr */
1709 st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
1710 st->need_parsing = AVSTREAM_PARSE_FULL;
1712 case AV_CODEC_ID_GSM:
1713 case AV_CODEC_ID_ADPCM_MS:
1714 case AV_CODEC_ID_ADPCM_IMA_WAV:
1715 case AV_CODEC_ID_ILBC:
1716 case AV_CODEC_ID_MACE3:
1717 case AV_CODEC_ID_MACE6:
1718 case AV_CODEC_ID_QDM2:
1719 st->codec->block_align = sc->bytes_per_frame;
1721 case AV_CODEC_ID_ALAC:
1722 if (st->codec->extradata_size == 36) {
1723 st->codec->channels = AV_RB8 (st->codec->extradata + 21);
1724 st->codec->sample_rate = AV_RB32(st->codec->extradata + 32);
1727 case AV_CODEC_ID_AC3:
1728 case AV_CODEC_ID_EAC3:
1729 case AV_CODEC_ID_MPEG1VIDEO:
1730 case AV_CODEC_ID_VC1:
1731 st->need_parsing = AVSTREAM_PARSE_FULL;
1739 static int mov_skip_multiple_stsd(MOVContext *c, AVIOContext *pb,
1740 int codec_tag, int format,
1743 int video_codec_id = ff_codec_get_id(ff_codec_movvideo_tags, format);
1746 (codec_tag != format &&
1747 (c->fc->video_codec_id ? video_codec_id != c->fc->video_codec_id
1748 : codec_tag != MKTAG('j','p','e','g')))) {
1749 /* Multiple fourcc, we skip JPEG. This is not correct, we should
1750 * export it as a separate AVStream but this needs a few changes
1751 * in the MOV demuxer, patch welcome. */
1753 av_log(c->fc, AV_LOG_WARNING, "multiple fourcc not supported\n");
1754 avio_skip(pb, size);
1757 if ( codec_tag == AV_RL32("avc1") ||
1758 codec_tag == AV_RL32("hvc1") ||
1759 codec_tag == AV_RL32("hev1")
1761 av_log(c->fc, AV_LOG_WARNING, "Concatenated H.264 or H.265 might not play correctly.\n");
1766 int ff_mov_read_stsd_entries(MOVContext *c, AVIOContext *pb, int entries)
1769 MOVStreamContext *sc;
1770 int pseudo_stream_id;
1772 if (c->fc->nb_streams < 1)
1774 st = c->fc->streams[c->fc->nb_streams-1];
1777 for (pseudo_stream_id = 0;
1778 pseudo_stream_id < entries && !pb->eof_reached;
1779 pseudo_stream_id++) {
1780 //Parsing Sample description table
1782 int ret, dref_id = 1;
1783 MOVAtom a = { AV_RL32("stsd") };
1784 int64_t start_pos = avio_tell(pb);
1785 int64_t size = avio_rb32(pb); /* size */
1786 uint32_t format = avio_rl32(pb); /* data format */
1789 avio_rb32(pb); /* reserved */
1790 avio_rb16(pb); /* reserved */
1791 dref_id = avio_rb16(pb);
1792 }else if (size <= 7){
1793 av_log(c->fc, AV_LOG_ERROR, "invalid size %"PRId64" in stsd\n", size);
1794 return AVERROR_INVALIDDATA;
1797 if (mov_skip_multiple_stsd(c, pb, st->codec->codec_tag, format,
1798 size - (avio_tell(pb) - start_pos)))
1801 sc->pseudo_stream_id = st->codec->codec_tag ? -1 : pseudo_stream_id;
1802 sc->dref_id= dref_id;
1804 id = mov_codec_id(st, format);
1806 av_dlog(c->fc, "size=%"PRId64" 4CC= %c%c%c%c codec_type=%d\n", size,
1807 (format >> 0) & 0xff, (format >> 8) & 0xff, (format >> 16) & 0xff,
1808 (format >> 24) & 0xff, st->codec->codec_type);
1810 if (st->codec->codec_type==AVMEDIA_TYPE_VIDEO) {
1811 st->codec->codec_id = id;
1812 mov_parse_stsd_video(c, pb, st, sc);
1813 } else if (st->codec->codec_type==AVMEDIA_TYPE_AUDIO) {
1814 st->codec->codec_id = id;
1815 mov_parse_stsd_audio(c, pb, st, sc);
1816 } else if (st->codec->codec_type==AVMEDIA_TYPE_SUBTITLE){
1817 st->codec->codec_id = id;
1818 mov_parse_stsd_subtitle(c, pb, st, sc,
1819 size - (avio_tell(pb) - start_pos));
1821 ret = mov_parse_stsd_data(c, pb, st, sc,
1822 size - (avio_tell(pb) - start_pos));
1826 /* this will read extra atoms at the end (wave, alac, damr, avcC, hvcC, SMI ...) */
1827 a.size = size - (avio_tell(pb) - start_pos);
1829 if ((ret = mov_read_default(c, pb, a)) < 0)
1831 } else if (a.size > 0)
1832 avio_skip(pb, a.size);
1835 if (pb->eof_reached)
1838 return mov_finalize_stsd_codec(c, pb, st, sc);
1841 static int mov_read_stsd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1845 avio_r8(pb); /* version */
1846 avio_rb24(pb); /* flags */
1847 entries = avio_rb32(pb);
1849 return ff_mov_read_stsd_entries(c, pb, entries);
1852 static int mov_read_stsc(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1855 MOVStreamContext *sc;
1856 unsigned int i, entries;
1858 if (c->fc->nb_streams < 1)
1860 st = c->fc->streams[c->fc->nb_streams-1];
1863 avio_r8(pb); /* version */
1864 avio_rb24(pb); /* flags */
1866 entries = avio_rb32(pb);
1868 av_dlog(c->fc, "track[%i].stsc.entries = %i\n", c->fc->nb_streams-1, entries);
1872 if (entries >= UINT_MAX / sizeof(*sc->stsc_data))
1873 return AVERROR_INVALIDDATA;
1874 sc->stsc_data = av_malloc(entries * sizeof(*sc->stsc_data));
1876 return AVERROR(ENOMEM);
1878 for (i = 0; i < entries && !pb->eof_reached; i++) {
1879 sc->stsc_data[i].first = avio_rb32(pb);
1880 sc->stsc_data[i].count = avio_rb32(pb);
1881 sc->stsc_data[i].id = avio_rb32(pb);
1886 if (pb->eof_reached)
1892 static int mov_read_stps(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1895 MOVStreamContext *sc;
1896 unsigned i, entries;
1898 if (c->fc->nb_streams < 1)
1900 st = c->fc->streams[c->fc->nb_streams-1];
1903 avio_rb32(pb); // version + flags
1905 entries = avio_rb32(pb);
1906 if (entries >= UINT_MAX / sizeof(*sc->stps_data))
1907 return AVERROR_INVALIDDATA;
1908 sc->stps_data = av_malloc(entries * sizeof(*sc->stps_data));
1910 return AVERROR(ENOMEM);
1912 for (i = 0; i < entries && !pb->eof_reached; i++) {
1913 sc->stps_data[i] = avio_rb32(pb);
1914 //av_dlog(c->fc, "stps %d\n", sc->stps_data[i]);
1919 if (pb->eof_reached)
1925 static int mov_read_stss(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1928 MOVStreamContext *sc;
1929 unsigned int i, entries;
1931 if (c->fc->nb_streams < 1)
1933 st = c->fc->streams[c->fc->nb_streams-1];
1936 avio_r8(pb); /* version */
1937 avio_rb24(pb); /* flags */
1939 entries = avio_rb32(pb);
1941 av_dlog(c->fc, "keyframe_count = %d\n", entries);
1945 sc->keyframe_absent = 1;
1946 if (!st->need_parsing && st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
1947 st->need_parsing = AVSTREAM_PARSE_HEADERS;
1950 if (entries >= UINT_MAX / sizeof(int))
1951 return AVERROR_INVALIDDATA;
1952 sc->keyframes = av_malloc(entries * sizeof(int));
1954 return AVERROR(ENOMEM);
1956 for (i = 0; i < entries && !pb->eof_reached; i++) {
1957 sc->keyframes[i] = avio_rb32(pb);
1958 //av_dlog(c->fc, "keyframes[]=%d\n", sc->keyframes[i]);
1961 sc->keyframe_count = i;
1963 if (pb->eof_reached)
1969 static int mov_read_stsz(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1972 MOVStreamContext *sc;
1973 unsigned int i, entries, sample_size, field_size, num_bytes;
1977 if (c->fc->nb_streams < 1)
1979 st = c->fc->streams[c->fc->nb_streams-1];
1982 avio_r8(pb); /* version */
1983 avio_rb24(pb); /* flags */
1985 if (atom.type == MKTAG('s','t','s','z')) {
1986 sample_size = avio_rb32(pb);
1987 if (!sc->sample_size) /* do not overwrite value computed in stsd */
1988 sc->sample_size = sample_size;
1989 sc->stsz_sample_size = sample_size;
1993 avio_rb24(pb); /* reserved */
1994 field_size = avio_r8(pb);
1996 entries = avio_rb32(pb);
1998 av_dlog(c->fc, "sample_size = %d sample_count = %d\n", sc->sample_size, entries);
2000 sc->sample_count = entries;
2004 if (field_size != 4 && field_size != 8 && field_size != 16 && field_size != 32) {
2005 av_log(c->fc, AV_LOG_ERROR, "Invalid sample field size %d\n", field_size);
2006 return AVERROR_INVALIDDATA;
2011 if (entries >= UINT_MAX / sizeof(int) || entries >= (UINT_MAX - 4) / field_size)
2012 return AVERROR_INVALIDDATA;
2013 sc->sample_sizes = av_malloc(entries * sizeof(int));
2014 if (!sc->sample_sizes)
2015 return AVERROR(ENOMEM);
2017 num_bytes = (entries*field_size+4)>>3;
2019 buf = av_malloc(num_bytes+FF_INPUT_BUFFER_PADDING_SIZE);
2021 av_freep(&sc->sample_sizes);
2022 return AVERROR(ENOMEM);
2025 if (avio_read(pb, buf, num_bytes) < num_bytes) {
2026 av_freep(&sc->sample_sizes);
2028 return AVERROR_INVALIDDATA;
2031 init_get_bits(&gb, buf, 8*num_bytes);
2033 for (i = 0; i < entries && !pb->eof_reached; i++) {
2034 sc->sample_sizes[i] = get_bits_long(&gb, field_size);
2035 sc->data_size += sc->sample_sizes[i];
2038 sc->sample_count = i;
2040 if (pb->eof_reached)
2047 static int mov_read_stts(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2050 MOVStreamContext *sc;
2051 unsigned int i, entries;
2053 int64_t total_sample_count=0;
2055 if (c->fc->nb_streams < 1)
2057 st = c->fc->streams[c->fc->nb_streams-1];
2060 avio_r8(pb); /* version */
2061 avio_rb24(pb); /* flags */
2062 entries = avio_rb32(pb);
2064 av_dlog(c->fc, "track[%i].stts.entries = %i\n",
2065 c->fc->nb_streams-1, entries);
2067 if (entries >= UINT_MAX / sizeof(*sc->stts_data))
2070 av_free(sc->stts_data);
2071 sc->stts_data = av_malloc(entries * sizeof(*sc->stts_data));
2073 return AVERROR(ENOMEM);
2075 for (i = 0; i < entries && !pb->eof_reached; i++) {
2076 int sample_duration;
2079 sample_count=avio_rb32(pb);
2080 sample_duration = avio_rb32(pb);
2082 /* sample_duration < 0 is invalid based on the spec */
2083 if (sample_duration < 0) {
2084 av_log(c->fc, AV_LOG_ERROR, "Invalid SampleDelta %d in STTS, at %d st:%d\n",
2085 sample_duration, i, c->fc->nb_streams-1);
2086 sample_duration = 1;
2088 if (sample_count < 0) {
2089 av_log(c->fc, AV_LOG_ERROR, "Invalid sample_count=%d\n", sample_count);
2090 return AVERROR_INVALIDDATA;
2092 sc->stts_data[i].count= sample_count;
2093 sc->stts_data[i].duration= sample_duration;
2095 av_dlog(c->fc, "sample_count=%d, sample_duration=%d\n",
2096 sample_count, sample_duration);
2100 && sample_count == 1
2101 && total_sample_count > 100
2102 && sample_duration/10 > duration / total_sample_count)
2103 sample_duration = duration / total_sample_count;
2104 duration+=(int64_t)sample_duration*sample_count;
2105 total_sample_count+=sample_count;
2110 sc->duration_for_fps += duration;
2111 sc->nb_frames_for_fps += total_sample_count;
2113 if (pb->eof_reached)
2116 st->nb_frames= total_sample_count;
2118 st->duration= duration;
2119 sc->track_end = duration;
2123 static void mov_update_dts_shift(MOVStreamContext *sc, int duration)
2126 sc->dts_shift = FFMAX(sc->dts_shift, -duration);
2130 static int mov_read_ctts(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2133 MOVStreamContext *sc;
2134 unsigned int i, entries;
2136 if (c->fc->nb_streams < 1)
2138 st = c->fc->streams[c->fc->nb_streams-1];
2141 avio_r8(pb); /* version */
2142 avio_rb24(pb); /* flags */
2143 entries = avio_rb32(pb);
2145 av_dlog(c->fc, "track[%i].ctts.entries = %i\n", c->fc->nb_streams-1, entries);
2149 if (entries >= UINT_MAX / sizeof(*sc->ctts_data))
2150 return AVERROR_INVALIDDATA;
2151 sc->ctts_data = av_malloc(entries * sizeof(*sc->ctts_data));
2153 return AVERROR(ENOMEM);
2155 for (i = 0; i < entries && !pb->eof_reached; i++) {
2156 int count =avio_rb32(pb);
2157 int duration =avio_rb32(pb);
2159 sc->ctts_data[i].count = count;
2160 sc->ctts_data[i].duration= duration;
2162 av_dlog(c->fc, "count=%d, duration=%d\n",
2165 if (FFABS(duration) > (1<<28) && i+2<entries) {
2166 av_log(c->fc, AV_LOG_WARNING, "CTTS invalid\n");
2167 av_freep(&sc->ctts_data);
2173 mov_update_dts_shift(sc, duration);
2178 if (pb->eof_reached)
2181 av_dlog(c->fc, "dts shift %d\n", sc->dts_shift);
2186 static int mov_read_sbgp(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2189 MOVStreamContext *sc;
2190 unsigned int i, entries;
2192 uint32_t grouping_type;
2194 if (c->fc->nb_streams < 1)
2196 st = c->fc->streams[c->fc->nb_streams-1];
2199 version = avio_r8(pb); /* version */
2200 avio_rb24(pb); /* flags */
2201 grouping_type = avio_rl32(pb);
2202 if (grouping_type != MKTAG( 'r','a','p',' '))
2203 return 0; /* only support 'rap ' grouping */
2205 avio_rb32(pb); /* grouping_type_parameter */
2207 entries = avio_rb32(pb);
2210 if (entries >= UINT_MAX / sizeof(*sc->rap_group))
2211 return AVERROR_INVALIDDATA;
2212 sc->rap_group = av_malloc(entries * sizeof(*sc->rap_group));
2214 return AVERROR(ENOMEM);
2216 for (i = 0; i < entries && !pb->eof_reached; i++) {
2217 sc->rap_group[i].count = avio_rb32(pb); /* sample_count */
2218 sc->rap_group[i].index = avio_rb32(pb); /* group_description_index */
2221 sc->rap_group_count = i;
2223 return pb->eof_reached ? AVERROR_EOF : 0;
2226 static void mov_build_index(MOVContext *mov, AVStream *st)
2228 MOVStreamContext *sc = st->priv_data;
2229 int64_t current_offset;
2230 int64_t current_dts = 0;
2231 unsigned int stts_index = 0;
2232 unsigned int stsc_index = 0;
2233 unsigned int stss_index = 0;
2234 unsigned int stps_index = 0;
2236 uint64_t stream_size = 0;
2238 /* adjust first dts according to edit list */
2239 if ((sc->empty_duration || sc->start_time) && mov->time_scale > 0) {
2240 if (sc->empty_duration)
2241 sc->empty_duration = av_rescale(sc->empty_duration, sc->time_scale, mov->time_scale);
2242 sc->time_offset = sc->start_time - sc->empty_duration;
2243 current_dts = -sc->time_offset;
2244 if (sc->ctts_count>0 && sc->stts_count>0 &&
2245 sc->ctts_data[0].duration / FFMAX(sc->stts_data[0].duration, 1) > 16) {
2246 /* more than 16 frames delay, dts are likely wrong
2247 this happens with files created by iMovie */
2249 st->codec->has_b_frames = 1;
2253 /* only use old uncompressed audio chunk demuxing when stts specifies it */
2254 if (!(st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
2255 sc->stts_count == 1 && sc->stts_data[0].duration == 1)) {
2256 unsigned int current_sample = 0;
2257 unsigned int stts_sample = 0;
2258 unsigned int sample_size;
2259 unsigned int distance = 0;
2260 unsigned int rap_group_index = 0;
2261 unsigned int rap_group_sample = 0;
2262 int rap_group_present = sc->rap_group_count && sc->rap_group;
2263 int key_off = (sc->keyframe_count && sc->keyframes[0] > 0) || (sc->stps_count && sc->stps_data[0] > 0);
2265 current_dts -= sc->dts_shift;
2267 if (!sc->sample_count || st->nb_index_entries)
2269 if (sc->sample_count >= UINT_MAX / sizeof(*st->index_entries) - st->nb_index_entries)
2271 if (av_reallocp_array(&st->index_entries,
2272 st->nb_index_entries + sc->sample_count,
2273 sizeof(*st->index_entries)) < 0) {
2274 st->nb_index_entries = 0;
2277 st->index_entries_allocated_size = (st->nb_index_entries + sc->sample_count) * sizeof(*st->index_entries);
2279 for (i = 0; i < sc->chunk_count; i++) {
2280 int64_t next_offset = i+1 < sc->chunk_count ? sc->chunk_offsets[i+1] : INT64_MAX;
2281 current_offset = sc->chunk_offsets[i];
2282 while (stsc_index + 1 < sc->stsc_count &&
2283 i + 1 == sc->stsc_data[stsc_index + 1].first)
2286 if (next_offset > current_offset && sc->sample_size>0 && sc->sample_size < sc->stsz_sample_size &&
2287 sc->stsc_data[stsc_index].count * (int64_t)sc->stsz_sample_size > next_offset - current_offset) {
2288 av_log(mov->fc, AV_LOG_WARNING, "STSZ sample size %d invalid (too large), ignoring\n", sc->stsz_sample_size);
2289 sc->stsz_sample_size = sc->sample_size;
2291 if (sc->stsz_sample_size>0 && sc->stsz_sample_size < sc->sample_size) {
2292 av_log(mov->fc, AV_LOG_WARNING, "STSZ sample size %d invalid (too small), ignoring\n", sc->stsz_sample_size);
2293 sc->stsz_sample_size = sc->sample_size;
2296 for (j = 0; j < sc->stsc_data[stsc_index].count; j++) {
2298 if (current_sample >= sc->sample_count) {
2299 av_log(mov->fc, AV_LOG_ERROR, "wrong sample count\n");
2303 if (!sc->keyframe_absent && (!sc->keyframe_count || current_sample+key_off == sc->keyframes[stss_index])) {
2305 if (stss_index + 1 < sc->keyframe_count)
2307 } else if (sc->stps_count && current_sample+key_off == sc->stps_data[stps_index]) {
2309 if (stps_index + 1 < sc->stps_count)
2312 if (rap_group_present && rap_group_index < sc->rap_group_count) {
2313 if (sc->rap_group[rap_group_index].index > 0)
2315 if (++rap_group_sample == sc->rap_group[rap_group_index].count) {
2316 rap_group_sample = 0;
2320 if (sc->keyframe_absent
2322 && !rap_group_present
2323 && (st->codec->codec_type == AVMEDIA_TYPE_AUDIO || (i==0 && j==0)))
2327 sample_size = sc->stsz_sample_size > 0 ? sc->stsz_sample_size : sc->sample_sizes[current_sample];
2328 if (sc->pseudo_stream_id == -1 ||
2329 sc->stsc_data[stsc_index].id - 1 == sc->pseudo_stream_id) {
2330 AVIndexEntry *e = &st->index_entries[st->nb_index_entries++];
2331 e->pos = current_offset;
2332 e->timestamp = current_dts;
2333 e->size = sample_size;
2334 e->min_distance = distance;
2335 e->flags = keyframe ? AVINDEX_KEYFRAME : 0;
2336 av_dlog(mov->fc, "AVIndex stream %d, sample %d, offset %"PRIx64", dts %"PRId64", "
2337 "size %d, distance %d, keyframe %d\n", st->index, current_sample,
2338 current_offset, current_dts, sample_size, distance, keyframe);
2339 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && st->nb_index_entries < 100)
2340 ff_rfps_add_frame(mov->fc, st, current_dts);
2343 current_offset += sample_size;
2344 stream_size += sample_size;
2345 current_dts += sc->stts_data[stts_index].duration;
2349 if (stts_index + 1 < sc->stts_count && stts_sample == sc->stts_data[stts_index].count) {
2355 if (st->duration > 0)
2356 st->codec->bit_rate = stream_size*8*sc->time_scale/st->duration;
2358 unsigned chunk_samples, total = 0;
2360 // compute total chunk count
2361 for (i = 0; i < sc->stsc_count; i++) {
2362 unsigned count, chunk_count;
2364 chunk_samples = sc->stsc_data[i].count;
2365 if (i != sc->stsc_count - 1 &&
2366 sc->samples_per_frame && chunk_samples % sc->samples_per_frame) {
2367 av_log(mov->fc, AV_LOG_ERROR, "error unaligned chunk\n");
2371 if (sc->samples_per_frame >= 160) { // gsm
2372 count = chunk_samples / sc->samples_per_frame;
2373 } else if (sc->samples_per_frame > 1) {
2374 unsigned samples = (1024/sc->samples_per_frame)*sc->samples_per_frame;
2375 count = (chunk_samples+samples-1) / samples;
2377 count = (chunk_samples+1023) / 1024;
2380 if (i < sc->stsc_count - 1)
2381 chunk_count = sc->stsc_data[i+1].first - sc->stsc_data[i].first;
2383 chunk_count = sc->chunk_count - (sc->stsc_data[i].first - 1);
2384 total += chunk_count * count;
2387 av_dlog(mov->fc, "chunk count %d\n", total);
2388 if (total >= UINT_MAX / sizeof(*st->index_entries) - st->nb_index_entries)
2390 if (av_reallocp_array(&st->index_entries,
2391 st->nb_index_entries + total,
2392 sizeof(*st->index_entries)) < 0) {
2393 st->nb_index_entries = 0;
2396 st->index_entries_allocated_size = (st->nb_index_entries + total) * sizeof(*st->index_entries);
2399 for (i = 0; i < sc->chunk_count; i++) {
2400 current_offset = sc->chunk_offsets[i];
2401 if (stsc_index + 1 < sc->stsc_count &&
2402 i + 1 == sc->stsc_data[stsc_index + 1].first)
2404 chunk_samples = sc->stsc_data[stsc_index].count;
2406 while (chunk_samples > 0) {
2408 unsigned size, samples;
2410 if (sc->samples_per_frame >= 160) { // gsm
2411 samples = sc->samples_per_frame;
2412 size = sc->bytes_per_frame;
2414 if (sc->samples_per_frame > 1) {
2415 samples = FFMIN((1024 / sc->samples_per_frame)*
2416 sc->samples_per_frame, chunk_samples);
2417 size = (samples / sc->samples_per_frame) * sc->bytes_per_frame;
2419 samples = FFMIN(1024, chunk_samples);
2420 size = samples * sc->sample_size;
2424 if (st->nb_index_entries >= total) {
2425 av_log(mov->fc, AV_LOG_ERROR, "wrong chunk count %d\n", total);
2428 e = &st->index_entries[st->nb_index_entries++];
2429 e->pos = current_offset;
2430 e->timestamp = current_dts;
2432 e->min_distance = 0;
2433 e->flags = AVINDEX_KEYFRAME;
2434 av_dlog(mov->fc, "AVIndex stream %d, chunk %d, offset %"PRIx64", dts %"PRId64", "
2435 "size %d, duration %d\n", st->index, i, current_offset, current_dts,
2438 current_offset += size;
2439 current_dts += samples;
2440 chunk_samples -= samples;
2446 static int mov_open_dref(AVIOContext **pb, const char *src, MOVDref *ref,
2447 AVIOInterruptCB *int_cb, int use_absolute_path, AVFormatContext *fc)
2449 /* try relative path, we do not try the absolute because it can leak information about our
2450 system to an attacker */
2451 if (ref->nlvl_to > 0 && ref->nlvl_from > 0) {
2452 char filename[1024];
2453 const char *src_path;
2456 /* find a source dir */
2457 src_path = strrchr(src, '/');
2463 /* find a next level down to target */
2464 for (i = 0, l = strlen(ref->path) - 1; l >= 0; l--)
2465 if (ref->path[l] == '/') {
2466 if (i == ref->nlvl_to - 1)
2472 /* compose filename if next level down to target was found */
2473 if (i == ref->nlvl_to - 1 && src_path - src < sizeof(filename)) {
2474 memcpy(filename, src, src_path - src);
2475 filename[src_path - src] = 0;
2477 for (i = 1; i < ref->nlvl_from; i++)
2478 av_strlcat(filename, "../", 1024);
2480 av_strlcat(filename, ref->path + l + 1, 1024);
2482 if (!avio_open2(pb, filename, AVIO_FLAG_READ, int_cb, NULL))
2485 } else if (use_absolute_path) {
2486 av_log(fc, AV_LOG_WARNING, "Using absolute path on user request, "
2487 "this is a possible security issue\n");
2488 if (!avio_open2(pb, ref->path, AVIO_FLAG_READ, int_cb, NULL))
2492 return AVERROR(ENOENT);
2495 static void fix_timescale(MOVContext *c, MOVStreamContext *sc)
2497 if (sc->time_scale <= 0) {
2498 av_log(c->fc, AV_LOG_WARNING, "stream %d, timescale not set\n", sc->ffindex);
2499 sc->time_scale = c->time_scale;
2500 if (sc->time_scale <= 0)
2505 static int mov_read_trak(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2508 MOVStreamContext *sc;
2511 st = avformat_new_stream(c->fc, NULL);
2512 if (!st) return AVERROR(ENOMEM);
2513 st->id = c->fc->nb_streams;
2514 sc = av_mallocz(sizeof(MOVStreamContext));
2515 if (!sc) return AVERROR(ENOMEM);
2518 st->codec->codec_type = AVMEDIA_TYPE_DATA;
2519 sc->ffindex = st->index;
2521 if ((ret = mov_read_default(c, pb, atom)) < 0)
2525 if (sc->chunk_count && (!sc->stts_count || !sc->stsc_count ||
2526 (!sc->sample_size && !sc->sample_count))) {
2527 av_log(c->fc, AV_LOG_ERROR, "stream %d, missing mandatory atoms, broken header\n",
2532 fix_timescale(c, sc);
2534 avpriv_set_pts_info(st, 64, 1, sc->time_scale);
2536 mov_build_index(c, st);
2538 if (sc->dref_id-1 < sc->drefs_count && sc->drefs[sc->dref_id-1].path) {
2539 MOVDref *dref = &sc->drefs[sc->dref_id - 1];
2540 if (mov_open_dref(&sc->pb, c->fc->filename, dref, &c->fc->interrupt_callback,
2541 c->use_absolute_path, c->fc) < 0)
2542 av_log(c->fc, AV_LOG_ERROR,
2543 "stream %d, error opening alias: path='%s', dir='%s', "
2544 "filename='%s', volume='%s', nlvl_from=%d, nlvl_to=%d\n",
2545 st->index, dref->path, dref->dir, dref->filename,
2546 dref->volume, dref->nlvl_from, dref->nlvl_to);
2549 sc->pb_is_copied = 1;
2552 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
2553 if (!st->sample_aspect_ratio.num &&
2554 (st->codec->width != sc->width || st->codec->height != sc->height)) {
2555 st->sample_aspect_ratio = av_d2q(((double)st->codec->height * sc->width) /
2556 ((double)st->codec->width * sc->height), INT_MAX);
2559 #if FF_API_R_FRAME_RATE
2560 if (sc->stts_count == 1 || (sc->stts_count == 2 && sc->stts_data[1].count == 1))
2561 av_reduce(&st->r_frame_rate.num, &st->r_frame_rate.den,
2562 sc->time_scale, sc->stts_data[0].duration, INT_MAX);
2566 // done for ai5q, ai52, ai55, ai1q, ai12 and ai15.
2567 if (!st->codec->extradata_size && st->codec->codec_id == AV_CODEC_ID_H264 &&
2568 TAG_IS_AVCI(st->codec->codec_tag)) {
2569 ret = ff_generate_avci_extradata(st);
2574 switch (st->codec->codec_id) {
2575 #if CONFIG_H261_DECODER
2576 case AV_CODEC_ID_H261:
2578 #if CONFIG_H263_DECODER
2579 case AV_CODEC_ID_H263:
2581 #if CONFIG_MPEG4_DECODER
2582 case AV_CODEC_ID_MPEG4:
2584 st->codec->width = 0; /* let decoder init width/height */
2585 st->codec->height= 0;
2589 /* Do not need those anymore. */
2590 av_freep(&sc->chunk_offsets);
2591 av_freep(&sc->stsc_data);
2592 av_freep(&sc->sample_sizes);
2593 av_freep(&sc->keyframes);
2594 av_freep(&sc->stts_data);
2595 av_freep(&sc->stps_data);
2596 av_freep(&sc->rap_group);
2601 static int mov_read_ilst(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2604 c->itunes_metadata = 1;
2605 ret = mov_read_default(c, pb, atom);
2606 c->itunes_metadata = 0;
2610 static int mov_read_custom_2plus(MOVContext *c, AVIOContext *pb, int size)
2612 int64_t end = avio_tell(pb) + size;
2613 uint8_t *key = NULL, *val = NULL;
2616 MOVStreamContext *sc;
2618 if (c->fc->nb_streams < 1)
2620 st = c->fc->streams[c->fc->nb_streams-1];
2623 for (i = 0; i < 2; i++) {
2627 if (end - avio_tell(pb) <= 12)
2630 len = avio_rb32(pb);
2631 tag = avio_rl32(pb);
2632 avio_skip(pb, 4); // flags
2634 if (len < 12 || len - 12 > end - avio_tell(pb))
2638 if (tag == MKTAG('n', 'a', 'm', 'e'))
2640 else if (tag == MKTAG('d', 'a', 't', 'a') && len > 4) {
2647 *p = av_malloc(len + 1);
2650 avio_read(pb, *p, len);
2655 if (strcmp(key, "iTunSMPB") == 0) {
2656 int priming, remainder, samples;
2657 if(sscanf(val, "%*X %X %X %X", &priming, &remainder, &samples) == 3){
2658 if(priming>0 && priming<16384)
2659 sc->start_pad = priming;
2662 if (strcmp(key, "cdec") != 0) {
2663 av_dict_set(&c->fc->metadata, key, val,
2664 AV_DICT_DONT_STRDUP_KEY | AV_DICT_DONT_STRDUP_VAL);
2669 avio_seek(pb, end, SEEK_SET);
2675 static int mov_read_custom(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2677 int64_t end = avio_tell(pb) + atom.size;
2683 len = avio_rb32(pb);
2684 tag = avio_rl32(pb);
2686 if (len > atom.size)
2689 if (tag == MKTAG('m', 'e', 'a', 'n') && len > 12) {
2690 uint8_t domain[128];
2693 avio_skip(pb, 4); // flags
2696 domain_len = avio_get_str(pb, len, domain, sizeof(domain));
2697 avio_skip(pb, len - domain_len);
2698 return mov_read_custom_2plus(c, pb, end - avio_tell(pb));
2702 av_log(c->fc, AV_LOG_VERBOSE,
2703 "Unhandled or malformed custom metadata of size %"PRId64"\n", atom.size);
2707 static int mov_read_meta(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2709 while (atom.size > 8) {
2710 uint32_t tag = avio_rl32(pb);
2712 if (tag == MKTAG('h','d','l','r')) {
2713 avio_seek(pb, -8, SEEK_CUR);
2715 return mov_read_default(c, pb, atom);
2721 static int mov_read_tkhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2726 int64_t disp_transform[2];
2727 int display_matrix[3][3];
2729 MOVStreamContext *sc;
2733 if (c->fc->nb_streams < 1)
2735 st = c->fc->streams[c->fc->nb_streams-1];
2738 version = avio_r8(pb);
2739 flags = avio_rb24(pb);
2740 st->disposition |= (flags & MOV_TKHD_FLAG_ENABLED) ? AV_DISPOSITION_DEFAULT : 0;
2746 avio_rb32(pb); /* creation time */
2747 avio_rb32(pb); /* modification time */
2749 st->id = (int)avio_rb32(pb); /* track id (NOT 0 !)*/
2750 avio_rb32(pb); /* reserved */
2752 /* highlevel (considering edits) duration in movie timebase */
2753 (version == 1) ? avio_rb64(pb) : avio_rb32(pb);
2754 avio_rb32(pb); /* reserved */
2755 avio_rb32(pb); /* reserved */
2757 avio_rb16(pb); /* layer */
2758 avio_rb16(pb); /* alternate group */
2759 avio_rb16(pb); /* volume */
2760 avio_rb16(pb); /* reserved */
2762 //read in the display matrix (outlined in ISO 14496-12, Section 6.2.2)
2763 // they're kept in fixed point format through all calculations
2764 // save u,v,z to store the whole matrix in the AV_PKT_DATA_DISPLAYMATRIX
2765 // side data, but the scale factor is not needed to calculate aspect ratio
2766 for (i = 0; i < 3; i++) {
2767 display_matrix[i][0] = avio_rb32(pb); // 16.16 fixed point
2768 display_matrix[i][1] = avio_rb32(pb); // 16.16 fixed point
2769 display_matrix[i][2] = avio_rb32(pb); // 2.30 fixed point
2772 width = avio_rb32(pb); // 16.16 fixed point track width
2773 height = avio_rb32(pb); // 16.16 fixed point track height
2774 sc->width = width >> 16;
2775 sc->height = height >> 16;
2777 // save the matrix and add rotate metadata when it is not the default
2779 if (display_matrix[0][0] != (1 << 16) ||
2780 display_matrix[1][1] != (1 << 16) ||
2781 display_matrix[2][2] != (1 << 30) ||
2782 display_matrix[0][1] || display_matrix[0][2] ||
2783 display_matrix[1][0] || display_matrix[1][2] ||
2784 display_matrix[2][0] || display_matrix[2][1]) {
2788 av_freep(&sc->display_matrix);
2789 sc->display_matrix = av_malloc(sizeof(int32_t) * 9);
2790 if (!sc->display_matrix)
2791 return AVERROR(ENOMEM);
2793 for (i = 0; i < 3; i++)
2794 for (j = 0; j < 3; j++)
2795 sc->display_matrix[i * 3 + j] = display_matrix[j][i];
2797 rotate = av_display_rotation_get(sc->display_matrix);
2798 if (!isnan(rotate)) {
2799 char rotate_buf[64];
2801 if (rotate < 0) // for backward compatibility
2803 snprintf(rotate_buf, sizeof(rotate_buf), "%g", rotate);
2804 av_dict_set(&st->metadata, "rotate", rotate_buf, 0);
2808 // transform the display width/height according to the matrix
2809 // skip this if the display matrix is the default identity matrix
2810 // or if it is rotating the picture, ex iPhone 3GS
2811 // to keep the same scale, use [width height 1<<16]
2812 if (width && height &&
2813 ((display_matrix[0][0] != 65536 ||
2814 display_matrix[1][1] != 65536) &&
2815 !display_matrix[0][1] &&
2816 !display_matrix[1][0] &&
2817 !display_matrix[2][0] && !display_matrix[2][1])) {
2818 for (i = 0; i < 2; i++)
2820 (int64_t) width * display_matrix[0][i] +
2821 (int64_t) height * display_matrix[1][i] +
2822 ((int64_t) display_matrix[2][i] << 16);
2824 //sample aspect ratio is new width/height divided by old width/height
2825 st->sample_aspect_ratio = av_d2q(
2826 ((double) disp_transform[0] * height) /
2827 ((double) disp_transform[1] * width), INT_MAX);
2832 static int mov_read_tfhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2834 MOVFragment *frag = &c->fragment;
2835 MOVTrackExt *trex = NULL;
2836 MOVFragmentIndex* index = NULL;
2837 int flags, track_id, i;
2839 avio_r8(pb); /* version */
2840 flags = avio_rb24(pb);
2842 track_id = avio_rb32(pb);
2844 return AVERROR_INVALIDDATA;
2845 frag->track_id = track_id;
2846 for (i = 0; i < c->trex_count; i++)
2847 if (c->trex_data[i].track_id == frag->track_id) {
2848 trex = &c->trex_data[i];
2852 av_log(c->fc, AV_LOG_ERROR, "could not find corresponding trex\n");
2853 return AVERROR_INVALIDDATA;
2855 for (i = 0; i < c->fragment_index_count; i++) {
2856 MOVFragmentIndex* candidate = c->fragment_index_data[i];
2857 if (candidate->track_id == frag->track_id) {
2858 av_log(c->fc, AV_LOG_DEBUG,
2859 "found fragment index for track %u\n", frag->track_id);
2865 frag->base_data_offset = flags & MOV_TFHD_BASE_DATA_OFFSET ?
2866 avio_rb64(pb) : flags & MOV_TFHD_DEFAULT_BASE_IS_MOOF ?
2867 frag->moof_offset : frag->implicit_offset;
2868 frag->stsd_id = flags & MOV_TFHD_STSD_ID ? avio_rb32(pb) : trex->stsd_id;
2870 frag->duration = flags & MOV_TFHD_DEFAULT_DURATION ?
2871 avio_rb32(pb) : trex->duration;
2872 frag->size = flags & MOV_TFHD_DEFAULT_SIZE ?
2873 avio_rb32(pb) : trex->size;
2874 frag->flags = flags & MOV_TFHD_DEFAULT_FLAGS ?
2875 avio_rb32(pb) : trex->flags;
2876 frag->time = AV_NOPTS_VALUE;
2879 for (i = index->current_item; i < index->item_count; i++) {
2880 if (frag->implicit_offset == index->items[i].moof_offset) {
2881 av_log(c->fc, AV_LOG_DEBUG, "found fragment index entry "
2882 "for track %u and moof_offset %"PRId64"\n",
2883 frag->track_id, index->items[i].moof_offset);
2884 frag->time = index->items[i].time;
2885 index->current_item = i + 1;
2890 av_log(c->fc, AV_LOG_WARNING, "track %u has a fragment index "
2891 "but it doesn't have an (in-order) entry for moof_offset "
2892 "%"PRId64"\n", frag->track_id, frag->implicit_offset);
2895 av_dlog(c->fc, "frag flags 0x%x\n", frag->flags);
2899 static int mov_read_chap(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2901 c->chapter_track = avio_rb32(pb);
2905 static int mov_read_trex(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2910 if ((uint64_t)c->trex_count+1 >= UINT_MAX / sizeof(*c->trex_data))
2911 return AVERROR_INVALIDDATA;
2912 if ((err = av_reallocp_array(&c->trex_data, c->trex_count + 1,
2913 sizeof(*c->trex_data))) < 0) {
2918 c->fc->duration = AV_NOPTS_VALUE; // the duration from mvhd is not representing the whole file when fragments are used.
2920 trex = &c->trex_data[c->trex_count++];
2921 avio_r8(pb); /* version */
2922 avio_rb24(pb); /* flags */
2923 trex->track_id = avio_rb32(pb);
2924 trex->stsd_id = avio_rb32(pb);
2925 trex->duration = avio_rb32(pb);
2926 trex->size = avio_rb32(pb);
2927 trex->flags = avio_rb32(pb);
2931 static int mov_read_tfdt(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2933 MOVFragment *frag = &c->fragment;
2934 AVStream *st = NULL;
2935 MOVStreamContext *sc;
2938 for (i = 0; i < c->fc->nb_streams; i++) {
2939 if (c->fc->streams[i]->id == frag->track_id) {
2940 st = c->fc->streams[i];
2945 av_log(c->fc, AV_LOG_ERROR, "could not find corresponding track id %d\n", frag->track_id);
2946 return AVERROR_INVALIDDATA;
2949 if (sc->pseudo_stream_id + 1 != frag->stsd_id)
2951 version = avio_r8(pb);
2952 avio_rb24(pb); /* flags */
2954 sc->track_end = avio_rb64(pb);
2956 sc->track_end = avio_rb32(pb);
2961 static int mov_read_trun(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2963 MOVFragment *frag = &c->fragment;
2964 AVStream *st = NULL;
2965 MOVStreamContext *sc;
2969 int data_offset = 0;
2970 unsigned entries, first_sample_flags = frag->flags;
2971 int flags, distance, i, found_keyframe = 0, err;
2973 for (i = 0; i < c->fc->nb_streams; i++) {
2974 if (c->fc->streams[i]->id == frag->track_id) {
2975 st = c->fc->streams[i];
2980 av_log(c->fc, AV_LOG_ERROR, "could not find corresponding track id %d\n", frag->track_id);
2981 return AVERROR_INVALIDDATA;
2984 if (sc->pseudo_stream_id+1 != frag->stsd_id && sc->pseudo_stream_id != -1)
2986 avio_r8(pb); /* version */
2987 flags = avio_rb24(pb);
2988 entries = avio_rb32(pb);
2989 av_dlog(c->fc, "flags 0x%x entries %d\n", flags, entries);
2991 /* Always assume the presence of composition time offsets.
2992 * Without this assumption, for instance, we cannot deal with a track in fragmented movies that meet the following.
2993 * 1) in the initial movie, there are no samples.
2994 * 2) in the first movie fragment, there is only one sample without composition time offset.
2995 * 3) in the subsequent movie fragments, there are samples with composition time offset. */
2996 if (!sc->ctts_count && sc->sample_count)
2998 /* Complement ctts table if moov atom doesn't have ctts atom. */
2999 ctts_data = av_realloc(NULL, sizeof(*sc->ctts_data));
3001 return AVERROR(ENOMEM);
3002 sc->ctts_data = ctts_data;
3003 sc->ctts_data[sc->ctts_count].count = sc->sample_count;
3004 sc->ctts_data[sc->ctts_count].duration = 0;
3007 if ((uint64_t)entries+sc->ctts_count >= UINT_MAX/sizeof(*sc->ctts_data))
3008 return AVERROR_INVALIDDATA;
3009 if ((err = av_reallocp_array(&sc->ctts_data, entries + sc->ctts_count,
3010 sizeof(*sc->ctts_data))) < 0) {
3014 if (flags & MOV_TRUN_DATA_OFFSET) data_offset = avio_rb32(pb);
3015 if (flags & MOV_TRUN_FIRST_SAMPLE_FLAGS) first_sample_flags = avio_rb32(pb);
3016 dts = sc->track_end - sc->time_offset;
3017 offset = frag->base_data_offset + data_offset;
3019 av_dlog(c->fc, "first sample flags 0x%x\n", first_sample_flags);
3020 for (i = 0; i < entries && !pb->eof_reached; i++) {
3021 unsigned sample_size = frag->size;
3022 int sample_flags = i ? frag->flags : first_sample_flags;
3023 unsigned sample_duration = frag->duration;
3026 if (flags & MOV_TRUN_SAMPLE_DURATION) sample_duration = avio_rb32(pb);
3027 if (flags & MOV_TRUN_SAMPLE_SIZE) sample_size = avio_rb32(pb);
3028 if (flags & MOV_TRUN_SAMPLE_FLAGS) sample_flags = avio_rb32(pb);
3029 sc->ctts_data[sc->ctts_count].count = 1;
3030 sc->ctts_data[sc->ctts_count].duration = (flags & MOV_TRUN_SAMPLE_CTS) ?
3032 mov_update_dts_shift(sc, sc->ctts_data[sc->ctts_count].duration);
3033 if (frag->time != AV_NOPTS_VALUE) {
3034 if (c->use_mfra_for == FF_MOV_FLAG_MFRA_PTS) {
3035 int64_t pts = frag->time;
3036 av_log(c->fc, AV_LOG_DEBUG, "found frag time %"PRId64
3037 " sc->dts_shift %d ctts.duration %d"
3038 " sc->time_offset %"PRId64" flags & MOV_TRUN_SAMPLE_CTS %d\n", pts,
3039 sc->dts_shift, sc->ctts_data[sc->ctts_count].duration,
3040 sc->time_offset, flags & MOV_TRUN_SAMPLE_CTS);
3041 dts = pts - sc->dts_shift;
3042 if (flags & MOV_TRUN_SAMPLE_CTS) {
3043 dts -= sc->ctts_data[sc->ctts_count].duration;
3045 dts -= sc->time_offset;
3047 av_log(c->fc, AV_LOG_DEBUG, "calculated into dts %"PRId64"\n", dts);
3050 av_log(c->fc, AV_LOG_DEBUG, "found frag time %"PRId64
3051 ", using it for dts\n", dts);
3053 frag->time = AV_NOPTS_VALUE;
3056 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
3058 else if (!found_keyframe)
3059 keyframe = found_keyframe =
3060 !(sample_flags & (MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC |
3061 MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES));
3064 av_add_index_entry(st, offset, dts, sample_size, distance,
3065 keyframe ? AVINDEX_KEYFRAME : 0);
3066 av_dlog(c->fc, "AVIndex stream %d, sample %d, offset %"PRIx64", dts %"PRId64", "
3067 "size %d, distance %d, keyframe %d\n", st->index, sc->sample_count+i,
3068 offset, dts, sample_size, distance, keyframe);
3070 dts += sample_duration;
3071 offset += sample_size;
3072 sc->data_size += sample_size;
3073 sc->duration_for_fps += sample_duration;
3074 sc->nb_frames_for_fps ++;
3077 if (pb->eof_reached)
3080 frag->implicit_offset = offset;
3081 st->duration = sc->track_end = dts + sc->time_offset;
3085 /* this atom should be null (from specs), but some buggy files put the 'moov' atom inside it... */
3086 /* like the files created with Adobe Premiere 5.0, for samples see */
3087 /* http://graphics.tudelft.nl/~wouter/publications/soundtests/ */
3088 static int mov_read_wide(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3093 return 0; /* continue */
3094 if (avio_rb32(pb) != 0) { /* 0 sized mdat atom... use the 'wide' atom size */
3095 avio_skip(pb, atom.size - 4);
3098 atom.type = avio_rl32(pb);
3100 if (atom.type != MKTAG('m','d','a','t')) {
3101 avio_skip(pb, atom.size);
3104 err = mov_read_mdat(c, pb, atom);
3108 static int mov_read_cmov(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3113 uint8_t *moov_data; /* uncompressed data */
3114 long cmov_len, moov_len;
3117 avio_rb32(pb); /* dcom atom */
3118 if (avio_rl32(pb) != MKTAG('d','c','o','m'))
3119 return AVERROR_INVALIDDATA;
3120 if (avio_rl32(pb) != MKTAG('z','l','i','b')) {
3121 av_log(c->fc, AV_LOG_ERROR, "unknown compression for cmov atom !\n");
3122 return AVERROR_INVALIDDATA;
3124 avio_rb32(pb); /* cmvd atom */
3125 if (avio_rl32(pb) != MKTAG('c','m','v','d'))
3126 return AVERROR_INVALIDDATA;
3127 moov_len = avio_rb32(pb); /* uncompressed size */
3128 cmov_len = atom.size - 6 * 4;
3130 cmov_data = av_malloc(cmov_len);
3132 return AVERROR(ENOMEM);
3133 moov_data = av_malloc(moov_len);
3136 return AVERROR(ENOMEM);
3138 avio_read(pb, cmov_data, cmov_len);
3139 if (uncompress (moov_data, (uLongf *) &moov_len, (const Bytef *)cmov_data, cmov_len) != Z_OK)
3140 goto free_and_return;
3141 if (ffio_init_context(&ctx, moov_data, moov_len, 0, NULL, NULL, NULL, NULL) != 0)
3142 goto free_and_return;
3143 atom.type = MKTAG('m','o','o','v');
3144 atom.size = moov_len;
3145 ret = mov_read_default(c, &ctx, atom);
3151 av_log(c->fc, AV_LOG_ERROR, "this file requires zlib support compiled in\n");
3152 return AVERROR(ENOSYS);
3156 /* edit list atom */
3157 static int mov_read_elst(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3159 MOVStreamContext *sc;
3160 int i, edit_count, version, edit_start_index = 0;
3161 int unsupported = 0;
3163 if (c->fc->nb_streams < 1 || c->ignore_editlist)
3165 sc = c->fc->streams[c->fc->nb_streams-1]->priv_data;
3167 version = avio_r8(pb); /* version */
3168 avio_rb24(pb); /* flags */
3169 edit_count = avio_rb32(pb); /* entries */
3171 if ((uint64_t)edit_count*12+8 > atom.size)
3172 return AVERROR_INVALIDDATA;
3174 av_dlog(c->fc, "track[%i].edit_count = %i\n", c->fc->nb_streams-1, edit_count);
3175 for (i=0; i<edit_count; i++){
3180 duration = avio_rb64(pb);
3181 time = avio_rb64(pb);
3183 duration = avio_rb32(pb); /* segment duration */
3184 time = (int32_t)avio_rb32(pb); /* media time */
3186 rate = avio_rb32(pb);
3187 if (i == 0 && time == -1) {
3188 sc->empty_duration = duration;
3189 edit_start_index = 1;
3190 } else if (i == edit_start_index && time >= 0)
3191 sc->start_time = time;
3195 av_dlog(c->fc, "duration=%"PRId64" time=%"PRId64" rate=%f\n",
3196 duration, time, rate / 65536.0);
3200 av_log(c->fc, AV_LOG_WARNING, "multiple edit list entries, "
3201 "a/v desync might occur, patch welcome\n");
3206 static int mov_read_tmcd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3208 MOVStreamContext *sc;
3210 if (c->fc->nb_streams < 1)
3211 return AVERROR_INVALIDDATA;
3212 sc = c->fc->streams[c->fc->nb_streams - 1]->priv_data;
3213 sc->timecode_track = avio_rb32(pb);
3217 static int mov_read_uuid(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3221 static const uint8_t uuid_isml_manifest[] = {
3222 0xa5, 0xd4, 0x0b, 0x30, 0xe8, 0x14, 0x11, 0xdd,
3223 0xba, 0x2f, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66
3226 if (atom.size < sizeof(uuid) || atom.size == INT64_MAX)
3227 return AVERROR_INVALIDDATA;
3229 ret = avio_read(pb, uuid, sizeof(uuid));
3232 } else if (ret != sizeof(uuid)) {
3233 return AVERROR_INVALIDDATA;
3235 if (!memcmp(uuid, uuid_isml_manifest, sizeof(uuid))) {
3236 uint8_t *buffer, *ptr;
3238 size_t len = atom.size - sizeof(uuid);
3241 return AVERROR_INVALIDDATA;
3243 ret = avio_skip(pb, 4); // zeroes
3246 buffer = av_mallocz(len + 1);
3248 return AVERROR(ENOMEM);
3250 ret = avio_read(pb, buffer, len);
3254 } else if (ret != len) {
3256 return AVERROR_INVALIDDATA;
3260 while ((ptr = av_stristr(ptr, "systemBitrate=\""))) {
3261 ptr += sizeof("systemBitrate=\"") - 1;
3262 c->bitrates_count++;
3263 c->bitrates = av_realloc_f(c->bitrates, c->bitrates_count, sizeof(*c->bitrates));
3265 c->bitrates_count = 0;
3267 return AVERROR(ENOMEM);
3270 ret = strtol(ptr, &endptr, 10);
3271 if (ret < 0 || errno || *endptr != '"') {
3272 c->bitrates[c->bitrates_count - 1] = 0;
3274 c->bitrates[c->bitrates_count - 1] = ret;
3283 static int mov_read_free(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3286 uint8_t content[16];
3291 ret = avio_read(pb, content, FFMIN(sizeof(content), atom.size));
3297 && !memcmp(content, "Anevia\x1A\x1A", 8)
3298 && c->use_mfra_for == FF_MOV_FLAG_MFRA_AUTO) {
3299 c->use_mfra_for = FF_MOV_FLAG_MFRA_PTS;
3305 static const MOVParseTableEntry mov_default_parse_table[] = {
3306 { MKTAG('A','C','L','R'), mov_read_avid },
3307 { MKTAG('A','P','R','G'), mov_read_avid },
3308 { MKTAG('A','A','L','P'), mov_read_avid },
3309 { MKTAG('A','R','E','S'), mov_read_ares },
3310 { MKTAG('a','v','s','s'), mov_read_avss },
3311 { MKTAG('c','h','p','l'), mov_read_chpl },
3312 { MKTAG('c','o','6','4'), mov_read_stco },
3313 { MKTAG('c','o','l','r'), mov_read_colr },
3314 { MKTAG('c','t','t','s'), mov_read_ctts }, /* composition time to sample */
3315 { MKTAG('d','i','n','f'), mov_read_default },
3316 { MKTAG('d','r','e','f'), mov_read_dref },
3317 { MKTAG('e','d','t','s'), mov_read_default },
3318 { MKTAG('e','l','s','t'), mov_read_elst },
3319 { MKTAG('e','n','d','a'), mov_read_enda },
3320 { MKTAG('f','i','e','l'), mov_read_fiel },
3321 { MKTAG('f','t','y','p'), mov_read_ftyp },
3322 { MKTAG('g','l','b','l'), mov_read_glbl },
3323 { MKTAG('h','d','l','r'), mov_read_hdlr },
3324 { MKTAG('i','l','s','t'), mov_read_ilst },
3325 { MKTAG('j','p','2','h'), mov_read_jp2h },
3326 { MKTAG('m','d','a','t'), mov_read_mdat },
3327 { MKTAG('m','d','h','d'), mov_read_mdhd },
3328 { MKTAG('m','d','i','a'), mov_read_default },
3329 { MKTAG('m','e','t','a'), mov_read_meta },
3330 { MKTAG('m','i','n','f'), mov_read_default },
3331 { MKTAG('m','o','o','f'), mov_read_moof },
3332 { MKTAG('m','o','o','v'), mov_read_moov },
3333 { MKTAG('m','v','e','x'), mov_read_default },
3334 { MKTAG('m','v','h','d'), mov_read_mvhd },
3335 { MKTAG('S','M','I',' '), mov_read_svq3 },
3336 { MKTAG('a','l','a','c'), mov_read_alac }, /* alac specific atom */
3337 { MKTAG('a','v','c','C'), mov_read_glbl },
3338 { MKTAG('p','a','s','p'), mov_read_pasp },
3339 { MKTAG('s','t','b','l'), mov_read_default },
3340 { MKTAG('s','t','c','o'), mov_read_stco },
3341 { MKTAG('s','t','p','s'), mov_read_stps },
3342 { MKTAG('s','t','r','f'), mov_read_strf },
3343 { MKTAG('s','t','s','c'), mov_read_stsc },
3344 { MKTAG('s','t','s','d'), mov_read_stsd }, /* sample description */
3345 { MKTAG('s','t','s','s'), mov_read_stss }, /* sync sample */
3346 { MKTAG('s','t','s','z'), mov_read_stsz }, /* sample size */
3347 { MKTAG('s','t','t','s'), mov_read_stts },
3348 { MKTAG('s','t','z','2'), mov_read_stsz }, /* compact sample size */
3349 { MKTAG('t','k','h','d'), mov_read_tkhd }, /* track header */
3350 { MKTAG('t','f','d','t'), mov_read_tfdt },
3351 { MKTAG('t','f','h','d'), mov_read_tfhd }, /* track fragment header */
3352 { MKTAG('t','r','a','k'), mov_read_trak },
3353 { MKTAG('t','r','a','f'), mov_read_default },
3354 { MKTAG('t','r','e','f'), mov_read_default },
3355 { MKTAG('t','m','c','d'), mov_read_tmcd },
3356 { MKTAG('c','h','a','p'), mov_read_chap },
3357 { MKTAG('t','r','e','x'), mov_read_trex },
3358 { MKTAG('t','r','u','n'), mov_read_trun },
3359 { MKTAG('u','d','t','a'), mov_read_default },
3360 { MKTAG('w','a','v','e'), mov_read_wave },
3361 { MKTAG('e','s','d','s'), mov_read_esds },
3362 { MKTAG('d','a','c','3'), mov_read_dac3 }, /* AC-3 info */
3363 { MKTAG('d','e','c','3'), mov_read_dec3 }, /* EAC-3 info */
3364 { MKTAG('w','i','d','e'), mov_read_wide }, /* place holder */
3365 { MKTAG('w','f','e','x'), mov_read_wfex },
3366 { MKTAG('c','m','o','v'), mov_read_cmov },
3367 { MKTAG('c','h','a','n'), mov_read_chan }, /* channel layout */
3368 { MKTAG('d','v','c','1'), mov_read_dvc1 },
3369 { MKTAG('s','b','g','p'), mov_read_sbgp },
3370 { MKTAG('h','v','c','C'), mov_read_glbl },
3371 { MKTAG('u','u','i','d'), mov_read_uuid },
3372 { MKTAG('C','i','n', 0x8e), mov_read_targa_y216 },
3373 { MKTAG('f','r','e','e'), mov_read_free },
3374 { MKTAG('-','-','-','-'), mov_read_custom },
3378 static int mov_read_default(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3380 int64_t total_size = 0;
3385 atom.size = INT64_MAX;
3386 while (total_size + 8 <= atom.size && !avio_feof(pb)) {
3387 int (*parse)(MOVContext*, AVIOContext*, MOVAtom) = NULL;
3390 if (atom.size >= 8) {
3391 a.size = avio_rb32(pb);
3392 a.type = avio_rl32(pb);
3393 if (a.type == MKTAG('f','r','e','e') &&
3397 uint32_t *type = (uint32_t *)buf + 1;
3398 avio_read(pb, buf, 8);
3399 avio_seek(pb, -8, SEEK_CUR);
3400 if (*type == MKTAG('m','v','h','d') ||
3401 *type == MKTAG('c','m','o','v')) {
3402 av_log(c->fc, AV_LOG_ERROR, "Detected moov in a free atom.\n");
3403 a.type = MKTAG('m','o','o','v');
3406 if (atom.type != MKTAG('r','o','o','t') &&
3407 atom.type != MKTAG('m','o','o','v'))
3409 if (a.type == MKTAG('t','r','a','k') || a.type == MKTAG('m','d','a','t'))
3411 av_log(c->fc, AV_LOG_ERROR, "Broken file, trak/mdat not at top-level\n");
3417 if (a.size == 1) { /* 64 bit extended size */
3418 a.size = avio_rb64(pb) - 8;
3422 av_dlog(c->fc, "type: %08x '%.4s' parent:'%.4s' sz: %"PRId64" %"PRId64" %"PRId64"\n",
3423 a.type, (char*)&a.type, (char*)&atom.type, a.size, total_size, atom.size);
3425 a.size = atom.size - total_size + 8;
3430 a.size = FFMIN(a.size, atom.size - total_size);
3432 for (i = 0; mov_default_parse_table[i].type; i++)
3433 if (mov_default_parse_table[i].type == a.type) {
3434 parse = mov_default_parse_table[i].parse;
3438 // container is user data
3439 if (!parse && (atom.type == MKTAG('u','d','t','a') ||
3440 atom.type == MKTAG('i','l','s','t')))
3441 parse = mov_read_udta_string;
3443 if (!parse) { /* skip leaf atoms data */
3444 avio_skip(pb, a.size);
3446 int64_t start_pos = avio_tell(pb);
3448 int err = parse(c, pb, a);
3451 if (c->found_moov && c->found_mdat &&
3452 ((!pb->seekable || c->fc->flags & AVFMT_FLAG_IGNIDX) ||
3453 start_pos + a.size == avio_size(pb))) {
3454 if (!pb->seekable || c->fc->flags & AVFMT_FLAG_IGNIDX)
3455 c->next_root_atom = start_pos + a.size;
3458 left = a.size - avio_tell(pb) + start_pos;
3459 if (left > 0) /* skip garbage at atom end */
3460 avio_skip(pb, left);
3461 else if (left < 0) {
3462 av_log(c->fc, AV_LOG_WARNING,
3463 "overread end of atom '%.4s' by %"PRId64" bytes\n",
3464 (char*)&a.type, -left);
3465 avio_seek(pb, left, SEEK_CUR);
3469 total_size += a.size;
3472 if (total_size < atom.size && atom.size < 0x7ffff)
3473 avio_skip(pb, atom.size - total_size);
3478 static int mov_probe(AVProbeData *p)
3483 int moov_offset = -1;
3485 /* check file header */
3488 /* ignore invalid offset */
3489 if ((offset + 8) > (unsigned int)p->buf_size)
3491 tag = AV_RL32(p->buf + offset + 4);
3493 /* check for obvious tags */
3494 case MKTAG('m','o','o','v'):
3495 moov_offset = offset + 4;
3496 case MKTAG('m','d','a','t'):
3497 case MKTAG('p','n','o','t'): /* detect movs with preview pics like ew.mov and april.mov */
3498 case MKTAG('u','d','t','a'): /* Packet Video PVAuthor adds this and a lot of more junk */
3499 case MKTAG('f','t','y','p'):
3500 if (AV_RB32(p->buf+offset) < 8 &&
3501 (AV_RB32(p->buf+offset) != 1 ||
3502 offset + 12 > (unsigned int)p->buf_size ||
3503 AV_RB64(p->buf+offset + 8) == 0)) {
3504 score = FFMAX(score, AVPROBE_SCORE_EXTENSION);
3505 } else if (tag == MKTAG('f','t','y','p') &&
3506 AV_RL32(p->buf + offset + 8) == MKTAG('j','p','2',' ')) {
3507 score = FFMAX(score, 5);
3509 score = AVPROBE_SCORE_MAX;
3511 offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
3513 /* those are more common words, so rate then a bit less */
3514 case MKTAG('e','d','i','w'): /* xdcam files have reverted first tags */
3515 case MKTAG('w','i','d','e'):
3516 case MKTAG('f','r','e','e'):
3517 case MKTAG('j','u','n','k'):
3518 case MKTAG('p','i','c','t'):
3519 score = FFMAX(score, AVPROBE_SCORE_MAX - 5);
3520 offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
3522 case MKTAG(0x82,0x82,0x7f,0x7d):
3523 case MKTAG('s','k','i','p'):
3524 case MKTAG('u','u','i','d'):
3525 case MKTAG('p','r','f','l'):
3526 /* if we only find those cause probedata is too small at least rate them */
3527 score = FFMAX(score, AVPROBE_SCORE_EXTENSION);
3528 offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
3531 offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
3534 if(score > AVPROBE_SCORE_MAX - 50 && moov_offset != -1) {
3535 /* moov atom in the header - we should make sure that this is not a
3536 * MOV-packed MPEG-PS */
3537 offset = moov_offset;
3539 while(offset < (p->buf_size - 16)){ /* Sufficient space */
3540 /* We found an actual hdlr atom */
3541 if(AV_RL32(p->buf + offset ) == MKTAG('h','d','l','r') &&
3542 AV_RL32(p->buf + offset + 8) == MKTAG('m','h','l','r') &&
3543 AV_RL32(p->buf + offset + 12) == MKTAG('M','P','E','G')){
3544 av_log(NULL, AV_LOG_WARNING, "Found media data tag MPEG indicating this is a MOV-packed MPEG-PS.\n");
3545 /* We found a media handler reference atom describing an
3546 * MPEG-PS-in-MOV, return a
3547 * low score to force expanding the probe window until
3548 * mpegps_probe finds what it needs */
3559 // must be done after parsing all trak because there's no order requirement
3560 static void mov_read_chapters(AVFormatContext *s)
3562 MOVContext *mov = s->priv_data;
3563 AVStream *st = NULL;
3564 MOVStreamContext *sc;
3568 for (i = 0; i < s->nb_streams; i++)
3569 if (s->streams[i]->id == mov->chapter_track) {
3574 av_log(s, AV_LOG_ERROR, "Referenced QT chapter track not found\n");
3578 st->discard = AVDISCARD_ALL;
3580 cur_pos = avio_tell(sc->pb);
3582 for (i = 0; i < st->nb_index_entries; i++) {
3583 AVIndexEntry *sample = &st->index_entries[i];
3584 int64_t end = i+1 < st->nb_index_entries ? st->index_entries[i+1].timestamp : st->duration;
3589 if (end < sample->timestamp) {
3590 av_log(s, AV_LOG_WARNING, "ignoring stream duration which is shorter than chapters\n");
3591 end = AV_NOPTS_VALUE;
3594 if (avio_seek(sc->pb, sample->pos, SEEK_SET) != sample->pos) {
3595 av_log(s, AV_LOG_ERROR, "Chapter %d not found in file\n", i);
3599 // the first two bytes are the length of the title
3600 len = avio_rb16(sc->pb);
3601 if (len > sample->size-2)
3603 title_len = 2*len + 1;
3604 if (!(title = av_mallocz(title_len)))
3607 // The samples could theoretically be in any encoding if there's an encd
3608 // atom following, but in practice are only utf-8 or utf-16, distinguished
3609 // instead by the presence of a BOM
3613 ch = avio_rb16(sc->pb);
3615 avio_get_str16be(sc->pb, len, title, title_len);
3616 else if (ch == 0xfffe)
3617 avio_get_str16le(sc->pb, len, title, title_len);
3620 if (len == 1 || len == 2)
3623 avio_get_str(sc->pb, INT_MAX, title + 2, len - 1);
3627 avpriv_new_chapter(s, i, st->time_base, sample->timestamp, end, title);
3631 avio_seek(sc->pb, cur_pos, SEEK_SET);
3634 static int parse_timecode_in_framenum_format(AVFormatContext *s, AVStream *st,
3635 uint32_t value, int flags)
3638 char buf[AV_TIMECODE_STR_SIZE];
3639 AVRational rate = {st->codec->time_base.den,
3640 st->codec->time_base.num};
3641 int ret = av_timecode_init(&tc, rate, flags, 0, s);
3644 av_dict_set(&st->metadata, "timecode",
3645 av_timecode_make_string(&tc, buf, value), 0);
3649 static int mov_read_timecode_track(AVFormatContext *s, AVStream *st)
3651 MOVStreamContext *sc = st->priv_data;
3653 int64_t cur_pos = avio_tell(sc->pb);
3656 if (!st->nb_index_entries)
3659 avio_seek(sc->pb, st->index_entries->pos, SEEK_SET);
3660 value = avio_rb32(s->pb);
3662 if (sc->tmcd_flags & 0x0001) flags |= AV_TIMECODE_FLAG_DROPFRAME;
3663 if (sc->tmcd_flags & 0x0002) flags |= AV_TIMECODE_FLAG_24HOURSMAX;
3664 if (sc->tmcd_flags & 0x0004) flags |= AV_TIMECODE_FLAG_ALLOWNEGATIVE;
3666 /* Assume Counter flag is set to 1 in tmcd track (even though it is likely
3667 * not the case) and thus assume "frame number format" instead of QT one.
3668 * No sample with tmcd track can be found with a QT timecode at the moment,
3669 * despite what the tmcd track "suggests" (Counter flag set to 0 means QT
3671 parse_timecode_in_framenum_format(s, st, value, flags);
3673 avio_seek(sc->pb, cur_pos, SEEK_SET);
3677 static int mov_read_close(AVFormatContext *s)
3679 MOVContext *mov = s->priv_data;
3682 for (i = 0; i < s->nb_streams; i++) {
3683 AVStream *st = s->streams[i];
3684 MOVStreamContext *sc = st->priv_data;
3686 av_freep(&sc->ctts_data);
3687 for (j = 0; j < sc->drefs_count; j++) {
3688 av_freep(&sc->drefs[j].path);
3689 av_freep(&sc->drefs[j].dir);
3691 av_freep(&sc->drefs);
3693 sc->drefs_count = 0;
3695 if (!sc->pb_is_copied)
3699 av_freep(&sc->chunk_offsets);
3700 av_freep(&sc->stsc_data);
3701 av_freep(&sc->sample_sizes);
3702 av_freep(&sc->keyframes);
3703 av_freep(&sc->stts_data);
3704 av_freep(&sc->stps_data);
3705 av_freep(&sc->rap_group);
3706 av_freep(&sc->display_matrix);
3709 if (mov->dv_demux) {
3710 avformat_free_context(mov->dv_fctx);
3711 mov->dv_fctx = NULL;
3714 av_freep(&mov->trex_data);
3715 av_freep(&mov->bitrates);
3717 for (i = 0; i < mov->fragment_index_count; i++) {
3718 MOVFragmentIndex* index = mov->fragment_index_data[i];
3719 av_freep(&index->items);
3720 av_freep(&mov->fragment_index_data[i]);
3722 av_freep(&mov->fragment_index_data);
3727 static int tmcd_is_referenced(AVFormatContext *s, int tmcd_id)
3731 for (i = 0; i < s->nb_streams; i++) {
3732 AVStream *st = s->streams[i];
3733 MOVStreamContext *sc = st->priv_data;
3735 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
3736 sc->timecode_track == tmcd_id)
3742 /* look for a tmcd track not referenced by any video track, and export it globally */
3743 static void export_orphan_timecode(AVFormatContext *s)
3747 for (i = 0; i < s->nb_streams; i++) {
3748 AVStream *st = s->streams[i];
3750 if (st->codec->codec_tag == MKTAG('t','m','c','d') &&
3751 !tmcd_is_referenced(s, i + 1)) {
3752 AVDictionaryEntry *tcr = av_dict_get(st->metadata, "timecode", NULL, 0);
3754 av_dict_set(&s->metadata, "timecode", tcr->value, 0);
3761 static int read_tfra(MOVContext *mov, AVIOContext *f)
3763 MOVFragmentIndex* index = NULL;
3764 int version, fieldlength, i, j, err;
3765 int64_t pos = avio_tell(f);
3766 uint32_t size = avio_rb32(f);
3767 if (avio_rb32(f) != MKBETAG('t', 'f', 'r', 'a')) {
3770 av_log(mov->fc, AV_LOG_VERBOSE, "found tfra\n");
3771 index = av_mallocz(sizeof(MOVFragmentIndex));
3773 return AVERROR(ENOMEM);
3775 mov->fragment_index_count++;
3776 if ((err = av_reallocp(&mov->fragment_index_data,
3777 mov->fragment_index_count *
3778 sizeof(MOVFragmentIndex*))) < 0) {
3782 mov->fragment_index_data[mov->fragment_index_count - 1] =
3785 version = avio_r8(f);
3787 index->track_id = avio_rb32(f);
3788 fieldlength = avio_rb32(f);
3789 index->item_count = avio_rb32(f);
3790 index->items = av_mallocz(
3791 index->item_count * sizeof(MOVFragmentIndexItem));
3792 if (!index->items) {
3793 return AVERROR(ENOMEM);
3795 for (i = 0; i < index->item_count; i++) {
3796 int64_t time, offset;
3798 time = avio_rb64(f);
3799 offset = avio_rb64(f);
3801 time = avio_rb32(f);
3802 offset = avio_rb32(f);
3804 index->items[i].time = time;
3805 index->items[i].moof_offset = offset;
3806 for (j = 0; j < ((fieldlength >> 4) & 3) + 1; j++)
3808 for (j = 0; j < ((fieldlength >> 2) & 3) + 1; j++)
3810 for (j = 0; j < ((fieldlength >> 0) & 3) + 1; j++)
3814 avio_seek(f, pos + size, SEEK_SET);
3818 static int mov_read_mfra(MOVContext *c, AVIOContext *f)
3820 int64_t stream_size = avio_size(f);
3821 int64_t original_pos = avio_tell(f);
3824 if ((ret = avio_seek(f, stream_size - 4, SEEK_SET)) < 0) goto fail;
3825 mfra_size = avio_rb32(f);
3826 if (mfra_size < 0 || mfra_size > stream_size) {
3827 av_log(c->fc, AV_LOG_DEBUG, "doesn't look like mfra (unreasonable size)\n");
3831 if ((ret = avio_seek(f, -mfra_size, SEEK_CUR)) < 0) goto fail;
3832 if (avio_rb32(f) != mfra_size) {
3833 av_log(c->fc, AV_LOG_DEBUG, "doesn't look like mfra (size mismatch)\n");
3837 if (avio_rb32(f) != MKBETAG('m', 'f', 'r', 'a')) {
3838 av_log(c->fc, AV_LOG_DEBUG, "doesn't look like mfra (tag mismatch)\n");
3841 av_log(c->fc, AV_LOG_VERBOSE, "stream has mfra\n");
3842 while (!read_tfra(c, f)) {
3846 ret = avio_seek(f, original_pos, SEEK_SET);
3848 av_log(c->fc, AV_LOG_ERROR,
3849 "failed to seek back after looking for mfra\n");
3855 static int mov_read_header(AVFormatContext *s)
3857 MOVContext *mov = s->priv_data;
3858 AVIOContext *pb = s->pb;
3860 MOVAtom atom = { AV_RL32("root") };
3864 /* .mov and .mp4 aren't streamable anyway (only progressive download if moov is before mdat) */
3866 atom.size = avio_size(pb);
3868 atom.size = INT64_MAX;
3870 /* check MOV header */
3872 if (mov->moov_retry)
3873 avio_seek(pb, 0, SEEK_SET);
3874 if ((err = mov_read_default(mov, pb, atom)) < 0) {
3875 av_log(s, AV_LOG_ERROR, "error reading header\n");
3879 } while (pb->seekable && !mov->found_moov && !mov->moov_retry++);
3880 if (!mov->found_moov) {
3881 av_log(s, AV_LOG_ERROR, "moov atom not found\n");
3883 return AVERROR_INVALIDDATA;
3885 av_dlog(mov->fc, "on_parse_exit_offset=%"PRId64"\n", avio_tell(pb));
3888 if (mov->chapter_track > 0)
3889 mov_read_chapters(s);
3890 for (i = 0; i < s->nb_streams; i++)
3891 if (s->streams[i]->codec->codec_tag == AV_RL32("tmcd"))
3892 mov_read_timecode_track(s, s->streams[i]);
3895 /* copy timecode metadata from tmcd tracks to the related video streams */
3896 for (i = 0; i < s->nb_streams; i++) {
3897 AVStream *st = s->streams[i];
3898 MOVStreamContext *sc = st->priv_data;
3899 if (sc->timecode_track > 0) {
3900 AVDictionaryEntry *tcr;
3901 int tmcd_st_id = -1;
3903 for (j = 0; j < s->nb_streams; j++)
3904 if (s->streams[j]->id == sc->timecode_track)
3907 if (tmcd_st_id < 0 || tmcd_st_id == i)
3909 tcr = av_dict_get(s->streams[tmcd_st_id]->metadata, "timecode", NULL, 0);
3911 av_dict_set(&st->metadata, "timecode", tcr->value, 0);
3914 export_orphan_timecode(s);
3916 for (i = 0; i < s->nb_streams; i++) {
3917 AVStream *st = s->streams[i];
3918 MOVStreamContext *sc = st->priv_data;
3919 fix_timescale(mov, sc);
3920 if(st->codec->codec_type == AVMEDIA_TYPE_AUDIO && st->codec->codec_id == AV_CODEC_ID_AAC) {
3921 st->skip_samples = sc->start_pad;
3923 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && sc->nb_frames_for_fps > 0 && sc->duration_for_fps > 0)
3924 av_reduce(&st->avg_frame_rate.num, &st->avg_frame_rate.den,
3925 sc->time_scale*(int64_t)sc->nb_frames_for_fps, sc->duration_for_fps, INT_MAX);
3926 if (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
3927 if (st->codec->width <= 0 || st->codec->height <= 0) {
3928 st->codec->width = sc->width;
3929 st->codec->height = sc->height;
3931 if (st->codec->codec_id == AV_CODEC_ID_DVD_SUBTITLE) {
3932 if ((err = mov_rewrite_dvd_sub_extradata(st)) < 0)
3938 if (mov->trex_data) {
3939 for (i = 0; i < s->nb_streams; i++) {
3940 AVStream *st = s->streams[i];
3941 MOVStreamContext *sc = st->priv_data;
3942 if (st->duration > 0)
3943 st->codec->bit_rate = sc->data_size * 8 * sc->time_scale / st->duration;
3947 if (mov->use_mfra_for > 0) {
3948 for (i = 0; i < s->nb_streams; i++) {
3949 AVStream *st = s->streams[i];
3950 MOVStreamContext *sc = st->priv_data;
3951 if (sc->duration_for_fps > 0) {
3952 st->codec->bit_rate = sc->data_size * 8 * sc->time_scale /
3953 sc->duration_for_fps;
3958 for (i = 0; i < mov->bitrates_count && i < s->nb_streams; i++) {
3959 if (mov->bitrates[i]) {
3960 s->streams[i]->codec->bit_rate = mov->bitrates[i];
3964 ff_rfps_calculate(s);
3966 for (i = 0; i < s->nb_streams; i++) {
3967 AVStream *st = s->streams[i];
3968 MOVStreamContext *sc = st->priv_data;
3970 switch (st->codec->codec_type) {
3971 case AVMEDIA_TYPE_AUDIO:
3972 err = ff_replaygain_export(st, s->metadata);
3978 case AVMEDIA_TYPE_VIDEO:
3979 if (sc->display_matrix) {
3980 AVPacketSideData *sd, *tmp;
3982 tmp = av_realloc_array(st->side_data,
3983 st->nb_side_data + 1, sizeof(*tmp));
3985 return AVERROR(ENOMEM);
3987 st->side_data = tmp;
3990 sd = &st->side_data[st->nb_side_data - 1];
3991 sd->type = AV_PKT_DATA_DISPLAYMATRIX;
3992 sd->size = sizeof(int32_t) * 9;
3993 sd->data = (uint8_t*)sc->display_matrix;
3994 sc->display_matrix = NULL;
4003 static AVIndexEntry *mov_find_next_sample(AVFormatContext *s, AVStream **st)
4005 AVIndexEntry *sample = NULL;
4006 int64_t best_dts = INT64_MAX;
4008 for (i = 0; i < s->nb_streams; i++) {
4009 AVStream *avst = s->streams[i];
4010 MOVStreamContext *msc = avst->priv_data;
4011 if (msc->pb && msc->current_sample < avst->nb_index_entries) {
4012 AVIndexEntry *current_sample = &avst->index_entries[msc->current_sample];
4013 int64_t dts = av_rescale(current_sample->timestamp, AV_TIME_BASE, msc->time_scale);
4014 av_dlog(s, "stream %d, sample %d, dts %"PRId64"\n", i, msc->current_sample, dts);
4015 if (!sample || (!s->pb->seekable && current_sample->pos < sample->pos) ||
4017 ((msc->pb != s->pb && dts < best_dts) || (msc->pb == s->pb &&
4018 ((FFABS(best_dts - dts) <= AV_TIME_BASE && current_sample->pos < sample->pos) ||
4019 (FFABS(best_dts - dts) > AV_TIME_BASE && dts < best_dts)))))) {
4020 sample = current_sample;
4029 static int mov_read_packet(AVFormatContext *s, AVPacket *pkt)
4031 MOVContext *mov = s->priv_data;
4032 MOVStreamContext *sc;
4033 AVIndexEntry *sample;
4034 AVStream *st = NULL;
4038 sample = mov_find_next_sample(s, &st);
4040 mov->found_mdat = 0;
4041 if (!mov->next_root_atom)
4043 avio_seek(s->pb, mov->next_root_atom, SEEK_SET);
4044 mov->next_root_atom = 0;
4045 if (mov_read_default(mov, s->pb, (MOVAtom){ AV_RL32("root"), INT64_MAX }) < 0 ||
4048 av_dlog(s, "read fragments, offset 0x%"PRIx64"\n", avio_tell(s->pb));
4052 /* must be done just before reading, to avoid infinite loop on sample */
4053 sc->current_sample++;
4055 if (mov->next_root_atom) {
4056 sample->pos = FFMIN(sample->pos, mov->next_root_atom);
4057 sample->size = FFMIN(sample->size, (mov->next_root_atom - sample->pos));
4060 if (st->discard != AVDISCARD_ALL) {
4061 if (avio_seek(sc->pb, sample->pos, SEEK_SET) != sample->pos) {
4062 av_log(mov->fc, AV_LOG_ERROR, "stream %d, offset 0x%"PRIx64": partial file\n",
4063 sc->ffindex, sample->pos);
4064 return AVERROR_INVALIDDATA;
4066 ret = av_get_packet(sc->pb, pkt, sample->size);
4069 if (sc->has_palette) {
4072 pal = av_packet_new_side_data(pkt, AV_PKT_DATA_PALETTE, AVPALETTE_SIZE);
4074 av_log(mov->fc, AV_LOG_ERROR, "Cannot append palette to packet\n");
4076 memcpy(pal, sc->palette, AVPALETTE_SIZE);
4077 sc->has_palette = 0;
4080 #if CONFIG_DV_DEMUXER
4081 if (mov->dv_demux && sc->dv_audio_container) {
4082 avpriv_dv_produce_packet(mov->dv_demux, pkt, pkt->data, pkt->size, pkt->pos);
4085 ret = avpriv_dv_get_packet(mov->dv_demux, pkt);
4092 pkt->stream_index = sc->ffindex;
4093 pkt->dts = sample->timestamp;
4094 if (sc->ctts_data && sc->ctts_index < sc->ctts_count) {
4095 pkt->pts = pkt->dts + sc->dts_shift + sc->ctts_data[sc->ctts_index].duration;
4096 /* update ctts context */
4098 if (sc->ctts_index < sc->ctts_count &&
4099 sc->ctts_data[sc->ctts_index].count == sc->ctts_sample) {
4101 sc->ctts_sample = 0;
4104 pkt->dts = AV_NOPTS_VALUE;
4106 int64_t next_dts = (sc->current_sample < st->nb_index_entries) ?
4107 st->index_entries[sc->current_sample].timestamp : st->duration;
4108 pkt->duration = next_dts - pkt->dts;
4109 pkt->pts = pkt->dts;
4111 if (st->discard == AVDISCARD_ALL)
4113 pkt->flags |= sample->flags & AVINDEX_KEYFRAME ? AV_PKT_FLAG_KEY : 0;
4114 pkt->pos = sample->pos;
4115 av_dlog(s, "stream %d, pts %"PRId64", dts %"PRId64", pos 0x%"PRIx64", duration %d\n",
4116 pkt->stream_index, pkt->pts, pkt->dts, pkt->pos, pkt->duration);
4120 static int mov_seek_stream(AVFormatContext *s, AVStream *st, int64_t timestamp, int flags)
4122 MOVStreamContext *sc = st->priv_data;
4123 int sample, time_sample;
4126 sample = av_index_search_timestamp(st, timestamp, flags);
4127 av_dlog(s, "stream %d, timestamp %"PRId64", sample %d\n", st->index, timestamp, sample);
4128 if (sample < 0 && st->nb_index_entries && timestamp < st->index_entries[0].timestamp)
4130 if (sample < 0) /* not sure what to do */
4131 return AVERROR_INVALIDDATA;
4132 sc->current_sample = sample;
4133 av_dlog(s, "stream %d, found sample %d\n", st->index, sc->current_sample);
4134 /* adjust ctts index */
4135 if (sc->ctts_data) {
4137 for (i = 0; i < sc->ctts_count; i++) {
4138 int next = time_sample + sc->ctts_data[i].count;
4139 if (next > sc->current_sample) {
4141 sc->ctts_sample = sc->current_sample - time_sample;
4150 static int mov_read_seek(AVFormatContext *s, int stream_index, int64_t sample_time, int flags)
4153 int64_t seek_timestamp, timestamp;
4157 if (stream_index >= s->nb_streams)
4158 return AVERROR_INVALIDDATA;
4160 st = s->streams[stream_index];
4161 sample = mov_seek_stream(s, st, sample_time, flags);
4165 /* adjust seek timestamp to found sample timestamp */
4166 seek_timestamp = st->index_entries[sample].timestamp;
4168 for (i = 0; i < s->nb_streams; i++) {
4169 MOVStreamContext *sc = s->streams[i]->priv_data;
4171 st->skip_samples = (sample_time <= 0) ? sc->start_pad : 0;
4173 if (stream_index == i)
4176 timestamp = av_rescale_q(seek_timestamp, s->streams[stream_index]->time_base, st->time_base);
4177 mov_seek_stream(s, st, timestamp, flags);
4182 static const AVOption options[] = {
4183 {"use_absolute_path",
4184 "allow using absolute path when opening alias, this is a possible security issue",
4185 offsetof(MOVContext, use_absolute_path), FF_OPT_TYPE_INT, {.i64 = 0},
4186 0, 1, AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_DECODING_PARAM},
4187 {"ignore_editlist", "", offsetof(MOVContext, ignore_editlist), FF_OPT_TYPE_INT, {.i64 = 0},
4188 0, 1, AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_DECODING_PARAM},
4190 "use mfra for fragment timestamps",
4191 offsetof(MOVContext, use_mfra_for), FF_OPT_TYPE_INT, {.i64 = FF_MOV_FLAG_MFRA_AUTO},
4192 -1, FF_MOV_FLAG_MFRA_PTS, AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_DECODING_PARAM,
4194 {"auto", "auto", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_MFRA_AUTO}, 0, 0,
4195 AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_DECODING_PARAM, "use_mfra_for" },
4196 {"dts", "dts", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_MFRA_DTS}, 0, 0,
4197 AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_DECODING_PARAM, "use_mfra_for" },
4198 {"pts", "pts", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_MFRA_PTS}, 0, 0,
4199 AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_DECODING_PARAM, "use_mfra_for" },
4203 static const AVClass mov_class = {
4204 .class_name = "mov,mp4,m4a,3gp,3g2,mj2",
4205 .item_name = av_default_item_name,
4207 .version = LIBAVUTIL_VERSION_INT,
4210 AVInputFormat ff_mov_demuxer = {
4211 .name = "mov,mp4,m4a,3gp,3g2,mj2",
4212 .long_name = NULL_IF_CONFIG_SMALL("QuickTime / MOV"),
4213 .priv_data_size = sizeof(MOVContext),
4214 .extensions = "mov,mp4,m4a,3gp,3g2,mj2",
4215 .read_probe = mov_probe,
4216 .read_header = mov_read_header,
4217 .read_packet = mov_read_packet,
4218 .read_close = mov_read_close,
4219 .read_seek = mov_read_seek,
4220 .priv_class = &mov_class,
4221 .flags = AVFMT_NO_BYTE_SEEK,