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 #include "libavutil/attributes.h"
31 #include "libavutil/channel_layout.h"
32 #include "libavutil/intreadwrite.h"
33 #include "libavutil/intfloat.h"
34 #include "libavutil/mathematics.h"
35 #include "libavutil/time_internal.h"
36 #include "libavutil/avstring.h"
37 #include "libavutil/dict.h"
38 #include "libavutil/display.h"
39 #include "libavutil/opt.h"
40 #include "libavutil/timecode.h"
41 #include "libavcodec/ac3tab.h"
44 #include "avio_internal.h"
47 #include "libavcodec/get_bits.h"
50 #include "replaygain.h"
56 #include "qtpalette.h"
58 /* those functions parse an atom */
59 /* links atom IDs to parse functions */
60 typedef struct MOVParseTableEntry {
62 int (*parse)(MOVContext *ctx, AVIOContext *pb, MOVAtom atom);
65 static int mov_read_default(MOVContext *c, AVIOContext *pb, MOVAtom atom);
66 static int mov_read_mfra(MOVContext *c, AVIOContext *f);
68 static int mov_metadata_track_or_disc_number(MOVContext *c, AVIOContext *pb,
69 unsigned len, const char *key)
73 short current, total = 0;
74 avio_rb16(pb); // unknown
75 current = avio_rb16(pb);
77 total = avio_rb16(pb);
79 snprintf(buf, sizeof(buf), "%d", current);
81 snprintf(buf, sizeof(buf), "%d/%d", current, total);
82 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
83 av_dict_set(&c->fc->metadata, key, buf, 0);
88 static int mov_metadata_int8_bypass_padding(MOVContext *c, AVIOContext *pb,
89 unsigned len, const char *key)
91 /* bypass padding bytes */
96 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
97 av_dict_set_int(&c->fc->metadata, key, avio_r8(pb), 0);
102 static int mov_metadata_int8_no_padding(MOVContext *c, AVIOContext *pb,
103 unsigned len, const char *key)
105 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
106 av_dict_set_int(&c->fc->metadata, key, avio_r8(pb), 0);
111 static int mov_metadata_gnre(MOVContext *c, AVIOContext *pb,
112 unsigned len, const char *key)
116 avio_r8(pb); // unknown
119 if (genre < 1 || genre > ID3v1_GENRE_MAX)
121 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
122 av_dict_set(&c->fc->metadata, key, ff_id3v1_genre_str[genre-1], 0);
127 static const uint32_t mac_to_unicode[128] = {
128 0x00C4,0x00C5,0x00C7,0x00C9,0x00D1,0x00D6,0x00DC,0x00E1,
129 0x00E0,0x00E2,0x00E4,0x00E3,0x00E5,0x00E7,0x00E9,0x00E8,
130 0x00EA,0x00EB,0x00ED,0x00EC,0x00EE,0x00EF,0x00F1,0x00F3,
131 0x00F2,0x00F4,0x00F6,0x00F5,0x00FA,0x00F9,0x00FB,0x00FC,
132 0x2020,0x00B0,0x00A2,0x00A3,0x00A7,0x2022,0x00B6,0x00DF,
133 0x00AE,0x00A9,0x2122,0x00B4,0x00A8,0x2260,0x00C6,0x00D8,
134 0x221E,0x00B1,0x2264,0x2265,0x00A5,0x00B5,0x2202,0x2211,
135 0x220F,0x03C0,0x222B,0x00AA,0x00BA,0x03A9,0x00E6,0x00F8,
136 0x00BF,0x00A1,0x00AC,0x221A,0x0192,0x2248,0x2206,0x00AB,
137 0x00BB,0x2026,0x00A0,0x00C0,0x00C3,0x00D5,0x0152,0x0153,
138 0x2013,0x2014,0x201C,0x201D,0x2018,0x2019,0x00F7,0x25CA,
139 0x00FF,0x0178,0x2044,0x20AC,0x2039,0x203A,0xFB01,0xFB02,
140 0x2021,0x00B7,0x201A,0x201E,0x2030,0x00C2,0x00CA,0x00C1,
141 0x00CB,0x00C8,0x00CD,0x00CE,0x00CF,0x00CC,0x00D3,0x00D4,
142 0xF8FF,0x00D2,0x00DA,0x00DB,0x00D9,0x0131,0x02C6,0x02DC,
143 0x00AF,0x02D8,0x02D9,0x02DA,0x00B8,0x02DD,0x02DB,0x02C7,
146 static int mov_read_mac_string(MOVContext *c, AVIOContext *pb, int len,
147 char *dst, int dstlen)
150 char *end = dst+dstlen-1;
153 for (i = 0; i < len; i++) {
154 uint8_t t, c = avio_r8(pb);
155 if (c < 0x80 && p < end)
158 PUT_UTF8(mac_to_unicode[c-0x80], t, if (p < end) *p++ = t;);
164 static int mov_read_covr(MOVContext *c, AVIOContext *pb, int type, int len)
168 MOVStreamContext *sc;
173 case 0xd: id = AV_CODEC_ID_MJPEG; break;
174 case 0xe: id = AV_CODEC_ID_PNG; break;
175 case 0x1b: id = AV_CODEC_ID_BMP; break;
177 av_log(c->fc, AV_LOG_WARNING, "Unknown cover type: 0x%x.\n", type);
182 st = avformat_new_stream(c->fc, NULL);
184 return AVERROR(ENOMEM);
185 sc = av_mallocz(sizeof(*sc));
187 return AVERROR(ENOMEM);
190 ret = av_get_packet(pb, &pkt, len);
194 st->disposition |= AV_DISPOSITION_ATTACHED_PIC;
196 st->attached_pic = pkt;
197 st->attached_pic.stream_index = st->index;
198 st->attached_pic.flags |= AV_PKT_FLAG_KEY;
200 st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
201 st->codec->codec_id = id;
206 static int mov_metadata_loci(MOVContext *c, AVIOContext *pb, unsigned len)
208 char language[4] = { 0 };
209 char buf[200], place[100];
210 uint16_t langcode = 0;
211 double longitude, latitude, altitude;
212 const char *key = "location";
214 if (len < 4 + 2 + 1 + 1 + 4 + 4 + 4) {
215 av_log(c->fc, AV_LOG_ERROR, "loci too short\n");
216 return AVERROR_INVALIDDATA;
219 avio_skip(pb, 4); // version+flags
220 langcode = avio_rb16(pb);
221 ff_mov_lang_to_iso639(langcode, language);
224 len -= avio_get_str(pb, len, place, sizeof(place));
226 av_log(c->fc, AV_LOG_ERROR, "place name too long\n");
227 return AVERROR_INVALIDDATA;
229 avio_skip(pb, 1); // role
233 av_log(c->fc, AV_LOG_ERROR, "no space for coordinates left (%d)\n", len);
234 return AVERROR_INVALIDDATA;
236 longitude = ((int32_t) avio_rb32(pb)) / (float) (1 << 16);
237 latitude = ((int32_t) avio_rb32(pb)) / (float) (1 << 16);
238 altitude = ((int32_t) avio_rb32(pb)) / (float) (1 << 16);
240 // Try to output in the same format as the ?xyz field
241 snprintf(buf, sizeof(buf), "%+08.4f%+09.4f", latitude, longitude);
243 av_strlcatf(buf, sizeof(buf), "%+f", altitude);
244 av_strlcatf(buf, sizeof(buf), "/%s", place);
246 if (*language && strcmp(language, "und")) {
248 snprintf(key2, sizeof(key2), "%s-%s", key, language);
249 av_dict_set(&c->fc->metadata, key2, buf, 0);
251 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
252 return av_dict_set(&c->fc->metadata, key, buf, 0);
255 static int mov_read_udta_string(MOVContext *c, AVIOContext *pb, MOVAtom atom)
258 char key2[32], language[4] = {0};
260 const char *key = NULL;
261 uint16_t langcode = 0;
262 uint32_t data_type = 0, str_size, str_size_alloc;
263 int (*parse)(MOVContext*, AVIOContext*, unsigned, const char*) = NULL;
267 case MKTAG( '@','P','R','M'): key = "premiere_version"; raw = 1; break;
268 case MKTAG( '@','P','R','Q'): key = "quicktime_version"; raw = 1; break;
269 case MKTAG( 'X','M','P','_'):
270 if (c->export_xmp) { key = "xmp"; raw = 1; } break;
271 case MKTAG( 'a','A','R','T'): key = "album_artist"; break;
272 case MKTAG( 'a','k','I','D'): key = "account_type";
273 parse = mov_metadata_int8_no_padding; break;
274 case MKTAG( 'a','p','I','D'): key = "account_id"; break;
275 case MKTAG( 'c','a','t','g'): key = "category"; break;
276 case MKTAG( 'c','p','i','l'): key = "compilation";
277 parse = mov_metadata_int8_no_padding; break;
278 case MKTAG( 'c','p','r','t'): key = "copyright"; break;
279 case MKTAG( 'd','e','s','c'): key = "description"; break;
280 case MKTAG( 'd','i','s','k'): key = "disc";
281 parse = mov_metadata_track_or_disc_number; break;
282 case MKTAG( 'e','g','i','d'): key = "episode_uid";
283 parse = mov_metadata_int8_no_padding; break;
284 case MKTAG( 'g','n','r','e'): key = "genre";
285 parse = mov_metadata_gnre; break;
286 case MKTAG( 'h','d','v','d'): key = "hd_video";
287 parse = mov_metadata_int8_no_padding; break;
288 case MKTAG( 'k','e','y','w'): key = "keywords"; break;
289 case MKTAG( 'l','d','e','s'): key = "synopsis"; break;
290 case MKTAG( 'l','o','c','i'):
291 return mov_metadata_loci(c, pb, atom.size);
292 case MKTAG( 'p','c','s','t'): key = "podcast";
293 parse = mov_metadata_int8_no_padding; break;
294 case MKTAG( 'p','g','a','p'): key = "gapless_playback";
295 parse = mov_metadata_int8_no_padding; break;
296 case MKTAG( 'p','u','r','d'): key = "purchase_date"; break;
297 case MKTAG( 'r','t','n','g'): key = "rating";
298 parse = mov_metadata_int8_no_padding; break;
299 case MKTAG( 's','o','a','a'): key = "sort_album_artist"; break;
300 case MKTAG( 's','o','a','l'): key = "sort_album"; break;
301 case MKTAG( 's','o','a','r'): key = "sort_artist"; break;
302 case MKTAG( 's','o','c','o'): key = "sort_composer"; break;
303 case MKTAG( 's','o','n','m'): key = "sort_name"; break;
304 case MKTAG( 's','o','s','n'): key = "sort_show"; break;
305 case MKTAG( 's','t','i','k'): key = "media_type";
306 parse = mov_metadata_int8_no_padding; break;
307 case MKTAG( 't','r','k','n'): key = "track";
308 parse = mov_metadata_track_or_disc_number; break;
309 case MKTAG( 't','v','e','n'): key = "episode_id"; break;
310 case MKTAG( 't','v','e','s'): key = "episode_sort";
311 parse = mov_metadata_int8_bypass_padding; break;
312 case MKTAG( 't','v','n','n'): key = "network"; break;
313 case MKTAG( 't','v','s','h'): key = "show"; break;
314 case MKTAG( 't','v','s','n'): key = "season_number";
315 parse = mov_metadata_int8_bypass_padding; break;
316 case MKTAG(0xa9,'A','R','T'): key = "artist"; break;
317 case MKTAG(0xa9,'P','R','D'): key = "producer"; break;
318 case MKTAG(0xa9,'a','l','b'): key = "album"; break;
319 case MKTAG(0xa9,'a','u','t'): key = "artist"; break;
320 case MKTAG(0xa9,'c','h','p'): key = "chapter"; break;
321 case MKTAG(0xa9,'c','m','t'): key = "comment"; break;
322 case MKTAG(0xa9,'c','o','m'): key = "composer"; break;
323 case MKTAG(0xa9,'c','p','y'): key = "copyright"; break;
324 case MKTAG(0xa9,'d','a','y'): key = "date"; break;
325 case MKTAG(0xa9,'d','i','r'): key = "director"; break;
326 case MKTAG(0xa9,'d','i','s'): key = "disclaimer"; break;
327 case MKTAG(0xa9,'e','d','1'): key = "edit_date"; break;
328 case MKTAG(0xa9,'e','n','c'): key = "encoder"; break;
329 case MKTAG(0xa9,'f','m','t'): key = "original_format"; break;
330 case MKTAG(0xa9,'g','e','n'): key = "genre"; break;
331 case MKTAG(0xa9,'g','r','p'): key = "grouping"; break;
332 case MKTAG(0xa9,'h','s','t'): key = "host_computer"; break;
333 case MKTAG(0xa9,'i','n','f'): key = "comment"; break;
334 case MKTAG(0xa9,'l','y','r'): key = "lyrics"; break;
335 case MKTAG(0xa9,'m','a','k'): key = "make"; break;
336 case MKTAG(0xa9,'m','o','d'): key = "model"; break;
337 case MKTAG(0xa9,'n','a','m'): key = "title"; break;
338 case MKTAG(0xa9,'o','p','e'): key = "original_artist"; break;
339 case MKTAG(0xa9,'p','r','d'): key = "producer"; break;
340 case MKTAG(0xa9,'p','r','f'): key = "performers"; break;
341 case MKTAG(0xa9,'r','e','q'): key = "playback_requirements"; break;
342 case MKTAG(0xa9,'s','r','c'): key = "original_source"; break;
343 case MKTAG(0xa9,'s','t','3'): key = "subtitle"; break;
344 case MKTAG(0xa9,'s','w','r'): key = "encoder"; break;
345 case MKTAG(0xa9,'t','o','o'): key = "encoder"; break;
346 case MKTAG(0xa9,'t','r','k'): key = "track"; break;
347 case MKTAG(0xa9,'u','r','l'): key = "URL"; break;
348 case MKTAG(0xa9,'w','r','n'): key = "warning"; break;
349 case MKTAG(0xa9,'w','r','t'): key = "composer"; break;
350 case MKTAG(0xa9,'x','y','z'): key = "location"; break;
353 if (c->itunes_metadata && atom.size > 8) {
354 int data_size = avio_rb32(pb);
355 int tag = avio_rl32(pb);
356 if (tag == MKTAG('d','a','t','a') && data_size <= atom.size) {
357 data_type = avio_rb32(pb); // type
358 avio_rb32(pb); // unknown
359 str_size = data_size - 16;
362 if (atom.type == MKTAG('c', 'o', 'v', 'r')) {
363 int ret = mov_read_covr(c, pb, data_type, str_size);
365 av_log(c->fc, AV_LOG_ERROR, "Error parsing cover art.\n");
370 } else if (atom.size > 4 && key && !c->itunes_metadata && !raw) {
371 str_size = avio_rb16(pb); // string length
372 if (str_size > atom.size) {
374 avio_seek(pb, -2, SEEK_CUR);
375 av_log(c->fc, AV_LOG_WARNING, "UDTA parsing failed retrying raw\n");
378 langcode = avio_rb16(pb);
379 ff_mov_lang_to_iso639(langcode, language);
382 str_size = atom.size;
384 if (c->export_all && !key) {
385 snprintf(tmp_key, 5, "%.4s", (char*)&atom.type);
391 if (atom.size < 0 || str_size >= INT_MAX/2)
392 return AVERROR_INVALIDDATA;
394 // worst-case requirement for output string in case of utf8 coded input
395 str_size_alloc = (raw ? str_size : str_size * 2) + 1;
396 str = av_mallocz(str_size_alloc);
398 return AVERROR(ENOMEM);
401 parse(c, pb, str_size, key);
403 if (!raw && (data_type == 3 || (data_type == 0 && (langcode < 0x400 || langcode == 0x7fff)))) { // MAC Encoded
404 mov_read_mac_string(c, pb, str_size, str, str_size_alloc);
406 int ret = avio_read(pb, str, str_size);
407 if (ret != str_size) {
409 return ret < 0 ? ret : AVERROR_INVALIDDATA;
413 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
414 av_dict_set(&c->fc->metadata, key, str, 0);
415 if (*language && strcmp(language, "und")) {
416 snprintf(key2, sizeof(key2), "%s-%s", key, language);
417 av_dict_set(&c->fc->metadata, key2, str, 0);
420 av_log(c->fc, AV_LOG_TRACE, "lang \"%3s\" ", language);
421 av_log(c->fc, AV_LOG_TRACE, "tag \"%s\" value \"%s\" atom \"%.4s\" %d %"PRId64"\n",
422 key, str, (char*)&atom.type, str_size_alloc, atom.size);
428 static int mov_read_chpl(MOVContext *c, AVIOContext *pb, MOVAtom atom)
431 int i, nb_chapters, str_len, version;
434 if ((atom.size -= 5) < 0)
437 version = avio_r8(pb);
440 avio_rb32(pb); // ???
441 nb_chapters = avio_r8(pb);
443 for (i = 0; i < nb_chapters; i++) {
447 start = avio_rb64(pb);
448 str_len = avio_r8(pb);
450 if ((atom.size -= 9+str_len) < 0)
453 if (avio_read(pb, str, str_len) != str_len)
454 return AVERROR_INVALIDDATA;
456 avpriv_new_chapter(c->fc, i, (AVRational){1,10000000}, start, AV_NOPTS_VALUE, str);
461 #define MIN_DATA_ENTRY_BOX_SIZE 12
462 static int mov_read_dref(MOVContext *c, AVIOContext *pb, MOVAtom atom)
465 MOVStreamContext *sc;
468 if (c->fc->nb_streams < 1)
470 st = c->fc->streams[c->fc->nb_streams-1];
473 avio_rb32(pb); // version + flags
474 entries = avio_rb32(pb);
475 if (entries > (atom.size - 1) / MIN_DATA_ENTRY_BOX_SIZE + 1 ||
476 entries >= UINT_MAX / sizeof(*sc->drefs))
477 return AVERROR_INVALIDDATA;
480 sc->drefs = av_mallocz(entries * sizeof(*sc->drefs));
482 return AVERROR(ENOMEM);
483 sc->drefs_count = entries;
485 for (i = 0; i < sc->drefs_count; i++) {
486 MOVDref *dref = &sc->drefs[i];
487 uint32_t size = avio_rb32(pb);
488 int64_t next = avio_tell(pb) + size - 4;
491 return AVERROR_INVALIDDATA;
493 dref->type = avio_rl32(pb);
494 avio_rb32(pb); // version + flags
495 av_log(c->fc, AV_LOG_TRACE, "type %.4s size %d\n", (char*)&dref->type, size);
497 if (dref->type == MKTAG('a','l','i','s') && size > 150) {
498 /* macintosh alias record */
499 uint16_t volume_len, len;
504 volume_len = avio_r8(pb);
505 volume_len = FFMIN(volume_len, 27);
506 if (avio_read(pb, dref->volume, 27) != 27)
507 return AVERROR_INVALIDDATA;
508 dref->volume[volume_len] = 0;
509 av_log(c->fc, AV_LOG_DEBUG, "volume %s, len %d\n", dref->volume, volume_len);
514 len = FFMIN(len, 63);
515 if (avio_read(pb, dref->filename, 63) != 63)
516 return AVERROR_INVALIDDATA;
517 dref->filename[len] = 0;
518 av_log(c->fc, AV_LOG_DEBUG, "filename %s, len %d\n", dref->filename, len);
522 /* read next level up_from_alias/down_to_target */
523 dref->nlvl_from = avio_rb16(pb);
524 dref->nlvl_to = avio_rb16(pb);
525 av_log(c->fc, AV_LOG_DEBUG, "nlvl from %d, nlvl to %d\n",
526 dref->nlvl_from, dref->nlvl_to);
530 for (type = 0; type != -1 && avio_tell(pb) < next; ) {
533 type = avio_rb16(pb);
535 av_log(c->fc, AV_LOG_DEBUG, "type %d, len %d\n", type, len);
538 if (type == 2 || type == 18) { // absolute path
540 dref->path = av_mallocz(len+1);
542 return AVERROR(ENOMEM);
543 if (avio_read(pb, dref->path, len) != len) {
544 av_freep(&dref->path);
545 return AVERROR_INVALIDDATA;
547 if (type == 18) // no additional processing needed
549 if (len > volume_len && !strncmp(dref->path, dref->volume, volume_len)) {
551 memmove(dref->path, dref->path+volume_len, len);
554 for (j = 0; j < len; j++)
555 if (dref->path[j] == ':')
557 av_log(c->fc, AV_LOG_DEBUG, "path %s\n", dref->path);
558 } else if (type == 0) { // directory name
560 dref->dir = av_malloc(len+1);
562 return AVERROR(ENOMEM);
563 if (avio_read(pb, dref->dir, len) != len) {
564 av_freep(&dref->dir);
565 return AVERROR_INVALIDDATA;
568 for (j = 0; j < len; j++)
569 if (dref->dir[j] == ':')
571 av_log(c->fc, AV_LOG_DEBUG, "dir %s\n", dref->dir);
576 avio_seek(pb, next, SEEK_SET);
581 static int mov_read_hdlr(MOVContext *c, AVIOContext *pb, MOVAtom atom)
585 uint32_t av_unused ctype;
589 if (c->fc->nb_streams < 1) // meta before first trak
592 st = c->fc->streams[c->fc->nb_streams-1];
594 avio_r8(pb); /* version */
595 avio_rb24(pb); /* flags */
598 ctype = avio_rl32(pb);
599 type = avio_rl32(pb); /* component subtype */
601 av_log(c->fc, AV_LOG_TRACE, "ctype= %.4s (0x%08x)\n", (char*)&ctype, ctype);
602 av_log(c->fc, AV_LOG_TRACE, "stype= %.4s\n", (char*)&type);
604 if (type == MKTAG('v','i','d','e'))
605 st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
606 else if (type == MKTAG('s','o','u','n'))
607 st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
608 else if (type == MKTAG('m','1','a',' '))
609 st->codec->codec_id = AV_CODEC_ID_MP2;
610 else if ((type == MKTAG('s','u','b','p')) || (type == MKTAG('c','l','c','p')))
611 st->codec->codec_type = AVMEDIA_TYPE_SUBTITLE;
613 avio_rb32(pb); /* component manufacture */
614 avio_rb32(pb); /* component flags */
615 avio_rb32(pb); /* component flags mask */
617 title_size = atom.size - 24;
618 if (title_size > 0) {
619 title_str = av_malloc(title_size + 1); /* Add null terminator */
621 return AVERROR(ENOMEM);
622 if (avio_read(pb, title_str, title_size) != title_size) {
623 av_freep(&title_str);
624 return AVERROR_INVALIDDATA;
626 title_str[title_size] = 0;
628 int off = (!c->isom && title_str[0] == title_size - 1);
629 av_dict_set(&st->metadata, "handler_name", title_str + off, 0);
631 av_freep(&title_str);
637 int ff_mov_read_esds(AVFormatContext *fc, AVIOContext *pb)
642 if (fc->nb_streams < 1)
644 st = fc->streams[fc->nb_streams-1];
646 avio_rb32(pb); /* version + flags */
647 ff_mp4_read_descr(fc, pb, &tag);
648 if (tag == MP4ESDescrTag) {
649 ff_mp4_parse_es_descr(pb, NULL);
651 avio_rb16(pb); /* ID */
653 ff_mp4_read_descr(fc, pb, &tag);
654 if (tag == MP4DecConfigDescrTag)
655 ff_mp4_read_dec_config_descr(fc, st, pb);
659 static int mov_read_esds(MOVContext *c, AVIOContext *pb, MOVAtom atom)
661 return ff_mov_read_esds(c->fc, pb);
664 static int mov_read_dac3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
667 enum AVAudioServiceType *ast;
668 int ac3info, acmod, lfeon, bsmod;
670 if (c->fc->nb_streams < 1)
672 st = c->fc->streams[c->fc->nb_streams-1];
674 ast = (enum AVAudioServiceType*)ff_stream_new_side_data(st, AV_PKT_DATA_AUDIO_SERVICE_TYPE,
677 return AVERROR(ENOMEM);
679 ac3info = avio_rb24(pb);
680 bsmod = (ac3info >> 14) & 0x7;
681 acmod = (ac3info >> 11) & 0x7;
682 lfeon = (ac3info >> 10) & 0x1;
683 st->codec->channels = ((int[]){2,1,2,3,3,4,4,5})[acmod] + lfeon;
684 st->codec->channel_layout = avpriv_ac3_channel_layout_tab[acmod];
686 st->codec->channel_layout |= AV_CH_LOW_FREQUENCY;
688 if (st->codec->channels > 1 && bsmod == 0x7)
689 *ast = AV_AUDIO_SERVICE_TYPE_KARAOKE;
691 st->codec->audio_service_type = *ast;
696 static int mov_read_dec3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
699 enum AVAudioServiceType *ast;
700 int eac3info, acmod, lfeon, bsmod;
702 if (c->fc->nb_streams < 1)
704 st = c->fc->streams[c->fc->nb_streams-1];
706 ast = (enum AVAudioServiceType*)ff_stream_new_side_data(st, AV_PKT_DATA_AUDIO_SERVICE_TYPE,
709 return AVERROR(ENOMEM);
711 /* No need to parse fields for additional independent substreams and its
712 * associated dependent substreams since libavcodec's E-AC-3 decoder
713 * does not support them yet. */
714 avio_rb16(pb); /* data_rate and num_ind_sub */
715 eac3info = avio_rb24(pb);
716 bsmod = (eac3info >> 12) & 0x1f;
717 acmod = (eac3info >> 9) & 0x7;
718 lfeon = (eac3info >> 8) & 0x1;
719 st->codec->channel_layout = avpriv_ac3_channel_layout_tab[acmod];
721 st->codec->channel_layout |= AV_CH_LOW_FREQUENCY;
722 st->codec->channels = av_get_channel_layout_nb_channels(st->codec->channel_layout);
724 if (st->codec->channels > 1 && bsmod == 0x7)
725 *ast = AV_AUDIO_SERVICE_TYPE_KARAOKE;
727 st->codec->audio_service_type = *ast;
732 static int mov_read_chan(MOVContext *c, AVIOContext *pb, MOVAtom atom)
736 if (c->fc->nb_streams < 1)
738 st = c->fc->streams[c->fc->nb_streams-1];
743 /* skip version and flags */
746 ff_mov_read_chan(c->fc, pb, st, atom.size - 4);
751 static int mov_read_wfex(MOVContext *c, AVIOContext *pb, MOVAtom atom)
756 if (c->fc->nb_streams < 1)
758 st = c->fc->streams[c->fc->nb_streams-1];
760 if ((ret = ff_get_wav_header(pb, st->codec, atom.size, 0)) < 0)
761 av_log(c->fc, AV_LOG_WARNING, "get_wav_header failed\n");
766 static int mov_read_pasp(MOVContext *c, AVIOContext *pb, MOVAtom atom)
768 const int num = avio_rb32(pb);
769 const int den = avio_rb32(pb);
772 if (c->fc->nb_streams < 1)
774 st = c->fc->streams[c->fc->nb_streams-1];
776 if ((st->sample_aspect_ratio.den != 1 || st->sample_aspect_ratio.num) && // default
777 (den != st->sample_aspect_ratio.den || num != st->sample_aspect_ratio.num)) {
778 av_log(c->fc, AV_LOG_WARNING,
779 "sample aspect ratio already set to %d:%d, ignoring 'pasp' atom (%d:%d)\n",
780 st->sample_aspect_ratio.num, st->sample_aspect_ratio.den,
782 } else if (den != 0) {
783 av_reduce(&st->sample_aspect_ratio.num, &st->sample_aspect_ratio.den,
789 /* this atom contains actual media data */
790 static int mov_read_mdat(MOVContext *c, AVIOContext *pb, MOVAtom atom)
792 if (atom.size == 0) /* wrong one (MP4) */
795 return 0; /* now go for moov */
798 /* read major brand, minor version and compatible brands and store them as metadata */
799 static int mov_read_ftyp(MOVContext *c, AVIOContext *pb, MOVAtom atom)
803 char* comp_brands_str;
804 uint8_t type[5] = {0};
806 if (avio_read(pb, type, 4) != 4)
807 return AVERROR_INVALIDDATA;
808 if (strcmp(type, "qt "))
810 av_log(c->fc, AV_LOG_DEBUG, "ISO: File Type Major Brand: %.4s\n",(char *)&type);
811 av_dict_set(&c->fc->metadata, "major_brand", type, 0);
812 minor_ver = avio_rb32(pb); /* minor version */
813 av_dict_set_int(&c->fc->metadata, "minor_version", minor_ver, 0);
815 comp_brand_size = atom.size - 8;
816 if (comp_brand_size < 0)
817 return AVERROR_INVALIDDATA;
818 comp_brands_str = av_malloc(comp_brand_size + 1); /* Add null terminator */
819 if (!comp_brands_str)
820 return AVERROR(ENOMEM);
821 if (avio_read(pb, comp_brands_str, comp_brand_size) != comp_brand_size) {
822 av_freep(&comp_brands_str);
823 return AVERROR_INVALIDDATA;
825 comp_brands_str[comp_brand_size] = 0;
826 av_dict_set(&c->fc->metadata, "compatible_brands", comp_brands_str, 0);
827 av_freep(&comp_brands_str);
832 /* this atom should contain all header atoms */
833 static int mov_read_moov(MOVContext *c, AVIOContext *pb, MOVAtom atom)
838 av_log(c->fc, AV_LOG_WARNING, "Found duplicated MOOV Atom. Skipped it\n");
839 avio_skip(pb, atom.size);
843 if ((ret = mov_read_default(c, pb, atom)) < 0)
845 /* we parsed the 'moov' atom, we can terminate the parsing as soon as we find the 'mdat' */
846 /* so we don't parse the whole file if over a network */
848 return 0; /* now go for mdat */
851 static int mov_read_moof(MOVContext *c, AVIOContext *pb, MOVAtom atom)
853 if (!c->has_looked_for_mfra && c->use_mfra_for > 0) {
854 c->has_looked_for_mfra = 1;
857 av_log(c->fc, AV_LOG_VERBOSE, "stream has moof boxes, will look "
859 if ((ret = mov_read_mfra(c, pb)) < 0) {
860 av_log(c->fc, AV_LOG_VERBOSE, "found a moof box but failed to "
861 "read the mfra (may be a live ismv)\n");
864 av_log(c->fc, AV_LOG_VERBOSE, "found a moof box but stream is not "
865 "seekable, can not look for mfra\n");
868 c->fragment.moof_offset = c->fragment.implicit_offset = avio_tell(pb) - 8;
869 av_log(c->fc, AV_LOG_TRACE, "moof offset %"PRIx64"\n", c->fragment.moof_offset);
870 return mov_read_default(c, pb, atom);
873 static void mov_metadata_creation_time(AVDictionary **metadata, int64_t time)
877 struct tm *ptm, tmbuf;
879 if(time >= 2082844800)
880 time -= 2082844800; /* seconds between 1904-01-01 and Epoch */
882 ptm = gmtime_r(&timet, &tmbuf);
884 if (strftime(buffer, sizeof(buffer), "%Y-%m-%d %H:%M:%S", ptm))
885 av_dict_set(metadata, "creation_time", buffer, 0);
889 static int mov_read_mdhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
892 MOVStreamContext *sc;
894 char language[4] = {0};
896 int64_t creation_time;
898 if (c->fc->nb_streams < 1)
900 st = c->fc->streams[c->fc->nb_streams-1];
903 if (sc->time_scale) {
904 av_log(c->fc, AV_LOG_ERROR, "Multiple mdhd?\n");
905 return AVERROR_INVALIDDATA;
908 version = avio_r8(pb);
910 avpriv_request_sample(c->fc, "Version %d", version);
911 return AVERROR_PATCHWELCOME;
913 avio_rb24(pb); /* flags */
915 creation_time = avio_rb64(pb);
918 creation_time = avio_rb32(pb);
919 avio_rb32(pb); /* modification time */
921 mov_metadata_creation_time(&st->metadata, creation_time);
923 sc->time_scale = avio_rb32(pb);
924 st->duration = (version == 1) ? avio_rb64(pb) : avio_rb32(pb); /* duration */
926 lang = avio_rb16(pb); /* language */
927 if (ff_mov_lang_to_iso639(lang, language))
928 av_dict_set(&st->metadata, "language", language, 0);
929 avio_rb16(pb); /* quality */
934 static int mov_read_mvhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
936 int64_t creation_time;
937 int version = avio_r8(pb); /* version */
938 avio_rb24(pb); /* flags */
941 creation_time = avio_rb64(pb);
944 creation_time = avio_rb32(pb);
945 avio_rb32(pb); /* modification time */
947 mov_metadata_creation_time(&c->fc->metadata, creation_time);
948 c->time_scale = avio_rb32(pb); /* time scale */
950 av_log(c->fc, AV_LOG_TRACE, "time scale = %i\n", c->time_scale);
952 c->duration = (version == 1) ? avio_rb64(pb) : avio_rb32(pb); /* duration */
953 // set the AVCodecContext duration because the duration of individual tracks
955 if (c->time_scale > 0 && !c->trex_data)
956 c->fc->duration = av_rescale(c->duration, AV_TIME_BASE, c->time_scale);
957 avio_rb32(pb); /* preferred scale */
959 avio_rb16(pb); /* preferred volume */
961 avio_skip(pb, 10); /* reserved */
963 avio_skip(pb, 36); /* display matrix */
965 avio_rb32(pb); /* preview time */
966 avio_rb32(pb); /* preview duration */
967 avio_rb32(pb); /* poster time */
968 avio_rb32(pb); /* selection time */
969 avio_rb32(pb); /* selection duration */
970 avio_rb32(pb); /* current time */
971 avio_rb32(pb); /* next track ID */
975 static int mov_read_enda(MOVContext *c, AVIOContext *pb, MOVAtom atom)
980 if (c->fc->nb_streams < 1)
982 st = c->fc->streams[c->fc->nb_streams-1];
984 little_endian = avio_rb16(pb) & 0xFF;
985 av_log(c->fc, AV_LOG_TRACE, "enda %d\n", little_endian);
986 if (little_endian == 1) {
987 switch (st->codec->codec_id) {
988 case AV_CODEC_ID_PCM_S24BE:
989 st->codec->codec_id = AV_CODEC_ID_PCM_S24LE;
991 case AV_CODEC_ID_PCM_S32BE:
992 st->codec->codec_id = AV_CODEC_ID_PCM_S32LE;
994 case AV_CODEC_ID_PCM_F32BE:
995 st->codec->codec_id = AV_CODEC_ID_PCM_F32LE;
997 case AV_CODEC_ID_PCM_F64BE:
998 st->codec->codec_id = AV_CODEC_ID_PCM_F64LE;
1007 static int mov_read_colr(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1010 char color_parameter_type[5] = { 0 };
1011 int color_primaries, color_trc, color_matrix;
1013 if (c->fc->nb_streams < 1)
1015 st = c->fc->streams[c->fc->nb_streams - 1];
1017 if (avio_read(pb, color_parameter_type, 4) != 4)
1018 return AVERROR_INVALIDDATA;
1019 if (strncmp(color_parameter_type, "nclx", 4) &&
1020 strncmp(color_parameter_type, "nclc", 4)) {
1021 av_log(c->fc, AV_LOG_WARNING, "unsupported color_parameter_type %s\n",
1022 color_parameter_type);
1026 color_primaries = avio_rb16(pb);
1027 color_trc = avio_rb16(pb);
1028 color_matrix = avio_rb16(pb);
1030 av_log(c->fc, AV_LOG_TRACE,
1031 "%s: pri %d trc %d matrix %d",
1032 color_parameter_type, color_primaries, color_trc, color_matrix);
1034 if (!strncmp(color_parameter_type, "nclx", 4)) {
1035 uint8_t color_range = avio_r8(pb) >> 7;
1036 av_log(c->fc, AV_LOG_TRACE, " full %"PRIu8"", color_range);
1038 st->codec->color_range = AVCOL_RANGE_JPEG;
1040 st->codec->color_range = AVCOL_RANGE_MPEG;
1041 /* 14496-12 references JPEG XR specs (rather than the more complete
1042 * 23001-8) so some adjusting is required */
1043 if (color_primaries >= AVCOL_PRI_FILM)
1044 color_primaries = AVCOL_PRI_UNSPECIFIED;
1045 if ((color_trc >= AVCOL_TRC_LINEAR &&
1046 color_trc <= AVCOL_TRC_LOG_SQRT) ||
1047 color_trc >= AVCOL_TRC_BT2020_10)
1048 color_trc = AVCOL_TRC_UNSPECIFIED;
1049 if (color_matrix >= AVCOL_SPC_BT2020_NCL)
1050 color_matrix = AVCOL_SPC_UNSPECIFIED;
1051 st->codec->color_primaries = color_primaries;
1052 st->codec->color_trc = color_trc;
1053 st->codec->colorspace = color_matrix;
1054 } else if (!strncmp(color_parameter_type, "nclc", 4)) {
1055 /* color primaries, Table 4-4 */
1056 switch (color_primaries) {
1057 case 1: st->codec->color_primaries = AVCOL_PRI_BT709; break;
1058 case 5: st->codec->color_primaries = AVCOL_PRI_SMPTE170M; break;
1059 case 6: st->codec->color_primaries = AVCOL_PRI_SMPTE240M; break;
1061 /* color transfer, Table 4-5 */
1062 switch (color_trc) {
1063 case 1: st->codec->color_trc = AVCOL_TRC_BT709; break;
1064 case 7: st->codec->color_trc = AVCOL_TRC_SMPTE240M; break;
1066 /* color matrix, Table 4-6 */
1067 switch (color_matrix) {
1068 case 1: st->codec->colorspace = AVCOL_SPC_BT709; break;
1069 case 6: st->codec->colorspace = AVCOL_SPC_BT470BG; break;
1070 case 7: st->codec->colorspace = AVCOL_SPC_SMPTE240M; break;
1073 av_log(c->fc, AV_LOG_TRACE, "\n");
1078 static int mov_read_fiel(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1081 unsigned mov_field_order;
1082 enum AVFieldOrder decoded_field_order = AV_FIELD_UNKNOWN;
1084 if (c->fc->nb_streams < 1) // will happen with jp2 files
1086 st = c->fc->streams[c->fc->nb_streams-1];
1088 return AVERROR_INVALIDDATA;
1089 mov_field_order = avio_rb16(pb);
1090 if ((mov_field_order & 0xFF00) == 0x0100)
1091 decoded_field_order = AV_FIELD_PROGRESSIVE;
1092 else if ((mov_field_order & 0xFF00) == 0x0200) {
1093 switch (mov_field_order & 0xFF) {
1094 case 0x01: decoded_field_order = AV_FIELD_TT;
1096 case 0x06: decoded_field_order = AV_FIELD_BB;
1098 case 0x09: decoded_field_order = AV_FIELD_TB;
1100 case 0x0E: decoded_field_order = AV_FIELD_BT;
1104 if (decoded_field_order == AV_FIELD_UNKNOWN && mov_field_order) {
1105 av_log(NULL, AV_LOG_ERROR, "Unknown MOV field order 0x%04x\n", mov_field_order);
1107 st->codec->field_order = decoded_field_order;
1112 static int mov_realloc_extradata(AVCodecContext *codec, MOVAtom atom)
1115 uint64_t size = (uint64_t)codec->extradata_size + atom.size + 8 + FF_INPUT_BUFFER_PADDING_SIZE;
1116 if (size > INT_MAX || (uint64_t)atom.size > INT_MAX)
1117 return AVERROR_INVALIDDATA;
1118 if ((err = av_reallocp(&codec->extradata, size)) < 0) {
1119 codec->extradata_size = 0;
1122 codec->extradata_size = size - FF_INPUT_BUFFER_PADDING_SIZE;
1126 /* Read a whole atom into the extradata return the size of the atom read, possibly truncated if != atom.size */
1127 static int64_t mov_read_atom_into_extradata(MOVContext *c, AVIOContext *pb, MOVAtom atom,
1128 AVCodecContext *codec, uint8_t *buf)
1130 int64_t result = atom.size;
1133 AV_WB32(buf , atom.size + 8);
1134 AV_WL32(buf + 4, atom.type);
1135 err = avio_read(pb, buf + 8, atom.size);
1137 codec->extradata_size -= atom.size;
1139 } else if (err < atom.size) {
1140 av_log(c->fc, AV_LOG_WARNING, "truncated extradata\n");
1141 codec->extradata_size -= atom.size - err;
1144 memset(buf + 8 + err, 0, FF_INPUT_BUFFER_PADDING_SIZE);
1148 /* FIXME modify qdm2/svq3/h264 decoders to take full atom as extradata */
1149 static int mov_read_extradata(MOVContext *c, AVIOContext *pb, MOVAtom atom,
1150 enum AVCodecID codec_id)
1153 uint64_t original_size;
1156 if (c->fc->nb_streams < 1) // will happen with jp2 files
1158 st = c->fc->streams[c->fc->nb_streams-1];
1160 if (st->codec->codec_id != codec_id)
1161 return 0; /* unexpected codec_id - don't mess with extradata */
1163 original_size = st->codec->extradata_size;
1164 err = mov_realloc_extradata(st->codec, atom);
1168 err = mov_read_atom_into_extradata(c, pb, atom, st->codec, st->codec->extradata + original_size);
1171 return 0; // Note: this is the original behavior to ignore truncation.
1174 /* wrapper functions for reading ALAC/AVS/MJPEG/MJPEG2000 extradata atoms only for those codecs */
1175 static int mov_read_alac(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1177 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_ALAC);
1180 static int mov_read_avss(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1182 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_AVS);
1185 static int mov_read_jp2h(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1187 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_JPEG2000);
1190 static int mov_read_dpxe(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1192 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_R10K);
1195 static int mov_read_avid(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1197 int ret = mov_read_extradata(c, pb, atom, AV_CODEC_ID_AVUI);
1199 ret = mov_read_extradata(c, pb, atom, AV_CODEC_ID_DNXHD);
1203 static int mov_read_targa_y216(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1205 int ret = mov_read_extradata(c, pb, atom, AV_CODEC_ID_TARGA_Y216);
1207 if (!ret && c->fc->nb_streams >= 1) {
1208 AVCodecContext *avctx = c->fc->streams[c->fc->nb_streams-1]->codec;
1209 if (avctx->extradata_size >= 40) {
1210 avctx->height = AV_RB16(&avctx->extradata[36]);
1211 avctx->width = AV_RB16(&avctx->extradata[38]);
1217 static int mov_read_ares(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1219 if (c->fc->nb_streams >= 1) {
1220 AVCodecContext *codec = c->fc->streams[c->fc->nb_streams-1]->codec;
1221 if (codec->codec_tag == MKTAG('A', 'V', 'i', 'n') &&
1222 codec->codec_id == AV_CODEC_ID_H264 &&
1225 /* For AVID AVCI50, force width of 1440 to be able to select the correct SPS and PPS */
1226 if (avio_rb16(pb) == 0xd4d)
1227 codec->width = 1440;
1232 return mov_read_avid(c, pb, atom);
1235 static int mov_read_aclr(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1239 uint64_t original_size;
1240 if (c->fc->nb_streams >= 1) {
1241 AVCodecContext *codec = c->fc->streams[c->fc->nb_streams-1]->codec;
1242 if (codec->codec_id == AV_CODEC_ID_H264)
1244 if (atom.size == 16) {
1245 original_size = codec->extradata_size;
1246 ret = mov_realloc_extradata(codec, atom);
1248 length = mov_read_atom_into_extradata(c, pb, atom, codec, codec->extradata + original_size);
1249 if (length == atom.size) {
1250 const uint8_t range_value = codec->extradata[original_size + 19];
1251 switch (range_value) {
1253 codec->color_range = AVCOL_RANGE_MPEG;
1256 codec->color_range = AVCOL_RANGE_JPEG;
1259 av_log(c, AV_LOG_WARNING, "ignored unknown aclr value (%d)\n", range_value);
1262 av_dlog(c, "color_range: %d\n", codec->color_range);
1264 /* For some reason the whole atom was not added to the extradata */
1265 av_log(c, AV_LOG_ERROR, "aclr not decoded - incomplete atom\n");
1268 av_log(c, AV_LOG_ERROR, "aclr not decoded - unable to add atom to extradata\n");
1271 av_log(c, AV_LOG_WARNING, "aclr not decoded - unexpected size %"PRId64"\n", atom.size);
1278 static int mov_read_svq3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1280 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_SVQ3);
1283 static int mov_read_wave(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1287 if (c->fc->nb_streams < 1)
1289 st = c->fc->streams[c->fc->nb_streams-1];
1291 if ((uint64_t)atom.size > (1<<30))
1292 return AVERROR_INVALIDDATA;
1294 if (st->codec->codec_id == AV_CODEC_ID_QDM2 ||
1295 st->codec->codec_id == AV_CODEC_ID_QDMC ||
1296 st->codec->codec_id == AV_CODEC_ID_SPEEX) {
1297 // pass all frma atom to codec, needed at least for QDMC and QDM2
1298 av_freep(&st->codec->extradata);
1299 if (ff_get_extradata(st->codec, pb, atom.size) < 0)
1300 return AVERROR(ENOMEM);
1301 } else if (atom.size > 8) { /* to read frma, esds atoms */
1303 if ((ret = mov_read_default(c, pb, atom)) < 0)
1306 avio_skip(pb, atom.size);
1311 * This function reads atom content and puts data in extradata without tag
1312 * nor size unlike mov_read_extradata.
1314 static int mov_read_glbl(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1318 if (c->fc->nb_streams < 1)
1320 st = c->fc->streams[c->fc->nb_streams-1];
1322 if ((uint64_t)atom.size > (1<<30))
1323 return AVERROR_INVALIDDATA;
1325 if (atom.size >= 10) {
1326 // Broken files created by legacy versions of libavformat will
1327 // wrap a whole fiel atom inside of a glbl atom.
1328 unsigned size = avio_rb32(pb);
1329 unsigned type = avio_rl32(pb);
1330 avio_seek(pb, -8, SEEK_CUR);
1331 if (type == MKTAG('f','i','e','l') && size == atom.size)
1332 return mov_read_default(c, pb, atom);
1334 if (st->codec->extradata_size > 1 && st->codec->extradata) {
1335 av_log(c, AV_LOG_WARNING, "ignoring multiple glbl\n");
1338 av_freep(&st->codec->extradata);
1339 if (ff_get_extradata(st->codec, pb, atom.size) < 0)
1340 return AVERROR(ENOMEM);
1345 static int mov_read_dvc1(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1348 uint8_t profile_level;
1351 if (c->fc->nb_streams < 1)
1353 st = c->fc->streams[c->fc->nb_streams-1];
1355 if (atom.size >= (1<<28) || atom.size < 7)
1356 return AVERROR_INVALIDDATA;
1358 profile_level = avio_r8(pb);
1359 if ((profile_level & 0xf0) != 0xc0)
1362 avio_seek(pb, 6, SEEK_CUR);
1363 av_freep(&st->codec->extradata);
1364 if ((ret = ff_get_extradata(st->codec, pb, atom.size - 7)) < 0)
1371 * An strf atom is a BITMAPINFOHEADER struct. This struct is 40 bytes itself,
1372 * but can have extradata appended at the end after the 40 bytes belonging
1375 static int mov_read_strf(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1379 if (c->fc->nb_streams < 1)
1381 if (atom.size <= 40)
1383 st = c->fc->streams[c->fc->nb_streams-1];
1385 if ((uint64_t)atom.size > (1<<30))
1386 return AVERROR_INVALIDDATA;
1389 av_freep(&st->codec->extradata);
1390 if (ff_get_extradata(st->codec, pb, atom.size - 40) < 0)
1391 return AVERROR(ENOMEM);
1395 static int mov_read_stco(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1398 MOVStreamContext *sc;
1399 unsigned int i, entries;
1401 if (c->fc->nb_streams < 1)
1403 st = c->fc->streams[c->fc->nb_streams-1];
1406 avio_r8(pb); /* version */
1407 avio_rb24(pb); /* flags */
1409 entries = avio_rb32(pb);
1414 if (sc->chunk_offsets)
1415 av_log(c->fc, AV_LOG_WARNING, "Duplicated STCO atom\n");
1416 av_free(sc->chunk_offsets);
1417 sc->chunk_count = 0;
1418 sc->chunk_offsets = av_malloc_array(entries, sizeof(*sc->chunk_offsets));
1419 if (!sc->chunk_offsets)
1420 return AVERROR(ENOMEM);
1421 sc->chunk_count = entries;
1423 if (atom.type == MKTAG('s','t','c','o'))
1424 for (i = 0; i < entries && !pb->eof_reached; i++)
1425 sc->chunk_offsets[i] = avio_rb32(pb);
1426 else if (atom.type == MKTAG('c','o','6','4'))
1427 for (i = 0; i < entries && !pb->eof_reached; i++)
1428 sc->chunk_offsets[i] = avio_rb64(pb);
1430 return AVERROR_INVALIDDATA;
1432 sc->chunk_count = i;
1434 if (pb->eof_reached)
1441 * Compute codec id for 'lpcm' tag.
1442 * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
1444 enum AVCodecID ff_mov_get_lpcm_codec_id(int bps, int flags)
1451 return ff_get_pcm_codec_id(bps, flags & 1, flags & 2, flags & 4 ? -1 : 0);
1454 static int mov_codec_id(AVStream *st, uint32_t format)
1456 int id = ff_codec_get_id(ff_codec_movaudio_tags, format);
1459 ((format & 0xFFFF) == 'm' + ('s' << 8) ||
1460 (format & 0xFFFF) == 'T' + ('S' << 8)))
1461 id = ff_codec_get_id(ff_codec_wav_tags, av_bswap32(format) & 0xFFFF);
1463 if (st->codec->codec_type != AVMEDIA_TYPE_VIDEO && id > 0) {
1464 st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
1465 } else if (st->codec->codec_type != AVMEDIA_TYPE_AUDIO &&
1466 /* skip old asf mpeg4 tag */
1467 format && format != MKTAG('m','p','4','s')) {
1468 id = ff_codec_get_id(ff_codec_movvideo_tags, format);
1470 id = ff_codec_get_id(ff_codec_bmp_tags, format);
1472 st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
1473 else if (st->codec->codec_type == AVMEDIA_TYPE_DATA ||
1474 (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE &&
1475 st->codec->codec_id == AV_CODEC_ID_NONE)) {
1476 id = ff_codec_get_id(ff_codec_movsubtitle_tags, format);
1478 st->codec->codec_type = AVMEDIA_TYPE_SUBTITLE;
1482 st->codec->codec_tag = format;
1487 static void mov_parse_stsd_video(MOVContext *c, AVIOContext *pb,
1488 AVStream *st, MOVStreamContext *sc)
1490 uint8_t codec_name[32];
1491 unsigned int color_depth, len, j;
1492 int color_greyscale;
1495 avio_rb16(pb); /* version */
1496 avio_rb16(pb); /* revision level */
1497 avio_rb32(pb); /* vendor */
1498 avio_rb32(pb); /* temporal quality */
1499 avio_rb32(pb); /* spatial quality */
1501 st->codec->width = avio_rb16(pb); /* width */
1502 st->codec->height = avio_rb16(pb); /* height */
1504 avio_rb32(pb); /* horiz resolution */
1505 avio_rb32(pb); /* vert resolution */
1506 avio_rb32(pb); /* data size, always 0 */
1507 avio_rb16(pb); /* frames per samples */
1509 len = avio_r8(pb); /* codec name, pascal string */
1512 mov_read_mac_string(c, pb, len, codec_name, sizeof(codec_name));
1514 avio_skip(pb, 31 - len);
1517 av_dict_set(&st->metadata, "encoder", codec_name, 0);
1519 /* codec_tag YV12 triggers an UV swap in rawdec.c */
1520 if (!memcmp(codec_name, "Planar Y'CbCr 8-bit 4:2:0", 25)) {
1521 st->codec->codec_tag = MKTAG('I', '4', '2', '0');
1522 st->codec->width &= ~1;
1523 st->codec->height &= ~1;
1525 /* Flash Media Server uses tag H263 with Sorenson Spark */
1526 if (st->codec->codec_tag == MKTAG('H','2','6','3') &&
1527 !memcmp(codec_name, "Sorenson H263", 13))
1528 st->codec->codec_id = AV_CODEC_ID_FLV1;
1530 st->codec->bits_per_coded_sample = avio_rb16(pb); /* depth */
1531 color_table_id = avio_rb16(pb); /* colortable id */
1532 av_log(c->fc, AV_LOG_TRACE, "depth %d, ctab id %d\n",
1533 st->codec->bits_per_coded_sample, color_table_id);
1534 /* figure out the palette situation */
1535 color_depth = st->codec->bits_per_coded_sample & 0x1F;
1536 color_greyscale = st->codec->bits_per_coded_sample & 0x20;
1537 /* Do not create a greyscale palette for cinepak */
1538 if (color_greyscale && st->codec->codec_id == AV_CODEC_ID_CINEPAK)
1541 /* if the depth is 2, 4, or 8 bpp, file is palettized */
1542 if ((color_depth == 2) || (color_depth == 4) || (color_depth == 8)) {
1543 /* for palette traversal */
1544 unsigned int color_start, color_count, color_end;
1545 unsigned char a, r, g, b;
1547 if (color_greyscale) {
1548 int color_index, color_dec;
1549 /* compute the greyscale palette */
1550 st->codec->bits_per_coded_sample = color_depth;
1551 color_count = 1 << color_depth;
1553 color_dec = 256 / (color_count - 1);
1554 for (j = 0; j < color_count; j++) {
1555 r = g = b = color_index;
1556 sc->palette[j] = (0xFFU << 24) | (r << 16) | (g << 8) | (b);
1557 color_index -= color_dec;
1558 if (color_index < 0)
1561 } else if (color_table_id) {
1562 const uint8_t *color_table;
1563 /* if flag bit 3 is set, use the default palette */
1564 color_count = 1 << color_depth;
1565 if (color_depth == 2)
1566 color_table = ff_qt_default_palette_4;
1567 else if (color_depth == 4)
1568 color_table = ff_qt_default_palette_16;
1570 color_table = ff_qt_default_palette_256;
1572 for (j = 0; j < color_count; j++) {
1573 r = color_table[j * 3 + 0];
1574 g = color_table[j * 3 + 1];
1575 b = color_table[j * 3 + 2];
1576 sc->palette[j] = (0xFFU << 24) | (r << 16) | (g << 8) | (b);
1579 /* load the palette from the file */
1580 color_start = avio_rb32(pb);
1581 color_count = avio_rb16(pb);
1582 color_end = avio_rb16(pb);
1583 if ((color_start <= 255) && (color_end <= 255)) {
1584 for (j = color_start; j <= color_end; j++) {
1585 /* each A, R, G, or B component is 16 bits;
1586 * only use the top 8 bits */
1595 sc->palette[j] = (a << 24 ) | (r << 16) | (g << 8) | (b);
1599 sc->has_palette = 1;
1603 static void mov_parse_stsd_audio(MOVContext *c, AVIOContext *pb,
1604 AVStream *st, MOVStreamContext *sc)
1606 int bits_per_sample, flags;
1607 uint16_t version = avio_rb16(pb);
1608 AVDictionaryEntry *compatible_brands = av_dict_get(c->fc->metadata, "compatible_brands", NULL, AV_DICT_MATCH_CASE);
1610 avio_rb16(pb); /* revision level */
1611 avio_rb32(pb); /* vendor */
1613 st->codec->channels = avio_rb16(pb); /* channel count */
1614 st->codec->bits_per_coded_sample = avio_rb16(pb); /* sample size */
1615 av_log(c->fc, AV_LOG_TRACE, "audio channels %d\n", st->codec->channels);
1617 sc->audio_cid = avio_rb16(pb);
1618 avio_rb16(pb); /* packet size = 0 */
1620 st->codec->sample_rate = ((avio_rb32(pb) >> 16));
1622 // Read QT version 1 fields. In version 0 these do not exist.
1623 av_log(c->fc, AV_LOG_TRACE, "version =%d, isom =%d\n", version, c->isom);
1625 (compatible_brands && strstr(compatible_brands->value, "qt "))) {
1628 sc->samples_per_frame = avio_rb32(pb);
1629 avio_rb32(pb); /* bytes per packet */
1630 sc->bytes_per_frame = avio_rb32(pb);
1631 avio_rb32(pb); /* bytes per sample */
1632 } else if (version == 2) {
1633 avio_rb32(pb); /* sizeof struct only */
1634 st->codec->sample_rate = av_int2double(avio_rb64(pb));
1635 st->codec->channels = avio_rb32(pb);
1636 avio_rb32(pb); /* always 0x7F000000 */
1637 st->codec->bits_per_coded_sample = avio_rb32(pb);
1639 flags = avio_rb32(pb); /* lpcm format specific flag */
1640 sc->bytes_per_frame = avio_rb32(pb);
1641 sc->samples_per_frame = avio_rb32(pb);
1642 if (st->codec->codec_tag == MKTAG('l','p','c','m'))
1643 st->codec->codec_id =
1644 ff_mov_get_lpcm_codec_id(st->codec->bits_per_coded_sample,
1649 switch (st->codec->codec_id) {
1650 case AV_CODEC_ID_PCM_S8:
1651 case AV_CODEC_ID_PCM_U8:
1652 if (st->codec->bits_per_coded_sample == 16)
1653 st->codec->codec_id = AV_CODEC_ID_PCM_S16BE;
1655 case AV_CODEC_ID_PCM_S16LE:
1656 case AV_CODEC_ID_PCM_S16BE:
1657 if (st->codec->bits_per_coded_sample == 8)
1658 st->codec->codec_id = AV_CODEC_ID_PCM_S8;
1659 else if (st->codec->bits_per_coded_sample == 24)
1660 st->codec->codec_id =
1661 st->codec->codec_id == AV_CODEC_ID_PCM_S16BE ?
1662 AV_CODEC_ID_PCM_S24BE : AV_CODEC_ID_PCM_S24LE;
1663 else if (st->codec->bits_per_coded_sample == 32)
1664 st->codec->codec_id =
1665 st->codec->codec_id == AV_CODEC_ID_PCM_S16BE ?
1666 AV_CODEC_ID_PCM_S32BE : AV_CODEC_ID_PCM_S32LE;
1668 /* set values for old format before stsd version 1 appeared */
1669 case AV_CODEC_ID_MACE3:
1670 sc->samples_per_frame = 6;
1671 sc->bytes_per_frame = 2 * st->codec->channels;
1673 case AV_CODEC_ID_MACE6:
1674 sc->samples_per_frame = 6;
1675 sc->bytes_per_frame = 1 * st->codec->channels;
1677 case AV_CODEC_ID_ADPCM_IMA_QT:
1678 sc->samples_per_frame = 64;
1679 sc->bytes_per_frame = 34 * st->codec->channels;
1681 case AV_CODEC_ID_GSM:
1682 sc->samples_per_frame = 160;
1683 sc->bytes_per_frame = 33;
1689 bits_per_sample = av_get_bits_per_sample(st->codec->codec_id);
1690 if (bits_per_sample) {
1691 st->codec->bits_per_coded_sample = bits_per_sample;
1692 sc->sample_size = (bits_per_sample >> 3) * st->codec->channels;
1696 static void mov_parse_stsd_subtitle(MOVContext *c, AVIOContext *pb,
1697 AVStream *st, MOVStreamContext *sc,
1700 // ttxt stsd contains display flags, justification, background
1701 // color, fonts, and default styles, so fake an atom to read it
1702 MOVAtom fake_atom = { .size = size };
1703 // mp4s contains a regular esds atom
1704 if (st->codec->codec_tag != AV_RL32("mp4s"))
1705 mov_read_glbl(c, pb, fake_atom);
1706 st->codec->width = sc->width;
1707 st->codec->height = sc->height;
1710 static uint32_t yuv_to_rgba(uint32_t ycbcr)
1715 y = (ycbcr >> 16) & 0xFF;
1716 cr = (ycbcr >> 8) & 0xFF;
1719 b = av_clip_uint8((1164 * (y - 16) + 2018 * (cb - 128)) / 1000);
1720 g = av_clip_uint8((1164 * (y - 16) - 813 * (cr - 128) - 391 * (cb - 128)) / 1000);
1721 r = av_clip_uint8((1164 * (y - 16) + 1596 * (cr - 128) ) / 1000);
1723 return (r << 16) | (g << 8) | b;
1726 static int mov_rewrite_dvd_sub_extradata(AVStream *st)
1728 char buf[256] = {0};
1729 uint8_t *src = st->codec->extradata;
1732 if (st->codec->extradata_size != 64)
1735 if (st->codec->width > 0 && st->codec->height > 0)
1736 snprintf(buf, sizeof(buf), "size: %dx%d\n",
1737 st->codec->width, st->codec->height);
1738 av_strlcat(buf, "palette: ", sizeof(buf));
1740 for (i = 0; i < 16; i++) {
1741 uint32_t yuv = AV_RB32(src + i * 4);
1742 uint32_t rgba = yuv_to_rgba(yuv);
1744 av_strlcatf(buf, sizeof(buf), "%06"PRIx32"%s", rgba, i != 15 ? ", " : "");
1747 if (av_strlcat(buf, "\n", sizeof(buf)) >= sizeof(buf))
1750 av_freep(&st->codec->extradata);
1751 st->codec->extradata_size = 0;
1752 st->codec->extradata = av_mallocz(strlen(buf) + FF_INPUT_BUFFER_PADDING_SIZE);
1753 if (!st->codec->extradata)
1754 return AVERROR(ENOMEM);
1755 st->codec->extradata_size = strlen(buf);
1756 memcpy(st->codec->extradata, buf, st->codec->extradata_size);
1761 static int mov_parse_stsd_data(MOVContext *c, AVIOContext *pb,
1762 AVStream *st, MOVStreamContext *sc,
1765 if (st->codec->codec_tag == MKTAG('t','m','c','d')) {
1766 if ((int)size != size || ff_get_extradata(st->codec, pb, size) < 0)
1767 return AVERROR(ENOMEM);
1769 MOVStreamContext *tmcd_ctx = st->priv_data;
1771 val = AV_RB32(st->codec->extradata + 4);
1772 tmcd_ctx->tmcd_flags = val;
1774 st->codec->flags2 |= CODEC_FLAG2_DROP_FRAME_TIMECODE;
1775 st->codec->time_base.den = st->codec->extradata[16]; /* number of frame */
1776 st->codec->time_base.num = 1;
1777 /* adjust for per frame dur in counter mode */
1778 if (tmcd_ctx->tmcd_flags & 0x0008) {
1779 int timescale = AV_RB32(st->codec->extradata + 8);
1780 int framedur = AV_RB32(st->codec->extradata + 12);
1781 st->codec->time_base.den *= timescale;
1782 st->codec->time_base.num *= framedur;
1785 uint32_t len = AV_RB32(st->codec->extradata + 18); /* name atom length */
1786 uint32_t format = AV_RB32(st->codec->extradata + 22);
1787 if (format == AV_RB32("name") && (int64_t)size >= (int64_t)len + 18) {
1788 uint16_t str_size = AV_RB16(st->codec->extradata + 26); /* string length */
1789 if (str_size > 0 && size >= (int)str_size + 26) {
1790 char *reel_name = av_malloc(str_size + 1);
1792 return AVERROR(ENOMEM);
1793 memcpy(reel_name, st->codec->extradata + 30, str_size);
1794 reel_name[str_size] = 0; /* Add null terminator */
1795 /* don't add reel_name if emtpy string */
1796 if (*reel_name == 0) {
1799 av_dict_set(&st->metadata, "reel_name", reel_name, AV_DICT_DONT_STRDUP_VAL);
1806 /* other codec type, just skip (rtp, mp4s ...) */
1807 avio_skip(pb, size);
1812 static int mov_finalize_stsd_codec(MOVContext *c, AVIOContext *pb,
1813 AVStream *st, MOVStreamContext *sc)
1815 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
1816 !st->codec->sample_rate && sc->time_scale > 1)
1817 st->codec->sample_rate = sc->time_scale;
1819 /* special codec parameters handling */
1820 switch (st->codec->codec_id) {
1821 #if CONFIG_DV_DEMUXER
1822 case AV_CODEC_ID_DVAUDIO:
1823 c->dv_fctx = avformat_alloc_context();
1824 c->dv_demux = avpriv_dv_init_demux(c->dv_fctx);
1826 av_log(c->fc, AV_LOG_ERROR, "dv demux context init error\n");
1827 return AVERROR(ENOMEM);
1829 sc->dv_audio_container = 1;
1830 st->codec->codec_id = AV_CODEC_ID_PCM_S16LE;
1833 /* no ifdef since parameters are always those */
1834 case AV_CODEC_ID_QCELP:
1835 st->codec->channels = 1;
1836 // force sample rate for qcelp when not stored in mov
1837 if (st->codec->codec_tag != MKTAG('Q','c','l','p'))
1838 st->codec->sample_rate = 8000;
1839 // FIXME: Why is the following needed for some files?
1840 sc->samples_per_frame = 160;
1841 if (!sc->bytes_per_frame)
1842 sc->bytes_per_frame = 35;
1844 case AV_CODEC_ID_AMR_NB:
1845 st->codec->channels = 1;
1846 /* force sample rate for amr, stsd in 3gp does not store sample rate */
1847 st->codec->sample_rate = 8000;
1849 case AV_CODEC_ID_AMR_WB:
1850 st->codec->channels = 1;
1851 st->codec->sample_rate = 16000;
1853 case AV_CODEC_ID_MP2:
1854 case AV_CODEC_ID_MP3:
1855 /* force type after stsd for m1a hdlr */
1856 st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
1857 st->need_parsing = AVSTREAM_PARSE_FULL;
1859 case AV_CODEC_ID_GSM:
1860 case AV_CODEC_ID_ADPCM_MS:
1861 case AV_CODEC_ID_ADPCM_IMA_WAV:
1862 case AV_CODEC_ID_ILBC:
1863 case AV_CODEC_ID_MACE3:
1864 case AV_CODEC_ID_MACE6:
1865 case AV_CODEC_ID_QDM2:
1866 st->codec->block_align = sc->bytes_per_frame;
1868 case AV_CODEC_ID_ALAC:
1869 if (st->codec->extradata_size == 36) {
1870 st->codec->channels = AV_RB8 (st->codec->extradata + 21);
1871 st->codec->sample_rate = AV_RB32(st->codec->extradata + 32);
1874 case AV_CODEC_ID_AC3:
1875 case AV_CODEC_ID_EAC3:
1876 case AV_CODEC_ID_MPEG1VIDEO:
1877 case AV_CODEC_ID_VC1:
1878 st->need_parsing = AVSTREAM_PARSE_FULL;
1886 static int mov_skip_multiple_stsd(MOVContext *c, AVIOContext *pb,
1887 int codec_tag, int format,
1890 int video_codec_id = ff_codec_get_id(ff_codec_movvideo_tags, format);
1893 (codec_tag != format &&
1894 (c->fc->video_codec_id ? video_codec_id != c->fc->video_codec_id
1895 : codec_tag != MKTAG('j','p','e','g')))) {
1896 /* Multiple fourcc, we skip JPEG. This is not correct, we should
1897 * export it as a separate AVStream but this needs a few changes
1898 * in the MOV demuxer, patch welcome. */
1900 av_log(c->fc, AV_LOG_WARNING, "multiple fourcc not supported\n");
1901 avio_skip(pb, size);
1904 if ( codec_tag == AV_RL32("avc1") ||
1905 codec_tag == AV_RL32("hvc1") ||
1906 codec_tag == AV_RL32("hev1")
1908 av_log(c->fc, AV_LOG_WARNING, "Concatenated H.264 or H.265 might not play correctly.\n");
1913 int ff_mov_read_stsd_entries(MOVContext *c, AVIOContext *pb, int entries)
1916 MOVStreamContext *sc;
1917 int pseudo_stream_id;
1919 if (c->fc->nb_streams < 1)
1921 st = c->fc->streams[c->fc->nb_streams-1];
1924 for (pseudo_stream_id = 0;
1925 pseudo_stream_id < entries && !pb->eof_reached;
1926 pseudo_stream_id++) {
1927 //Parsing Sample description table
1929 int ret, dref_id = 1;
1930 MOVAtom a = { AV_RL32("stsd") };
1931 int64_t start_pos = avio_tell(pb);
1932 int64_t size = avio_rb32(pb); /* size */
1933 uint32_t format = avio_rl32(pb); /* data format */
1936 avio_rb32(pb); /* reserved */
1937 avio_rb16(pb); /* reserved */
1938 dref_id = avio_rb16(pb);
1939 }else if (size <= 7){
1940 av_log(c->fc, AV_LOG_ERROR, "invalid size %"PRId64" in stsd\n", size);
1941 return AVERROR_INVALIDDATA;
1944 if (mov_skip_multiple_stsd(c, pb, st->codec->codec_tag, format,
1945 size - (avio_tell(pb) - start_pos)))
1948 sc->pseudo_stream_id = st->codec->codec_tag ? -1 : pseudo_stream_id;
1949 sc->dref_id= dref_id;
1951 id = mov_codec_id(st, format);
1953 av_log(c->fc, AV_LOG_TRACE, "size=%"PRId64" 4CC= %c%c%c%c codec_type=%d\n", size,
1954 (format >> 0) & 0xff, (format >> 8) & 0xff, (format >> 16) & 0xff,
1955 (format >> 24) & 0xff, st->codec->codec_type);
1957 if (st->codec->codec_type==AVMEDIA_TYPE_VIDEO) {
1958 st->codec->codec_id = id;
1959 mov_parse_stsd_video(c, pb, st, sc);
1960 } else if (st->codec->codec_type==AVMEDIA_TYPE_AUDIO) {
1961 st->codec->codec_id = id;
1962 mov_parse_stsd_audio(c, pb, st, sc);
1963 } else if (st->codec->codec_type==AVMEDIA_TYPE_SUBTITLE){
1964 st->codec->codec_id = id;
1965 mov_parse_stsd_subtitle(c, pb, st, sc,
1966 size - (avio_tell(pb) - start_pos));
1968 ret = mov_parse_stsd_data(c, pb, st, sc,
1969 size - (avio_tell(pb) - start_pos));
1973 /* this will read extra atoms at the end (wave, alac, damr, avcC, hvcC, SMI ...) */
1974 a.size = size - (avio_tell(pb) - start_pos);
1976 if ((ret = mov_read_default(c, pb, a)) < 0)
1978 } else if (a.size > 0)
1979 avio_skip(pb, a.size);
1982 if (pb->eof_reached)
1985 return mov_finalize_stsd_codec(c, pb, st, sc);
1988 static int mov_read_stsd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1992 avio_r8(pb); /* version */
1993 avio_rb24(pb); /* flags */
1994 entries = avio_rb32(pb);
1996 return ff_mov_read_stsd_entries(c, pb, entries);
1999 static int mov_read_stsc(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2002 MOVStreamContext *sc;
2003 unsigned int i, entries;
2005 if (c->fc->nb_streams < 1)
2007 st = c->fc->streams[c->fc->nb_streams-1];
2010 avio_r8(pb); /* version */
2011 avio_rb24(pb); /* flags */
2013 entries = avio_rb32(pb);
2015 av_log(c->fc, AV_LOG_TRACE, "track[%i].stsc.entries = %i\n", c->fc->nb_streams-1, entries);
2020 av_log(c->fc, AV_LOG_WARNING, "Duplicated STSC atom\n");
2021 av_free(sc->stsc_data);
2023 sc->stsc_data = av_malloc_array(entries, sizeof(*sc->stsc_data));
2025 return AVERROR(ENOMEM);
2027 for (i = 0; i < entries && !pb->eof_reached; i++) {
2028 sc->stsc_data[i].first = avio_rb32(pb);
2029 sc->stsc_data[i].count = avio_rb32(pb);
2030 sc->stsc_data[i].id = avio_rb32(pb);
2035 if (pb->eof_reached)
2041 static int mov_read_stps(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2044 MOVStreamContext *sc;
2045 unsigned i, entries;
2047 if (c->fc->nb_streams < 1)
2049 st = c->fc->streams[c->fc->nb_streams-1];
2052 avio_rb32(pb); // version + flags
2054 entries = avio_rb32(pb);
2056 av_log(c->fc, AV_LOG_WARNING, "Duplicated STPS atom\n");
2057 av_free(sc->stps_data);
2059 sc->stps_data = av_malloc_array(entries, sizeof(*sc->stps_data));
2061 return AVERROR(ENOMEM);
2063 for (i = 0; i < entries && !pb->eof_reached; i++) {
2064 sc->stps_data[i] = avio_rb32(pb);
2065 //av_log(c->fc, AV_LOG_TRACE, "stps %d\n", sc->stps_data[i]);
2070 if (pb->eof_reached)
2076 static int mov_read_stss(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2079 MOVStreamContext *sc;
2080 unsigned int i, entries;
2082 if (c->fc->nb_streams < 1)
2084 st = c->fc->streams[c->fc->nb_streams-1];
2087 avio_r8(pb); /* version */
2088 avio_rb24(pb); /* flags */
2090 entries = avio_rb32(pb);
2092 av_log(c->fc, AV_LOG_TRACE, "keyframe_count = %d\n", entries);
2096 sc->keyframe_absent = 1;
2097 if (!st->need_parsing && st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2098 st->need_parsing = AVSTREAM_PARSE_HEADERS;
2102 av_log(c->fc, AV_LOG_WARNING, "Duplicated STSS atom\n");
2103 if (entries >= UINT_MAX / sizeof(int))
2104 return AVERROR_INVALIDDATA;
2105 av_freep(&sc->keyframes);
2106 sc->keyframe_count = 0;
2107 sc->keyframes = av_malloc_array(entries, sizeof(*sc->keyframes));
2109 return AVERROR(ENOMEM);
2111 for (i = 0; i < entries && !pb->eof_reached; i++) {
2112 sc->keyframes[i] = avio_rb32(pb);
2113 //av_log(c->fc, AV_LOG_TRACE, "keyframes[]=%d\n", sc->keyframes[i]);
2116 sc->keyframe_count = i;
2118 if (pb->eof_reached)
2124 static int mov_read_stsz(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2127 MOVStreamContext *sc;
2128 unsigned int i, entries, sample_size, field_size, num_bytes;
2132 if (c->fc->nb_streams < 1)
2134 st = c->fc->streams[c->fc->nb_streams-1];
2137 avio_r8(pb); /* version */
2138 avio_rb24(pb); /* flags */
2140 if (atom.type == MKTAG('s','t','s','z')) {
2141 sample_size = avio_rb32(pb);
2142 if (!sc->sample_size) /* do not overwrite value computed in stsd */
2143 sc->sample_size = sample_size;
2144 sc->stsz_sample_size = sample_size;
2148 avio_rb24(pb); /* reserved */
2149 field_size = avio_r8(pb);
2151 entries = avio_rb32(pb);
2153 av_log(c->fc, AV_LOG_TRACE, "sample_size = %d sample_count = %d\n", sc->sample_size, entries);
2155 sc->sample_count = entries;
2159 if (field_size != 4 && field_size != 8 && field_size != 16 && field_size != 32) {
2160 av_log(c->fc, AV_LOG_ERROR, "Invalid sample field size %d\n", field_size);
2161 return AVERROR_INVALIDDATA;
2166 if (entries >= (UINT_MAX - 4) / field_size)
2167 return AVERROR_INVALIDDATA;
2168 if (sc->sample_sizes)
2169 av_log(c->fc, AV_LOG_WARNING, "Duplicated STSZ atom\n");
2170 av_free(sc->sample_sizes);
2171 sc->sample_count = 0;
2172 sc->sample_sizes = av_malloc_array(entries, sizeof(*sc->sample_sizes));
2173 if (!sc->sample_sizes)
2174 return AVERROR(ENOMEM);
2176 num_bytes = (entries*field_size+4)>>3;
2178 buf = av_malloc(num_bytes+FF_INPUT_BUFFER_PADDING_SIZE);
2180 av_freep(&sc->sample_sizes);
2181 return AVERROR(ENOMEM);
2184 if (avio_read(pb, buf, num_bytes) < num_bytes) {
2185 av_freep(&sc->sample_sizes);
2187 return AVERROR_INVALIDDATA;
2190 init_get_bits(&gb, buf, 8*num_bytes);
2192 for (i = 0; i < entries && !pb->eof_reached; i++) {
2193 sc->sample_sizes[i] = get_bits_long(&gb, field_size);
2194 sc->data_size += sc->sample_sizes[i];
2197 sc->sample_count = i;
2201 if (pb->eof_reached)
2207 static int mov_read_stts(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2210 MOVStreamContext *sc;
2211 unsigned int i, entries;
2213 int64_t total_sample_count=0;
2215 if (c->fc->nb_streams < 1)
2217 st = c->fc->streams[c->fc->nb_streams-1];
2220 avio_r8(pb); /* version */
2221 avio_rb24(pb); /* flags */
2222 entries = avio_rb32(pb);
2224 av_log(c->fc, AV_LOG_TRACE, "track[%i].stts.entries = %i\n",
2225 c->fc->nb_streams-1, entries);
2228 av_log(c->fc, AV_LOG_WARNING, "Duplicated STTS atom\n");
2229 av_free(sc->stts_data);
2231 sc->stts_data = av_malloc_array(entries, sizeof(*sc->stts_data));
2233 return AVERROR(ENOMEM);
2235 for (i = 0; i < entries && !pb->eof_reached; i++) {
2236 int sample_duration;
2239 sample_count=avio_rb32(pb);
2240 sample_duration = avio_rb32(pb);
2242 if (sample_count < 0) {
2243 av_log(c->fc, AV_LOG_ERROR, "Invalid sample_count=%d\n", sample_count);
2244 return AVERROR_INVALIDDATA;
2246 sc->stts_data[i].count= sample_count;
2247 sc->stts_data[i].duration= sample_duration;
2249 av_log(c->fc, AV_LOG_TRACE, "sample_count=%d, sample_duration=%d\n",
2250 sample_count, sample_duration);
2254 && sample_count == 1
2255 && total_sample_count > 100
2256 && sample_duration/10 > duration / total_sample_count)
2257 sample_duration = duration / total_sample_count;
2258 duration+=(int64_t)sample_duration*sample_count;
2259 total_sample_count+=sample_count;
2264 sc->duration_for_fps += duration;
2265 sc->nb_frames_for_fps += total_sample_count;
2267 if (pb->eof_reached)
2270 st->nb_frames= total_sample_count;
2272 st->duration= duration;
2273 sc->track_end = duration;
2277 static void mov_update_dts_shift(MOVStreamContext *sc, int duration)
2280 sc->dts_shift = FFMAX(sc->dts_shift, -duration);
2284 static int mov_read_ctts(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2287 MOVStreamContext *sc;
2288 unsigned int i, entries;
2290 if (c->fc->nb_streams < 1)
2292 st = c->fc->streams[c->fc->nb_streams-1];
2295 avio_r8(pb); /* version */
2296 avio_rb24(pb); /* flags */
2297 entries = avio_rb32(pb);
2299 av_log(c->fc, AV_LOG_TRACE, "track[%i].ctts.entries = %i\n", c->fc->nb_streams-1, entries);
2303 if (entries >= UINT_MAX / sizeof(*sc->ctts_data))
2304 return AVERROR_INVALIDDATA;
2305 av_freep(&sc->ctts_data);
2306 sc->ctts_data = av_malloc(entries * sizeof(*sc->ctts_data));
2308 return AVERROR(ENOMEM);
2310 for (i = 0; i < entries && !pb->eof_reached; i++) {
2311 int count =avio_rb32(pb);
2312 int duration =avio_rb32(pb);
2314 sc->ctts_data[i].count = count;
2315 sc->ctts_data[i].duration= duration;
2317 av_log(c->fc, AV_LOG_TRACE, "count=%d, duration=%d\n",
2320 if (FFABS(duration) > (1<<28) && i+2<entries) {
2321 av_log(c->fc, AV_LOG_WARNING, "CTTS invalid\n");
2322 av_freep(&sc->ctts_data);
2328 mov_update_dts_shift(sc, duration);
2333 if (pb->eof_reached)
2336 av_log(c->fc, AV_LOG_TRACE, "dts shift %d\n", sc->dts_shift);
2341 static int mov_read_sbgp(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2344 MOVStreamContext *sc;
2345 unsigned int i, entries;
2347 uint32_t grouping_type;
2349 if (c->fc->nb_streams < 1)
2351 st = c->fc->streams[c->fc->nb_streams-1];
2354 version = avio_r8(pb); /* version */
2355 avio_rb24(pb); /* flags */
2356 grouping_type = avio_rl32(pb);
2357 if (grouping_type != MKTAG( 'r','a','p',' '))
2358 return 0; /* only support 'rap ' grouping */
2360 avio_rb32(pb); /* grouping_type_parameter */
2362 entries = avio_rb32(pb);
2366 av_log(c->fc, AV_LOG_WARNING, "Duplicated SBGP atom\n");
2367 av_free(sc->rap_group);
2368 sc->rap_group_count = 0;
2369 sc->rap_group = av_malloc_array(entries, sizeof(*sc->rap_group));
2371 return AVERROR(ENOMEM);
2373 for (i = 0; i < entries && !pb->eof_reached; i++) {
2374 sc->rap_group[i].count = avio_rb32(pb); /* sample_count */
2375 sc->rap_group[i].index = avio_rb32(pb); /* group_description_index */
2378 sc->rap_group_count = i;
2380 return pb->eof_reached ? AVERROR_EOF : 0;
2383 static void mov_build_index(MOVContext *mov, AVStream *st)
2385 MOVStreamContext *sc = st->priv_data;
2386 int64_t current_offset;
2387 int64_t current_dts = 0;
2388 unsigned int stts_index = 0;
2389 unsigned int stsc_index = 0;
2390 unsigned int stss_index = 0;
2391 unsigned int stps_index = 0;
2393 uint64_t stream_size = 0;
2395 if (sc->elst_count) {
2396 int i, edit_start_index = 0, unsupported = 0;
2397 int64_t empty_duration = 0; // empty duration of the first edit list entry
2398 int64_t start_time = 0; // start time of the media
2400 for (i = 0; i < sc->elst_count; i++) {
2401 const MOVElst *e = &sc->elst_data[i];
2402 if (i == 0 && e->time == -1) {
2403 /* if empty, the first entry is the start time of the stream
2404 * relative to the presentation itself */
2405 empty_duration = e->duration;
2406 edit_start_index = 1;
2407 } else if (i == edit_start_index && e->time >= 0) {
2408 start_time = e->time;
2413 av_log(mov->fc, AV_LOG_WARNING, "multiple edit list entries, "
2414 "a/v desync might occur, patch welcome\n");
2416 /* adjust first dts according to edit list */
2417 if ((empty_duration || start_time) && mov->time_scale > 0) {
2419 empty_duration = av_rescale(empty_duration, sc->time_scale, mov->time_scale);
2420 sc->time_offset = start_time - empty_duration;
2421 current_dts = -sc->time_offset;
2422 if (sc->ctts_count>0 && sc->stts_count>0 &&
2423 sc->ctts_data[0].duration / FFMAX(sc->stts_data[0].duration, 1) > 16) {
2424 /* more than 16 frames delay, dts are likely wrong
2425 this happens with files created by iMovie */
2427 st->codec->has_b_frames = 1;
2432 /* only use old uncompressed audio chunk demuxing when stts specifies it */
2433 if (!(st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
2434 sc->stts_count == 1 && sc->stts_data[0].duration == 1)) {
2435 unsigned int current_sample = 0;
2436 unsigned int stts_sample = 0;
2437 unsigned int sample_size;
2438 unsigned int distance = 0;
2439 unsigned int rap_group_index = 0;
2440 unsigned int rap_group_sample = 0;
2441 int64_t last_dts = 0;
2442 int64_t dts_correction = 0;
2443 int rap_group_present = sc->rap_group_count && sc->rap_group;
2444 int key_off = (sc->keyframe_count && sc->keyframes[0] > 0) || (sc->stps_count && sc->stps_data[0] > 0);
2446 current_dts -= sc->dts_shift;
2447 last_dts = current_dts;
2449 if (!sc->sample_count || st->nb_index_entries)
2451 if (sc->sample_count >= UINT_MAX / sizeof(*st->index_entries) - st->nb_index_entries)
2453 if (av_reallocp_array(&st->index_entries,
2454 st->nb_index_entries + sc->sample_count,
2455 sizeof(*st->index_entries)) < 0) {
2456 st->nb_index_entries = 0;
2459 st->index_entries_allocated_size = (st->nb_index_entries + sc->sample_count) * sizeof(*st->index_entries);
2461 for (i = 0; i < sc->chunk_count; i++) {
2462 int64_t next_offset = i+1 < sc->chunk_count ? sc->chunk_offsets[i+1] : INT64_MAX;
2463 current_offset = sc->chunk_offsets[i];
2464 while (stsc_index + 1 < sc->stsc_count &&
2465 i + 1 == sc->stsc_data[stsc_index + 1].first)
2468 if (next_offset > current_offset && sc->sample_size>0 && sc->sample_size < sc->stsz_sample_size &&
2469 sc->stsc_data[stsc_index].count * (int64_t)sc->stsz_sample_size > next_offset - current_offset) {
2470 av_log(mov->fc, AV_LOG_WARNING, "STSZ sample size %d invalid (too large), ignoring\n", sc->stsz_sample_size);
2471 sc->stsz_sample_size = sc->sample_size;
2473 if (sc->stsz_sample_size>0 && sc->stsz_sample_size < sc->sample_size) {
2474 av_log(mov->fc, AV_LOG_WARNING, "STSZ sample size %d invalid (too small), ignoring\n", sc->stsz_sample_size);
2475 sc->stsz_sample_size = sc->sample_size;
2478 for (j = 0; j < sc->stsc_data[stsc_index].count; j++) {
2480 if (current_sample >= sc->sample_count) {
2481 av_log(mov->fc, AV_LOG_ERROR, "wrong sample count\n");
2485 if (!sc->keyframe_absent && (!sc->keyframe_count || current_sample+key_off == sc->keyframes[stss_index])) {
2487 if (stss_index + 1 < sc->keyframe_count)
2489 } else if (sc->stps_count && current_sample+key_off == sc->stps_data[stps_index]) {
2491 if (stps_index + 1 < sc->stps_count)
2494 if (rap_group_present && rap_group_index < sc->rap_group_count) {
2495 if (sc->rap_group[rap_group_index].index > 0)
2497 if (++rap_group_sample == sc->rap_group[rap_group_index].count) {
2498 rap_group_sample = 0;
2502 if (sc->keyframe_absent
2504 && !rap_group_present
2505 && (st->codec->codec_type == AVMEDIA_TYPE_AUDIO || (i==0 && j==0)))
2509 sample_size = sc->stsz_sample_size > 0 ? sc->stsz_sample_size : sc->sample_sizes[current_sample];
2510 if (sc->pseudo_stream_id == -1 ||
2511 sc->stsc_data[stsc_index].id - 1 == sc->pseudo_stream_id) {
2512 AVIndexEntry *e = &st->index_entries[st->nb_index_entries++];
2513 e->pos = current_offset;
2514 e->timestamp = current_dts;
2515 e->size = sample_size;
2516 e->min_distance = distance;
2517 e->flags = keyframe ? AVINDEX_KEYFRAME : 0;
2518 av_log(mov->fc, AV_LOG_TRACE, "AVIndex stream %d, sample %d, offset %"PRIx64", dts %"PRId64", "
2519 "size %d, distance %d, keyframe %d\n", st->index, current_sample,
2520 current_offset, current_dts, sample_size, distance, keyframe);
2521 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && st->nb_index_entries < 100)
2522 ff_rfps_add_frame(mov->fc, st, current_dts);
2525 current_offset += sample_size;
2526 stream_size += sample_size;
2528 /* A negative sample duration is invalid based on the spec,
2529 * but some samples need it to correct the DTS. */
2530 if (sc->stts_data[stts_index].duration < 0) {
2531 av_log(mov->fc, AV_LOG_WARNING,
2532 "Invalid SampleDelta %d in STTS, at %d st:%d\n",
2533 sc->stts_data[stts_index].duration, stts_index,
2535 dts_correction += sc->stts_data[stts_index].duration - 1;
2536 sc->stts_data[stts_index].duration = 1;
2538 current_dts += sc->stts_data[stts_index].duration;
2539 if (!dts_correction || current_dts + dts_correction > last_dts) {
2540 current_dts += dts_correction;
2543 /* Avoid creating non-monotonous DTS */
2544 dts_correction += current_dts - last_dts - 1;
2545 current_dts = last_dts + 1;
2547 last_dts = current_dts;
2551 if (stts_index + 1 < sc->stts_count && stts_sample == sc->stts_data[stts_index].count) {
2557 if (st->duration > 0)
2558 st->codec->bit_rate = stream_size*8*sc->time_scale/st->duration;
2560 unsigned chunk_samples, total = 0;
2562 // compute total chunk count
2563 for (i = 0; i < sc->stsc_count; i++) {
2564 unsigned count, chunk_count;
2566 chunk_samples = sc->stsc_data[i].count;
2567 if (i != sc->stsc_count - 1 &&
2568 sc->samples_per_frame && chunk_samples % sc->samples_per_frame) {
2569 av_log(mov->fc, AV_LOG_ERROR, "error unaligned chunk\n");
2573 if (sc->samples_per_frame >= 160) { // gsm
2574 count = chunk_samples / sc->samples_per_frame;
2575 } else if (sc->samples_per_frame > 1) {
2576 unsigned samples = (1024/sc->samples_per_frame)*sc->samples_per_frame;
2577 count = (chunk_samples+samples-1) / samples;
2579 count = (chunk_samples+1023) / 1024;
2582 if (i < sc->stsc_count - 1)
2583 chunk_count = sc->stsc_data[i+1].first - sc->stsc_data[i].first;
2585 chunk_count = sc->chunk_count - (sc->stsc_data[i].first - 1);
2586 total += chunk_count * count;
2589 av_log(mov->fc, AV_LOG_TRACE, "chunk count %d\n", total);
2590 if (total >= UINT_MAX / sizeof(*st->index_entries) - st->nb_index_entries)
2592 if (av_reallocp_array(&st->index_entries,
2593 st->nb_index_entries + total,
2594 sizeof(*st->index_entries)) < 0) {
2595 st->nb_index_entries = 0;
2598 st->index_entries_allocated_size = (st->nb_index_entries + total) * sizeof(*st->index_entries);
2601 for (i = 0; i < sc->chunk_count; i++) {
2602 current_offset = sc->chunk_offsets[i];
2603 if (stsc_index + 1 < sc->stsc_count &&
2604 i + 1 == sc->stsc_data[stsc_index + 1].first)
2606 chunk_samples = sc->stsc_data[stsc_index].count;
2608 while (chunk_samples > 0) {
2610 unsigned size, samples;
2612 if (sc->samples_per_frame > 1 && !sc->bytes_per_frame) {
2613 avpriv_request_sample(mov->fc,
2614 "Zero bytes per frame, but %d samples per frame",
2615 sc->samples_per_frame);
2619 if (sc->samples_per_frame >= 160) { // gsm
2620 samples = sc->samples_per_frame;
2621 size = sc->bytes_per_frame;
2623 if (sc->samples_per_frame > 1) {
2624 samples = FFMIN((1024 / sc->samples_per_frame)*
2625 sc->samples_per_frame, chunk_samples);
2626 size = (samples / sc->samples_per_frame) * sc->bytes_per_frame;
2628 samples = FFMIN(1024, chunk_samples);
2629 size = samples * sc->sample_size;
2633 if (st->nb_index_entries >= total) {
2634 av_log(mov->fc, AV_LOG_ERROR, "wrong chunk count %d\n", total);
2637 e = &st->index_entries[st->nb_index_entries++];
2638 e->pos = current_offset;
2639 e->timestamp = current_dts;
2641 e->min_distance = 0;
2642 e->flags = AVINDEX_KEYFRAME;
2643 av_log(mov->fc, AV_LOG_TRACE, "AVIndex stream %d, chunk %d, offset %"PRIx64", dts %"PRId64", "
2644 "size %d, duration %d\n", st->index, i, current_offset, current_dts,
2647 current_offset += size;
2648 current_dts += samples;
2649 chunk_samples -= samples;
2655 static int mov_open_dref(MOVContext *c, AVIOContext **pb, const char *src, MOVDref *ref,
2656 AVIOInterruptCB *int_cb)
2658 AVOpenCallback open_func = c->fc->open_cb;
2661 open_func = ffio_open2_wrapper;
2663 /* try relative path, we do not try the absolute because it can leak information about our
2664 system to an attacker */
2665 if (ref->nlvl_to > 0 && ref->nlvl_from > 0 && ref->path[0] != '/') {
2666 char filename[1025];
2667 const char *src_path;
2670 /* find a source dir */
2671 src_path = strrchr(src, '/');
2677 /* find a next level down to target */
2678 for (i = 0, l = strlen(ref->path) - 1; l >= 0; l--)
2679 if (ref->path[l] == '/') {
2680 if (i == ref->nlvl_to - 1)
2686 /* compose filename if next level down to target was found */
2687 if (i == ref->nlvl_to - 1 && src_path - src < sizeof(filename)) {
2688 memcpy(filename, src, src_path - src);
2689 filename[src_path - src] = 0;
2691 for (i = 1; i < ref->nlvl_from; i++)
2692 av_strlcat(filename, "../", sizeof(filename));
2694 av_strlcat(filename, ref->path + l + 1, sizeof(filename));
2695 if (!c->use_absolute_path && !c->fc->open_cb)
2696 if(strstr(ref->path + l + 1, "..") || ref->nlvl_from > 1)
2697 return AVERROR(ENOENT);
2699 if (strlen(filename) + 1 == sizeof(filename))
2700 return AVERROR(ENOENT);
2701 if (!open_func(c->fc, pb, filename, AVIO_FLAG_READ, int_cb, NULL))
2704 } else if (c->use_absolute_path) {
2705 av_log(c->fc, AV_LOG_WARNING, "Using absolute path on user request, "
2706 "this is a possible security issue\n");
2707 if (!open_func(c->fc, pb, ref->path, AVIO_FLAG_READ, int_cb, NULL))
2709 } else if (c->fc->open_cb) {
2710 if (!open_func(c->fc, pb, ref->path, AVIO_FLAG_READ, int_cb, NULL))
2713 av_log(c->fc, AV_LOG_ERROR,
2714 "Absolute path %s not tried for security reasons, "
2715 "set demuxer option use_absolute_path to allow absolute paths\n",
2719 return AVERROR(ENOENT);
2722 static void fix_timescale(MOVContext *c, MOVStreamContext *sc)
2724 if (sc->time_scale <= 0) {
2725 av_log(c->fc, AV_LOG_WARNING, "stream %d, timescale not set\n", sc->ffindex);
2726 sc->time_scale = c->time_scale;
2727 if (sc->time_scale <= 0)
2732 static int mov_read_trak(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2735 MOVStreamContext *sc;
2738 st = avformat_new_stream(c->fc, NULL);
2739 if (!st) return AVERROR(ENOMEM);
2740 st->id = c->fc->nb_streams;
2741 sc = av_mallocz(sizeof(MOVStreamContext));
2742 if (!sc) return AVERROR(ENOMEM);
2745 st->codec->codec_type = AVMEDIA_TYPE_DATA;
2746 sc->ffindex = st->index;
2748 if ((ret = mov_read_default(c, pb, atom)) < 0)
2752 if (sc->chunk_count && (!sc->stts_count || !sc->stsc_count ||
2753 (!sc->sample_size && !sc->sample_count))) {
2754 av_log(c->fc, AV_LOG_ERROR, "stream %d, missing mandatory atoms, broken header\n",
2759 fix_timescale(c, sc);
2761 avpriv_set_pts_info(st, 64, 1, sc->time_scale);
2763 mov_build_index(c, st);
2765 if (sc->dref_id-1 < sc->drefs_count && sc->drefs[sc->dref_id-1].path) {
2766 MOVDref *dref = &sc->drefs[sc->dref_id - 1];
2767 if (mov_open_dref(c, &sc->pb, c->fc->filename, dref,
2768 &c->fc->interrupt_callback) < 0)
2769 av_log(c->fc, AV_LOG_ERROR,
2770 "stream %d, error opening alias: path='%s', dir='%s', "
2771 "filename='%s', volume='%s', nlvl_from=%d, nlvl_to=%d\n",
2772 st->index, dref->path, dref->dir, dref->filename,
2773 dref->volume, dref->nlvl_from, dref->nlvl_to);
2776 sc->pb_is_copied = 1;
2779 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
2780 if (!st->sample_aspect_ratio.num && st->codec->width && st->codec->height &&
2781 sc->height && sc->width &&
2782 (st->codec->width != sc->width || st->codec->height != sc->height)) {
2783 st->sample_aspect_ratio = av_d2q(((double)st->codec->height * sc->width) /
2784 ((double)st->codec->width * sc->height), INT_MAX);
2787 #if FF_API_R_FRAME_RATE
2788 if (sc->stts_count == 1 || (sc->stts_count == 2 && sc->stts_data[1].count == 1))
2789 av_reduce(&st->r_frame_rate.num, &st->r_frame_rate.den,
2790 sc->time_scale, sc->stts_data[0].duration, INT_MAX);
2794 // done for ai5q, ai52, ai55, ai1q, ai12 and ai15.
2795 if (!st->codec->extradata_size && st->codec->codec_id == AV_CODEC_ID_H264 &&
2796 TAG_IS_AVCI(st->codec->codec_tag)) {
2797 ret = ff_generate_avci_extradata(st);
2802 switch (st->codec->codec_id) {
2803 #if CONFIG_H261_DECODER
2804 case AV_CODEC_ID_H261:
2806 #if CONFIG_H263_DECODER
2807 case AV_CODEC_ID_H263:
2809 #if CONFIG_MPEG4_DECODER
2810 case AV_CODEC_ID_MPEG4:
2812 st->codec->width = 0; /* let decoder init width/height */
2813 st->codec->height= 0;
2817 /* Do not need those anymore. */
2818 av_freep(&sc->chunk_offsets);
2819 av_freep(&sc->stsc_data);
2820 av_freep(&sc->sample_sizes);
2821 av_freep(&sc->keyframes);
2822 av_freep(&sc->stts_data);
2823 av_freep(&sc->stps_data);
2824 av_freep(&sc->elst_data);
2825 av_freep(&sc->rap_group);
2830 static int mov_read_ilst(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2833 c->itunes_metadata = 1;
2834 ret = mov_read_default(c, pb, atom);
2835 c->itunes_metadata = 0;
2839 static int mov_read_custom_2plus(MOVContext *c, AVIOContext *pb, int size)
2841 int64_t end = avio_tell(pb) + size;
2842 uint8_t *key = NULL, *val = NULL;
2845 MOVStreamContext *sc;
2847 if (c->fc->nb_streams < 1)
2849 st = c->fc->streams[c->fc->nb_streams-1];
2852 for (i = 0; i < 2; i++) {
2856 if (end - avio_tell(pb) <= 12)
2859 len = avio_rb32(pb);
2860 tag = avio_rl32(pb);
2861 avio_skip(pb, 4); // flags
2863 if (len < 12 || len - 12 > end - avio_tell(pb))
2867 if (tag == MKTAG('n', 'a', 'm', 'e'))
2869 else if (tag == MKTAG('d', 'a', 't', 'a') && len > 4) {
2876 *p = av_malloc(len + 1);
2879 if (avio_read(pb, *p, len) != len) {
2881 return AVERROR_INVALIDDATA;
2887 if (strcmp(key, "iTunSMPB") == 0) {
2888 int priming, remainder, samples;
2889 if(sscanf(val, "%*X %X %X %X", &priming, &remainder, &samples) == 3){
2890 if(priming>0 && priming<16384)
2891 sc->start_pad = priming;
2894 if (strcmp(key, "cdec") != 0) {
2895 av_dict_set(&c->fc->metadata, key, val,
2896 AV_DICT_DONT_STRDUP_KEY | AV_DICT_DONT_STRDUP_VAL);
2901 avio_seek(pb, end, SEEK_SET);
2907 static int mov_read_custom(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2909 int64_t end = avio_tell(pb) + atom.size;
2915 len = avio_rb32(pb);
2916 tag = avio_rl32(pb);
2918 if (len > atom.size)
2921 if (tag == MKTAG('m', 'e', 'a', 'n') && len > 12) {
2922 uint8_t domain[128];
2925 avio_skip(pb, 4); // flags
2928 domain_len = avio_get_str(pb, len, domain, sizeof(domain));
2929 avio_skip(pb, len - domain_len);
2930 return mov_read_custom_2plus(c, pb, end - avio_tell(pb));
2934 av_log(c->fc, AV_LOG_VERBOSE,
2935 "Unhandled or malformed custom metadata of size %"PRId64"\n", atom.size);
2939 static int mov_read_meta(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2941 while (atom.size > 8) {
2942 uint32_t tag = avio_rl32(pb);
2944 if (tag == MKTAG('h','d','l','r')) {
2945 avio_seek(pb, -8, SEEK_CUR);
2947 return mov_read_default(c, pb, atom);
2953 static int mov_read_tkhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2958 int display_matrix[3][3];
2960 MOVStreamContext *sc;
2964 if (c->fc->nb_streams < 1)
2966 st = c->fc->streams[c->fc->nb_streams-1];
2969 version = avio_r8(pb);
2970 flags = avio_rb24(pb);
2971 st->disposition |= (flags & MOV_TKHD_FLAG_ENABLED) ? AV_DISPOSITION_DEFAULT : 0;
2977 avio_rb32(pb); /* creation time */
2978 avio_rb32(pb); /* modification time */
2980 st->id = (int)avio_rb32(pb); /* track id (NOT 0 !)*/
2981 avio_rb32(pb); /* reserved */
2983 /* highlevel (considering edits) duration in movie timebase */
2984 (version == 1) ? avio_rb64(pb) : avio_rb32(pb);
2985 avio_rb32(pb); /* reserved */
2986 avio_rb32(pb); /* reserved */
2988 avio_rb16(pb); /* layer */
2989 avio_rb16(pb); /* alternate group */
2990 avio_rb16(pb); /* volume */
2991 avio_rb16(pb); /* reserved */
2993 //read in the display matrix (outlined in ISO 14496-12, Section 6.2.2)
2994 // they're kept in fixed point format through all calculations
2995 // save u,v,z to store the whole matrix in the AV_PKT_DATA_DISPLAYMATRIX
2996 // side data, but the scale factor is not needed to calculate aspect ratio
2997 for (i = 0; i < 3; i++) {
2998 display_matrix[i][0] = avio_rb32(pb); // 16.16 fixed point
2999 display_matrix[i][1] = avio_rb32(pb); // 16.16 fixed point
3000 display_matrix[i][2] = avio_rb32(pb); // 2.30 fixed point
3003 width = avio_rb32(pb); // 16.16 fixed point track width
3004 height = avio_rb32(pb); // 16.16 fixed point track height
3005 sc->width = width >> 16;
3006 sc->height = height >> 16;
3008 // save the matrix and add rotate metadata when it is not the default
3010 if (display_matrix[0][0] != (1 << 16) ||
3011 display_matrix[1][1] != (1 << 16) ||
3012 display_matrix[2][2] != (1 << 30) ||
3013 display_matrix[0][1] || display_matrix[0][2] ||
3014 display_matrix[1][0] || display_matrix[1][2] ||
3015 display_matrix[2][0] || display_matrix[2][1]) {
3019 av_freep(&sc->display_matrix);
3020 sc->display_matrix = av_malloc(sizeof(int32_t) * 9);
3021 if (!sc->display_matrix)
3022 return AVERROR(ENOMEM);
3024 for (i = 0; i < 3; i++)
3025 for (j = 0; j < 3; j++)
3026 sc->display_matrix[i * 3 + j] = display_matrix[i][j];
3028 rotate = av_display_rotation_get(sc->display_matrix);
3029 if (!isnan(rotate)) {
3030 char rotate_buf[64];
3032 if (rotate < 0) // for backward compatibility
3034 snprintf(rotate_buf, sizeof(rotate_buf), "%g", rotate);
3035 av_dict_set(&st->metadata, "rotate", rotate_buf, 0);
3039 // transform the display width/height according to the matrix
3040 // to keep the same scale, use [width height 1<<16]
3041 if (width && height && sc->display_matrix) {
3042 double disp_transform[2];
3044 #define SQR(a) ((a)*(double)(a))
3045 for (i = 0; i < 2; i++)
3046 disp_transform[i] = sqrt(SQR(display_matrix[i][0]) + SQR(display_matrix[i][1]));
3048 if (disp_transform[0] > 0 && disp_transform[1] > 0 &&
3049 disp_transform[0] < (1<<24) && disp_transform[1] < (1<<24) &&
3050 fabs((disp_transform[0] / disp_transform[1]) - 1.0) > 0.01)
3051 st->sample_aspect_ratio = av_d2q(
3052 disp_transform[0] / disp_transform[1],
3058 static int mov_read_tfhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3060 MOVFragment *frag = &c->fragment;
3061 MOVTrackExt *trex = NULL;
3062 MOVFragmentIndex* index = NULL;
3063 int flags, track_id, i;
3065 avio_r8(pb); /* version */
3066 flags = avio_rb24(pb);
3068 track_id = avio_rb32(pb);
3070 return AVERROR_INVALIDDATA;
3071 frag->track_id = track_id;
3072 for (i = 0; i < c->trex_count; i++)
3073 if (c->trex_data[i].track_id == frag->track_id) {
3074 trex = &c->trex_data[i];
3078 av_log(c->fc, AV_LOG_ERROR, "could not find corresponding trex\n");
3079 return AVERROR_INVALIDDATA;
3081 for (i = 0; i < c->fragment_index_count; i++) {
3082 MOVFragmentIndex* candidate = c->fragment_index_data[i];
3083 if (candidate->track_id == frag->track_id) {
3084 av_log(c->fc, AV_LOG_DEBUG,
3085 "found fragment index for track %u\n", frag->track_id);
3091 frag->base_data_offset = flags & MOV_TFHD_BASE_DATA_OFFSET ?
3092 avio_rb64(pb) : flags & MOV_TFHD_DEFAULT_BASE_IS_MOOF ?
3093 frag->moof_offset : frag->implicit_offset;
3094 frag->stsd_id = flags & MOV_TFHD_STSD_ID ? avio_rb32(pb) : trex->stsd_id;
3096 frag->duration = flags & MOV_TFHD_DEFAULT_DURATION ?
3097 avio_rb32(pb) : trex->duration;
3098 frag->size = flags & MOV_TFHD_DEFAULT_SIZE ?
3099 avio_rb32(pb) : trex->size;
3100 frag->flags = flags & MOV_TFHD_DEFAULT_FLAGS ?
3101 avio_rb32(pb) : trex->flags;
3102 frag->time = AV_NOPTS_VALUE;
3105 for (i = index->current_item; i < index->item_count; i++) {
3106 if (frag->implicit_offset == index->items[i].moof_offset) {
3107 av_log(c->fc, AV_LOG_DEBUG, "found fragment index entry "
3108 "for track %u and moof_offset %"PRId64"\n",
3109 frag->track_id, index->items[i].moof_offset);
3110 frag->time = index->items[i].time;
3111 index->current_item = i + 1;
3116 av_log(c->fc, AV_LOG_WARNING, "track %u has a fragment index "
3117 "but it doesn't have an (in-order) entry for moof_offset "
3118 "%"PRId64"\n", frag->track_id, frag->implicit_offset);
3121 av_log(c->fc, AV_LOG_TRACE, "frag flags 0x%x\n", frag->flags);
3125 static int mov_read_chap(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3127 c->chapter_track = avio_rb32(pb);
3131 static int mov_read_trex(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3136 if ((uint64_t)c->trex_count+1 >= UINT_MAX / sizeof(*c->trex_data))
3137 return AVERROR_INVALIDDATA;
3138 if ((err = av_reallocp_array(&c->trex_data, c->trex_count + 1,
3139 sizeof(*c->trex_data))) < 0) {
3144 c->fc->duration = AV_NOPTS_VALUE; // the duration from mvhd is not representing the whole file when fragments are used.
3146 trex = &c->trex_data[c->trex_count++];
3147 avio_r8(pb); /* version */
3148 avio_rb24(pb); /* flags */
3149 trex->track_id = avio_rb32(pb);
3150 trex->stsd_id = avio_rb32(pb);
3151 trex->duration = avio_rb32(pb);
3152 trex->size = avio_rb32(pb);
3153 trex->flags = avio_rb32(pb);
3157 static int mov_read_tfdt(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3159 MOVFragment *frag = &c->fragment;
3160 AVStream *st = NULL;
3161 MOVStreamContext *sc;
3164 for (i = 0; i < c->fc->nb_streams; i++) {
3165 if (c->fc->streams[i]->id == frag->track_id) {
3166 st = c->fc->streams[i];
3171 av_log(c->fc, AV_LOG_ERROR, "could not find corresponding track id %d\n", frag->track_id);
3172 return AVERROR_INVALIDDATA;
3175 if (sc->pseudo_stream_id + 1 != frag->stsd_id)
3177 version = avio_r8(pb);
3178 avio_rb24(pb); /* flags */
3180 sc->track_end = avio_rb64(pb);
3182 sc->track_end = avio_rb32(pb);
3187 static int mov_read_trun(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3189 MOVFragment *frag = &c->fragment;
3190 AVStream *st = NULL;
3191 MOVStreamContext *sc;
3195 int data_offset = 0;
3196 unsigned entries, first_sample_flags = frag->flags;
3197 int flags, distance, i, found_keyframe = 0, err;
3199 for (i = 0; i < c->fc->nb_streams; i++) {
3200 if (c->fc->streams[i]->id == frag->track_id) {
3201 st = c->fc->streams[i];
3206 av_log(c->fc, AV_LOG_ERROR, "could not find corresponding track id %d\n", frag->track_id);
3207 return AVERROR_INVALIDDATA;
3210 if (sc->pseudo_stream_id+1 != frag->stsd_id && sc->pseudo_stream_id != -1)
3212 avio_r8(pb); /* version */
3213 flags = avio_rb24(pb);
3214 entries = avio_rb32(pb);
3215 av_log(c->fc, AV_LOG_TRACE, "flags 0x%x entries %d\n", flags, entries);
3217 /* Always assume the presence of composition time offsets.
3218 * Without this assumption, for instance, we cannot deal with a track in fragmented movies that meet the following.
3219 * 1) in the initial movie, there are no samples.
3220 * 2) in the first movie fragment, there is only one sample without composition time offset.
3221 * 3) in the subsequent movie fragments, there are samples with composition time offset. */
3222 if (!sc->ctts_count && sc->sample_count)
3224 /* Complement ctts table if moov atom doesn't have ctts atom. */
3225 ctts_data = av_realloc(NULL, sizeof(*sc->ctts_data));
3227 return AVERROR(ENOMEM);
3228 sc->ctts_data = ctts_data;
3229 sc->ctts_data[sc->ctts_count].count = sc->sample_count;
3230 sc->ctts_data[sc->ctts_count].duration = 0;
3233 if ((uint64_t)entries+sc->ctts_count >= UINT_MAX/sizeof(*sc->ctts_data))
3234 return AVERROR_INVALIDDATA;
3235 if ((err = av_reallocp_array(&sc->ctts_data, entries + sc->ctts_count,
3236 sizeof(*sc->ctts_data))) < 0) {
3240 if (flags & MOV_TRUN_DATA_OFFSET) data_offset = avio_rb32(pb);
3241 if (flags & MOV_TRUN_FIRST_SAMPLE_FLAGS) first_sample_flags = avio_rb32(pb);
3242 dts = sc->track_end - sc->time_offset;
3243 offset = frag->base_data_offset + data_offset;
3245 av_log(c->fc, AV_LOG_TRACE, "first sample flags 0x%x\n", first_sample_flags);
3246 for (i = 0; i < entries && !pb->eof_reached; i++) {
3247 unsigned sample_size = frag->size;
3248 int sample_flags = i ? frag->flags : first_sample_flags;
3249 unsigned sample_duration = frag->duration;
3252 if (flags & MOV_TRUN_SAMPLE_DURATION) sample_duration = avio_rb32(pb);
3253 if (flags & MOV_TRUN_SAMPLE_SIZE) sample_size = avio_rb32(pb);
3254 if (flags & MOV_TRUN_SAMPLE_FLAGS) sample_flags = avio_rb32(pb);
3255 sc->ctts_data[sc->ctts_count].count = 1;
3256 sc->ctts_data[sc->ctts_count].duration = (flags & MOV_TRUN_SAMPLE_CTS) ?
3258 mov_update_dts_shift(sc, sc->ctts_data[sc->ctts_count].duration);
3259 if (frag->time != AV_NOPTS_VALUE) {
3260 if (c->use_mfra_for == FF_MOV_FLAG_MFRA_PTS) {
3261 int64_t pts = frag->time;
3262 av_log(c->fc, AV_LOG_DEBUG, "found frag time %"PRId64
3263 " sc->dts_shift %d ctts.duration %d"
3264 " sc->time_offset %"PRId64" flags & MOV_TRUN_SAMPLE_CTS %d\n", pts,
3265 sc->dts_shift, sc->ctts_data[sc->ctts_count].duration,
3266 sc->time_offset, flags & MOV_TRUN_SAMPLE_CTS);
3267 dts = pts - sc->dts_shift;
3268 if (flags & MOV_TRUN_SAMPLE_CTS) {
3269 dts -= sc->ctts_data[sc->ctts_count].duration;
3271 dts -= sc->time_offset;
3273 av_log(c->fc, AV_LOG_DEBUG, "calculated into dts %"PRId64"\n", dts);
3276 av_log(c->fc, AV_LOG_DEBUG, "found frag time %"PRId64
3277 ", using it for dts\n", dts);
3279 frag->time = AV_NOPTS_VALUE;
3282 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
3284 else if (!found_keyframe)
3285 keyframe = found_keyframe =
3286 !(sample_flags & (MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC |
3287 MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES));
3290 err = av_add_index_entry(st, offset, dts, sample_size, distance,
3291 keyframe ? AVINDEX_KEYFRAME : 0);
3293 av_log(c->fc, AV_LOG_ERROR, "Failed to add index entry\n");
3295 av_log(c->fc, AV_LOG_TRACE, "AVIndex stream %d, sample %d, offset %"PRIx64", dts %"PRId64", "
3296 "size %d, distance %d, keyframe %d\n", st->index, sc->sample_count+i,
3297 offset, dts, sample_size, distance, keyframe);
3299 dts += sample_duration;
3300 offset += sample_size;
3301 sc->data_size += sample_size;
3302 sc->duration_for_fps += sample_duration;
3303 sc->nb_frames_for_fps ++;
3306 if (pb->eof_reached)
3309 frag->implicit_offset = offset;
3310 st->duration = sc->track_end = dts + sc->time_offset;
3314 /* this atom should be null (from specs), but some buggy files put the 'moov' atom inside it... */
3315 /* like the files created with Adobe Premiere 5.0, for samples see */
3316 /* http://graphics.tudelft.nl/~wouter/publications/soundtests/ */
3317 static int mov_read_wide(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3322 return 0; /* continue */
3323 if (avio_rb32(pb) != 0) { /* 0 sized mdat atom... use the 'wide' atom size */
3324 avio_skip(pb, atom.size - 4);
3327 atom.type = avio_rl32(pb);
3329 if (atom.type != MKTAG('m','d','a','t')) {
3330 avio_skip(pb, atom.size);
3333 err = mov_read_mdat(c, pb, atom);
3337 static int mov_read_cmov(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3342 uint8_t *moov_data; /* uncompressed data */
3343 long cmov_len, moov_len;
3346 avio_rb32(pb); /* dcom atom */
3347 if (avio_rl32(pb) != MKTAG('d','c','o','m'))
3348 return AVERROR_INVALIDDATA;
3349 if (avio_rl32(pb) != MKTAG('z','l','i','b')) {
3350 av_log(c->fc, AV_LOG_ERROR, "unknown compression for cmov atom !\n");
3351 return AVERROR_INVALIDDATA;
3353 avio_rb32(pb); /* cmvd atom */
3354 if (avio_rl32(pb) != MKTAG('c','m','v','d'))
3355 return AVERROR_INVALIDDATA;
3356 moov_len = avio_rb32(pb); /* uncompressed size */
3357 cmov_len = atom.size - 6 * 4;
3359 cmov_data = av_malloc(cmov_len);
3361 return AVERROR(ENOMEM);
3362 moov_data = av_malloc(moov_len);
3365 return AVERROR(ENOMEM);
3367 if (avio_read(pb, cmov_data, cmov_len) != cmov_len) {
3368 av_freep(&cmov_data);
3369 av_freep(&moov_data);
3370 return AVERROR_INVALIDDATA;
3372 if (uncompress (moov_data, (uLongf *) &moov_len, (const Bytef *)cmov_data, cmov_len) != Z_OK)
3373 goto free_and_return;
3374 if (ffio_init_context(&ctx, moov_data, moov_len, 0, NULL, NULL, NULL, NULL) != 0)
3375 goto free_and_return;
3376 ctx.seekable = AVIO_SEEKABLE_NORMAL;
3377 atom.type = MKTAG('m','o','o','v');
3378 atom.size = moov_len;
3379 ret = mov_read_default(c, &ctx, atom);
3385 av_log(c->fc, AV_LOG_ERROR, "this file requires zlib support compiled in\n");
3386 return AVERROR(ENOSYS);
3390 /* edit list atom */
3391 static int mov_read_elst(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3393 MOVStreamContext *sc;
3394 int i, edit_count, version;
3396 if (c->fc->nb_streams < 1 || c->ignore_editlist)
3398 sc = c->fc->streams[c->fc->nb_streams-1]->priv_data;
3400 version = avio_r8(pb); /* version */
3401 avio_rb24(pb); /* flags */
3402 edit_count = avio_rb32(pb); /* entries */
3407 av_log(c->fc, AV_LOG_WARNING, "Duplicated ELST atom\n");
3408 av_free(sc->elst_data);
3410 sc->elst_data = av_malloc_array(edit_count, sizeof(*sc->elst_data));
3412 return AVERROR(ENOMEM);
3414 av_log(c->fc, AV_LOG_TRACE, "track[%i].edit_count = %i\n", c->fc->nb_streams-1, edit_count);
3415 for (i = 0; i < edit_count && !pb->eof_reached; i++) {
3416 MOVElst *e = &sc->elst_data[i];
3419 e->duration = avio_rb64(pb);
3420 e->time = avio_rb64(pb);
3422 e->duration = avio_rb32(pb); /* segment duration */
3423 e->time = (int32_t)avio_rb32(pb); /* media time */
3425 e->rate = avio_rb32(pb) / 65536.0;
3426 av_log(c->fc, AV_LOG_TRACE, "duration=%"PRId64" time=%"PRId64" rate=%f\n",
3427 e->duration, e->time, e->rate);
3434 static int mov_read_tmcd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3436 MOVStreamContext *sc;
3438 if (c->fc->nb_streams < 1)
3439 return AVERROR_INVALIDDATA;
3440 sc = c->fc->streams[c->fc->nb_streams - 1]->priv_data;
3441 sc->timecode_track = avio_rb32(pb);
3445 static int mov_read_uuid(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3449 static const uint8_t uuid_isml_manifest[] = {
3450 0xa5, 0xd4, 0x0b, 0x30, 0xe8, 0x14, 0x11, 0xdd,
3451 0xba, 0x2f, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66
3454 if (atom.size < sizeof(uuid) || atom.size == INT64_MAX)
3455 return AVERROR_INVALIDDATA;
3457 ret = avio_read(pb, uuid, sizeof(uuid));
3460 } else if (ret != sizeof(uuid)) {
3461 return AVERROR_INVALIDDATA;
3463 if (!memcmp(uuid, uuid_isml_manifest, sizeof(uuid))) {
3464 uint8_t *buffer, *ptr;
3466 size_t len = atom.size - sizeof(uuid);
3469 return AVERROR_INVALIDDATA;
3471 ret = avio_skip(pb, 4); // zeroes
3474 buffer = av_mallocz(len + 1);
3476 return AVERROR(ENOMEM);
3478 ret = avio_read(pb, buffer, len);
3482 } else if (ret != len) {
3484 return AVERROR_INVALIDDATA;
3488 while ((ptr = av_stristr(ptr, "systemBitrate=\""))) {
3489 ptr += sizeof("systemBitrate=\"") - 1;
3490 c->bitrates_count++;
3491 c->bitrates = av_realloc_f(c->bitrates, c->bitrates_count, sizeof(*c->bitrates));
3493 c->bitrates_count = 0;
3495 return AVERROR(ENOMEM);
3498 ret = strtol(ptr, &endptr, 10);
3499 if (ret < 0 || errno || *endptr != '"') {
3500 c->bitrates[c->bitrates_count - 1] = 0;
3502 c->bitrates[c->bitrates_count - 1] = ret;
3511 static int mov_read_free(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3514 uint8_t content[16];
3519 ret = avio_read(pb, content, FFMIN(sizeof(content), atom.size));
3525 && !memcmp(content, "Anevia\x1A\x1A", 8)
3526 && c->use_mfra_for == FF_MOV_FLAG_MFRA_AUTO) {
3527 c->use_mfra_for = FF_MOV_FLAG_MFRA_PTS;
3533 static const MOVParseTableEntry mov_default_parse_table[] = {
3534 { MKTAG('A','C','L','R'), mov_read_aclr },
3535 { MKTAG('A','P','R','G'), mov_read_avid },
3536 { MKTAG('A','A','L','P'), mov_read_avid },
3537 { MKTAG('A','R','E','S'), mov_read_ares },
3538 { MKTAG('a','v','s','s'), mov_read_avss },
3539 { MKTAG('c','h','p','l'), mov_read_chpl },
3540 { MKTAG('c','o','6','4'), mov_read_stco },
3541 { MKTAG('c','o','l','r'), mov_read_colr },
3542 { MKTAG('c','t','t','s'), mov_read_ctts }, /* composition time to sample */
3543 { MKTAG('d','i','n','f'), mov_read_default },
3544 { MKTAG('D','p','x','E'), mov_read_dpxe },
3545 { MKTAG('d','r','e','f'), mov_read_dref },
3546 { MKTAG('e','d','t','s'), mov_read_default },
3547 { MKTAG('e','l','s','t'), mov_read_elst },
3548 { MKTAG('e','n','d','a'), mov_read_enda },
3549 { MKTAG('f','i','e','l'), mov_read_fiel },
3550 { MKTAG('f','t','y','p'), mov_read_ftyp },
3551 { MKTAG('g','l','b','l'), mov_read_glbl },
3552 { MKTAG('h','d','l','r'), mov_read_hdlr },
3553 { MKTAG('i','l','s','t'), mov_read_ilst },
3554 { MKTAG('j','p','2','h'), mov_read_jp2h },
3555 { MKTAG('m','d','a','t'), mov_read_mdat },
3556 { MKTAG('m','d','h','d'), mov_read_mdhd },
3557 { MKTAG('m','d','i','a'), mov_read_default },
3558 { MKTAG('m','e','t','a'), mov_read_meta },
3559 { MKTAG('m','i','n','f'), mov_read_default },
3560 { MKTAG('m','o','o','f'), mov_read_moof },
3561 { MKTAG('m','o','o','v'), mov_read_moov },
3562 { MKTAG('m','v','e','x'), mov_read_default },
3563 { MKTAG('m','v','h','d'), mov_read_mvhd },
3564 { MKTAG('S','M','I',' '), mov_read_svq3 },
3565 { MKTAG('a','l','a','c'), mov_read_alac }, /* alac specific atom */
3566 { MKTAG('a','v','c','C'), mov_read_glbl },
3567 { MKTAG('p','a','s','p'), mov_read_pasp },
3568 { MKTAG('s','t','b','l'), mov_read_default },
3569 { MKTAG('s','t','c','o'), mov_read_stco },
3570 { MKTAG('s','t','p','s'), mov_read_stps },
3571 { MKTAG('s','t','r','f'), mov_read_strf },
3572 { MKTAG('s','t','s','c'), mov_read_stsc },
3573 { MKTAG('s','t','s','d'), mov_read_stsd }, /* sample description */
3574 { MKTAG('s','t','s','s'), mov_read_stss }, /* sync sample */
3575 { MKTAG('s','t','s','z'), mov_read_stsz }, /* sample size */
3576 { MKTAG('s','t','t','s'), mov_read_stts },
3577 { MKTAG('s','t','z','2'), mov_read_stsz }, /* compact sample size */
3578 { MKTAG('t','k','h','d'), mov_read_tkhd }, /* track header */
3579 { MKTAG('t','f','d','t'), mov_read_tfdt },
3580 { MKTAG('t','f','h','d'), mov_read_tfhd }, /* track fragment header */
3581 { MKTAG('t','r','a','k'), mov_read_trak },
3582 { MKTAG('t','r','a','f'), mov_read_default },
3583 { MKTAG('t','r','e','f'), mov_read_default },
3584 { MKTAG('t','m','c','d'), mov_read_tmcd },
3585 { MKTAG('c','h','a','p'), mov_read_chap },
3586 { MKTAG('t','r','e','x'), mov_read_trex },
3587 { MKTAG('t','r','u','n'), mov_read_trun },
3588 { MKTAG('u','d','t','a'), mov_read_default },
3589 { MKTAG('w','a','v','e'), mov_read_wave },
3590 { MKTAG('e','s','d','s'), mov_read_esds },
3591 { MKTAG('d','a','c','3'), mov_read_dac3 }, /* AC-3 info */
3592 { MKTAG('d','e','c','3'), mov_read_dec3 }, /* EAC-3 info */
3593 { MKTAG('w','i','d','e'), mov_read_wide }, /* place holder */
3594 { MKTAG('w','f','e','x'), mov_read_wfex },
3595 { MKTAG('c','m','o','v'), mov_read_cmov },
3596 { MKTAG('c','h','a','n'), mov_read_chan }, /* channel layout */
3597 { MKTAG('d','v','c','1'), mov_read_dvc1 },
3598 { MKTAG('s','b','g','p'), mov_read_sbgp },
3599 { MKTAG('h','v','c','C'), mov_read_glbl },
3600 { MKTAG('u','u','i','d'), mov_read_uuid },
3601 { MKTAG('C','i','n', 0x8e), mov_read_targa_y216 },
3602 { MKTAG('f','r','e','e'), mov_read_free },
3603 { MKTAG('-','-','-','-'), mov_read_custom },
3607 static int mov_read_default(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3609 int64_t total_size = 0;
3613 if (c->atom_depth > 10) {
3614 av_log(c->fc, AV_LOG_ERROR, "Atoms too deeply nested\n");
3615 return AVERROR_INVALIDDATA;
3620 atom.size = INT64_MAX;
3621 while (total_size + 8 <= atom.size && !avio_feof(pb)) {
3622 int (*parse)(MOVContext*, AVIOContext*, MOVAtom) = NULL;
3625 if (atom.size >= 8) {
3626 a.size = avio_rb32(pb);
3627 a.type = avio_rl32(pb);
3628 if (a.type == MKTAG('f','r','e','e') &&
3632 uint32_t *type = (uint32_t *)buf + 1;
3633 if (avio_read(pb, buf, 8) != 8)
3634 return AVERROR_INVALIDDATA;
3635 avio_seek(pb, -8, SEEK_CUR);
3636 if (*type == MKTAG('m','v','h','d') ||
3637 *type == MKTAG('c','m','o','v')) {
3638 av_log(c->fc, AV_LOG_ERROR, "Detected moov in a free atom.\n");
3639 a.type = MKTAG('m','o','o','v');
3642 if (atom.type != MKTAG('r','o','o','t') &&
3643 atom.type != MKTAG('m','o','o','v'))
3645 if (a.type == MKTAG('t','r','a','k') || a.type == MKTAG('m','d','a','t'))
3647 av_log(c->fc, AV_LOG_ERROR, "Broken file, trak/mdat not at top-level\n");
3654 if (a.size == 1 && total_size + 8 <= atom.size) { /* 64 bit extended size */
3655 a.size = avio_rb64(pb) - 8;
3659 av_log(c->fc, AV_LOG_TRACE, "type: %08x '%.4s' parent:'%.4s' sz: %"PRId64" %"PRId64" %"PRId64"\n",
3660 a.type, (char*)&a.type, (char*)&atom.type, a.size, total_size, atom.size);
3662 a.size = atom.size - total_size + 8;
3667 a.size = FFMIN(a.size, atom.size - total_size);
3669 for (i = 0; mov_default_parse_table[i].type; i++)
3670 if (mov_default_parse_table[i].type == a.type) {
3671 parse = mov_default_parse_table[i].parse;
3675 // container is user data
3676 if (!parse && (atom.type == MKTAG('u','d','t','a') ||
3677 atom.type == MKTAG('i','l','s','t')))
3678 parse = mov_read_udta_string;
3680 if (!parse) { /* skip leaf atoms data */
3681 avio_skip(pb, a.size);
3683 int64_t start_pos = avio_tell(pb);
3685 int err = parse(c, pb, a);
3690 if (c->found_moov && c->found_mdat &&
3691 ((!pb->seekable || c->fc->flags & AVFMT_FLAG_IGNIDX) ||
3692 start_pos + a.size == avio_size(pb))) {
3693 if (!pb->seekable || c->fc->flags & AVFMT_FLAG_IGNIDX)
3694 c->next_root_atom = start_pos + a.size;
3698 left = a.size - avio_tell(pb) + start_pos;
3699 if (left > 0) /* skip garbage at atom end */
3700 avio_skip(pb, left);
3701 else if (left < 0) {
3702 av_log(c->fc, AV_LOG_WARNING,
3703 "overread end of atom '%.4s' by %"PRId64" bytes\n",
3704 (char*)&a.type, -left);
3705 avio_seek(pb, left, SEEK_CUR);
3709 total_size += a.size;
3712 if (total_size < atom.size && atom.size < 0x7ffff)
3713 avio_skip(pb, atom.size - total_size);
3719 static int mov_probe(AVProbeData *p)
3724 int moov_offset = -1;
3726 /* check file header */
3729 /* ignore invalid offset */
3730 if ((offset + 8) > (unsigned int)p->buf_size)
3732 tag = AV_RL32(p->buf + offset + 4);
3734 /* check for obvious tags */
3735 case MKTAG('m','o','o','v'):
3736 moov_offset = offset + 4;
3737 case MKTAG('m','d','a','t'):
3738 case MKTAG('p','n','o','t'): /* detect movs with preview pics like ew.mov and april.mov */
3739 case MKTAG('u','d','t','a'): /* Packet Video PVAuthor adds this and a lot of more junk */
3740 case MKTAG('f','t','y','p'):
3741 if (AV_RB32(p->buf+offset) < 8 &&
3742 (AV_RB32(p->buf+offset) != 1 ||
3743 offset + 12 > (unsigned int)p->buf_size ||
3744 AV_RB64(p->buf+offset + 8) == 0)) {
3745 score = FFMAX(score, AVPROBE_SCORE_EXTENSION);
3746 } else if (tag == MKTAG('f','t','y','p') &&
3747 ( AV_RL32(p->buf + offset + 8) == MKTAG('j','p','2',' ')
3748 || AV_RL32(p->buf + offset + 8) == MKTAG('j','p','x',' ')
3750 score = FFMAX(score, 5);
3752 score = AVPROBE_SCORE_MAX;
3754 offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
3756 /* those are more common words, so rate then a bit less */
3757 case MKTAG('e','d','i','w'): /* xdcam files have reverted first tags */
3758 case MKTAG('w','i','d','e'):
3759 case MKTAG('f','r','e','e'):
3760 case MKTAG('j','u','n','k'):
3761 case MKTAG('p','i','c','t'):
3762 score = FFMAX(score, AVPROBE_SCORE_MAX - 5);
3763 offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
3765 case MKTAG(0x82,0x82,0x7f,0x7d):
3766 case MKTAG('s','k','i','p'):
3767 case MKTAG('u','u','i','d'):
3768 case MKTAG('p','r','f','l'):
3769 /* if we only find those cause probedata is too small at least rate them */
3770 score = FFMAX(score, AVPROBE_SCORE_EXTENSION);
3771 offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
3774 offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
3777 if(score > AVPROBE_SCORE_MAX - 50 && moov_offset != -1) {
3778 /* moov atom in the header - we should make sure that this is not a
3779 * MOV-packed MPEG-PS */
3780 offset = moov_offset;
3782 while(offset < (p->buf_size - 16)){ /* Sufficient space */
3783 /* We found an actual hdlr atom */
3784 if(AV_RL32(p->buf + offset ) == MKTAG('h','d','l','r') &&
3785 AV_RL32(p->buf + offset + 8) == MKTAG('m','h','l','r') &&
3786 AV_RL32(p->buf + offset + 12) == MKTAG('M','P','E','G')){
3787 av_log(NULL, AV_LOG_WARNING, "Found media data tag MPEG indicating this is a MOV-packed MPEG-PS.\n");
3788 /* We found a media handler reference atom describing an
3789 * MPEG-PS-in-MOV, return a
3790 * low score to force expanding the probe window until
3791 * mpegps_probe finds what it needs */
3802 // must be done after parsing all trak because there's no order requirement
3803 static void mov_read_chapters(AVFormatContext *s)
3805 MOVContext *mov = s->priv_data;
3806 AVStream *st = NULL;
3807 MOVStreamContext *sc;
3811 for (i = 0; i < s->nb_streams; i++)
3812 if (s->streams[i]->id == mov->chapter_track) {
3817 av_log(s, AV_LOG_ERROR, "Referenced QT chapter track not found\n");
3821 st->discard = AVDISCARD_ALL;
3823 cur_pos = avio_tell(sc->pb);
3825 for (i = 0; i < st->nb_index_entries; i++) {
3826 AVIndexEntry *sample = &st->index_entries[i];
3827 int64_t end = i+1 < st->nb_index_entries ? st->index_entries[i+1].timestamp : st->duration;
3832 if (end < sample->timestamp) {
3833 av_log(s, AV_LOG_WARNING, "ignoring stream duration which is shorter than chapters\n");
3834 end = AV_NOPTS_VALUE;
3837 if (avio_seek(sc->pb, sample->pos, SEEK_SET) != sample->pos) {
3838 av_log(s, AV_LOG_ERROR, "Chapter %d not found in file\n", i);
3842 // the first two bytes are the length of the title
3843 len = avio_rb16(sc->pb);
3844 if (len > sample->size-2)
3846 title_len = 2*len + 1;
3847 if (!(title = av_mallocz(title_len)))
3850 // The samples could theoretically be in any encoding if there's an encd
3851 // atom following, but in practice are only utf-8 or utf-16, distinguished
3852 // instead by the presence of a BOM
3856 ch = avio_rb16(sc->pb);
3858 avio_get_str16be(sc->pb, len, title, title_len);
3859 else if (ch == 0xfffe)
3860 avio_get_str16le(sc->pb, len, title, title_len);
3863 if (len == 1 || len == 2)
3866 avio_get_str(sc->pb, INT_MAX, title + 2, len - 1);
3870 avpriv_new_chapter(s, i, st->time_base, sample->timestamp, end, title);
3874 avio_seek(sc->pb, cur_pos, SEEK_SET);
3877 static int parse_timecode_in_framenum_format(AVFormatContext *s, AVStream *st,
3878 uint32_t value, int flags)
3881 char buf[AV_TIMECODE_STR_SIZE];
3882 AVRational rate = {st->codec->time_base.den,
3883 st->codec->time_base.num};
3884 int ret = av_timecode_init(&tc, rate, flags, 0, s);
3887 av_dict_set(&st->metadata, "timecode",
3888 av_timecode_make_string(&tc, buf, value), 0);
3892 static int mov_read_timecode_track(AVFormatContext *s, AVStream *st)
3894 MOVStreamContext *sc = st->priv_data;
3896 int64_t cur_pos = avio_tell(sc->pb);
3899 if (!st->nb_index_entries)
3902 avio_seek(sc->pb, st->index_entries->pos, SEEK_SET);
3903 value = avio_rb32(s->pb);
3905 if (sc->tmcd_flags & 0x0001) flags |= AV_TIMECODE_FLAG_DROPFRAME;
3906 if (sc->tmcd_flags & 0x0002) flags |= AV_TIMECODE_FLAG_24HOURSMAX;
3907 if (sc->tmcd_flags & 0x0004) flags |= AV_TIMECODE_FLAG_ALLOWNEGATIVE;
3909 /* Assume Counter flag is set to 1 in tmcd track (even though it is likely
3910 * not the case) and thus assume "frame number format" instead of QT one.
3911 * No sample with tmcd track can be found with a QT timecode at the moment,
3912 * despite what the tmcd track "suggests" (Counter flag set to 0 means QT
3914 parse_timecode_in_framenum_format(s, st, value, flags);
3916 avio_seek(sc->pb, cur_pos, SEEK_SET);
3920 static int mov_read_close(AVFormatContext *s)
3922 MOVContext *mov = s->priv_data;
3925 for (i = 0; i < s->nb_streams; i++) {
3926 AVStream *st = s->streams[i];
3927 MOVStreamContext *sc = st->priv_data;
3929 av_freep(&sc->ctts_data);
3930 for (j = 0; j < sc->drefs_count; j++) {
3931 av_freep(&sc->drefs[j].path);
3932 av_freep(&sc->drefs[j].dir);
3934 av_freep(&sc->drefs);
3936 sc->drefs_count = 0;
3938 if (!sc->pb_is_copied)
3939 avio_closep(&sc->pb);
3942 av_freep(&sc->chunk_offsets);
3943 av_freep(&sc->stsc_data);
3944 av_freep(&sc->sample_sizes);
3945 av_freep(&sc->keyframes);
3946 av_freep(&sc->stts_data);
3947 av_freep(&sc->stps_data);
3948 av_freep(&sc->elst_data);
3949 av_freep(&sc->rap_group);
3950 av_freep(&sc->display_matrix);
3953 if (mov->dv_demux) {
3954 avformat_free_context(mov->dv_fctx);
3955 mov->dv_fctx = NULL;
3958 av_freep(&mov->trex_data);
3959 av_freep(&mov->bitrates);
3961 for (i = 0; i < mov->fragment_index_count; i++) {
3962 MOVFragmentIndex* index = mov->fragment_index_data[i];
3963 av_freep(&index->items);
3964 av_freep(&mov->fragment_index_data[i]);
3966 av_freep(&mov->fragment_index_data);
3971 static int tmcd_is_referenced(AVFormatContext *s, int tmcd_id)
3975 for (i = 0; i < s->nb_streams; i++) {
3976 AVStream *st = s->streams[i];
3977 MOVStreamContext *sc = st->priv_data;
3979 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
3980 sc->timecode_track == tmcd_id)
3986 /* look for a tmcd track not referenced by any video track, and export it globally */
3987 static void export_orphan_timecode(AVFormatContext *s)
3991 for (i = 0; i < s->nb_streams; i++) {
3992 AVStream *st = s->streams[i];
3994 if (st->codec->codec_tag == MKTAG('t','m','c','d') &&
3995 !tmcd_is_referenced(s, i + 1)) {
3996 AVDictionaryEntry *tcr = av_dict_get(st->metadata, "timecode", NULL, 0);
3998 av_dict_set(&s->metadata, "timecode", tcr->value, 0);
4005 static int read_tfra(MOVContext *mov, AVIOContext *f)
4007 MOVFragmentIndex* index = NULL;
4008 int version, fieldlength, i, j;
4009 int64_t pos = avio_tell(f);
4010 uint32_t size = avio_rb32(f);
4013 if (avio_rb32(f) != MKBETAG('t', 'f', 'r', 'a')) {
4016 av_log(mov->fc, AV_LOG_VERBOSE, "found tfra\n");
4017 index = av_mallocz(sizeof(MOVFragmentIndex));
4019 return AVERROR(ENOMEM);
4022 tmp = av_realloc_array(mov->fragment_index_data,
4023 mov->fragment_index_count + 1,
4024 sizeof(MOVFragmentIndex*));
4027 return AVERROR(ENOMEM);
4029 mov->fragment_index_data = tmp;
4030 mov->fragment_index_data[mov->fragment_index_count++] = index;
4032 version = avio_r8(f);
4034 index->track_id = avio_rb32(f);
4035 fieldlength = avio_rb32(f);
4036 index->item_count = avio_rb32(f);
4037 index->items = av_mallocz_array(
4038 index->item_count, sizeof(MOVFragmentIndexItem));
4039 if (!index->items) {
4040 index->item_count = 0;
4041 return AVERROR(ENOMEM);
4043 for (i = 0; i < index->item_count; i++) {
4044 int64_t time, offset;
4046 time = avio_rb64(f);
4047 offset = avio_rb64(f);
4049 time = avio_rb32(f);
4050 offset = avio_rb32(f);
4052 index->items[i].time = time;
4053 index->items[i].moof_offset = offset;
4054 for (j = 0; j < ((fieldlength >> 4) & 3) + 1; j++)
4056 for (j = 0; j < ((fieldlength >> 2) & 3) + 1; j++)
4058 for (j = 0; j < ((fieldlength >> 0) & 3) + 1; j++)
4062 avio_seek(f, pos + size, SEEK_SET);
4066 static int mov_read_mfra(MOVContext *c, AVIOContext *f)
4068 int64_t stream_size = avio_size(f);
4069 int64_t original_pos = avio_tell(f);
4073 if ((seek_ret = avio_seek(f, stream_size - 4, SEEK_SET)) < 0) {
4077 mfra_size = avio_rb32(f);
4078 if (mfra_size < 0 || mfra_size > stream_size) {
4079 av_log(c->fc, AV_LOG_DEBUG, "doesn't look like mfra (unreasonable size)\n");
4082 if ((seek_ret = avio_seek(f, -mfra_size, SEEK_CUR)) < 0) {
4086 if (avio_rb32(f) != mfra_size) {
4087 av_log(c->fc, AV_LOG_DEBUG, "doesn't look like mfra (size mismatch)\n");
4090 if (avio_rb32(f) != MKBETAG('m', 'f', 'r', 'a')) {
4091 av_log(c->fc, AV_LOG_DEBUG, "doesn't look like mfra (tag mismatch)\n");
4094 av_log(c->fc, AV_LOG_VERBOSE, "stream has mfra\n");
4096 ret = read_tfra(c, f);
4102 seek_ret = avio_seek(f, original_pos, SEEK_SET);
4104 av_log(c->fc, AV_LOG_ERROR,
4105 "failed to seek back after looking for mfra\n");
4111 static int mov_read_header(AVFormatContext *s)
4113 MOVContext *mov = s->priv_data;
4114 AVIOContext *pb = s->pb;
4116 MOVAtom atom = { AV_RL32("root") };
4120 /* .mov and .mp4 aren't streamable anyway (only progressive download if moov is before mdat) */
4122 atom.size = avio_size(pb);
4124 atom.size = INT64_MAX;
4126 /* check MOV header */
4128 if (mov->moov_retry)
4129 avio_seek(pb, 0, SEEK_SET);
4130 if ((err = mov_read_default(mov, pb, atom)) < 0) {
4131 av_log(s, AV_LOG_ERROR, "error reading header\n");
4135 } while (pb->seekable && !mov->found_moov && !mov->moov_retry++);
4136 if (!mov->found_moov) {
4137 av_log(s, AV_LOG_ERROR, "moov atom not found\n");
4139 return AVERROR_INVALIDDATA;
4141 av_log(mov->fc, AV_LOG_TRACE, "on_parse_exit_offset=%"PRId64"\n", avio_tell(pb));
4144 if (mov->chapter_track > 0)
4145 mov_read_chapters(s);
4146 for (i = 0; i < s->nb_streams; i++)
4147 if (s->streams[i]->codec->codec_tag == AV_RL32("tmcd"))
4148 mov_read_timecode_track(s, s->streams[i]);
4151 /* copy timecode metadata from tmcd tracks to the related video streams */
4152 for (i = 0; i < s->nb_streams; i++) {
4153 AVStream *st = s->streams[i];
4154 MOVStreamContext *sc = st->priv_data;
4155 if (sc->timecode_track > 0) {
4156 AVDictionaryEntry *tcr;
4157 int tmcd_st_id = -1;
4159 for (j = 0; j < s->nb_streams; j++)
4160 if (s->streams[j]->id == sc->timecode_track)
4163 if (tmcd_st_id < 0 || tmcd_st_id == i)
4165 tcr = av_dict_get(s->streams[tmcd_st_id]->metadata, "timecode", NULL, 0);
4167 av_dict_set(&st->metadata, "timecode", tcr->value, 0);
4170 export_orphan_timecode(s);
4172 for (i = 0; i < s->nb_streams; i++) {
4173 AVStream *st = s->streams[i];
4174 MOVStreamContext *sc = st->priv_data;
4175 fix_timescale(mov, sc);
4176 if(st->codec->codec_type == AVMEDIA_TYPE_AUDIO && st->codec->codec_id == AV_CODEC_ID_AAC) {
4177 st->skip_samples = sc->start_pad;
4179 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && sc->nb_frames_for_fps > 0 && sc->duration_for_fps > 0)
4180 av_reduce(&st->avg_frame_rate.num, &st->avg_frame_rate.den,
4181 sc->time_scale*(int64_t)sc->nb_frames_for_fps, sc->duration_for_fps, INT_MAX);
4182 if (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
4183 if (st->codec->width <= 0 || st->codec->height <= 0) {
4184 st->codec->width = sc->width;
4185 st->codec->height = sc->height;
4187 if (st->codec->codec_id == AV_CODEC_ID_DVD_SUBTITLE) {
4188 if ((err = mov_rewrite_dvd_sub_extradata(st)) < 0)
4194 if (mov->trex_data) {
4195 for (i = 0; i < s->nb_streams; i++) {
4196 AVStream *st = s->streams[i];
4197 MOVStreamContext *sc = st->priv_data;
4198 if (st->duration > 0)
4199 st->codec->bit_rate = sc->data_size * 8 * sc->time_scale / st->duration;
4203 if (mov->use_mfra_for > 0) {
4204 for (i = 0; i < s->nb_streams; i++) {
4205 AVStream *st = s->streams[i];
4206 MOVStreamContext *sc = st->priv_data;
4207 if (sc->duration_for_fps > 0) {
4208 st->codec->bit_rate = sc->data_size * 8 * sc->time_scale /
4209 sc->duration_for_fps;
4214 for (i = 0; i < mov->bitrates_count && i < s->nb_streams; i++) {
4215 if (mov->bitrates[i]) {
4216 s->streams[i]->codec->bit_rate = mov->bitrates[i];
4220 ff_rfps_calculate(s);
4222 for (i = 0; i < s->nb_streams; i++) {
4223 AVStream *st = s->streams[i];
4224 MOVStreamContext *sc = st->priv_data;
4226 switch (st->codec->codec_type) {
4227 case AVMEDIA_TYPE_AUDIO:
4228 err = ff_replaygain_export(st, s->metadata);
4234 case AVMEDIA_TYPE_VIDEO:
4235 if (sc->display_matrix) {
4236 AVPacketSideData *sd, *tmp;
4238 tmp = av_realloc_array(st->side_data,
4239 st->nb_side_data + 1, sizeof(*tmp));
4241 return AVERROR(ENOMEM);
4243 st->side_data = tmp;
4246 sd = &st->side_data[st->nb_side_data - 1];
4247 sd->type = AV_PKT_DATA_DISPLAYMATRIX;
4248 sd->size = sizeof(int32_t) * 9;
4249 sd->data = (uint8_t*)sc->display_matrix;
4250 sc->display_matrix = NULL;
4259 static AVIndexEntry *mov_find_next_sample(AVFormatContext *s, AVStream **st)
4261 AVIndexEntry *sample = NULL;
4262 int64_t best_dts = INT64_MAX;
4264 for (i = 0; i < s->nb_streams; i++) {
4265 AVStream *avst = s->streams[i];
4266 MOVStreamContext *msc = avst->priv_data;
4267 if (msc->pb && msc->current_sample < avst->nb_index_entries) {
4268 AVIndexEntry *current_sample = &avst->index_entries[msc->current_sample];
4269 int64_t dts = av_rescale(current_sample->timestamp, AV_TIME_BASE, msc->time_scale);
4270 av_log(s, AV_LOG_TRACE, "stream %d, sample %d, dts %"PRId64"\n", i, msc->current_sample, dts);
4271 if (!sample || (!s->pb->seekable && current_sample->pos < sample->pos) ||
4273 ((msc->pb != s->pb && dts < best_dts) || (msc->pb == s->pb &&
4274 ((FFABS(best_dts - dts) <= AV_TIME_BASE && current_sample->pos < sample->pos) ||
4275 (FFABS(best_dts - dts) > AV_TIME_BASE && dts < best_dts)))))) {
4276 sample = current_sample;
4285 static int mov_read_packet(AVFormatContext *s, AVPacket *pkt)
4287 MOVContext *mov = s->priv_data;
4288 MOVStreamContext *sc;
4289 AVIndexEntry *sample;
4290 AVStream *st = NULL;
4294 sample = mov_find_next_sample(s, &st);
4296 mov->found_mdat = 0;
4297 if (!mov->next_root_atom)
4299 if (avio_seek(s->pb, mov->next_root_atom, SEEK_SET) != mov->next_root_atom) {
4300 av_log(mov->fc, AV_LOG_ERROR, "next root atom offset 0x%"PRIx64": partial file\n", mov->next_root_atom);
4301 return AVERROR_INVALIDDATA;
4303 mov->next_root_atom = 0;
4304 if (mov_read_default(mov, s->pb, (MOVAtom){ AV_RL32("root"), INT64_MAX }) < 0 ||
4307 av_log(s, AV_LOG_TRACE, "read fragments, offset 0x%"PRIx64"\n", avio_tell(s->pb));
4311 /* must be done just before reading, to avoid infinite loop on sample */
4312 sc->current_sample++;
4314 if (mov->next_root_atom) {
4315 sample->pos = FFMIN(sample->pos, mov->next_root_atom);
4316 sample->size = FFMIN(sample->size, (mov->next_root_atom - sample->pos));
4319 if (st->discard != AVDISCARD_ALL) {
4320 if (avio_seek(sc->pb, sample->pos, SEEK_SET) != sample->pos) {
4321 av_log(mov->fc, AV_LOG_ERROR, "stream %d, offset 0x%"PRIx64": partial file\n",
4322 sc->ffindex, sample->pos);
4323 return AVERROR_INVALIDDATA;
4325 ret = av_get_packet(sc->pb, pkt, sample->size);
4328 if (sc->has_palette) {
4331 pal = av_packet_new_side_data(pkt, AV_PKT_DATA_PALETTE, AVPALETTE_SIZE);
4333 av_log(mov->fc, AV_LOG_ERROR, "Cannot append palette to packet\n");
4335 memcpy(pal, sc->palette, AVPALETTE_SIZE);
4336 sc->has_palette = 0;
4339 #if CONFIG_DV_DEMUXER
4340 if (mov->dv_demux && sc->dv_audio_container) {
4341 avpriv_dv_produce_packet(mov->dv_demux, pkt, pkt->data, pkt->size, pkt->pos);
4342 av_freep(&pkt->data);
4344 ret = avpriv_dv_get_packet(mov->dv_demux, pkt);
4351 pkt->stream_index = sc->ffindex;
4352 pkt->dts = sample->timestamp;
4353 if (sc->ctts_data && sc->ctts_index < sc->ctts_count) {
4354 pkt->pts = pkt->dts + sc->dts_shift + sc->ctts_data[sc->ctts_index].duration;
4355 /* update ctts context */
4357 if (sc->ctts_index < sc->ctts_count &&
4358 sc->ctts_data[sc->ctts_index].count == sc->ctts_sample) {
4360 sc->ctts_sample = 0;
4363 pkt->dts = AV_NOPTS_VALUE;
4365 int64_t next_dts = (sc->current_sample < st->nb_index_entries) ?
4366 st->index_entries[sc->current_sample].timestamp : st->duration;
4367 pkt->duration = next_dts - pkt->dts;
4368 pkt->pts = pkt->dts;
4370 if (st->discard == AVDISCARD_ALL)
4372 pkt->flags |= sample->flags & AVINDEX_KEYFRAME ? AV_PKT_FLAG_KEY : 0;
4373 pkt->pos = sample->pos;
4378 static int mov_seek_stream(AVFormatContext *s, AVStream *st, int64_t timestamp, int flags)
4380 MOVStreamContext *sc = st->priv_data;
4381 int sample, time_sample;
4384 sample = av_index_search_timestamp(st, timestamp, flags);
4385 av_log(s, AV_LOG_TRACE, "stream %d, timestamp %"PRId64", sample %d\n", st->index, timestamp, sample);
4386 if (sample < 0 && st->nb_index_entries && timestamp < st->index_entries[0].timestamp)
4388 if (sample < 0) /* not sure what to do */
4389 return AVERROR_INVALIDDATA;
4390 sc->current_sample = sample;
4391 av_log(s, AV_LOG_TRACE, "stream %d, found sample %d\n", st->index, sc->current_sample);
4392 /* adjust ctts index */
4393 if (sc->ctts_data) {
4395 for (i = 0; i < sc->ctts_count; i++) {
4396 int next = time_sample + sc->ctts_data[i].count;
4397 if (next > sc->current_sample) {
4399 sc->ctts_sample = sc->current_sample - time_sample;
4408 static int mov_read_seek(AVFormatContext *s, int stream_index, int64_t sample_time, int flags)
4410 MOVContext *mc = s->priv_data;
4415 if (stream_index >= s->nb_streams)
4416 return AVERROR_INVALIDDATA;
4418 st = s->streams[stream_index];
4419 sample = mov_seek_stream(s, st, sample_time, flags);
4423 if (mc->seek_individually) {
4424 /* adjust seek timestamp to found sample timestamp */
4425 int64_t seek_timestamp = st->index_entries[sample].timestamp;
4427 for (i = 0; i < s->nb_streams; i++) {
4429 MOVStreamContext *sc = s->streams[i]->priv_data;
4431 st->skip_samples = (sample_time <= 0) ? sc->start_pad : 0;
4433 if (stream_index == i)
4436 timestamp = av_rescale_q(seek_timestamp, s->streams[stream_index]->time_base, st->time_base);
4437 mov_seek_stream(s, st, timestamp, flags);
4440 for (i = 0; i < s->nb_streams; i++) {
4441 MOVStreamContext *sc;
4444 sc->current_sample = 0;
4447 MOVStreamContext *sc;
4448 AVIndexEntry *entry = mov_find_next_sample(s, &st);
4450 return AVERROR_INVALIDDATA;
4452 if (sc->ffindex == stream_index && sc->current_sample == sample)
4454 sc->current_sample++;
4460 #define OFFSET(x) offsetof(MOVContext, x)
4461 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM
4462 static const AVOption mov_options[] = {
4463 {"use_absolute_path",
4464 "allow using absolute path when opening alias, this is a possible security issue",
4465 OFFSET(use_absolute_path), FF_OPT_TYPE_INT, {.i64 = 0},
4467 {"seek_streams_individually",
4468 "Seek each stream individually to the to the closest point",
4469 OFFSET(seek_individually), AV_OPT_TYPE_INT, { .i64 = 1 },
4471 {"ignore_editlist", "", OFFSET(ignore_editlist), FF_OPT_TYPE_INT, {.i64 = 0},
4474 "use mfra for fragment timestamps",
4475 OFFSET(use_mfra_for), FF_OPT_TYPE_INT, {.i64 = FF_MOV_FLAG_MFRA_AUTO},
4476 -1, FF_MOV_FLAG_MFRA_PTS, FLAGS,
4478 {"auto", "auto", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_MFRA_AUTO}, 0, 0,
4479 FLAGS, "use_mfra_for" },
4480 {"dts", "dts", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_MFRA_DTS}, 0, 0,
4481 FLAGS, "use_mfra_for" },
4482 {"pts", "pts", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_MFRA_PTS}, 0, 0,
4483 FLAGS, "use_mfra_for" },
4484 { "export_all", "Export unrecognized metadata entries", OFFSET(export_all),
4485 AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, .flags = FLAGS },
4486 { "export_xmp", "Export full XMP metadata", OFFSET(export_xmp),
4487 AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, .flags = FLAGS },
4491 static const AVClass mov_class = {
4492 .class_name = "mov,mp4,m4a,3gp,3g2,mj2",
4493 .item_name = av_default_item_name,
4494 .option = mov_options,
4495 .version = LIBAVUTIL_VERSION_INT,
4498 AVInputFormat ff_mov_demuxer = {
4499 .name = "mov,mp4,m4a,3gp,3g2,mj2",
4500 .long_name = NULL_IF_CONFIG_SMALL("QuickTime / MOV"),
4501 .priv_class = &mov_class,
4502 .priv_data_size = sizeof(MOVContext),
4503 .extensions = "mov,mp4,m4a,3gp,3g2,mj2",
4504 .read_probe = mov_probe,
4505 .read_header = mov_read_header,
4506 .read_packet = mov_read_packet,
4507 .read_close = mov_read_close,
4508 .read_seek = mov_read_seek,
4509 .flags = AVFMT_NO_BYTE_SEEK,