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 };
210 uint16_t langcode = 0;
211 double longitude, latitude;
212 const char *key = "location";
214 if (len < 4 + 2 + 1 + 1 + 4 + 4 + 4)
215 return AVERROR_INVALIDDATA;
217 avio_skip(pb, 4); // version+flags
218 langcode = avio_rb16(pb);
219 ff_mov_lang_to_iso639(langcode, language);
222 len -= avio_get_str(pb, len, buf, sizeof(buf)); // place name
224 return AVERROR_INVALIDDATA;
225 avio_skip(pb, 1); // role
229 return AVERROR_INVALIDDATA;
230 longitude = ((int32_t) avio_rb32(pb)) / (float) (1 << 16);
231 latitude = ((int32_t) avio_rb32(pb)) / (float) (1 << 16);
233 // Try to output in the same format as the ?xyz field
234 snprintf(buf, sizeof(buf), "%+08.4f%+09.4f/", latitude, longitude);
235 if (*language && strcmp(language, "und")) {
237 snprintf(key2, sizeof(key2), "%s-%s", key, language);
238 av_dict_set(&c->fc->metadata, key2, buf, 0);
240 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
241 return av_dict_set(&c->fc->metadata, key, buf, 0);
244 static int mov_read_udta_string(MOVContext *c, AVIOContext *pb, MOVAtom atom)
247 char key2[32], language[4] = {0};
249 const char *key = NULL;
250 uint16_t langcode = 0;
251 uint32_t data_type = 0, str_size, str_size_alloc;
252 int (*parse)(MOVContext*, AVIOContext*, unsigned, const char*) = NULL;
256 case MKTAG( '@','P','R','M'): key = "premiere_version"; raw = 1; break;
257 case MKTAG( '@','P','R','Q'): key = "quicktime_version"; raw = 1; break;
258 case MKTAG( 'X','M','P','_'):
259 if (c->export_xmp) { key = "xmp"; raw = 1; } break;
260 case MKTAG( 'a','A','R','T'): key = "album_artist"; break;
261 case MKTAG( 'a','k','I','D'): key = "account_type";
262 parse = mov_metadata_int8_no_padding; break;
263 case MKTAG( 'a','p','I','D'): key = "account_id"; break;
264 case MKTAG( 'c','a','t','g'): key = "category"; break;
265 case MKTAG( 'c','p','i','l'): key = "compilation";
266 parse = mov_metadata_int8_no_padding; break;
267 case MKTAG( 'c','p','r','t'): key = "copyright"; break;
268 case MKTAG( 'd','e','s','c'): key = "description"; break;
269 case MKTAG( 'd','i','s','k'): key = "disc";
270 parse = mov_metadata_track_or_disc_number; break;
271 case MKTAG( 'e','g','i','d'): key = "episode_uid";
272 parse = mov_metadata_int8_no_padding; break;
273 case MKTAG( 'g','n','r','e'): key = "genre";
274 parse = mov_metadata_gnre; break;
275 case MKTAG( 'h','d','v','d'): key = "hd_video";
276 parse = mov_metadata_int8_no_padding; break;
277 case MKTAG( 'k','e','y','w'): key = "keywords"; break;
278 case MKTAG( 'l','d','e','s'): key = "synopsis"; break;
279 case MKTAG( 'l','o','c','i'):
280 return mov_metadata_loci(c, pb, atom.size);
281 case MKTAG( 'p','c','s','t'): key = "podcast";
282 parse = mov_metadata_int8_no_padding; break;
283 case MKTAG( 'p','g','a','p'): key = "gapless_playback";
284 parse = mov_metadata_int8_no_padding; break;
285 case MKTAG( 'p','u','r','d'): key = "purchase_date"; break;
286 case MKTAG( 'r','t','n','g'): key = "rating";
287 parse = mov_metadata_int8_no_padding; break;
288 case MKTAG( 's','o','a','a'): key = "sort_album_artist"; break;
289 case MKTAG( 's','o','a','l'): key = "sort_album"; break;
290 case MKTAG( 's','o','a','r'): key = "sort_artist"; break;
291 case MKTAG( 's','o','c','o'): key = "sort_composer"; break;
292 case MKTAG( 's','o','n','m'): key = "sort_name"; break;
293 case MKTAG( 's','o','s','n'): key = "sort_show"; break;
294 case MKTAG( 's','t','i','k'): key = "media_type";
295 parse = mov_metadata_int8_no_padding; break;
296 case MKTAG( 't','r','k','n'): key = "track";
297 parse = mov_metadata_track_or_disc_number; break;
298 case MKTAG( 't','v','e','n'): key = "episode_id"; break;
299 case MKTAG( 't','v','e','s'): key = "episode_sort";
300 parse = mov_metadata_int8_bypass_padding; break;
301 case MKTAG( 't','v','n','n'): key = "network"; break;
302 case MKTAG( 't','v','s','h'): key = "show"; break;
303 case MKTAG( 't','v','s','n'): key = "season_number";
304 parse = mov_metadata_int8_bypass_padding; break;
305 case MKTAG(0xa9,'A','R','T'): key = "artist"; break;
306 case MKTAG(0xa9,'P','R','D'): key = "producer"; break;
307 case MKTAG(0xa9,'a','l','b'): key = "album"; break;
308 case MKTAG(0xa9,'a','u','t'): key = "artist"; break;
309 case MKTAG(0xa9,'c','h','p'): key = "chapter"; break;
310 case MKTAG(0xa9,'c','m','t'): key = "comment"; break;
311 case MKTAG(0xa9,'c','o','m'): key = "composer"; break;
312 case MKTAG(0xa9,'c','p','y'): key = "copyright"; break;
313 case MKTAG(0xa9,'d','a','y'): key = "date"; break;
314 case MKTAG(0xa9,'d','i','r'): key = "director"; break;
315 case MKTAG(0xa9,'d','i','s'): key = "disclaimer"; break;
316 case MKTAG(0xa9,'e','d','1'): key = "edit_date"; break;
317 case MKTAG(0xa9,'e','n','c'): key = "encoder"; break;
318 case MKTAG(0xa9,'f','m','t'): key = "original_format"; break;
319 case MKTAG(0xa9,'g','e','n'): key = "genre"; break;
320 case MKTAG(0xa9,'g','r','p'): key = "grouping"; break;
321 case MKTAG(0xa9,'h','s','t'): key = "host_computer"; break;
322 case MKTAG(0xa9,'i','n','f'): key = "comment"; break;
323 case MKTAG(0xa9,'l','y','r'): key = "lyrics"; break;
324 case MKTAG(0xa9,'m','a','k'): key = "make"; break;
325 case MKTAG(0xa9,'m','o','d'): key = "model"; break;
326 case MKTAG(0xa9,'n','a','m'): key = "title"; break;
327 case MKTAG(0xa9,'o','p','e'): key = "original_artist"; break;
328 case MKTAG(0xa9,'p','r','d'): key = "producer"; break;
329 case MKTAG(0xa9,'p','r','f'): key = "performers"; break;
330 case MKTAG(0xa9,'r','e','q'): key = "playback_requirements"; break;
331 case MKTAG(0xa9,'s','r','c'): key = "original_source"; break;
332 case MKTAG(0xa9,'s','t','3'): key = "subtitle"; break;
333 case MKTAG(0xa9,'s','w','r'): key = "encoder"; break;
334 case MKTAG(0xa9,'t','o','o'): key = "encoder"; break;
335 case MKTAG(0xa9,'t','r','k'): key = "track"; break;
336 case MKTAG(0xa9,'u','r','l'): key = "URL"; break;
337 case MKTAG(0xa9,'w','r','n'): key = "warning"; break;
338 case MKTAG(0xa9,'w','r','t'): key = "composer"; break;
339 case MKTAG(0xa9,'x','y','z'): key = "location"; break;
342 if (c->itunes_metadata && atom.size > 8) {
343 int data_size = avio_rb32(pb);
344 int tag = avio_rl32(pb);
345 if (tag == MKTAG('d','a','t','a') && data_size <= atom.size) {
346 data_type = avio_rb32(pb); // type
347 avio_rb32(pb); // unknown
348 str_size = data_size - 16;
351 if (atom.type == MKTAG('c', 'o', 'v', 'r')) {
352 int ret = mov_read_covr(c, pb, data_type, str_size);
354 av_log(c->fc, AV_LOG_ERROR, "Error parsing cover art.\n");
359 } else if (atom.size > 4 && key && !c->itunes_metadata && !raw) {
360 str_size = avio_rb16(pb); // string length
361 if (str_size > atom.size) {
363 avio_seek(pb, -2, SEEK_CUR);
364 av_log(c->fc, AV_LOG_WARNING, "UDTA parsing failed retrying raw\n");
367 langcode = avio_rb16(pb);
368 ff_mov_lang_to_iso639(langcode, language);
371 str_size = atom.size;
373 if (c->export_all && !key) {
374 snprintf(tmp_key, 5, "%.4s", (char*)&atom.type);
380 if (atom.size < 0 || str_size >= INT_MAX/2)
381 return AVERROR_INVALIDDATA;
383 // worst-case requirement for output string in case of utf8 coded input
384 str_size_alloc = (raw ? str_size : str_size * 2) + 1;
385 str = av_mallocz(str_size_alloc);
387 return AVERROR(ENOMEM);
390 parse(c, pb, str_size, key);
392 if (!raw && (data_type == 3 || (data_type == 0 && (langcode < 0x400 || langcode == 0x7fff)))) { // MAC Encoded
393 mov_read_mac_string(c, pb, str_size, str, str_size_alloc);
395 int ret = avio_read(pb, str, str_size);
396 if (ret != str_size) {
398 return ret < 0 ? ret : AVERROR_INVALIDDATA;
402 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
403 av_dict_set(&c->fc->metadata, key, str, 0);
404 if (*language && strcmp(language, "und")) {
405 snprintf(key2, sizeof(key2), "%s-%s", key, language);
406 av_dict_set(&c->fc->metadata, key2, str, 0);
409 av_log(c->fc, AV_LOG_TRACE, "lang \"%3s\" ", language);
410 av_log(c->fc, AV_LOG_TRACE, "tag \"%s\" value \"%s\" atom \"%.4s\" %d %"PRId64"\n",
411 key, str, (char*)&atom.type, str_size_alloc, atom.size);
417 static int mov_read_chpl(MOVContext *c, AVIOContext *pb, MOVAtom atom)
420 int i, nb_chapters, str_len, version;
423 if ((atom.size -= 5) < 0)
426 version = avio_r8(pb);
429 avio_rb32(pb); // ???
430 nb_chapters = avio_r8(pb);
432 for (i = 0; i < nb_chapters; i++) {
436 start = avio_rb64(pb);
437 str_len = avio_r8(pb);
439 if ((atom.size -= 9+str_len) < 0)
442 avio_read(pb, str, str_len);
444 avpriv_new_chapter(c->fc, i, (AVRational){1,10000000}, start, AV_NOPTS_VALUE, str);
449 #define MIN_DATA_ENTRY_BOX_SIZE 12
450 static int mov_read_dref(MOVContext *c, AVIOContext *pb, MOVAtom atom)
453 MOVStreamContext *sc;
456 if (c->fc->nb_streams < 1)
458 st = c->fc->streams[c->fc->nb_streams-1];
461 avio_rb32(pb); // version + flags
462 entries = avio_rb32(pb);
463 if (entries > (atom.size - 1) / MIN_DATA_ENTRY_BOX_SIZE + 1 ||
464 entries >= UINT_MAX / sizeof(*sc->drefs))
465 return AVERROR_INVALIDDATA;
468 sc->drefs = av_mallocz(entries * sizeof(*sc->drefs));
470 return AVERROR(ENOMEM);
471 sc->drefs_count = entries;
473 for (i = 0; i < sc->drefs_count; i++) {
474 MOVDref *dref = &sc->drefs[i];
475 uint32_t size = avio_rb32(pb);
476 int64_t next = avio_tell(pb) + size - 4;
479 return AVERROR_INVALIDDATA;
481 dref->type = avio_rl32(pb);
482 avio_rb32(pb); // version + flags
483 av_log(c->fc, AV_LOG_TRACE, "type %.4s size %d\n", (char*)&dref->type, size);
485 if (dref->type == MKTAG('a','l','i','s') && size > 150) {
486 /* macintosh alias record */
487 uint16_t volume_len, len;
492 volume_len = avio_r8(pb);
493 volume_len = FFMIN(volume_len, 27);
494 avio_read(pb, dref->volume, 27);
495 dref->volume[volume_len] = 0;
496 av_log(c->fc, AV_LOG_DEBUG, "volume %s, len %d\n", dref->volume, volume_len);
501 len = FFMIN(len, 63);
502 avio_read(pb, dref->filename, 63);
503 dref->filename[len] = 0;
504 av_log(c->fc, AV_LOG_DEBUG, "filename %s, len %d\n", dref->filename, len);
508 /* read next level up_from_alias/down_to_target */
509 dref->nlvl_from = avio_rb16(pb);
510 dref->nlvl_to = avio_rb16(pb);
511 av_log(c->fc, AV_LOG_DEBUG, "nlvl from %d, nlvl to %d\n",
512 dref->nlvl_from, dref->nlvl_to);
516 for (type = 0; type != -1 && avio_tell(pb) < next; ) {
519 type = avio_rb16(pb);
521 av_log(c->fc, AV_LOG_DEBUG, "type %d, len %d\n", type, len);
524 if (type == 2 || type == 18) { // absolute path
526 dref->path = av_mallocz(len+1);
528 return AVERROR(ENOMEM);
529 avio_read(pb, dref->path, len);
530 if (type == 18) // no additional processing needed
532 if (len > volume_len && !strncmp(dref->path, dref->volume, volume_len)) {
534 memmove(dref->path, dref->path+volume_len, len);
537 for (j = 0; j < len; j++)
538 if (dref->path[j] == ':')
540 av_log(c->fc, AV_LOG_DEBUG, "path %s\n", dref->path);
541 } else if (type == 0) { // directory name
543 dref->dir = av_malloc(len+1);
545 return AVERROR(ENOMEM);
546 if (avio_read(pb, dref->dir, len) != len)
547 return AVERROR_INVALIDDATA;
549 for (j = 0; j < len; j++)
550 if (dref->dir[j] == ':')
552 av_log(c->fc, AV_LOG_DEBUG, "dir %s\n", dref->dir);
557 avio_seek(pb, next, SEEK_SET);
562 static int mov_read_hdlr(MOVContext *c, AVIOContext *pb, MOVAtom atom)
566 uint32_t av_unused ctype;
570 if (c->fc->nb_streams < 1) // meta before first trak
573 st = c->fc->streams[c->fc->nb_streams-1];
575 avio_r8(pb); /* version */
576 avio_rb24(pb); /* flags */
579 ctype = avio_rl32(pb);
580 type = avio_rl32(pb); /* component subtype */
582 av_log(c->fc, AV_LOG_TRACE, "ctype= %.4s (0x%08x)\n", (char*)&ctype, ctype);
583 av_log(c->fc, AV_LOG_TRACE, "stype= %.4s\n", (char*)&type);
585 if (type == MKTAG('v','i','d','e'))
586 st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
587 else if (type == MKTAG('s','o','u','n'))
588 st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
589 else if (type == MKTAG('m','1','a',' '))
590 st->codec->codec_id = AV_CODEC_ID_MP2;
591 else if ((type == MKTAG('s','u','b','p')) || (type == MKTAG('c','l','c','p')))
592 st->codec->codec_type = AVMEDIA_TYPE_SUBTITLE;
594 avio_rb32(pb); /* component manufacture */
595 avio_rb32(pb); /* component flags */
596 avio_rb32(pb); /* component flags mask */
598 title_size = atom.size - 24;
599 if (title_size > 0) {
600 title_str = av_malloc(title_size + 1); /* Add null terminator */
602 return AVERROR(ENOMEM);
603 avio_read(pb, title_str, title_size);
604 title_str[title_size] = 0;
606 int off = (!c->isom && title_str[0] == title_size - 1);
607 av_dict_set(&st->metadata, "handler_name", title_str + off, 0);
609 av_freep(&title_str);
615 int ff_mov_read_esds(AVFormatContext *fc, AVIOContext *pb)
620 if (fc->nb_streams < 1)
622 st = fc->streams[fc->nb_streams-1];
624 avio_rb32(pb); /* version + flags */
625 ff_mp4_read_descr(fc, pb, &tag);
626 if (tag == MP4ESDescrTag) {
627 ff_mp4_parse_es_descr(pb, NULL);
629 avio_rb16(pb); /* ID */
631 ff_mp4_read_descr(fc, pb, &tag);
632 if (tag == MP4DecConfigDescrTag)
633 ff_mp4_read_dec_config_descr(fc, st, pb);
637 static int mov_read_esds(MOVContext *c, AVIOContext *pb, MOVAtom atom)
639 return ff_mov_read_esds(c->fc, pb);
642 static int mov_read_dac3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
645 enum AVAudioServiceType *ast;
646 int ac3info, acmod, lfeon, bsmod;
648 if (c->fc->nb_streams < 1)
650 st = c->fc->streams[c->fc->nb_streams-1];
652 ast = (enum AVAudioServiceType*)ff_stream_new_side_data(st, AV_PKT_DATA_AUDIO_SERVICE_TYPE,
655 return AVERROR(ENOMEM);
657 ac3info = avio_rb24(pb);
658 bsmod = (ac3info >> 14) & 0x7;
659 acmod = (ac3info >> 11) & 0x7;
660 lfeon = (ac3info >> 10) & 0x1;
661 st->codec->channels = ((int[]){2,1,2,3,3,4,4,5})[acmod] + lfeon;
662 st->codec->channel_layout = avpriv_ac3_channel_layout_tab[acmod];
664 st->codec->channel_layout |= AV_CH_LOW_FREQUENCY;
666 if (st->codec->channels > 1 && bsmod == 0x7)
667 *ast = AV_AUDIO_SERVICE_TYPE_KARAOKE;
669 st->codec->audio_service_type = *ast;
674 static int mov_read_dec3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
677 enum AVAudioServiceType *ast;
678 int eac3info, acmod, lfeon, bsmod;
680 if (c->fc->nb_streams < 1)
682 st = c->fc->streams[c->fc->nb_streams-1];
684 ast = (enum AVAudioServiceType*)ff_stream_new_side_data(st, AV_PKT_DATA_AUDIO_SERVICE_TYPE,
687 return AVERROR(ENOMEM);
689 /* No need to parse fields for additional independent substreams and its
690 * associated dependent substreams since libavcodec's E-AC-3 decoder
691 * does not support them yet. */
692 avio_rb16(pb); /* data_rate and num_ind_sub */
693 eac3info = avio_rb24(pb);
694 bsmod = (eac3info >> 12) & 0x1f;
695 acmod = (eac3info >> 9) & 0x7;
696 lfeon = (eac3info >> 8) & 0x1;
697 st->codec->channel_layout = avpriv_ac3_channel_layout_tab[acmod];
699 st->codec->channel_layout |= AV_CH_LOW_FREQUENCY;
700 st->codec->channels = av_get_channel_layout_nb_channels(st->codec->channel_layout);
702 if (st->codec->channels > 1 && bsmod == 0x7)
703 *ast = AV_AUDIO_SERVICE_TYPE_KARAOKE;
705 st->codec->audio_service_type = *ast;
710 static int mov_read_chan(MOVContext *c, AVIOContext *pb, MOVAtom atom)
714 if (c->fc->nb_streams < 1)
716 st = c->fc->streams[c->fc->nb_streams-1];
721 /* skip version and flags */
724 ff_mov_read_chan(c->fc, pb, st, atom.size - 4);
729 static int mov_read_wfex(MOVContext *c, AVIOContext *pb, MOVAtom atom)
734 if (c->fc->nb_streams < 1)
736 st = c->fc->streams[c->fc->nb_streams-1];
738 if ((ret = ff_get_wav_header(pb, st->codec, atom.size, 0)) < 0)
739 av_log(c->fc, AV_LOG_WARNING, "get_wav_header failed\n");
744 static int mov_read_pasp(MOVContext *c, AVIOContext *pb, MOVAtom atom)
746 const int num = avio_rb32(pb);
747 const int den = avio_rb32(pb);
750 if (c->fc->nb_streams < 1)
752 st = c->fc->streams[c->fc->nb_streams-1];
754 if ((st->sample_aspect_ratio.den != 1 || st->sample_aspect_ratio.num) && // default
755 (den != st->sample_aspect_ratio.den || num != st->sample_aspect_ratio.num)) {
756 av_log(c->fc, AV_LOG_WARNING,
757 "sample aspect ratio already set to %d:%d, ignoring 'pasp' atom (%d:%d)\n",
758 st->sample_aspect_ratio.num, st->sample_aspect_ratio.den,
760 } else if (den != 0) {
761 av_reduce(&st->sample_aspect_ratio.num, &st->sample_aspect_ratio.den,
767 /* this atom contains actual media data */
768 static int mov_read_mdat(MOVContext *c, AVIOContext *pb, MOVAtom atom)
770 if (atom.size == 0) /* wrong one (MP4) */
773 return 0; /* now go for moov */
776 /* read major brand, minor version and compatible brands and store them as metadata */
777 static int mov_read_ftyp(MOVContext *c, AVIOContext *pb, MOVAtom atom)
781 char* comp_brands_str;
782 uint8_t type[5] = {0};
784 avio_read(pb, type, 4);
785 if (strcmp(type, "qt "))
787 av_log(c->fc, AV_LOG_DEBUG, "ISO: File Type Major Brand: %.4s\n",(char *)&type);
788 av_dict_set(&c->fc->metadata, "major_brand", type, 0);
789 minor_ver = avio_rb32(pb); /* minor version */
790 av_dict_set_int(&c->fc->metadata, "minor_version", minor_ver, 0);
792 comp_brand_size = atom.size - 8;
793 if (comp_brand_size < 0)
794 return AVERROR_INVALIDDATA;
795 comp_brands_str = av_malloc(comp_brand_size + 1); /* Add null terminator */
796 if (!comp_brands_str)
797 return AVERROR(ENOMEM);
798 avio_read(pb, comp_brands_str, comp_brand_size);
799 comp_brands_str[comp_brand_size] = 0;
800 av_dict_set(&c->fc->metadata, "compatible_brands", comp_brands_str, 0);
801 av_freep(&comp_brands_str);
806 /* this atom should contain all header atoms */
807 static int mov_read_moov(MOVContext *c, AVIOContext *pb, MOVAtom atom)
812 av_log(c->fc, AV_LOG_WARNING, "Found duplicated MOOV Atom. Skipped it\n");
813 avio_skip(pb, atom.size);
817 if ((ret = mov_read_default(c, pb, atom)) < 0)
819 /* we parsed the 'moov' atom, we can terminate the parsing as soon as we find the 'mdat' */
820 /* so we don't parse the whole file if over a network */
822 return 0; /* now go for mdat */
825 static int mov_read_moof(MOVContext *c, AVIOContext *pb, MOVAtom atom)
827 if (!c->has_looked_for_mfra && c->use_mfra_for > 0) {
828 c->has_looked_for_mfra = 1;
831 av_log(c->fc, AV_LOG_VERBOSE, "stream has moof boxes, will look "
833 if ((ret = mov_read_mfra(c, pb)) < 0) {
834 av_log(c->fc, AV_LOG_VERBOSE, "found a moof box but failed to "
835 "read the mfra (may be a live ismv)\n");
838 av_log(c->fc, AV_LOG_VERBOSE, "found a moof box but stream is not "
839 "seekable, can not look for mfra\n");
842 c->fragment.moof_offset = c->fragment.implicit_offset = avio_tell(pb) - 8;
843 av_log(c->fc, AV_LOG_TRACE, "moof offset %"PRIx64"\n", c->fragment.moof_offset);
844 return mov_read_default(c, pb, atom);
847 static void mov_metadata_creation_time(AVDictionary **metadata, int64_t time)
851 struct tm *ptm, tmbuf;
853 if(time >= 2082844800)
854 time -= 2082844800; /* seconds between 1904-01-01 and Epoch */
856 ptm = gmtime_r(&timet, &tmbuf);
858 if (strftime(buffer, sizeof(buffer), "%Y-%m-%d %H:%M:%S", ptm))
859 av_dict_set(metadata, "creation_time", buffer, 0);
863 static int mov_read_mdhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
866 MOVStreamContext *sc;
868 char language[4] = {0};
870 int64_t creation_time;
872 if (c->fc->nb_streams < 1)
874 st = c->fc->streams[c->fc->nb_streams-1];
877 if (sc->time_scale) {
878 av_log(c->fc, AV_LOG_ERROR, "Multiple mdhd?\n");
879 return AVERROR_INVALIDDATA;
882 version = avio_r8(pb);
884 avpriv_request_sample(c->fc, "Version %d", version);
885 return AVERROR_PATCHWELCOME;
887 avio_rb24(pb); /* flags */
889 creation_time = avio_rb64(pb);
892 creation_time = avio_rb32(pb);
893 avio_rb32(pb); /* modification time */
895 mov_metadata_creation_time(&st->metadata, creation_time);
897 sc->time_scale = avio_rb32(pb);
898 st->duration = (version == 1) ? avio_rb64(pb) : avio_rb32(pb); /* duration */
900 lang = avio_rb16(pb); /* language */
901 if (ff_mov_lang_to_iso639(lang, language))
902 av_dict_set(&st->metadata, "language", language, 0);
903 avio_rb16(pb); /* quality */
908 static int mov_read_mvhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
910 int64_t creation_time;
911 int version = avio_r8(pb); /* version */
912 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(&c->fc->metadata, creation_time);
922 c->time_scale = avio_rb32(pb); /* time scale */
924 av_log(c->fc, AV_LOG_TRACE, "time scale = %i\n", c->time_scale);
926 c->duration = (version == 1) ? avio_rb64(pb) : avio_rb32(pb); /* duration */
927 // set the AVCodecContext duration because the duration of individual tracks
929 if (c->time_scale > 0 && !c->trex_data)
930 c->fc->duration = av_rescale(c->duration, AV_TIME_BASE, c->time_scale);
931 avio_rb32(pb); /* preferred scale */
933 avio_rb16(pb); /* preferred volume */
935 avio_skip(pb, 10); /* reserved */
937 avio_skip(pb, 36); /* display matrix */
939 avio_rb32(pb); /* preview time */
940 avio_rb32(pb); /* preview duration */
941 avio_rb32(pb); /* poster time */
942 avio_rb32(pb); /* selection time */
943 avio_rb32(pb); /* selection duration */
944 avio_rb32(pb); /* current time */
945 avio_rb32(pb); /* next track ID */
949 static int mov_read_enda(MOVContext *c, AVIOContext *pb, MOVAtom atom)
954 if (c->fc->nb_streams < 1)
956 st = c->fc->streams[c->fc->nb_streams-1];
958 little_endian = avio_rb16(pb) & 0xFF;
959 av_log(c->fc, AV_LOG_TRACE, "enda %d\n", little_endian);
960 if (little_endian == 1) {
961 switch (st->codec->codec_id) {
962 case AV_CODEC_ID_PCM_S24BE:
963 st->codec->codec_id = AV_CODEC_ID_PCM_S24LE;
965 case AV_CODEC_ID_PCM_S32BE:
966 st->codec->codec_id = AV_CODEC_ID_PCM_S32LE;
968 case AV_CODEC_ID_PCM_F32BE:
969 st->codec->codec_id = AV_CODEC_ID_PCM_F32LE;
971 case AV_CODEC_ID_PCM_F64BE:
972 st->codec->codec_id = AV_CODEC_ID_PCM_F64LE;
981 static int mov_read_colr(MOVContext *c, AVIOContext *pb, MOVAtom atom)
984 char color_parameter_type[5] = { 0 };
985 int color_primaries, color_trc, color_matrix;
987 if (c->fc->nb_streams < 1)
989 st = c->fc->streams[c->fc->nb_streams - 1];
991 avio_read(pb, color_parameter_type, 4);
992 if (strncmp(color_parameter_type, "nclx", 4) &&
993 strncmp(color_parameter_type, "nclc", 4)) {
994 av_log(c->fc, AV_LOG_WARNING, "unsupported color_parameter_type %s\n",
995 color_parameter_type);
999 color_primaries = avio_rb16(pb);
1000 color_trc = avio_rb16(pb);
1001 color_matrix = avio_rb16(pb);
1003 av_log(c->fc, AV_LOG_TRACE,
1004 "%s: pri %d trc %d matrix %d",
1005 color_parameter_type, color_primaries, color_trc, color_matrix);
1007 if (!strncmp(color_parameter_type, "nclx", 4)) {
1008 uint8_t color_range = avio_r8(pb) >> 7;
1009 av_log(c->fc, AV_LOG_TRACE, " full %"PRIu8"", color_range);
1011 st->codec->color_range = AVCOL_RANGE_JPEG;
1013 st->codec->color_range = AVCOL_RANGE_MPEG;
1014 /* 14496-12 references JPEG XR specs (rather than the more complete
1015 * 23001-8) so some adjusting is required */
1016 if (color_primaries >= AVCOL_PRI_FILM)
1017 color_primaries = AVCOL_PRI_UNSPECIFIED;
1018 if ((color_trc >= AVCOL_TRC_LINEAR &&
1019 color_trc <= AVCOL_TRC_LOG_SQRT) ||
1020 color_trc >= AVCOL_TRC_BT2020_10)
1021 color_trc = AVCOL_TRC_UNSPECIFIED;
1022 if (color_matrix >= AVCOL_SPC_BT2020_NCL)
1023 color_matrix = AVCOL_SPC_UNSPECIFIED;
1024 st->codec->color_primaries = color_primaries;
1025 st->codec->color_trc = color_trc;
1026 st->codec->colorspace = color_matrix;
1027 } else if (!strncmp(color_parameter_type, "nclc", 4)) {
1028 /* color primaries, Table 4-4 */
1029 switch (color_primaries) {
1030 case 1: st->codec->color_primaries = AVCOL_PRI_BT709; break;
1031 case 5: st->codec->color_primaries = AVCOL_PRI_SMPTE170M; break;
1032 case 6: st->codec->color_primaries = AVCOL_PRI_SMPTE240M; break;
1034 /* color transfer, Table 4-5 */
1035 switch (color_trc) {
1036 case 1: st->codec->color_trc = AVCOL_TRC_BT709; break;
1037 case 7: st->codec->color_trc = AVCOL_TRC_SMPTE240M; break;
1039 /* color matrix, Table 4-6 */
1040 switch (color_matrix) {
1041 case 1: st->codec->colorspace = AVCOL_SPC_BT709; break;
1042 case 6: st->codec->colorspace = AVCOL_SPC_BT470BG; break;
1043 case 7: st->codec->colorspace = AVCOL_SPC_SMPTE240M; break;
1046 av_log(c->fc, AV_LOG_TRACE, "\n");
1051 static int mov_read_fiel(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1054 unsigned mov_field_order;
1055 enum AVFieldOrder decoded_field_order = AV_FIELD_UNKNOWN;
1057 if (c->fc->nb_streams < 1) // will happen with jp2 files
1059 st = c->fc->streams[c->fc->nb_streams-1];
1061 return AVERROR_INVALIDDATA;
1062 mov_field_order = avio_rb16(pb);
1063 if ((mov_field_order & 0xFF00) == 0x0100)
1064 decoded_field_order = AV_FIELD_PROGRESSIVE;
1065 else if ((mov_field_order & 0xFF00) == 0x0200) {
1066 switch (mov_field_order & 0xFF) {
1067 case 0x01: decoded_field_order = AV_FIELD_TT;
1069 case 0x06: decoded_field_order = AV_FIELD_BB;
1071 case 0x09: decoded_field_order = AV_FIELD_TB;
1073 case 0x0E: decoded_field_order = AV_FIELD_BT;
1077 if (decoded_field_order == AV_FIELD_UNKNOWN && mov_field_order) {
1078 av_log(NULL, AV_LOG_ERROR, "Unknown MOV field order 0x%04x\n", mov_field_order);
1080 st->codec->field_order = decoded_field_order;
1085 static int mov_realloc_extradata(AVCodecContext *codec, MOVAtom atom)
1088 uint64_t size = (uint64_t)codec->extradata_size + atom.size + 8 + FF_INPUT_BUFFER_PADDING_SIZE;
1089 if (size > INT_MAX || (uint64_t)atom.size > INT_MAX)
1090 return AVERROR_INVALIDDATA;
1091 if ((err = av_reallocp(&codec->extradata, size)) < 0) {
1092 codec->extradata_size = 0;
1095 codec->extradata_size = size - FF_INPUT_BUFFER_PADDING_SIZE;
1099 /* Read a whole atom into the extradata return the size of the atom read, possibly truncated if != atom.size */
1100 static int64_t mov_read_atom_into_extradata(MOVContext *c, AVIOContext *pb, MOVAtom atom,
1101 AVCodecContext *codec, uint8_t *buf)
1103 int64_t result = atom.size;
1106 AV_WB32(buf , atom.size + 8);
1107 AV_WL32(buf + 4, atom.type);
1108 err = avio_read(pb, buf + 8, atom.size);
1110 codec->extradata_size -= atom.size;
1112 } else if (err < atom.size) {
1113 av_log(c->fc, AV_LOG_WARNING, "truncated extradata\n");
1114 codec->extradata_size -= atom.size - err;
1117 memset(buf + 8 + err, 0, FF_INPUT_BUFFER_PADDING_SIZE);
1121 /* FIXME modify qdm2/svq3/h264 decoders to take full atom as extradata */
1122 static int mov_read_extradata(MOVContext *c, AVIOContext *pb, MOVAtom atom,
1123 enum AVCodecID codec_id)
1126 uint64_t original_size;
1129 if (c->fc->nb_streams < 1) // will happen with jp2 files
1131 st = c->fc->streams[c->fc->nb_streams-1];
1133 if (st->codec->codec_id != codec_id)
1134 return 0; /* unexpected codec_id - don't mess with extradata */
1136 original_size = st->codec->extradata_size;
1137 err = mov_realloc_extradata(st->codec, atom);
1141 err = mov_read_atom_into_extradata(c, pb, atom, st->codec, st->codec->extradata + original_size);
1144 return 0; // Note: this is the original behavior to ignore truncation.
1147 /* wrapper functions for reading ALAC/AVS/MJPEG/MJPEG2000 extradata atoms only for those codecs */
1148 static int mov_read_alac(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1150 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_ALAC);
1153 static int mov_read_avss(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1155 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_AVS);
1158 static int mov_read_jp2h(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1160 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_JPEG2000);
1163 static int mov_read_dpxe(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1165 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_R10K);
1168 static int mov_read_avid(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1170 int ret = mov_read_extradata(c, pb, atom, AV_CODEC_ID_AVUI);
1172 ret = mov_read_extradata(c, pb, atom, AV_CODEC_ID_DNXHD);
1176 static int mov_read_targa_y216(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1178 int ret = mov_read_extradata(c, pb, atom, AV_CODEC_ID_TARGA_Y216);
1180 if (!ret && c->fc->nb_streams >= 1) {
1181 AVCodecContext *avctx = c->fc->streams[c->fc->nb_streams-1]->codec;
1182 if (avctx->extradata_size >= 40) {
1183 avctx->height = AV_RB16(&avctx->extradata[36]);
1184 avctx->width = AV_RB16(&avctx->extradata[38]);
1190 static int mov_read_ares(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1192 if (c->fc->nb_streams >= 1) {
1193 AVCodecContext *codec = c->fc->streams[c->fc->nb_streams-1]->codec;
1194 if (codec->codec_tag == MKTAG('A', 'V', 'i', 'n') &&
1195 codec->codec_id == AV_CODEC_ID_H264 &&
1198 /* For AVID AVCI50, force width of 1440 to be able to select the correct SPS and PPS */
1199 if (avio_rb16(pb) == 0xd4d)
1200 codec->width = 1440;
1205 return mov_read_avid(c, pb, atom);
1208 static int mov_read_aclr(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1212 uint64_t original_size;
1213 if (c->fc->nb_streams >= 1) {
1214 AVCodecContext *codec = c->fc->streams[c->fc->nb_streams-1]->codec;
1215 if (codec->codec_id == AV_CODEC_ID_H264)
1217 if (atom.size == 16) {
1218 original_size = codec->extradata_size;
1219 ret = mov_realloc_extradata(codec, atom);
1221 length = mov_read_atom_into_extradata(c, pb, atom, codec, codec->extradata + original_size);
1222 if (length == atom.size) {
1223 const uint8_t range_value = codec->extradata[original_size + 19];
1224 switch (range_value) {
1226 codec->color_range = AVCOL_RANGE_MPEG;
1229 codec->color_range = AVCOL_RANGE_JPEG;
1232 av_log(c, AV_LOG_WARNING, "ignored unknown aclr value (%d)\n", range_value);
1235 av_dlog(c, "color_range: %d\n", codec->color_range);
1237 /* For some reason the whole atom was not added to the extradata */
1238 av_log(c, AV_LOG_ERROR, "aclr not decoded - incomplete atom\n");
1241 av_log(c, AV_LOG_ERROR, "aclr not decoded - unable to add atom to extradata\n");
1244 av_log(c, AV_LOG_WARNING, "aclr not decoded - unexpected size %"PRId64"\n", atom.size);
1251 static int mov_read_svq3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1253 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_SVQ3);
1256 static int mov_read_wave(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1260 if (c->fc->nb_streams < 1)
1262 st = c->fc->streams[c->fc->nb_streams-1];
1264 if ((uint64_t)atom.size > (1<<30))
1265 return AVERROR_INVALIDDATA;
1267 if (st->codec->codec_id == AV_CODEC_ID_QDM2 ||
1268 st->codec->codec_id == AV_CODEC_ID_QDMC ||
1269 st->codec->codec_id == AV_CODEC_ID_SPEEX) {
1270 // pass all frma atom to codec, needed at least for QDMC and QDM2
1271 av_freep(&st->codec->extradata);
1272 if (ff_get_extradata(st->codec, pb, atom.size) < 0)
1273 return AVERROR(ENOMEM);
1274 } else if (atom.size > 8) { /* to read frma, esds atoms */
1276 if ((ret = mov_read_default(c, pb, atom)) < 0)
1279 avio_skip(pb, atom.size);
1284 * This function reads atom content and puts data in extradata without tag
1285 * nor size unlike mov_read_extradata.
1287 static int mov_read_glbl(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1291 if (c->fc->nb_streams < 1)
1293 st = c->fc->streams[c->fc->nb_streams-1];
1295 if ((uint64_t)atom.size > (1<<30))
1296 return AVERROR_INVALIDDATA;
1298 if (atom.size >= 10) {
1299 // Broken files created by legacy versions of libavformat will
1300 // wrap a whole fiel atom inside of a glbl atom.
1301 unsigned size = avio_rb32(pb);
1302 unsigned type = avio_rl32(pb);
1303 avio_seek(pb, -8, SEEK_CUR);
1304 if (type == MKTAG('f','i','e','l') && size == atom.size)
1305 return mov_read_default(c, pb, atom);
1307 if (st->codec->extradata_size > 1 && st->codec->extradata) {
1308 av_log(c, AV_LOG_WARNING, "ignoring multiple glbl\n");
1311 av_freep(&st->codec->extradata);
1312 if (ff_get_extradata(st->codec, pb, atom.size) < 0)
1313 return AVERROR(ENOMEM);
1318 static int mov_read_dvc1(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1321 uint8_t profile_level;
1324 if (c->fc->nb_streams < 1)
1326 st = c->fc->streams[c->fc->nb_streams-1];
1328 if (atom.size >= (1<<28) || atom.size < 7)
1329 return AVERROR_INVALIDDATA;
1331 profile_level = avio_r8(pb);
1332 if ((profile_level & 0xf0) != 0xc0)
1335 avio_seek(pb, 6, SEEK_CUR);
1336 av_freep(&st->codec->extradata);
1337 if ((ret = ff_get_extradata(st->codec, pb, atom.size - 7)) < 0)
1344 * An strf atom is a BITMAPINFOHEADER struct. This struct is 40 bytes itself,
1345 * but can have extradata appended at the end after the 40 bytes belonging
1348 static int mov_read_strf(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1352 if (c->fc->nb_streams < 1)
1354 if (atom.size <= 40)
1356 st = c->fc->streams[c->fc->nb_streams-1];
1358 if ((uint64_t)atom.size > (1<<30))
1359 return AVERROR_INVALIDDATA;
1362 av_freep(&st->codec->extradata);
1363 if (ff_get_extradata(st->codec, pb, atom.size - 40) < 0)
1364 return AVERROR(ENOMEM);
1368 static int mov_read_stco(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1371 MOVStreamContext *sc;
1372 unsigned int i, entries;
1374 if (c->fc->nb_streams < 1)
1376 st = c->fc->streams[c->fc->nb_streams-1];
1379 avio_r8(pb); /* version */
1380 avio_rb24(pb); /* flags */
1382 entries = avio_rb32(pb);
1387 if (sc->chunk_offsets)
1388 av_log(c->fc, AV_LOG_WARNING, "Duplicated STCO atom\n");
1389 av_free(sc->chunk_offsets);
1390 sc->chunk_count = 0;
1391 sc->chunk_offsets = av_malloc_array(entries, sizeof(*sc->chunk_offsets));
1392 if (!sc->chunk_offsets)
1393 return AVERROR(ENOMEM);
1394 sc->chunk_count = entries;
1396 if (atom.type == MKTAG('s','t','c','o'))
1397 for (i = 0; i < entries && !pb->eof_reached; i++)
1398 sc->chunk_offsets[i] = avio_rb32(pb);
1399 else if (atom.type == MKTAG('c','o','6','4'))
1400 for (i = 0; i < entries && !pb->eof_reached; i++)
1401 sc->chunk_offsets[i] = avio_rb64(pb);
1403 return AVERROR_INVALIDDATA;
1405 sc->chunk_count = i;
1407 if (pb->eof_reached)
1414 * Compute codec id for 'lpcm' tag.
1415 * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
1417 enum AVCodecID ff_mov_get_lpcm_codec_id(int bps, int flags)
1424 return ff_get_pcm_codec_id(bps, flags & 1, flags & 2, flags & 4 ? -1 : 0);
1427 static int mov_codec_id(AVStream *st, uint32_t format)
1429 int id = ff_codec_get_id(ff_codec_movaudio_tags, format);
1432 ((format & 0xFFFF) == 'm' + ('s' << 8) ||
1433 (format & 0xFFFF) == 'T' + ('S' << 8)))
1434 id = ff_codec_get_id(ff_codec_wav_tags, av_bswap32(format) & 0xFFFF);
1436 if (st->codec->codec_type != AVMEDIA_TYPE_VIDEO && id > 0) {
1437 st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
1438 } else if (st->codec->codec_type != AVMEDIA_TYPE_AUDIO &&
1439 /* skip old asf mpeg4 tag */
1440 format && format != MKTAG('m','p','4','s')) {
1441 id = ff_codec_get_id(ff_codec_movvideo_tags, format);
1443 id = ff_codec_get_id(ff_codec_bmp_tags, format);
1445 st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
1446 else if (st->codec->codec_type == AVMEDIA_TYPE_DATA ||
1447 (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE &&
1448 st->codec->codec_id == AV_CODEC_ID_NONE)) {
1449 id = ff_codec_get_id(ff_codec_movsubtitle_tags, format);
1451 st->codec->codec_type = AVMEDIA_TYPE_SUBTITLE;
1455 st->codec->codec_tag = format;
1460 static void mov_parse_stsd_video(MOVContext *c, AVIOContext *pb,
1461 AVStream *st, MOVStreamContext *sc)
1463 uint8_t codec_name[32];
1464 unsigned int color_depth, len, j;
1465 int color_greyscale;
1468 avio_rb16(pb); /* version */
1469 avio_rb16(pb); /* revision level */
1470 avio_rb32(pb); /* vendor */
1471 avio_rb32(pb); /* temporal quality */
1472 avio_rb32(pb); /* spatial quality */
1474 st->codec->width = avio_rb16(pb); /* width */
1475 st->codec->height = avio_rb16(pb); /* height */
1477 avio_rb32(pb); /* horiz resolution */
1478 avio_rb32(pb); /* vert resolution */
1479 avio_rb32(pb); /* data size, always 0 */
1480 avio_rb16(pb); /* frames per samples */
1482 len = avio_r8(pb); /* codec name, pascal string */
1485 mov_read_mac_string(c, pb, len, codec_name, sizeof(codec_name));
1487 avio_skip(pb, 31 - len);
1490 av_dict_set(&st->metadata, "encoder", codec_name, 0);
1492 /* codec_tag YV12 triggers an UV swap in rawdec.c */
1493 if (!memcmp(codec_name, "Planar Y'CbCr 8-bit 4:2:0", 25)) {
1494 st->codec->codec_tag = MKTAG('I', '4', '2', '0');
1495 st->codec->width &= ~1;
1496 st->codec->height &= ~1;
1498 /* Flash Media Server uses tag H263 with Sorenson Spark */
1499 if (st->codec->codec_tag == MKTAG('H','2','6','3') &&
1500 !memcmp(codec_name, "Sorenson H263", 13))
1501 st->codec->codec_id = AV_CODEC_ID_FLV1;
1503 st->codec->bits_per_coded_sample = avio_rb16(pb); /* depth */
1504 color_table_id = avio_rb16(pb); /* colortable id */
1505 av_log(c->fc, AV_LOG_TRACE, "depth %d, ctab id %d\n",
1506 st->codec->bits_per_coded_sample, color_table_id);
1507 /* figure out the palette situation */
1508 color_depth = st->codec->bits_per_coded_sample & 0x1F;
1509 color_greyscale = st->codec->bits_per_coded_sample & 0x20;
1510 /* Do not create a greyscale palette for cinepak */
1511 if (color_greyscale && st->codec->codec_id == AV_CODEC_ID_CINEPAK)
1514 /* if the depth is 2, 4, or 8 bpp, file is palettized */
1515 if ((color_depth == 2) || (color_depth == 4) || (color_depth == 8)) {
1516 /* for palette traversal */
1517 unsigned int color_start, color_count, color_end;
1518 unsigned char a, r, g, b;
1520 if (color_greyscale) {
1521 int color_index, color_dec;
1522 /* compute the greyscale palette */
1523 st->codec->bits_per_coded_sample = color_depth;
1524 color_count = 1 << color_depth;
1526 color_dec = 256 / (color_count - 1);
1527 for (j = 0; j < color_count; j++) {
1528 r = g = b = color_index;
1529 sc->palette[j] = (0xFFU << 24) | (r << 16) | (g << 8) | (b);
1530 color_index -= color_dec;
1531 if (color_index < 0)
1534 } else if (color_table_id) {
1535 const uint8_t *color_table;
1536 /* if flag bit 3 is set, use the default palette */
1537 color_count = 1 << color_depth;
1538 if (color_depth == 2)
1539 color_table = ff_qt_default_palette_4;
1540 else if (color_depth == 4)
1541 color_table = ff_qt_default_palette_16;
1543 color_table = ff_qt_default_palette_256;
1545 for (j = 0; j < color_count; j++) {
1546 r = color_table[j * 3 + 0];
1547 g = color_table[j * 3 + 1];
1548 b = color_table[j * 3 + 2];
1549 sc->palette[j] = (0xFFU << 24) | (r << 16) | (g << 8) | (b);
1552 /* load the palette from the file */
1553 color_start = avio_rb32(pb);
1554 color_count = avio_rb16(pb);
1555 color_end = avio_rb16(pb);
1556 if ((color_start <= 255) && (color_end <= 255)) {
1557 for (j = color_start; j <= color_end; j++) {
1558 /* each A, R, G, or B component is 16 bits;
1559 * only use the top 8 bits */
1568 sc->palette[j] = (a << 24 ) | (r << 16) | (g << 8) | (b);
1572 sc->has_palette = 1;
1576 static void mov_parse_stsd_audio(MOVContext *c, AVIOContext *pb,
1577 AVStream *st, MOVStreamContext *sc)
1579 int bits_per_sample, flags;
1580 uint16_t version = avio_rb16(pb);
1581 AVDictionaryEntry *compatible_brands = av_dict_get(c->fc->metadata, "compatible_brands", NULL, AV_DICT_MATCH_CASE);
1583 avio_rb16(pb); /* revision level */
1584 avio_rb32(pb); /* vendor */
1586 st->codec->channels = avio_rb16(pb); /* channel count */
1587 st->codec->bits_per_coded_sample = avio_rb16(pb); /* sample size */
1588 av_log(c->fc, AV_LOG_TRACE, "audio channels %d\n", st->codec->channels);
1590 sc->audio_cid = avio_rb16(pb);
1591 avio_rb16(pb); /* packet size = 0 */
1593 st->codec->sample_rate = ((avio_rb32(pb) >> 16));
1595 // Read QT version 1 fields. In version 0 these do not exist.
1596 av_log(c->fc, AV_LOG_TRACE, "version =%d, isom =%d\n", version, c->isom);
1598 (compatible_brands && strstr(compatible_brands->value, "qt "))) {
1601 sc->samples_per_frame = avio_rb32(pb);
1602 avio_rb32(pb); /* bytes per packet */
1603 sc->bytes_per_frame = avio_rb32(pb);
1604 avio_rb32(pb); /* bytes per sample */
1605 } else if (version == 2) {
1606 avio_rb32(pb); /* sizeof struct only */
1607 st->codec->sample_rate = av_int2double(avio_rb64(pb));
1608 st->codec->channels = avio_rb32(pb);
1609 avio_rb32(pb); /* always 0x7F000000 */
1610 st->codec->bits_per_coded_sample = avio_rb32(pb);
1612 flags = avio_rb32(pb); /* lpcm format specific flag */
1613 sc->bytes_per_frame = avio_rb32(pb);
1614 sc->samples_per_frame = avio_rb32(pb);
1615 if (st->codec->codec_tag == MKTAG('l','p','c','m'))
1616 st->codec->codec_id =
1617 ff_mov_get_lpcm_codec_id(st->codec->bits_per_coded_sample,
1622 switch (st->codec->codec_id) {
1623 case AV_CODEC_ID_PCM_S8:
1624 case AV_CODEC_ID_PCM_U8:
1625 if (st->codec->bits_per_coded_sample == 16)
1626 st->codec->codec_id = AV_CODEC_ID_PCM_S16BE;
1628 case AV_CODEC_ID_PCM_S16LE:
1629 case AV_CODEC_ID_PCM_S16BE:
1630 if (st->codec->bits_per_coded_sample == 8)
1631 st->codec->codec_id = AV_CODEC_ID_PCM_S8;
1632 else if (st->codec->bits_per_coded_sample == 24)
1633 st->codec->codec_id =
1634 st->codec->codec_id == AV_CODEC_ID_PCM_S16BE ?
1635 AV_CODEC_ID_PCM_S24BE : AV_CODEC_ID_PCM_S24LE;
1636 else if (st->codec->bits_per_coded_sample == 32)
1637 st->codec->codec_id =
1638 st->codec->codec_id == AV_CODEC_ID_PCM_S16BE ?
1639 AV_CODEC_ID_PCM_S32BE : AV_CODEC_ID_PCM_S32LE;
1641 /* set values for old format before stsd version 1 appeared */
1642 case AV_CODEC_ID_MACE3:
1643 sc->samples_per_frame = 6;
1644 sc->bytes_per_frame = 2 * st->codec->channels;
1646 case AV_CODEC_ID_MACE6:
1647 sc->samples_per_frame = 6;
1648 sc->bytes_per_frame = 1 * st->codec->channels;
1650 case AV_CODEC_ID_ADPCM_IMA_QT:
1651 sc->samples_per_frame = 64;
1652 sc->bytes_per_frame = 34 * st->codec->channels;
1654 case AV_CODEC_ID_GSM:
1655 sc->samples_per_frame = 160;
1656 sc->bytes_per_frame = 33;
1662 bits_per_sample = av_get_bits_per_sample(st->codec->codec_id);
1663 if (bits_per_sample) {
1664 st->codec->bits_per_coded_sample = bits_per_sample;
1665 sc->sample_size = (bits_per_sample >> 3) * st->codec->channels;
1669 static void mov_parse_stsd_subtitle(MOVContext *c, AVIOContext *pb,
1670 AVStream *st, MOVStreamContext *sc,
1673 // ttxt stsd contains display flags, justification, background
1674 // color, fonts, and default styles, so fake an atom to read it
1675 MOVAtom fake_atom = { .size = size };
1676 // mp4s contains a regular esds atom
1677 if (st->codec->codec_tag != AV_RL32("mp4s"))
1678 mov_read_glbl(c, pb, fake_atom);
1679 st->codec->width = sc->width;
1680 st->codec->height = sc->height;
1683 static uint32_t yuv_to_rgba(uint32_t ycbcr)
1688 y = (ycbcr >> 16) & 0xFF;
1689 cr = (ycbcr >> 8) & 0xFF;
1692 b = av_clip_uint8(1.164 * (y - 16) + 2.018 * (cb - 128));
1693 g = av_clip_uint8(1.164 * (y - 16) - 0.813 * (cr - 128) - 0.391 * (cb - 128));
1694 r = av_clip_uint8(1.164 * (y - 16) + 1.596 * (cr - 128));
1696 return (r << 16) | (g << 8) | b;
1699 static int mov_rewrite_dvd_sub_extradata(AVStream *st)
1701 char buf[256] = {0};
1702 uint8_t *src = st->codec->extradata;
1705 if (st->codec->extradata_size != 64)
1708 if (st->codec->width > 0 && st->codec->height > 0)
1709 snprintf(buf, sizeof(buf), "size: %dx%d\n",
1710 st->codec->width, st->codec->height);
1711 av_strlcat(buf, "palette: ", sizeof(buf));
1713 for (i = 0; i < 16; i++) {
1714 uint32_t yuv = AV_RB32(src + i * 4);
1715 uint32_t rgba = yuv_to_rgba(yuv);
1717 av_strlcatf(buf, sizeof(buf), "%06"PRIx32"%s", rgba, i != 15 ? ", " : "");
1720 if (av_strlcat(buf, "\n", sizeof(buf)) >= sizeof(buf))
1723 av_freep(&st->codec->extradata);
1724 st->codec->extradata_size = 0;
1725 st->codec->extradata = av_mallocz(strlen(buf) + FF_INPUT_BUFFER_PADDING_SIZE);
1726 if (!st->codec->extradata)
1727 return AVERROR(ENOMEM);
1728 st->codec->extradata_size = strlen(buf);
1729 memcpy(st->codec->extradata, buf, st->codec->extradata_size);
1734 static int mov_parse_stsd_data(MOVContext *c, AVIOContext *pb,
1735 AVStream *st, MOVStreamContext *sc,
1738 if (st->codec->codec_tag == MKTAG('t','m','c','d')) {
1739 if ((int)size != size || ff_get_extradata(st->codec, pb, size) < 0)
1740 return AVERROR(ENOMEM);
1742 MOVStreamContext *tmcd_ctx = st->priv_data;
1744 val = AV_RB32(st->codec->extradata + 4);
1745 tmcd_ctx->tmcd_flags = val;
1747 st->codec->flags2 |= CODEC_FLAG2_DROP_FRAME_TIMECODE;
1748 st->codec->time_base.den = st->codec->extradata[16]; /* number of frame */
1749 st->codec->time_base.num = 1;
1750 /* adjust for per frame dur in counter mode */
1751 if (tmcd_ctx->tmcd_flags & 0x0008) {
1752 int timescale = AV_RB32(st->codec->extradata + 8);
1753 int framedur = AV_RB32(st->codec->extradata + 12);
1754 st->codec->time_base.den *= timescale;
1755 st->codec->time_base.num *= framedur;
1758 uint32_t len = AV_RB32(st->codec->extradata + 18); /* name atom length */
1759 uint32_t format = AV_RB32(st->codec->extradata + 22);
1760 if (format == AV_RB32("name") && (int64_t)size >= (int64_t)len + 18) {
1761 uint16_t str_size = AV_RB16(st->codec->extradata + 26); /* string length */
1762 if (str_size > 0 && size >= (int)str_size + 26) {
1763 char *reel_name = av_malloc(str_size + 1);
1765 return AVERROR(ENOMEM);
1766 memcpy(reel_name, st->codec->extradata + 30, str_size);
1767 reel_name[str_size] = 0; /* Add null terminator */
1768 /* don't add reel_name if emtpy string */
1769 if (*reel_name == 0) {
1772 av_dict_set(&st->metadata, "reel_name", reel_name, AV_DICT_DONT_STRDUP_VAL);
1779 /* other codec type, just skip (rtp, mp4s ...) */
1780 avio_skip(pb, size);
1785 static int mov_finalize_stsd_codec(MOVContext *c, AVIOContext *pb,
1786 AVStream *st, MOVStreamContext *sc)
1788 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
1789 !st->codec->sample_rate && sc->time_scale > 1)
1790 st->codec->sample_rate = sc->time_scale;
1792 /* special codec parameters handling */
1793 switch (st->codec->codec_id) {
1794 #if CONFIG_DV_DEMUXER
1795 case AV_CODEC_ID_DVAUDIO:
1796 c->dv_fctx = avformat_alloc_context();
1797 c->dv_demux = avpriv_dv_init_demux(c->dv_fctx);
1799 av_log(c->fc, AV_LOG_ERROR, "dv demux context init error\n");
1800 return AVERROR(ENOMEM);
1802 sc->dv_audio_container = 1;
1803 st->codec->codec_id = AV_CODEC_ID_PCM_S16LE;
1806 /* no ifdef since parameters are always those */
1807 case AV_CODEC_ID_QCELP:
1808 st->codec->channels = 1;
1809 // force sample rate for qcelp when not stored in mov
1810 if (st->codec->codec_tag != MKTAG('Q','c','l','p'))
1811 st->codec->sample_rate = 8000;
1812 // FIXME: Why is the following needed for some files?
1813 sc->samples_per_frame = 160;
1814 if (!sc->bytes_per_frame)
1815 sc->bytes_per_frame = 35;
1817 case AV_CODEC_ID_AMR_NB:
1818 st->codec->channels = 1;
1819 /* force sample rate for amr, stsd in 3gp does not store sample rate */
1820 st->codec->sample_rate = 8000;
1822 case AV_CODEC_ID_AMR_WB:
1823 st->codec->channels = 1;
1824 st->codec->sample_rate = 16000;
1826 case AV_CODEC_ID_MP2:
1827 case AV_CODEC_ID_MP3:
1828 /* force type after stsd for m1a hdlr */
1829 st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
1830 st->need_parsing = AVSTREAM_PARSE_FULL;
1832 case AV_CODEC_ID_GSM:
1833 case AV_CODEC_ID_ADPCM_MS:
1834 case AV_CODEC_ID_ADPCM_IMA_WAV:
1835 case AV_CODEC_ID_ILBC:
1836 case AV_CODEC_ID_MACE3:
1837 case AV_CODEC_ID_MACE6:
1838 case AV_CODEC_ID_QDM2:
1839 st->codec->block_align = sc->bytes_per_frame;
1841 case AV_CODEC_ID_ALAC:
1842 if (st->codec->extradata_size == 36) {
1843 st->codec->channels = AV_RB8 (st->codec->extradata + 21);
1844 st->codec->sample_rate = AV_RB32(st->codec->extradata + 32);
1847 case AV_CODEC_ID_AC3:
1848 case AV_CODEC_ID_EAC3:
1849 case AV_CODEC_ID_MPEG1VIDEO:
1850 case AV_CODEC_ID_VC1:
1851 st->need_parsing = AVSTREAM_PARSE_FULL;
1859 static int mov_skip_multiple_stsd(MOVContext *c, AVIOContext *pb,
1860 int codec_tag, int format,
1863 int video_codec_id = ff_codec_get_id(ff_codec_movvideo_tags, format);
1866 (codec_tag != format &&
1867 (c->fc->video_codec_id ? video_codec_id != c->fc->video_codec_id
1868 : codec_tag != MKTAG('j','p','e','g')))) {
1869 /* Multiple fourcc, we skip JPEG. This is not correct, we should
1870 * export it as a separate AVStream but this needs a few changes
1871 * in the MOV demuxer, patch welcome. */
1873 av_log(c->fc, AV_LOG_WARNING, "multiple fourcc not supported\n");
1874 avio_skip(pb, size);
1877 if ( codec_tag == AV_RL32("avc1") ||
1878 codec_tag == AV_RL32("hvc1") ||
1879 codec_tag == AV_RL32("hev1")
1881 av_log(c->fc, AV_LOG_WARNING, "Concatenated H.264 or H.265 might not play correctly.\n");
1886 int ff_mov_read_stsd_entries(MOVContext *c, AVIOContext *pb, int entries)
1889 MOVStreamContext *sc;
1890 int pseudo_stream_id;
1892 if (c->fc->nb_streams < 1)
1894 st = c->fc->streams[c->fc->nb_streams-1];
1897 for (pseudo_stream_id = 0;
1898 pseudo_stream_id < entries && !pb->eof_reached;
1899 pseudo_stream_id++) {
1900 //Parsing Sample description table
1902 int ret, dref_id = 1;
1903 MOVAtom a = { AV_RL32("stsd") };
1904 int64_t start_pos = avio_tell(pb);
1905 int64_t size = avio_rb32(pb); /* size */
1906 uint32_t format = avio_rl32(pb); /* data format */
1909 avio_rb32(pb); /* reserved */
1910 avio_rb16(pb); /* reserved */
1911 dref_id = avio_rb16(pb);
1912 }else if (size <= 7){
1913 av_log(c->fc, AV_LOG_ERROR, "invalid size %"PRId64" in stsd\n", size);
1914 return AVERROR_INVALIDDATA;
1917 if (mov_skip_multiple_stsd(c, pb, st->codec->codec_tag, format,
1918 size - (avio_tell(pb) - start_pos)))
1921 sc->pseudo_stream_id = st->codec->codec_tag ? -1 : pseudo_stream_id;
1922 sc->dref_id= dref_id;
1924 id = mov_codec_id(st, format);
1926 av_log(c->fc, AV_LOG_TRACE, "size=%"PRId64" 4CC= %c%c%c%c codec_type=%d\n", size,
1927 (format >> 0) & 0xff, (format >> 8) & 0xff, (format >> 16) & 0xff,
1928 (format >> 24) & 0xff, st->codec->codec_type);
1930 if (st->codec->codec_type==AVMEDIA_TYPE_VIDEO) {
1931 st->codec->codec_id = id;
1932 mov_parse_stsd_video(c, pb, st, sc);
1933 } else if (st->codec->codec_type==AVMEDIA_TYPE_AUDIO) {
1934 st->codec->codec_id = id;
1935 mov_parse_stsd_audio(c, pb, st, sc);
1936 } else if (st->codec->codec_type==AVMEDIA_TYPE_SUBTITLE){
1937 st->codec->codec_id = id;
1938 mov_parse_stsd_subtitle(c, pb, st, sc,
1939 size - (avio_tell(pb) - start_pos));
1941 ret = mov_parse_stsd_data(c, pb, st, sc,
1942 size - (avio_tell(pb) - start_pos));
1946 /* this will read extra atoms at the end (wave, alac, damr, avcC, hvcC, SMI ...) */
1947 a.size = size - (avio_tell(pb) - start_pos);
1949 if ((ret = mov_read_default(c, pb, a)) < 0)
1951 } else if (a.size > 0)
1952 avio_skip(pb, a.size);
1955 if (pb->eof_reached)
1958 return mov_finalize_stsd_codec(c, pb, st, sc);
1961 static int mov_read_stsd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1965 avio_r8(pb); /* version */
1966 avio_rb24(pb); /* flags */
1967 entries = avio_rb32(pb);
1969 return ff_mov_read_stsd_entries(c, pb, entries);
1972 static int mov_read_stsc(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1975 MOVStreamContext *sc;
1976 unsigned int i, entries;
1978 if (c->fc->nb_streams < 1)
1980 st = c->fc->streams[c->fc->nb_streams-1];
1983 avio_r8(pb); /* version */
1984 avio_rb24(pb); /* flags */
1986 entries = avio_rb32(pb);
1988 av_log(c->fc, AV_LOG_TRACE, "track[%i].stsc.entries = %i\n", c->fc->nb_streams-1, entries);
1993 av_log(c->fc, AV_LOG_WARNING, "Duplicated STSC atom\n");
1994 av_free(sc->stsc_data);
1996 sc->stsc_data = av_malloc_array(entries, sizeof(*sc->stsc_data));
1998 return AVERROR(ENOMEM);
2000 for (i = 0; i < entries && !pb->eof_reached; i++) {
2001 sc->stsc_data[i].first = avio_rb32(pb);
2002 sc->stsc_data[i].count = avio_rb32(pb);
2003 sc->stsc_data[i].id = avio_rb32(pb);
2008 if (pb->eof_reached)
2014 static int mov_read_stps(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2017 MOVStreamContext *sc;
2018 unsigned i, entries;
2020 if (c->fc->nb_streams < 1)
2022 st = c->fc->streams[c->fc->nb_streams-1];
2025 avio_rb32(pb); // version + flags
2027 entries = avio_rb32(pb);
2029 av_log(c->fc, AV_LOG_WARNING, "Duplicated STPS atom\n");
2030 av_free(sc->stps_data);
2032 sc->stps_data = av_malloc_array(entries, sizeof(*sc->stps_data));
2034 return AVERROR(ENOMEM);
2036 for (i = 0; i < entries && !pb->eof_reached; i++) {
2037 sc->stps_data[i] = avio_rb32(pb);
2038 //av_log(c->fc, AV_LOG_TRACE, "stps %d\n", sc->stps_data[i]);
2043 if (pb->eof_reached)
2049 static int mov_read_stss(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2052 MOVStreamContext *sc;
2053 unsigned int i, entries;
2055 if (c->fc->nb_streams < 1)
2057 st = c->fc->streams[c->fc->nb_streams-1];
2060 avio_r8(pb); /* version */
2061 avio_rb24(pb); /* flags */
2063 entries = avio_rb32(pb);
2065 av_log(c->fc, AV_LOG_TRACE, "keyframe_count = %d\n", entries);
2069 sc->keyframe_absent = 1;
2070 if (!st->need_parsing && st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2071 st->need_parsing = AVSTREAM_PARSE_HEADERS;
2075 av_log(c->fc, AV_LOG_WARNING, "Duplicated STSS atom\n");
2076 if (entries >= UINT_MAX / sizeof(int))
2077 return AVERROR_INVALIDDATA;
2078 av_freep(&sc->keyframes);
2079 sc->keyframe_count = 0;
2080 sc->keyframes = av_malloc_array(entries, sizeof(*sc->keyframes));
2082 return AVERROR(ENOMEM);
2084 for (i = 0; i < entries && !pb->eof_reached; i++) {
2085 sc->keyframes[i] = avio_rb32(pb);
2086 //av_log(c->fc, AV_LOG_TRACE, "keyframes[]=%d\n", sc->keyframes[i]);
2089 sc->keyframe_count = i;
2091 if (pb->eof_reached)
2097 static int mov_read_stsz(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2100 MOVStreamContext *sc;
2101 unsigned int i, entries, sample_size, field_size, num_bytes;
2105 if (c->fc->nb_streams < 1)
2107 st = c->fc->streams[c->fc->nb_streams-1];
2110 avio_r8(pb); /* version */
2111 avio_rb24(pb); /* flags */
2113 if (atom.type == MKTAG('s','t','s','z')) {
2114 sample_size = avio_rb32(pb);
2115 if (!sc->sample_size) /* do not overwrite value computed in stsd */
2116 sc->sample_size = sample_size;
2117 sc->stsz_sample_size = sample_size;
2121 avio_rb24(pb); /* reserved */
2122 field_size = avio_r8(pb);
2124 entries = avio_rb32(pb);
2126 av_log(c->fc, AV_LOG_TRACE, "sample_size = %d sample_count = %d\n", sc->sample_size, entries);
2128 sc->sample_count = entries;
2132 if (field_size != 4 && field_size != 8 && field_size != 16 && field_size != 32) {
2133 av_log(c->fc, AV_LOG_ERROR, "Invalid sample field size %d\n", field_size);
2134 return AVERROR_INVALIDDATA;
2139 if (entries >= (UINT_MAX - 4) / field_size)
2140 return AVERROR_INVALIDDATA;
2141 if (sc->sample_sizes)
2142 av_log(c->fc, AV_LOG_WARNING, "Duplicated STSZ atom\n");
2143 av_free(sc->sample_sizes);
2144 sc->sample_count = 0;
2145 sc->sample_sizes = av_malloc_array(entries, sizeof(*sc->sample_sizes));
2146 if (!sc->sample_sizes)
2147 return AVERROR(ENOMEM);
2149 num_bytes = (entries*field_size+4)>>3;
2151 buf = av_malloc(num_bytes+FF_INPUT_BUFFER_PADDING_SIZE);
2153 av_freep(&sc->sample_sizes);
2154 return AVERROR(ENOMEM);
2157 if (avio_read(pb, buf, num_bytes) < num_bytes) {
2158 av_freep(&sc->sample_sizes);
2160 return AVERROR_INVALIDDATA;
2163 init_get_bits(&gb, buf, 8*num_bytes);
2165 for (i = 0; i < entries && !pb->eof_reached; i++) {
2166 sc->sample_sizes[i] = get_bits_long(&gb, field_size);
2167 sc->data_size += sc->sample_sizes[i];
2170 sc->sample_count = i;
2172 if (pb->eof_reached)
2179 static int mov_read_stts(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2182 MOVStreamContext *sc;
2183 unsigned int i, entries;
2185 int64_t total_sample_count=0;
2187 if (c->fc->nb_streams < 1)
2189 st = c->fc->streams[c->fc->nb_streams-1];
2192 avio_r8(pb); /* version */
2193 avio_rb24(pb); /* flags */
2194 entries = avio_rb32(pb);
2196 av_log(c->fc, AV_LOG_TRACE, "track[%i].stts.entries = %i\n",
2197 c->fc->nb_streams-1, entries);
2200 av_log(c->fc, AV_LOG_WARNING, "Duplicated STTS atom\n");
2201 av_free(sc->stts_data);
2203 sc->stts_data = av_malloc_array(entries, sizeof(*sc->stts_data));
2205 return AVERROR(ENOMEM);
2207 for (i = 0; i < entries && !pb->eof_reached; i++) {
2208 int sample_duration;
2211 sample_count=avio_rb32(pb);
2212 sample_duration = avio_rb32(pb);
2214 /* sample_duration < 0 is invalid based on the spec */
2215 if (sample_duration < 0) {
2216 av_log(c->fc, AV_LOG_ERROR, "Invalid SampleDelta %d in STTS, at %d st:%d\n",
2217 sample_duration, i, c->fc->nb_streams-1);
2218 sample_duration = 1;
2220 if (sample_count < 0) {
2221 av_log(c->fc, AV_LOG_ERROR, "Invalid sample_count=%d\n", sample_count);
2222 return AVERROR_INVALIDDATA;
2224 sc->stts_data[i].count= sample_count;
2225 sc->stts_data[i].duration= sample_duration;
2227 av_log(c->fc, AV_LOG_TRACE, "sample_count=%d, sample_duration=%d\n",
2228 sample_count, sample_duration);
2232 && sample_count == 1
2233 && total_sample_count > 100
2234 && sample_duration/10 > duration / total_sample_count)
2235 sample_duration = duration / total_sample_count;
2236 duration+=(int64_t)sample_duration*sample_count;
2237 total_sample_count+=sample_count;
2242 sc->duration_for_fps += duration;
2243 sc->nb_frames_for_fps += total_sample_count;
2245 if (pb->eof_reached)
2248 st->nb_frames= total_sample_count;
2250 st->duration= duration;
2251 sc->track_end = duration;
2255 static void mov_update_dts_shift(MOVStreamContext *sc, int duration)
2258 sc->dts_shift = FFMAX(sc->dts_shift, -duration);
2262 static int mov_read_ctts(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2265 MOVStreamContext *sc;
2266 unsigned int i, entries;
2268 if (c->fc->nb_streams < 1)
2270 st = c->fc->streams[c->fc->nb_streams-1];
2273 avio_r8(pb); /* version */
2274 avio_rb24(pb); /* flags */
2275 entries = avio_rb32(pb);
2277 av_log(c->fc, AV_LOG_TRACE, "track[%i].ctts.entries = %i\n", c->fc->nb_streams-1, entries);
2281 if (entries >= UINT_MAX / sizeof(*sc->ctts_data))
2282 return AVERROR_INVALIDDATA;
2283 sc->ctts_data = av_malloc(entries * sizeof(*sc->ctts_data));
2285 return AVERROR(ENOMEM);
2287 for (i = 0; i < entries && !pb->eof_reached; i++) {
2288 int count =avio_rb32(pb);
2289 int duration =avio_rb32(pb);
2291 sc->ctts_data[i].count = count;
2292 sc->ctts_data[i].duration= duration;
2294 av_log(c->fc, AV_LOG_TRACE, "count=%d, duration=%d\n",
2297 if (FFABS(duration) > (1<<28) && i+2<entries) {
2298 av_log(c->fc, AV_LOG_WARNING, "CTTS invalid\n");
2299 av_freep(&sc->ctts_data);
2305 mov_update_dts_shift(sc, duration);
2310 if (pb->eof_reached)
2313 av_log(c->fc, AV_LOG_TRACE, "dts shift %d\n", sc->dts_shift);
2318 static int mov_read_sbgp(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2321 MOVStreamContext *sc;
2322 unsigned int i, entries;
2324 uint32_t grouping_type;
2326 if (c->fc->nb_streams < 1)
2328 st = c->fc->streams[c->fc->nb_streams-1];
2331 version = avio_r8(pb); /* version */
2332 avio_rb24(pb); /* flags */
2333 grouping_type = avio_rl32(pb);
2334 if (grouping_type != MKTAG( 'r','a','p',' '))
2335 return 0; /* only support 'rap ' grouping */
2337 avio_rb32(pb); /* grouping_type_parameter */
2339 entries = avio_rb32(pb);
2343 av_log(c->fc, AV_LOG_WARNING, "Duplicated SBGP atom\n");
2344 av_free(sc->rap_group);
2345 sc->rap_group_count = 0;
2346 sc->rap_group = av_malloc_array(entries, sizeof(*sc->rap_group));
2348 return AVERROR(ENOMEM);
2350 for (i = 0; i < entries && !pb->eof_reached; i++) {
2351 sc->rap_group[i].count = avio_rb32(pb); /* sample_count */
2352 sc->rap_group[i].index = avio_rb32(pb); /* group_description_index */
2355 sc->rap_group_count = i;
2357 return pb->eof_reached ? AVERROR_EOF : 0;
2360 static void mov_build_index(MOVContext *mov, AVStream *st)
2362 MOVStreamContext *sc = st->priv_data;
2363 int64_t current_offset;
2364 int64_t current_dts = 0;
2365 unsigned int stts_index = 0;
2366 unsigned int stsc_index = 0;
2367 unsigned int stss_index = 0;
2368 unsigned int stps_index = 0;
2370 uint64_t stream_size = 0;
2372 if (sc->elst_count) {
2373 int i, edit_start_index = 0, unsupported = 0;
2374 int64_t empty_duration = 0; // empty duration of the first edit list entry
2375 int64_t start_time = 0; // start time of the media
2377 for (i = 0; i < sc->elst_count; i++) {
2378 const MOVElst *e = &sc->elst_data[i];
2379 if (i == 0 && e->time == -1) {
2380 /* if empty, the first entry is the start time of the stream
2381 * relative to the presentation itself */
2382 empty_duration = e->duration;
2383 edit_start_index = 1;
2384 } else if (i == edit_start_index && e->time >= 0) {
2385 start_time = e->time;
2390 av_log(mov->fc, AV_LOG_WARNING, "multiple edit list entries, "
2391 "a/v desync might occur, patch welcome\n");
2393 /* adjust first dts according to edit list */
2394 if ((empty_duration || start_time) && mov->time_scale > 0) {
2396 empty_duration = av_rescale(empty_duration, sc->time_scale, mov->time_scale);
2397 sc->time_offset = start_time - empty_duration;
2398 current_dts = -sc->time_offset;
2399 if (sc->ctts_count>0 && sc->stts_count>0 &&
2400 sc->ctts_data[0].duration / FFMAX(sc->stts_data[0].duration, 1) > 16) {
2401 /* more than 16 frames delay, dts are likely wrong
2402 this happens with files created by iMovie */
2404 st->codec->has_b_frames = 1;
2409 /* only use old uncompressed audio chunk demuxing when stts specifies it */
2410 if (!(st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
2411 sc->stts_count == 1 && sc->stts_data[0].duration == 1)) {
2412 unsigned int current_sample = 0;
2413 unsigned int stts_sample = 0;
2414 unsigned int sample_size;
2415 unsigned int distance = 0;
2416 unsigned int rap_group_index = 0;
2417 unsigned int rap_group_sample = 0;
2418 int rap_group_present = sc->rap_group_count && sc->rap_group;
2419 int key_off = (sc->keyframe_count && sc->keyframes[0] > 0) || (sc->stps_count && sc->stps_data[0] > 0);
2421 current_dts -= sc->dts_shift;
2423 if (!sc->sample_count || st->nb_index_entries)
2425 if (sc->sample_count >= UINT_MAX / sizeof(*st->index_entries) - st->nb_index_entries)
2427 if (av_reallocp_array(&st->index_entries,
2428 st->nb_index_entries + sc->sample_count,
2429 sizeof(*st->index_entries)) < 0) {
2430 st->nb_index_entries = 0;
2433 st->index_entries_allocated_size = (st->nb_index_entries + sc->sample_count) * sizeof(*st->index_entries);
2435 for (i = 0; i < sc->chunk_count; i++) {
2436 int64_t next_offset = i+1 < sc->chunk_count ? sc->chunk_offsets[i+1] : INT64_MAX;
2437 current_offset = sc->chunk_offsets[i];
2438 while (stsc_index + 1 < sc->stsc_count &&
2439 i + 1 == sc->stsc_data[stsc_index + 1].first)
2442 if (next_offset > current_offset && sc->sample_size>0 && sc->sample_size < sc->stsz_sample_size &&
2443 sc->stsc_data[stsc_index].count * (int64_t)sc->stsz_sample_size > next_offset - current_offset) {
2444 av_log(mov->fc, AV_LOG_WARNING, "STSZ sample size %d invalid (too large), ignoring\n", sc->stsz_sample_size);
2445 sc->stsz_sample_size = sc->sample_size;
2447 if (sc->stsz_sample_size>0 && sc->stsz_sample_size < sc->sample_size) {
2448 av_log(mov->fc, AV_LOG_WARNING, "STSZ sample size %d invalid (too small), ignoring\n", sc->stsz_sample_size);
2449 sc->stsz_sample_size = sc->sample_size;
2452 for (j = 0; j < sc->stsc_data[stsc_index].count; j++) {
2454 if (current_sample >= sc->sample_count) {
2455 av_log(mov->fc, AV_LOG_ERROR, "wrong sample count\n");
2459 if (!sc->keyframe_absent && (!sc->keyframe_count || current_sample+key_off == sc->keyframes[stss_index])) {
2461 if (stss_index + 1 < sc->keyframe_count)
2463 } else if (sc->stps_count && current_sample+key_off == sc->stps_data[stps_index]) {
2465 if (stps_index + 1 < sc->stps_count)
2468 if (rap_group_present && rap_group_index < sc->rap_group_count) {
2469 if (sc->rap_group[rap_group_index].index > 0)
2471 if (++rap_group_sample == sc->rap_group[rap_group_index].count) {
2472 rap_group_sample = 0;
2476 if (sc->keyframe_absent
2478 && !rap_group_present
2479 && (st->codec->codec_type == AVMEDIA_TYPE_AUDIO || (i==0 && j==0)))
2483 sample_size = sc->stsz_sample_size > 0 ? sc->stsz_sample_size : sc->sample_sizes[current_sample];
2484 if (sc->pseudo_stream_id == -1 ||
2485 sc->stsc_data[stsc_index].id - 1 == sc->pseudo_stream_id) {
2486 AVIndexEntry *e = &st->index_entries[st->nb_index_entries++];
2487 e->pos = current_offset;
2488 e->timestamp = current_dts;
2489 e->size = sample_size;
2490 e->min_distance = distance;
2491 e->flags = keyframe ? AVINDEX_KEYFRAME : 0;
2492 av_log(mov->fc, AV_LOG_TRACE, "AVIndex stream %d, sample %d, offset %"PRIx64", dts %"PRId64", "
2493 "size %d, distance %d, keyframe %d\n", st->index, current_sample,
2494 current_offset, current_dts, sample_size, distance, keyframe);
2495 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && st->nb_index_entries < 100)
2496 ff_rfps_add_frame(mov->fc, st, current_dts);
2499 current_offset += sample_size;
2500 stream_size += sample_size;
2501 current_dts += sc->stts_data[stts_index].duration;
2505 if (stts_index + 1 < sc->stts_count && stts_sample == sc->stts_data[stts_index].count) {
2511 if (st->duration > 0)
2512 st->codec->bit_rate = stream_size*8*sc->time_scale/st->duration;
2514 unsigned chunk_samples, total = 0;
2516 // compute total chunk count
2517 for (i = 0; i < sc->stsc_count; i++) {
2518 unsigned count, chunk_count;
2520 chunk_samples = sc->stsc_data[i].count;
2521 if (i != sc->stsc_count - 1 &&
2522 sc->samples_per_frame && chunk_samples % sc->samples_per_frame) {
2523 av_log(mov->fc, AV_LOG_ERROR, "error unaligned chunk\n");
2527 if (sc->samples_per_frame >= 160) { // gsm
2528 count = chunk_samples / sc->samples_per_frame;
2529 } else if (sc->samples_per_frame > 1) {
2530 unsigned samples = (1024/sc->samples_per_frame)*sc->samples_per_frame;
2531 count = (chunk_samples+samples-1) / samples;
2533 count = (chunk_samples+1023) / 1024;
2536 if (i < sc->stsc_count - 1)
2537 chunk_count = sc->stsc_data[i+1].first - sc->stsc_data[i].first;
2539 chunk_count = sc->chunk_count - (sc->stsc_data[i].first - 1);
2540 total += chunk_count * count;
2543 av_log(mov->fc, AV_LOG_TRACE, "chunk count %d\n", total);
2544 if (total >= UINT_MAX / sizeof(*st->index_entries) - st->nb_index_entries)
2546 if (av_reallocp_array(&st->index_entries,
2547 st->nb_index_entries + total,
2548 sizeof(*st->index_entries)) < 0) {
2549 st->nb_index_entries = 0;
2552 st->index_entries_allocated_size = (st->nb_index_entries + total) * sizeof(*st->index_entries);
2555 for (i = 0; i < sc->chunk_count; i++) {
2556 current_offset = sc->chunk_offsets[i];
2557 if (stsc_index + 1 < sc->stsc_count &&
2558 i + 1 == sc->stsc_data[stsc_index + 1].first)
2560 chunk_samples = sc->stsc_data[stsc_index].count;
2562 while (chunk_samples > 0) {
2564 unsigned size, samples;
2566 if (sc->samples_per_frame >= 160) { // gsm
2567 samples = sc->samples_per_frame;
2568 size = sc->bytes_per_frame;
2570 if (sc->samples_per_frame > 1) {
2571 samples = FFMIN((1024 / sc->samples_per_frame)*
2572 sc->samples_per_frame, chunk_samples);
2573 size = (samples / sc->samples_per_frame) * sc->bytes_per_frame;
2575 samples = FFMIN(1024, chunk_samples);
2576 size = samples * sc->sample_size;
2580 if (st->nb_index_entries >= total) {
2581 av_log(mov->fc, AV_LOG_ERROR, "wrong chunk count %d\n", total);
2584 e = &st->index_entries[st->nb_index_entries++];
2585 e->pos = current_offset;
2586 e->timestamp = current_dts;
2588 e->min_distance = 0;
2589 e->flags = AVINDEX_KEYFRAME;
2590 av_log(mov->fc, AV_LOG_TRACE, "AVIndex stream %d, chunk %d, offset %"PRIx64", dts %"PRId64", "
2591 "size %d, duration %d\n", st->index, i, current_offset, current_dts,
2594 current_offset += size;
2595 current_dts += samples;
2596 chunk_samples -= samples;
2602 static int mov_open_dref(AVIOContext **pb, const char *src, MOVDref *ref,
2603 AVIOInterruptCB *int_cb, int use_absolute_path, AVFormatContext *fc)
2605 /* try relative path, we do not try the absolute because it can leak information about our
2606 system to an attacker */
2607 if (ref->nlvl_to > 0 && ref->nlvl_from > 0 && ref->path[0] != '/') {
2608 char filename[1025];
2609 const char *src_path;
2612 /* find a source dir */
2613 src_path = strrchr(src, '/');
2619 /* find a next level down to target */
2620 for (i = 0, l = strlen(ref->path) - 1; l >= 0; l--)
2621 if (ref->path[l] == '/') {
2622 if (i == ref->nlvl_to - 1)
2628 /* compose filename if next level down to target was found */
2629 if (i == ref->nlvl_to - 1 && src_path - src < sizeof(filename)) {
2630 memcpy(filename, src, src_path - src);
2631 filename[src_path - src] = 0;
2633 for (i = 1; i < ref->nlvl_from; i++)
2634 av_strlcat(filename, "../", sizeof(filename));
2636 av_strlcat(filename, ref->path + l + 1, sizeof(filename));
2637 if (!use_absolute_path)
2638 if(strstr(ref->path + l + 1, "..") || ref->nlvl_from > 1)
2639 return AVERROR(ENOENT);
2641 if (strlen(filename) + 1 == sizeof(filename))
2642 return AVERROR(ENOENT);
2643 if (!avio_open2(pb, filename, AVIO_FLAG_READ, int_cb, NULL))
2646 } else if (use_absolute_path) {
2647 av_log(fc, AV_LOG_WARNING, "Using absolute path on user request, "
2648 "this is a possible security issue\n");
2649 if (!avio_open2(pb, ref->path, AVIO_FLAG_READ, int_cb, NULL))
2653 return AVERROR(ENOENT);
2656 static void fix_timescale(MOVContext *c, MOVStreamContext *sc)
2658 if (sc->time_scale <= 0) {
2659 av_log(c->fc, AV_LOG_WARNING, "stream %d, timescale not set\n", sc->ffindex);
2660 sc->time_scale = c->time_scale;
2661 if (sc->time_scale <= 0)
2666 static int mov_read_trak(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2669 MOVStreamContext *sc;
2672 st = avformat_new_stream(c->fc, NULL);
2673 if (!st) return AVERROR(ENOMEM);
2674 st->id = c->fc->nb_streams;
2675 sc = av_mallocz(sizeof(MOVStreamContext));
2676 if (!sc) return AVERROR(ENOMEM);
2679 st->codec->codec_type = AVMEDIA_TYPE_DATA;
2680 sc->ffindex = st->index;
2682 if ((ret = mov_read_default(c, pb, atom)) < 0)
2686 if (sc->chunk_count && (!sc->stts_count || !sc->stsc_count ||
2687 (!sc->sample_size && !sc->sample_count))) {
2688 av_log(c->fc, AV_LOG_ERROR, "stream %d, missing mandatory atoms, broken header\n",
2693 fix_timescale(c, sc);
2695 avpriv_set_pts_info(st, 64, 1, sc->time_scale);
2697 mov_build_index(c, st);
2699 if (sc->dref_id-1 < sc->drefs_count && sc->drefs[sc->dref_id-1].path) {
2700 MOVDref *dref = &sc->drefs[sc->dref_id - 1];
2701 if (mov_open_dref(&sc->pb, c->fc->filename, dref, &c->fc->interrupt_callback,
2702 c->use_absolute_path, c->fc) < 0)
2703 av_log(c->fc, AV_LOG_ERROR,
2704 "stream %d, error opening alias: path='%s', dir='%s', "
2705 "filename='%s', volume='%s', nlvl_from=%d, nlvl_to=%d\n",
2706 st->index, dref->path, dref->dir, dref->filename,
2707 dref->volume, dref->nlvl_from, dref->nlvl_to);
2710 sc->pb_is_copied = 1;
2713 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
2714 if (!st->sample_aspect_ratio.num && st->codec->width && st->codec->height &&
2715 sc->height && sc->width &&
2716 (st->codec->width != sc->width || st->codec->height != sc->height)) {
2717 st->sample_aspect_ratio = av_d2q(((double)st->codec->height * sc->width) /
2718 ((double)st->codec->width * sc->height), INT_MAX);
2721 #if FF_API_R_FRAME_RATE
2722 if (sc->stts_count == 1 || (sc->stts_count == 2 && sc->stts_data[1].count == 1))
2723 av_reduce(&st->r_frame_rate.num, &st->r_frame_rate.den,
2724 sc->time_scale, sc->stts_data[0].duration, INT_MAX);
2728 // done for ai5q, ai52, ai55, ai1q, ai12 and ai15.
2729 if (!st->codec->extradata_size && st->codec->codec_id == AV_CODEC_ID_H264 &&
2730 TAG_IS_AVCI(st->codec->codec_tag)) {
2731 ret = ff_generate_avci_extradata(st);
2736 switch (st->codec->codec_id) {
2737 #if CONFIG_H261_DECODER
2738 case AV_CODEC_ID_H261:
2740 #if CONFIG_H263_DECODER
2741 case AV_CODEC_ID_H263:
2743 #if CONFIG_MPEG4_DECODER
2744 case AV_CODEC_ID_MPEG4:
2746 st->codec->width = 0; /* let decoder init width/height */
2747 st->codec->height= 0;
2751 /* Do not need those anymore. */
2752 av_freep(&sc->chunk_offsets);
2753 av_freep(&sc->stsc_data);
2754 av_freep(&sc->sample_sizes);
2755 av_freep(&sc->keyframes);
2756 av_freep(&sc->stts_data);
2757 av_freep(&sc->stps_data);
2758 av_freep(&sc->elst_data);
2759 av_freep(&sc->rap_group);
2764 static int mov_read_ilst(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2767 c->itunes_metadata = 1;
2768 ret = mov_read_default(c, pb, atom);
2769 c->itunes_metadata = 0;
2773 static int mov_read_custom_2plus(MOVContext *c, AVIOContext *pb, int size)
2775 int64_t end = avio_tell(pb) + size;
2776 uint8_t *key = NULL, *val = NULL;
2779 MOVStreamContext *sc;
2781 if (c->fc->nb_streams < 1)
2783 st = c->fc->streams[c->fc->nb_streams-1];
2786 for (i = 0; i < 2; i++) {
2790 if (end - avio_tell(pb) <= 12)
2793 len = avio_rb32(pb);
2794 tag = avio_rl32(pb);
2795 avio_skip(pb, 4); // flags
2797 if (len < 12 || len - 12 > end - avio_tell(pb))
2801 if (tag == MKTAG('n', 'a', 'm', 'e'))
2803 else if (tag == MKTAG('d', 'a', 't', 'a') && len > 4) {
2810 *p = av_malloc(len + 1);
2813 avio_read(pb, *p, len);
2818 if (strcmp(key, "iTunSMPB") == 0) {
2819 int priming, remainder, samples;
2820 if(sscanf(val, "%*X %X %X %X", &priming, &remainder, &samples) == 3){
2821 if(priming>0 && priming<16384)
2822 sc->start_pad = priming;
2825 if (strcmp(key, "cdec") != 0) {
2826 av_dict_set(&c->fc->metadata, key, val,
2827 AV_DICT_DONT_STRDUP_KEY | AV_DICT_DONT_STRDUP_VAL);
2832 avio_seek(pb, end, SEEK_SET);
2838 static int mov_read_custom(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2840 int64_t end = avio_tell(pb) + atom.size;
2846 len = avio_rb32(pb);
2847 tag = avio_rl32(pb);
2849 if (len > atom.size)
2852 if (tag == MKTAG('m', 'e', 'a', 'n') && len > 12) {
2853 uint8_t domain[128];
2856 avio_skip(pb, 4); // flags
2859 domain_len = avio_get_str(pb, len, domain, sizeof(domain));
2860 avio_skip(pb, len - domain_len);
2861 return mov_read_custom_2plus(c, pb, end - avio_tell(pb));
2865 av_log(c->fc, AV_LOG_VERBOSE,
2866 "Unhandled or malformed custom metadata of size %"PRId64"\n", atom.size);
2870 static int mov_read_meta(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2872 while (atom.size > 8) {
2873 uint32_t tag = avio_rl32(pb);
2875 if (tag == MKTAG('h','d','l','r')) {
2876 avio_seek(pb, -8, SEEK_CUR);
2878 return mov_read_default(c, pb, atom);
2884 static int mov_read_tkhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2889 int display_matrix[3][3];
2891 MOVStreamContext *sc;
2895 if (c->fc->nb_streams < 1)
2897 st = c->fc->streams[c->fc->nb_streams-1];
2900 version = avio_r8(pb);
2901 flags = avio_rb24(pb);
2902 st->disposition |= (flags & MOV_TKHD_FLAG_ENABLED) ? AV_DISPOSITION_DEFAULT : 0;
2908 avio_rb32(pb); /* creation time */
2909 avio_rb32(pb); /* modification time */
2911 st->id = (int)avio_rb32(pb); /* track id (NOT 0 !)*/
2912 avio_rb32(pb); /* reserved */
2914 /* highlevel (considering edits) duration in movie timebase */
2915 (version == 1) ? avio_rb64(pb) : avio_rb32(pb);
2916 avio_rb32(pb); /* reserved */
2917 avio_rb32(pb); /* reserved */
2919 avio_rb16(pb); /* layer */
2920 avio_rb16(pb); /* alternate group */
2921 avio_rb16(pb); /* volume */
2922 avio_rb16(pb); /* reserved */
2924 //read in the display matrix (outlined in ISO 14496-12, Section 6.2.2)
2925 // they're kept in fixed point format through all calculations
2926 // save u,v,z to store the whole matrix in the AV_PKT_DATA_DISPLAYMATRIX
2927 // side data, but the scale factor is not needed to calculate aspect ratio
2928 for (i = 0; i < 3; i++) {
2929 display_matrix[i][0] = avio_rb32(pb); // 16.16 fixed point
2930 display_matrix[i][1] = avio_rb32(pb); // 16.16 fixed point
2931 display_matrix[i][2] = avio_rb32(pb); // 2.30 fixed point
2934 width = avio_rb32(pb); // 16.16 fixed point track width
2935 height = avio_rb32(pb); // 16.16 fixed point track height
2936 sc->width = width >> 16;
2937 sc->height = height >> 16;
2939 // save the matrix and add rotate metadata when it is not the default
2941 if (display_matrix[0][0] != (1 << 16) ||
2942 display_matrix[1][1] != (1 << 16) ||
2943 display_matrix[2][2] != (1 << 30) ||
2944 display_matrix[0][1] || display_matrix[0][2] ||
2945 display_matrix[1][0] || display_matrix[1][2] ||
2946 display_matrix[2][0] || display_matrix[2][1]) {
2950 av_freep(&sc->display_matrix);
2951 sc->display_matrix = av_malloc(sizeof(int32_t) * 9);
2952 if (!sc->display_matrix)
2953 return AVERROR(ENOMEM);
2955 for (i = 0; i < 3; i++)
2956 for (j = 0; j < 3; j++)
2957 sc->display_matrix[i * 3 + j] = display_matrix[i][j];
2959 rotate = av_display_rotation_get(sc->display_matrix);
2960 if (!isnan(rotate)) {
2961 char rotate_buf[64];
2963 if (rotate < 0) // for backward compatibility
2965 snprintf(rotate_buf, sizeof(rotate_buf), "%g", rotate);
2966 av_dict_set(&st->metadata, "rotate", rotate_buf, 0);
2970 // transform the display width/height according to the matrix
2971 // to keep the same scale, use [width height 1<<16]
2972 if (width && height && sc->display_matrix) {
2973 double disp_transform[2];
2975 #define SQR(a) ((a)*(double)(a))
2976 for (i = 0; i < 2; i++)
2977 disp_transform[i] = sqrt(SQR(display_matrix[i][0]) + SQR(display_matrix[i][1]));
2979 if (disp_transform[0] > 0 && disp_transform[1] > 0 &&
2980 disp_transform[0] < (1<<24) && disp_transform[1] < (1<<24) &&
2981 fabs((disp_transform[0] / disp_transform[1]) - 1.0) > 0.01)
2982 st->sample_aspect_ratio = av_d2q(
2983 disp_transform[0] / disp_transform[1],
2989 static int mov_read_tfhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2991 MOVFragment *frag = &c->fragment;
2992 MOVTrackExt *trex = NULL;
2993 MOVFragmentIndex* index = NULL;
2994 int flags, track_id, i;
2996 avio_r8(pb); /* version */
2997 flags = avio_rb24(pb);
2999 track_id = avio_rb32(pb);
3001 return AVERROR_INVALIDDATA;
3002 frag->track_id = track_id;
3003 for (i = 0; i < c->trex_count; i++)
3004 if (c->trex_data[i].track_id == frag->track_id) {
3005 trex = &c->trex_data[i];
3009 av_log(c->fc, AV_LOG_ERROR, "could not find corresponding trex\n");
3010 return AVERROR_INVALIDDATA;
3012 for (i = 0; i < c->fragment_index_count; i++) {
3013 MOVFragmentIndex* candidate = c->fragment_index_data[i];
3014 if (candidate->track_id == frag->track_id) {
3015 av_log(c->fc, AV_LOG_DEBUG,
3016 "found fragment index for track %u\n", frag->track_id);
3022 frag->base_data_offset = flags & MOV_TFHD_BASE_DATA_OFFSET ?
3023 avio_rb64(pb) : flags & MOV_TFHD_DEFAULT_BASE_IS_MOOF ?
3024 frag->moof_offset : frag->implicit_offset;
3025 frag->stsd_id = flags & MOV_TFHD_STSD_ID ? avio_rb32(pb) : trex->stsd_id;
3027 frag->duration = flags & MOV_TFHD_DEFAULT_DURATION ?
3028 avio_rb32(pb) : trex->duration;
3029 frag->size = flags & MOV_TFHD_DEFAULT_SIZE ?
3030 avio_rb32(pb) : trex->size;
3031 frag->flags = flags & MOV_TFHD_DEFAULT_FLAGS ?
3032 avio_rb32(pb) : trex->flags;
3033 frag->time = AV_NOPTS_VALUE;
3036 for (i = index->current_item; i < index->item_count; i++) {
3037 if (frag->implicit_offset == index->items[i].moof_offset) {
3038 av_log(c->fc, AV_LOG_DEBUG, "found fragment index entry "
3039 "for track %u and moof_offset %"PRId64"\n",
3040 frag->track_id, index->items[i].moof_offset);
3041 frag->time = index->items[i].time;
3042 index->current_item = i + 1;
3047 av_log(c->fc, AV_LOG_WARNING, "track %u has a fragment index "
3048 "but it doesn't have an (in-order) entry for moof_offset "
3049 "%"PRId64"\n", frag->track_id, frag->implicit_offset);
3052 av_log(c->fc, AV_LOG_TRACE, "frag flags 0x%x\n", frag->flags);
3056 static int mov_read_chap(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3058 c->chapter_track = avio_rb32(pb);
3062 static int mov_read_trex(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3067 if ((uint64_t)c->trex_count+1 >= UINT_MAX / sizeof(*c->trex_data))
3068 return AVERROR_INVALIDDATA;
3069 if ((err = av_reallocp_array(&c->trex_data, c->trex_count + 1,
3070 sizeof(*c->trex_data))) < 0) {
3075 c->fc->duration = AV_NOPTS_VALUE; // the duration from mvhd is not representing the whole file when fragments are used.
3077 trex = &c->trex_data[c->trex_count++];
3078 avio_r8(pb); /* version */
3079 avio_rb24(pb); /* flags */
3080 trex->track_id = avio_rb32(pb);
3081 trex->stsd_id = avio_rb32(pb);
3082 trex->duration = avio_rb32(pb);
3083 trex->size = avio_rb32(pb);
3084 trex->flags = avio_rb32(pb);
3088 static int mov_read_tfdt(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3090 MOVFragment *frag = &c->fragment;
3091 AVStream *st = NULL;
3092 MOVStreamContext *sc;
3095 for (i = 0; i < c->fc->nb_streams; i++) {
3096 if (c->fc->streams[i]->id == frag->track_id) {
3097 st = c->fc->streams[i];
3102 av_log(c->fc, AV_LOG_ERROR, "could not find corresponding track id %d\n", frag->track_id);
3103 return AVERROR_INVALIDDATA;
3106 if (sc->pseudo_stream_id + 1 != frag->stsd_id)
3108 version = avio_r8(pb);
3109 avio_rb24(pb); /* flags */
3111 sc->track_end = avio_rb64(pb);
3113 sc->track_end = avio_rb32(pb);
3118 static int mov_read_trun(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3120 MOVFragment *frag = &c->fragment;
3121 AVStream *st = NULL;
3122 MOVStreamContext *sc;
3126 int data_offset = 0;
3127 unsigned entries, first_sample_flags = frag->flags;
3128 int flags, distance, i, found_keyframe = 0, err;
3130 for (i = 0; i < c->fc->nb_streams; i++) {
3131 if (c->fc->streams[i]->id == frag->track_id) {
3132 st = c->fc->streams[i];
3137 av_log(c->fc, AV_LOG_ERROR, "could not find corresponding track id %d\n", frag->track_id);
3138 return AVERROR_INVALIDDATA;
3141 if (sc->pseudo_stream_id+1 != frag->stsd_id && sc->pseudo_stream_id != -1)
3143 avio_r8(pb); /* version */
3144 flags = avio_rb24(pb);
3145 entries = avio_rb32(pb);
3146 av_log(c->fc, AV_LOG_TRACE, "flags 0x%x entries %d\n", flags, entries);
3148 /* Always assume the presence of composition time offsets.
3149 * Without this assumption, for instance, we cannot deal with a track in fragmented movies that meet the following.
3150 * 1) in the initial movie, there are no samples.
3151 * 2) in the first movie fragment, there is only one sample without composition time offset.
3152 * 3) in the subsequent movie fragments, there are samples with composition time offset. */
3153 if (!sc->ctts_count && sc->sample_count)
3155 /* Complement ctts table if moov atom doesn't have ctts atom. */
3156 ctts_data = av_realloc(NULL, sizeof(*sc->ctts_data));
3158 return AVERROR(ENOMEM);
3159 sc->ctts_data = ctts_data;
3160 sc->ctts_data[sc->ctts_count].count = sc->sample_count;
3161 sc->ctts_data[sc->ctts_count].duration = 0;
3164 if ((uint64_t)entries+sc->ctts_count >= UINT_MAX/sizeof(*sc->ctts_data))
3165 return AVERROR_INVALIDDATA;
3166 if ((err = av_reallocp_array(&sc->ctts_data, entries + sc->ctts_count,
3167 sizeof(*sc->ctts_data))) < 0) {
3171 if (flags & MOV_TRUN_DATA_OFFSET) data_offset = avio_rb32(pb);
3172 if (flags & MOV_TRUN_FIRST_SAMPLE_FLAGS) first_sample_flags = avio_rb32(pb);
3173 dts = sc->track_end - sc->time_offset;
3174 offset = frag->base_data_offset + data_offset;
3176 av_log(c->fc, AV_LOG_TRACE, "first sample flags 0x%x\n", first_sample_flags);
3177 for (i = 0; i < entries && !pb->eof_reached; i++) {
3178 unsigned sample_size = frag->size;
3179 int sample_flags = i ? frag->flags : first_sample_flags;
3180 unsigned sample_duration = frag->duration;
3183 if (flags & MOV_TRUN_SAMPLE_DURATION) sample_duration = avio_rb32(pb);
3184 if (flags & MOV_TRUN_SAMPLE_SIZE) sample_size = avio_rb32(pb);
3185 if (flags & MOV_TRUN_SAMPLE_FLAGS) sample_flags = avio_rb32(pb);
3186 sc->ctts_data[sc->ctts_count].count = 1;
3187 sc->ctts_data[sc->ctts_count].duration = (flags & MOV_TRUN_SAMPLE_CTS) ?
3189 mov_update_dts_shift(sc, sc->ctts_data[sc->ctts_count].duration);
3190 if (frag->time != AV_NOPTS_VALUE) {
3191 if (c->use_mfra_for == FF_MOV_FLAG_MFRA_PTS) {
3192 int64_t pts = frag->time;
3193 av_log(c->fc, AV_LOG_DEBUG, "found frag time %"PRId64
3194 " sc->dts_shift %d ctts.duration %d"
3195 " sc->time_offset %"PRId64" flags & MOV_TRUN_SAMPLE_CTS %d\n", pts,
3196 sc->dts_shift, sc->ctts_data[sc->ctts_count].duration,
3197 sc->time_offset, flags & MOV_TRUN_SAMPLE_CTS);
3198 dts = pts - sc->dts_shift;
3199 if (flags & MOV_TRUN_SAMPLE_CTS) {
3200 dts -= sc->ctts_data[sc->ctts_count].duration;
3202 dts -= sc->time_offset;
3204 av_log(c->fc, AV_LOG_DEBUG, "calculated into dts %"PRId64"\n", dts);
3207 av_log(c->fc, AV_LOG_DEBUG, "found frag time %"PRId64
3208 ", using it for dts\n", dts);
3210 frag->time = AV_NOPTS_VALUE;
3213 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
3215 else if (!found_keyframe)
3216 keyframe = found_keyframe =
3217 !(sample_flags & (MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC |
3218 MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES));
3221 err = av_add_index_entry(st, offset, dts, sample_size, distance,
3222 keyframe ? AVINDEX_KEYFRAME : 0);
3224 av_log(c->fc, AV_LOG_ERROR, "Failed to add index entry\n");
3226 av_log(c->fc, AV_LOG_TRACE, "AVIndex stream %d, sample %d, offset %"PRIx64", dts %"PRId64", "
3227 "size %d, distance %d, keyframe %d\n", st->index, sc->sample_count+i,
3228 offset, dts, sample_size, distance, keyframe);
3230 dts += sample_duration;
3231 offset += sample_size;
3232 sc->data_size += sample_size;
3233 sc->duration_for_fps += sample_duration;
3234 sc->nb_frames_for_fps ++;
3237 if (pb->eof_reached)
3240 frag->implicit_offset = offset;
3241 st->duration = sc->track_end = dts + sc->time_offset;
3245 /* this atom should be null (from specs), but some buggy files put the 'moov' atom inside it... */
3246 /* like the files created with Adobe Premiere 5.0, for samples see */
3247 /* http://graphics.tudelft.nl/~wouter/publications/soundtests/ */
3248 static int mov_read_wide(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3253 return 0; /* continue */
3254 if (avio_rb32(pb) != 0) { /* 0 sized mdat atom... use the 'wide' atom size */
3255 avio_skip(pb, atom.size - 4);
3258 atom.type = avio_rl32(pb);
3260 if (atom.type != MKTAG('m','d','a','t')) {
3261 avio_skip(pb, atom.size);
3264 err = mov_read_mdat(c, pb, atom);
3268 static int mov_read_cmov(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3273 uint8_t *moov_data; /* uncompressed data */
3274 long cmov_len, moov_len;
3277 avio_rb32(pb); /* dcom atom */
3278 if (avio_rl32(pb) != MKTAG('d','c','o','m'))
3279 return AVERROR_INVALIDDATA;
3280 if (avio_rl32(pb) != MKTAG('z','l','i','b')) {
3281 av_log(c->fc, AV_LOG_ERROR, "unknown compression for cmov atom !\n");
3282 return AVERROR_INVALIDDATA;
3284 avio_rb32(pb); /* cmvd atom */
3285 if (avio_rl32(pb) != MKTAG('c','m','v','d'))
3286 return AVERROR_INVALIDDATA;
3287 moov_len = avio_rb32(pb); /* uncompressed size */
3288 cmov_len = atom.size - 6 * 4;
3290 cmov_data = av_malloc(cmov_len);
3292 return AVERROR(ENOMEM);
3293 moov_data = av_malloc(moov_len);
3296 return AVERROR(ENOMEM);
3298 avio_read(pb, cmov_data, cmov_len);
3299 if (uncompress (moov_data, (uLongf *) &moov_len, (const Bytef *)cmov_data, cmov_len) != Z_OK)
3300 goto free_and_return;
3301 if (ffio_init_context(&ctx, moov_data, moov_len, 0, NULL, NULL, NULL, NULL) != 0)
3302 goto free_and_return;
3303 atom.type = MKTAG('m','o','o','v');
3304 atom.size = moov_len;
3305 ret = mov_read_default(c, &ctx, atom);
3311 av_log(c->fc, AV_LOG_ERROR, "this file requires zlib support compiled in\n");
3312 return AVERROR(ENOSYS);
3316 /* edit list atom */
3317 static int mov_read_elst(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3319 MOVStreamContext *sc;
3320 int i, edit_count, version;
3322 if (c->fc->nb_streams < 1 || c->ignore_editlist)
3324 sc = c->fc->streams[c->fc->nb_streams-1]->priv_data;
3326 version = avio_r8(pb); /* version */
3327 avio_rb24(pb); /* flags */
3328 edit_count = avio_rb32(pb); /* entries */
3333 av_log(c->fc, AV_LOG_WARNING, "Duplicated ELST atom\n");
3334 av_free(sc->elst_data);
3336 sc->elst_data = av_malloc_array(edit_count, sizeof(*sc->elst_data));
3338 return AVERROR(ENOMEM);
3340 av_log(c->fc, AV_LOG_TRACE, "track[%i].edit_count = %i\n", c->fc->nb_streams-1, edit_count);
3341 for (i = 0; i < edit_count && !pb->eof_reached; i++) {
3342 MOVElst *e = &sc->elst_data[i];
3345 e->duration = avio_rb64(pb);
3346 e->time = avio_rb64(pb);
3348 e->duration = avio_rb32(pb); /* segment duration */
3349 e->time = (int32_t)avio_rb32(pb); /* media time */
3351 e->rate = avio_rb32(pb) / 65536.0;
3352 av_log(c->fc, AV_LOG_TRACE, "duration=%"PRId64" time=%"PRId64" rate=%f\n",
3353 e->duration, e->time, e->rate);
3360 static int mov_read_tmcd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3362 MOVStreamContext *sc;
3364 if (c->fc->nb_streams < 1)
3365 return AVERROR_INVALIDDATA;
3366 sc = c->fc->streams[c->fc->nb_streams - 1]->priv_data;
3367 sc->timecode_track = avio_rb32(pb);
3371 static int mov_read_uuid(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3375 static const uint8_t uuid_isml_manifest[] = {
3376 0xa5, 0xd4, 0x0b, 0x30, 0xe8, 0x14, 0x11, 0xdd,
3377 0xba, 0x2f, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66
3380 if (atom.size < sizeof(uuid) || atom.size == INT64_MAX)
3381 return AVERROR_INVALIDDATA;
3383 ret = avio_read(pb, uuid, sizeof(uuid));
3386 } else if (ret != sizeof(uuid)) {
3387 return AVERROR_INVALIDDATA;
3389 if (!memcmp(uuid, uuid_isml_manifest, sizeof(uuid))) {
3390 uint8_t *buffer, *ptr;
3392 size_t len = atom.size - sizeof(uuid);
3395 return AVERROR_INVALIDDATA;
3397 ret = avio_skip(pb, 4); // zeroes
3400 buffer = av_mallocz(len + 1);
3402 return AVERROR(ENOMEM);
3404 ret = avio_read(pb, buffer, len);
3408 } else if (ret != len) {
3410 return AVERROR_INVALIDDATA;
3414 while ((ptr = av_stristr(ptr, "systemBitrate=\""))) {
3415 ptr += sizeof("systemBitrate=\"") - 1;
3416 c->bitrates_count++;
3417 c->bitrates = av_realloc_f(c->bitrates, c->bitrates_count, sizeof(*c->bitrates));
3419 c->bitrates_count = 0;
3421 return AVERROR(ENOMEM);
3424 ret = strtol(ptr, &endptr, 10);
3425 if (ret < 0 || errno || *endptr != '"') {
3426 c->bitrates[c->bitrates_count - 1] = 0;
3428 c->bitrates[c->bitrates_count - 1] = ret;
3437 static int mov_read_free(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3440 uint8_t content[16];
3445 ret = avio_read(pb, content, FFMIN(sizeof(content), atom.size));
3451 && !memcmp(content, "Anevia\x1A\x1A", 8)
3452 && c->use_mfra_for == FF_MOV_FLAG_MFRA_AUTO) {
3453 c->use_mfra_for = FF_MOV_FLAG_MFRA_PTS;
3459 static const MOVParseTableEntry mov_default_parse_table[] = {
3460 { MKTAG('A','C','L','R'), mov_read_aclr },
3461 { MKTAG('A','P','R','G'), mov_read_avid },
3462 { MKTAG('A','A','L','P'), mov_read_avid },
3463 { MKTAG('A','R','E','S'), mov_read_ares },
3464 { MKTAG('a','v','s','s'), mov_read_avss },
3465 { MKTAG('c','h','p','l'), mov_read_chpl },
3466 { MKTAG('c','o','6','4'), mov_read_stco },
3467 { MKTAG('c','o','l','r'), mov_read_colr },
3468 { MKTAG('c','t','t','s'), mov_read_ctts }, /* composition time to sample */
3469 { MKTAG('d','i','n','f'), mov_read_default },
3470 { MKTAG('D','p','x','E'), mov_read_dpxe },
3471 { MKTAG('d','r','e','f'), mov_read_dref },
3472 { MKTAG('e','d','t','s'), mov_read_default },
3473 { MKTAG('e','l','s','t'), mov_read_elst },
3474 { MKTAG('e','n','d','a'), mov_read_enda },
3475 { MKTAG('f','i','e','l'), mov_read_fiel },
3476 { MKTAG('f','t','y','p'), mov_read_ftyp },
3477 { MKTAG('g','l','b','l'), mov_read_glbl },
3478 { MKTAG('h','d','l','r'), mov_read_hdlr },
3479 { MKTAG('i','l','s','t'), mov_read_ilst },
3480 { MKTAG('j','p','2','h'), mov_read_jp2h },
3481 { MKTAG('m','d','a','t'), mov_read_mdat },
3482 { MKTAG('m','d','h','d'), mov_read_mdhd },
3483 { MKTAG('m','d','i','a'), mov_read_default },
3484 { MKTAG('m','e','t','a'), mov_read_meta },
3485 { MKTAG('m','i','n','f'), mov_read_default },
3486 { MKTAG('m','o','o','f'), mov_read_moof },
3487 { MKTAG('m','o','o','v'), mov_read_moov },
3488 { MKTAG('m','v','e','x'), mov_read_default },
3489 { MKTAG('m','v','h','d'), mov_read_mvhd },
3490 { MKTAG('S','M','I',' '), mov_read_svq3 },
3491 { MKTAG('a','l','a','c'), mov_read_alac }, /* alac specific atom */
3492 { MKTAG('a','v','c','C'), mov_read_glbl },
3493 { MKTAG('p','a','s','p'), mov_read_pasp },
3494 { MKTAG('s','t','b','l'), mov_read_default },
3495 { MKTAG('s','t','c','o'), mov_read_stco },
3496 { MKTAG('s','t','p','s'), mov_read_stps },
3497 { MKTAG('s','t','r','f'), mov_read_strf },
3498 { MKTAG('s','t','s','c'), mov_read_stsc },
3499 { MKTAG('s','t','s','d'), mov_read_stsd }, /* sample description */
3500 { MKTAG('s','t','s','s'), mov_read_stss }, /* sync sample */
3501 { MKTAG('s','t','s','z'), mov_read_stsz }, /* sample size */
3502 { MKTAG('s','t','t','s'), mov_read_stts },
3503 { MKTAG('s','t','z','2'), mov_read_stsz }, /* compact sample size */
3504 { MKTAG('t','k','h','d'), mov_read_tkhd }, /* track header */
3505 { MKTAG('t','f','d','t'), mov_read_tfdt },
3506 { MKTAG('t','f','h','d'), mov_read_tfhd }, /* track fragment header */
3507 { MKTAG('t','r','a','k'), mov_read_trak },
3508 { MKTAG('t','r','a','f'), mov_read_default },
3509 { MKTAG('t','r','e','f'), mov_read_default },
3510 { MKTAG('t','m','c','d'), mov_read_tmcd },
3511 { MKTAG('c','h','a','p'), mov_read_chap },
3512 { MKTAG('t','r','e','x'), mov_read_trex },
3513 { MKTAG('t','r','u','n'), mov_read_trun },
3514 { MKTAG('u','d','t','a'), mov_read_default },
3515 { MKTAG('w','a','v','e'), mov_read_wave },
3516 { MKTAG('e','s','d','s'), mov_read_esds },
3517 { MKTAG('d','a','c','3'), mov_read_dac3 }, /* AC-3 info */
3518 { MKTAG('d','e','c','3'), mov_read_dec3 }, /* EAC-3 info */
3519 { MKTAG('w','i','d','e'), mov_read_wide }, /* place holder */
3520 { MKTAG('w','f','e','x'), mov_read_wfex },
3521 { MKTAG('c','m','o','v'), mov_read_cmov },
3522 { MKTAG('c','h','a','n'), mov_read_chan }, /* channel layout */
3523 { MKTAG('d','v','c','1'), mov_read_dvc1 },
3524 { MKTAG('s','b','g','p'), mov_read_sbgp },
3525 { MKTAG('h','v','c','C'), mov_read_glbl },
3526 { MKTAG('u','u','i','d'), mov_read_uuid },
3527 { MKTAG('C','i','n', 0x8e), mov_read_targa_y216 },
3528 { MKTAG('f','r','e','e'), mov_read_free },
3529 { MKTAG('-','-','-','-'), mov_read_custom },
3533 static int mov_read_default(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3535 int64_t total_size = 0;
3539 if (c->atom_depth > 10) {
3540 av_log(c->fc, AV_LOG_ERROR, "Atoms too deeply nested\n");
3541 return AVERROR_INVALIDDATA;
3546 atom.size = INT64_MAX;
3547 while (total_size + 8 <= atom.size && !avio_feof(pb)) {
3548 int (*parse)(MOVContext*, AVIOContext*, MOVAtom) = NULL;
3551 if (atom.size >= 8) {
3552 a.size = avio_rb32(pb);
3553 a.type = avio_rl32(pb);
3554 if (a.type == MKTAG('f','r','e','e') &&
3558 uint32_t *type = (uint32_t *)buf + 1;
3559 avio_read(pb, buf, 8);
3560 avio_seek(pb, -8, SEEK_CUR);
3561 if (*type == MKTAG('m','v','h','d') ||
3562 *type == MKTAG('c','m','o','v')) {
3563 av_log(c->fc, AV_LOG_ERROR, "Detected moov in a free atom.\n");
3564 a.type = MKTAG('m','o','o','v');
3567 if (atom.type != MKTAG('r','o','o','t') &&
3568 atom.type != MKTAG('m','o','o','v'))
3570 if (a.type == MKTAG('t','r','a','k') || a.type == MKTAG('m','d','a','t'))
3572 av_log(c->fc, AV_LOG_ERROR, "Broken file, trak/mdat not at top-level\n");
3579 if (a.size == 1 && total_size + 8 <= atom.size) { /* 64 bit extended size */
3580 a.size = avio_rb64(pb) - 8;
3584 av_log(c->fc, AV_LOG_TRACE, "type: %08x '%.4s' parent:'%.4s' sz: %"PRId64" %"PRId64" %"PRId64"\n",
3585 a.type, (char*)&a.type, (char*)&atom.type, a.size, total_size, atom.size);
3587 a.size = atom.size - total_size + 8;
3592 a.size = FFMIN(a.size, atom.size - total_size);
3594 for (i = 0; mov_default_parse_table[i].type; i++)
3595 if (mov_default_parse_table[i].type == a.type) {
3596 parse = mov_default_parse_table[i].parse;
3600 // container is user data
3601 if (!parse && (atom.type == MKTAG('u','d','t','a') ||
3602 atom.type == MKTAG('i','l','s','t')))
3603 parse = mov_read_udta_string;
3605 if (!parse) { /* skip leaf atoms data */
3606 avio_skip(pb, a.size);
3608 int64_t start_pos = avio_tell(pb);
3610 int err = parse(c, pb, a);
3615 if (c->found_moov && c->found_mdat &&
3616 ((!pb->seekable || c->fc->flags & AVFMT_FLAG_IGNIDX) ||
3617 start_pos + a.size == avio_size(pb))) {
3618 if (!pb->seekable || c->fc->flags & AVFMT_FLAG_IGNIDX)
3619 c->next_root_atom = start_pos + a.size;
3623 left = a.size - avio_tell(pb) + start_pos;
3624 if (left > 0) /* skip garbage at atom end */
3625 avio_skip(pb, left);
3626 else if (left < 0) {
3627 av_log(c->fc, AV_LOG_WARNING,
3628 "overread end of atom '%.4s' by %"PRId64" bytes\n",
3629 (char*)&a.type, -left);
3630 avio_seek(pb, left, SEEK_CUR);
3634 total_size += a.size;
3637 if (total_size < atom.size && atom.size < 0x7ffff)
3638 avio_skip(pb, atom.size - total_size);
3644 static int mov_probe(AVProbeData *p)
3649 int moov_offset = -1;
3651 /* check file header */
3654 /* ignore invalid offset */
3655 if ((offset + 8) > (unsigned int)p->buf_size)
3657 tag = AV_RL32(p->buf + offset + 4);
3659 /* check for obvious tags */
3660 case MKTAG('m','o','o','v'):
3661 moov_offset = offset + 4;
3662 case MKTAG('m','d','a','t'):
3663 case MKTAG('p','n','o','t'): /* detect movs with preview pics like ew.mov and april.mov */
3664 case MKTAG('u','d','t','a'): /* Packet Video PVAuthor adds this and a lot of more junk */
3665 case MKTAG('f','t','y','p'):
3666 if (AV_RB32(p->buf+offset) < 8 &&
3667 (AV_RB32(p->buf+offset) != 1 ||
3668 offset + 12 > (unsigned int)p->buf_size ||
3669 AV_RB64(p->buf+offset + 8) == 0)) {
3670 score = FFMAX(score, AVPROBE_SCORE_EXTENSION);
3671 } else if (tag == MKTAG('f','t','y','p') &&
3672 ( AV_RL32(p->buf + offset + 8) == MKTAG('j','p','2',' ')
3673 || AV_RL32(p->buf + offset + 8) == MKTAG('j','p','x',' ')
3675 score = FFMAX(score, 5);
3677 score = AVPROBE_SCORE_MAX;
3679 offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
3681 /* those are more common words, so rate then a bit less */
3682 case MKTAG('e','d','i','w'): /* xdcam files have reverted first tags */
3683 case MKTAG('w','i','d','e'):
3684 case MKTAG('f','r','e','e'):
3685 case MKTAG('j','u','n','k'):
3686 case MKTAG('p','i','c','t'):
3687 score = FFMAX(score, AVPROBE_SCORE_MAX - 5);
3688 offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
3690 case MKTAG(0x82,0x82,0x7f,0x7d):
3691 case MKTAG('s','k','i','p'):
3692 case MKTAG('u','u','i','d'):
3693 case MKTAG('p','r','f','l'):
3694 /* if we only find those cause probedata is too small at least rate them */
3695 score = FFMAX(score, AVPROBE_SCORE_EXTENSION);
3696 offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
3699 offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
3702 if(score > AVPROBE_SCORE_MAX - 50 && moov_offset != -1) {
3703 /* moov atom in the header - we should make sure that this is not a
3704 * MOV-packed MPEG-PS */
3705 offset = moov_offset;
3707 while(offset < (p->buf_size - 16)){ /* Sufficient space */
3708 /* We found an actual hdlr atom */
3709 if(AV_RL32(p->buf + offset ) == MKTAG('h','d','l','r') &&
3710 AV_RL32(p->buf + offset + 8) == MKTAG('m','h','l','r') &&
3711 AV_RL32(p->buf + offset + 12) == MKTAG('M','P','E','G')){
3712 av_log(NULL, AV_LOG_WARNING, "Found media data tag MPEG indicating this is a MOV-packed MPEG-PS.\n");
3713 /* We found a media handler reference atom describing an
3714 * MPEG-PS-in-MOV, return a
3715 * low score to force expanding the probe window until
3716 * mpegps_probe finds what it needs */
3727 // must be done after parsing all trak because there's no order requirement
3728 static void mov_read_chapters(AVFormatContext *s)
3730 MOVContext *mov = s->priv_data;
3731 AVStream *st = NULL;
3732 MOVStreamContext *sc;
3736 for (i = 0; i < s->nb_streams; i++)
3737 if (s->streams[i]->id == mov->chapter_track) {
3742 av_log(s, AV_LOG_ERROR, "Referenced QT chapter track not found\n");
3746 st->discard = AVDISCARD_ALL;
3748 cur_pos = avio_tell(sc->pb);
3750 for (i = 0; i < st->nb_index_entries; i++) {
3751 AVIndexEntry *sample = &st->index_entries[i];
3752 int64_t end = i+1 < st->nb_index_entries ? st->index_entries[i+1].timestamp : st->duration;
3757 if (end < sample->timestamp) {
3758 av_log(s, AV_LOG_WARNING, "ignoring stream duration which is shorter than chapters\n");
3759 end = AV_NOPTS_VALUE;
3762 if (avio_seek(sc->pb, sample->pos, SEEK_SET) != sample->pos) {
3763 av_log(s, AV_LOG_ERROR, "Chapter %d not found in file\n", i);
3767 // the first two bytes are the length of the title
3768 len = avio_rb16(sc->pb);
3769 if (len > sample->size-2)
3771 title_len = 2*len + 1;
3772 if (!(title = av_mallocz(title_len)))
3775 // The samples could theoretically be in any encoding if there's an encd
3776 // atom following, but in practice are only utf-8 or utf-16, distinguished
3777 // instead by the presence of a BOM
3781 ch = avio_rb16(sc->pb);
3783 avio_get_str16be(sc->pb, len, title, title_len);
3784 else if (ch == 0xfffe)
3785 avio_get_str16le(sc->pb, len, title, title_len);
3788 if (len == 1 || len == 2)
3791 avio_get_str(sc->pb, INT_MAX, title + 2, len - 1);
3795 avpriv_new_chapter(s, i, st->time_base, sample->timestamp, end, title);
3799 avio_seek(sc->pb, cur_pos, SEEK_SET);
3802 static int parse_timecode_in_framenum_format(AVFormatContext *s, AVStream *st,
3803 uint32_t value, int flags)
3806 char buf[AV_TIMECODE_STR_SIZE];
3807 AVRational rate = {st->codec->time_base.den,
3808 st->codec->time_base.num};
3809 int ret = av_timecode_init(&tc, rate, flags, 0, s);
3812 av_dict_set(&st->metadata, "timecode",
3813 av_timecode_make_string(&tc, buf, value), 0);
3817 static int mov_read_timecode_track(AVFormatContext *s, AVStream *st)
3819 MOVStreamContext *sc = st->priv_data;
3821 int64_t cur_pos = avio_tell(sc->pb);
3824 if (!st->nb_index_entries)
3827 avio_seek(sc->pb, st->index_entries->pos, SEEK_SET);
3828 value = avio_rb32(s->pb);
3830 if (sc->tmcd_flags & 0x0001) flags |= AV_TIMECODE_FLAG_DROPFRAME;
3831 if (sc->tmcd_flags & 0x0002) flags |= AV_TIMECODE_FLAG_24HOURSMAX;
3832 if (sc->tmcd_flags & 0x0004) flags |= AV_TIMECODE_FLAG_ALLOWNEGATIVE;
3834 /* Assume Counter flag is set to 1 in tmcd track (even though it is likely
3835 * not the case) and thus assume "frame number format" instead of QT one.
3836 * No sample with tmcd track can be found with a QT timecode at the moment,
3837 * despite what the tmcd track "suggests" (Counter flag set to 0 means QT
3839 parse_timecode_in_framenum_format(s, st, value, flags);
3841 avio_seek(sc->pb, cur_pos, SEEK_SET);
3845 static int mov_read_close(AVFormatContext *s)
3847 MOVContext *mov = s->priv_data;
3850 for (i = 0; i < s->nb_streams; i++) {
3851 AVStream *st = s->streams[i];
3852 MOVStreamContext *sc = st->priv_data;
3854 av_freep(&sc->ctts_data);
3855 for (j = 0; j < sc->drefs_count; j++) {
3856 av_freep(&sc->drefs[j].path);
3857 av_freep(&sc->drefs[j].dir);
3859 av_freep(&sc->drefs);
3861 sc->drefs_count = 0;
3863 if (!sc->pb_is_copied)
3864 avio_closep(&sc->pb);
3867 av_freep(&sc->chunk_offsets);
3868 av_freep(&sc->stsc_data);
3869 av_freep(&sc->sample_sizes);
3870 av_freep(&sc->keyframes);
3871 av_freep(&sc->stts_data);
3872 av_freep(&sc->stps_data);
3873 av_freep(&sc->elst_data);
3874 av_freep(&sc->rap_group);
3875 av_freep(&sc->display_matrix);
3878 if (mov->dv_demux) {
3879 avformat_free_context(mov->dv_fctx);
3880 mov->dv_fctx = NULL;
3883 av_freep(&mov->trex_data);
3884 av_freep(&mov->bitrates);
3886 for (i = 0; i < mov->fragment_index_count; i++) {
3887 MOVFragmentIndex* index = mov->fragment_index_data[i];
3888 av_freep(&index->items);
3889 av_freep(&mov->fragment_index_data[i]);
3891 av_freep(&mov->fragment_index_data);
3896 static int tmcd_is_referenced(AVFormatContext *s, int tmcd_id)
3900 for (i = 0; i < s->nb_streams; i++) {
3901 AVStream *st = s->streams[i];
3902 MOVStreamContext *sc = st->priv_data;
3904 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
3905 sc->timecode_track == tmcd_id)
3911 /* look for a tmcd track not referenced by any video track, and export it globally */
3912 static void export_orphan_timecode(AVFormatContext *s)
3916 for (i = 0; i < s->nb_streams; i++) {
3917 AVStream *st = s->streams[i];
3919 if (st->codec->codec_tag == MKTAG('t','m','c','d') &&
3920 !tmcd_is_referenced(s, i + 1)) {
3921 AVDictionaryEntry *tcr = av_dict_get(st->metadata, "timecode", NULL, 0);
3923 av_dict_set(&s->metadata, "timecode", tcr->value, 0);
3930 static int read_tfra(MOVContext *mov, AVIOContext *f)
3932 MOVFragmentIndex* index = NULL;
3933 int version, fieldlength, i, j;
3934 int64_t pos = avio_tell(f);
3935 uint32_t size = avio_rb32(f);
3938 if (avio_rb32(f) != MKBETAG('t', 'f', 'r', 'a')) {
3941 av_log(mov->fc, AV_LOG_VERBOSE, "found tfra\n");
3942 index = av_mallocz(sizeof(MOVFragmentIndex));
3944 return AVERROR(ENOMEM);
3947 tmp = av_realloc_array(mov->fragment_index_data,
3948 mov->fragment_index_count + 1,
3949 sizeof(MOVFragmentIndex*));
3952 return AVERROR(ENOMEM);
3954 mov->fragment_index_data = tmp;
3955 mov->fragment_index_data[mov->fragment_index_count++] = index;
3957 version = avio_r8(f);
3959 index->track_id = avio_rb32(f);
3960 fieldlength = avio_rb32(f);
3961 index->item_count = avio_rb32(f);
3962 index->items = av_mallocz_array(
3963 index->item_count, sizeof(MOVFragmentIndexItem));
3964 if (!index->items) {
3965 index->item_count = 0;
3966 return AVERROR(ENOMEM);
3968 for (i = 0; i < index->item_count; i++) {
3969 int64_t time, offset;
3971 time = avio_rb64(f);
3972 offset = avio_rb64(f);
3974 time = avio_rb32(f);
3975 offset = avio_rb32(f);
3977 index->items[i].time = time;
3978 index->items[i].moof_offset = offset;
3979 for (j = 0; j < ((fieldlength >> 4) & 3) + 1; j++)
3981 for (j = 0; j < ((fieldlength >> 2) & 3) + 1; j++)
3983 for (j = 0; j < ((fieldlength >> 0) & 3) + 1; j++)
3987 avio_seek(f, pos + size, SEEK_SET);
3991 static int mov_read_mfra(MOVContext *c, AVIOContext *f)
3993 int64_t stream_size = avio_size(f);
3994 int64_t original_pos = avio_tell(f);
3998 if ((seek_ret = avio_seek(f, stream_size - 4, SEEK_SET)) < 0) {
4002 mfra_size = avio_rb32(f);
4003 if (mfra_size < 0 || mfra_size > stream_size) {
4004 av_log(c->fc, AV_LOG_DEBUG, "doesn't look like mfra (unreasonable size)\n");
4007 if ((seek_ret = avio_seek(f, -mfra_size, SEEK_CUR)) < 0) {
4011 if (avio_rb32(f) != mfra_size) {
4012 av_log(c->fc, AV_LOG_DEBUG, "doesn't look like mfra (size mismatch)\n");
4015 if (avio_rb32(f) != MKBETAG('m', 'f', 'r', 'a')) {
4016 av_log(c->fc, AV_LOG_DEBUG, "doesn't look like mfra (tag mismatch)\n");
4019 av_log(c->fc, AV_LOG_VERBOSE, "stream has mfra\n");
4021 ret = read_tfra(c, f);
4027 seek_ret = avio_seek(f, original_pos, SEEK_SET);
4029 av_log(c->fc, AV_LOG_ERROR,
4030 "failed to seek back after looking for mfra\n");
4036 static int mov_read_header(AVFormatContext *s)
4038 MOVContext *mov = s->priv_data;
4039 AVIOContext *pb = s->pb;
4041 MOVAtom atom = { AV_RL32("root") };
4045 /* .mov and .mp4 aren't streamable anyway (only progressive download if moov is before mdat) */
4047 atom.size = avio_size(pb);
4049 atom.size = INT64_MAX;
4051 /* check MOV header */
4053 if (mov->moov_retry)
4054 avio_seek(pb, 0, SEEK_SET);
4055 if ((err = mov_read_default(mov, pb, atom)) < 0) {
4056 av_log(s, AV_LOG_ERROR, "error reading header\n");
4060 } while (pb->seekable && !mov->found_moov && !mov->moov_retry++);
4061 if (!mov->found_moov) {
4062 av_log(s, AV_LOG_ERROR, "moov atom not found\n");
4064 return AVERROR_INVALIDDATA;
4066 av_log(mov->fc, AV_LOG_TRACE, "on_parse_exit_offset=%"PRId64"\n", avio_tell(pb));
4069 if (mov->chapter_track > 0)
4070 mov_read_chapters(s);
4071 for (i = 0; i < s->nb_streams; i++)
4072 if (s->streams[i]->codec->codec_tag == AV_RL32("tmcd"))
4073 mov_read_timecode_track(s, s->streams[i]);
4076 /* copy timecode metadata from tmcd tracks to the related video streams */
4077 for (i = 0; i < s->nb_streams; i++) {
4078 AVStream *st = s->streams[i];
4079 MOVStreamContext *sc = st->priv_data;
4080 if (sc->timecode_track > 0) {
4081 AVDictionaryEntry *tcr;
4082 int tmcd_st_id = -1;
4084 for (j = 0; j < s->nb_streams; j++)
4085 if (s->streams[j]->id == sc->timecode_track)
4088 if (tmcd_st_id < 0 || tmcd_st_id == i)
4090 tcr = av_dict_get(s->streams[tmcd_st_id]->metadata, "timecode", NULL, 0);
4092 av_dict_set(&st->metadata, "timecode", tcr->value, 0);
4095 export_orphan_timecode(s);
4097 for (i = 0; i < s->nb_streams; i++) {
4098 AVStream *st = s->streams[i];
4099 MOVStreamContext *sc = st->priv_data;
4100 fix_timescale(mov, sc);
4101 if(st->codec->codec_type == AVMEDIA_TYPE_AUDIO && st->codec->codec_id == AV_CODEC_ID_AAC) {
4102 st->skip_samples = sc->start_pad;
4104 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && sc->nb_frames_for_fps > 0 && sc->duration_for_fps > 0)
4105 av_reduce(&st->avg_frame_rate.num, &st->avg_frame_rate.den,
4106 sc->time_scale*(int64_t)sc->nb_frames_for_fps, sc->duration_for_fps, INT_MAX);
4107 if (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
4108 if (st->codec->width <= 0 || st->codec->height <= 0) {
4109 st->codec->width = sc->width;
4110 st->codec->height = sc->height;
4112 if (st->codec->codec_id == AV_CODEC_ID_DVD_SUBTITLE) {
4113 if ((err = mov_rewrite_dvd_sub_extradata(st)) < 0)
4119 if (mov->trex_data) {
4120 for (i = 0; i < s->nb_streams; i++) {
4121 AVStream *st = s->streams[i];
4122 MOVStreamContext *sc = st->priv_data;
4123 if (st->duration > 0)
4124 st->codec->bit_rate = sc->data_size * 8 * sc->time_scale / st->duration;
4128 if (mov->use_mfra_for > 0) {
4129 for (i = 0; i < s->nb_streams; i++) {
4130 AVStream *st = s->streams[i];
4131 MOVStreamContext *sc = st->priv_data;
4132 if (sc->duration_for_fps > 0) {
4133 st->codec->bit_rate = sc->data_size * 8 * sc->time_scale /
4134 sc->duration_for_fps;
4139 for (i = 0; i < mov->bitrates_count && i < s->nb_streams; i++) {
4140 if (mov->bitrates[i]) {
4141 s->streams[i]->codec->bit_rate = mov->bitrates[i];
4145 ff_rfps_calculate(s);
4147 for (i = 0; i < s->nb_streams; i++) {
4148 AVStream *st = s->streams[i];
4149 MOVStreamContext *sc = st->priv_data;
4151 switch (st->codec->codec_type) {
4152 case AVMEDIA_TYPE_AUDIO:
4153 err = ff_replaygain_export(st, s->metadata);
4159 case AVMEDIA_TYPE_VIDEO:
4160 if (sc->display_matrix) {
4161 AVPacketSideData *sd, *tmp;
4163 tmp = av_realloc_array(st->side_data,
4164 st->nb_side_data + 1, sizeof(*tmp));
4166 return AVERROR(ENOMEM);
4168 st->side_data = tmp;
4171 sd = &st->side_data[st->nb_side_data - 1];
4172 sd->type = AV_PKT_DATA_DISPLAYMATRIX;
4173 sd->size = sizeof(int32_t) * 9;
4174 sd->data = (uint8_t*)sc->display_matrix;
4175 sc->display_matrix = NULL;
4184 static AVIndexEntry *mov_find_next_sample(AVFormatContext *s, AVStream **st)
4186 AVIndexEntry *sample = NULL;
4187 int64_t best_dts = INT64_MAX;
4189 for (i = 0; i < s->nb_streams; i++) {
4190 AVStream *avst = s->streams[i];
4191 MOVStreamContext *msc = avst->priv_data;
4192 if (msc->pb && msc->current_sample < avst->nb_index_entries) {
4193 AVIndexEntry *current_sample = &avst->index_entries[msc->current_sample];
4194 int64_t dts = av_rescale(current_sample->timestamp, AV_TIME_BASE, msc->time_scale);
4195 av_log(s, AV_LOG_TRACE, "stream %d, sample %d, dts %"PRId64"\n", i, msc->current_sample, dts);
4196 if (!sample || (!s->pb->seekable && current_sample->pos < sample->pos) ||
4198 ((msc->pb != s->pb && dts < best_dts) || (msc->pb == s->pb &&
4199 ((FFABS(best_dts - dts) <= AV_TIME_BASE && current_sample->pos < sample->pos) ||
4200 (FFABS(best_dts - dts) > AV_TIME_BASE && dts < best_dts)))))) {
4201 sample = current_sample;
4210 static int mov_read_packet(AVFormatContext *s, AVPacket *pkt)
4212 MOVContext *mov = s->priv_data;
4213 MOVStreamContext *sc;
4214 AVIndexEntry *sample;
4215 AVStream *st = NULL;
4219 sample = mov_find_next_sample(s, &st);
4221 mov->found_mdat = 0;
4222 if (!mov->next_root_atom)
4224 avio_seek(s->pb, mov->next_root_atom, SEEK_SET);
4225 mov->next_root_atom = 0;
4226 if (mov_read_default(mov, s->pb, (MOVAtom){ AV_RL32("root"), INT64_MAX }) < 0 ||
4229 av_log(s, AV_LOG_TRACE, "read fragments, offset 0x%"PRIx64"\n", avio_tell(s->pb));
4233 /* must be done just before reading, to avoid infinite loop on sample */
4234 sc->current_sample++;
4236 if (mov->next_root_atom) {
4237 sample->pos = FFMIN(sample->pos, mov->next_root_atom);
4238 sample->size = FFMIN(sample->size, (mov->next_root_atom - sample->pos));
4241 if (st->discard != AVDISCARD_ALL) {
4242 if (avio_seek(sc->pb, sample->pos, SEEK_SET) != sample->pos) {
4243 av_log(mov->fc, AV_LOG_ERROR, "stream %d, offset 0x%"PRIx64": partial file\n",
4244 sc->ffindex, sample->pos);
4245 return AVERROR_INVALIDDATA;
4247 ret = av_get_packet(sc->pb, pkt, sample->size);
4250 if (sc->has_palette) {
4253 pal = av_packet_new_side_data(pkt, AV_PKT_DATA_PALETTE, AVPALETTE_SIZE);
4255 av_log(mov->fc, AV_LOG_ERROR, "Cannot append palette to packet\n");
4257 memcpy(pal, sc->palette, AVPALETTE_SIZE);
4258 sc->has_palette = 0;
4261 #if CONFIG_DV_DEMUXER
4262 if (mov->dv_demux && sc->dv_audio_container) {
4263 avpriv_dv_produce_packet(mov->dv_demux, pkt, pkt->data, pkt->size, pkt->pos);
4264 av_freep(&pkt->data);
4266 ret = avpriv_dv_get_packet(mov->dv_demux, pkt);
4273 pkt->stream_index = sc->ffindex;
4274 pkt->dts = sample->timestamp;
4275 if (sc->ctts_data && sc->ctts_index < sc->ctts_count) {
4276 pkt->pts = pkt->dts + sc->dts_shift + sc->ctts_data[sc->ctts_index].duration;
4277 /* update ctts context */
4279 if (sc->ctts_index < sc->ctts_count &&
4280 sc->ctts_data[sc->ctts_index].count == sc->ctts_sample) {
4282 sc->ctts_sample = 0;
4285 pkt->dts = AV_NOPTS_VALUE;
4287 int64_t next_dts = (sc->current_sample < st->nb_index_entries) ?
4288 st->index_entries[sc->current_sample].timestamp : st->duration;
4289 pkt->duration = next_dts - pkt->dts;
4290 pkt->pts = pkt->dts;
4292 if (st->discard == AVDISCARD_ALL)
4294 pkt->flags |= sample->flags & AVINDEX_KEYFRAME ? AV_PKT_FLAG_KEY : 0;
4295 pkt->pos = sample->pos;
4300 static int mov_seek_stream(AVFormatContext *s, AVStream *st, int64_t timestamp, int flags)
4302 MOVStreamContext *sc = st->priv_data;
4303 int sample, time_sample;
4306 sample = av_index_search_timestamp(st, timestamp, flags);
4307 av_log(s, AV_LOG_TRACE, "stream %d, timestamp %"PRId64", sample %d\n", st->index, timestamp, sample);
4308 if (sample < 0 && st->nb_index_entries && timestamp < st->index_entries[0].timestamp)
4310 if (sample < 0) /* not sure what to do */
4311 return AVERROR_INVALIDDATA;
4312 sc->current_sample = sample;
4313 av_log(s, AV_LOG_TRACE, "stream %d, found sample %d\n", st->index, sc->current_sample);
4314 /* adjust ctts index */
4315 if (sc->ctts_data) {
4317 for (i = 0; i < sc->ctts_count; i++) {
4318 int next = time_sample + sc->ctts_data[i].count;
4319 if (next > sc->current_sample) {
4321 sc->ctts_sample = sc->current_sample - time_sample;
4330 static int mov_read_seek(AVFormatContext *s, int stream_index, int64_t sample_time, int flags)
4332 MOVContext *mc = s->priv_data;
4337 if (stream_index >= s->nb_streams)
4338 return AVERROR_INVALIDDATA;
4340 st = s->streams[stream_index];
4341 sample = mov_seek_stream(s, st, sample_time, flags);
4345 if (mc->seek_individually) {
4346 /* adjust seek timestamp to found sample timestamp */
4347 int64_t seek_timestamp = st->index_entries[sample].timestamp;
4349 for (i = 0; i < s->nb_streams; i++) {
4351 MOVStreamContext *sc = s->streams[i]->priv_data;
4353 st->skip_samples = (sample_time <= 0) ? sc->start_pad : 0;
4355 if (stream_index == i)
4358 timestamp = av_rescale_q(seek_timestamp, s->streams[stream_index]->time_base, st->time_base);
4359 mov_seek_stream(s, st, timestamp, flags);
4362 for (i = 0; i < s->nb_streams; i++) {
4363 MOVStreamContext *sc;
4366 sc->current_sample = 0;
4369 MOVStreamContext *sc;
4370 AVIndexEntry *entry = mov_find_next_sample(s, &st);
4372 return AVERROR_INVALIDDATA;
4374 if (sc->ffindex == stream_index && sc->current_sample == sample)
4376 sc->current_sample++;
4382 #define OFFSET(x) offsetof(MOVContext, x)
4383 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM
4384 static const AVOption mov_options[] = {
4385 {"use_absolute_path",
4386 "allow using absolute path when opening alias, this is a possible security issue",
4387 OFFSET(use_absolute_path), FF_OPT_TYPE_INT, {.i64 = 0},
4389 {"seek_streams_individually",
4390 "Seek each stream individually to the to the closest point",
4391 OFFSET(seek_individually), AV_OPT_TYPE_INT, { .i64 = 1 },
4393 {"ignore_editlist", "", OFFSET(ignore_editlist), FF_OPT_TYPE_INT, {.i64 = 0},
4396 "use mfra for fragment timestamps",
4397 OFFSET(use_mfra_for), FF_OPT_TYPE_INT, {.i64 = FF_MOV_FLAG_MFRA_AUTO},
4398 -1, FF_MOV_FLAG_MFRA_PTS, FLAGS,
4400 {"auto", "auto", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_MFRA_AUTO}, 0, 0,
4401 FLAGS, "use_mfra_for" },
4402 {"dts", "dts", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_MFRA_DTS}, 0, 0,
4403 FLAGS, "use_mfra_for" },
4404 {"pts", "pts", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_MFRA_PTS}, 0, 0,
4405 FLAGS, "use_mfra_for" },
4406 { "export_all", "Export unrecognized metadata entries", OFFSET(export_all),
4407 AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, .flags = FLAGS },
4408 { "export_xmp", "Export full XMP metadata", OFFSET(export_xmp),
4409 AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, .flags = FLAGS },
4413 static const AVClass mov_class = {
4414 .class_name = "mov,mp4,m4a,3gp,3g2,mj2",
4415 .item_name = av_default_item_name,
4416 .option = mov_options,
4417 .version = LIBAVUTIL_VERSION_INT,
4420 AVInputFormat ff_mov_demuxer = {
4421 .name = "mov,mp4,m4a,3gp,3g2,mj2",
4422 .long_name = NULL_IF_CONFIG_SMALL("QuickTime / MOV"),
4423 .priv_class = &mov_class,
4424 .priv_data_size = sizeof(MOVContext),
4425 .extensions = "mov,mp4,m4a,3gp,3g2,mj2",
4426 .read_probe = mov_probe,
4427 .read_header = mov_read_header,
4428 .read_packet = mov_read_packet,
4429 .read_close = mov_read_close,
4430 .read_seek = mov_read_seek,
4431 .flags = AVFMT_NO_BYTE_SEEK,