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/display.h"
33 #include "libavutil/intreadwrite.h"
34 #include "libavutil/intfloat.h"
35 #include "libavutil/mathematics.h"
36 #include "libavutil/time_internal.h"
37 #include "libavutil/avstring.h"
38 #include "libavutil/dict.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"
62 /* those functions parse an atom */
63 /* links atom IDs to parse functions */
64 typedef struct MOVParseTableEntry {
66 int (*parse)(MOVContext *ctx, AVIOContext *pb, MOVAtom atom);
69 static int mov_read_default(MOVContext *c, AVIOContext *pb, MOVAtom atom);
70 static int mov_read_mfra(MOVContext *c, AVIOContext *f);
72 static int mov_metadata_track_or_disc_number(MOVContext *c, AVIOContext *pb,
73 unsigned len, const char *key)
77 short current, total = 0;
78 avio_rb16(pb); // unknown
79 current = avio_rb16(pb);
81 total = avio_rb16(pb);
83 snprintf(buf, sizeof(buf), "%d", current);
85 snprintf(buf, sizeof(buf), "%d/%d", current, total);
86 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
87 av_dict_set(&c->fc->metadata, key, buf, 0);
92 static int mov_metadata_int8_bypass_padding(MOVContext *c, AVIOContext *pb,
93 unsigned len, const char *key)
95 /* bypass padding bytes */
100 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
101 av_dict_set_int(&c->fc->metadata, key, avio_r8(pb), 0);
106 static int mov_metadata_int8_no_padding(MOVContext *c, AVIOContext *pb,
107 unsigned len, const char *key)
109 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
110 av_dict_set_int(&c->fc->metadata, key, avio_r8(pb), 0);
115 static int mov_metadata_gnre(MOVContext *c, AVIOContext *pb,
116 unsigned len, const char *key)
120 avio_r8(pb); // unknown
123 if (genre < 1 || genre > ID3v1_GENRE_MAX)
125 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
126 av_dict_set(&c->fc->metadata, key, ff_id3v1_genre_str[genre-1], 0);
131 static const uint32_t mac_to_unicode[128] = {
132 0x00C4,0x00C5,0x00C7,0x00C9,0x00D1,0x00D6,0x00DC,0x00E1,
133 0x00E0,0x00E2,0x00E4,0x00E3,0x00E5,0x00E7,0x00E9,0x00E8,
134 0x00EA,0x00EB,0x00ED,0x00EC,0x00EE,0x00EF,0x00F1,0x00F3,
135 0x00F2,0x00F4,0x00F6,0x00F5,0x00FA,0x00F9,0x00FB,0x00FC,
136 0x2020,0x00B0,0x00A2,0x00A3,0x00A7,0x2022,0x00B6,0x00DF,
137 0x00AE,0x00A9,0x2122,0x00B4,0x00A8,0x2260,0x00C6,0x00D8,
138 0x221E,0x00B1,0x2264,0x2265,0x00A5,0x00B5,0x2202,0x2211,
139 0x220F,0x03C0,0x222B,0x00AA,0x00BA,0x03A9,0x00E6,0x00F8,
140 0x00BF,0x00A1,0x00AC,0x221A,0x0192,0x2248,0x2206,0x00AB,
141 0x00BB,0x2026,0x00A0,0x00C0,0x00C3,0x00D5,0x0152,0x0153,
142 0x2013,0x2014,0x201C,0x201D,0x2018,0x2019,0x00F7,0x25CA,
143 0x00FF,0x0178,0x2044,0x20AC,0x2039,0x203A,0xFB01,0xFB02,
144 0x2021,0x00B7,0x201A,0x201E,0x2030,0x00C2,0x00CA,0x00C1,
145 0x00CB,0x00C8,0x00CD,0x00CE,0x00CF,0x00CC,0x00D3,0x00D4,
146 0xF8FF,0x00D2,0x00DA,0x00DB,0x00D9,0x0131,0x02C6,0x02DC,
147 0x00AF,0x02D8,0x02D9,0x02DA,0x00B8,0x02DD,0x02DB,0x02C7,
150 static int mov_read_mac_string(MOVContext *c, AVIOContext *pb, int len,
151 char *dst, int dstlen)
154 char *end = dst+dstlen-1;
157 for (i = 0; i < len; i++) {
158 uint8_t t, c = avio_r8(pb);
159 if (c < 0x80 && p < end)
162 PUT_UTF8(mac_to_unicode[c-0x80], t, if (p < end) *p++ = t;);
168 static int mov_read_covr(MOVContext *c, AVIOContext *pb, int type, int len)
172 MOVStreamContext *sc;
177 case 0xd: id = AV_CODEC_ID_MJPEG; break;
178 case 0xe: id = AV_CODEC_ID_PNG; break;
179 case 0x1b: id = AV_CODEC_ID_BMP; break;
181 av_log(c->fc, AV_LOG_WARNING, "Unknown cover type: 0x%x.\n", type);
186 st = avformat_new_stream(c->fc, NULL);
188 return AVERROR(ENOMEM);
189 sc = av_mallocz(sizeof(*sc));
191 return AVERROR(ENOMEM);
194 ret = av_get_packet(pb, &pkt, len);
198 st->disposition |= AV_DISPOSITION_ATTACHED_PIC;
200 st->attached_pic = pkt;
201 st->attached_pic.stream_index = st->index;
202 st->attached_pic.flags |= AV_PKT_FLAG_KEY;
204 st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
205 st->codec->codec_id = id;
210 static int mov_metadata_loci(MOVContext *c, AVIOContext *pb, unsigned len)
212 char language[4] = { 0 };
214 uint16_t langcode = 0;
215 double longitude, latitude;
216 const char *key = "location";
218 if (len < 4 + 2 + 1 + 1 + 4 + 4 + 4)
219 return AVERROR_INVALIDDATA;
221 avio_skip(pb, 4); // version+flags
222 langcode = avio_rb16(pb);
223 ff_mov_lang_to_iso639(langcode, language);
226 len -= avio_get_str(pb, len, buf, sizeof(buf)); // place name
228 return AVERROR_INVALIDDATA;
229 avio_skip(pb, 1); // role
233 return AVERROR_INVALIDDATA;
234 longitude = ((int32_t) avio_rb32(pb)) / (float) (1 << 16);
235 latitude = ((int32_t) avio_rb32(pb)) / (float) (1 << 16);
237 // Try to output in the same format as the ?xyz field
238 snprintf(buf, sizeof(buf), "%+08.4f%+09.4f/", latitude, longitude);
239 if (*language && strcmp(language, "und")) {
241 snprintf(key2, sizeof(key2), "%s-%s", key, language);
242 av_dict_set(&c->fc->metadata, key2, buf, 0);
244 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
245 return av_dict_set(&c->fc->metadata, key, buf, 0);
248 static int mov_read_udta_string(MOVContext *c, AVIOContext *pb, MOVAtom atom)
251 char key2[32], language[4] = {0};
253 const char *key = NULL;
254 uint16_t langcode = 0;
255 uint32_t data_type = 0, str_size, str_size_alloc;
256 int (*parse)(MOVContext*, AVIOContext*, unsigned, const char*) = NULL;
260 case MKTAG( '@','P','R','M'): key = "premiere_version"; raw = 1; break;
261 case MKTAG( '@','P','R','Q'): key = "quicktime_version"; raw = 1; break;
262 case MKTAG( 'X','M','P','_'):
263 if (c->export_xmp) { key = "xmp"; raw = 1; } break;
264 case MKTAG( 'a','A','R','T'): key = "album_artist"; break;
265 case MKTAG( 'a','k','I','D'): key = "account_type";
266 parse = mov_metadata_int8_no_padding; break;
267 case MKTAG( 'a','p','I','D'): key = "account_id"; break;
268 case MKTAG( 'c','a','t','g'): key = "category"; break;
269 case MKTAG( 'c','p','i','l'): key = "compilation";
270 parse = mov_metadata_int8_no_padding; break;
271 case MKTAG( 'c','p','r','t'): key = "copyright"; break;
272 case MKTAG( 'd','e','s','c'): key = "description"; break;
273 case MKTAG( 'd','i','s','k'): key = "disc";
274 parse = mov_metadata_track_or_disc_number; break;
275 case MKTAG( 'e','g','i','d'): key = "episode_uid";
276 parse = mov_metadata_int8_no_padding; break;
277 case MKTAG( 'g','n','r','e'): key = "genre";
278 parse = mov_metadata_gnre; break;
279 case MKTAG( 'h','d','v','d'): key = "hd_video";
280 parse = mov_metadata_int8_no_padding; break;
281 case MKTAG( 'k','e','y','w'): key = "keywords"; break;
282 case MKTAG( 'l','d','e','s'): key = "synopsis"; break;
283 case MKTAG( 'l','o','c','i'):
284 return mov_metadata_loci(c, pb, atom.size);
285 case MKTAG( 'p','c','s','t'): key = "podcast";
286 parse = mov_metadata_int8_no_padding; break;
287 case MKTAG( 'p','g','a','p'): key = "gapless_playback";
288 parse = mov_metadata_int8_no_padding; break;
289 case MKTAG( 'p','u','r','d'): key = "purchase_date"; break;
290 case MKTAG( 'r','t','n','g'): key = "rating";
291 parse = mov_metadata_int8_no_padding; break;
292 case MKTAG( 's','o','a','a'): key = "sort_album_artist"; break;
293 case MKTAG( 's','o','a','l'): key = "sort_album"; break;
294 case MKTAG( 's','o','a','r'): key = "sort_artist"; break;
295 case MKTAG( 's','o','c','o'): key = "sort_composer"; break;
296 case MKTAG( 's','o','n','m'): key = "sort_name"; break;
297 case MKTAG( 's','o','s','n'): key = "sort_show"; break;
298 case MKTAG( 's','t','i','k'): key = "media_type";
299 parse = mov_metadata_int8_no_padding; break;
300 case MKTAG( 't','r','k','n'): key = "track";
301 parse = mov_metadata_track_or_disc_number; break;
302 case MKTAG( 't','v','e','n'): key = "episode_id"; break;
303 case MKTAG( 't','v','e','s'): key = "episode_sort";
304 parse = mov_metadata_int8_bypass_padding; break;
305 case MKTAG( 't','v','n','n'): key = "network"; break;
306 case MKTAG( 't','v','s','h'): key = "show"; break;
307 case MKTAG( 't','v','s','n'): key = "season_number";
308 parse = mov_metadata_int8_bypass_padding; break;
309 case MKTAG(0xa9,'A','R','T'): key = "artist"; break;
310 case MKTAG(0xa9,'P','R','D'): key = "producer"; break;
311 case MKTAG(0xa9,'a','l','b'): key = "album"; break;
312 case MKTAG(0xa9,'a','u','t'): key = "artist"; break;
313 case MKTAG(0xa9,'c','h','p'): key = "chapter"; break;
314 case MKTAG(0xa9,'c','m','t'): key = "comment"; break;
315 case MKTAG(0xa9,'c','o','m'): key = "composer"; break;
316 case MKTAG(0xa9,'c','p','y'): key = "copyright"; break;
317 case MKTAG(0xa9,'d','a','y'): key = "date"; break;
318 case MKTAG(0xa9,'d','i','r'): key = "director"; break;
319 case MKTAG(0xa9,'d','i','s'): key = "disclaimer"; break;
320 case MKTAG(0xa9,'e','d','1'): key = "edit_date"; break;
321 case MKTAG(0xa9,'e','n','c'): key = "encoder"; break;
322 case MKTAG(0xa9,'f','m','t'): key = "original_format"; break;
323 case MKTAG(0xa9,'g','e','n'): key = "genre"; break;
324 case MKTAG(0xa9,'g','r','p'): key = "grouping"; break;
325 case MKTAG(0xa9,'h','s','t'): key = "host_computer"; break;
326 case MKTAG(0xa9,'i','n','f'): key = "comment"; break;
327 case MKTAG(0xa9,'l','y','r'): key = "lyrics"; break;
328 case MKTAG(0xa9,'m','a','k'): key = "make"; break;
329 case MKTAG(0xa9,'m','o','d'): key = "model"; break;
330 case MKTAG(0xa9,'n','a','m'): key = "title"; break;
331 case MKTAG(0xa9,'o','p','e'): key = "original_artist"; break;
332 case MKTAG(0xa9,'p','r','d'): key = "producer"; break;
333 case MKTAG(0xa9,'p','r','f'): key = "performers"; break;
334 case MKTAG(0xa9,'r','e','q'): key = "playback_requirements"; break;
335 case MKTAG(0xa9,'s','r','c'): key = "original_source"; break;
336 case MKTAG(0xa9,'s','t','3'): key = "subtitle"; break;
337 case MKTAG(0xa9,'s','w','r'): key = "encoder"; break;
338 case MKTAG(0xa9,'t','o','o'): key = "encoder"; break;
339 case MKTAG(0xa9,'t','r','k'): key = "track"; break;
340 case MKTAG(0xa9,'u','r','l'): key = "URL"; break;
341 case MKTAG(0xa9,'w','r','n'): key = "warning"; break;
342 case MKTAG(0xa9,'w','r','t'): key = "composer"; break;
343 case MKTAG(0xa9,'x','y','z'): key = "location"; break;
346 if (c->itunes_metadata && atom.size > 8) {
347 int data_size = avio_rb32(pb);
348 int tag = avio_rl32(pb);
349 if (tag == MKTAG('d','a','t','a')) {
350 data_type = avio_rb32(pb); // type
351 avio_rb32(pb); // unknown
352 str_size = data_size - 16;
355 if (atom.type == MKTAG('c', 'o', 'v', 'r')) {
356 int ret = mov_read_covr(c, pb, data_type, str_size);
358 av_log(c->fc, AV_LOG_ERROR, "Error parsing cover art.\n");
363 } else if (atom.size > 4 && key && !c->itunes_metadata && !raw) {
364 str_size = avio_rb16(pb); // string length
365 langcode = avio_rb16(pb);
366 ff_mov_lang_to_iso639(langcode, language);
369 str_size = atom.size;
371 if (c->export_all && !key) {
372 snprintf(tmp_key, 5, "%.4s", (char*)&atom.type);
379 return AVERROR_INVALIDDATA;
381 // worst-case requirement for output string in case of utf8 coded input
382 str_size_alloc = (raw ? str_size : str_size * 2) + 1;
383 str = av_malloc(str_size_alloc);
385 return AVERROR(ENOMEM);
388 parse(c, pb, str_size, key);
390 if (!raw && (data_type == 3 || (data_type == 0 && (langcode < 0x400 || langcode == 0x7fff)))) { // MAC Encoded
391 mov_read_mac_string(c, pb, str_size, str, str_size_alloc);
393 int ret = avio_read(pb, str, str_size);
394 if (ret != str_size) {
396 return ret < 0 ? ret : AVERROR_INVALIDDATA;
400 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
401 av_dict_set(&c->fc->metadata, key, str, 0);
402 if (*language && strcmp(language, "und")) {
403 snprintf(key2, sizeof(key2), "%s-%s", key, language);
404 av_dict_set(&c->fc->metadata, key2, str, 0);
407 av_dlog(c->fc, "lang \"%3s\" ", language);
408 av_dlog(c->fc, "tag \"%s\" value \"%s\" atom \"%.4s\" %d %"PRId64"\n",
409 key, str, (char*)&atom.type, str_size_alloc, atom.size);
415 static int mov_read_chpl(MOVContext *c, AVIOContext *pb, MOVAtom atom)
418 int i, nb_chapters, str_len, version;
421 if ((atom.size -= 5) < 0)
424 version = avio_r8(pb);
427 avio_rb32(pb); // ???
428 nb_chapters = avio_r8(pb);
430 for (i = 0; i < nb_chapters; i++) {
434 start = avio_rb64(pb);
435 str_len = avio_r8(pb);
437 if ((atom.size -= 9+str_len) < 0)
440 avio_read(pb, str, str_len);
442 avpriv_new_chapter(c->fc, i, (AVRational){1,10000000}, start, AV_NOPTS_VALUE, str);
447 #define MIN_DATA_ENTRY_BOX_SIZE 12
448 static int mov_read_dref(MOVContext *c, AVIOContext *pb, MOVAtom atom)
451 MOVStreamContext *sc;
454 if (c->fc->nb_streams < 1)
456 st = c->fc->streams[c->fc->nb_streams-1];
459 avio_rb32(pb); // version + flags
460 entries = avio_rb32(pb);
461 if (entries > (atom.size - 1) / MIN_DATA_ENTRY_BOX_SIZE + 1 ||
462 entries >= UINT_MAX / sizeof(*sc->drefs))
463 return AVERROR_INVALIDDATA;
466 sc->drefs = av_mallocz(entries * sizeof(*sc->drefs));
468 return AVERROR(ENOMEM);
469 sc->drefs_count = entries;
471 for (i = 0; i < sc->drefs_count; i++) {
472 MOVDref *dref = &sc->drefs[i];
473 uint32_t size = avio_rb32(pb);
474 int64_t next = avio_tell(pb) + size - 4;
477 return AVERROR_INVALIDDATA;
479 dref->type = avio_rl32(pb);
480 avio_rb32(pb); // version + flags
481 av_dlog(c->fc, "type %.4s size %d\n", (char*)&dref->type, size);
483 if (dref->type == MKTAG('a','l','i','s') && size > 150) {
484 /* macintosh alias record */
485 uint16_t volume_len, len;
490 volume_len = avio_r8(pb);
491 volume_len = FFMIN(volume_len, 27);
492 avio_read(pb, dref->volume, 27);
493 dref->volume[volume_len] = 0;
494 av_log(c->fc, AV_LOG_DEBUG, "volume %s, len %d\n", dref->volume, volume_len);
499 len = FFMIN(len, 63);
500 avio_read(pb, dref->filename, 63);
501 dref->filename[len] = 0;
502 av_log(c->fc, AV_LOG_DEBUG, "filename %s, len %d\n", dref->filename, len);
506 /* read next level up_from_alias/down_to_target */
507 dref->nlvl_from = avio_rb16(pb);
508 dref->nlvl_to = avio_rb16(pb);
509 av_log(c->fc, AV_LOG_DEBUG, "nlvl from %d, nlvl to %d\n",
510 dref->nlvl_from, dref->nlvl_to);
514 for (type = 0; type != -1 && avio_tell(pb) < next; ) {
517 type = avio_rb16(pb);
519 av_log(c->fc, AV_LOG_DEBUG, "type %d, len %d\n", type, len);
522 if (type == 2) { // absolute path
524 dref->path = av_mallocz(len+1);
526 return AVERROR(ENOMEM);
527 avio_read(pb, dref->path, len);
528 if (len > volume_len && !strncmp(dref->path, dref->volume, volume_len)) {
530 memmove(dref->path, dref->path+volume_len, len);
533 for (j = 0; j < len; j++)
534 if (dref->path[j] == ':')
536 av_log(c->fc, AV_LOG_DEBUG, "path %s\n", dref->path);
537 } else if (type == 0) { // directory name
539 dref->dir = av_malloc(len+1);
541 return AVERROR(ENOMEM);
542 if (avio_read(pb, dref->dir, len) != len)
543 return AVERROR_INVALIDDATA;
545 for (j = 0; j < len; j++)
546 if (dref->dir[j] == ':')
548 av_log(c->fc, AV_LOG_DEBUG, "dir %s\n", dref->dir);
553 avio_seek(pb, next, SEEK_SET);
558 static int mov_read_hdlr(MOVContext *c, AVIOContext *pb, MOVAtom atom)
562 uint32_t av_unused ctype;
566 if (c->fc->nb_streams < 1) // meta before first trak
569 st = c->fc->streams[c->fc->nb_streams-1];
571 avio_r8(pb); /* version */
572 avio_rb24(pb); /* flags */
575 ctype = avio_rl32(pb);
576 type = avio_rl32(pb); /* component subtype */
578 av_dlog(c->fc, "ctype= %.4s (0x%08x)\n", (char*)&ctype, ctype);
579 av_dlog(c->fc, "stype= %.4s\n", (char*)&type);
581 if (type == MKTAG('v','i','d','e'))
582 st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
583 else if (type == MKTAG('s','o','u','n'))
584 st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
585 else if (type == MKTAG('m','1','a',' '))
586 st->codec->codec_id = AV_CODEC_ID_MP2;
587 else if ((type == MKTAG('s','u','b','p')) || (type == MKTAG('c','l','c','p')))
588 st->codec->codec_type = AVMEDIA_TYPE_SUBTITLE;
590 avio_rb32(pb); /* component manufacture */
591 avio_rb32(pb); /* component flags */
592 avio_rb32(pb); /* component flags mask */
594 title_size = atom.size - 24;
595 if (title_size > 0) {
596 title_str = av_malloc(title_size + 1); /* Add null terminator */
598 return AVERROR(ENOMEM);
599 avio_read(pb, title_str, title_size);
600 title_str[title_size] = 0;
602 av_dict_set(&st->metadata, "handler_name", title_str +
603 (!c->isom && title_str[0] == title_size - 1), 0);
604 av_freep(&title_str);
610 int ff_mov_read_esds(AVFormatContext *fc, AVIOContext *pb)
615 if (fc->nb_streams < 1)
617 st = fc->streams[fc->nb_streams-1];
619 avio_rb32(pb); /* version + flags */
620 ff_mp4_read_descr(fc, pb, &tag);
621 if (tag == MP4ESDescrTag) {
622 ff_mp4_parse_es_descr(pb, NULL);
624 avio_rb16(pb); /* ID */
626 ff_mp4_read_descr(fc, pb, &tag);
627 if (tag == MP4DecConfigDescrTag)
628 ff_mp4_read_dec_config_descr(fc, st, pb);
632 static int mov_read_esds(MOVContext *c, AVIOContext *pb, MOVAtom atom)
634 return ff_mov_read_esds(c->fc, pb);
637 static int mov_read_dac3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
640 int ac3info, acmod, lfeon, bsmod;
642 if (c->fc->nb_streams < 1)
644 st = c->fc->streams[c->fc->nb_streams-1];
646 ac3info = avio_rb24(pb);
647 bsmod = (ac3info >> 14) & 0x7;
648 acmod = (ac3info >> 11) & 0x7;
649 lfeon = (ac3info >> 10) & 0x1;
650 st->codec->channels = ((int[]){2,1,2,3,3,4,4,5})[acmod] + lfeon;
651 st->codec->channel_layout = avpriv_ac3_channel_layout_tab[acmod];
653 st->codec->channel_layout |= AV_CH_LOW_FREQUENCY;
654 st->codec->audio_service_type = bsmod;
655 if (st->codec->channels > 1 && bsmod == 0x7)
656 st->codec->audio_service_type = AV_AUDIO_SERVICE_TYPE_KARAOKE;
661 static int mov_read_dec3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
664 int eac3info, acmod, lfeon, bsmod;
666 if (c->fc->nb_streams < 1)
668 st = c->fc->streams[c->fc->nb_streams-1];
670 /* No need to parse fields for additional independent substreams and its
671 * associated dependent substreams since libavcodec's E-AC-3 decoder
672 * does not support them yet. */
673 avio_rb16(pb); /* data_rate and num_ind_sub */
674 eac3info = avio_rb24(pb);
675 bsmod = (eac3info >> 12) & 0x1f;
676 acmod = (eac3info >> 9) & 0x7;
677 lfeon = (eac3info >> 8) & 0x1;
678 st->codec->channel_layout = avpriv_ac3_channel_layout_tab[acmod];
680 st->codec->channel_layout |= AV_CH_LOW_FREQUENCY;
681 st->codec->channels = av_get_channel_layout_nb_channels(st->codec->channel_layout);
682 st->codec->audio_service_type = bsmod;
683 if (st->codec->channels > 1 && bsmod == 0x7)
684 st->codec->audio_service_type = AV_AUDIO_SERVICE_TYPE_KARAOKE;
689 static int mov_read_chan(MOVContext *c, AVIOContext *pb, MOVAtom atom)
693 if (c->fc->nb_streams < 1)
695 st = c->fc->streams[c->fc->nb_streams-1];
700 /* skip version and flags */
703 ff_mov_read_chan(c->fc, pb, st, atom.size - 4);
708 static int mov_read_wfex(MOVContext *c, AVIOContext *pb, MOVAtom atom)
713 if (c->fc->nb_streams < 1)
715 st = c->fc->streams[c->fc->nb_streams-1];
717 if ((ret = ff_get_wav_header(pb, st->codec, atom.size, 0)) < 0)
718 av_log(c->fc, AV_LOG_WARNING, "get_wav_header failed\n");
723 static int mov_read_pasp(MOVContext *c, AVIOContext *pb, MOVAtom atom)
725 const int num = avio_rb32(pb);
726 const int den = avio_rb32(pb);
729 if (c->fc->nb_streams < 1)
731 st = c->fc->streams[c->fc->nb_streams-1];
733 if ((st->sample_aspect_ratio.den != 1 || st->sample_aspect_ratio.num) && // default
734 (den != st->sample_aspect_ratio.den || num != st->sample_aspect_ratio.num)) {
735 av_log(c->fc, AV_LOG_WARNING,
736 "sample aspect ratio already set to %d:%d, ignoring 'pasp' atom (%d:%d)\n",
737 st->sample_aspect_ratio.num, st->sample_aspect_ratio.den,
739 } else if (den != 0) {
740 st->sample_aspect_ratio.num = num;
741 st->sample_aspect_ratio.den = den;
746 /* this atom contains actual media data */
747 static int mov_read_mdat(MOVContext *c, AVIOContext *pb, MOVAtom atom)
749 if (atom.size == 0) /* wrong one (MP4) */
752 return 0; /* now go for moov */
755 /* read major brand, minor version and compatible brands and store them as metadata */
756 static int mov_read_ftyp(MOVContext *c, AVIOContext *pb, MOVAtom atom)
760 char* comp_brands_str;
761 uint8_t type[5] = {0};
763 avio_read(pb, type, 4);
764 if (strcmp(type, "qt "))
766 av_log(c->fc, AV_LOG_DEBUG, "ISO: File Type Major Brand: %.4s\n",(char *)&type);
767 av_dict_set(&c->fc->metadata, "major_brand", type, 0);
768 minor_ver = avio_rb32(pb); /* minor version */
769 av_dict_set_int(&c->fc->metadata, "minor_version", minor_ver, 0);
771 comp_brand_size = atom.size - 8;
772 if (comp_brand_size < 0)
773 return AVERROR_INVALIDDATA;
774 comp_brands_str = av_malloc(comp_brand_size + 1); /* Add null terminator */
775 if (!comp_brands_str)
776 return AVERROR(ENOMEM);
777 avio_read(pb, comp_brands_str, comp_brand_size);
778 comp_brands_str[comp_brand_size] = 0;
779 av_dict_set(&c->fc->metadata, "compatible_brands", comp_brands_str, 0);
780 av_freep(&comp_brands_str);
785 /* this atom should contain all header atoms */
786 static int mov_read_moov(MOVContext *c, AVIOContext *pb, MOVAtom atom)
791 av_log(c->fc, AV_LOG_WARNING, "Found duplicated MOOV Atom. Skipped it\n");
792 avio_skip(pb, atom.size);
796 if ((ret = mov_read_default(c, pb, atom)) < 0)
798 /* we parsed the 'moov' atom, we can terminate the parsing as soon as we find the 'mdat' */
799 /* so we don't parse the whole file if over a network */
801 return 0; /* now go for mdat */
804 static int mov_read_moof(MOVContext *c, AVIOContext *pb, MOVAtom atom)
806 if (!c->has_looked_for_mfra && c->use_mfra_for > 0) {
807 c->has_looked_for_mfra = 1;
810 av_log(c->fc, AV_LOG_VERBOSE, "stream has moof boxes, will look "
812 if ((ret = mov_read_mfra(c, pb)) < 0) {
813 av_log(c->fc, AV_LOG_VERBOSE, "found a moof box but failed to "
814 "read the mfra (may be a live ismv)\n");
817 av_log(c->fc, AV_LOG_VERBOSE, "found a moof box but stream is not "
818 "seekable, can not look for mfra\n");
821 c->fragment.moof_offset = c->fragment.implicit_offset = avio_tell(pb) - 8;
822 av_dlog(c->fc, "moof offset %"PRIx64"\n", c->fragment.moof_offset);
823 return mov_read_default(c, pb, atom);
826 static void mov_metadata_creation_time(AVDictionary **metadata, int64_t time)
830 struct tm *ptm, tmbuf;
832 if(time >= 2082844800)
833 time -= 2082844800; /* seconds between 1904-01-01 and Epoch */
835 ptm = gmtime_r(&timet, &tmbuf);
837 if (strftime(buffer, sizeof(buffer), "%Y-%m-%d %H:%M:%S", ptm))
838 av_dict_set(metadata, "creation_time", buffer, 0);
842 static int mov_read_mdhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
845 MOVStreamContext *sc;
847 char language[4] = {0};
849 int64_t creation_time;
851 if (c->fc->nb_streams < 1)
853 st = c->fc->streams[c->fc->nb_streams-1];
856 if (sc->time_scale) {
857 av_log(c->fc, AV_LOG_ERROR, "Multiple mdhd?\n");
858 return AVERROR_INVALIDDATA;
861 version = avio_r8(pb);
863 avpriv_request_sample(c->fc, "Version %d", version);
864 return AVERROR_PATCHWELCOME;
866 avio_rb24(pb); /* flags */
868 creation_time = avio_rb64(pb);
871 creation_time = avio_rb32(pb);
872 avio_rb32(pb); /* modification time */
874 mov_metadata_creation_time(&st->metadata, creation_time);
876 sc->time_scale = avio_rb32(pb);
877 st->duration = (version == 1) ? avio_rb64(pb) : avio_rb32(pb); /* duration */
879 lang = avio_rb16(pb); /* language */
880 if (ff_mov_lang_to_iso639(lang, language))
881 av_dict_set(&st->metadata, "language", language, 0);
882 avio_rb16(pb); /* quality */
887 static int mov_read_mvhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
889 int64_t creation_time;
890 int version = avio_r8(pb); /* version */
891 avio_rb24(pb); /* flags */
894 creation_time = avio_rb64(pb);
897 creation_time = avio_rb32(pb);
898 avio_rb32(pb); /* modification time */
900 mov_metadata_creation_time(&c->fc->metadata, creation_time);
901 c->time_scale = avio_rb32(pb); /* time scale */
903 av_dlog(c->fc, "time scale = %i\n", c->time_scale);
905 c->duration = (version == 1) ? avio_rb64(pb) : avio_rb32(pb); /* duration */
906 // set the AVCodecContext duration because the duration of individual tracks
908 if (c->time_scale > 0 && !c->trex_data)
909 c->fc->duration = av_rescale(c->duration, AV_TIME_BASE, c->time_scale);
910 avio_rb32(pb); /* preferred scale */
912 avio_rb16(pb); /* preferred volume */
914 avio_skip(pb, 10); /* reserved */
916 avio_skip(pb, 36); /* display matrix */
918 avio_rb32(pb); /* preview time */
919 avio_rb32(pb); /* preview duration */
920 avio_rb32(pb); /* poster time */
921 avio_rb32(pb); /* selection time */
922 avio_rb32(pb); /* selection duration */
923 avio_rb32(pb); /* current time */
924 avio_rb32(pb); /* next track ID */
928 static int mov_read_enda(MOVContext *c, AVIOContext *pb, MOVAtom atom)
933 if (c->fc->nb_streams < 1)
935 st = c->fc->streams[c->fc->nb_streams-1];
937 little_endian = avio_rb16(pb) & 0xFF;
938 av_dlog(c->fc, "enda %d\n", little_endian);
939 if (little_endian == 1) {
940 switch (st->codec->codec_id) {
941 case AV_CODEC_ID_PCM_S24BE:
942 st->codec->codec_id = AV_CODEC_ID_PCM_S24LE;
944 case AV_CODEC_ID_PCM_S32BE:
945 st->codec->codec_id = AV_CODEC_ID_PCM_S32LE;
947 case AV_CODEC_ID_PCM_F32BE:
948 st->codec->codec_id = AV_CODEC_ID_PCM_F32LE;
950 case AV_CODEC_ID_PCM_F64BE:
951 st->codec->codec_id = AV_CODEC_ID_PCM_F64LE;
960 static int mov_read_colr(MOVContext *c, AVIOContext *pb, MOVAtom atom)
963 char color_parameter_type[5] = { 0 };
964 int color_primaries, color_trc, color_matrix;
966 if (c->fc->nb_streams < 1)
968 st = c->fc->streams[c->fc->nb_streams - 1];
970 avio_read(pb, color_parameter_type, 4);
971 if (strncmp(color_parameter_type, "nclx", 4) &&
972 strncmp(color_parameter_type, "nclc", 4)) {
973 av_log(c->fc, AV_LOG_WARNING, "unsupported color_parameter_type %s\n",
974 color_parameter_type);
978 color_primaries = avio_rb16(pb);
979 color_trc = avio_rb16(pb);
980 color_matrix = avio_rb16(pb);
982 av_dlog(c->fc, "%s: pri %d trc %d matrix %d",
983 color_parameter_type, color_primaries, color_trc, color_matrix);
986 uint8_t color_range = avio_r8(pb) >> 7;
987 av_dlog(c->fc, " full %"PRIu8"", color_range);
989 st->codec->color_range = AVCOL_RANGE_JPEG;
991 st->codec->color_range = AVCOL_RANGE_MPEG;
992 /* 14496-12 references JPEG XR specs (rather than the more complete
993 * 23001-8) so some adjusting is required */
994 if (color_primaries >= AVCOL_PRI_FILM)
995 color_primaries = AVCOL_PRI_UNSPECIFIED;
996 if ((color_trc >= AVCOL_TRC_LINEAR &&
997 color_trc <= AVCOL_TRC_LOG_SQRT) ||
998 color_trc >= AVCOL_TRC_BT2020_10)
999 color_trc = AVCOL_TRC_UNSPECIFIED;
1000 if (color_matrix >= AVCOL_SPC_BT2020_NCL)
1001 color_matrix = AVCOL_SPC_UNSPECIFIED;
1002 st->codec->color_primaries = color_primaries;
1003 st->codec->color_trc = color_trc;
1004 st->codec->colorspace = color_matrix;
1006 /* color primaries, Table 4-4 */
1007 switch (color_primaries) {
1008 case 1: st->codec->color_primaries = AVCOL_PRI_BT709; break;
1009 case 5: st->codec->color_primaries = AVCOL_PRI_SMPTE170M; break;
1010 case 6: st->codec->color_primaries = AVCOL_PRI_SMPTE240M; break;
1012 /* color transfer, Table 4-5 */
1013 switch (color_trc) {
1014 case 1: st->codec->color_trc = AVCOL_TRC_BT709; break;
1015 case 7: st->codec->color_trc = AVCOL_TRC_SMPTE240M; break;
1017 /* color matrix, Table 4-6 */
1018 switch (color_matrix) {
1019 case 1: st->codec->colorspace = AVCOL_SPC_BT709; break;
1020 case 6: st->codec->colorspace = AVCOL_SPC_BT470BG; break;
1021 case 7: st->codec->colorspace = AVCOL_SPC_SMPTE240M; break;
1024 av_dlog(c->fc, "\n");
1029 static int mov_read_fiel(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1032 unsigned mov_field_order;
1033 enum AVFieldOrder decoded_field_order = AV_FIELD_UNKNOWN;
1035 if (c->fc->nb_streams < 1) // will happen with jp2 files
1037 st = c->fc->streams[c->fc->nb_streams-1];
1039 return AVERROR_INVALIDDATA;
1040 mov_field_order = avio_rb16(pb);
1041 if ((mov_field_order & 0xFF00) == 0x0100)
1042 decoded_field_order = AV_FIELD_PROGRESSIVE;
1043 else if ((mov_field_order & 0xFF00) == 0x0200) {
1044 switch (mov_field_order & 0xFF) {
1045 case 0x01: decoded_field_order = AV_FIELD_TT;
1047 case 0x06: decoded_field_order = AV_FIELD_BB;
1049 case 0x09: decoded_field_order = AV_FIELD_TB;
1051 case 0x0E: decoded_field_order = AV_FIELD_BT;
1055 if (decoded_field_order == AV_FIELD_UNKNOWN && mov_field_order) {
1056 av_log(NULL, AV_LOG_ERROR, "Unknown MOV field order 0x%04x\n", mov_field_order);
1058 st->codec->field_order = decoded_field_order;
1063 /* FIXME modify qdm2/svq3/h264 decoders to take full atom as extradata */
1064 static int mov_read_extradata(MOVContext *c, AVIOContext *pb, MOVAtom atom,
1065 enum AVCodecID codec_id)
1072 if (c->fc->nb_streams < 1) // will happen with jp2 files
1074 st= c->fc->streams[c->fc->nb_streams-1];
1076 if (st->codec->codec_id != codec_id)
1077 return 0; /* unexpected codec_id - don't mess with extradata */
1079 size= (uint64_t)st->codec->extradata_size + atom.size + 8 + FF_INPUT_BUFFER_PADDING_SIZE;
1080 if (size > INT_MAX || (uint64_t)atom.size > INT_MAX)
1081 return AVERROR_INVALIDDATA;
1082 if ((err = av_reallocp(&st->codec->extradata, size)) < 0) {
1083 st->codec->extradata_size = 0;
1086 buf = st->codec->extradata + st->codec->extradata_size;
1087 st->codec->extradata_size= size - FF_INPUT_BUFFER_PADDING_SIZE;
1088 AV_WB32( buf , atom.size + 8);
1089 AV_WL32( buf + 4, atom.type);
1090 err = avio_read(pb, buf + 8, atom.size);
1093 } else if (err < atom.size) {
1094 av_log(c->fc, AV_LOG_WARNING, "truncated extradata\n");
1095 st->codec->extradata_size -= atom.size - err;
1097 memset(buf + 8 + err, 0, FF_INPUT_BUFFER_PADDING_SIZE);
1101 /* wrapper functions for reading ALAC/AVS/MJPEG/MJPEG2000 extradata atoms only for those codecs */
1102 static int mov_read_alac(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1104 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_ALAC);
1107 static int mov_read_avss(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1109 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_AVS);
1112 static int mov_read_jp2h(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1114 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_JPEG2000);
1117 static int mov_read_avid(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1119 int ret = mov_read_extradata(c, pb, atom, AV_CODEC_ID_AVUI);
1121 ret = mov_read_extradata(c, pb, atom, AV_CODEC_ID_DNXHD);
1125 static int mov_read_targa_y216(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1127 int ret = mov_read_extradata(c, pb, atom, AV_CODEC_ID_TARGA_Y216);
1129 if (!ret && c->fc->nb_streams >= 1) {
1130 AVCodecContext *avctx = c->fc->streams[c->fc->nb_streams-1]->codec;
1131 if (avctx->extradata_size >= 40) {
1132 avctx->height = AV_RB16(&avctx->extradata[36]);
1133 avctx->width = AV_RB16(&avctx->extradata[38]);
1139 static int mov_read_ares(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1141 if (c->fc->nb_streams >= 1) {
1142 AVCodecContext *codec = c->fc->streams[c->fc->nb_streams-1]->codec;
1143 if (codec->codec_tag == MKTAG('A', 'V', 'i', 'n') &&
1144 codec->codec_id == AV_CODEC_ID_H264 &&
1147 /* For AVID AVCI50, force width of 1440 to be able to select the correct SPS and PPS */
1148 if (avio_rb16(pb) == 0xd4d)
1149 codec->width = 1440;
1154 return mov_read_avid(c, pb, atom);
1157 static int mov_read_svq3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1159 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_SVQ3);
1162 static int mov_read_wave(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1166 if (c->fc->nb_streams < 1)
1168 st = c->fc->streams[c->fc->nb_streams-1];
1170 if ((uint64_t)atom.size > (1<<30))
1171 return AVERROR_INVALIDDATA;
1173 if (st->codec->codec_id == AV_CODEC_ID_QDM2 ||
1174 st->codec->codec_id == AV_CODEC_ID_QDMC ||
1175 st->codec->codec_id == AV_CODEC_ID_SPEEX) {
1176 // pass all frma atom to codec, needed at least for QDMC and QDM2
1177 av_free(st->codec->extradata);
1178 if (ff_get_extradata(st->codec, pb, atom.size) < 0)
1179 return AVERROR(ENOMEM);
1180 } else if (atom.size > 8) { /* to read frma, esds atoms */
1182 if ((ret = mov_read_default(c, pb, atom)) < 0)
1185 avio_skip(pb, atom.size);
1190 * This function reads atom content and puts data in extradata without tag
1191 * nor size unlike mov_read_extradata.
1193 static int mov_read_glbl(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1197 if (c->fc->nb_streams < 1)
1199 st = c->fc->streams[c->fc->nb_streams-1];
1201 if ((uint64_t)atom.size > (1<<30))
1202 return AVERROR_INVALIDDATA;
1204 if (atom.size >= 10) {
1205 // Broken files created by legacy versions of libavformat will
1206 // wrap a whole fiel atom inside of a glbl atom.
1207 unsigned size = avio_rb32(pb);
1208 unsigned type = avio_rl32(pb);
1209 avio_seek(pb, -8, SEEK_CUR);
1210 if (type == MKTAG('f','i','e','l') && size == atom.size)
1211 return mov_read_default(c, pb, atom);
1213 if (st->codec->extradata_size > 1 && st->codec->extradata) {
1214 av_log(c, AV_LOG_WARNING, "ignoring multiple glbl\n");
1217 av_free(st->codec->extradata);
1218 if (ff_get_extradata(st->codec, pb, atom.size) < 0)
1219 return AVERROR(ENOMEM);
1224 static int mov_read_dvc1(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1227 uint8_t profile_level;
1230 if (c->fc->nb_streams < 1)
1232 st = c->fc->streams[c->fc->nb_streams-1];
1234 if (atom.size >= (1<<28) || atom.size < 7)
1235 return AVERROR_INVALIDDATA;
1237 profile_level = avio_r8(pb);
1238 if ((profile_level & 0xf0) != 0xc0)
1241 avio_seek(pb, 6, SEEK_CUR);
1242 av_free(st->codec->extradata);
1243 if ((ret = ff_get_extradata(st->codec, pb, atom.size - 7)) < 0)
1250 * An strf atom is a BITMAPINFOHEADER struct. This struct is 40 bytes itself,
1251 * but can have extradata appended at the end after the 40 bytes belonging
1254 static int mov_read_strf(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1258 if (c->fc->nb_streams < 1)
1260 if (atom.size <= 40)
1262 st = c->fc->streams[c->fc->nb_streams-1];
1264 if ((uint64_t)atom.size > (1<<30))
1265 return AVERROR_INVALIDDATA;
1268 av_free(st->codec->extradata);
1269 if (ff_get_extradata(st->codec, pb, atom.size - 40) < 0)
1270 return AVERROR(ENOMEM);
1274 static int mov_read_stco(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1277 MOVStreamContext *sc;
1278 unsigned int i, entries;
1280 if (c->fc->nb_streams < 1)
1282 st = c->fc->streams[c->fc->nb_streams-1];
1285 avio_r8(pb); /* version */
1286 avio_rb24(pb); /* flags */
1288 entries = avio_rb32(pb);
1293 if (sc->chunk_offsets)
1294 av_log(c->fc, AV_LOG_WARNING, "Duplicated STCO atom\n");
1295 av_free(sc->chunk_offsets);
1296 sc->chunk_count = 0;
1297 sc->chunk_offsets = av_malloc_array(entries, sizeof(*sc->chunk_offsets));
1298 if (!sc->chunk_offsets)
1299 return AVERROR(ENOMEM);
1300 sc->chunk_count = entries;
1302 if (atom.type == MKTAG('s','t','c','o'))
1303 for (i = 0; i < entries && !pb->eof_reached; i++)
1304 sc->chunk_offsets[i] = avio_rb32(pb);
1305 else if (atom.type == MKTAG('c','o','6','4'))
1306 for (i = 0; i < entries && !pb->eof_reached; i++)
1307 sc->chunk_offsets[i] = avio_rb64(pb);
1309 return AVERROR_INVALIDDATA;
1311 sc->chunk_count = i;
1313 if (pb->eof_reached)
1320 * Compute codec id for 'lpcm' tag.
1321 * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
1323 enum AVCodecID ff_mov_get_lpcm_codec_id(int bps, int flags)
1330 return ff_get_pcm_codec_id(bps, flags & 1, flags & 2, flags & 4 ? -1 : 0);
1333 static int mov_codec_id(AVStream *st, uint32_t format)
1335 int id = ff_codec_get_id(ff_codec_movaudio_tags, format);
1338 ((format & 0xFFFF) == 'm' + ('s' << 8) ||
1339 (format & 0xFFFF) == 'T' + ('S' << 8)))
1340 id = ff_codec_get_id(ff_codec_wav_tags, av_bswap32(format) & 0xFFFF);
1342 if (st->codec->codec_type != AVMEDIA_TYPE_VIDEO && id > 0) {
1343 st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
1344 } else if (st->codec->codec_type != AVMEDIA_TYPE_AUDIO &&
1345 /* skip old asf mpeg4 tag */
1346 format && format != MKTAG('m','p','4','s')) {
1347 id = ff_codec_get_id(ff_codec_movvideo_tags, format);
1349 id = ff_codec_get_id(ff_codec_bmp_tags, format);
1351 st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
1352 else if (st->codec->codec_type == AVMEDIA_TYPE_DATA ||
1353 (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE &&
1354 st->codec->codec_id == AV_CODEC_ID_NONE)) {
1355 id = ff_codec_get_id(ff_codec_movsubtitle_tags, format);
1357 st->codec->codec_type = AVMEDIA_TYPE_SUBTITLE;
1361 st->codec->codec_tag = format;
1366 static void mov_parse_stsd_video(MOVContext *c, AVIOContext *pb,
1367 AVStream *st, MOVStreamContext *sc)
1369 uint8_t codec_name[32];
1370 unsigned int color_depth, len, j;
1371 int color_greyscale;
1374 avio_rb16(pb); /* version */
1375 avio_rb16(pb); /* revision level */
1376 avio_rb32(pb); /* vendor */
1377 avio_rb32(pb); /* temporal quality */
1378 avio_rb32(pb); /* spatial quality */
1380 st->codec->width = avio_rb16(pb); /* width */
1381 st->codec->height = avio_rb16(pb); /* height */
1383 avio_rb32(pb); /* horiz resolution */
1384 avio_rb32(pb); /* vert resolution */
1385 avio_rb32(pb); /* data size, always 0 */
1386 avio_rb16(pb); /* frames per samples */
1388 len = avio_r8(pb); /* codec name, pascal string */
1391 mov_read_mac_string(c, pb, len, codec_name, sizeof(codec_name));
1393 avio_skip(pb, 31 - len);
1396 av_dict_set(&st->metadata, "encoder", codec_name, 0);
1398 /* codec_tag YV12 triggers an UV swap in rawdec.c */
1399 if (!memcmp(codec_name, "Planar Y'CbCr 8-bit 4:2:0", 25)) {
1400 st->codec->codec_tag = MKTAG('I', '4', '2', '0');
1401 st->codec->width &= ~1;
1402 st->codec->height &= ~1;
1404 /* Flash Media Server uses tag H263 with Sorenson Spark */
1405 if (st->codec->codec_tag == MKTAG('H','2','6','3') &&
1406 !memcmp(codec_name, "Sorenson H263", 13))
1407 st->codec->codec_id = AV_CODEC_ID_FLV1;
1409 st->codec->bits_per_coded_sample = avio_rb16(pb); /* depth */
1410 color_table_id = avio_rb16(pb); /* colortable id */
1411 av_dlog(c->fc, "depth %d, ctab id %d\n",
1412 st->codec->bits_per_coded_sample, color_table_id);
1413 /* figure out the palette situation */
1414 color_depth = st->codec->bits_per_coded_sample & 0x1F;
1415 color_greyscale = st->codec->bits_per_coded_sample & 0x20;
1416 /* Do not create a greyscale palette for cinepak */
1417 if (color_greyscale && st->codec->codec_id == AV_CODEC_ID_CINEPAK)
1420 /* if the depth is 2, 4, or 8 bpp, file is palettized */
1421 if ((color_depth == 2) || (color_depth == 4) || (color_depth == 8)) {
1422 /* for palette traversal */
1423 unsigned int color_start, color_count, color_end;
1424 unsigned char a, r, g, b;
1426 if (color_greyscale) {
1427 int color_index, color_dec;
1428 /* compute the greyscale palette */
1429 st->codec->bits_per_coded_sample = color_depth;
1430 color_count = 1 << color_depth;
1432 color_dec = 256 / (color_count - 1);
1433 for (j = 0; j < color_count; j++) {
1434 r = g = b = color_index;
1435 sc->palette[j] = (0xFFU << 24) | (r << 16) | (g << 8) | (b);
1436 color_index -= color_dec;
1437 if (color_index < 0)
1440 } else if (color_table_id) {
1441 const uint8_t *color_table;
1442 /* if flag bit 3 is set, use the default palette */
1443 color_count = 1 << color_depth;
1444 if (color_depth == 2)
1445 color_table = ff_qt_default_palette_4;
1446 else if (color_depth == 4)
1447 color_table = ff_qt_default_palette_16;
1449 color_table = ff_qt_default_palette_256;
1451 for (j = 0; j < color_count; j++) {
1452 r = color_table[j * 3 + 0];
1453 g = color_table[j * 3 + 1];
1454 b = color_table[j * 3 + 2];
1455 sc->palette[j] = (0xFFU << 24) | (r << 16) | (g << 8) | (b);
1458 /* load the palette from the file */
1459 color_start = avio_rb32(pb);
1460 color_count = avio_rb16(pb);
1461 color_end = avio_rb16(pb);
1462 if ((color_start <= 255) && (color_end <= 255)) {
1463 for (j = color_start; j <= color_end; j++) {
1464 /* each A, R, G, or B component is 16 bits;
1465 * only use the top 8 bits */
1474 sc->palette[j] = (a << 24 ) | (r << 16) | (g << 8) | (b);
1478 sc->has_palette = 1;
1482 static void mov_parse_stsd_audio(MOVContext *c, AVIOContext *pb,
1483 AVStream *st, MOVStreamContext *sc)
1485 int bits_per_sample, flags;
1486 uint16_t version = avio_rb16(pb);
1487 AVDictionaryEntry *compatible_brands = av_dict_get(c->fc->metadata, "compatible_brands", NULL, AV_DICT_MATCH_CASE);
1489 avio_rb16(pb); /* revision level */
1490 avio_rb32(pb); /* vendor */
1492 st->codec->channels = avio_rb16(pb); /* channel count */
1493 st->codec->bits_per_coded_sample = avio_rb16(pb); /* sample size */
1494 av_dlog(c->fc, "audio channels %d\n", st->codec->channels);
1496 sc->audio_cid = avio_rb16(pb);
1497 avio_rb16(pb); /* packet size = 0 */
1499 st->codec->sample_rate = ((avio_rb32(pb) >> 16));
1501 // Read QT version 1 fields. In version 0 these do not exist.
1502 av_dlog(c->fc, "version =%d, isom =%d\n", version, c->isom);
1504 (compatible_brands && strstr(compatible_brands->value, "qt "))) {
1507 sc->samples_per_frame = avio_rb32(pb);
1508 avio_rb32(pb); /* bytes per packet */
1509 sc->bytes_per_frame = avio_rb32(pb);
1510 avio_rb32(pb); /* bytes per sample */
1511 } else if (version == 2) {
1512 avio_rb32(pb); /* sizeof struct only */
1513 st->codec->sample_rate = av_int2double(avio_rb64(pb));
1514 st->codec->channels = avio_rb32(pb);
1515 avio_rb32(pb); /* always 0x7F000000 */
1516 st->codec->bits_per_coded_sample = avio_rb32(pb);
1518 flags = avio_rb32(pb); /* lpcm format specific flag */
1519 sc->bytes_per_frame = avio_rb32(pb);
1520 sc->samples_per_frame = avio_rb32(pb);
1521 if (st->codec->codec_tag == MKTAG('l','p','c','m'))
1522 st->codec->codec_id =
1523 ff_mov_get_lpcm_codec_id(st->codec->bits_per_coded_sample,
1528 switch (st->codec->codec_id) {
1529 case AV_CODEC_ID_PCM_S8:
1530 case AV_CODEC_ID_PCM_U8:
1531 if (st->codec->bits_per_coded_sample == 16)
1532 st->codec->codec_id = AV_CODEC_ID_PCM_S16BE;
1534 case AV_CODEC_ID_PCM_S16LE:
1535 case AV_CODEC_ID_PCM_S16BE:
1536 if (st->codec->bits_per_coded_sample == 8)
1537 st->codec->codec_id = AV_CODEC_ID_PCM_S8;
1538 else if (st->codec->bits_per_coded_sample == 24)
1539 st->codec->codec_id =
1540 st->codec->codec_id == AV_CODEC_ID_PCM_S16BE ?
1541 AV_CODEC_ID_PCM_S24BE : AV_CODEC_ID_PCM_S24LE;
1542 else if (st->codec->bits_per_coded_sample == 32)
1543 st->codec->codec_id =
1544 st->codec->codec_id == AV_CODEC_ID_PCM_S16BE ?
1545 AV_CODEC_ID_PCM_S32BE : AV_CODEC_ID_PCM_S32LE;
1547 /* set values for old format before stsd version 1 appeared */
1548 case AV_CODEC_ID_MACE3:
1549 sc->samples_per_frame = 6;
1550 sc->bytes_per_frame = 2 * st->codec->channels;
1552 case AV_CODEC_ID_MACE6:
1553 sc->samples_per_frame = 6;
1554 sc->bytes_per_frame = 1 * st->codec->channels;
1556 case AV_CODEC_ID_ADPCM_IMA_QT:
1557 sc->samples_per_frame = 64;
1558 sc->bytes_per_frame = 34 * st->codec->channels;
1560 case AV_CODEC_ID_GSM:
1561 sc->samples_per_frame = 160;
1562 sc->bytes_per_frame = 33;
1568 bits_per_sample = av_get_bits_per_sample(st->codec->codec_id);
1569 if (bits_per_sample) {
1570 st->codec->bits_per_coded_sample = bits_per_sample;
1571 sc->sample_size = (bits_per_sample >> 3) * st->codec->channels;
1575 static void mov_parse_stsd_subtitle(MOVContext *c, AVIOContext *pb,
1576 AVStream *st, MOVStreamContext *sc,
1579 // ttxt stsd contains display flags, justification, background
1580 // color, fonts, and default styles, so fake an atom to read it
1581 MOVAtom fake_atom = { .size = size };
1582 // mp4s contains a regular esds atom
1583 if (st->codec->codec_tag != AV_RL32("mp4s"))
1584 mov_read_glbl(c, pb, fake_atom);
1585 st->codec->width = sc->width;
1586 st->codec->height = sc->height;
1589 static uint32_t yuv_to_rgba(uint32_t ycbcr)
1594 y = (ycbcr >> 16) & 0xFF;
1595 cr = (ycbcr >> 8) & 0xFF;
1598 b = av_clip_uint8(1.164 * (y - 16) + 2.018 * (cb - 128));
1599 g = av_clip_uint8(1.164 * (y - 16) - 0.813 * (cr - 128) - 0.391 * (cb - 128));
1600 r = av_clip_uint8(1.164 * (y - 16) + 1.596 * (cr - 128));
1602 return (r << 16) | (g << 8) | b;
1605 static int mov_rewrite_dvd_sub_extradata(AVStream *st)
1607 char buf[256] = {0};
1608 uint8_t *src = st->codec->extradata;
1611 if (st->codec->extradata_size != 64)
1614 if (st->codec->width > 0 && st->codec->height > 0)
1615 snprintf(buf, sizeof(buf), "size: %dx%d\n",
1616 st->codec->width, st->codec->height);
1617 av_strlcat(buf, "palette: ", sizeof(buf));
1619 for (i = 0; i < 16; i++) {
1620 uint32_t yuv = AV_RB32(src + i * 4);
1621 uint32_t rgba = yuv_to_rgba(yuv);
1623 av_strlcatf(buf, sizeof(buf), "%06"PRIx32"%s", rgba, i != 15 ? ", " : "");
1626 if (av_strlcat(buf, "\n", sizeof(buf)) >= sizeof(buf))
1629 av_freep(&st->codec->extradata);
1630 st->codec->extradata_size = 0;
1631 st->codec->extradata = av_mallocz(strlen(buf) + FF_INPUT_BUFFER_PADDING_SIZE);
1632 if (!st->codec->extradata)
1633 return AVERROR(ENOMEM);
1634 st->codec->extradata_size = strlen(buf);
1635 memcpy(st->codec->extradata, buf, st->codec->extradata_size);
1640 static int mov_parse_stsd_data(MOVContext *c, AVIOContext *pb,
1641 AVStream *st, MOVStreamContext *sc,
1644 if (st->codec->codec_tag == MKTAG('t','m','c','d')) {
1645 if ((int)size != size || ff_get_extradata(st->codec, pb, size) < 0)
1646 return AVERROR(ENOMEM);
1648 MOVStreamContext *tmcd_ctx = st->priv_data;
1650 val = AV_RB32(st->codec->extradata + 4);
1651 tmcd_ctx->tmcd_flags = val;
1653 st->codec->flags2 |= CODEC_FLAG2_DROP_FRAME_TIMECODE;
1654 st->codec->time_base.den = st->codec->extradata[16]; /* number of frame */
1655 st->codec->time_base.num = 1;
1657 uint32_t len = AV_RB32(st->codec->extradata + 18); /* name atom length */
1658 uint32_t format = AV_RB32(st->codec->extradata + 22);
1659 if (format == AV_RB32("name") && (int64_t)size >= (int64_t)len + 18) {
1660 uint16_t str_size = AV_RB16(st->codec->extradata + 26); /* string length */
1661 if (str_size > 0 && size >= (int)str_size + 26) {
1662 char *reel_name = av_malloc(str_size + 1);
1664 return AVERROR(ENOMEM);
1665 memcpy(reel_name, st->codec->extradata + 30, str_size);
1666 reel_name[str_size] = 0; /* Add null terminator */
1667 /* don't add reel_name if emtpy string */
1668 if (*reel_name == 0) {
1671 av_dict_set(&st->metadata, "reel_name", reel_name, AV_DICT_DONT_STRDUP_VAL);
1678 /* other codec type, just skip (rtp, mp4s ...) */
1679 avio_skip(pb, size);
1684 static int mov_finalize_stsd_codec(MOVContext *c, AVIOContext *pb,
1685 AVStream *st, MOVStreamContext *sc)
1687 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
1688 !st->codec->sample_rate && sc->time_scale > 1)
1689 st->codec->sample_rate = sc->time_scale;
1691 /* special codec parameters handling */
1692 switch (st->codec->codec_id) {
1693 #if CONFIG_DV_DEMUXER
1694 case AV_CODEC_ID_DVAUDIO:
1695 c->dv_fctx = avformat_alloc_context();
1696 c->dv_demux = avpriv_dv_init_demux(c->dv_fctx);
1698 av_log(c->fc, AV_LOG_ERROR, "dv demux context init error\n");
1699 return AVERROR(ENOMEM);
1701 sc->dv_audio_container = 1;
1702 st->codec->codec_id = AV_CODEC_ID_PCM_S16LE;
1705 /* no ifdef since parameters are always those */
1706 case AV_CODEC_ID_QCELP:
1707 st->codec->channels = 1;
1708 // force sample rate for qcelp when not stored in mov
1709 if (st->codec->codec_tag != MKTAG('Q','c','l','p'))
1710 st->codec->sample_rate = 8000;
1711 // FIXME: Why is the following needed for some files?
1712 sc->samples_per_frame = 160;
1713 if (!sc->bytes_per_frame)
1714 sc->bytes_per_frame = 35;
1716 case AV_CODEC_ID_AMR_NB:
1717 st->codec->channels = 1;
1718 /* force sample rate for amr, stsd in 3gp does not store sample rate */
1719 st->codec->sample_rate = 8000;
1721 case AV_CODEC_ID_AMR_WB:
1722 st->codec->channels = 1;
1723 st->codec->sample_rate = 16000;
1725 case AV_CODEC_ID_MP2:
1726 case AV_CODEC_ID_MP3:
1727 /* force type after stsd for m1a hdlr */
1728 st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
1729 st->need_parsing = AVSTREAM_PARSE_FULL;
1731 case AV_CODEC_ID_GSM:
1732 case AV_CODEC_ID_ADPCM_MS:
1733 case AV_CODEC_ID_ADPCM_IMA_WAV:
1734 case AV_CODEC_ID_ILBC:
1735 case AV_CODEC_ID_MACE3:
1736 case AV_CODEC_ID_MACE6:
1737 case AV_CODEC_ID_QDM2:
1738 st->codec->block_align = sc->bytes_per_frame;
1740 case AV_CODEC_ID_ALAC:
1741 if (st->codec->extradata_size == 36) {
1742 st->codec->channels = AV_RB8 (st->codec->extradata + 21);
1743 st->codec->sample_rate = AV_RB32(st->codec->extradata + 32);
1746 case AV_CODEC_ID_AC3:
1747 case AV_CODEC_ID_EAC3:
1748 case AV_CODEC_ID_MPEG1VIDEO:
1749 case AV_CODEC_ID_VC1:
1750 st->need_parsing = AVSTREAM_PARSE_FULL;
1758 static int mov_skip_multiple_stsd(MOVContext *c, AVIOContext *pb,
1759 int codec_tag, int format,
1762 int video_codec_id = ff_codec_get_id(ff_codec_movvideo_tags, format);
1765 (codec_tag != format &&
1766 (c->fc->video_codec_id ? video_codec_id != c->fc->video_codec_id
1767 : codec_tag != MKTAG('j','p','e','g')))) {
1768 /* Multiple fourcc, we skip JPEG. This is not correct, we should
1769 * export it as a separate AVStream but this needs a few changes
1770 * in the MOV demuxer, patch welcome. */
1772 av_log(c->fc, AV_LOG_WARNING, "multiple fourcc not supported\n");
1773 avio_skip(pb, size);
1776 if ( codec_tag == AV_RL32("avc1") ||
1777 codec_tag == AV_RL32("hvc1") ||
1778 codec_tag == AV_RL32("hev1")
1780 av_log(c->fc, AV_LOG_WARNING, "Concatenated H.264 or H.265 might not play correctly.\n");
1785 int ff_mov_read_stsd_entries(MOVContext *c, AVIOContext *pb, int entries)
1788 MOVStreamContext *sc;
1789 int pseudo_stream_id;
1791 if (c->fc->nb_streams < 1)
1793 st = c->fc->streams[c->fc->nb_streams-1];
1796 for (pseudo_stream_id = 0;
1797 pseudo_stream_id < entries && !pb->eof_reached;
1798 pseudo_stream_id++) {
1799 //Parsing Sample description table
1801 int ret, dref_id = 1;
1802 MOVAtom a = { AV_RL32("stsd") };
1803 int64_t start_pos = avio_tell(pb);
1804 int64_t size = avio_rb32(pb); /* size */
1805 uint32_t format = avio_rl32(pb); /* data format */
1808 avio_rb32(pb); /* reserved */
1809 avio_rb16(pb); /* reserved */
1810 dref_id = avio_rb16(pb);
1811 }else if (size <= 7){
1812 av_log(c->fc, AV_LOG_ERROR, "invalid size %"PRId64" in stsd\n", size);
1813 return AVERROR_INVALIDDATA;
1816 if (mov_skip_multiple_stsd(c, pb, st->codec->codec_tag, format,
1817 size - (avio_tell(pb) - start_pos)))
1820 sc->pseudo_stream_id = st->codec->codec_tag ? -1 : pseudo_stream_id;
1821 sc->dref_id= dref_id;
1823 id = mov_codec_id(st, format);
1825 av_dlog(c->fc, "size=%"PRId64" 4CC= %c%c%c%c codec_type=%d\n", size,
1826 (format >> 0) & 0xff, (format >> 8) & 0xff, (format >> 16) & 0xff,
1827 (format >> 24) & 0xff, st->codec->codec_type);
1829 if (st->codec->codec_type==AVMEDIA_TYPE_VIDEO) {
1830 st->codec->codec_id = id;
1831 mov_parse_stsd_video(c, pb, st, sc);
1832 } else if (st->codec->codec_type==AVMEDIA_TYPE_AUDIO) {
1833 st->codec->codec_id = id;
1834 mov_parse_stsd_audio(c, pb, st, sc);
1835 } else if (st->codec->codec_type==AVMEDIA_TYPE_SUBTITLE){
1836 st->codec->codec_id = id;
1837 mov_parse_stsd_subtitle(c, pb, st, sc,
1838 size - (avio_tell(pb) - start_pos));
1840 ret = mov_parse_stsd_data(c, pb, st, sc,
1841 size - (avio_tell(pb) - start_pos));
1845 /* this will read extra atoms at the end (wave, alac, damr, avcC, hvcC, SMI ...) */
1846 a.size = size - (avio_tell(pb) - start_pos);
1848 if ((ret = mov_read_default(c, pb, a)) < 0)
1850 } else if (a.size > 0)
1851 avio_skip(pb, a.size);
1854 if (pb->eof_reached)
1857 return mov_finalize_stsd_codec(c, pb, st, sc);
1860 static int mov_read_stsd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1864 avio_r8(pb); /* version */
1865 avio_rb24(pb); /* flags */
1866 entries = avio_rb32(pb);
1868 return ff_mov_read_stsd_entries(c, pb, entries);
1871 static int mov_read_stsc(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1874 MOVStreamContext *sc;
1875 unsigned int i, entries;
1877 if (c->fc->nb_streams < 1)
1879 st = c->fc->streams[c->fc->nb_streams-1];
1882 avio_r8(pb); /* version */
1883 avio_rb24(pb); /* flags */
1885 entries = avio_rb32(pb);
1887 av_dlog(c->fc, "track[%i].stsc.entries = %i\n", c->fc->nb_streams-1, entries);
1892 av_log(c->fc, AV_LOG_WARNING, "Duplicated STSC atom\n");
1893 av_free(sc->stsc_data);
1895 sc->stsc_data = av_malloc_array(entries, sizeof(*sc->stsc_data));
1897 return AVERROR(ENOMEM);
1899 for (i = 0; i < entries && !pb->eof_reached; i++) {
1900 sc->stsc_data[i].first = avio_rb32(pb);
1901 sc->stsc_data[i].count = avio_rb32(pb);
1902 sc->stsc_data[i].id = avio_rb32(pb);
1907 if (pb->eof_reached)
1913 static int mov_read_stps(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1916 MOVStreamContext *sc;
1917 unsigned i, entries;
1919 if (c->fc->nb_streams < 1)
1921 st = c->fc->streams[c->fc->nb_streams-1];
1924 avio_rb32(pb); // version + flags
1926 entries = avio_rb32(pb);
1928 av_log(c->fc, AV_LOG_WARNING, "Duplicated STPS atom\n");
1929 av_free(sc->stps_data);
1931 sc->stps_data = av_malloc_array(entries, sizeof(*sc->stps_data));
1933 return AVERROR(ENOMEM);
1935 for (i = 0; i < entries && !pb->eof_reached; i++) {
1936 sc->stps_data[i] = avio_rb32(pb);
1937 //av_dlog(c->fc, "stps %d\n", sc->stps_data[i]);
1942 if (pb->eof_reached)
1948 static int mov_read_stss(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1951 MOVStreamContext *sc;
1952 unsigned int i, entries;
1954 if (c->fc->nb_streams < 1)
1956 st = c->fc->streams[c->fc->nb_streams-1];
1959 avio_r8(pb); /* version */
1960 avio_rb24(pb); /* flags */
1962 entries = avio_rb32(pb);
1964 av_dlog(c->fc, "keyframe_count = %d\n", entries);
1968 sc->keyframe_absent = 1;
1969 if (!st->need_parsing && st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
1970 st->need_parsing = AVSTREAM_PARSE_HEADERS;
1974 av_log(c->fc, AV_LOG_WARNING, "Duplicated STSS atom\n");
1975 if (entries >= UINT_MAX / sizeof(int))
1976 return AVERROR_INVALIDDATA;
1977 av_freep(&sc->keyframes);
1978 sc->keyframe_count = 0;
1979 sc->keyframes = av_malloc_array(entries, sizeof(*sc->keyframes));
1981 return AVERROR(ENOMEM);
1983 for (i = 0; i < entries && !pb->eof_reached; i++) {
1984 sc->keyframes[i] = avio_rb32(pb);
1985 //av_dlog(c->fc, "keyframes[]=%d\n", sc->keyframes[i]);
1988 sc->keyframe_count = i;
1990 if (pb->eof_reached)
1996 static int mov_read_stsz(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1999 MOVStreamContext *sc;
2000 unsigned int i, entries, sample_size, field_size, num_bytes;
2004 if (c->fc->nb_streams < 1)
2006 st = c->fc->streams[c->fc->nb_streams-1];
2009 avio_r8(pb); /* version */
2010 avio_rb24(pb); /* flags */
2012 if (atom.type == MKTAG('s','t','s','z')) {
2013 sample_size = avio_rb32(pb);
2014 if (!sc->sample_size) /* do not overwrite value computed in stsd */
2015 sc->sample_size = sample_size;
2016 sc->stsz_sample_size = sample_size;
2020 avio_rb24(pb); /* reserved */
2021 field_size = avio_r8(pb);
2023 entries = avio_rb32(pb);
2025 av_dlog(c->fc, "sample_size = %d sample_count = %d\n", sc->sample_size, entries);
2027 sc->sample_count = entries;
2031 if (field_size != 4 && field_size != 8 && field_size != 16 && field_size != 32) {
2032 av_log(c->fc, AV_LOG_ERROR, "Invalid sample field size %d\n", field_size);
2033 return AVERROR_INVALIDDATA;
2038 if (entries >= (UINT_MAX - 4) / field_size)
2039 return AVERROR_INVALIDDATA;
2040 if (sc->sample_sizes)
2041 av_log(c->fc, AV_LOG_WARNING, "Duplicated STSZ atom\n");
2042 av_free(sc->sample_sizes);
2043 sc->sample_count = 0;
2044 sc->sample_sizes = av_malloc_array(entries, sizeof(*sc->sample_sizes));
2045 if (!sc->sample_sizes)
2046 return AVERROR(ENOMEM);
2048 num_bytes = (entries*field_size+4)>>3;
2050 buf = av_malloc(num_bytes+FF_INPUT_BUFFER_PADDING_SIZE);
2052 av_freep(&sc->sample_sizes);
2053 return AVERROR(ENOMEM);
2056 if (avio_read(pb, buf, num_bytes) < num_bytes) {
2057 av_freep(&sc->sample_sizes);
2059 return AVERROR_INVALIDDATA;
2062 init_get_bits(&gb, buf, 8*num_bytes);
2064 for (i = 0; i < entries && !pb->eof_reached; i++) {
2065 sc->sample_sizes[i] = get_bits_long(&gb, field_size);
2066 sc->data_size += sc->sample_sizes[i];
2069 sc->sample_count = i;
2071 if (pb->eof_reached)
2078 static int mov_read_stts(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2081 MOVStreamContext *sc;
2082 unsigned int i, entries;
2084 int64_t total_sample_count=0;
2086 if (c->fc->nb_streams < 1)
2088 st = c->fc->streams[c->fc->nb_streams-1];
2091 avio_r8(pb); /* version */
2092 avio_rb24(pb); /* flags */
2093 entries = avio_rb32(pb);
2095 av_dlog(c->fc, "track[%i].stts.entries = %i\n",
2096 c->fc->nb_streams-1, entries);
2099 av_log(c->fc, AV_LOG_WARNING, "Duplicated STTS atom\n");
2100 av_free(sc->stts_data);
2102 sc->stts_data = av_malloc_array(entries, sizeof(*sc->stts_data));
2104 return AVERROR(ENOMEM);
2106 for (i = 0; i < entries && !pb->eof_reached; i++) {
2107 int sample_duration;
2110 sample_count=avio_rb32(pb);
2111 sample_duration = avio_rb32(pb);
2113 /* sample_duration < 0 is invalid based on the spec */
2114 if (sample_duration < 0) {
2115 av_log(c->fc, AV_LOG_ERROR, "Invalid SampleDelta %d in STTS, at %d st:%d\n",
2116 sample_duration, i, c->fc->nb_streams-1);
2117 sample_duration = 1;
2119 if (sample_count < 0) {
2120 av_log(c->fc, AV_LOG_ERROR, "Invalid sample_count=%d\n", sample_count);
2121 return AVERROR_INVALIDDATA;
2123 sc->stts_data[i].count= sample_count;
2124 sc->stts_data[i].duration= sample_duration;
2126 av_dlog(c->fc, "sample_count=%d, sample_duration=%d\n",
2127 sample_count, sample_duration);
2131 && sample_count == 1
2132 && total_sample_count > 100
2133 && sample_duration/10 > duration / total_sample_count)
2134 sample_duration = duration / total_sample_count;
2135 duration+=(int64_t)sample_duration*sample_count;
2136 total_sample_count+=sample_count;
2141 sc->duration_for_fps += duration;
2142 sc->nb_frames_for_fps += total_sample_count;
2144 if (pb->eof_reached)
2147 st->nb_frames= total_sample_count;
2149 st->duration= duration;
2150 sc->track_end = duration;
2154 static void mov_update_dts_shift(MOVStreamContext *sc, int duration)
2157 sc->dts_shift = FFMAX(sc->dts_shift, -duration);
2161 static int mov_read_ctts(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2164 MOVStreamContext *sc;
2165 unsigned int i, entries;
2167 if (c->fc->nb_streams < 1)
2169 st = c->fc->streams[c->fc->nb_streams-1];
2172 avio_r8(pb); /* version */
2173 avio_rb24(pb); /* flags */
2174 entries = avio_rb32(pb);
2176 av_dlog(c->fc, "track[%i].ctts.entries = %i\n", c->fc->nb_streams-1, entries);
2180 if (entries >= UINT_MAX / sizeof(*sc->ctts_data))
2181 return AVERROR_INVALIDDATA;
2182 sc->ctts_data = av_malloc(entries * sizeof(*sc->ctts_data));
2184 return AVERROR(ENOMEM);
2186 for (i = 0; i < entries && !pb->eof_reached; i++) {
2187 int count =avio_rb32(pb);
2188 int duration =avio_rb32(pb);
2190 sc->ctts_data[i].count = count;
2191 sc->ctts_data[i].duration= duration;
2193 av_dlog(c->fc, "count=%d, duration=%d\n",
2196 if (FFABS(duration) > (1<<28) && i+2<entries) {
2197 av_log(c->fc, AV_LOG_WARNING, "CTTS invalid\n");
2198 av_freep(&sc->ctts_data);
2204 mov_update_dts_shift(sc, duration);
2209 if (pb->eof_reached)
2212 av_dlog(c->fc, "dts shift %d\n", sc->dts_shift);
2217 static int mov_read_sbgp(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2220 MOVStreamContext *sc;
2221 unsigned int i, entries;
2223 uint32_t grouping_type;
2225 if (c->fc->nb_streams < 1)
2227 st = c->fc->streams[c->fc->nb_streams-1];
2230 version = avio_r8(pb); /* version */
2231 avio_rb24(pb); /* flags */
2232 grouping_type = avio_rl32(pb);
2233 if (grouping_type != MKTAG( 'r','a','p',' '))
2234 return 0; /* only support 'rap ' grouping */
2236 avio_rb32(pb); /* grouping_type_parameter */
2238 entries = avio_rb32(pb);
2242 av_log(c->fc, AV_LOG_WARNING, "Duplicated SBGP atom\n");
2243 av_free(sc->rap_group);
2244 sc->rap_group_count = 0;
2245 sc->rap_group = av_malloc_array(entries, sizeof(*sc->rap_group));
2247 return AVERROR(ENOMEM);
2249 for (i = 0; i < entries && !pb->eof_reached; i++) {
2250 sc->rap_group[i].count = avio_rb32(pb); /* sample_count */
2251 sc->rap_group[i].index = avio_rb32(pb); /* group_description_index */
2254 sc->rap_group_count = i;
2256 return pb->eof_reached ? AVERROR_EOF : 0;
2259 static void mov_build_index(MOVContext *mov, AVStream *st)
2261 MOVStreamContext *sc = st->priv_data;
2262 int64_t current_offset;
2263 int64_t current_dts = 0;
2264 unsigned int stts_index = 0;
2265 unsigned int stsc_index = 0;
2266 unsigned int stss_index = 0;
2267 unsigned int stps_index = 0;
2269 uint64_t stream_size = 0;
2271 /* adjust first dts according to edit list */
2272 if ((sc->empty_duration || sc->start_time) && mov->time_scale > 0) {
2273 if (sc->empty_duration)
2274 sc->empty_duration = av_rescale(sc->empty_duration, sc->time_scale, mov->time_scale);
2275 sc->time_offset = sc->start_time - sc->empty_duration;
2276 current_dts = -sc->time_offset;
2277 if (sc->ctts_count>0 && sc->stts_count>0 &&
2278 sc->ctts_data[0].duration / FFMAX(sc->stts_data[0].duration, 1) > 16) {
2279 /* more than 16 frames delay, dts are likely wrong
2280 this happens with files created by iMovie */
2282 st->codec->has_b_frames = 1;
2286 /* only use old uncompressed audio chunk demuxing when stts specifies it */
2287 if (!(st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
2288 sc->stts_count == 1 && sc->stts_data[0].duration == 1)) {
2289 unsigned int current_sample = 0;
2290 unsigned int stts_sample = 0;
2291 unsigned int sample_size;
2292 unsigned int distance = 0;
2293 unsigned int rap_group_index = 0;
2294 unsigned int rap_group_sample = 0;
2295 int rap_group_present = sc->rap_group_count && sc->rap_group;
2296 int key_off = (sc->keyframe_count && sc->keyframes[0] > 0) || (sc->stps_count && sc->stps_data[0] > 0);
2298 current_dts -= sc->dts_shift;
2300 if (!sc->sample_count || st->nb_index_entries)
2302 if (sc->sample_count >= UINT_MAX / sizeof(*st->index_entries) - st->nb_index_entries)
2304 if (av_reallocp_array(&st->index_entries,
2305 st->nb_index_entries + sc->sample_count,
2306 sizeof(*st->index_entries)) < 0) {
2307 st->nb_index_entries = 0;
2310 st->index_entries_allocated_size = (st->nb_index_entries + sc->sample_count) * sizeof(*st->index_entries);
2312 for (i = 0; i < sc->chunk_count; i++) {
2313 int64_t next_offset = i+1 < sc->chunk_count ? sc->chunk_offsets[i+1] : INT64_MAX;
2314 current_offset = sc->chunk_offsets[i];
2315 while (stsc_index + 1 < sc->stsc_count &&
2316 i + 1 == sc->stsc_data[stsc_index + 1].first)
2319 if (next_offset > current_offset && sc->sample_size>0 && sc->sample_size < sc->stsz_sample_size &&
2320 sc->stsc_data[stsc_index].count * (int64_t)sc->stsz_sample_size > next_offset - current_offset) {
2321 av_log(mov->fc, AV_LOG_WARNING, "STSZ sample size %d invalid (too large), ignoring\n", sc->stsz_sample_size);
2322 sc->stsz_sample_size = sc->sample_size;
2324 if (sc->stsz_sample_size>0 && sc->stsz_sample_size < sc->sample_size) {
2325 av_log(mov->fc, AV_LOG_WARNING, "STSZ sample size %d invalid (too small), ignoring\n", sc->stsz_sample_size);
2326 sc->stsz_sample_size = sc->sample_size;
2329 for (j = 0; j < sc->stsc_data[stsc_index].count; j++) {
2331 if (current_sample >= sc->sample_count) {
2332 av_log(mov->fc, AV_LOG_ERROR, "wrong sample count\n");
2336 if (!sc->keyframe_absent && (!sc->keyframe_count || current_sample+key_off == sc->keyframes[stss_index])) {
2338 if (stss_index + 1 < sc->keyframe_count)
2340 } else if (sc->stps_count && current_sample+key_off == sc->stps_data[stps_index]) {
2342 if (stps_index + 1 < sc->stps_count)
2345 if (rap_group_present && rap_group_index < sc->rap_group_count) {
2346 if (sc->rap_group[rap_group_index].index > 0)
2348 if (++rap_group_sample == sc->rap_group[rap_group_index].count) {
2349 rap_group_sample = 0;
2353 if (sc->keyframe_absent
2355 && !rap_group_present
2356 && (st->codec->codec_type == AVMEDIA_TYPE_AUDIO || (i==0 && j==0)))
2360 sample_size = sc->stsz_sample_size > 0 ? sc->stsz_sample_size : sc->sample_sizes[current_sample];
2361 if (sc->pseudo_stream_id == -1 ||
2362 sc->stsc_data[stsc_index].id - 1 == sc->pseudo_stream_id) {
2363 AVIndexEntry *e = &st->index_entries[st->nb_index_entries++];
2364 e->pos = current_offset;
2365 e->timestamp = current_dts;
2366 e->size = sample_size;
2367 e->min_distance = distance;
2368 e->flags = keyframe ? AVINDEX_KEYFRAME : 0;
2369 av_dlog(mov->fc, "AVIndex stream %d, sample %d, offset %"PRIx64", dts %"PRId64", "
2370 "size %d, distance %d, keyframe %d\n", st->index, current_sample,
2371 current_offset, current_dts, sample_size, distance, keyframe);
2372 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && st->nb_index_entries < 100)
2373 ff_rfps_add_frame(mov->fc, st, current_dts);
2376 current_offset += sample_size;
2377 stream_size += sample_size;
2378 current_dts += sc->stts_data[stts_index].duration;
2382 if (stts_index + 1 < sc->stts_count && stts_sample == sc->stts_data[stts_index].count) {
2388 if (st->duration > 0)
2389 st->codec->bit_rate = stream_size*8*sc->time_scale/st->duration;
2391 unsigned chunk_samples, total = 0;
2393 // compute total chunk count
2394 for (i = 0; i < sc->stsc_count; i++) {
2395 unsigned count, chunk_count;
2397 chunk_samples = sc->stsc_data[i].count;
2398 if (i != sc->stsc_count - 1 &&
2399 sc->samples_per_frame && chunk_samples % sc->samples_per_frame) {
2400 av_log(mov->fc, AV_LOG_ERROR, "error unaligned chunk\n");
2404 if (sc->samples_per_frame >= 160) { // gsm
2405 count = chunk_samples / sc->samples_per_frame;
2406 } else if (sc->samples_per_frame > 1) {
2407 unsigned samples = (1024/sc->samples_per_frame)*sc->samples_per_frame;
2408 count = (chunk_samples+samples-1) / samples;
2410 count = (chunk_samples+1023) / 1024;
2413 if (i < sc->stsc_count - 1)
2414 chunk_count = sc->stsc_data[i+1].first - sc->stsc_data[i].first;
2416 chunk_count = sc->chunk_count - (sc->stsc_data[i].first - 1);
2417 total += chunk_count * count;
2420 av_dlog(mov->fc, "chunk count %d\n", total);
2421 if (total >= UINT_MAX / sizeof(*st->index_entries) - st->nb_index_entries)
2423 if (av_reallocp_array(&st->index_entries,
2424 st->nb_index_entries + total,
2425 sizeof(*st->index_entries)) < 0) {
2426 st->nb_index_entries = 0;
2429 st->index_entries_allocated_size = (st->nb_index_entries + total) * sizeof(*st->index_entries);
2432 for (i = 0; i < sc->chunk_count; i++) {
2433 current_offset = sc->chunk_offsets[i];
2434 if (stsc_index + 1 < sc->stsc_count &&
2435 i + 1 == sc->stsc_data[stsc_index + 1].first)
2437 chunk_samples = sc->stsc_data[stsc_index].count;
2439 while (chunk_samples > 0) {
2441 unsigned size, samples;
2443 if (sc->samples_per_frame >= 160) { // gsm
2444 samples = sc->samples_per_frame;
2445 size = sc->bytes_per_frame;
2447 if (sc->samples_per_frame > 1) {
2448 samples = FFMIN((1024 / sc->samples_per_frame)*
2449 sc->samples_per_frame, chunk_samples);
2450 size = (samples / sc->samples_per_frame) * sc->bytes_per_frame;
2452 samples = FFMIN(1024, chunk_samples);
2453 size = samples * sc->sample_size;
2457 if (st->nb_index_entries >= total) {
2458 av_log(mov->fc, AV_LOG_ERROR, "wrong chunk count %d\n", total);
2461 e = &st->index_entries[st->nb_index_entries++];
2462 e->pos = current_offset;
2463 e->timestamp = current_dts;
2465 e->min_distance = 0;
2466 e->flags = AVINDEX_KEYFRAME;
2467 av_dlog(mov->fc, "AVIndex stream %d, chunk %d, offset %"PRIx64", dts %"PRId64", "
2468 "size %d, duration %d\n", st->index, i, current_offset, current_dts,
2471 current_offset += size;
2472 current_dts += samples;
2473 chunk_samples -= samples;
2479 static int mov_open_dref(AVIOContext **pb, const char *src, MOVDref *ref,
2480 AVIOInterruptCB *int_cb, int use_absolute_path, AVFormatContext *fc)
2482 /* try relative path, we do not try the absolute because it can leak information about our
2483 system to an attacker */
2484 if (ref->nlvl_to > 0 && ref->nlvl_from > 0) {
2485 char filename[1024];
2486 const char *src_path;
2489 /* find a source dir */
2490 src_path = strrchr(src, '/');
2496 /* find a next level down to target */
2497 for (i = 0, l = strlen(ref->path) - 1; l >= 0; l--)
2498 if (ref->path[l] == '/') {
2499 if (i == ref->nlvl_to - 1)
2505 /* compose filename if next level down to target was found */
2506 if (i == ref->nlvl_to - 1 && src_path - src < sizeof(filename)) {
2507 memcpy(filename, src, src_path - src);
2508 filename[src_path - src] = 0;
2510 for (i = 1; i < ref->nlvl_from; i++)
2511 av_strlcat(filename, "../", 1024);
2513 av_strlcat(filename, ref->path + l + 1, 1024);
2515 if (!avio_open2(pb, filename, AVIO_FLAG_READ, int_cb, NULL))
2518 } else if (use_absolute_path) {
2519 av_log(fc, AV_LOG_WARNING, "Using absolute path on user request, "
2520 "this is a possible security issue\n");
2521 if (!avio_open2(pb, ref->path, AVIO_FLAG_READ, int_cb, NULL))
2525 return AVERROR(ENOENT);
2528 static void fix_timescale(MOVContext *c, MOVStreamContext *sc)
2530 if (sc->time_scale <= 0) {
2531 av_log(c->fc, AV_LOG_WARNING, "stream %d, timescale not set\n", sc->ffindex);
2532 sc->time_scale = c->time_scale;
2533 if (sc->time_scale <= 0)
2538 static int mov_read_trak(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2541 MOVStreamContext *sc;
2544 st = avformat_new_stream(c->fc, NULL);
2545 if (!st) return AVERROR(ENOMEM);
2546 st->id = c->fc->nb_streams;
2547 sc = av_mallocz(sizeof(MOVStreamContext));
2548 if (!sc) return AVERROR(ENOMEM);
2551 st->codec->codec_type = AVMEDIA_TYPE_DATA;
2552 sc->ffindex = st->index;
2554 if ((ret = mov_read_default(c, pb, atom)) < 0)
2558 if (sc->chunk_count && (!sc->stts_count || !sc->stsc_count ||
2559 (!sc->sample_size && !sc->sample_count))) {
2560 av_log(c->fc, AV_LOG_ERROR, "stream %d, missing mandatory atoms, broken header\n",
2565 fix_timescale(c, sc);
2567 avpriv_set_pts_info(st, 64, 1, sc->time_scale);
2569 mov_build_index(c, st);
2571 if (sc->dref_id-1 < sc->drefs_count && sc->drefs[sc->dref_id-1].path) {
2572 MOVDref *dref = &sc->drefs[sc->dref_id - 1];
2573 if (mov_open_dref(&sc->pb, c->fc->filename, dref, &c->fc->interrupt_callback,
2574 c->use_absolute_path, c->fc) < 0)
2575 av_log(c->fc, AV_LOG_ERROR,
2576 "stream %d, error opening alias: path='%s', dir='%s', "
2577 "filename='%s', volume='%s', nlvl_from=%d, nlvl_to=%d\n",
2578 st->index, dref->path, dref->dir, dref->filename,
2579 dref->volume, dref->nlvl_from, dref->nlvl_to);
2582 sc->pb_is_copied = 1;
2585 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
2586 if (!st->sample_aspect_ratio.num &&
2587 (st->codec->width != sc->width || st->codec->height != sc->height)) {
2588 st->sample_aspect_ratio = av_d2q(((double)st->codec->height * sc->width) /
2589 ((double)st->codec->width * sc->height), INT_MAX);
2592 #if FF_API_R_FRAME_RATE
2593 if (sc->stts_count == 1 || (sc->stts_count == 2 && sc->stts_data[1].count == 1))
2594 av_reduce(&st->r_frame_rate.num, &st->r_frame_rate.den,
2595 sc->time_scale, sc->stts_data[0].duration, INT_MAX);
2599 // done for ai5q, ai52, ai55, ai1q, ai12 and ai15.
2600 if (!st->codec->extradata_size && st->codec->codec_id == AV_CODEC_ID_H264 &&
2601 TAG_IS_AVCI(st->codec->codec_tag)) {
2602 ret = ff_generate_avci_extradata(st);
2607 switch (st->codec->codec_id) {
2608 #if CONFIG_H261_DECODER
2609 case AV_CODEC_ID_H261:
2611 #if CONFIG_H263_DECODER
2612 case AV_CODEC_ID_H263:
2614 #if CONFIG_MPEG4_DECODER
2615 case AV_CODEC_ID_MPEG4:
2617 st->codec->width = 0; /* let decoder init width/height */
2618 st->codec->height= 0;
2622 /* Do not need those anymore. */
2623 av_freep(&sc->chunk_offsets);
2624 av_freep(&sc->stsc_data);
2625 av_freep(&sc->sample_sizes);
2626 av_freep(&sc->keyframes);
2627 av_freep(&sc->stts_data);
2628 av_freep(&sc->stps_data);
2629 av_freep(&sc->rap_group);
2634 static int mov_read_ilst(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2637 c->itunes_metadata = 1;
2638 ret = mov_read_default(c, pb, atom);
2639 c->itunes_metadata = 0;
2643 static int mov_read_custom_2plus(MOVContext *c, AVIOContext *pb, int size)
2645 int64_t end = avio_tell(pb) + size;
2646 uint8_t *key = NULL, *val = NULL;
2649 MOVStreamContext *sc;
2651 if (c->fc->nb_streams < 1)
2653 st = c->fc->streams[c->fc->nb_streams-1];
2656 for (i = 0; i < 2; i++) {
2660 if (end - avio_tell(pb) <= 12)
2663 len = avio_rb32(pb);
2664 tag = avio_rl32(pb);
2665 avio_skip(pb, 4); // flags
2667 if (len < 12 || len - 12 > end - avio_tell(pb))
2671 if (tag == MKTAG('n', 'a', 'm', 'e'))
2673 else if (tag == MKTAG('d', 'a', 't', 'a') && len > 4) {
2680 *p = av_malloc(len + 1);
2683 avio_read(pb, *p, len);
2688 if (strcmp(key, "iTunSMPB") == 0) {
2689 int priming, remainder, samples;
2690 if(sscanf(val, "%*X %X %X %X", &priming, &remainder, &samples) == 3){
2691 if(priming>0 && priming<16384)
2692 sc->start_pad = priming;
2695 if (strcmp(key, "cdec") != 0) {
2696 av_dict_set(&c->fc->metadata, key, val,
2697 AV_DICT_DONT_STRDUP_KEY | AV_DICT_DONT_STRDUP_VAL);
2702 avio_seek(pb, end, SEEK_SET);
2708 static int mov_read_custom(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2710 int64_t end = avio_tell(pb) + atom.size;
2716 len = avio_rb32(pb);
2717 tag = avio_rl32(pb);
2719 if (len > atom.size)
2722 if (tag == MKTAG('m', 'e', 'a', 'n') && len > 12) {
2723 uint8_t domain[128];
2726 avio_skip(pb, 4); // flags
2729 domain_len = avio_get_str(pb, len, domain, sizeof(domain));
2730 avio_skip(pb, len - domain_len);
2731 return mov_read_custom_2plus(c, pb, end - avio_tell(pb));
2735 av_log(c->fc, AV_LOG_VERBOSE,
2736 "Unhandled or malformed custom metadata of size %"PRId64"\n", atom.size);
2740 static int mov_read_meta(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2742 while (atom.size > 8) {
2743 uint32_t tag = avio_rl32(pb);
2745 if (tag == MKTAG('h','d','l','r')) {
2746 avio_seek(pb, -8, SEEK_CUR);
2748 return mov_read_default(c, pb, atom);
2754 static int mov_read_tkhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2759 int64_t disp_transform[2];
2760 int display_matrix[3][3];
2762 MOVStreamContext *sc;
2766 if (c->fc->nb_streams < 1)
2768 st = c->fc->streams[c->fc->nb_streams-1];
2771 version = avio_r8(pb);
2772 flags = avio_rb24(pb);
2773 st->disposition |= (flags & MOV_TKHD_FLAG_ENABLED) ? AV_DISPOSITION_DEFAULT : 0;
2779 avio_rb32(pb); /* creation time */
2780 avio_rb32(pb); /* modification time */
2782 st->id = (int)avio_rb32(pb); /* track id (NOT 0 !)*/
2783 avio_rb32(pb); /* reserved */
2785 /* highlevel (considering edits) duration in movie timebase */
2786 (version == 1) ? avio_rb64(pb) : avio_rb32(pb);
2787 avio_rb32(pb); /* reserved */
2788 avio_rb32(pb); /* reserved */
2790 avio_rb16(pb); /* layer */
2791 avio_rb16(pb); /* alternate group */
2792 avio_rb16(pb); /* volume */
2793 avio_rb16(pb); /* reserved */
2795 //read in the display matrix (outlined in ISO 14496-12, Section 6.2.2)
2796 // they're kept in fixed point format through all calculations
2797 // save u,v,z to store the whole matrix in the AV_PKT_DATA_DISPLAYMATRIX
2798 // side data, but the scale factor is not needed to calculate aspect ratio
2799 for (i = 0; i < 3; i++) {
2800 display_matrix[i][0] = avio_rb32(pb); // 16.16 fixed point
2801 display_matrix[i][1] = avio_rb32(pb); // 16.16 fixed point
2802 display_matrix[i][2] = avio_rb32(pb); // 2.30 fixed point
2805 width = avio_rb32(pb); // 16.16 fixed point track width
2806 height = avio_rb32(pb); // 16.16 fixed point track height
2807 sc->width = width >> 16;
2808 sc->height = height >> 16;
2810 // save the matrix and add rotate metadata when it is not the default
2812 if (display_matrix[0][0] != (1 << 16) ||
2813 display_matrix[1][1] != (1 << 16) ||
2814 display_matrix[2][2] != (1 << 30) ||
2815 display_matrix[0][1] || display_matrix[0][2] ||
2816 display_matrix[1][0] || display_matrix[1][2] ||
2817 display_matrix[2][0] || display_matrix[2][1]) {
2821 av_freep(&sc->display_matrix);
2822 sc->display_matrix = av_malloc(sizeof(int32_t) * 9);
2823 if (!sc->display_matrix)
2824 return AVERROR(ENOMEM);
2826 for (i = 0; i < 3; i++)
2827 for (j = 0; j < 3; j++)
2828 sc->display_matrix[i * 3 + j] = display_matrix[j][i];
2830 rotate = av_display_rotation_get(sc->display_matrix);
2831 if (!isnan(rotate)) {
2832 char rotate_buf[64];
2834 if (rotate < 0) // for backward compatibility
2836 snprintf(rotate_buf, sizeof(rotate_buf), "%g", rotate);
2837 av_dict_set(&st->metadata, "rotate", rotate_buf, 0);
2841 // transform the display width/height according to the matrix
2842 // skip this if the display matrix is the default identity matrix
2843 // or if it is rotating the picture, ex iPhone 3GS
2844 // to keep the same scale, use [width height 1<<16]
2845 if (width && height &&
2846 ((display_matrix[0][0] != 65536 ||
2847 display_matrix[1][1] != 65536) &&
2848 !display_matrix[0][1] &&
2849 !display_matrix[1][0] &&
2850 !display_matrix[2][0] && !display_matrix[2][1])) {
2851 for (i = 0; i < 2; i++)
2853 (int64_t) width * display_matrix[0][i] +
2854 (int64_t) height * display_matrix[1][i] +
2855 ((int64_t) display_matrix[2][i] << 16);
2857 //sample aspect ratio is new width/height divided by old width/height
2858 st->sample_aspect_ratio = av_d2q(
2859 ((double) disp_transform[0] * height) /
2860 ((double) disp_transform[1] * width), INT_MAX);
2865 static int mov_read_tfhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2867 MOVFragment *frag = &c->fragment;
2868 MOVTrackExt *trex = NULL;
2869 MOVFragmentIndex* index = NULL;
2870 int flags, track_id, i;
2872 avio_r8(pb); /* version */
2873 flags = avio_rb24(pb);
2875 track_id = avio_rb32(pb);
2877 return AVERROR_INVALIDDATA;
2878 frag->track_id = track_id;
2879 for (i = 0; i < c->trex_count; i++)
2880 if (c->trex_data[i].track_id == frag->track_id) {
2881 trex = &c->trex_data[i];
2885 av_log(c->fc, AV_LOG_ERROR, "could not find corresponding trex\n");
2886 return AVERROR_INVALIDDATA;
2888 for (i = 0; i < c->fragment_index_count; i++) {
2889 MOVFragmentIndex* candidate = c->fragment_index_data[i];
2890 if (candidate->track_id == frag->track_id) {
2891 av_log(c->fc, AV_LOG_DEBUG,
2892 "found fragment index for track %u\n", frag->track_id);
2898 frag->base_data_offset = flags & MOV_TFHD_BASE_DATA_OFFSET ?
2899 avio_rb64(pb) : flags & MOV_TFHD_DEFAULT_BASE_IS_MOOF ?
2900 frag->moof_offset : frag->implicit_offset;
2901 frag->stsd_id = flags & MOV_TFHD_STSD_ID ? avio_rb32(pb) : trex->stsd_id;
2903 frag->duration = flags & MOV_TFHD_DEFAULT_DURATION ?
2904 avio_rb32(pb) : trex->duration;
2905 frag->size = flags & MOV_TFHD_DEFAULT_SIZE ?
2906 avio_rb32(pb) : trex->size;
2907 frag->flags = flags & MOV_TFHD_DEFAULT_FLAGS ?
2908 avio_rb32(pb) : trex->flags;
2909 frag->time = AV_NOPTS_VALUE;
2912 for (i = index->current_item; i < index->item_count; i++) {
2913 if (frag->implicit_offset == index->items[i].moof_offset) {
2914 av_log(c->fc, AV_LOG_DEBUG, "found fragment index entry "
2915 "for track %u and moof_offset %"PRId64"\n",
2916 frag->track_id, index->items[i].moof_offset);
2917 frag->time = index->items[i].time;
2918 index->current_item = i + 1;
2923 av_log(c->fc, AV_LOG_WARNING, "track %u has a fragment index "
2924 "but it doesn't have an (in-order) entry for moof_offset "
2925 "%"PRId64"\n", frag->track_id, frag->implicit_offset);
2928 av_dlog(c->fc, "frag flags 0x%x\n", frag->flags);
2932 static int mov_read_chap(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2934 c->chapter_track = avio_rb32(pb);
2938 static int mov_read_trex(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2943 if ((uint64_t)c->trex_count+1 >= UINT_MAX / sizeof(*c->trex_data))
2944 return AVERROR_INVALIDDATA;
2945 if ((err = av_reallocp_array(&c->trex_data, c->trex_count + 1,
2946 sizeof(*c->trex_data))) < 0) {
2951 c->fc->duration = AV_NOPTS_VALUE; // the duration from mvhd is not representing the whole file when fragments are used.
2953 trex = &c->trex_data[c->trex_count++];
2954 avio_r8(pb); /* version */
2955 avio_rb24(pb); /* flags */
2956 trex->track_id = avio_rb32(pb);
2957 trex->stsd_id = avio_rb32(pb);
2958 trex->duration = avio_rb32(pb);
2959 trex->size = avio_rb32(pb);
2960 trex->flags = avio_rb32(pb);
2964 static int mov_read_tfdt(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2966 MOVFragment *frag = &c->fragment;
2967 AVStream *st = NULL;
2968 MOVStreamContext *sc;
2971 for (i = 0; i < c->fc->nb_streams; i++) {
2972 if (c->fc->streams[i]->id == frag->track_id) {
2973 st = c->fc->streams[i];
2978 av_log(c->fc, AV_LOG_ERROR, "could not find corresponding track id %d\n", frag->track_id);
2979 return AVERROR_INVALIDDATA;
2982 if (sc->pseudo_stream_id + 1 != frag->stsd_id)
2984 version = avio_r8(pb);
2985 avio_rb24(pb); /* flags */
2987 sc->track_end = avio_rb64(pb);
2989 sc->track_end = avio_rb32(pb);
2994 static int mov_read_trun(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2996 MOVFragment *frag = &c->fragment;
2997 AVStream *st = NULL;
2998 MOVStreamContext *sc;
3002 int data_offset = 0;
3003 unsigned entries, first_sample_flags = frag->flags;
3004 int flags, distance, i, found_keyframe = 0, err;
3006 for (i = 0; i < c->fc->nb_streams; i++) {
3007 if (c->fc->streams[i]->id == frag->track_id) {
3008 st = c->fc->streams[i];
3013 av_log(c->fc, AV_LOG_ERROR, "could not find corresponding track id %d\n", frag->track_id);
3014 return AVERROR_INVALIDDATA;
3017 if (sc->pseudo_stream_id+1 != frag->stsd_id && sc->pseudo_stream_id != -1)
3019 avio_r8(pb); /* version */
3020 flags = avio_rb24(pb);
3021 entries = avio_rb32(pb);
3022 av_dlog(c->fc, "flags 0x%x entries %d\n", flags, entries);
3024 /* Always assume the presence of composition time offsets.
3025 * Without this assumption, for instance, we cannot deal with a track in fragmented movies that meet the following.
3026 * 1) in the initial movie, there are no samples.
3027 * 2) in the first movie fragment, there is only one sample without composition time offset.
3028 * 3) in the subsequent movie fragments, there are samples with composition time offset. */
3029 if (!sc->ctts_count && sc->sample_count)
3031 /* Complement ctts table if moov atom doesn't have ctts atom. */
3032 ctts_data = av_realloc(NULL, sizeof(*sc->ctts_data));
3034 return AVERROR(ENOMEM);
3035 sc->ctts_data = ctts_data;
3036 sc->ctts_data[sc->ctts_count].count = sc->sample_count;
3037 sc->ctts_data[sc->ctts_count].duration = 0;
3040 if ((uint64_t)entries+sc->ctts_count >= UINT_MAX/sizeof(*sc->ctts_data))
3041 return AVERROR_INVALIDDATA;
3042 if ((err = av_reallocp_array(&sc->ctts_data, entries + sc->ctts_count,
3043 sizeof(*sc->ctts_data))) < 0) {
3047 if (flags & MOV_TRUN_DATA_OFFSET) data_offset = avio_rb32(pb);
3048 if (flags & MOV_TRUN_FIRST_SAMPLE_FLAGS) first_sample_flags = avio_rb32(pb);
3049 dts = sc->track_end - sc->time_offset;
3050 offset = frag->base_data_offset + data_offset;
3052 av_dlog(c->fc, "first sample flags 0x%x\n", first_sample_flags);
3053 for (i = 0; i < entries && !pb->eof_reached; i++) {
3054 unsigned sample_size = frag->size;
3055 int sample_flags = i ? frag->flags : first_sample_flags;
3056 unsigned sample_duration = frag->duration;
3059 if (flags & MOV_TRUN_SAMPLE_DURATION) sample_duration = avio_rb32(pb);
3060 if (flags & MOV_TRUN_SAMPLE_SIZE) sample_size = avio_rb32(pb);
3061 if (flags & MOV_TRUN_SAMPLE_FLAGS) sample_flags = avio_rb32(pb);
3062 sc->ctts_data[sc->ctts_count].count = 1;
3063 sc->ctts_data[sc->ctts_count].duration = (flags & MOV_TRUN_SAMPLE_CTS) ?
3065 mov_update_dts_shift(sc, sc->ctts_data[sc->ctts_count].duration);
3066 if (frag->time != AV_NOPTS_VALUE) {
3067 if (c->use_mfra_for == FF_MOV_FLAG_MFRA_PTS) {
3068 int64_t pts = frag->time;
3069 av_log(c->fc, AV_LOG_DEBUG, "found frag time %"PRId64
3070 " sc->dts_shift %d ctts.duration %d"
3071 " sc->time_offset %"PRId64" flags & MOV_TRUN_SAMPLE_CTS %d\n", pts,
3072 sc->dts_shift, sc->ctts_data[sc->ctts_count].duration,
3073 sc->time_offset, flags & MOV_TRUN_SAMPLE_CTS);
3074 dts = pts - sc->dts_shift;
3075 if (flags & MOV_TRUN_SAMPLE_CTS) {
3076 dts -= sc->ctts_data[sc->ctts_count].duration;
3078 dts -= sc->time_offset;
3080 av_log(c->fc, AV_LOG_DEBUG, "calculated into dts %"PRId64"\n", dts);
3083 av_log(c->fc, AV_LOG_DEBUG, "found frag time %"PRId64
3084 ", using it for dts\n", dts);
3086 frag->time = AV_NOPTS_VALUE;
3089 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
3091 else if (!found_keyframe)
3092 keyframe = found_keyframe =
3093 !(sample_flags & (MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC |
3094 MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES));
3097 av_add_index_entry(st, offset, dts, sample_size, distance,
3098 keyframe ? AVINDEX_KEYFRAME : 0);
3099 av_dlog(c->fc, "AVIndex stream %d, sample %d, offset %"PRIx64", dts %"PRId64", "
3100 "size %d, distance %d, keyframe %d\n", st->index, sc->sample_count+i,
3101 offset, dts, sample_size, distance, keyframe);
3103 dts += sample_duration;
3104 offset += sample_size;
3105 sc->data_size += sample_size;
3106 sc->duration_for_fps += sample_duration;
3107 sc->nb_frames_for_fps ++;
3110 if (pb->eof_reached)
3113 frag->implicit_offset = offset;
3114 st->duration = sc->track_end = dts + sc->time_offset;
3118 /* this atom should be null (from specs), but some buggy files put the 'moov' atom inside it... */
3119 /* like the files created with Adobe Premiere 5.0, for samples see */
3120 /* http://graphics.tudelft.nl/~wouter/publications/soundtests/ */
3121 static int mov_read_wide(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3126 return 0; /* continue */
3127 if (avio_rb32(pb) != 0) { /* 0 sized mdat atom... use the 'wide' atom size */
3128 avio_skip(pb, atom.size - 4);
3131 atom.type = avio_rl32(pb);
3133 if (atom.type != MKTAG('m','d','a','t')) {
3134 avio_skip(pb, atom.size);
3137 err = mov_read_mdat(c, pb, atom);
3141 static int mov_read_cmov(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3146 uint8_t *moov_data; /* uncompressed data */
3147 long cmov_len, moov_len;
3150 avio_rb32(pb); /* dcom atom */
3151 if (avio_rl32(pb) != MKTAG('d','c','o','m'))
3152 return AVERROR_INVALIDDATA;
3153 if (avio_rl32(pb) != MKTAG('z','l','i','b')) {
3154 av_log(c->fc, AV_LOG_ERROR, "unknown compression for cmov atom !\n");
3155 return AVERROR_INVALIDDATA;
3157 avio_rb32(pb); /* cmvd atom */
3158 if (avio_rl32(pb) != MKTAG('c','m','v','d'))
3159 return AVERROR_INVALIDDATA;
3160 moov_len = avio_rb32(pb); /* uncompressed size */
3161 cmov_len = atom.size - 6 * 4;
3163 cmov_data = av_malloc(cmov_len);
3165 return AVERROR(ENOMEM);
3166 moov_data = av_malloc(moov_len);
3169 return AVERROR(ENOMEM);
3171 avio_read(pb, cmov_data, cmov_len);
3172 if (uncompress (moov_data, (uLongf *) &moov_len, (const Bytef *)cmov_data, cmov_len) != Z_OK)
3173 goto free_and_return;
3174 if (ffio_init_context(&ctx, moov_data, moov_len, 0, NULL, NULL, NULL, NULL) != 0)
3175 goto free_and_return;
3176 atom.type = MKTAG('m','o','o','v');
3177 atom.size = moov_len;
3178 ret = mov_read_default(c, &ctx, atom);
3184 av_log(c->fc, AV_LOG_ERROR, "this file requires zlib support compiled in\n");
3185 return AVERROR(ENOSYS);
3189 /* edit list atom */
3190 static int mov_read_elst(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3192 MOVStreamContext *sc;
3193 int i, edit_count, version, edit_start_index = 0;
3194 int unsupported = 0;
3196 if (c->fc->nb_streams < 1 || c->ignore_editlist)
3198 sc = c->fc->streams[c->fc->nb_streams-1]->priv_data;
3200 version = avio_r8(pb); /* version */
3201 avio_rb24(pb); /* flags */
3202 edit_count = avio_rb32(pb); /* entries */
3204 if ((uint64_t)edit_count*12+8 > atom.size)
3205 return AVERROR_INVALIDDATA;
3207 av_dlog(c->fc, "track[%i].edit_count = %i\n", c->fc->nb_streams-1, edit_count);
3208 for (i=0; i<edit_count; i++){
3213 duration = avio_rb64(pb);
3214 time = avio_rb64(pb);
3216 duration = avio_rb32(pb); /* segment duration */
3217 time = (int32_t)avio_rb32(pb); /* media time */
3219 rate = avio_rb32(pb);
3220 if (i == 0 && time == -1) {
3221 sc->empty_duration = duration;
3222 edit_start_index = 1;
3223 } else if (i == edit_start_index && time >= 0)
3224 sc->start_time = time;
3228 av_dlog(c->fc, "duration=%"PRId64" time=%"PRId64" rate=%f\n",
3229 duration, time, rate / 65536.0);
3233 av_log(c->fc, AV_LOG_WARNING, "multiple edit list entries, "
3234 "a/v desync might occur, patch welcome\n");
3239 static int mov_read_tmcd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3241 MOVStreamContext *sc;
3243 if (c->fc->nb_streams < 1)
3244 return AVERROR_INVALIDDATA;
3245 sc = c->fc->streams[c->fc->nb_streams - 1]->priv_data;
3246 sc->timecode_track = avio_rb32(pb);
3250 static int mov_read_uuid(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3254 static const uint8_t uuid_isml_manifest[] = {
3255 0xa5, 0xd4, 0x0b, 0x30, 0xe8, 0x14, 0x11, 0xdd,
3256 0xba, 0x2f, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66
3259 if (atom.size < sizeof(uuid) || atom.size == INT64_MAX)
3260 return AVERROR_INVALIDDATA;
3262 ret = avio_read(pb, uuid, sizeof(uuid));
3265 } else if (ret != sizeof(uuid)) {
3266 return AVERROR_INVALIDDATA;
3268 if (!memcmp(uuid, uuid_isml_manifest, sizeof(uuid))) {
3269 uint8_t *buffer, *ptr;
3271 size_t len = atom.size - sizeof(uuid);
3274 return AVERROR_INVALIDDATA;
3276 ret = avio_skip(pb, 4); // zeroes
3279 buffer = av_mallocz(len + 1);
3281 return AVERROR(ENOMEM);
3283 ret = avio_read(pb, buffer, len);
3287 } else if (ret != len) {
3289 return AVERROR_INVALIDDATA;
3293 while ((ptr = av_stristr(ptr, "systemBitrate=\""))) {
3294 ptr += sizeof("systemBitrate=\"") - 1;
3295 c->bitrates_count++;
3296 c->bitrates = av_realloc_f(c->bitrates, c->bitrates_count, sizeof(*c->bitrates));
3298 c->bitrates_count = 0;
3300 return AVERROR(ENOMEM);
3303 ret = strtol(ptr, &endptr, 10);
3304 if (ret < 0 || errno || *endptr != '"') {
3305 c->bitrates[c->bitrates_count - 1] = 0;
3307 c->bitrates[c->bitrates_count - 1] = ret;
3316 static int mov_read_free(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3319 uint8_t content[16];
3324 ret = avio_read(pb, content, FFMIN(sizeof(content), atom.size));
3330 && !memcmp(content, "Anevia\x1A\x1A", 8)
3331 && c->use_mfra_for == FF_MOV_FLAG_MFRA_AUTO) {
3332 c->use_mfra_for = FF_MOV_FLAG_MFRA_PTS;
3338 static const MOVParseTableEntry mov_default_parse_table[] = {
3339 { MKTAG('A','C','L','R'), mov_read_avid },
3340 { MKTAG('A','P','R','G'), mov_read_avid },
3341 { MKTAG('A','A','L','P'), mov_read_avid },
3342 { MKTAG('A','R','E','S'), mov_read_ares },
3343 { MKTAG('a','v','s','s'), mov_read_avss },
3344 { MKTAG('c','h','p','l'), mov_read_chpl },
3345 { MKTAG('c','o','6','4'), mov_read_stco },
3346 { MKTAG('c','o','l','r'), mov_read_colr },
3347 { MKTAG('c','t','t','s'), mov_read_ctts }, /* composition time to sample */
3348 { MKTAG('d','i','n','f'), mov_read_default },
3349 { MKTAG('d','r','e','f'), mov_read_dref },
3350 { MKTAG('e','d','t','s'), mov_read_default },
3351 { MKTAG('e','l','s','t'), mov_read_elst },
3352 { MKTAG('e','n','d','a'), mov_read_enda },
3353 { MKTAG('f','i','e','l'), mov_read_fiel },
3354 { MKTAG('f','t','y','p'), mov_read_ftyp },
3355 { MKTAG('g','l','b','l'), mov_read_glbl },
3356 { MKTAG('h','d','l','r'), mov_read_hdlr },
3357 { MKTAG('i','l','s','t'), mov_read_ilst },
3358 { MKTAG('j','p','2','h'), mov_read_jp2h },
3359 { MKTAG('m','d','a','t'), mov_read_mdat },
3360 { MKTAG('m','d','h','d'), mov_read_mdhd },
3361 { MKTAG('m','d','i','a'), mov_read_default },
3362 { MKTAG('m','e','t','a'), mov_read_meta },
3363 { MKTAG('m','i','n','f'), mov_read_default },
3364 { MKTAG('m','o','o','f'), mov_read_moof },
3365 { MKTAG('m','o','o','v'), mov_read_moov },
3366 { MKTAG('m','v','e','x'), mov_read_default },
3367 { MKTAG('m','v','h','d'), mov_read_mvhd },
3368 { MKTAG('S','M','I',' '), mov_read_svq3 },
3369 { MKTAG('a','l','a','c'), mov_read_alac }, /* alac specific atom */
3370 { MKTAG('a','v','c','C'), mov_read_glbl },
3371 { MKTAG('p','a','s','p'), mov_read_pasp },
3372 { MKTAG('s','t','b','l'), mov_read_default },
3373 { MKTAG('s','t','c','o'), mov_read_stco },
3374 { MKTAG('s','t','p','s'), mov_read_stps },
3375 { MKTAG('s','t','r','f'), mov_read_strf },
3376 { MKTAG('s','t','s','c'), mov_read_stsc },
3377 { MKTAG('s','t','s','d'), mov_read_stsd }, /* sample description */
3378 { MKTAG('s','t','s','s'), mov_read_stss }, /* sync sample */
3379 { MKTAG('s','t','s','z'), mov_read_stsz }, /* sample size */
3380 { MKTAG('s','t','t','s'), mov_read_stts },
3381 { MKTAG('s','t','z','2'), mov_read_stsz }, /* compact sample size */
3382 { MKTAG('t','k','h','d'), mov_read_tkhd }, /* track header */
3383 { MKTAG('t','f','d','t'), mov_read_tfdt },
3384 { MKTAG('t','f','h','d'), mov_read_tfhd }, /* track fragment header */
3385 { MKTAG('t','r','a','k'), mov_read_trak },
3386 { MKTAG('t','r','a','f'), mov_read_default },
3387 { MKTAG('t','r','e','f'), mov_read_default },
3388 { MKTAG('t','m','c','d'), mov_read_tmcd },
3389 { MKTAG('c','h','a','p'), mov_read_chap },
3390 { MKTAG('t','r','e','x'), mov_read_trex },
3391 { MKTAG('t','r','u','n'), mov_read_trun },
3392 { MKTAG('u','d','t','a'), mov_read_default },
3393 { MKTAG('w','a','v','e'), mov_read_wave },
3394 { MKTAG('e','s','d','s'), mov_read_esds },
3395 { MKTAG('d','a','c','3'), mov_read_dac3 }, /* AC-3 info */
3396 { MKTAG('d','e','c','3'), mov_read_dec3 }, /* EAC-3 info */
3397 { MKTAG('w','i','d','e'), mov_read_wide }, /* place holder */
3398 { MKTAG('w','f','e','x'), mov_read_wfex },
3399 { MKTAG('c','m','o','v'), mov_read_cmov },
3400 { MKTAG('c','h','a','n'), mov_read_chan }, /* channel layout */
3401 { MKTAG('d','v','c','1'), mov_read_dvc1 },
3402 { MKTAG('s','b','g','p'), mov_read_sbgp },
3403 { MKTAG('h','v','c','C'), mov_read_glbl },
3404 { MKTAG('u','u','i','d'), mov_read_uuid },
3405 { MKTAG('C','i','n', 0x8e), mov_read_targa_y216 },
3406 { MKTAG('f','r','e','e'), mov_read_free },
3407 { MKTAG('-','-','-','-'), mov_read_custom },
3411 static int mov_read_default(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3413 int64_t total_size = 0;
3417 if (c->atom_depth > 10) {
3418 av_log(c->fc, AV_LOG_ERROR, "Atoms too deeply nested\n");
3419 return AVERROR_INVALIDDATA;
3424 atom.size = INT64_MAX;
3425 while (total_size + 8 <= atom.size && !avio_feof(pb)) {
3426 int (*parse)(MOVContext*, AVIOContext*, MOVAtom) = NULL;
3429 if (atom.size >= 8) {
3430 a.size = avio_rb32(pb);
3431 a.type = avio_rl32(pb);
3432 if (a.type == MKTAG('f','r','e','e') &&
3436 uint32_t *type = (uint32_t *)buf + 1;
3437 avio_read(pb, buf, 8);
3438 avio_seek(pb, -8, SEEK_CUR);
3439 if (*type == MKTAG('m','v','h','d') ||
3440 *type == MKTAG('c','m','o','v')) {
3441 av_log(c->fc, AV_LOG_ERROR, "Detected moov in a free atom.\n");
3442 a.type = MKTAG('m','o','o','v');
3445 if (atom.type != MKTAG('r','o','o','t') &&
3446 atom.type != MKTAG('m','o','o','v'))
3448 if (a.type == MKTAG('t','r','a','k') || a.type == MKTAG('m','d','a','t'))
3450 av_log(c->fc, AV_LOG_ERROR, "Broken file, trak/mdat not at top-level\n");
3457 if (a.size == 1) { /* 64 bit extended size */
3458 a.size = avio_rb64(pb) - 8;
3462 av_dlog(c->fc, "type: %08x '%.4s' parent:'%.4s' sz: %"PRId64" %"PRId64" %"PRId64"\n",
3463 a.type, (char*)&a.type, (char*)&atom.type, a.size, total_size, atom.size);
3465 a.size = atom.size - total_size + 8;
3470 a.size = FFMIN(a.size, atom.size - total_size);
3472 for (i = 0; mov_default_parse_table[i].type; i++)
3473 if (mov_default_parse_table[i].type == a.type) {
3474 parse = mov_default_parse_table[i].parse;
3478 // container is user data
3479 if (!parse && (atom.type == MKTAG('u','d','t','a') ||
3480 atom.type == MKTAG('i','l','s','t')))
3481 parse = mov_read_udta_string;
3483 if (!parse) { /* skip leaf atoms data */
3484 avio_skip(pb, a.size);
3486 int64_t start_pos = avio_tell(pb);
3488 int err = parse(c, pb, a);
3493 if (c->found_moov && c->found_mdat &&
3494 ((!pb->seekable || c->fc->flags & AVFMT_FLAG_IGNIDX) ||
3495 start_pos + a.size == avio_size(pb))) {
3496 if (!pb->seekable || c->fc->flags & AVFMT_FLAG_IGNIDX)
3497 c->next_root_atom = start_pos + a.size;
3501 left = a.size - avio_tell(pb) + start_pos;
3502 if (left > 0) /* skip garbage at atom end */
3503 avio_skip(pb, left);
3504 else if (left < 0) {
3505 av_log(c->fc, AV_LOG_WARNING,
3506 "overread end of atom '%.4s' by %"PRId64" bytes\n",
3507 (char*)&a.type, -left);
3508 avio_seek(pb, left, SEEK_CUR);
3512 total_size += a.size;
3515 if (total_size < atom.size && atom.size < 0x7ffff)
3516 avio_skip(pb, atom.size - total_size);
3522 static int mov_probe(AVProbeData *p)
3527 int moov_offset = -1;
3529 /* check file header */
3532 /* ignore invalid offset */
3533 if ((offset + 8) > (unsigned int)p->buf_size)
3535 tag = AV_RL32(p->buf + offset + 4);
3537 /* check for obvious tags */
3538 case MKTAG('m','o','o','v'):
3539 moov_offset = offset + 4;
3540 case MKTAG('m','d','a','t'):
3541 case MKTAG('p','n','o','t'): /* detect movs with preview pics like ew.mov and april.mov */
3542 case MKTAG('u','d','t','a'): /* Packet Video PVAuthor adds this and a lot of more junk */
3543 case MKTAG('f','t','y','p'):
3544 if (AV_RB32(p->buf+offset) < 8 &&
3545 (AV_RB32(p->buf+offset) != 1 ||
3546 offset + 12 > (unsigned int)p->buf_size ||
3547 AV_RB64(p->buf+offset + 8) == 0)) {
3548 score = FFMAX(score, AVPROBE_SCORE_EXTENSION);
3549 } else if (tag == MKTAG('f','t','y','p') &&
3550 AV_RL32(p->buf + offset + 8) == MKTAG('j','p','2',' ')) {
3551 score = FFMAX(score, 5);
3553 score = AVPROBE_SCORE_MAX;
3555 offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
3557 /* those are more common words, so rate then a bit less */
3558 case MKTAG('e','d','i','w'): /* xdcam files have reverted first tags */
3559 case MKTAG('w','i','d','e'):
3560 case MKTAG('f','r','e','e'):
3561 case MKTAG('j','u','n','k'):
3562 case MKTAG('p','i','c','t'):
3563 score = FFMAX(score, AVPROBE_SCORE_MAX - 5);
3564 offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
3566 case MKTAG(0x82,0x82,0x7f,0x7d):
3567 case MKTAG('s','k','i','p'):
3568 case MKTAG('u','u','i','d'):
3569 case MKTAG('p','r','f','l'):
3570 /* if we only find those cause probedata is too small at least rate them */
3571 score = FFMAX(score, AVPROBE_SCORE_EXTENSION);
3572 offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
3575 offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
3578 if(score > AVPROBE_SCORE_MAX - 50 && moov_offset != -1) {
3579 /* moov atom in the header - we should make sure that this is not a
3580 * MOV-packed MPEG-PS */
3581 offset = moov_offset;
3583 while(offset < (p->buf_size - 16)){ /* Sufficient space */
3584 /* We found an actual hdlr atom */
3585 if(AV_RL32(p->buf + offset ) == MKTAG('h','d','l','r') &&
3586 AV_RL32(p->buf + offset + 8) == MKTAG('m','h','l','r') &&
3587 AV_RL32(p->buf + offset + 12) == MKTAG('M','P','E','G')){
3588 av_log(NULL, AV_LOG_WARNING, "Found media data tag MPEG indicating this is a MOV-packed MPEG-PS.\n");
3589 /* We found a media handler reference atom describing an
3590 * MPEG-PS-in-MOV, return a
3591 * low score to force expanding the probe window until
3592 * mpegps_probe finds what it needs */
3603 // must be done after parsing all trak because there's no order requirement
3604 static void mov_read_chapters(AVFormatContext *s)
3606 MOVContext *mov = s->priv_data;
3607 AVStream *st = NULL;
3608 MOVStreamContext *sc;
3612 for (i = 0; i < s->nb_streams; i++)
3613 if (s->streams[i]->id == mov->chapter_track) {
3618 av_log(s, AV_LOG_ERROR, "Referenced QT chapter track not found\n");
3622 st->discard = AVDISCARD_ALL;
3624 cur_pos = avio_tell(sc->pb);
3626 for (i = 0; i < st->nb_index_entries; i++) {
3627 AVIndexEntry *sample = &st->index_entries[i];
3628 int64_t end = i+1 < st->nb_index_entries ? st->index_entries[i+1].timestamp : st->duration;
3633 if (end < sample->timestamp) {
3634 av_log(s, AV_LOG_WARNING, "ignoring stream duration which is shorter than chapters\n");
3635 end = AV_NOPTS_VALUE;
3638 if (avio_seek(sc->pb, sample->pos, SEEK_SET) != sample->pos) {
3639 av_log(s, AV_LOG_ERROR, "Chapter %d not found in file\n", i);
3643 // the first two bytes are the length of the title
3644 len = avio_rb16(sc->pb);
3645 if (len > sample->size-2)
3647 title_len = 2*len + 1;
3648 if (!(title = av_mallocz(title_len)))
3651 // The samples could theoretically be in any encoding if there's an encd
3652 // atom following, but in practice are only utf-8 or utf-16, distinguished
3653 // instead by the presence of a BOM
3657 ch = avio_rb16(sc->pb);
3659 avio_get_str16be(sc->pb, len, title, title_len);
3660 else if (ch == 0xfffe)
3661 avio_get_str16le(sc->pb, len, title, title_len);
3664 if (len == 1 || len == 2)
3667 avio_get_str(sc->pb, INT_MAX, title + 2, len - 1);
3671 avpriv_new_chapter(s, i, st->time_base, sample->timestamp, end, title);
3675 avio_seek(sc->pb, cur_pos, SEEK_SET);
3678 static int parse_timecode_in_framenum_format(AVFormatContext *s, AVStream *st,
3679 uint32_t value, int flags)
3682 char buf[AV_TIMECODE_STR_SIZE];
3683 AVRational rate = {st->codec->time_base.den,
3684 st->codec->time_base.num};
3685 int ret = av_timecode_init(&tc, rate, flags, 0, s);
3688 av_dict_set(&st->metadata, "timecode",
3689 av_timecode_make_string(&tc, buf, value), 0);
3693 static int mov_read_timecode_track(AVFormatContext *s, AVStream *st)
3695 MOVStreamContext *sc = st->priv_data;
3697 int64_t cur_pos = avio_tell(sc->pb);
3700 if (!st->nb_index_entries)
3703 avio_seek(sc->pb, st->index_entries->pos, SEEK_SET);
3704 value = avio_rb32(s->pb);
3706 if (sc->tmcd_flags & 0x0001) flags |= AV_TIMECODE_FLAG_DROPFRAME;
3707 if (sc->tmcd_flags & 0x0002) flags |= AV_TIMECODE_FLAG_24HOURSMAX;
3708 if (sc->tmcd_flags & 0x0004) flags |= AV_TIMECODE_FLAG_ALLOWNEGATIVE;
3710 /* Assume Counter flag is set to 1 in tmcd track (even though it is likely
3711 * not the case) and thus assume "frame number format" instead of QT one.
3712 * No sample with tmcd track can be found with a QT timecode at the moment,
3713 * despite what the tmcd track "suggests" (Counter flag set to 0 means QT
3715 parse_timecode_in_framenum_format(s, st, value, flags);
3717 avio_seek(sc->pb, cur_pos, SEEK_SET);
3721 static int mov_read_close(AVFormatContext *s)
3723 MOVContext *mov = s->priv_data;
3726 for (i = 0; i < s->nb_streams; i++) {
3727 AVStream *st = s->streams[i];
3728 MOVStreamContext *sc = st->priv_data;
3730 av_freep(&sc->ctts_data);
3731 for (j = 0; j < sc->drefs_count; j++) {
3732 av_freep(&sc->drefs[j].path);
3733 av_freep(&sc->drefs[j].dir);
3735 av_freep(&sc->drefs);
3737 sc->drefs_count = 0;
3739 if (!sc->pb_is_copied)
3743 av_freep(&sc->chunk_offsets);
3744 av_freep(&sc->stsc_data);
3745 av_freep(&sc->sample_sizes);
3746 av_freep(&sc->keyframes);
3747 av_freep(&sc->stts_data);
3748 av_freep(&sc->stps_data);
3749 av_freep(&sc->rap_group);
3750 av_freep(&sc->display_matrix);
3753 if (mov->dv_demux) {
3754 avformat_free_context(mov->dv_fctx);
3755 mov->dv_fctx = NULL;
3758 av_freep(&mov->trex_data);
3759 av_freep(&mov->bitrates);
3761 for (i = 0; i < mov->fragment_index_count; i++) {
3762 MOVFragmentIndex* index = mov->fragment_index_data[i];
3763 av_freep(&index->items);
3764 av_freep(&mov->fragment_index_data[i]);
3766 av_freep(&mov->fragment_index_data);
3771 static int tmcd_is_referenced(AVFormatContext *s, int tmcd_id)
3775 for (i = 0; i < s->nb_streams; i++) {
3776 AVStream *st = s->streams[i];
3777 MOVStreamContext *sc = st->priv_data;
3779 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
3780 sc->timecode_track == tmcd_id)
3786 /* look for a tmcd track not referenced by any video track, and export it globally */
3787 static void export_orphan_timecode(AVFormatContext *s)
3791 for (i = 0; i < s->nb_streams; i++) {
3792 AVStream *st = s->streams[i];
3794 if (st->codec->codec_tag == MKTAG('t','m','c','d') &&
3795 !tmcd_is_referenced(s, i + 1)) {
3796 AVDictionaryEntry *tcr = av_dict_get(st->metadata, "timecode", NULL, 0);
3798 av_dict_set(&s->metadata, "timecode", tcr->value, 0);
3805 static int read_tfra(MOVContext *mov, AVIOContext *f)
3807 MOVFragmentIndex* index = NULL;
3808 int version, fieldlength, i, j, err;
3809 int64_t pos = avio_tell(f);
3810 uint32_t size = avio_rb32(f);
3811 if (avio_rb32(f) != MKBETAG('t', 'f', 'r', 'a')) {
3814 av_log(mov->fc, AV_LOG_VERBOSE, "found tfra\n");
3815 index = av_mallocz(sizeof(MOVFragmentIndex));
3817 return AVERROR(ENOMEM);
3819 mov->fragment_index_count++;
3820 if ((err = av_reallocp(&mov->fragment_index_data,
3821 mov->fragment_index_count *
3822 sizeof(MOVFragmentIndex*))) < 0) {
3826 mov->fragment_index_data[mov->fragment_index_count - 1] =
3829 version = avio_r8(f);
3831 index->track_id = avio_rb32(f);
3832 fieldlength = avio_rb32(f);
3833 index->item_count = avio_rb32(f);
3834 index->items = av_mallocz(
3835 index->item_count * sizeof(MOVFragmentIndexItem));
3836 if (!index->items) {
3837 return AVERROR(ENOMEM);
3839 for (i = 0; i < index->item_count; i++) {
3840 int64_t time, offset;
3842 time = avio_rb64(f);
3843 offset = avio_rb64(f);
3845 time = avio_rb32(f);
3846 offset = avio_rb32(f);
3848 index->items[i].time = time;
3849 index->items[i].moof_offset = offset;
3850 for (j = 0; j < ((fieldlength >> 4) & 3) + 1; j++)
3852 for (j = 0; j < ((fieldlength >> 2) & 3) + 1; j++)
3854 for (j = 0; j < ((fieldlength >> 0) & 3) + 1; j++)
3858 avio_seek(f, pos + size, SEEK_SET);
3862 static int mov_read_mfra(MOVContext *c, AVIOContext *f)
3864 int64_t stream_size = avio_size(f);
3865 int64_t original_pos = avio_tell(f);
3869 if ((seek_ret = avio_seek(f, stream_size - 4, SEEK_SET)) < 0) {
3873 mfra_size = avio_rb32(f);
3874 if (mfra_size < 0 || mfra_size > stream_size) {
3875 av_log(c->fc, AV_LOG_DEBUG, "doesn't look like mfra (unreasonable size)\n");
3878 if ((seek_ret = avio_seek(f, -mfra_size, SEEK_CUR)) < 0) {
3882 if (avio_rb32(f) != mfra_size) {
3883 av_log(c->fc, AV_LOG_DEBUG, "doesn't look like mfra (size mismatch)\n");
3886 if (avio_rb32(f) != MKBETAG('m', 'f', 'r', 'a')) {
3887 av_log(c->fc, AV_LOG_DEBUG, "doesn't look like mfra (tag mismatch)\n");
3891 av_log(c->fc, AV_LOG_VERBOSE, "stream has mfra\n");
3892 while (!read_tfra(c, f)) {
3896 seek_ret = avio_seek(f, original_pos, SEEK_SET);
3898 av_log(c->fc, AV_LOG_ERROR,
3899 "failed to seek back after looking for mfra\n");
3905 static int mov_read_header(AVFormatContext *s)
3907 MOVContext *mov = s->priv_data;
3908 AVIOContext *pb = s->pb;
3910 MOVAtom atom = { AV_RL32("root") };
3914 /* .mov and .mp4 aren't streamable anyway (only progressive download if moov is before mdat) */
3916 atom.size = avio_size(pb);
3918 atom.size = INT64_MAX;
3920 /* check MOV header */
3922 if (mov->moov_retry)
3923 avio_seek(pb, 0, SEEK_SET);
3924 if ((err = mov_read_default(mov, pb, atom)) < 0) {
3925 av_log(s, AV_LOG_ERROR, "error reading header\n");
3929 } while (pb->seekable && !mov->found_moov && !mov->moov_retry++);
3930 if (!mov->found_moov) {
3931 av_log(s, AV_LOG_ERROR, "moov atom not found\n");
3933 return AVERROR_INVALIDDATA;
3935 av_dlog(mov->fc, "on_parse_exit_offset=%"PRId64"\n", avio_tell(pb));
3938 if (mov->chapter_track > 0)
3939 mov_read_chapters(s);
3940 for (i = 0; i < s->nb_streams; i++)
3941 if (s->streams[i]->codec->codec_tag == AV_RL32("tmcd"))
3942 mov_read_timecode_track(s, s->streams[i]);
3945 /* copy timecode metadata from tmcd tracks to the related video streams */
3946 for (i = 0; i < s->nb_streams; i++) {
3947 AVStream *st = s->streams[i];
3948 MOVStreamContext *sc = st->priv_data;
3949 if (sc->timecode_track > 0) {
3950 AVDictionaryEntry *tcr;
3951 int tmcd_st_id = -1;
3953 for (j = 0; j < s->nb_streams; j++)
3954 if (s->streams[j]->id == sc->timecode_track)
3957 if (tmcd_st_id < 0 || tmcd_st_id == i)
3959 tcr = av_dict_get(s->streams[tmcd_st_id]->metadata, "timecode", NULL, 0);
3961 av_dict_set(&st->metadata, "timecode", tcr->value, 0);
3964 export_orphan_timecode(s);
3966 for (i = 0; i < s->nb_streams; i++) {
3967 AVStream *st = s->streams[i];
3968 MOVStreamContext *sc = st->priv_data;
3969 fix_timescale(mov, sc);
3970 if(st->codec->codec_type == AVMEDIA_TYPE_AUDIO && st->codec->codec_id == AV_CODEC_ID_AAC) {
3971 st->skip_samples = sc->start_pad;
3973 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && sc->nb_frames_for_fps > 0 && sc->duration_for_fps > 0)
3974 av_reduce(&st->avg_frame_rate.num, &st->avg_frame_rate.den,
3975 sc->time_scale*(int64_t)sc->nb_frames_for_fps, sc->duration_for_fps, INT_MAX);
3976 if (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
3977 if (st->codec->width <= 0 || st->codec->height <= 0) {
3978 st->codec->width = sc->width;
3979 st->codec->height = sc->height;
3981 if (st->codec->codec_id == AV_CODEC_ID_DVD_SUBTITLE) {
3982 if ((err = mov_rewrite_dvd_sub_extradata(st)) < 0)
3988 if (mov->trex_data) {
3989 for (i = 0; i < s->nb_streams; i++) {
3990 AVStream *st = s->streams[i];
3991 MOVStreamContext *sc = st->priv_data;
3992 if (st->duration > 0)
3993 st->codec->bit_rate = sc->data_size * 8 * sc->time_scale / st->duration;
3997 if (mov->use_mfra_for > 0) {
3998 for (i = 0; i < s->nb_streams; i++) {
3999 AVStream *st = s->streams[i];
4000 MOVStreamContext *sc = st->priv_data;
4001 if (sc->duration_for_fps > 0) {
4002 st->codec->bit_rate = sc->data_size * 8 * sc->time_scale /
4003 sc->duration_for_fps;
4008 for (i = 0; i < mov->bitrates_count && i < s->nb_streams; i++) {
4009 if (mov->bitrates[i]) {
4010 s->streams[i]->codec->bit_rate = mov->bitrates[i];
4014 ff_rfps_calculate(s);
4016 for (i = 0; i < s->nb_streams; i++) {
4017 AVStream *st = s->streams[i];
4018 MOVStreamContext *sc = st->priv_data;
4020 switch (st->codec->codec_type) {
4021 case AVMEDIA_TYPE_AUDIO:
4022 err = ff_replaygain_export(st, s->metadata);
4028 case AVMEDIA_TYPE_VIDEO:
4029 if (sc->display_matrix) {
4030 AVPacketSideData *sd, *tmp;
4032 tmp = av_realloc_array(st->side_data,
4033 st->nb_side_data + 1, sizeof(*tmp));
4035 return AVERROR(ENOMEM);
4037 st->side_data = tmp;
4040 sd = &st->side_data[st->nb_side_data - 1];
4041 sd->type = AV_PKT_DATA_DISPLAYMATRIX;
4042 sd->size = sizeof(int32_t) * 9;
4043 sd->data = (uint8_t*)sc->display_matrix;
4044 sc->display_matrix = NULL;
4053 static AVIndexEntry *mov_find_next_sample(AVFormatContext *s, AVStream **st)
4055 AVIndexEntry *sample = NULL;
4056 int64_t best_dts = INT64_MAX;
4058 for (i = 0; i < s->nb_streams; i++) {
4059 AVStream *avst = s->streams[i];
4060 MOVStreamContext *msc = avst->priv_data;
4061 if (msc->pb && msc->current_sample < avst->nb_index_entries) {
4062 AVIndexEntry *current_sample = &avst->index_entries[msc->current_sample];
4063 int64_t dts = av_rescale(current_sample->timestamp, AV_TIME_BASE, msc->time_scale);
4064 av_dlog(s, "stream %d, sample %d, dts %"PRId64"\n", i, msc->current_sample, dts);
4065 if (!sample || (!s->pb->seekable && current_sample->pos < sample->pos) ||
4067 ((msc->pb != s->pb && dts < best_dts) || (msc->pb == s->pb &&
4068 ((FFABS(best_dts - dts) <= AV_TIME_BASE && current_sample->pos < sample->pos) ||
4069 (FFABS(best_dts - dts) > AV_TIME_BASE && dts < best_dts)))))) {
4070 sample = current_sample;
4079 static int mov_read_packet(AVFormatContext *s, AVPacket *pkt)
4081 MOVContext *mov = s->priv_data;
4082 MOVStreamContext *sc;
4083 AVIndexEntry *sample;
4084 AVStream *st = NULL;
4088 sample = mov_find_next_sample(s, &st);
4090 mov->found_mdat = 0;
4091 if (!mov->next_root_atom)
4093 avio_seek(s->pb, mov->next_root_atom, SEEK_SET);
4094 mov->next_root_atom = 0;
4095 if (mov_read_default(mov, s->pb, (MOVAtom){ AV_RL32("root"), INT64_MAX }) < 0 ||
4098 av_dlog(s, "read fragments, offset 0x%"PRIx64"\n", avio_tell(s->pb));
4102 /* must be done just before reading, to avoid infinite loop on sample */
4103 sc->current_sample++;
4105 if (mov->next_root_atom) {
4106 sample->pos = FFMIN(sample->pos, mov->next_root_atom);
4107 sample->size = FFMIN(sample->size, (mov->next_root_atom - sample->pos));
4110 if (st->discard != AVDISCARD_ALL) {
4111 if (avio_seek(sc->pb, sample->pos, SEEK_SET) != sample->pos) {
4112 av_log(mov->fc, AV_LOG_ERROR, "stream %d, offset 0x%"PRIx64": partial file\n",
4113 sc->ffindex, sample->pos);
4114 return AVERROR_INVALIDDATA;
4116 ret = av_get_packet(sc->pb, pkt, sample->size);
4119 if (sc->has_palette) {
4122 pal = av_packet_new_side_data(pkt, AV_PKT_DATA_PALETTE, AVPALETTE_SIZE);
4124 av_log(mov->fc, AV_LOG_ERROR, "Cannot append palette to packet\n");
4126 memcpy(pal, sc->palette, AVPALETTE_SIZE);
4127 sc->has_palette = 0;
4130 #if CONFIG_DV_DEMUXER
4131 if (mov->dv_demux && sc->dv_audio_container) {
4132 avpriv_dv_produce_packet(mov->dv_demux, pkt, pkt->data, pkt->size, pkt->pos);
4135 ret = avpriv_dv_get_packet(mov->dv_demux, pkt);
4142 pkt->stream_index = sc->ffindex;
4143 pkt->dts = sample->timestamp;
4144 if (sc->ctts_data && sc->ctts_index < sc->ctts_count) {
4145 pkt->pts = pkt->dts + sc->dts_shift + sc->ctts_data[sc->ctts_index].duration;
4146 /* update ctts context */
4148 if (sc->ctts_index < sc->ctts_count &&
4149 sc->ctts_data[sc->ctts_index].count == sc->ctts_sample) {
4151 sc->ctts_sample = 0;
4154 pkt->dts = AV_NOPTS_VALUE;
4156 int64_t next_dts = (sc->current_sample < st->nb_index_entries) ?
4157 st->index_entries[sc->current_sample].timestamp : st->duration;
4158 pkt->duration = next_dts - pkt->dts;
4159 pkt->pts = pkt->dts;
4161 if (st->discard == AVDISCARD_ALL)
4163 pkt->flags |= sample->flags & AVINDEX_KEYFRAME ? AV_PKT_FLAG_KEY : 0;
4164 pkt->pos = sample->pos;
4165 av_dlog(s, "stream %d, pts %"PRId64", dts %"PRId64", pos 0x%"PRIx64", duration %d\n",
4166 pkt->stream_index, pkt->pts, pkt->dts, pkt->pos, pkt->duration);
4170 static int mov_seek_stream(AVFormatContext *s, AVStream *st, int64_t timestamp, int flags)
4172 MOVStreamContext *sc = st->priv_data;
4173 int sample, time_sample;
4176 sample = av_index_search_timestamp(st, timestamp, flags);
4177 av_dlog(s, "stream %d, timestamp %"PRId64", sample %d\n", st->index, timestamp, sample);
4178 if (sample < 0 && st->nb_index_entries && timestamp < st->index_entries[0].timestamp)
4180 if (sample < 0) /* not sure what to do */
4181 return AVERROR_INVALIDDATA;
4182 sc->current_sample = sample;
4183 av_dlog(s, "stream %d, found sample %d\n", st->index, sc->current_sample);
4184 /* adjust ctts index */
4185 if (sc->ctts_data) {
4187 for (i = 0; i < sc->ctts_count; i++) {
4188 int next = time_sample + sc->ctts_data[i].count;
4189 if (next > sc->current_sample) {
4191 sc->ctts_sample = sc->current_sample - time_sample;
4200 static int mov_read_seek(AVFormatContext *s, int stream_index, int64_t sample_time, int flags)
4203 int64_t seek_timestamp, timestamp;
4207 if (stream_index >= s->nb_streams)
4208 return AVERROR_INVALIDDATA;
4210 st = s->streams[stream_index];
4211 sample = mov_seek_stream(s, st, sample_time, flags);
4215 /* adjust seek timestamp to found sample timestamp */
4216 seek_timestamp = st->index_entries[sample].timestamp;
4218 for (i = 0; i < s->nb_streams; i++) {
4219 MOVStreamContext *sc = s->streams[i]->priv_data;
4221 st->skip_samples = (sample_time <= 0) ? sc->start_pad : 0;
4223 if (stream_index == i)
4226 timestamp = av_rescale_q(seek_timestamp, s->streams[stream_index]->time_base, st->time_base);
4227 mov_seek_stream(s, st, timestamp, flags);
4232 #define OFFSET(x) offsetof(MOVContext, x)
4233 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM
4234 static const AVOption mov_options[] = {
4235 {"use_absolute_path",
4236 "allow using absolute path when opening alias, this is a possible security issue",
4237 OFFSET(use_absolute_path), FF_OPT_TYPE_INT, {.i64 = 0},
4239 {"ignore_editlist", "", OFFSET(ignore_editlist), FF_OPT_TYPE_INT, {.i64 = 0},
4242 "use mfra for fragment timestamps",
4243 OFFSET(use_mfra_for), FF_OPT_TYPE_INT, {.i64 = FF_MOV_FLAG_MFRA_AUTO},
4244 -1, FF_MOV_FLAG_MFRA_PTS, FLAGS,
4246 {"auto", "auto", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_MFRA_AUTO}, 0, 0,
4247 FLAGS, "use_mfra_for" },
4248 {"dts", "dts", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_MFRA_DTS}, 0, 0,
4249 FLAGS, "use_mfra_for" },
4250 {"pts", "pts", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_MFRA_PTS}, 0, 0,
4251 FLAGS, "use_mfra_for" },
4252 { "export_all", "Export unrecognized metadata entries", OFFSET(export_all),
4253 AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, .flags = FLAGS },
4254 { "export_xmp", "Export full XMP metadata", OFFSET(export_xmp),
4255 AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, .flags = FLAGS },
4259 static const AVClass mov_class = {
4260 .class_name = "mov,mp4,m4a,3gp,3g2,mj2",
4261 .item_name = av_default_item_name,
4262 .option = mov_options,
4263 .version = LIBAVUTIL_VERSION_INT,
4266 AVInputFormat ff_mov_demuxer = {
4267 .name = "mov,mp4,m4a,3gp,3g2,mj2",
4268 .long_name = NULL_IF_CONFIG_SMALL("QuickTime / MOV"),
4269 .priv_class = &mov_class,
4270 .priv_data_size = sizeof(MOVContext),
4271 .extensions = "mov,mp4,m4a,3gp,3g2,mj2",
4272 .read_probe = mov_probe,
4273 .read_header = mov_read_header,
4274 .read_packet = mov_read_packet,
4275 .read_close = mov_read_close,
4276 .read_seek = mov_read_seek,
4277 .flags = AVFMT_NO_BYTE_SEEK,