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/internal.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/avassert.h"
38 #include "libavutil/avstring.h"
39 #include "libavutil/dict.h"
40 #include "libavutil/display.h"
41 #include "libavutil/opt.h"
42 #include "libavutil/aes.h"
43 #include "libavutil/aes_ctr.h"
44 #include "libavutil/pixdesc.h"
45 #include "libavutil/sha.h"
46 #include "libavutil/spherical.h"
47 #include "libavutil/stereo3d.h"
48 #include "libavutil/timecode.h"
49 #include "libavcodec/ac3tab.h"
50 #include "libavcodec/flac.h"
51 #include "libavcodec/mpegaudiodecheader.h"
54 #include "avio_internal.h"
57 #include "libavcodec/get_bits.h"
60 #include "replaygain.h"
66 #include "qtpalette.h"
68 /* those functions parse an atom */
69 /* links atom IDs to parse functions */
70 typedef struct MOVParseTableEntry {
72 int (*parse)(MOVContext *ctx, AVIOContext *pb, MOVAtom atom);
75 static int mov_read_default(MOVContext *c, AVIOContext *pb, MOVAtom atom);
76 static int mov_read_mfra(MOVContext *c, AVIOContext *f);
78 static int mov_metadata_track_or_disc_number(MOVContext *c, AVIOContext *pb,
79 unsigned len, const char *key)
83 short current, total = 0;
84 avio_rb16(pb); // unknown
85 current = avio_rb16(pb);
87 total = avio_rb16(pb);
89 snprintf(buf, sizeof(buf), "%d", current);
91 snprintf(buf, sizeof(buf), "%d/%d", current, total);
92 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
93 av_dict_set(&c->fc->metadata, key, buf, 0);
98 static int mov_metadata_int8_bypass_padding(MOVContext *c, AVIOContext *pb,
99 unsigned len, const char *key)
101 /* bypass padding bytes */
106 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
107 av_dict_set_int(&c->fc->metadata, key, avio_r8(pb), 0);
112 static int mov_metadata_int8_no_padding(MOVContext *c, AVIOContext *pb,
113 unsigned len, const char *key)
115 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
116 av_dict_set_int(&c->fc->metadata, key, avio_r8(pb), 0);
121 static int mov_metadata_gnre(MOVContext *c, AVIOContext *pb,
122 unsigned len, const char *key)
126 avio_r8(pb); // unknown
129 if (genre < 1 || genre > ID3v1_GENRE_MAX)
131 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
132 av_dict_set(&c->fc->metadata, key, ff_id3v1_genre_str[genre-1], 0);
137 static const uint32_t mac_to_unicode[128] = {
138 0x00C4,0x00C5,0x00C7,0x00C9,0x00D1,0x00D6,0x00DC,0x00E1,
139 0x00E0,0x00E2,0x00E4,0x00E3,0x00E5,0x00E7,0x00E9,0x00E8,
140 0x00EA,0x00EB,0x00ED,0x00EC,0x00EE,0x00EF,0x00F1,0x00F3,
141 0x00F2,0x00F4,0x00F6,0x00F5,0x00FA,0x00F9,0x00FB,0x00FC,
142 0x2020,0x00B0,0x00A2,0x00A3,0x00A7,0x2022,0x00B6,0x00DF,
143 0x00AE,0x00A9,0x2122,0x00B4,0x00A8,0x2260,0x00C6,0x00D8,
144 0x221E,0x00B1,0x2264,0x2265,0x00A5,0x00B5,0x2202,0x2211,
145 0x220F,0x03C0,0x222B,0x00AA,0x00BA,0x03A9,0x00E6,0x00F8,
146 0x00BF,0x00A1,0x00AC,0x221A,0x0192,0x2248,0x2206,0x00AB,
147 0x00BB,0x2026,0x00A0,0x00C0,0x00C3,0x00D5,0x0152,0x0153,
148 0x2013,0x2014,0x201C,0x201D,0x2018,0x2019,0x00F7,0x25CA,
149 0x00FF,0x0178,0x2044,0x20AC,0x2039,0x203A,0xFB01,0xFB02,
150 0x2021,0x00B7,0x201A,0x201E,0x2030,0x00C2,0x00CA,0x00C1,
151 0x00CB,0x00C8,0x00CD,0x00CE,0x00CF,0x00CC,0x00D3,0x00D4,
152 0xF8FF,0x00D2,0x00DA,0x00DB,0x00D9,0x0131,0x02C6,0x02DC,
153 0x00AF,0x02D8,0x02D9,0x02DA,0x00B8,0x02DD,0x02DB,0x02C7,
156 static int mov_read_mac_string(MOVContext *c, AVIOContext *pb, int len,
157 char *dst, int dstlen)
160 char *end = dst+dstlen-1;
163 for (i = 0; i < len; i++) {
164 uint8_t t, c = avio_r8(pb);
165 if (c < 0x80 && p < end)
168 PUT_UTF8(mac_to_unicode[c-0x80], t, if (p < end) *p++ = t;);
174 static int mov_read_covr(MOVContext *c, AVIOContext *pb, int type, int len)
178 MOVStreamContext *sc;
183 case 0xd: id = AV_CODEC_ID_MJPEG; break;
184 case 0xe: id = AV_CODEC_ID_PNG; break;
185 case 0x1b: id = AV_CODEC_ID_BMP; break;
187 av_log(c->fc, AV_LOG_WARNING, "Unknown cover type: 0x%x.\n", type);
192 st = avformat_new_stream(c->fc, NULL);
194 return AVERROR(ENOMEM);
195 sc = av_mallocz(sizeof(*sc));
197 return AVERROR(ENOMEM);
200 ret = av_get_packet(pb, &pkt, len);
204 if (pkt.size >= 8 && id != AV_CODEC_ID_BMP) {
205 if (AV_RB64(pkt.data) == 0x89504e470d0a1a0a) {
206 id = AV_CODEC_ID_PNG;
208 id = AV_CODEC_ID_MJPEG;
212 st->disposition |= AV_DISPOSITION_ATTACHED_PIC;
214 st->attached_pic = pkt;
215 st->attached_pic.stream_index = st->index;
216 st->attached_pic.flags |= AV_PKT_FLAG_KEY;
218 st->codecpar->codec_type = AVMEDIA_TYPE_VIDEO;
219 st->codecpar->codec_id = id;
225 static int mov_metadata_loci(MOVContext *c, AVIOContext *pb, unsigned len)
227 char language[4] = { 0 };
228 char buf[200], place[100];
229 uint16_t langcode = 0;
230 double longitude, latitude, altitude;
231 const char *key = "location";
233 if (len < 4 + 2 + 1 + 1 + 4 + 4 + 4) {
234 av_log(c->fc, AV_LOG_ERROR, "loci too short\n");
235 return AVERROR_INVALIDDATA;
238 avio_skip(pb, 4); // version+flags
239 langcode = avio_rb16(pb);
240 ff_mov_lang_to_iso639(langcode, language);
243 len -= avio_get_str(pb, len, place, sizeof(place));
245 av_log(c->fc, AV_LOG_ERROR, "place name too long\n");
246 return AVERROR_INVALIDDATA;
248 avio_skip(pb, 1); // role
252 av_log(c->fc, AV_LOG_ERROR,
253 "loci too short (%u bytes left, need at least %d)\n", len, 12);
254 return AVERROR_INVALIDDATA;
256 longitude = ((int32_t) avio_rb32(pb)) / (float) (1 << 16);
257 latitude = ((int32_t) avio_rb32(pb)) / (float) (1 << 16);
258 altitude = ((int32_t) avio_rb32(pb)) / (float) (1 << 16);
260 // Try to output in the same format as the ?xyz field
261 snprintf(buf, sizeof(buf), "%+08.4f%+09.4f", latitude, longitude);
263 av_strlcatf(buf, sizeof(buf), "%+f", altitude);
264 av_strlcatf(buf, sizeof(buf), "/%s", place);
266 if (*language && strcmp(language, "und")) {
268 snprintf(key2, sizeof(key2), "%s-%s", key, language);
269 av_dict_set(&c->fc->metadata, key2, buf, 0);
271 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
272 return av_dict_set(&c->fc->metadata, key, buf, 0);
275 static int mov_metadata_hmmt(MOVContext *c, AVIOContext *pb, unsigned len)
281 if (c->ignore_chapters)
284 n_hmmt = avio_rb32(pb);
285 for (i = 0; i < n_hmmt && !pb->eof_reached; i++) {
286 int moment_time = avio_rb32(pb);
287 avpriv_new_chapter(c->fc, i, av_make_q(1, 1000), moment_time, AV_NOPTS_VALUE, NULL);
292 static int mov_read_udta_string(MOVContext *c, AVIOContext *pb, MOVAtom atom)
295 char key2[32], language[4] = {0};
297 const char *key = NULL;
298 uint16_t langcode = 0;
299 uint32_t data_type = 0, str_size, str_size_alloc;
300 int (*parse)(MOVContext*, AVIOContext*, unsigned, const char*) = NULL;
305 case MKTAG( '@','P','R','M'): key = "premiere_version"; raw = 1; break;
306 case MKTAG( '@','P','R','Q'): key = "quicktime_version"; raw = 1; break;
307 case MKTAG( 'X','M','P','_'):
308 if (c->export_xmp) { key = "xmp"; raw = 1; } break;
309 case MKTAG( 'a','A','R','T'): key = "album_artist"; break;
310 case MKTAG( 'a','k','I','D'): key = "account_type";
311 parse = mov_metadata_int8_no_padding; break;
312 case MKTAG( 'a','p','I','D'): key = "account_id"; break;
313 case MKTAG( 'c','a','t','g'): key = "category"; break;
314 case MKTAG( 'c','p','i','l'): key = "compilation";
315 parse = mov_metadata_int8_no_padding; break;
316 case MKTAG( 'c','p','r','t'): key = "copyright"; break;
317 case MKTAG( 'd','e','s','c'): key = "description"; break;
318 case MKTAG( 'd','i','s','k'): key = "disc";
319 parse = mov_metadata_track_or_disc_number; break;
320 case MKTAG( 'e','g','i','d'): key = "episode_uid";
321 parse = mov_metadata_int8_no_padding; break;
322 case MKTAG( 'F','I','R','M'): key = "firmware"; raw = 1; break;
323 case MKTAG( 'g','n','r','e'): key = "genre";
324 parse = mov_metadata_gnre; break;
325 case MKTAG( 'h','d','v','d'): key = "hd_video";
326 parse = mov_metadata_int8_no_padding; break;
327 case MKTAG( 'H','M','M','T'):
328 return mov_metadata_hmmt(c, pb, atom.size);
329 case MKTAG( 'k','e','y','w'): key = "keywords"; break;
330 case MKTAG( 'l','d','e','s'): key = "synopsis"; break;
331 case MKTAG( 'l','o','c','i'):
332 return mov_metadata_loci(c, pb, atom.size);
333 case MKTAG( 'p','c','s','t'): key = "podcast";
334 parse = mov_metadata_int8_no_padding; break;
335 case MKTAG( 'p','g','a','p'): key = "gapless_playback";
336 parse = mov_metadata_int8_no_padding; break;
337 case MKTAG( 'p','u','r','d'): key = "purchase_date"; break;
338 case MKTAG( 'r','t','n','g'): key = "rating";
339 parse = mov_metadata_int8_no_padding; break;
340 case MKTAG( 's','o','a','a'): key = "sort_album_artist"; break;
341 case MKTAG( 's','o','a','l'): key = "sort_album"; break;
342 case MKTAG( 's','o','a','r'): key = "sort_artist"; break;
343 case MKTAG( 's','o','c','o'): key = "sort_composer"; break;
344 case MKTAG( 's','o','n','m'): key = "sort_name"; break;
345 case MKTAG( 's','o','s','n'): key = "sort_show"; break;
346 case MKTAG( 's','t','i','k'): key = "media_type";
347 parse = mov_metadata_int8_no_padding; break;
348 case MKTAG( 't','r','k','n'): key = "track";
349 parse = mov_metadata_track_or_disc_number; break;
350 case MKTAG( 't','v','e','n'): key = "episode_id"; break;
351 case MKTAG( 't','v','e','s'): key = "episode_sort";
352 parse = mov_metadata_int8_bypass_padding; break;
353 case MKTAG( 't','v','n','n'): key = "network"; break;
354 case MKTAG( 't','v','s','h'): key = "show"; break;
355 case MKTAG( 't','v','s','n'): key = "season_number";
356 parse = mov_metadata_int8_bypass_padding; break;
357 case MKTAG(0xa9,'A','R','T'): key = "artist"; break;
358 case MKTAG(0xa9,'P','R','D'): key = "producer"; break;
359 case MKTAG(0xa9,'a','l','b'): key = "album"; break;
360 case MKTAG(0xa9,'a','u','t'): key = "artist"; break;
361 case MKTAG(0xa9,'c','h','p'): key = "chapter"; break;
362 case MKTAG(0xa9,'c','m','t'): key = "comment"; break;
363 case MKTAG(0xa9,'c','o','m'): key = "composer"; break;
364 case MKTAG(0xa9,'c','p','y'): key = "copyright"; break;
365 case MKTAG(0xa9,'d','a','y'): key = "date"; break;
366 case MKTAG(0xa9,'d','i','r'): key = "director"; break;
367 case MKTAG(0xa9,'d','i','s'): key = "disclaimer"; break;
368 case MKTAG(0xa9,'e','d','1'): key = "edit_date"; break;
369 case MKTAG(0xa9,'e','n','c'): key = "encoder"; break;
370 case MKTAG(0xa9,'f','m','t'): key = "original_format"; break;
371 case MKTAG(0xa9,'g','e','n'): key = "genre"; break;
372 case MKTAG(0xa9,'g','r','p'): key = "grouping"; break;
373 case MKTAG(0xa9,'h','s','t'): key = "host_computer"; break;
374 case MKTAG(0xa9,'i','n','f'): key = "comment"; break;
375 case MKTAG(0xa9,'l','y','r'): key = "lyrics"; break;
376 case MKTAG(0xa9,'m','a','k'): key = "make"; break;
377 case MKTAG(0xa9,'m','o','d'): key = "model"; break;
378 case MKTAG(0xa9,'n','a','m'): key = "title"; break;
379 case MKTAG(0xa9,'o','p','e'): key = "original_artist"; break;
380 case MKTAG(0xa9,'p','r','d'): key = "producer"; break;
381 case MKTAG(0xa9,'p','r','f'): key = "performers"; break;
382 case MKTAG(0xa9,'r','e','q'): key = "playback_requirements"; break;
383 case MKTAG(0xa9,'s','r','c'): key = "original_source"; break;
384 case MKTAG(0xa9,'s','t','3'): key = "subtitle"; break;
385 case MKTAG(0xa9,'s','w','r'): key = "encoder"; break;
386 case MKTAG(0xa9,'t','o','o'): key = "encoder"; break;
387 case MKTAG(0xa9,'t','r','k'): key = "track"; break;
388 case MKTAG(0xa9,'u','r','l'): key = "URL"; break;
389 case MKTAG(0xa9,'w','r','n'): key = "warning"; break;
390 case MKTAG(0xa9,'w','r','t'): key = "composer"; break;
391 case MKTAG(0xa9,'x','y','z'): key = "location"; break;
394 if (c->itunes_metadata && atom.size > 8) {
395 int data_size = avio_rb32(pb);
396 int tag = avio_rl32(pb);
397 if (tag == MKTAG('d','a','t','a') && data_size <= atom.size) {
398 data_type = avio_rb32(pb); // type
399 avio_rb32(pb); // unknown
400 str_size = data_size - 16;
403 if (atom.type == MKTAG('c', 'o', 'v', 'r')) {
404 int ret = mov_read_covr(c, pb, data_type, str_size);
406 av_log(c->fc, AV_LOG_ERROR, "Error parsing cover art.\n");
409 } else if (!key && c->found_hdlr_mdta && c->meta_keys) {
410 uint32_t index = AV_RB32(&atom.type);
411 if (index < c->meta_keys_count && index > 0) {
412 key = c->meta_keys[index];
414 av_log(c->fc, AV_LOG_WARNING,
415 "The index of 'data' is out of range: %"PRId32" < 1 or >= %d.\n",
416 index, c->meta_keys_count);
420 } else if (atom.size > 4 && key && !c->itunes_metadata && !raw) {
421 str_size = avio_rb16(pb); // string length
422 if (str_size > atom.size) {
424 avio_seek(pb, -2, SEEK_CUR);
425 av_log(c->fc, AV_LOG_WARNING, "UDTA parsing failed retrying raw\n");
428 langcode = avio_rb16(pb);
429 ff_mov_lang_to_iso639(langcode, language);
432 str_size = atom.size;
434 if (c->export_all && !key) {
435 snprintf(tmp_key, 5, "%.4s", (char*)&atom.type);
441 if (atom.size < 0 || str_size >= INT_MAX/2)
442 return AVERROR_INVALIDDATA;
444 // Allocates enough space if data_type is a int32 or float32 number, otherwise
445 // worst-case requirement for output string in case of utf8 coded input
446 num = (data_type >= 21 && data_type <= 23);
447 str_size_alloc = (num ? 512 : (raw ? str_size : str_size * 2)) + 1;
448 str = av_mallocz(str_size_alloc);
450 return AVERROR(ENOMEM);
453 parse(c, pb, str_size, key);
455 if (!raw && (data_type == 3 || (data_type == 0 && (langcode < 0x400 || langcode == 0x7fff)))) { // MAC Encoded
456 mov_read_mac_string(c, pb, str_size, str, str_size_alloc);
457 } else if (data_type == 21) { // BE signed integer, variable size
460 val = (int8_t)avio_r8(pb);
461 else if (str_size == 2)
462 val = (int16_t)avio_rb16(pb);
463 else if (str_size == 3)
464 val = ((int32_t)(avio_rb24(pb)<<8))>>8;
465 else if (str_size == 4)
466 val = (int32_t)avio_rb32(pb);
467 if (snprintf(str, str_size_alloc, "%d", val) >= str_size_alloc) {
468 av_log(c->fc, AV_LOG_ERROR,
469 "Failed to store the number (%d) in string.\n", val);
471 return AVERROR_INVALIDDATA;
473 } else if (data_type == 22) { // BE unsigned integer, variable size
474 unsigned int val = 0;
477 else if (str_size == 2)
479 else if (str_size == 3)
481 else if (str_size == 4)
483 if (snprintf(str, str_size_alloc, "%u", val) >= str_size_alloc) {
484 av_log(c->fc, AV_LOG_ERROR,
485 "Failed to store the number (%u) in string.\n", val);
487 return AVERROR_INVALIDDATA;
489 } else if (data_type == 23 && str_size >= 4) { // BE float32
490 float val = av_int2float(avio_rb32(pb));
491 if (snprintf(str, str_size_alloc, "%f", val) >= str_size_alloc) {
492 av_log(c->fc, AV_LOG_ERROR,
493 "Failed to store the float32 number (%f) in string.\n", val);
495 return AVERROR_INVALIDDATA;
498 int ret = ffio_read_size(pb, str, str_size);
505 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
506 av_dict_set(&c->fc->metadata, key, str, 0);
507 if (*language && strcmp(language, "und")) {
508 snprintf(key2, sizeof(key2), "%s-%s", key, language);
509 av_dict_set(&c->fc->metadata, key2, str, 0);
511 if (!strcmp(key, "encoder")) {
512 int major, minor, micro;
513 if (sscanf(str, "HandBrake %d.%d.%d", &major, &minor, µ) == 3) {
514 c->handbrake_version = 1000000*major + 1000*minor + micro;
523 static int mov_read_chpl(MOVContext *c, AVIOContext *pb, MOVAtom atom)
526 int i, nb_chapters, str_len, version;
530 if (c->ignore_chapters)
533 if ((atom.size -= 5) < 0)
536 version = avio_r8(pb);
539 avio_rb32(pb); // ???
540 nb_chapters = avio_r8(pb);
542 for (i = 0; i < nb_chapters; i++) {
546 start = avio_rb64(pb);
547 str_len = avio_r8(pb);
549 if ((atom.size -= 9+str_len) < 0)
552 ret = ffio_read_size(pb, str, str_len);
556 avpriv_new_chapter(c->fc, i, (AVRational){1,10000000}, start, AV_NOPTS_VALUE, str);
561 #define MIN_DATA_ENTRY_BOX_SIZE 12
562 static int mov_read_dref(MOVContext *c, AVIOContext *pb, MOVAtom atom)
565 MOVStreamContext *sc;
568 if (c->fc->nb_streams < 1)
570 st = c->fc->streams[c->fc->nb_streams-1];
573 avio_rb32(pb); // version + flags
574 entries = avio_rb32(pb);
576 entries > (atom.size - 1) / MIN_DATA_ENTRY_BOX_SIZE + 1 ||
577 entries >= UINT_MAX / sizeof(*sc->drefs))
578 return AVERROR_INVALIDDATA;
582 sc->drefs = av_mallocz(entries * sizeof(*sc->drefs));
584 return AVERROR(ENOMEM);
585 sc->drefs_count = entries;
587 for (i = 0; i < entries; i++) {
588 MOVDref *dref = &sc->drefs[i];
589 uint32_t size = avio_rb32(pb);
590 int64_t next = avio_tell(pb) + size - 4;
593 return AVERROR_INVALIDDATA;
595 dref->type = avio_rl32(pb);
596 avio_rb32(pb); // version + flags
598 if (dref->type == MKTAG('a','l','i','s') && size > 150) {
599 /* macintosh alias record */
600 uint16_t volume_len, len;
606 volume_len = avio_r8(pb);
607 volume_len = FFMIN(volume_len, 27);
608 ret = ffio_read_size(pb, dref->volume, 27);
611 dref->volume[volume_len] = 0;
612 av_log(c->fc, AV_LOG_DEBUG, "volume %s, len %d\n", dref->volume, volume_len);
617 len = FFMIN(len, 63);
618 ret = ffio_read_size(pb, dref->filename, 63);
621 dref->filename[len] = 0;
622 av_log(c->fc, AV_LOG_DEBUG, "filename %s, len %d\n", dref->filename, len);
626 /* read next level up_from_alias/down_to_target */
627 dref->nlvl_from = avio_rb16(pb);
628 dref->nlvl_to = avio_rb16(pb);
629 av_log(c->fc, AV_LOG_DEBUG, "nlvl from %d, nlvl to %d\n",
630 dref->nlvl_from, dref->nlvl_to);
634 for (type = 0; type != -1 && avio_tell(pb) < next; ) {
637 type = avio_rb16(pb);
639 av_log(c->fc, AV_LOG_DEBUG, "type %d, len %d\n", type, len);
642 if (type == 2) { // absolute path
644 dref->path = av_mallocz(len+1);
646 return AVERROR(ENOMEM);
648 ret = ffio_read_size(pb, dref->path, len);
650 av_freep(&dref->path);
653 if (len > volume_len && !strncmp(dref->path, dref->volume, volume_len)) {
655 memmove(dref->path, dref->path+volume_len, len);
658 // trim string of any ending zeros
659 for (j = len - 1; j >= 0; j--) {
660 if (dref->path[j] == 0)
665 for (j = 0; j < len; j++)
666 if (dref->path[j] == ':' || dref->path[j] == 0)
668 av_log(c->fc, AV_LOG_DEBUG, "path %s\n", dref->path);
669 } else if (type == 0) { // directory name
671 dref->dir = av_malloc(len+1);
673 return AVERROR(ENOMEM);
675 ret = ffio_read_size(pb, dref->dir, len);
677 av_freep(&dref->dir);
681 for (j = 0; j < len; j++)
682 if (dref->dir[j] == ':')
684 av_log(c->fc, AV_LOG_DEBUG, "dir %s\n", dref->dir);
689 av_log(c->fc, AV_LOG_DEBUG, "Unknown dref type 0x%08"PRIx32" size %"PRIu32"\n",
694 avio_seek(pb, next, SEEK_SET);
699 static int mov_read_hdlr(MOVContext *c, AVIOContext *pb, MOVAtom atom)
708 avio_r8(pb); /* version */
709 avio_rb24(pb); /* flags */
712 ctype = avio_rl32(pb);
713 type = avio_rl32(pb); /* component subtype */
715 av_log(c->fc, AV_LOG_TRACE, "ctype=%s\n", av_fourcc2str(ctype));
716 av_log(c->fc, AV_LOG_TRACE, "stype=%s\n", av_fourcc2str(type));
718 if (c->trak_index < 0) { // meta not inside a trak
719 if (type == MKTAG('m','d','t','a')) {
720 c->found_hdlr_mdta = 1;
725 st = c->fc->streams[c->fc->nb_streams-1];
727 if (type == MKTAG('v','i','d','e'))
728 st->codecpar->codec_type = AVMEDIA_TYPE_VIDEO;
729 else if (type == MKTAG('s','o','u','n'))
730 st->codecpar->codec_type = AVMEDIA_TYPE_AUDIO;
731 else if (type == MKTAG('m','1','a',' '))
732 st->codecpar->codec_id = AV_CODEC_ID_MP2;
733 else if ((type == MKTAG('s','u','b','p')) || (type == MKTAG('c','l','c','p')))
734 st->codecpar->codec_type = AVMEDIA_TYPE_SUBTITLE;
736 avio_rb32(pb); /* component manufacture */
737 avio_rb32(pb); /* component flags */
738 avio_rb32(pb); /* component flags mask */
740 title_size = atom.size - 24;
741 if (title_size > 0) {
742 if (title_size > FFMIN(INT_MAX, SIZE_MAX-1))
743 return AVERROR_INVALIDDATA;
744 title_str = av_malloc(title_size + 1); /* Add null terminator */
746 return AVERROR(ENOMEM);
748 ret = ffio_read_size(pb, title_str, title_size);
750 av_freep(&title_str);
753 title_str[title_size] = 0;
755 int off = (!c->isom && title_str[0] == title_size - 1);
756 av_dict_set(&st->metadata, "handler_name", title_str + off, 0);
758 av_freep(&title_str);
764 int ff_mov_read_esds(AVFormatContext *fc, AVIOContext *pb)
769 if (fc->nb_streams < 1)
771 st = fc->streams[fc->nb_streams-1];
773 avio_rb32(pb); /* version + flags */
774 ff_mp4_read_descr(fc, pb, &tag);
775 if (tag == MP4ESDescrTag) {
776 ff_mp4_parse_es_descr(pb, NULL);
778 avio_rb16(pb); /* ID */
780 ff_mp4_read_descr(fc, pb, &tag);
781 if (tag == MP4DecConfigDescrTag)
782 ff_mp4_read_dec_config_descr(fc, st, pb);
786 static int mov_read_esds(MOVContext *c, AVIOContext *pb, MOVAtom atom)
788 return ff_mov_read_esds(c->fc, pb);
791 static int mov_read_dac3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
794 enum AVAudioServiceType *ast;
795 int ac3info, acmod, lfeon, bsmod;
797 if (c->fc->nb_streams < 1)
799 st = c->fc->streams[c->fc->nb_streams-1];
801 ast = (enum AVAudioServiceType*)av_stream_new_side_data(st, AV_PKT_DATA_AUDIO_SERVICE_TYPE,
804 return AVERROR(ENOMEM);
806 ac3info = avio_rb24(pb);
807 bsmod = (ac3info >> 14) & 0x7;
808 acmod = (ac3info >> 11) & 0x7;
809 lfeon = (ac3info >> 10) & 0x1;
810 st->codecpar->channels = ((int[]){2,1,2,3,3,4,4,5})[acmod] + lfeon;
811 st->codecpar->channel_layout = avpriv_ac3_channel_layout_tab[acmod];
813 st->codecpar->channel_layout |= AV_CH_LOW_FREQUENCY;
815 if (st->codecpar->channels > 1 && bsmod == 0x7)
816 *ast = AV_AUDIO_SERVICE_TYPE_KARAOKE;
818 #if FF_API_LAVF_AVCTX
819 FF_DISABLE_DEPRECATION_WARNINGS
820 st->codec->audio_service_type = *ast;
821 FF_ENABLE_DEPRECATION_WARNINGS
827 static int mov_read_dec3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
830 enum AVAudioServiceType *ast;
831 int eac3info, acmod, lfeon, bsmod;
833 if (c->fc->nb_streams < 1)
835 st = c->fc->streams[c->fc->nb_streams-1];
837 ast = (enum AVAudioServiceType*)av_stream_new_side_data(st, AV_PKT_DATA_AUDIO_SERVICE_TYPE,
840 return AVERROR(ENOMEM);
842 /* No need to parse fields for additional independent substreams and its
843 * associated dependent substreams since libavcodec's E-AC-3 decoder
844 * does not support them yet. */
845 avio_rb16(pb); /* data_rate and num_ind_sub */
846 eac3info = avio_rb24(pb);
847 bsmod = (eac3info >> 12) & 0x1f;
848 acmod = (eac3info >> 9) & 0x7;
849 lfeon = (eac3info >> 8) & 0x1;
850 st->codecpar->channel_layout = avpriv_ac3_channel_layout_tab[acmod];
852 st->codecpar->channel_layout |= AV_CH_LOW_FREQUENCY;
853 st->codecpar->channels = av_get_channel_layout_nb_channels(st->codecpar->channel_layout);
855 if (st->codecpar->channels > 1 && bsmod == 0x7)
856 *ast = AV_AUDIO_SERVICE_TYPE_KARAOKE;
858 #if FF_API_LAVF_AVCTX
859 FF_DISABLE_DEPRECATION_WARNINGS
860 st->codec->audio_service_type = *ast;
861 FF_ENABLE_DEPRECATION_WARNINGS
867 static int mov_read_ddts(MOVContext *c, AVIOContext *pb, MOVAtom atom)
869 const uint32_t ddts_size = 20;
872 uint32_t frame_duration_code = 0;
873 uint32_t channel_layout_code = 0;
876 buf = av_malloc(ddts_size + AV_INPUT_BUFFER_PADDING_SIZE);
878 return AVERROR(ENOMEM);
880 if (avio_read(pb, buf, ddts_size) < ddts_size) {
882 return AVERROR_INVALIDDATA;
885 init_get_bits(&gb, buf, 8*ddts_size);
887 if (c->fc->nb_streams < 1) {
890 st = c->fc->streams[c->fc->nb_streams-1];
892 st->codecpar->sample_rate = get_bits_long(&gb, 32);
893 if (st->codecpar->sample_rate <= 0) {
894 av_log(c->fc, AV_LOG_ERROR, "Invalid sample rate %d\n", st->codecpar->sample_rate);
895 return AVERROR_INVALIDDATA;
897 skip_bits_long(&gb, 32); /* max bitrate */
898 st->codecpar->bit_rate = get_bits_long(&gb, 32);
899 st->codecpar->bits_per_coded_sample = get_bits(&gb, 8);
900 frame_duration_code = get_bits(&gb, 2);
901 skip_bits(&gb, 30); /* various fields */
902 channel_layout_code = get_bits(&gb, 16);
904 st->codecpar->frame_size =
905 (frame_duration_code == 0) ? 512 :
906 (frame_duration_code == 1) ? 1024 :
907 (frame_duration_code == 2) ? 2048 :
908 (frame_duration_code == 3) ? 4096 : 0;
910 if (channel_layout_code > 0xff) {
911 av_log(c->fc, AV_LOG_WARNING, "Unsupported DTS audio channel layout");
913 st->codecpar->channel_layout =
914 ((channel_layout_code & 0x1) ? AV_CH_FRONT_CENTER : 0) |
915 ((channel_layout_code & 0x2) ? AV_CH_FRONT_LEFT : 0) |
916 ((channel_layout_code & 0x2) ? AV_CH_FRONT_RIGHT : 0) |
917 ((channel_layout_code & 0x4) ? AV_CH_SIDE_LEFT : 0) |
918 ((channel_layout_code & 0x4) ? AV_CH_SIDE_RIGHT : 0) |
919 ((channel_layout_code & 0x8) ? AV_CH_LOW_FREQUENCY : 0);
921 st->codecpar->channels = av_get_channel_layout_nb_channels(st->codecpar->channel_layout);
926 static int mov_read_chan(MOVContext *c, AVIOContext *pb, MOVAtom atom)
930 if (c->fc->nb_streams < 1)
932 st = c->fc->streams[c->fc->nb_streams-1];
937 /* skip version and flags */
940 ff_mov_read_chan(c->fc, pb, st, atom.size - 4);
945 static int mov_read_wfex(MOVContext *c, AVIOContext *pb, MOVAtom atom)
950 if (c->fc->nb_streams < 1)
952 st = c->fc->streams[c->fc->nb_streams-1];
954 if ((ret = ff_get_wav_header(c->fc, pb, st->codecpar, atom.size, 0)) < 0)
955 av_log(c->fc, AV_LOG_WARNING, "get_wav_header failed\n");
960 static int mov_read_pasp(MOVContext *c, AVIOContext *pb, MOVAtom atom)
962 const int num = avio_rb32(pb);
963 const int den = avio_rb32(pb);
966 if (c->fc->nb_streams < 1)
968 st = c->fc->streams[c->fc->nb_streams-1];
970 if ((st->sample_aspect_ratio.den != 1 || st->sample_aspect_ratio.num) && // default
971 (den != st->sample_aspect_ratio.den || num != st->sample_aspect_ratio.num)) {
972 av_log(c->fc, AV_LOG_WARNING,
973 "sample aspect ratio already set to %d:%d, ignoring 'pasp' atom (%d:%d)\n",
974 st->sample_aspect_ratio.num, st->sample_aspect_ratio.den,
976 } else if (den != 0) {
977 av_reduce(&st->sample_aspect_ratio.num, &st->sample_aspect_ratio.den,
983 /* this atom contains actual media data */
984 static int mov_read_mdat(MOVContext *c, AVIOContext *pb, MOVAtom atom)
986 if (atom.size == 0) /* wrong one (MP4) */
989 return 0; /* now go for moov */
992 #define DRM_BLOB_SIZE 56
994 static int mov_read_adrm(MOVContext *c, AVIOContext *pb, MOVAtom atom)
996 uint8_t intermediate_key[20];
997 uint8_t intermediate_iv[20];
1000 uint8_t file_checksum[20];
1001 uint8_t calculated_checksum[20];
1005 uint8_t *activation_bytes = c->activation_bytes;
1006 uint8_t *fixed_key = c->audible_fixed_key;
1010 sha = av_sha_alloc();
1012 return AVERROR(ENOMEM);
1013 c->aes_decrypt = av_aes_alloc();
1014 if (!c->aes_decrypt) {
1015 ret = AVERROR(ENOMEM);
1019 /* drm blob processing */
1020 avio_read(pb, output, 8); // go to offset 8, absolute position 0x251
1021 avio_read(pb, input, DRM_BLOB_SIZE);
1022 avio_read(pb, output, 4); // go to offset 4, absolute position 0x28d
1023 avio_read(pb, file_checksum, 20);
1025 av_log(c->fc, AV_LOG_INFO, "[aax] file checksum == "); // required by external tools
1026 for (i = 0; i < 20; i++)
1027 av_log(c->fc, AV_LOG_INFO, "%02x", file_checksum[i]);
1028 av_log(c->fc, AV_LOG_INFO, "\n");
1030 /* verify activation data */
1031 if (!activation_bytes) {
1032 av_log(c->fc, AV_LOG_WARNING, "[aax] activation_bytes option is missing!\n");
1033 ret = 0; /* allow ffprobe to continue working on .aax files */
1036 if (c->activation_bytes_size != 4) {
1037 av_log(c->fc, AV_LOG_FATAL, "[aax] activation_bytes value needs to be 4 bytes!\n");
1038 ret = AVERROR(EINVAL);
1042 /* verify fixed key */
1043 if (c->audible_fixed_key_size != 16) {
1044 av_log(c->fc, AV_LOG_FATAL, "[aax] audible_fixed_key value needs to be 16 bytes!\n");
1045 ret = AVERROR(EINVAL);
1049 /* AAX (and AAX+) key derivation */
1050 av_sha_init(sha, 160);
1051 av_sha_update(sha, fixed_key, 16);
1052 av_sha_update(sha, activation_bytes, 4);
1053 av_sha_final(sha, intermediate_key);
1054 av_sha_init(sha, 160);
1055 av_sha_update(sha, fixed_key, 16);
1056 av_sha_update(sha, intermediate_key, 20);
1057 av_sha_update(sha, activation_bytes, 4);
1058 av_sha_final(sha, intermediate_iv);
1059 av_sha_init(sha, 160);
1060 av_sha_update(sha, intermediate_key, 16);
1061 av_sha_update(sha, intermediate_iv, 16);
1062 av_sha_final(sha, calculated_checksum);
1063 if (memcmp(calculated_checksum, file_checksum, 20)) { // critical error
1064 av_log(c->fc, AV_LOG_ERROR, "[aax] mismatch in checksums!\n");
1065 ret = AVERROR_INVALIDDATA;
1068 av_aes_init(c->aes_decrypt, intermediate_key, 128, 1);
1069 av_aes_crypt(c->aes_decrypt, output, input, DRM_BLOB_SIZE >> 4, intermediate_iv, 1);
1070 for (i = 0; i < 4; i++) {
1071 // file data (in output) is stored in big-endian mode
1072 if (activation_bytes[i] != output[3 - i]) { // critical error
1073 av_log(c->fc, AV_LOG_ERROR, "[aax] error in drm blob decryption!\n");
1074 ret = AVERROR_INVALIDDATA;
1078 memcpy(c->file_key, output + 8, 16);
1079 memcpy(input, output + 26, 16);
1080 av_sha_init(sha, 160);
1081 av_sha_update(sha, input, 16);
1082 av_sha_update(sha, c->file_key, 16);
1083 av_sha_update(sha, fixed_key, 16);
1084 av_sha_final(sha, c->file_iv);
1092 // Audible AAX (and AAX+) bytestream decryption
1093 static int aax_filter(uint8_t *input, int size, MOVContext *c)
1096 unsigned char iv[16];
1098 memcpy(iv, c->file_iv, 16); // iv is overwritten
1099 blocks = size >> 4; // trailing bytes are not encrypted!
1100 av_aes_init(c->aes_decrypt, c->file_key, 128, 1);
1101 av_aes_crypt(c->aes_decrypt, input, input, blocks, iv, 1);
1106 /* read major brand, minor version and compatible brands and store them as metadata */
1107 static int mov_read_ftyp(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1110 int comp_brand_size;
1111 char* comp_brands_str;
1112 uint8_t type[5] = {0};
1113 int ret = ffio_read_size(pb, type, 4);
1117 if (strcmp(type, "qt "))
1119 av_log(c->fc, AV_LOG_DEBUG, "ISO: File Type Major Brand: %.4s\n",(char *)&type);
1120 av_dict_set(&c->fc->metadata, "major_brand", type, 0);
1121 minor_ver = avio_rb32(pb); /* minor version */
1122 av_dict_set_int(&c->fc->metadata, "minor_version", minor_ver, 0);
1124 comp_brand_size = atom.size - 8;
1125 if (comp_brand_size < 0)
1126 return AVERROR_INVALIDDATA;
1127 comp_brands_str = av_malloc(comp_brand_size + 1); /* Add null terminator */
1128 if (!comp_brands_str)
1129 return AVERROR(ENOMEM);
1131 ret = ffio_read_size(pb, comp_brands_str, comp_brand_size);
1133 av_freep(&comp_brands_str);
1136 comp_brands_str[comp_brand_size] = 0;
1137 av_dict_set(&c->fc->metadata, "compatible_brands", comp_brands_str, 0);
1138 av_freep(&comp_brands_str);
1143 /* this atom should contain all header atoms */
1144 static int mov_read_moov(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1148 if (c->found_moov) {
1149 av_log(c->fc, AV_LOG_WARNING, "Found duplicated MOOV Atom. Skipped it\n");
1150 avio_skip(pb, atom.size);
1154 if ((ret = mov_read_default(c, pb, atom)) < 0)
1156 /* we parsed the 'moov' atom, we can terminate the parsing as soon as we find the 'mdat' */
1157 /* so we don't parse the whole file if over a network */
1159 return 0; /* now go for mdat */
1162 static int mov_read_moof(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1164 if (!c->has_looked_for_mfra && c->use_mfra_for > 0) {
1165 c->has_looked_for_mfra = 1;
1166 if (pb->seekable & AVIO_SEEKABLE_NORMAL) {
1168 av_log(c->fc, AV_LOG_VERBOSE, "stream has moof boxes, will look "
1170 if ((ret = mov_read_mfra(c, pb)) < 0) {
1171 av_log(c->fc, AV_LOG_VERBOSE, "found a moof box but failed to "
1172 "read the mfra (may be a live ismv)\n");
1175 av_log(c->fc, AV_LOG_VERBOSE, "found a moof box but stream is not "
1176 "seekable, can not look for mfra\n");
1179 c->fragment.moof_offset = c->fragment.implicit_offset = avio_tell(pb) - 8;
1180 av_log(c->fc, AV_LOG_TRACE, "moof offset %"PRIx64"\n", c->fragment.moof_offset);
1181 return mov_read_default(c, pb, atom);
1184 static void mov_metadata_creation_time(AVDictionary **metadata, int64_t time)
1187 if(time >= 2082844800)
1188 time -= 2082844800; /* seconds between 1904-01-01 and Epoch */
1189 avpriv_dict_set_timestamp(metadata, "creation_time", time * 1000000);
1193 static int mov_read_mdhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1196 MOVStreamContext *sc;
1198 char language[4] = {0};
1200 int64_t creation_time;
1202 if (c->fc->nb_streams < 1)
1204 st = c->fc->streams[c->fc->nb_streams-1];
1207 if (sc->time_scale) {
1208 av_log(c->fc, AV_LOG_ERROR, "Multiple mdhd?\n");
1209 return AVERROR_INVALIDDATA;
1212 version = avio_r8(pb);
1214 avpriv_request_sample(c->fc, "Version %d", version);
1215 return AVERROR_PATCHWELCOME;
1217 avio_rb24(pb); /* flags */
1219 creation_time = avio_rb64(pb);
1222 creation_time = avio_rb32(pb);
1223 avio_rb32(pb); /* modification time */
1225 mov_metadata_creation_time(&st->metadata, creation_time);
1227 sc->time_scale = avio_rb32(pb);
1228 if (sc->time_scale <= 0) {
1229 av_log(c->fc, AV_LOG_ERROR, "Invalid mdhd time scale %d\n", sc->time_scale);
1230 return AVERROR_INVALIDDATA;
1232 st->duration = (version == 1) ? avio_rb64(pb) : avio_rb32(pb); /* duration */
1234 lang = avio_rb16(pb); /* language */
1235 if (ff_mov_lang_to_iso639(lang, language))
1236 av_dict_set(&st->metadata, "language", language, 0);
1237 avio_rb16(pb); /* quality */
1242 static int mov_read_mvhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1245 int64_t creation_time;
1246 int version = avio_r8(pb); /* version */
1247 avio_rb24(pb); /* flags */
1250 creation_time = avio_rb64(pb);
1253 creation_time = avio_rb32(pb);
1254 avio_rb32(pb); /* modification time */
1256 mov_metadata_creation_time(&c->fc->metadata, creation_time);
1257 c->time_scale = avio_rb32(pb); /* time scale */
1258 if (c->time_scale <= 0) {
1259 av_log(c->fc, AV_LOG_ERROR, "Invalid mvhd time scale %d\n", c->time_scale);
1260 return AVERROR_INVALIDDATA;
1262 av_log(c->fc, AV_LOG_TRACE, "time scale = %i\n", c->time_scale);
1264 c->duration = (version == 1) ? avio_rb64(pb) : avio_rb32(pb); /* duration */
1265 // set the AVCodecContext duration because the duration of individual tracks
1266 // may be inaccurate
1267 if (c->time_scale > 0 && !c->trex_data)
1268 c->fc->duration = av_rescale(c->duration, AV_TIME_BASE, c->time_scale);
1269 avio_rb32(pb); /* preferred scale */
1271 avio_rb16(pb); /* preferred volume */
1273 avio_skip(pb, 10); /* reserved */
1275 /* movie display matrix, store it in main context and use it later on */
1276 for (i = 0; i < 3; i++) {
1277 c->movie_display_matrix[i][0] = avio_rb32(pb); // 16.16 fixed point
1278 c->movie_display_matrix[i][1] = avio_rb32(pb); // 16.16 fixed point
1279 c->movie_display_matrix[i][2] = avio_rb32(pb); // 2.30 fixed point
1282 avio_rb32(pb); /* preview time */
1283 avio_rb32(pb); /* preview duration */
1284 avio_rb32(pb); /* poster time */
1285 avio_rb32(pb); /* selection time */
1286 avio_rb32(pb); /* selection duration */
1287 avio_rb32(pb); /* current time */
1288 avio_rb32(pb); /* next track ID */
1293 static int mov_read_enda(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1298 if (c->fc->nb_streams < 1)
1300 st = c->fc->streams[c->fc->nb_streams-1];
1302 little_endian = avio_rb16(pb) & 0xFF;
1303 av_log(c->fc, AV_LOG_TRACE, "enda %d\n", little_endian);
1304 if (little_endian == 1) {
1305 switch (st->codecpar->codec_id) {
1306 case AV_CODEC_ID_PCM_S24BE:
1307 st->codecpar->codec_id = AV_CODEC_ID_PCM_S24LE;
1309 case AV_CODEC_ID_PCM_S32BE:
1310 st->codecpar->codec_id = AV_CODEC_ID_PCM_S32LE;
1312 case AV_CODEC_ID_PCM_F32BE:
1313 st->codecpar->codec_id = AV_CODEC_ID_PCM_F32LE;
1315 case AV_CODEC_ID_PCM_F64BE:
1316 st->codecpar->codec_id = AV_CODEC_ID_PCM_F64LE;
1325 static int mov_read_colr(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1328 char color_parameter_type[5] = { 0 };
1329 uint16_t color_primaries, color_trc, color_matrix;
1332 if (c->fc->nb_streams < 1)
1334 st = c->fc->streams[c->fc->nb_streams - 1];
1336 ret = ffio_read_size(pb, color_parameter_type, 4);
1339 if (strncmp(color_parameter_type, "nclx", 4) &&
1340 strncmp(color_parameter_type, "nclc", 4)) {
1341 av_log(c->fc, AV_LOG_WARNING, "unsupported color_parameter_type %s\n",
1342 color_parameter_type);
1346 color_primaries = avio_rb16(pb);
1347 color_trc = avio_rb16(pb);
1348 color_matrix = avio_rb16(pb);
1350 av_log(c->fc, AV_LOG_TRACE,
1351 "%s: pri %d trc %d matrix %d",
1352 color_parameter_type, color_primaries, color_trc, color_matrix);
1354 if (!strncmp(color_parameter_type, "nclx", 4)) {
1355 uint8_t color_range = avio_r8(pb) >> 7;
1356 av_log(c->fc, AV_LOG_TRACE, " full %"PRIu8"", color_range);
1358 st->codecpar->color_range = AVCOL_RANGE_JPEG;
1360 st->codecpar->color_range = AVCOL_RANGE_MPEG;
1363 if (!av_color_primaries_name(color_primaries))
1364 color_primaries = AVCOL_PRI_UNSPECIFIED;
1365 if (!av_color_transfer_name(color_trc))
1366 color_trc = AVCOL_TRC_UNSPECIFIED;
1367 if (!av_color_space_name(color_matrix))
1368 color_matrix = AVCOL_SPC_UNSPECIFIED;
1370 st->codecpar->color_primaries = color_primaries;
1371 st->codecpar->color_trc = color_trc;
1372 st->codecpar->color_space = color_matrix;
1373 av_log(c->fc, AV_LOG_TRACE, "\n");
1378 static int mov_read_fiel(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1381 unsigned mov_field_order;
1382 enum AVFieldOrder decoded_field_order = AV_FIELD_UNKNOWN;
1384 if (c->fc->nb_streams < 1) // will happen with jp2 files
1386 st = c->fc->streams[c->fc->nb_streams-1];
1388 return AVERROR_INVALIDDATA;
1389 mov_field_order = avio_rb16(pb);
1390 if ((mov_field_order & 0xFF00) == 0x0100)
1391 decoded_field_order = AV_FIELD_PROGRESSIVE;
1392 else if ((mov_field_order & 0xFF00) == 0x0200) {
1393 switch (mov_field_order & 0xFF) {
1394 case 0x01: decoded_field_order = AV_FIELD_TT;
1396 case 0x06: decoded_field_order = AV_FIELD_BB;
1398 case 0x09: decoded_field_order = AV_FIELD_TB;
1400 case 0x0E: decoded_field_order = AV_FIELD_BT;
1404 if (decoded_field_order == AV_FIELD_UNKNOWN && mov_field_order) {
1405 av_log(NULL, AV_LOG_ERROR, "Unknown MOV field order 0x%04x\n", mov_field_order);
1407 st->codecpar->field_order = decoded_field_order;
1412 static int mov_realloc_extradata(AVCodecParameters *par, MOVAtom atom)
1415 uint64_t size = (uint64_t)par->extradata_size + atom.size + 8 + AV_INPUT_BUFFER_PADDING_SIZE;
1416 if (size > INT_MAX || (uint64_t)atom.size > INT_MAX)
1417 return AVERROR_INVALIDDATA;
1418 if ((err = av_reallocp(&par->extradata, size)) < 0) {
1419 par->extradata_size = 0;
1422 par->extradata_size = size - AV_INPUT_BUFFER_PADDING_SIZE;
1426 /* Read a whole atom into the extradata return the size of the atom read, possibly truncated if != atom.size */
1427 static int64_t mov_read_atom_into_extradata(MOVContext *c, AVIOContext *pb, MOVAtom atom,
1428 AVCodecParameters *par, uint8_t *buf)
1430 int64_t result = atom.size;
1433 AV_WB32(buf , atom.size + 8);
1434 AV_WL32(buf + 4, atom.type);
1435 err = ffio_read_size(pb, buf + 8, atom.size);
1437 par->extradata_size -= atom.size;
1439 } else if (err < atom.size) {
1440 av_log(c->fc, AV_LOG_WARNING, "truncated extradata\n");
1441 par->extradata_size -= atom.size - err;
1444 memset(buf + 8 + err, 0, AV_INPUT_BUFFER_PADDING_SIZE);
1448 /* FIXME modify QDM2/SVQ3/H.264 decoders to take full atom as extradata */
1449 static int mov_read_extradata(MOVContext *c, AVIOContext *pb, MOVAtom atom,
1450 enum AVCodecID codec_id)
1453 uint64_t original_size;
1456 if (c->fc->nb_streams < 1) // will happen with jp2 files
1458 st = c->fc->streams[c->fc->nb_streams-1];
1460 if (st->codecpar->codec_id != codec_id)
1461 return 0; /* unexpected codec_id - don't mess with extradata */
1463 original_size = st->codecpar->extradata_size;
1464 err = mov_realloc_extradata(st->codecpar, atom);
1468 err = mov_read_atom_into_extradata(c, pb, atom, st->codecpar, st->codecpar->extradata + original_size);
1471 return 0; // Note: this is the original behavior to ignore truncation.
1474 /* wrapper functions for reading ALAC/AVS/MJPEG/MJPEG2000 extradata atoms only for those codecs */
1475 static int mov_read_alac(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1477 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_ALAC);
1480 static int mov_read_avss(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1482 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_AVS);
1485 static int mov_read_jp2h(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1487 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_JPEG2000);
1490 static int mov_read_dpxe(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1492 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_R10K);
1495 static int mov_read_avid(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1497 int ret = mov_read_extradata(c, pb, atom, AV_CODEC_ID_AVUI);
1499 ret = mov_read_extradata(c, pb, atom, AV_CODEC_ID_DNXHD);
1503 static int mov_read_targa_y216(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1505 int ret = mov_read_extradata(c, pb, atom, AV_CODEC_ID_TARGA_Y216);
1507 if (!ret && c->fc->nb_streams >= 1) {
1508 AVCodecParameters *par = c->fc->streams[c->fc->nb_streams-1]->codecpar;
1509 if (par->extradata_size >= 40) {
1510 par->height = AV_RB16(&par->extradata[36]);
1511 par->width = AV_RB16(&par->extradata[38]);
1517 static int mov_read_ares(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1519 if (c->fc->nb_streams >= 1) {
1520 AVCodecParameters *par = c->fc->streams[c->fc->nb_streams-1]->codecpar;
1521 if (par->codec_tag == MKTAG('A', 'V', 'i', 'n') &&
1522 par->codec_id == AV_CODEC_ID_H264 &&
1526 cid = avio_rb16(pb);
1527 /* For AVID AVCI50, force width of 1440 to be able to select the correct SPS and PPS */
1528 if (cid == 0xd4d || cid == 0xd4e)
1531 } else if ((par->codec_tag == MKTAG('A', 'V', 'd', '1') ||
1532 par->codec_tag == MKTAG('A', 'V', 'd', 'n')) &&
1536 num = avio_rb32(pb);
1537 den = avio_rb32(pb);
1538 if (num <= 0 || den <= 0)
1540 switch (avio_rb32(pb)) {
1542 if (den >= INT_MAX / 2)
1546 c->fc->streams[c->fc->nb_streams-1]->display_aspect_ratio.num = num;
1547 c->fc->streams[c->fc->nb_streams-1]->display_aspect_ratio.den = den;
1554 return mov_read_avid(c, pb, atom);
1557 static int mov_read_aclr(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1561 uint64_t original_size;
1562 if (c->fc->nb_streams >= 1) {
1563 AVCodecParameters *par = c->fc->streams[c->fc->nb_streams-1]->codecpar;
1564 if (par->codec_id == AV_CODEC_ID_H264)
1566 if (atom.size == 16) {
1567 original_size = par->extradata_size;
1568 ret = mov_realloc_extradata(par, atom);
1570 length = mov_read_atom_into_extradata(c, pb, atom, par, par->extradata + original_size);
1571 if (length == atom.size) {
1572 const uint8_t range_value = par->extradata[original_size + 19];
1573 switch (range_value) {
1575 par->color_range = AVCOL_RANGE_MPEG;
1578 par->color_range = AVCOL_RANGE_JPEG;
1581 av_log(c, AV_LOG_WARNING, "ignored unknown aclr value (%d)\n", range_value);
1584 ff_dlog(c, "color_range: %d\n", par->color_range);
1586 /* For some reason the whole atom was not added to the extradata */
1587 av_log(c, AV_LOG_ERROR, "aclr not decoded - incomplete atom\n");
1590 av_log(c, AV_LOG_ERROR, "aclr not decoded - unable to add atom to extradata\n");
1593 av_log(c, AV_LOG_WARNING, "aclr not decoded - unexpected size %"PRId64"\n", atom.size);
1600 static int mov_read_svq3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1602 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_SVQ3);
1605 static int mov_read_wave(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1610 if (c->fc->nb_streams < 1)
1612 st = c->fc->streams[c->fc->nb_streams-1];
1614 if ((uint64_t)atom.size > (1<<30))
1615 return AVERROR_INVALIDDATA;
1617 if (st->codecpar->codec_id == AV_CODEC_ID_QDM2 ||
1618 st->codecpar->codec_id == AV_CODEC_ID_QDMC ||
1619 st->codecpar->codec_id == AV_CODEC_ID_SPEEX) {
1620 // pass all frma atom to codec, needed at least for QDMC and QDM2
1621 av_freep(&st->codecpar->extradata);
1622 ret = ff_get_extradata(c->fc, st->codecpar, pb, atom.size);
1625 } else if (atom.size > 8) { /* to read frma, esds atoms */
1626 if (st->codecpar->codec_id == AV_CODEC_ID_ALAC && atom.size >= 24) {
1628 ret = ffio_ensure_seekback(pb, 8);
1631 buffer = avio_rb64(pb);
1633 if ( (buffer & 0xFFFFFFFF) == MKBETAG('f','r','m','a')
1634 && buffer >> 32 <= atom.size
1635 && buffer >> 32 >= 8) {
1638 } else if (!st->codecpar->extradata_size) {
1639 #define ALAC_EXTRADATA_SIZE 36
1640 st->codecpar->extradata = av_mallocz(ALAC_EXTRADATA_SIZE + AV_INPUT_BUFFER_PADDING_SIZE);
1641 if (!st->codecpar->extradata)
1642 return AVERROR(ENOMEM);
1643 st->codecpar->extradata_size = ALAC_EXTRADATA_SIZE;
1644 AV_WB32(st->codecpar->extradata , ALAC_EXTRADATA_SIZE);
1645 AV_WB32(st->codecpar->extradata + 4, MKTAG('a','l','a','c'));
1646 AV_WB64(st->codecpar->extradata + 12, buffer);
1647 avio_read(pb, st->codecpar->extradata + 20, 16);
1648 avio_skip(pb, atom.size - 24);
1652 if ((ret = mov_read_default(c, pb, atom)) < 0)
1655 avio_skip(pb, atom.size);
1660 * This function reads atom content and puts data in extradata without tag
1661 * nor size unlike mov_read_extradata.
1663 static int mov_read_glbl(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1668 if (c->fc->nb_streams < 1)
1670 st = c->fc->streams[c->fc->nb_streams-1];
1672 if ((uint64_t)atom.size > (1<<30))
1673 return AVERROR_INVALIDDATA;
1675 if (atom.size >= 10) {
1676 // Broken files created by legacy versions of libavformat will
1677 // wrap a whole fiel atom inside of a glbl atom.
1678 unsigned size = avio_rb32(pb);
1679 unsigned type = avio_rl32(pb);
1680 avio_seek(pb, -8, SEEK_CUR);
1681 if (type == MKTAG('f','i','e','l') && size == atom.size)
1682 return mov_read_default(c, pb, atom);
1684 if (st->codecpar->extradata_size > 1 && st->codecpar->extradata) {
1685 av_log(c, AV_LOG_WARNING, "ignoring multiple glbl\n");
1688 av_freep(&st->codecpar->extradata);
1689 ret = ff_get_extradata(c->fc, st->codecpar, pb, atom.size);
1696 static int mov_read_dvc1(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1699 uint8_t profile_level;
1702 if (c->fc->nb_streams < 1)
1704 st = c->fc->streams[c->fc->nb_streams-1];
1706 if (atom.size >= (1<<28) || atom.size < 7)
1707 return AVERROR_INVALIDDATA;
1709 profile_level = avio_r8(pb);
1710 if ((profile_level & 0xf0) != 0xc0)
1713 avio_seek(pb, 6, SEEK_CUR);
1714 av_freep(&st->codecpar->extradata);
1715 ret = ff_get_extradata(c->fc, st->codecpar, pb, atom.size - 7);
1723 * An strf atom is a BITMAPINFOHEADER struct. This struct is 40 bytes itself,
1724 * but can have extradata appended at the end after the 40 bytes belonging
1727 static int mov_read_strf(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1732 if (c->fc->nb_streams < 1)
1734 if (atom.size <= 40)
1736 st = c->fc->streams[c->fc->nb_streams-1];
1738 if ((uint64_t)atom.size > (1<<30))
1739 return AVERROR_INVALIDDATA;
1742 av_freep(&st->codecpar->extradata);
1743 ret = ff_get_extradata(c->fc, st->codecpar, pb, atom.size - 40);
1750 static int mov_read_stco(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1753 MOVStreamContext *sc;
1754 unsigned int i, entries;
1756 if (c->fc->nb_streams < 1)
1758 st = c->fc->streams[c->fc->nb_streams-1];
1761 avio_r8(pb); /* version */
1762 avio_rb24(pb); /* flags */
1764 entries = avio_rb32(pb);
1769 if (sc->chunk_offsets)
1770 av_log(c->fc, AV_LOG_WARNING, "Duplicated STCO atom\n");
1771 av_free(sc->chunk_offsets);
1772 sc->chunk_count = 0;
1773 sc->chunk_offsets = av_malloc_array(entries, sizeof(*sc->chunk_offsets));
1774 if (!sc->chunk_offsets)
1775 return AVERROR(ENOMEM);
1776 sc->chunk_count = entries;
1778 if (atom.type == MKTAG('s','t','c','o'))
1779 for (i = 0; i < entries && !pb->eof_reached; i++)
1780 sc->chunk_offsets[i] = avio_rb32(pb);
1781 else if (atom.type == MKTAG('c','o','6','4'))
1782 for (i = 0; i < entries && !pb->eof_reached; i++)
1783 sc->chunk_offsets[i] = avio_rb64(pb);
1785 return AVERROR_INVALIDDATA;
1787 sc->chunk_count = i;
1789 if (pb->eof_reached)
1796 * Compute codec id for 'lpcm' tag.
1797 * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
1799 enum AVCodecID ff_mov_get_lpcm_codec_id(int bps, int flags)
1806 return ff_get_pcm_codec_id(bps, flags & 1, flags & 2, flags & 4 ? -1 : 0);
1809 static int mov_codec_id(AVStream *st, uint32_t format)
1811 int id = ff_codec_get_id(ff_codec_movaudio_tags, format);
1814 ((format & 0xFFFF) == 'm' + ('s' << 8) ||
1815 (format & 0xFFFF) == 'T' + ('S' << 8)))
1816 id = ff_codec_get_id(ff_codec_wav_tags, av_bswap32(format) & 0xFFFF);
1818 if (st->codecpar->codec_type != AVMEDIA_TYPE_VIDEO && id > 0) {
1819 st->codecpar->codec_type = AVMEDIA_TYPE_AUDIO;
1820 } else if (st->codecpar->codec_type != AVMEDIA_TYPE_AUDIO &&
1821 /* skip old ASF MPEG-4 tag */
1822 format && format != MKTAG('m','p','4','s')) {
1823 id = ff_codec_get_id(ff_codec_movvideo_tags, format);
1825 id = ff_codec_get_id(ff_codec_bmp_tags, format);
1827 st->codecpar->codec_type = AVMEDIA_TYPE_VIDEO;
1828 else if (st->codecpar->codec_type == AVMEDIA_TYPE_DATA ||
1829 (st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE &&
1830 st->codecpar->codec_id == AV_CODEC_ID_NONE)) {
1831 id = ff_codec_get_id(ff_codec_movsubtitle_tags, format);
1833 st->codecpar->codec_type = AVMEDIA_TYPE_SUBTITLE;
1837 st->codecpar->codec_tag = format;
1842 static void mov_parse_stsd_video(MOVContext *c, AVIOContext *pb,
1843 AVStream *st, MOVStreamContext *sc)
1845 uint8_t codec_name[32] = { 0 };
1849 /* The first 16 bytes of the video sample description are already
1850 * read in ff_mov_read_stsd_entries() */
1851 stsd_start = avio_tell(pb) - 16;
1853 avio_rb16(pb); /* version */
1854 avio_rb16(pb); /* revision level */
1855 avio_rb32(pb); /* vendor */
1856 avio_rb32(pb); /* temporal quality */
1857 avio_rb32(pb); /* spatial quality */
1859 st->codecpar->width = avio_rb16(pb); /* width */
1860 st->codecpar->height = avio_rb16(pb); /* height */
1862 avio_rb32(pb); /* horiz resolution */
1863 avio_rb32(pb); /* vert resolution */
1864 avio_rb32(pb); /* data size, always 0 */
1865 avio_rb16(pb); /* frames per samples */
1867 len = avio_r8(pb); /* codec name, pascal string */
1870 mov_read_mac_string(c, pb, len, codec_name, sizeof(codec_name));
1872 avio_skip(pb, 31 - len);
1875 av_dict_set(&st->metadata, "encoder", codec_name, 0);
1877 /* codec_tag YV12 triggers an UV swap in rawdec.c */
1878 if (!memcmp(codec_name, "Planar Y'CbCr 8-bit 4:2:0", 25)) {
1879 st->codecpar->codec_tag = MKTAG('I', '4', '2', '0');
1880 st->codecpar->width &= ~1;
1881 st->codecpar->height &= ~1;
1883 /* Flash Media Server uses tag H.263 with Sorenson Spark */
1884 if (st->codecpar->codec_tag == MKTAG('H','2','6','3') &&
1885 !memcmp(codec_name, "Sorenson H263", 13))
1886 st->codecpar->codec_id = AV_CODEC_ID_FLV1;
1888 st->codecpar->bits_per_coded_sample = avio_rb16(pb); /* depth */
1890 avio_seek(pb, stsd_start, SEEK_SET);
1892 if (ff_get_qtpalette(st->codecpar->codec_id, pb, sc->palette)) {
1893 st->codecpar->bits_per_coded_sample &= 0x1F;
1894 sc->has_palette = 1;
1898 static void mov_parse_stsd_audio(MOVContext *c, AVIOContext *pb,
1899 AVStream *st, MOVStreamContext *sc)
1901 int bits_per_sample, flags;
1902 uint16_t version = avio_rb16(pb);
1903 AVDictionaryEntry *compatible_brands = av_dict_get(c->fc->metadata, "compatible_brands", NULL, AV_DICT_MATCH_CASE);
1905 avio_rb16(pb); /* revision level */
1906 avio_rb32(pb); /* vendor */
1908 st->codecpar->channels = avio_rb16(pb); /* channel count */
1909 st->codecpar->bits_per_coded_sample = avio_rb16(pb); /* sample size */
1910 av_log(c->fc, AV_LOG_TRACE, "audio channels %d\n", st->codecpar->channels);
1912 sc->audio_cid = avio_rb16(pb);
1913 avio_rb16(pb); /* packet size = 0 */
1915 st->codecpar->sample_rate = ((avio_rb32(pb) >> 16));
1917 // Read QT version 1 fields. In version 0 these do not exist.
1918 av_log(c->fc, AV_LOG_TRACE, "version =%d, isom =%d\n", version, c->isom);
1920 (compatible_brands && strstr(compatible_brands->value, "qt "))) {
1923 sc->samples_per_frame = avio_rb32(pb);
1924 avio_rb32(pb); /* bytes per packet */
1925 sc->bytes_per_frame = avio_rb32(pb);
1926 avio_rb32(pb); /* bytes per sample */
1927 } else if (version == 2) {
1928 avio_rb32(pb); /* sizeof struct only */
1929 st->codecpar->sample_rate = av_int2double(avio_rb64(pb));
1930 st->codecpar->channels = avio_rb32(pb);
1931 avio_rb32(pb); /* always 0x7F000000 */
1932 st->codecpar->bits_per_coded_sample = avio_rb32(pb);
1934 flags = avio_rb32(pb); /* lpcm format specific flag */
1935 sc->bytes_per_frame = avio_rb32(pb);
1936 sc->samples_per_frame = avio_rb32(pb);
1937 if (st->codecpar->codec_tag == MKTAG('l','p','c','m'))
1938 st->codecpar->codec_id =
1939 ff_mov_get_lpcm_codec_id(st->codecpar->bits_per_coded_sample,
1942 if (version == 0 || (version == 1 && sc->audio_cid != -2)) {
1943 /* can't correctly handle variable sized packet as audio unit */
1944 switch (st->codecpar->codec_id) {
1945 case AV_CODEC_ID_MP2:
1946 case AV_CODEC_ID_MP3:
1947 st->need_parsing = AVSTREAM_PARSE_FULL;
1953 if (sc->format == 0) {
1954 if (st->codecpar->bits_per_coded_sample == 8)
1955 st->codecpar->codec_id = mov_codec_id(st, MKTAG('r','a','w',' '));
1956 else if (st->codecpar->bits_per_coded_sample == 16)
1957 st->codecpar->codec_id = mov_codec_id(st, MKTAG('t','w','o','s'));
1960 switch (st->codecpar->codec_id) {
1961 case AV_CODEC_ID_PCM_S8:
1962 case AV_CODEC_ID_PCM_U8:
1963 if (st->codecpar->bits_per_coded_sample == 16)
1964 st->codecpar->codec_id = AV_CODEC_ID_PCM_S16BE;
1966 case AV_CODEC_ID_PCM_S16LE:
1967 case AV_CODEC_ID_PCM_S16BE:
1968 if (st->codecpar->bits_per_coded_sample == 8)
1969 st->codecpar->codec_id = AV_CODEC_ID_PCM_S8;
1970 else if (st->codecpar->bits_per_coded_sample == 24)
1971 st->codecpar->codec_id =
1972 st->codecpar->codec_id == AV_CODEC_ID_PCM_S16BE ?
1973 AV_CODEC_ID_PCM_S24BE : AV_CODEC_ID_PCM_S24LE;
1974 else if (st->codecpar->bits_per_coded_sample == 32)
1975 st->codecpar->codec_id =
1976 st->codecpar->codec_id == AV_CODEC_ID_PCM_S16BE ?
1977 AV_CODEC_ID_PCM_S32BE : AV_CODEC_ID_PCM_S32LE;
1979 /* set values for old format before stsd version 1 appeared */
1980 case AV_CODEC_ID_MACE3:
1981 sc->samples_per_frame = 6;
1982 sc->bytes_per_frame = 2 * st->codecpar->channels;
1984 case AV_CODEC_ID_MACE6:
1985 sc->samples_per_frame = 6;
1986 sc->bytes_per_frame = 1 * st->codecpar->channels;
1988 case AV_CODEC_ID_ADPCM_IMA_QT:
1989 sc->samples_per_frame = 64;
1990 sc->bytes_per_frame = 34 * st->codecpar->channels;
1992 case AV_CODEC_ID_GSM:
1993 sc->samples_per_frame = 160;
1994 sc->bytes_per_frame = 33;
2000 bits_per_sample = av_get_bits_per_sample(st->codecpar->codec_id);
2001 if (bits_per_sample) {
2002 st->codecpar->bits_per_coded_sample = bits_per_sample;
2003 sc->sample_size = (bits_per_sample >> 3) * st->codecpar->channels;
2007 static void mov_parse_stsd_subtitle(MOVContext *c, AVIOContext *pb,
2008 AVStream *st, MOVStreamContext *sc,
2011 // ttxt stsd contains display flags, justification, background
2012 // color, fonts, and default styles, so fake an atom to read it
2013 MOVAtom fake_atom = { .size = size };
2014 // mp4s contains a regular esds atom
2015 if (st->codecpar->codec_tag != AV_RL32("mp4s"))
2016 mov_read_glbl(c, pb, fake_atom);
2017 st->codecpar->width = sc->width;
2018 st->codecpar->height = sc->height;
2021 static uint32_t yuv_to_rgba(uint32_t ycbcr)
2026 y = (ycbcr >> 16) & 0xFF;
2027 cr = (ycbcr >> 8) & 0xFF;
2030 b = av_clip_uint8((1164 * (y - 16) + 2018 * (cb - 128)) / 1000);
2031 g = av_clip_uint8((1164 * (y - 16) - 813 * (cr - 128) - 391 * (cb - 128)) / 1000);
2032 r = av_clip_uint8((1164 * (y - 16) + 1596 * (cr - 128) ) / 1000);
2034 return (r << 16) | (g << 8) | b;
2037 static int mov_rewrite_dvd_sub_extradata(AVStream *st)
2039 char buf[256] = {0};
2040 uint8_t *src = st->codecpar->extradata;
2043 if (st->codecpar->extradata_size != 64)
2046 if (st->codecpar->width > 0 && st->codecpar->height > 0)
2047 snprintf(buf, sizeof(buf), "size: %dx%d\n",
2048 st->codecpar->width, st->codecpar->height);
2049 av_strlcat(buf, "palette: ", sizeof(buf));
2051 for (i = 0; i < 16; i++) {
2052 uint32_t yuv = AV_RB32(src + i * 4);
2053 uint32_t rgba = yuv_to_rgba(yuv);
2055 av_strlcatf(buf, sizeof(buf), "%06"PRIx32"%s", rgba, i != 15 ? ", " : "");
2058 if (av_strlcat(buf, "\n", sizeof(buf)) >= sizeof(buf))
2061 av_freep(&st->codecpar->extradata);
2062 st->codecpar->extradata_size = 0;
2063 st->codecpar->extradata = av_mallocz(strlen(buf) + AV_INPUT_BUFFER_PADDING_SIZE);
2064 if (!st->codecpar->extradata)
2065 return AVERROR(ENOMEM);
2066 st->codecpar->extradata_size = strlen(buf);
2067 memcpy(st->codecpar->extradata, buf, st->codecpar->extradata_size);
2072 static int mov_parse_stsd_data(MOVContext *c, AVIOContext *pb,
2073 AVStream *st, MOVStreamContext *sc,
2078 if (st->codecpar->codec_tag == MKTAG('t','m','c','d')) {
2079 if ((int)size != size)
2080 return AVERROR(ENOMEM);
2082 ret = ff_get_extradata(c->fc, st->codecpar, pb, size);
2086 MOVStreamContext *tmcd_ctx = st->priv_data;
2088 val = AV_RB32(st->codecpar->extradata + 4);
2089 tmcd_ctx->tmcd_flags = val;
2090 st->avg_frame_rate.num = st->codecpar->extradata[16]; /* number of frame */
2091 st->avg_frame_rate.den = 1;
2092 #if FF_API_LAVF_AVCTX
2093 FF_DISABLE_DEPRECATION_WARNINGS
2094 st->codec->time_base = av_inv_q(st->avg_frame_rate);
2095 FF_ENABLE_DEPRECATION_WARNINGS
2097 /* adjust for per frame dur in counter mode */
2098 if (tmcd_ctx->tmcd_flags & 0x0008) {
2099 int timescale = AV_RB32(st->codecpar->extradata + 8);
2100 int framedur = AV_RB32(st->codecpar->extradata + 12);
2101 st->avg_frame_rate.num *= timescale;
2102 st->avg_frame_rate.den *= framedur;
2103 #if FF_API_LAVF_AVCTX
2104 FF_DISABLE_DEPRECATION_WARNINGS
2105 st->codec->time_base.den *= timescale;
2106 st->codec->time_base.num *= framedur;
2107 FF_ENABLE_DEPRECATION_WARNINGS
2111 uint32_t len = AV_RB32(st->codecpar->extradata + 18); /* name atom length */
2112 uint32_t format = AV_RB32(st->codecpar->extradata + 22);
2113 if (format == AV_RB32("name") && (int64_t)size >= (int64_t)len + 18) {
2114 uint16_t str_size = AV_RB16(st->codecpar->extradata + 26); /* string length */
2115 if (str_size > 0 && size >= (int)str_size + 26) {
2116 char *reel_name = av_malloc(str_size + 1);
2118 return AVERROR(ENOMEM);
2119 memcpy(reel_name, st->codecpar->extradata + 30, str_size);
2120 reel_name[str_size] = 0; /* Add null terminator */
2121 /* don't add reel_name if emtpy string */
2122 if (*reel_name == 0) {
2125 av_dict_set(&st->metadata, "reel_name", reel_name, AV_DICT_DONT_STRDUP_VAL);
2132 /* other codec type, just skip (rtp, mp4s ...) */
2133 avio_skip(pb, size);
2138 static int mov_finalize_stsd_codec(MOVContext *c, AVIOContext *pb,
2139 AVStream *st, MOVStreamContext *sc)
2141 if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO &&
2142 !st->codecpar->sample_rate && sc->time_scale > 1)
2143 st->codecpar->sample_rate = sc->time_scale;
2145 /* special codec parameters handling */
2146 switch (st->codecpar->codec_id) {
2147 #if CONFIG_DV_DEMUXER
2148 case AV_CODEC_ID_DVAUDIO:
2149 c->dv_fctx = avformat_alloc_context();
2151 av_log(c->fc, AV_LOG_ERROR, "dv demux context alloc error\n");
2152 return AVERROR(ENOMEM);
2154 c->dv_demux = avpriv_dv_init_demux(c->dv_fctx);
2156 av_log(c->fc, AV_LOG_ERROR, "dv demux context init error\n");
2157 return AVERROR(ENOMEM);
2159 sc->dv_audio_container = 1;
2160 st->codecpar->codec_id = AV_CODEC_ID_PCM_S16LE;
2163 /* no ifdef since parameters are always those */
2164 case AV_CODEC_ID_QCELP:
2165 st->codecpar->channels = 1;
2166 // force sample rate for qcelp when not stored in mov
2167 if (st->codecpar->codec_tag != MKTAG('Q','c','l','p'))
2168 st->codecpar->sample_rate = 8000;
2169 // FIXME: Why is the following needed for some files?
2170 sc->samples_per_frame = 160;
2171 if (!sc->bytes_per_frame)
2172 sc->bytes_per_frame = 35;
2174 case AV_CODEC_ID_AMR_NB:
2175 st->codecpar->channels = 1;
2176 /* force sample rate for amr, stsd in 3gp does not store sample rate */
2177 st->codecpar->sample_rate = 8000;
2179 case AV_CODEC_ID_AMR_WB:
2180 st->codecpar->channels = 1;
2181 st->codecpar->sample_rate = 16000;
2183 case AV_CODEC_ID_MP2:
2184 case AV_CODEC_ID_MP3:
2185 /* force type after stsd for m1a hdlr */
2186 st->codecpar->codec_type = AVMEDIA_TYPE_AUDIO;
2188 case AV_CODEC_ID_GSM:
2189 case AV_CODEC_ID_ADPCM_MS:
2190 case AV_CODEC_ID_ADPCM_IMA_WAV:
2191 case AV_CODEC_ID_ILBC:
2192 case AV_CODEC_ID_MACE3:
2193 case AV_CODEC_ID_MACE6:
2194 case AV_CODEC_ID_QDM2:
2195 st->codecpar->block_align = sc->bytes_per_frame;
2197 case AV_CODEC_ID_ALAC:
2198 if (st->codecpar->extradata_size == 36) {
2199 st->codecpar->channels = AV_RB8 (st->codecpar->extradata + 21);
2200 st->codecpar->sample_rate = AV_RB32(st->codecpar->extradata + 32);
2203 case AV_CODEC_ID_AC3:
2204 case AV_CODEC_ID_EAC3:
2205 case AV_CODEC_ID_MPEG1VIDEO:
2206 case AV_CODEC_ID_VC1:
2207 case AV_CODEC_ID_VP9:
2208 st->need_parsing = AVSTREAM_PARSE_FULL;
2216 static int mov_skip_multiple_stsd(MOVContext *c, AVIOContext *pb,
2217 int codec_tag, int format,
2220 int video_codec_id = ff_codec_get_id(ff_codec_movvideo_tags, format);
2223 (codec_tag != format &&
2224 // AVID 1:1 samples with differing data format and codec tag exist
2225 (codec_tag != AV_RL32("AV1x") || format != AV_RL32("AVup")) &&
2226 // prores is allowed to have differing data format and codec tag
2227 codec_tag != AV_RL32("apcn") && codec_tag != AV_RL32("apch") &&
2229 codec_tag != AV_RL32("dvpp") && codec_tag != AV_RL32("dvcp") &&
2230 (c->fc->video_codec_id ? video_codec_id != c->fc->video_codec_id
2231 : codec_tag != MKTAG('j','p','e','g')))) {
2232 /* Multiple fourcc, we skip JPEG. This is not correct, we should
2233 * export it as a separate AVStream but this needs a few changes
2234 * in the MOV demuxer, patch welcome. */
2236 av_log(c->fc, AV_LOG_WARNING, "multiple fourcc not supported\n");
2237 avio_skip(pb, size);
2244 int ff_mov_read_stsd_entries(MOVContext *c, AVIOContext *pb, int entries)
2247 MOVStreamContext *sc;
2248 int pseudo_stream_id;
2250 if (c->fc->nb_streams < 1)
2252 st = c->fc->streams[c->fc->nb_streams-1];
2255 for (pseudo_stream_id = 0;
2256 pseudo_stream_id < entries && !pb->eof_reached;
2257 pseudo_stream_id++) {
2258 //Parsing Sample description table
2260 int ret, dref_id = 1;
2261 MOVAtom a = { AV_RL32("stsd") };
2262 int64_t start_pos = avio_tell(pb);
2263 int64_t size = avio_rb32(pb); /* size */
2264 uint32_t format = avio_rl32(pb); /* data format */
2267 avio_rb32(pb); /* reserved */
2268 avio_rb16(pb); /* reserved */
2269 dref_id = avio_rb16(pb);
2270 } else if (size <= 7) {
2271 av_log(c->fc, AV_LOG_ERROR,
2272 "invalid size %"PRId64" in stsd\n", size);
2273 return AVERROR_INVALIDDATA;
2276 if (mov_skip_multiple_stsd(c, pb, st->codecpar->codec_tag, format,
2277 size - (avio_tell(pb) - start_pos)))
2280 sc->pseudo_stream_id = st->codecpar->codec_tag ? -1 : pseudo_stream_id;
2281 sc->dref_id= dref_id;
2282 sc->format = format;
2284 id = mov_codec_id(st, format);
2286 av_log(c->fc, AV_LOG_TRACE,
2287 "size=%"PRId64" 4CC=%s codec_type=%d\n", size,
2288 av_fourcc2str(format), st->codecpar->codec_type);
2290 if (st->codecpar->codec_type==AVMEDIA_TYPE_VIDEO) {
2291 st->codecpar->codec_id = id;
2292 mov_parse_stsd_video(c, pb, st, sc);
2293 } else if (st->codecpar->codec_type==AVMEDIA_TYPE_AUDIO) {
2294 st->codecpar->codec_id = id;
2295 mov_parse_stsd_audio(c, pb, st, sc);
2296 if (st->codecpar->sample_rate < 0) {
2297 av_log(c->fc, AV_LOG_ERROR, "Invalid sample rate %d\n", st->codecpar->sample_rate);
2298 return AVERROR_INVALIDDATA;
2300 } else if (st->codecpar->codec_type==AVMEDIA_TYPE_SUBTITLE){
2301 st->codecpar->codec_id = id;
2302 mov_parse_stsd_subtitle(c, pb, st, sc,
2303 size - (avio_tell(pb) - start_pos));
2305 ret = mov_parse_stsd_data(c, pb, st, sc,
2306 size - (avio_tell(pb) - start_pos));
2310 /* this will read extra atoms at the end (wave, alac, damr, avcC, hvcC, SMI ...) */
2311 a.size = size - (avio_tell(pb) - start_pos);
2313 if ((ret = mov_read_default(c, pb, a)) < 0)
2315 } else if (a.size > 0)
2316 avio_skip(pb, a.size);
2318 if (sc->extradata) {
2319 int extra_size = st->codecpar->extradata_size;
2321 /* Move the current stream extradata to the stream context one. */
2322 sc->extradata_size[pseudo_stream_id] = extra_size;
2323 sc->extradata[pseudo_stream_id] = av_malloc(extra_size + AV_INPUT_BUFFER_PADDING_SIZE);
2324 if (!sc->extradata[pseudo_stream_id])
2325 return AVERROR(ENOMEM);
2326 memcpy(sc->extradata[pseudo_stream_id], st->codecpar->extradata, extra_size);
2327 av_freep(&st->codecpar->extradata);
2328 st->codecpar->extradata_size = 0;
2332 if (pb->eof_reached)
2338 static int mov_read_stsd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2341 MOVStreamContext *sc;
2344 if (c->fc->nb_streams < 1)
2346 st = c->fc->streams[c->fc->nb_streams - 1];
2349 avio_r8(pb); /* version */
2350 avio_rb24(pb); /* flags */
2351 entries = avio_rb32(pb);
2354 av_log(c->fc, AV_LOG_ERROR, "invalid STSD entries %d\n", entries);
2355 return AVERROR_INVALIDDATA;
2358 if (sc->extradata) {
2359 av_log(c->fc, AV_LOG_ERROR, "Duplicate STSD\n");
2360 return AVERROR_INVALIDDATA;
2362 /* Prepare space for hosting multiple extradata. */
2363 sc->extradata = av_mallocz_array(entries, sizeof(*sc->extradata));
2364 sc->extradata_size = av_mallocz_array(entries, sizeof(*sc->extradata_size));
2365 if (!sc->extradata_size || !sc->extradata) {
2366 ret = AVERROR(ENOMEM);
2370 ret = ff_mov_read_stsd_entries(c, pb, entries);
2374 sc->stsd_count = entries;
2376 /* Restore back the primary extradata. */
2377 av_freep(&st->codecpar->extradata);
2378 st->codecpar->extradata_size = sc->extradata_size[0];
2379 if (sc->extradata_size[0]) {
2380 st->codecpar->extradata = av_mallocz(sc->extradata_size[0] + AV_INPUT_BUFFER_PADDING_SIZE);
2381 if (!st->codecpar->extradata)
2382 return AVERROR(ENOMEM);
2383 memcpy(st->codecpar->extradata, sc->extradata[0], sc->extradata_size[0]);
2386 return mov_finalize_stsd_codec(c, pb, st, sc);
2388 av_freep(&sc->extradata);
2389 av_freep(&sc->extradata_size);
2393 static int mov_read_stsc(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2396 MOVStreamContext *sc;
2397 unsigned int i, entries;
2399 if (c->fc->nb_streams < 1)
2401 st = c->fc->streams[c->fc->nb_streams-1];
2404 avio_r8(pb); /* version */
2405 avio_rb24(pb); /* flags */
2407 entries = avio_rb32(pb);
2409 av_log(c->fc, AV_LOG_TRACE, "track[%u].stsc.entries = %u\n", c->fc->nb_streams - 1, entries);
2414 av_log(c->fc, AV_LOG_WARNING, "Duplicated STSC atom\n");
2415 av_free(sc->stsc_data);
2417 sc->stsc_data = av_malloc_array(entries, sizeof(*sc->stsc_data));
2419 return AVERROR(ENOMEM);
2421 for (i = 0; i < entries && !pb->eof_reached; i++) {
2422 sc->stsc_data[i].first = avio_rb32(pb);
2423 sc->stsc_data[i].count = avio_rb32(pb);
2424 sc->stsc_data[i].id = avio_rb32(pb);
2429 if (pb->eof_reached)
2435 #define mov_stsc_index_valid(index, count) ((index) < (count) - 1)
2437 /* Compute the samples value for the stsc entry at the given index. */
2438 static inline int mov_get_stsc_samples(MOVStreamContext *sc, int index)
2442 if (mov_stsc_index_valid(index, sc->stsc_count))
2443 chunk_count = sc->stsc_data[index + 1].first - sc->stsc_data[index].first;
2445 chunk_count = sc->chunk_count - (sc->stsc_data[index].first - 1);
2447 return sc->stsc_data[index].count * chunk_count;
2450 static int mov_read_stps(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2453 MOVStreamContext *sc;
2454 unsigned i, entries;
2456 if (c->fc->nb_streams < 1)
2458 st = c->fc->streams[c->fc->nb_streams-1];
2461 avio_rb32(pb); // version + flags
2463 entries = avio_rb32(pb);
2465 av_log(c->fc, AV_LOG_WARNING, "Duplicated STPS atom\n");
2466 av_free(sc->stps_data);
2468 sc->stps_data = av_malloc_array(entries, sizeof(*sc->stps_data));
2470 return AVERROR(ENOMEM);
2472 for (i = 0; i < entries && !pb->eof_reached; i++) {
2473 sc->stps_data[i] = avio_rb32(pb);
2478 if (pb->eof_reached)
2484 static int mov_read_stss(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2487 MOVStreamContext *sc;
2488 unsigned int i, entries;
2490 if (c->fc->nb_streams < 1)
2492 st = c->fc->streams[c->fc->nb_streams-1];
2495 avio_r8(pb); /* version */
2496 avio_rb24(pb); /* flags */
2498 entries = avio_rb32(pb);
2500 av_log(c->fc, AV_LOG_TRACE, "keyframe_count = %u\n", entries);
2504 sc->keyframe_absent = 1;
2505 if (!st->need_parsing && st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)
2506 st->need_parsing = AVSTREAM_PARSE_HEADERS;
2510 av_log(c->fc, AV_LOG_WARNING, "Duplicated STSS atom\n");
2511 if (entries >= UINT_MAX / sizeof(int))
2512 return AVERROR_INVALIDDATA;
2513 av_freep(&sc->keyframes);
2514 sc->keyframe_count = 0;
2515 sc->keyframes = av_malloc_array(entries, sizeof(*sc->keyframes));
2517 return AVERROR(ENOMEM);
2519 for (i = 0; i < entries && !pb->eof_reached; i++) {
2520 sc->keyframes[i] = avio_rb32(pb);
2523 sc->keyframe_count = i;
2525 if (pb->eof_reached)
2531 static int mov_read_stsz(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2534 MOVStreamContext *sc;
2535 unsigned int i, entries, sample_size, field_size, num_bytes;
2540 if (c->fc->nb_streams < 1)
2542 st = c->fc->streams[c->fc->nb_streams-1];
2545 avio_r8(pb); /* version */
2546 avio_rb24(pb); /* flags */
2548 if (atom.type == MKTAG('s','t','s','z')) {
2549 sample_size = avio_rb32(pb);
2550 if (!sc->sample_size) /* do not overwrite value computed in stsd */
2551 sc->sample_size = sample_size;
2552 sc->stsz_sample_size = sample_size;
2556 avio_rb24(pb); /* reserved */
2557 field_size = avio_r8(pb);
2559 entries = avio_rb32(pb);
2561 av_log(c->fc, AV_LOG_TRACE, "sample_size = %u sample_count = %u\n", sc->sample_size, entries);
2563 sc->sample_count = entries;
2567 if (field_size != 4 && field_size != 8 && field_size != 16 && field_size != 32) {
2568 av_log(c->fc, AV_LOG_ERROR, "Invalid sample field size %u\n", field_size);
2569 return AVERROR_INVALIDDATA;
2574 if (entries >= (UINT_MAX - 4) / field_size)
2575 return AVERROR_INVALIDDATA;
2576 if (sc->sample_sizes)
2577 av_log(c->fc, AV_LOG_WARNING, "Duplicated STSZ atom\n");
2578 av_free(sc->sample_sizes);
2579 sc->sample_count = 0;
2580 sc->sample_sizes = av_malloc_array(entries, sizeof(*sc->sample_sizes));
2581 if (!sc->sample_sizes)
2582 return AVERROR(ENOMEM);
2584 num_bytes = (entries*field_size+4)>>3;
2586 buf = av_malloc(num_bytes+AV_INPUT_BUFFER_PADDING_SIZE);
2588 av_freep(&sc->sample_sizes);
2589 return AVERROR(ENOMEM);
2592 ret = ffio_read_size(pb, buf, num_bytes);
2594 av_freep(&sc->sample_sizes);
2599 init_get_bits(&gb, buf, 8*num_bytes);
2601 for (i = 0; i < entries && !pb->eof_reached; i++) {
2602 sc->sample_sizes[i] = get_bits_long(&gb, field_size);
2603 sc->data_size += sc->sample_sizes[i];
2606 sc->sample_count = i;
2610 if (pb->eof_reached)
2616 static int mov_read_stts(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2619 MOVStreamContext *sc;
2620 unsigned int i, entries;
2622 int64_t total_sample_count=0;
2624 if (c->fc->nb_streams < 1)
2626 st = c->fc->streams[c->fc->nb_streams-1];
2629 avio_r8(pb); /* version */
2630 avio_rb24(pb); /* flags */
2631 entries = avio_rb32(pb);
2633 av_log(c->fc, AV_LOG_TRACE, "track[%u].stts.entries = %u\n",
2634 c->fc->nb_streams-1, entries);
2637 av_log(c->fc, AV_LOG_WARNING, "Duplicated STTS atom\n");
2638 av_free(sc->stts_data);
2640 sc->stts_data = av_malloc_array(entries, sizeof(*sc->stts_data));
2642 return AVERROR(ENOMEM);
2644 for (i = 0; i < entries && !pb->eof_reached; i++) {
2645 int sample_duration;
2648 sample_count=avio_rb32(pb);
2649 sample_duration = avio_rb32(pb);
2651 if (sample_count < 0) {
2652 av_log(c->fc, AV_LOG_ERROR, "Invalid sample_count=%d\n", sample_count);
2653 return AVERROR_INVALIDDATA;
2655 sc->stts_data[i].count= sample_count;
2656 sc->stts_data[i].duration= sample_duration;
2658 av_log(c->fc, AV_LOG_TRACE, "sample_count=%d, sample_duration=%d\n",
2659 sample_count, sample_duration);
2663 && sample_count == 1
2664 && total_sample_count > 100
2665 && sample_duration/10 > duration / total_sample_count)
2666 sample_duration = duration / total_sample_count;
2667 duration+=(int64_t)sample_duration*sample_count;
2668 total_sample_count+=sample_count;
2673 sc->duration_for_fps += duration;
2674 sc->nb_frames_for_fps += total_sample_count;
2676 if (pb->eof_reached)
2679 st->nb_frames= total_sample_count;
2681 st->duration= duration;
2682 sc->track_end = duration;
2686 static void mov_update_dts_shift(MOVStreamContext *sc, int duration)
2689 if (duration == INT_MIN) {
2690 av_log(NULL, AV_LOG_WARNING, "mov_update_dts_shift(): dts_shift set to %d\n", INT_MAX);
2693 sc->dts_shift = FFMAX(sc->dts_shift, -duration);
2697 static int mov_read_ctts(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2700 MOVStreamContext *sc;
2701 unsigned int i, entries, ctts_count = 0;
2703 if (c->fc->nb_streams < 1)
2705 st = c->fc->streams[c->fc->nb_streams-1];
2708 avio_r8(pb); /* version */
2709 avio_rb24(pb); /* flags */
2710 entries = avio_rb32(pb);
2712 av_log(c->fc, AV_LOG_TRACE, "track[%u].ctts.entries = %u\n", c->fc->nb_streams - 1, entries);
2716 if (entries >= UINT_MAX / sizeof(*sc->ctts_data))
2717 return AVERROR_INVALIDDATA;
2718 av_freep(&sc->ctts_data);
2719 sc->ctts_data = av_realloc(NULL, entries * sizeof(*sc->ctts_data));
2721 return AVERROR(ENOMEM);
2723 for (i = 0; i < entries && !pb->eof_reached; i++) {
2724 int count =avio_rb32(pb);
2725 int duration =avio_rb32(pb);
2728 av_log(c->fc, AV_LOG_TRACE,
2729 "ignoring CTTS entry with count=%d duration=%d\n",
2734 sc->ctts_data[ctts_count].count = count;
2735 sc->ctts_data[ctts_count].duration = duration;
2738 av_log(c->fc, AV_LOG_TRACE, "count=%d, duration=%d\n",
2741 if (FFNABS(duration) < -(1<<28) && i+2<entries) {
2742 av_log(c->fc, AV_LOG_WARNING, "CTTS invalid\n");
2743 av_freep(&sc->ctts_data);
2749 mov_update_dts_shift(sc, duration);
2752 sc->ctts_count = ctts_count;
2754 if (pb->eof_reached)
2757 av_log(c->fc, AV_LOG_TRACE, "dts shift %d\n", sc->dts_shift);
2762 static int mov_read_sbgp(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2765 MOVStreamContext *sc;
2766 unsigned int i, entries;
2768 uint32_t grouping_type;
2770 if (c->fc->nb_streams < 1)
2772 st = c->fc->streams[c->fc->nb_streams-1];
2775 version = avio_r8(pb); /* version */
2776 avio_rb24(pb); /* flags */
2777 grouping_type = avio_rl32(pb);
2778 if (grouping_type != MKTAG( 'r','a','p',' '))
2779 return 0; /* only support 'rap ' grouping */
2781 avio_rb32(pb); /* grouping_type_parameter */
2783 entries = avio_rb32(pb);
2787 av_log(c->fc, AV_LOG_WARNING, "Duplicated SBGP atom\n");
2788 av_free(sc->rap_group);
2789 sc->rap_group_count = 0;
2790 sc->rap_group = av_malloc_array(entries, sizeof(*sc->rap_group));
2792 return AVERROR(ENOMEM);
2794 for (i = 0; i < entries && !pb->eof_reached; i++) {
2795 sc->rap_group[i].count = avio_rb32(pb); /* sample_count */
2796 sc->rap_group[i].index = avio_rb32(pb); /* group_description_index */
2799 sc->rap_group_count = i;
2801 return pb->eof_reached ? AVERROR_EOF : 0;
2805 * Get ith edit list entry (media time, duration).
2807 static int get_edit_list_entry(MOVContext *mov,
2808 const MOVStreamContext *msc,
2809 unsigned int edit_list_index,
2810 int64_t *edit_list_media_time,
2811 int64_t *edit_list_duration,
2812 int64_t global_timescale)
2814 if (edit_list_index == msc->elst_count) {
2817 *edit_list_media_time = msc->elst_data[edit_list_index].time;
2818 *edit_list_duration = msc->elst_data[edit_list_index].duration;
2820 /* duration is in global timescale units;convert to msc timescale */
2821 if (global_timescale == 0) {
2822 avpriv_request_sample(mov->fc, "Support for mvhd.timescale = 0 with editlists");
2825 *edit_list_duration = av_rescale(*edit_list_duration, msc->time_scale,
2831 * Find the closest previous frame to the timestamp, in e_old index
2832 * entries. Searching for just any frame / just key frames can be controlled by
2833 * last argument 'flag'.
2834 * Returns the index of the entry in st->index_entries if successful,
2837 static int64_t find_prev_closest_index(AVStream *st,
2838 AVIndexEntry *e_old,
2843 AVIndexEntry *e_keep = st->index_entries;
2844 int nb_keep = st->nb_index_entries;
2848 st->index_entries = e_old;
2849 st->nb_index_entries = nb_old;
2850 found = av_index_search_timestamp(st, timestamp, flag | AVSEEK_FLAG_BACKWARD);
2852 // Keep going backwards in the index entries until the timestamp is the same.
2854 for (i = found; i > 0 && e_old[i].timestamp == e_old[i - 1].timestamp;
2856 if ((flag & AVSEEK_FLAG_ANY) ||
2857 (e_old[i - 1].flags & AVINDEX_KEYFRAME)) {
2863 /* restore AVStream state*/
2864 st->index_entries = e_keep;
2865 st->nb_index_entries = nb_keep;
2870 * Add index entry with the given values, to the end of st->index_entries.
2871 * Returns the new size st->index_entries if successful, else returns -1.
2873 * This function is similar to ff_add_index_entry in libavformat/utils.c
2874 * except that here we are always unconditionally adding an index entry to
2875 * the end, instead of searching the entries list and skipping the add if
2876 * there is an existing entry with the same timestamp.
2877 * This is needed because the mov_fix_index calls this func with the same
2878 * unincremented timestamp for successive discarded frames.
2880 static int64_t add_index_entry(AVStream *st, int64_t pos, int64_t timestamp,
2881 int size, int distance, int flags)
2883 AVIndexEntry *entries, *ie;
2885 const size_t min_size_needed = (st->nb_index_entries + 1) * sizeof(AVIndexEntry);
2887 // Double the allocation each time, to lower memory fragmentation.
2888 // Another difference from ff_add_index_entry function.
2889 const size_t requested_size =
2890 min_size_needed > st->index_entries_allocated_size ?
2891 FFMAX(min_size_needed, 2 * st->index_entries_allocated_size) :
2894 if((unsigned)st->nb_index_entries + 1 >= UINT_MAX / sizeof(AVIndexEntry))
2897 entries = av_fast_realloc(st->index_entries,
2898 &st->index_entries_allocated_size,
2903 st->index_entries= entries;
2905 index= st->nb_index_entries++;
2906 ie= &entries[index];
2909 ie->timestamp = timestamp;
2910 ie->min_distance= distance;
2917 * Rewrite timestamps of index entries in the range [end_index - frame_duration_buffer_size, end_index)
2918 * by subtracting end_ts successively by the amounts given in frame_duration_buffer.
2920 static void fix_index_entry_timestamps(AVStream* st, int end_index, int64_t end_ts,
2921 int64_t* frame_duration_buffer,
2922 int frame_duration_buffer_size) {
2924 av_assert0(end_index >= 0 && end_index <= st->nb_index_entries);
2925 for (i = 0; i < frame_duration_buffer_size; i++) {
2926 end_ts -= frame_duration_buffer[frame_duration_buffer_size - 1 - i];
2927 st->index_entries[end_index - 1 - i].timestamp = end_ts;
2932 * Append a new ctts entry to ctts_data.
2933 * Returns the new ctts_count if successful, else returns -1.
2935 static int64_t add_ctts_entry(MOVStts** ctts_data, unsigned int* ctts_count, unsigned int* allocated_size,
2936 int count, int duration)
2938 MOVStts *ctts_buf_new;
2939 const size_t min_size_needed = (*ctts_count + 1) * sizeof(MOVStts);
2940 const size_t requested_size =
2941 min_size_needed > *allocated_size ?
2942 FFMAX(min_size_needed, 2 * (*allocated_size)) :
2945 if((unsigned)(*ctts_count) + 1 >= UINT_MAX / sizeof(MOVStts))
2948 ctts_buf_new = av_fast_realloc(*ctts_data, allocated_size, requested_size);
2953 *ctts_data = ctts_buf_new;
2955 ctts_buf_new[*ctts_count].count = count;
2956 ctts_buf_new[*ctts_count].duration = duration;
2958 *ctts_count = (*ctts_count) + 1;
2962 static void mov_current_sample_inc(MOVStreamContext *sc)
2964 sc->current_sample++;
2965 sc->current_index++;
2966 if (sc->index_ranges &&
2967 sc->current_index >= sc->current_index_range->end &&
2968 sc->current_index_range->end) {
2969 sc->current_index_range++;
2970 sc->current_index = sc->current_index_range->start;
2974 static void mov_current_sample_dec(MOVStreamContext *sc)
2976 sc->current_sample--;
2977 sc->current_index--;
2978 if (sc->index_ranges &&
2979 sc->current_index < sc->current_index_range->start &&
2980 sc->current_index_range > sc->index_ranges) {
2981 sc->current_index_range--;
2982 sc->current_index = sc->current_index_range->end - 1;
2986 static void mov_current_sample_set(MOVStreamContext *sc, int current_sample)
2990 sc->current_sample = current_sample;
2991 sc->current_index = current_sample;
2992 if (!sc->index_ranges) {
2996 for (sc->current_index_range = sc->index_ranges;
2997 sc->current_index_range->end;
2998 sc->current_index_range++) {
2999 range_size = sc->current_index_range->end - sc->current_index_range->start;
3000 if (range_size > current_sample) {
3001 sc->current_index = sc->current_index_range->start + current_sample;
3004 current_sample -= range_size;
3009 * Fix st->index_entries, so that it contains only the entries (and the entries
3010 * which are needed to decode them) that fall in the edit list time ranges.
3011 * Also fixes the timestamps of the index entries to match the timeline
3012 * specified the edit lists.
3014 static void mov_fix_index(MOVContext *mov, AVStream *st)
3016 MOVStreamContext *msc = st->priv_data;
3017 AVIndexEntry *e_old = st->index_entries;
3018 int nb_old = st->nb_index_entries;
3019 const AVIndexEntry *e_old_end = e_old + nb_old;
3020 const AVIndexEntry *current = NULL;
3021 MOVStts *ctts_data_old = msc->ctts_data;
3022 int64_t ctts_index_old = 0;
3023 int64_t ctts_sample_old = 0;
3024 int64_t ctts_count_old = msc->ctts_count;
3025 int64_t edit_list_media_time = 0;
3026 int64_t edit_list_duration = 0;
3027 int64_t frame_duration = 0;
3028 int64_t edit_list_dts_counter = 0;
3029 int64_t edit_list_dts_entry_end = 0;
3030 int64_t edit_list_start_ctts_sample = 0;
3032 int64_t edit_list_index = 0;
3034 int64_t index_ctts_count;
3036 unsigned int ctts_allocated_size = 0;
3037 int64_t start_dts = 0;
3038 int64_t edit_list_media_time_dts = 0;
3039 int64_t edit_list_start_encountered = 0;
3040 int64_t search_timestamp = 0;
3041 int64_t* frame_duration_buffer = NULL;
3042 int num_discarded_begin = 0;
3043 int first_non_zero_audio_edit = -1;
3044 int packet_skip_samples = 0;
3045 MOVIndexRange *current_index_range;
3047 if (!msc->elst_data || msc->elst_count <= 0 || nb_old <= 0) {
3051 // allocate the index ranges array
3052 msc->index_ranges = av_malloc((msc->elst_count + 1) * sizeof(msc->index_ranges[0]));
3053 if (!msc->index_ranges) {
3054 av_log(mov->fc, AV_LOG_ERROR, "Cannot allocate index ranges buffer\n");
3057 msc->current_index_range = msc->index_ranges;
3058 current_index_range = msc->index_ranges - 1;
3060 // Clean AVStream from traces of old index
3061 st->index_entries = NULL;
3062 st->index_entries_allocated_size = 0;
3063 st->nb_index_entries = 0;
3065 // Clean ctts fields of MOVStreamContext
3066 msc->ctts_data = NULL;
3067 msc->ctts_count = 0;
3068 msc->ctts_index = 0;
3069 msc->ctts_sample = 0;
3071 // If the dts_shift is positive (in case of negative ctts values in mov),
3072 // then negate the DTS by dts_shift
3073 if (msc->dts_shift > 0)
3074 edit_list_dts_entry_end -= msc->dts_shift;
3076 // Offset the DTS by ctts[0] to make the PTS of the first frame 0
3077 if (ctts_data_old && ctts_count_old > 0) {
3078 edit_list_dts_entry_end -= ctts_data_old[0].duration;
3079 av_log(mov->fc, AV_LOG_DEBUG, "Offset DTS by ctts[%d].duration: %d\n", 0, ctts_data_old[0].duration);
3082 start_dts = edit_list_dts_entry_end;
3084 while (get_edit_list_entry(mov, msc, edit_list_index, &edit_list_media_time,
3085 &edit_list_duration, mov->time_scale)) {
3086 av_log(mov->fc, AV_LOG_DEBUG, "Processing st: %d, edit list %"PRId64" - media time: %"PRId64", duration: %"PRId64"\n",
3087 st->index, edit_list_index, edit_list_media_time, edit_list_duration);
3089 edit_list_dts_counter = edit_list_dts_entry_end;
3090 edit_list_dts_entry_end += edit_list_duration;
3091 num_discarded_begin = 0;
3092 if (edit_list_media_time == -1) {
3096 // If we encounter a non-negative edit list reset the skip_samples/start_pad fields and set them
3097 // according to the edit list below.
3098 if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
3099 if (first_non_zero_audio_edit < 0) {
3100 first_non_zero_audio_edit = 1;
3102 first_non_zero_audio_edit = 0;
3105 if (first_non_zero_audio_edit > 0)
3106 st->skip_samples = msc->start_pad = 0;
3109 //find closest previous key frame
3110 edit_list_media_time_dts = edit_list_media_time;
3111 if (msc->dts_shift > 0) {
3112 edit_list_media_time_dts -= msc->dts_shift;
3115 // While reordering frame index according to edit list we must handle properly
3116 // the scenario when edit list entry starts from none key frame.
3117 // We find closest previous key frame and preserve it and consequent frames in index.
3118 // All frames which are outside edit list entry time boundaries will be dropped after decoding.
3119 search_timestamp = edit_list_media_time_dts;
3120 if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
3121 // Audio decoders like AAC need need a decoder delay samples previous to the current sample,
3122 // to correctly decode this frame. Hence for audio we seek to a frame 1 sec. before the
3123 // edit_list_media_time to cover the decoder delay.
3124 search_timestamp = FFMAX(search_timestamp - msc->time_scale, e_old[0].timestamp);
3127 index = find_prev_closest_index(st, e_old, nb_old, search_timestamp, 0);
3129 av_log(mov->fc, AV_LOG_WARNING,
3130 "st: %d edit list: %"PRId64" Missing key frame while searching for timestamp: %"PRId64"\n",
3131 st->index, edit_list_index, search_timestamp);
3132 index = find_prev_closest_index(st, e_old, nb_old, search_timestamp, AVSEEK_FLAG_ANY);
3135 av_log(mov->fc, AV_LOG_WARNING,
3136 "st: %d edit list %"PRId64" Cannot find an index entry before timestamp: %"PRId64".\n"
3137 "Rounding edit list media time to zero.\n",
3138 st->index, edit_list_index, search_timestamp);
3140 edit_list_media_time = 0;
3143 current = e_old + index;
3146 ctts_sample_old = 0;
3148 // set ctts_index properly for the found key frame
3149 for (index_ctts_count = 0; index_ctts_count < index; index_ctts_count++) {
3150 if (ctts_data_old && ctts_index_old < ctts_count_old) {
3152 if (ctts_data_old[ctts_index_old].count == ctts_sample_old) {
3154 ctts_sample_old = 0;
3159 edit_list_start_ctts_sample = ctts_sample_old;
3161 // Iterate over index and arrange it according to edit list
3162 edit_list_start_encountered = 0;
3163 for (; current < e_old_end; current++, index++) {
3164 // check if frame outside edit list mark it for discard
3165 frame_duration = (current + 1 < e_old_end) ?
3166 ((current + 1)->timestamp - current->timestamp) : edit_list_duration;
3168 flags = current->flags;
3170 // frames (pts) before or after edit list
3171 curr_cts = current->timestamp + msc->dts_shift;
3173 if (ctts_data_old && ctts_index_old < ctts_count_old) {
3174 av_log(mov->fc, AV_LOG_DEBUG, "shifted frame pts, curr_cts: %"PRId64" @ %"PRId64", ctts: %d, ctts_count: %"PRId64"\n",
3175 curr_cts, ctts_index_old, ctts_data_old[ctts_index_old].duration, ctts_count_old);
3176 curr_cts += ctts_data_old[ctts_index_old].duration;
3178 if (ctts_sample_old == ctts_data_old[ctts_index_old].count) {
3179 if (add_ctts_entry(&msc->ctts_data, &msc->ctts_count,
3180 &ctts_allocated_size,
3181 ctts_data_old[ctts_index_old].count - edit_list_start_ctts_sample,
3182 ctts_data_old[ctts_index_old].duration) == -1) {
3183 av_log(mov->fc, AV_LOG_ERROR, "Cannot add CTTS entry %"PRId64" - {%"PRId64", %d}\n",
3185 ctts_data_old[ctts_index_old].count - edit_list_start_ctts_sample,
3186 ctts_data_old[ctts_index_old].duration);
3190 ctts_sample_old = 0;
3191 edit_list_start_ctts_sample = 0;
3195 if (curr_cts < edit_list_media_time || curr_cts >= (edit_list_duration + edit_list_media_time)) {
3196 if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO && st->codecpar->codec_id != AV_CODEC_ID_VORBIS &&
3197 curr_cts < edit_list_media_time && curr_cts + frame_duration > edit_list_media_time &&
3198 first_non_zero_audio_edit > 0) {
3199 packet_skip_samples = edit_list_media_time - curr_cts;
3200 st->skip_samples += packet_skip_samples;
3202 // Shift the index entry timestamp by packet_skip_samples to be correct.
3203 edit_list_dts_counter -= packet_skip_samples;
3204 if (edit_list_start_encountered == 0) {
3205 edit_list_start_encountered = 1;
3206 // Make timestamps strictly monotonically increasing for audio, by rewriting timestamps for
3207 // discarded packets.
3208 if (frame_duration_buffer) {
3209 fix_index_entry_timestamps(st, st->nb_index_entries, edit_list_dts_counter,
3210 frame_duration_buffer, num_discarded_begin);
3211 av_freep(&frame_duration_buffer);
3215 av_log(mov->fc, AV_LOG_DEBUG, "skip %d audio samples from curr_cts: %"PRId64"\n", packet_skip_samples, curr_cts);
3217 flags |= AVINDEX_DISCARD_FRAME;
3218 av_log(mov->fc, AV_LOG_DEBUG, "drop a frame at curr_cts: %"PRId64" @ %"PRId64"\n", curr_cts, index);
3220 if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO && edit_list_start_encountered == 0) {
3221 num_discarded_begin++;
3222 frame_duration_buffer = av_realloc(frame_duration_buffer,
3223 num_discarded_begin * sizeof(int64_t));
3224 if (!frame_duration_buffer) {
3225 av_log(mov->fc, AV_LOG_ERROR, "Cannot reallocate frame duration buffer\n");
3228 frame_duration_buffer[num_discarded_begin - 1] = frame_duration;
3230 // Increment skip_samples for the first non-zero audio edit list
3231 if (first_non_zero_audio_edit > 0 && st->codecpar->codec_id != AV_CODEC_ID_VORBIS) {
3232 st->skip_samples += frame_duration;
3233 msc->start_pad = st->skip_samples;
3237 } else if (edit_list_start_encountered == 0) {
3238 edit_list_start_encountered = 1;
3239 // Make timestamps strictly monotonically increasing for audio, by rewriting timestamps for
3240 // discarded packets.
3241 if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO && frame_duration_buffer) {
3242 fix_index_entry_timestamps(st, st->nb_index_entries, edit_list_dts_counter,
3243 frame_duration_buffer, num_discarded_begin);
3244 av_freep(&frame_duration_buffer);
3248 if (add_index_entry(st, current->pos, edit_list_dts_counter, current->size,
3249 current->min_distance, flags) == -1) {
3250 av_log(mov->fc, AV_LOG_ERROR, "Cannot add index entry\n");
3254 // Update the index ranges array
3255 if (current_index_range < msc->index_ranges || index != current_index_range->end) {
3256 current_index_range++;
3257 current_index_range->start = index;
3259 current_index_range->end = index + 1;
3261 // Only start incrementing DTS in frame_duration amounts, when we encounter a frame in edit list.
3262 if (edit_list_start_encountered > 0) {
3263 edit_list_dts_counter = edit_list_dts_counter + frame_duration;
3266 // Break when found first key frame after edit entry completion
3267 if (((curr_cts + frame_duration) >= (edit_list_duration + edit_list_media_time)) &&
3268 ((flags & AVINDEX_KEYFRAME) || ((st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO)))) {
3270 if (ctts_data_old && ctts_sample_old != 0) {
3271 if (add_ctts_entry(&msc->ctts_data, &msc->ctts_count,
3272 &ctts_allocated_size,
3273 ctts_sample_old - edit_list_start_ctts_sample,
3274 ctts_data_old[ctts_index_old].duration) == -1) {
3275 av_log(mov->fc, AV_LOG_ERROR, "Cannot add CTTS entry %"PRId64" - {%"PRId64", %d}\n",
3276 ctts_index_old, ctts_sample_old - edit_list_start_ctts_sample,
3277 ctts_data_old[ctts_index_old].duration);
3285 // Update av stream length
3286 st->duration = edit_list_dts_entry_end - start_dts;
3288 // Free the old index and the old CTTS structures
3290 av_free(ctts_data_old);
3292 // Null terminate the index ranges array
3293 current_index_range++;
3294 current_index_range->start = 0;
3295 current_index_range->end = 0;
3296 msc->current_index = msc->index_ranges[0].start;
3299 static void mov_build_index(MOVContext *mov, AVStream *st)
3301 MOVStreamContext *sc = st->priv_data;
3302 int64_t current_offset;
3303 int64_t current_dts = 0;
3304 unsigned int stts_index = 0;
3305 unsigned int stsc_index = 0;
3306 unsigned int stss_index = 0;
3307 unsigned int stps_index = 0;
3309 uint64_t stream_size = 0;
3311 if (sc->elst_count) {
3312 int i, edit_start_index = 0;
3313 int64_t empty_duration = 0; // empty duration of the first edit list entry
3314 int64_t start_time = 0; // start time of the media
3316 for (i = 0; i < sc->elst_count; i++) {
3317 const MOVElst *e = &sc->elst_data[i];
3318 if (i == 0 && e->time == -1) {
3319 /* if empty, the first entry is the start time of the stream
3320 * relative to the presentation itself */
3321 empty_duration = e->duration;
3322 edit_start_index = 1;
3323 } else if (i == edit_start_index && e->time >= 0) {
3324 start_time = e->time;
3328 /* adjust first dts according to edit list */
3329 if ((empty_duration || start_time) && mov->time_scale > 0) {
3331 empty_duration = av_rescale(empty_duration, sc->time_scale, mov->time_scale);
3332 sc->time_offset = start_time - empty_duration;
3336 /* only use old uncompressed audio chunk demuxing when stts specifies it */
3337 if (!(st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO &&
3338 sc->stts_count == 1 && sc->stts_data[0].duration == 1)) {
3339 unsigned int current_sample = 0;
3340 unsigned int stts_sample = 0;
3341 unsigned int sample_size;
3342 unsigned int distance = 0;
3343 unsigned int rap_group_index = 0;
3344 unsigned int rap_group_sample = 0;
3345 int64_t last_dts = 0;
3346 int64_t dts_correction = 0;
3347 int rap_group_present = sc->rap_group_count && sc->rap_group;
3348 int key_off = (sc->keyframe_count && sc->keyframes[0] > 0) || (sc->stps_count && sc->stps_data[0] > 0);
3350 current_dts -= sc->dts_shift;
3351 last_dts = current_dts;
3353 if (!sc->sample_count || st->nb_index_entries)
3355 if (sc->sample_count >= UINT_MAX / sizeof(*st->index_entries) - st->nb_index_entries)
3357 if (av_reallocp_array(&st->index_entries,
3358 st->nb_index_entries + sc->sample_count,
3359 sizeof(*st->index_entries)) < 0) {
3360 st->nb_index_entries = 0;
3363 st->index_entries_allocated_size = (st->nb_index_entries + sc->sample_count) * sizeof(*st->index_entries);
3365 for (i = 0; i < sc->chunk_count; i++) {
3366 int64_t next_offset = i+1 < sc->chunk_count ? sc->chunk_offsets[i+1] : INT64_MAX;
3367 current_offset = sc->chunk_offsets[i];
3368 while (mov_stsc_index_valid(stsc_index, sc->stsc_count) &&
3369 i + 1 == sc->stsc_data[stsc_index + 1].first)
3372 if (next_offset > current_offset && sc->sample_size>0 && sc->sample_size < sc->stsz_sample_size &&
3373 sc->stsc_data[stsc_index].count * (int64_t)sc->stsz_sample_size > next_offset - current_offset) {
3374 av_log(mov->fc, AV_LOG_WARNING, "STSZ sample size %d invalid (too large), ignoring\n", sc->stsz_sample_size);
3375 sc->stsz_sample_size = sc->sample_size;
3377 if (sc->stsz_sample_size>0 && sc->stsz_sample_size < sc->sample_size) {
3378 av_log(mov->fc, AV_LOG_WARNING, "STSZ sample size %d invalid (too small), ignoring\n", sc->stsz_sample_size);
3379 sc->stsz_sample_size = sc->sample_size;
3382 for (j = 0; j < sc->stsc_data[stsc_index].count; j++) {
3384 if (current_sample >= sc->sample_count) {
3385 av_log(mov->fc, AV_LOG_ERROR, "wrong sample count\n");
3389 if (!sc->keyframe_absent && (!sc->keyframe_count || current_sample+key_off == sc->keyframes[stss_index])) {
3391 if (stss_index + 1 < sc->keyframe_count)
3393 } else if (sc->stps_count && current_sample+key_off == sc->stps_data[stps_index]) {
3395 if (stps_index + 1 < sc->stps_count)
3398 if (rap_group_present && rap_group_index < sc->rap_group_count) {
3399 if (sc->rap_group[rap_group_index].index > 0)
3401 if (++rap_group_sample == sc->rap_group[rap_group_index].count) {
3402 rap_group_sample = 0;
3406 if (sc->keyframe_absent
3408 && !rap_group_present
3409 && (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO || (i==0 && j==0)))
3413 sample_size = sc->stsz_sample_size > 0 ? sc->stsz_sample_size : sc->sample_sizes[current_sample];
3414 if (sc->pseudo_stream_id == -1 ||
3415 sc->stsc_data[stsc_index].id - 1 == sc->pseudo_stream_id) {
3417 if (sample_size > 0x3FFFFFFF) {
3418 av_log(mov->fc, AV_LOG_ERROR, "Sample size %u is too large\n", sample_size);
3421 e = &st->index_entries[st->nb_index_entries++];
3422 e->pos = current_offset;
3423 e->timestamp = current_dts;
3424 e->size = sample_size;
3425 e->min_distance = distance;
3426 e->flags = keyframe ? AVINDEX_KEYFRAME : 0;
3427 av_log(mov->fc, AV_LOG_TRACE, "AVIndex stream %d, sample %u, offset %"PRIx64", dts %"PRId64", "
3428 "size %u, distance %u, keyframe %d\n", st->index, current_sample,
3429 current_offset, current_dts, sample_size, distance, keyframe);
3430 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO && st->nb_index_entries < 100)
3431 ff_rfps_add_frame(mov->fc, st, current_dts);
3434 current_offset += sample_size;
3435 stream_size += sample_size;
3437 /* A negative sample duration is invalid based on the spec,
3438 * but some samples need it to correct the DTS. */
3439 if (sc->stts_data[stts_index].duration < 0) {
3440 av_log(mov->fc, AV_LOG_WARNING,
3441 "Invalid SampleDelta %d in STTS, at %d st:%d\n",
3442 sc->stts_data[stts_index].duration, stts_index,
3444 dts_correction += sc->stts_data[stts_index].duration - 1;
3445 sc->stts_data[stts_index].duration = 1;
3447 current_dts += sc->stts_data[stts_index].duration;
3448 if (!dts_correction || current_dts + dts_correction > last_dts) {
3449 current_dts += dts_correction;
3452 /* Avoid creating non-monotonous DTS */
3453 dts_correction += current_dts - last_dts - 1;
3454 current_dts = last_dts + 1;
3456 last_dts = current_dts;
3460 if (stts_index + 1 < sc->stts_count && stts_sample == sc->stts_data[stts_index].count) {
3466 if (st->duration > 0)
3467 st->codecpar->bit_rate = stream_size*8*sc->time_scale/st->duration;
3469 unsigned chunk_samples, total = 0;
3471 // compute total chunk count
3472 for (i = 0; i < sc->stsc_count; i++) {
3473 unsigned count, chunk_count;
3475 chunk_samples = sc->stsc_data[i].count;
3476 if (i != sc->stsc_count - 1 &&
3477 sc->samples_per_frame && chunk_samples % sc->samples_per_frame) {
3478 av_log(mov->fc, AV_LOG_ERROR, "error unaligned chunk\n");
3482 if (sc->samples_per_frame >= 160) { // gsm
3483 count = chunk_samples / sc->samples_per_frame;
3484 } else if (sc->samples_per_frame > 1) {
3485 unsigned samples = (1024/sc->samples_per_frame)*sc->samples_per_frame;
3486 count = (chunk_samples+samples-1) / samples;
3488 count = (chunk_samples+1023) / 1024;
3491 if (mov_stsc_index_valid(i, sc->stsc_count))
3492 chunk_count = sc->stsc_data[i+1].first - sc->stsc_data[i].first;
3494 chunk_count = sc->chunk_count - (sc->stsc_data[i].first - 1);
3495 total += chunk_count * count;
3498 av_log(mov->fc, AV_LOG_TRACE, "chunk count %u\n", total);
3499 if (total >= UINT_MAX / sizeof(*st->index_entries) - st->nb_index_entries)
3501 if (av_reallocp_array(&st->index_entries,
3502 st->nb_index_entries + total,
3503 sizeof(*st->index_entries)) < 0) {
3504 st->nb_index_entries = 0;
3507 st->index_entries_allocated_size = (st->nb_index_entries + total) * sizeof(*st->index_entries);
3510 for (i = 0; i < sc->chunk_count; i++) {
3511 current_offset = sc->chunk_offsets[i];
3512 if (mov_stsc_index_valid(stsc_index, sc->stsc_count) &&
3513 i + 1 == sc->stsc_data[stsc_index + 1].first)
3515 chunk_samples = sc->stsc_data[stsc_index].count;
3517 while (chunk_samples > 0) {
3519 unsigned size, samples;
3521 if (sc->samples_per_frame > 1 && !sc->bytes_per_frame) {
3522 avpriv_request_sample(mov->fc,
3523 "Zero bytes per frame, but %d samples per frame",
3524 sc->samples_per_frame);
3528 if (sc->samples_per_frame >= 160) { // gsm
3529 samples = sc->samples_per_frame;
3530 size = sc->bytes_per_frame;
3532 if (sc->samples_per_frame > 1) {
3533 samples = FFMIN((1024 / sc->samples_per_frame)*
3534 sc->samples_per_frame, chunk_samples);
3535 size = (samples / sc->samples_per_frame) * sc->bytes_per_frame;
3537 samples = FFMIN(1024, chunk_samples);
3538 size = samples * sc->sample_size;
3542 if (st->nb_index_entries >= total) {
3543 av_log(mov->fc, AV_LOG_ERROR, "wrong chunk count %u\n", total);
3546 if (size > 0x3FFFFFFF) {
3547 av_log(mov->fc, AV_LOG_ERROR, "Sample size %u is too large\n", size);
3550 e = &st->index_entries[st->nb_index_entries++];
3551 e->pos = current_offset;
3552 e->timestamp = current_dts;
3554 e->min_distance = 0;
3555 e->flags = AVINDEX_KEYFRAME;
3556 av_log(mov->fc, AV_LOG_TRACE, "AVIndex stream %d, chunk %u, offset %"PRIx64", dts %"PRId64", "
3557 "size %u, duration %u\n", st->index, i, current_offset, current_dts,
3560 current_offset += size;
3561 current_dts += samples;
3562 chunk_samples -= samples;
3567 // Fix index according to edit lists.
3568 mov_fix_index(mov, st);
3571 static int test_same_origin(const char *src, const char *ref) {
3581 av_url_split(src_proto, sizeof(src_proto), src_auth, sizeof(src_auth), src_host, sizeof(src_host), &src_port, NULL, 0, src);
3582 av_url_split(ref_proto, sizeof(ref_proto), ref_auth, sizeof(ref_auth), ref_host, sizeof(ref_host), &ref_port, NULL, 0, ref);
3584 if (strlen(src) == 0) {
3586 } else if (strlen(src_auth) + 1 >= sizeof(src_auth) ||
3587 strlen(ref_auth) + 1 >= sizeof(ref_auth) ||
3588 strlen(src_host) + 1 >= sizeof(src_host) ||
3589 strlen(ref_host) + 1 >= sizeof(ref_host)) {
3591 } else if (strcmp(src_proto, ref_proto) ||
3592 strcmp(src_auth, ref_auth) ||
3593 strcmp(src_host, ref_host) ||
3594 src_port != ref_port) {
3600 static int mov_open_dref(MOVContext *c, AVIOContext **pb, const char *src, MOVDref *ref)
3602 /* try relative path, we do not try the absolute because it can leak information about our
3603 system to an attacker */
3604 if (ref->nlvl_to > 0 && ref->nlvl_from > 0) {
3605 char filename[1025];
3606 const char *src_path;
3609 /* find a source dir */
3610 src_path = strrchr(src, '/');
3616 /* find a next level down to target */
3617 for (i = 0, l = strlen(ref->path) - 1; l >= 0; l--)
3618 if (ref->path[l] == '/') {
3619 if (i == ref->nlvl_to - 1)
3625 /* compose filename if next level down to target was found */
3626 if (i == ref->nlvl_to - 1 && src_path - src < sizeof(filename)) {
3627 memcpy(filename, src, src_path - src);
3628 filename[src_path - src] = 0;
3630 for (i = 1; i < ref->nlvl_from; i++)
3631 av_strlcat(filename, "../", sizeof(filename));
3633 av_strlcat(filename, ref->path + l + 1, sizeof(filename));
3634 if (!c->use_absolute_path) {
3635 int same_origin = test_same_origin(src, filename);
3638 av_log(c->fc, AV_LOG_ERROR,
3639 "Reference with mismatching origin, %s not tried for security reasons, "
3640 "set demuxer option use_absolute_path to allow it anyway\n",
3642 return AVERROR(ENOENT);
3645 if(strstr(ref->path + l + 1, "..") ||
3646 strstr(ref->path + l + 1, ":") ||
3647 (ref->nlvl_from > 1 && same_origin < 0) ||
3648 (filename[0] == '/' && src_path == src))
3649 return AVERROR(ENOENT);
3652 if (strlen(filename) + 1 == sizeof(filename))
3653 return AVERROR(ENOENT);
3654 if (!c->fc->io_open(c->fc, pb, filename, AVIO_FLAG_READ, NULL))
3657 } else if (c->use_absolute_path) {
3658 av_log(c->fc, AV_LOG_WARNING, "Using absolute path on user request, "
3659 "this is a possible security issue\n");
3660 if (!c->fc->io_open(c->fc, pb, ref->path, AVIO_FLAG_READ, NULL))
3663 av_log(c->fc, AV_LOG_ERROR,
3664 "Absolute path %s not tried for security reasons, "
3665 "set demuxer option use_absolute_path to allow absolute paths\n",
3669 return AVERROR(ENOENT);
3672 static void fix_timescale(MOVContext *c, MOVStreamContext *sc)
3674 if (sc->time_scale <= 0) {
3675 av_log(c->fc, AV_LOG_WARNING, "stream %d, timescale not set\n", sc->ffindex);
3676 sc->time_scale = c->time_scale;
3677 if (sc->time_scale <= 0)
3682 static int mov_read_trak(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3685 MOVStreamContext *sc;
3688 st = avformat_new_stream(c->fc, NULL);
3689 if (!st) return AVERROR(ENOMEM);
3690 st->id = c->fc->nb_streams;
3691 sc = av_mallocz(sizeof(MOVStreamContext));
3692 if (!sc) return AVERROR(ENOMEM);
3695 st->codecpar->codec_type = AVMEDIA_TYPE_DATA;
3696 sc->ffindex = st->index;
3697 c->trak_index = st->index;
3699 if ((ret = mov_read_default(c, pb, atom)) < 0)
3705 if (sc->chunk_count && (!sc->stts_count || !sc->stsc_count ||
3706 (!sc->sample_size && !sc->sample_count))) {
3707 av_log(c->fc, AV_LOG_ERROR, "stream %d, missing mandatory atoms, broken header\n",
3712 fix_timescale(c, sc);
3714 avpriv_set_pts_info(st, 64, 1, sc->time_scale);
3716 mov_build_index(c, st);
3718 if (sc->dref_id-1 < sc->drefs_count && sc->drefs[sc->dref_id-1].path) {
3719 MOVDref *dref = &sc->drefs[sc->dref_id - 1];
3720 if (c->enable_drefs) {
3721 if (mov_open_dref(c, &sc->pb, c->fc->filename, dref) < 0)
3722 av_log(c->fc, AV_LOG_ERROR,
3723 "stream %d, error opening alias: path='%s', dir='%s', "
3724 "filename='%s', volume='%s', nlvl_from=%d, nlvl_to=%d\n",
3725 st->index, dref->path, dref->dir, dref->filename,
3726 dref->volume, dref->nlvl_from, dref->nlvl_to);
3728 av_log(c->fc, AV_LOG_WARNING,
3729 "Skipped opening external track: "
3730 "stream %d, alias: path='%s', dir='%s', "
3731 "filename='%s', volume='%s', nlvl_from=%d, nlvl_to=%d."
3732 "Set enable_drefs to allow this.\n",
3733 st->index, dref->path, dref->dir, dref->filename,
3734 dref->volume, dref->nlvl_from, dref->nlvl_to);
3738 sc->pb_is_copied = 1;
3741 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
3742 if (!st->sample_aspect_ratio.num && st->codecpar->width && st->codecpar->height &&
3743 sc->height && sc->width &&
3744 (st->codecpar->width != sc->width || st->codecpar->height != sc->height)) {
3745 st->sample_aspect_ratio = av_d2q(((double)st->codecpar->height * sc->width) /
3746 ((double)st->codecpar->width * sc->height), INT_MAX);
3749 #if FF_API_R_FRAME_RATE
3750 if (sc->stts_count == 1 || (sc->stts_count == 2 && sc->stts_data[1].count == 1))
3751 av_reduce(&st->r_frame_rate.num, &st->r_frame_rate.den,
3752 sc->time_scale, sc->stts_data[0].duration, INT_MAX);
3756 // done for ai5q, ai52, ai55, ai1q, ai12 and ai15.
3757 if (!st->codecpar->extradata_size && st->codecpar->codec_id == AV_CODEC_ID_H264 &&
3758 TAG_IS_AVCI(st->codecpar->codec_tag)) {
3759 ret = ff_generate_avci_extradata(st);
3764 switch (st->codecpar->codec_id) {
3765 #if CONFIG_H261_DECODER
3766 case AV_CODEC_ID_H261:
3768 #if CONFIG_H263_DECODER
3769 case AV_CODEC_ID_H263:
3771 #if CONFIG_MPEG4_DECODER
3772 case AV_CODEC_ID_MPEG4:
3774 st->codecpar->width = 0; /* let decoder init width/height */
3775 st->codecpar->height= 0;
3779 // If the duration of the mp3 packets is not constant, then they could need a parser
3780 if (st->codecpar->codec_id == AV_CODEC_ID_MP3
3781 && sc->stts_count > 3
3782 && sc->stts_count*10 > st->nb_frames
3783 && sc->time_scale == st->codecpar->sample_rate) {
3784 st->need_parsing = AVSTREAM_PARSE_FULL;
3786 /* Do not need those anymore. */
3787 av_freep(&sc->chunk_offsets);
3788 av_freep(&sc->sample_sizes);
3789 av_freep(&sc->keyframes);
3790 av_freep(&sc->stts_data);
3791 av_freep(&sc->stps_data);
3792 av_freep(&sc->elst_data);
3793 av_freep(&sc->rap_group);
3798 static int mov_read_ilst(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3801 c->itunes_metadata = 1;
3802 ret = mov_read_default(c, pb, atom);
3803 c->itunes_metadata = 0;
3807 static int mov_read_keys(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3816 count = avio_rb32(pb);
3817 if (count > UINT_MAX / sizeof(*c->meta_keys) - 1) {
3818 av_log(c->fc, AV_LOG_ERROR,
3819 "The 'keys' atom with the invalid key count: %"PRIu32"\n", count);
3820 return AVERROR_INVALIDDATA;
3823 c->meta_keys_count = count + 1;
3824 c->meta_keys = av_mallocz(c->meta_keys_count * sizeof(*c->meta_keys));
3826 return AVERROR(ENOMEM);
3828 for (i = 1; i <= count; ++i) {
3829 uint32_t key_size = avio_rb32(pb);
3830 uint32_t type = avio_rl32(pb);
3832 av_log(c->fc, AV_LOG_ERROR,
3833 "The key# %"PRIu32" in meta has invalid size:"
3834 "%"PRIu32"\n", i, key_size);
3835 return AVERROR_INVALIDDATA;
3838 if (type != MKTAG('m','d','t','a')) {
3839 avio_skip(pb, key_size);
3841 c->meta_keys[i] = av_mallocz(key_size + 1);
3842 if (!c->meta_keys[i])
3843 return AVERROR(ENOMEM);
3844 avio_read(pb, c->meta_keys[i], key_size);
3850 static int mov_read_custom(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3852 int64_t end = avio_tell(pb) + atom.size;
3853 uint8_t *key = NULL, *val = NULL, *mean = NULL;
3857 MOVStreamContext *sc;
3859 if (c->fc->nb_streams < 1)
3861 st = c->fc->streams[c->fc->nb_streams-1];
3864 for (i = 0; i < 3; i++) {
3868 if (end - avio_tell(pb) <= 12)
3871 len = avio_rb32(pb);
3872 tag = avio_rl32(pb);
3873 avio_skip(pb, 4); // flags
3875 if (len < 12 || len - 12 > end - avio_tell(pb))
3879 if (tag == MKTAG('m', 'e', 'a', 'n'))
3881 else if (tag == MKTAG('n', 'a', 'm', 'e'))
3883 else if (tag == MKTAG('d', 'a', 't', 'a') && len > 4) {
3890 *p = av_malloc(len + 1);
3893 ret = ffio_read_size(pb, *p, len);
3901 if (mean && key && val) {
3902 if (strcmp(key, "iTunSMPB") == 0) {
3903 int priming, remainder, samples;
3904 if(sscanf(val, "%*X %X %X %X", &priming, &remainder, &samples) == 3){
3905 if(priming>0 && priming<16384)
3906 sc->start_pad = priming;
3909 if (strcmp(key, "cdec") != 0) {
3910 av_dict_set(&c->fc->metadata, key, val,
3911 AV_DICT_DONT_STRDUP_KEY | AV_DICT_DONT_STRDUP_VAL);
3915 av_log(c->fc, AV_LOG_VERBOSE,
3916 "Unhandled or malformed custom metadata of size %"PRId64"\n", atom.size);
3919 avio_seek(pb, end, SEEK_SET);
3926 static int mov_read_meta(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3928 while (atom.size > 8) {
3929 uint32_t tag = avio_rl32(pb);
3931 if (tag == MKTAG('h','d','l','r')) {
3932 avio_seek(pb, -8, SEEK_CUR);
3934 return mov_read_default(c, pb, atom);
3940 // return 1 when matrix is identity, 0 otherwise
3941 #define IS_MATRIX_IDENT(matrix) \
3942 ( (matrix)[0][0] == (1 << 16) && \
3943 (matrix)[1][1] == (1 << 16) && \
3944 (matrix)[2][2] == (1 << 30) && \
3945 !(matrix)[0][1] && !(matrix)[0][2] && \
3946 !(matrix)[1][0] && !(matrix)[1][2] && \
3947 !(matrix)[2][0] && !(matrix)[2][1])
3949 static int mov_read_tkhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3954 int display_matrix[3][3];
3955 int res_display_matrix[3][3] = { { 0 } };
3957 MOVStreamContext *sc;
3961 if (c->fc->nb_streams < 1)
3963 st = c->fc->streams[c->fc->nb_streams-1];
3966 version = avio_r8(pb);
3967 flags = avio_rb24(pb);
3968 st->disposition |= (flags & MOV_TKHD_FLAG_ENABLED) ? AV_DISPOSITION_DEFAULT : 0;
3974 avio_rb32(pb); /* creation time */
3975 avio_rb32(pb); /* modification time */
3977 st->id = (int)avio_rb32(pb); /* track id (NOT 0 !)*/
3978 avio_rb32(pb); /* reserved */
3980 /* highlevel (considering edits) duration in movie timebase */
3981 (version == 1) ? avio_rb64(pb) : avio_rb32(pb);
3982 avio_rb32(pb); /* reserved */
3983 avio_rb32(pb); /* reserved */
3985 avio_rb16(pb); /* layer */
3986 avio_rb16(pb); /* alternate group */
3987 avio_rb16(pb); /* volume */
3988 avio_rb16(pb); /* reserved */
3990 //read in the display matrix (outlined in ISO 14496-12, Section 6.2.2)
3991 // they're kept in fixed point format through all calculations
3992 // save u,v,z to store the whole matrix in the AV_PKT_DATA_DISPLAYMATRIX
3993 // side data, but the scale factor is not needed to calculate aspect ratio
3994 for (i = 0; i < 3; i++) {
3995 display_matrix[i][0] = avio_rb32(pb); // 16.16 fixed point
3996 display_matrix[i][1] = avio_rb32(pb); // 16.16 fixed point
3997 display_matrix[i][2] = avio_rb32(pb); // 2.30 fixed point
4000 width = avio_rb32(pb); // 16.16 fixed point track width
4001 height = avio_rb32(pb); // 16.16 fixed point track height
4002 sc->width = width >> 16;
4003 sc->height = height >> 16;
4005 // apply the moov display matrix (after the tkhd one)
4006 for (i = 0; i < 3; i++) {
4007 const int sh[3] = { 16, 16, 30 };
4008 for (j = 0; j < 3; j++) {
4009 for (e = 0; e < 3; e++) {
4010 res_display_matrix[i][j] +=
4011 ((int64_t) display_matrix[i][e] *
4012 c->movie_display_matrix[e][j]) >> sh[e];
4017 // save the matrix when it is not the default identity
4018 if (!IS_MATRIX_IDENT(res_display_matrix)) {
4021 av_freep(&sc->display_matrix);
4022 sc->display_matrix = av_malloc(sizeof(int32_t) * 9);
4023 if (!sc->display_matrix)
4024 return AVERROR(ENOMEM);
4026 for (i = 0; i < 3; i++)
4027 for (j = 0; j < 3; j++)
4028 sc->display_matrix[i * 3 + j] = res_display_matrix[i][j];
4030 #if FF_API_OLD_ROTATE_API
4031 rotate = av_display_rotation_get(sc->display_matrix);
4032 if (!isnan(rotate)) {
4033 char rotate_buf[64];
4035 if (rotate < 0) // for backward compatibility
4037 snprintf(rotate_buf, sizeof(rotate_buf), "%g", rotate);
4038 av_dict_set(&st->metadata, "rotate", rotate_buf, 0);
4043 // transform the display width/height according to the matrix
4044 // to keep the same scale, use [width height 1<<16]
4045 if (width && height && sc->display_matrix) {
4046 double disp_transform[2];
4048 for (i = 0; i < 2; i++)
4049 disp_transform[i] = hypot(sc->display_matrix[0 + i],
4050 sc->display_matrix[3 + i]);
4052 if (disp_transform[0] > 0 && disp_transform[1] > 0 &&
4053 disp_transform[0] < (1<<24) && disp_transform[1] < (1<<24) &&
4054 fabs((disp_transform[0] / disp_transform[1]) - 1.0) > 0.01)
4055 st->sample_aspect_ratio = av_d2q(
4056 disp_transform[0] / disp_transform[1],
4062 static int mov_read_tfhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
4064 MOVFragment *frag = &c->fragment;
4065 MOVTrackExt *trex = NULL;
4066 MOVFragmentIndex* index = NULL;
4067 int flags, track_id, i, found = 0;
4069 avio_r8(pb); /* version */
4070 flags = avio_rb24(pb);
4072 track_id = avio_rb32(pb);
4074 return AVERROR_INVALIDDATA;
4075 frag->track_id = track_id;
4076 for (i = 0; i < c->trex_count; i++)
4077 if (c->trex_data[i].track_id == frag->track_id) {
4078 trex = &c->trex_data[i];
4082 av_log(c->fc, AV_LOG_ERROR, "could not find corresponding trex\n");
4083 return AVERROR_INVALIDDATA;
4086 frag->base_data_offset = flags & MOV_TFHD_BASE_DATA_OFFSET ?
4087 avio_rb64(pb) : flags & MOV_TFHD_DEFAULT_BASE_IS_MOOF ?
4088 frag->moof_offset : frag->implicit_offset;
4089 frag->stsd_id = flags & MOV_TFHD_STSD_ID ? avio_rb32(pb) : trex->stsd_id;
4091 frag->duration = flags & MOV_TFHD_DEFAULT_DURATION ?
4092 avio_rb32(pb) : trex->duration;
4093 frag->size = flags & MOV_TFHD_DEFAULT_SIZE ?
4094 avio_rb32(pb) : trex->size;
4095 frag->flags = flags & MOV_TFHD_DEFAULT_FLAGS ?
4096 avio_rb32(pb) : trex->flags;
4097 frag->time = AV_NOPTS_VALUE;
4098 for (i = 0; i < c->fragment_index_count; i++) {
4100 MOVFragmentIndex* candidate = c->fragment_index_data[i];
4101 if (candidate->track_id == frag->track_id) {
4102 av_log(c->fc, AV_LOG_DEBUG,
4103 "found fragment index for track %u\n", frag->track_id);
4105 for (j = index->current_item; j < index->item_count; j++) {
4106 if (frag->implicit_offset == index->items[j].moof_offset) {
4107 av_log(c->fc, AV_LOG_DEBUG, "found fragment index entry "
4108 "for track %u and moof_offset %"PRId64"\n",
4109 frag->track_id, index->items[j].moof_offset);
4110 frag->time = index->items[j].time;
4111 index->current_item = j + 1;
4120 if (index && !found) {
4121 av_log(c->fc, AV_LOG_DEBUG, "track %u has a fragment index but "
4122 "it doesn't have an (in-order) entry for moof_offset "
4123 "%"PRId64"\n", frag->track_id, frag->implicit_offset);
4125 av_log(c->fc, AV_LOG_TRACE, "frag flags 0x%x\n", frag->flags);
4129 static int mov_read_chap(MOVContext *c, AVIOContext *pb, MOVAtom atom)
4134 num = atom.size / 4;
4135 if (!(new_tracks = av_malloc_array(num, sizeof(int))))
4136 return AVERROR(ENOMEM);
4138 av_free(c->chapter_tracks);
4139 c->chapter_tracks = new_tracks;
4140 c->nb_chapter_tracks = num;
4142 for (i = 0; i < num && !pb->eof_reached; i++)
4143 c->chapter_tracks[i] = avio_rb32(pb);
4148 static int mov_read_trex(MOVContext *c, AVIOContext *pb, MOVAtom atom)
4153 if ((uint64_t)c->trex_count+1 >= UINT_MAX / sizeof(*c->trex_data))
4154 return AVERROR_INVALIDDATA;
4155 if ((err = av_reallocp_array(&c->trex_data, c->trex_count + 1,
4156 sizeof(*c->trex_data))) < 0) {
4161 c->fc->duration = AV_NOPTS_VALUE; // the duration from mvhd is not representing the whole file when fragments are used.
4163 trex = &c->trex_data[c->trex_count++];
4164 avio_r8(pb); /* version */
4165 avio_rb24(pb); /* flags */
4166 trex->track_id = avio_rb32(pb);
4167 trex->stsd_id = avio_rb32(pb);
4168 trex->duration = avio_rb32(pb);
4169 trex->size = avio_rb32(pb);
4170 trex->flags = avio_rb32(pb);
4174 static int mov_read_tfdt(MOVContext *c, AVIOContext *pb, MOVAtom atom)
4176 MOVFragment *frag = &c->fragment;
4177 AVStream *st = NULL;
4178 MOVStreamContext *sc;
4181 for (i = 0; i < c->fc->nb_streams; i++) {
4182 if (c->fc->streams[i]->id == frag->track_id) {
4183 st = c->fc->streams[i];
4188 av_log(c->fc, AV_LOG_ERROR, "could not find corresponding track id %u\n", frag->track_id);
4189 return AVERROR_INVALIDDATA;
4192 if (sc->pseudo_stream_id + 1 != frag->stsd_id)
4194 version = avio_r8(pb);
4195 avio_rb24(pb); /* flags */
4197 sc->track_end = avio_rb64(pb);
4199 sc->track_end = avio_rb32(pb);
4204 static int mov_read_trun(MOVContext *c, AVIOContext *pb, MOVAtom atom)
4206 MOVFragment *frag = &c->fragment;
4207 AVStream *st = NULL;
4208 MOVStreamContext *sc;
4212 int data_offset = 0;
4213 unsigned entries, first_sample_flags = frag->flags;
4214 int flags, distance, i, err;
4216 for (i = 0; i < c->fc->nb_streams; i++) {
4217 if (c->fc->streams[i]->id == frag->track_id) {
4218 st = c->fc->streams[i];
4223 av_log(c->fc, AV_LOG_ERROR, "could not find corresponding track id %u\n", frag->track_id);
4224 return AVERROR_INVALIDDATA;
4227 if (sc->pseudo_stream_id+1 != frag->stsd_id && sc->pseudo_stream_id != -1)
4229 avio_r8(pb); /* version */
4230 flags = avio_rb24(pb);
4231 entries = avio_rb32(pb);
4232 av_log(c->fc, AV_LOG_TRACE, "flags 0x%x entries %u\n", flags, entries);
4234 /* Always assume the presence of composition time offsets.
4235 * Without this assumption, for instance, we cannot deal with a track in fragmented movies that meet the following.
4236 * 1) in the initial movie, there are no samples.
4237 * 2) in the first movie fragment, there is only one sample without composition time offset.
4238 * 3) in the subsequent movie fragments, there are samples with composition time offset. */
4239 if (!sc->ctts_count && sc->sample_count)
4241 /* Complement ctts table if moov atom doesn't have ctts atom. */
4242 ctts_data = av_realloc(NULL, sizeof(*sc->ctts_data));
4244 return AVERROR(ENOMEM);
4245 sc->ctts_data = ctts_data;
4246 sc->ctts_data[sc->ctts_count].count = sc->sample_count;
4247 sc->ctts_data[sc->ctts_count].duration = 0;
4250 if ((uint64_t)entries+sc->ctts_count >= UINT_MAX/sizeof(*sc->ctts_data))
4251 return AVERROR_INVALIDDATA;
4252 if ((err = av_reallocp_array(&sc->ctts_data, entries + sc->ctts_count,
4253 sizeof(*sc->ctts_data))) < 0) {
4257 if (flags & MOV_TRUN_DATA_OFFSET) data_offset = avio_rb32(pb);
4258 if (flags & MOV_TRUN_FIRST_SAMPLE_FLAGS) first_sample_flags = avio_rb32(pb);
4259 dts = sc->track_end - sc->time_offset;
4260 offset = frag->base_data_offset + data_offset;
4262 av_log(c->fc, AV_LOG_TRACE, "first sample flags 0x%x\n", first_sample_flags);
4263 for (i = 0; i < entries && !pb->eof_reached; i++) {
4264 unsigned sample_size = frag->size;
4265 int sample_flags = i ? frag->flags : first_sample_flags;
4266 unsigned sample_duration = frag->duration;
4269 if (flags & MOV_TRUN_SAMPLE_DURATION) sample_duration = avio_rb32(pb);
4270 if (flags & MOV_TRUN_SAMPLE_SIZE) sample_size = avio_rb32(pb);
4271 if (flags & MOV_TRUN_SAMPLE_FLAGS) sample_flags = avio_rb32(pb);
4272 sc->ctts_data[sc->ctts_count].count = 1;
4273 sc->ctts_data[sc->ctts_count].duration = (flags & MOV_TRUN_SAMPLE_CTS) ?
4275 mov_update_dts_shift(sc, sc->ctts_data[sc->ctts_count].duration);
4276 if (frag->time != AV_NOPTS_VALUE) {
4277 if (c->use_mfra_for == FF_MOV_FLAG_MFRA_PTS) {
4278 int64_t pts = frag->time;
4279 av_log(c->fc, AV_LOG_DEBUG, "found frag time %"PRId64
4280 " sc->dts_shift %d ctts.duration %d"
4281 " sc->time_offset %"PRId64" flags & MOV_TRUN_SAMPLE_CTS %d\n", pts,
4282 sc->dts_shift, sc->ctts_data[sc->ctts_count].duration,
4283 sc->time_offset, flags & MOV_TRUN_SAMPLE_CTS);
4284 dts = pts - sc->dts_shift;
4285 if (flags & MOV_TRUN_SAMPLE_CTS) {
4286 dts -= sc->ctts_data[sc->ctts_count].duration;
4288 dts -= sc->time_offset;
4290 av_log(c->fc, AV_LOG_DEBUG, "calculated into dts %"PRId64"\n", dts);
4292 dts = frag->time - sc->time_offset;
4293 av_log(c->fc, AV_LOG_DEBUG, "found frag time %"PRId64
4294 ", using it for dts\n", dts);
4296 frag->time = AV_NOPTS_VALUE;
4299 if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO)
4303 !(sample_flags & (MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC |
4304 MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES));
4307 err = av_add_index_entry(st, offset, dts, sample_size, distance,
4308 keyframe ? AVINDEX_KEYFRAME : 0);
4310 av_log(c->fc, AV_LOG_ERROR, "Failed to add index entry\n");
4312 av_log(c->fc, AV_LOG_TRACE, "AVIndex stream %d, sample %u, offset %"PRIx64", dts %"PRId64", "
4313 "size %u, distance %d, keyframe %d\n", st->index, sc->sample_count+i,
4314 offset, dts, sample_size, distance, keyframe);
4316 dts += sample_duration;
4317 offset += sample_size;
4318 sc->data_size += sample_size;
4319 sc->duration_for_fps += sample_duration;
4320 sc->nb_frames_for_fps ++;
4323 if (pb->eof_reached)
4326 frag->implicit_offset = offset;
4328 sc->track_end = dts + sc->time_offset;
4329 if (st->duration < sc->track_end)
4330 st->duration = sc->track_end;
4335 static int mov_read_sidx(MOVContext *c, AVIOContext *pb, MOVAtom atom)
4337 int64_t offset = avio_tell(pb) + atom.size, pts;
4339 unsigned i, track_id;
4340 AVStream *st = NULL;
4342 MOVStreamContext *sc, *ref_sc;
4343 MOVFragmentIndex *index = NULL;
4344 MOVFragmentIndex **tmp;
4345 AVRational timescale;
4347 version = avio_r8(pb);
4349 avpriv_request_sample(c->fc, "sidx version %u", version);
4353 avio_rb24(pb); // flags
4355 track_id = avio_rb32(pb); // Reference ID
4356 for (i = 0; i < c->fc->nb_streams; i++) {
4357 if (c->fc->streams[i]->id == track_id) {
4358 st = c->fc->streams[i];
4363 av_log(c->fc, AV_LOG_WARNING, "could not find corresponding track id %d\n", track_id);
4369 timescale = av_make_q(1, avio_rb32(pb));
4371 if (timescale.den <= 0) {
4372 av_log(c->fc, AV_LOG_ERROR, "Invalid sidx timescale 1/%d\n", timescale.den);
4373 return AVERROR_INVALIDDATA;
4377 pts = avio_rb32(pb);
4378 offset += avio_rb32(pb);
4380 pts = avio_rb64(pb);
4381 offset += avio_rb64(pb);
4384 avio_rb16(pb); // reserved
4386 index = av_mallocz(sizeof(MOVFragmentIndex));
4388 return AVERROR(ENOMEM);
4390 index->track_id = track_id;
4392 index->item_count = avio_rb16(pb);
4393 index->items = av_mallocz_array(index->item_count, sizeof(MOVFragmentIndexItem));
4395 if (!index->items) {
4397 return AVERROR(ENOMEM);
4400 for (i = 0; i < index->item_count; i++) {
4401 uint32_t size = avio_rb32(pb);
4402 uint32_t duration = avio_rb32(pb);
4403 if (size & 0x80000000) {
4404 avpriv_request_sample(c->fc, "sidx reference_type 1");
4405 av_freep(&index->items);
4407 return AVERROR_PATCHWELCOME;
4409 avio_rb32(pb); // sap_flags
4410 index->items[i].moof_offset = offset;
4411 index->items[i].time = av_rescale_q(pts, st->time_base, timescale);
4416 st->duration = sc->track_end = pts;
4418 tmp = av_realloc_array(c->fragment_index_data,
4419 c->fragment_index_count + 1,
4420 sizeof(MOVFragmentIndex*));
4422 av_freep(&index->items);
4424 return AVERROR(ENOMEM);
4427 c->fragment_index_data = tmp;
4428 c->fragment_index_data[c->fragment_index_count++] = index;
4431 if (offset == avio_size(pb)) {
4432 for (i = 0; i < c->fc->nb_streams; i++) {
4433 if (c->fc->streams[i]->id == c->fragment_index_data[0]->track_id) {
4434 ref_st = c->fc->streams[i];
4435 ref_sc = ref_st->priv_data;
4439 for (i = 0; i < c->fc->nb_streams; i++) {
4440 st = c->fc->streams[i];
4442 if (!sc->has_sidx) {
4443 st->duration = sc->track_end = av_rescale(ref_st->duration, sc->time_scale, ref_sc->time_scale);
4447 c->fragment_index_complete = 1;
4453 /* this atom should be null (from specs), but some buggy files put the 'moov' atom inside it... */
4454 /* like the files created with Adobe Premiere 5.0, for samples see */
4455 /* http://graphics.tudelft.nl/~wouter/publications/soundtests/ */
4456 static int mov_read_wide(MOVContext *c, AVIOContext *pb, MOVAtom atom)
4461 return 0; /* continue */
4462 if (avio_rb32(pb) != 0) { /* 0 sized mdat atom... use the 'wide' atom size */
4463 avio_skip(pb, atom.size - 4);
4466 atom.type = avio_rl32(pb);
4468 if (atom.type != MKTAG('m','d','a','t')) {
4469 avio_skip(pb, atom.size);
4472 err = mov_read_mdat(c, pb, atom);
4476 static int mov_read_cmov(MOVContext *c, AVIOContext *pb, MOVAtom atom)
4481 uint8_t *moov_data; /* uncompressed data */
4482 long cmov_len, moov_len;
4485 avio_rb32(pb); /* dcom atom */
4486 if (avio_rl32(pb) != MKTAG('d','c','o','m'))
4487 return AVERROR_INVALIDDATA;
4488 if (avio_rl32(pb) != MKTAG('z','l','i','b')) {
4489 av_log(c->fc, AV_LOG_ERROR, "unknown compression for cmov atom !\n");
4490 return AVERROR_INVALIDDATA;
4492 avio_rb32(pb); /* cmvd atom */
4493 if (avio_rl32(pb) != MKTAG('c','m','v','d'))
4494 return AVERROR_INVALIDDATA;
4495 moov_len = avio_rb32(pb); /* uncompressed size */
4496 cmov_len = atom.size - 6 * 4;
4498 cmov_data = av_malloc(cmov_len);
4500 return AVERROR(ENOMEM);
4501 moov_data = av_malloc(moov_len);
4504 return AVERROR(ENOMEM);
4506 ret = ffio_read_size(pb, cmov_data, cmov_len);
4508 goto free_and_return;
4510 if (uncompress (moov_data, (uLongf *) &moov_len, (const Bytef *)cmov_data, cmov_len) != Z_OK)
4511 goto free_and_return;
4512 if (ffio_init_context(&ctx, moov_data, moov_len, 0, NULL, NULL, NULL, NULL) != 0)
4513 goto free_and_return;
4514 ctx.seekable = AVIO_SEEKABLE_NORMAL;
4515 atom.type = MKTAG('m','o','o','v');
4516 atom.size = moov_len;
4517 ret = mov_read_default(c, &ctx, atom);
4523 av_log(c->fc, AV_LOG_ERROR, "this file requires zlib support compiled in\n");
4524 return AVERROR(ENOSYS);
4528 /* edit list atom */
4529 static int mov_read_elst(MOVContext *c, AVIOContext *pb, MOVAtom atom)
4531 MOVStreamContext *sc;
4532 int i, edit_count, version;
4534 if (c->fc->nb_streams < 1 || c->ignore_editlist)
4536 sc = c->fc->streams[c->fc->nb_streams-1]->priv_data;
4538 version = avio_r8(pb); /* version */
4539 avio_rb24(pb); /* flags */
4540 edit_count = avio_rb32(pb); /* entries */
4545 av_log(c->fc, AV_LOG_WARNING, "Duplicated ELST atom\n");
4546 av_free(sc->elst_data);
4548 sc->elst_data = av_malloc_array(edit_count, sizeof(*sc->elst_data));
4550 return AVERROR(ENOMEM);
4552 av_log(c->fc, AV_LOG_TRACE, "track[%u].edit_count = %i\n", c->fc->nb_streams - 1, edit_count);
4553 for (i = 0; i < edit_count && !pb->eof_reached; i++) {
4554 MOVElst *e = &sc->elst_data[i];
4557 e->duration = avio_rb64(pb);
4558 e->time = avio_rb64(pb);
4560 e->duration = avio_rb32(pb); /* segment duration */
4561 e->time = (int32_t)avio_rb32(pb); /* media time */
4563 e->rate = avio_rb32(pb) / 65536.0;
4564 av_log(c->fc, AV_LOG_TRACE, "duration=%"PRId64" time=%"PRId64" rate=%f\n",
4565 e->duration, e->time, e->rate);
4567 if (e->time < 0 && e->time != -1 &&
4568 c->fc->strict_std_compliance >= FF_COMPLIANCE_STRICT) {
4569 av_log(c->fc, AV_LOG_ERROR, "Track %d, edit %d: Invalid edit list media time=%"PRId64"\n",
4570 c->fc->nb_streams-1, i, e->time);
4571 return AVERROR_INVALIDDATA;
4579 static int mov_read_tmcd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
4581 MOVStreamContext *sc;
4583 if (c->fc->nb_streams < 1)
4584 return AVERROR_INVALIDDATA;
4585 sc = c->fc->streams[c->fc->nb_streams - 1]->priv_data;
4586 sc->timecode_track = avio_rb32(pb);
4590 static int mov_read_st3d(MOVContext *c, AVIOContext *pb, MOVAtom atom)
4593 MOVStreamContext *sc;
4594 enum AVStereo3DType type;
4597 if (c->fc->nb_streams < 1)
4600 st = c->fc->streams[c->fc->nb_streams - 1];
4603 if (atom.size < 5) {
4604 av_log(c->fc, AV_LOG_ERROR, "Empty stereoscopic video box\n");
4605 return AVERROR_INVALIDDATA;
4607 avio_skip(pb, 4); /* version + flags */
4612 type = AV_STEREO3D_2D;
4615 type = AV_STEREO3D_TOPBOTTOM;
4618 type = AV_STEREO3D_SIDEBYSIDE;
4621 av_log(c->fc, AV_LOG_WARNING, "Unknown st3d mode value %d\n", mode);
4625 sc->stereo3d = av_stereo3d_alloc();
4627 return AVERROR(ENOMEM);
4629 sc->stereo3d->type = type;
4633 static int mov_read_sv3d(MOVContext *c, AVIOContext *pb, MOVAtom atom)
4636 MOVStreamContext *sc;
4638 int32_t yaw, pitch, roll;
4639 uint32_t l = 0, t = 0, r = 0, b = 0;
4640 uint32_t tag, padding = 0;
4641 enum AVSphericalProjection projection;
4643 if (c->fc->nb_streams < 1)
4646 st = c->fc->streams[c->fc->nb_streams - 1];
4649 if (atom.size < 8) {
4650 av_log(c->fc, AV_LOG_ERROR, "Empty spherical video box\n");
4651 return AVERROR_INVALIDDATA;
4654 size = avio_rb32(pb);
4655 if (size <= 12 || size > atom.size)
4656 return AVERROR_INVALIDDATA;
4658 tag = avio_rl32(pb);
4659 if (tag != MKTAG('s','v','h','d')) {
4660 av_log(c->fc, AV_LOG_ERROR, "Missing spherical video header\n");
4663 avio_skip(pb, 4); /* version + flags */
4664 avio_skip(pb, size - 12); /* metadata_source */
4666 size = avio_rb32(pb);
4667 if (size > atom.size)
4668 return AVERROR_INVALIDDATA;
4670 tag = avio_rl32(pb);
4671 if (tag != MKTAG('p','r','o','j')) {
4672 av_log(c->fc, AV_LOG_ERROR, "Missing projection box\n");
4676 size = avio_rb32(pb);
4677 if (size > atom.size)
4678 return AVERROR_INVALIDDATA;
4680 tag = avio_rl32(pb);
4681 if (tag != MKTAG('p','r','h','d')) {
4682 av_log(c->fc, AV_LOG_ERROR, "Missing projection header box\n");
4685 avio_skip(pb, 4); /* version + flags */
4687 /* 16.16 fixed point */
4688 yaw = avio_rb32(pb);
4689 pitch = avio_rb32(pb);
4690 roll = avio_rb32(pb);
4692 size = avio_rb32(pb);
4693 if (size > atom.size)
4694 return AVERROR_INVALIDDATA;
4696 tag = avio_rl32(pb);
4697 avio_skip(pb, 4); /* version + flags */
4699 case MKTAG('c','b','m','p'):
4700 layout = avio_rb32(pb);
4702 av_log(c->fc, AV_LOG_WARNING,
4703 "Unsupported cubemap layout %d\n", layout);
4706 projection = AV_SPHERICAL_CUBEMAP;
4707 padding = avio_rb32(pb);
4709 case MKTAG('e','q','u','i'):
4715 if (b >= UINT_MAX - t || r >= UINT_MAX - l) {
4716 av_log(c->fc, AV_LOG_ERROR,
4717 "Invalid bounding rectangle coordinates "
4718 "%"PRIu32",%"PRIu32",%"PRIu32",%"PRIu32"\n", l, t, r, b);
4719 return AVERROR_INVALIDDATA;
4722 if (l || t || r || b)
4723 projection = AV_SPHERICAL_EQUIRECTANGULAR_TILE;
4725 projection = AV_SPHERICAL_EQUIRECTANGULAR;
4728 av_log(c->fc, AV_LOG_ERROR, "Unknown projection type\n");
4732 sc->spherical = av_spherical_alloc(&sc->spherical_size);
4734 return AVERROR(ENOMEM);
4736 sc->spherical->projection = projection;
4738 sc->spherical->yaw = yaw;
4739 sc->spherical->pitch = pitch;
4740 sc->spherical->roll = roll;
4742 sc->spherical->padding = padding;
4744 sc->spherical->bound_left = l;
4745 sc->spherical->bound_top = t;
4746 sc->spherical->bound_right = r;
4747 sc->spherical->bound_bottom = b;
4752 static int mov_parse_uuid_spherical(MOVStreamContext *sc, AVIOContext *pb, size_t len)
4755 uint8_t *buffer = av_malloc(len + 1);
4759 return AVERROR(ENOMEM);
4762 ret = ffio_read_size(pb, buffer, len);
4766 /* Check for mandatory keys and values, try to support XML as best-effort */
4767 if (av_stristr(buffer, "<GSpherical:StitchingSoftware>") &&
4768 (val = av_stristr(buffer, "<GSpherical:Spherical>")) &&
4769 av_stristr(val, "true") &&
4770 (val = av_stristr(buffer, "<GSpherical:Stitched>")) &&
4771 av_stristr(val, "true") &&
4772 (val = av_stristr(buffer, "<GSpherical:ProjectionType>")) &&
4773 av_stristr(val, "equirectangular")) {
4774 sc->spherical = av_spherical_alloc(&sc->spherical_size);
4778 sc->spherical->projection = AV_SPHERICAL_EQUIRECTANGULAR;
4780 if (av_stristr(buffer, "<GSpherical:StereoMode>")) {
4781 enum AVStereo3DType mode;
4783 if (av_stristr(buffer, "left-right"))
4784 mode = AV_STEREO3D_SIDEBYSIDE;
4785 else if (av_stristr(buffer, "top-bottom"))
4786 mode = AV_STEREO3D_TOPBOTTOM;
4788 mode = AV_STEREO3D_2D;
4790 sc->stereo3d = av_stereo3d_alloc();
4794 sc->stereo3d->type = mode;
4798 val = av_stristr(buffer, "<GSpherical:InitialViewHeadingDegrees>");
4800 sc->spherical->yaw = strtol(val, NULL, 10) * (1 << 16);
4801 val = av_stristr(buffer, "<GSpherical:InitialViewPitchDegrees>");
4803 sc->spherical->pitch = strtol(val, NULL, 10) * (1 << 16);
4804 val = av_stristr(buffer, "<GSpherical:InitialViewRollDegrees>");
4806 sc->spherical->roll = strtol(val, NULL, 10) * (1 << 16);
4814 static int mov_read_uuid(MOVContext *c, AVIOContext *pb, MOVAtom atom)
4817 MOVStreamContext *sc;
4820 static const uint8_t uuid_isml_manifest[] = {
4821 0xa5, 0xd4, 0x0b, 0x30, 0xe8, 0x14, 0x11, 0xdd,
4822 0xba, 0x2f, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66
4824 static const uint8_t uuid_xmp[] = {
4825 0xbe, 0x7a, 0xcf, 0xcb, 0x97, 0xa9, 0x42, 0xe8,
4826 0x9c, 0x71, 0x99, 0x94, 0x91, 0xe3, 0xaf, 0xac
4828 static const uint8_t uuid_spherical[] = {
4829 0xff, 0xcc, 0x82, 0x63, 0xf8, 0x55, 0x4a, 0x93,
4830 0x88, 0x14, 0x58, 0x7a, 0x02, 0x52, 0x1f, 0xdd,
4833 if (atom.size < sizeof(uuid) || atom.size >= FFMIN(INT_MAX, SIZE_MAX))
4834 return AVERROR_INVALIDDATA;
4836 if (c->fc->nb_streams < 1)
4838 st = c->fc->streams[c->fc->nb_streams - 1];
4841 ret = avio_read(pb, uuid, sizeof(uuid));
4844 } else if (ret != sizeof(uuid)) {
4845 return AVERROR_INVALIDDATA;
4847 if (!memcmp(uuid, uuid_isml_manifest, sizeof(uuid))) {
4848 uint8_t *buffer, *ptr;
4850 size_t len = atom.size - sizeof(uuid);
4853 return AVERROR_INVALIDDATA;
4855 ret = avio_skip(pb, 4); // zeroes
4858 buffer = av_mallocz(len + 1);
4860 return AVERROR(ENOMEM);
4862 ret = avio_read(pb, buffer, len);
4866 } else if (ret != len) {
4868 return AVERROR_INVALIDDATA;
4872 while ((ptr = av_stristr(ptr, "systemBitrate=\""))) {
4873 ptr += sizeof("systemBitrate=\"") - 1;
4874 c->bitrates_count++;
4875 c->bitrates = av_realloc_f(c->bitrates, c->bitrates_count, sizeof(*c->bitrates));
4877 c->bitrates_count = 0;
4879 return AVERROR(ENOMEM);
4882 ret = strtol(ptr, &endptr, 10);
4883 if (ret < 0 || errno || *endptr != '"') {
4884 c->bitrates[c->bitrates_count - 1] = 0;
4886 c->bitrates[c->bitrates_count - 1] = ret;
4891 } else if (!memcmp(uuid, uuid_xmp, sizeof(uuid))) {
4893 size_t len = atom.size - sizeof(uuid);
4894 if (c->export_xmp) {
4895 buffer = av_mallocz(len + 1);
4897 return AVERROR(ENOMEM);
4899 ret = avio_read(pb, buffer, len);
4903 } else if (ret != len) {
4905 return AVERROR_INVALIDDATA;
4908 av_dict_set(&c->fc->metadata, "xmp", buffer, 0);
4911 // skip all uuid atom, which makes it fast for long uuid-xmp file
4912 ret = avio_skip(pb, len);
4916 } else if (!memcmp(uuid, uuid_spherical, sizeof(uuid))) {
4917 size_t len = atom.size - sizeof(uuid);
4918 ret = mov_parse_uuid_spherical(sc, pb, len);
4922 av_log(c->fc, AV_LOG_WARNING, "Invalid spherical metadata found\n"); }
4927 static int mov_read_free(MOVContext *c, AVIOContext *pb, MOVAtom atom)
4930 uint8_t content[16];
4935 ret = avio_read(pb, content, FFMIN(sizeof(content), atom.size));
4941 && !memcmp(content, "Anevia\x1A\x1A", 8)
4942 && c->use_mfra_for == FF_MOV_FLAG_MFRA_AUTO) {
4943 c->use_mfra_for = FF_MOV_FLAG_MFRA_PTS;
4949 static int mov_read_frma(MOVContext *c, AVIOContext *pb, MOVAtom atom)
4951 uint32_t format = avio_rl32(pb);
4952 MOVStreamContext *sc;
4956 if (c->fc->nb_streams < 1)
4958 st = c->fc->streams[c->fc->nb_streams - 1];
4963 case MKTAG('e','n','c','v'): // encrypted video
4964 case MKTAG('e','n','c','a'): // encrypted audio
4965 id = mov_codec_id(st, format);
4966 if (st->codecpar->codec_id != AV_CODEC_ID_NONE &&
4967 st->codecpar->codec_id != id) {
4968 av_log(c->fc, AV_LOG_WARNING,
4969 "ignoring 'frma' atom of '%.4s', stream has codec id %d\n",
4970 (char*)&format, st->codecpar->codec_id);
4974 st->codecpar->codec_id = id;
4975 sc->format = format;
4979 if (format != sc->format) {
4980 av_log(c->fc, AV_LOG_WARNING,
4981 "ignoring 'frma' atom of '%.4s', stream format is '%.4s'\n",
4982 (char*)&format, (char*)&sc->format);
4990 static int mov_read_senc(MOVContext *c, AVIOContext *pb, MOVAtom atom)
4993 MOVStreamContext *sc;
4994 size_t auxiliary_info_size;
4996 if (c->decryption_key_len == 0 || c->fc->nb_streams < 1)
4999 st = c->fc->streams[c->fc->nb_streams - 1];
5002 if (sc->cenc.aes_ctr) {
5003 av_log(c->fc, AV_LOG_ERROR, "duplicate senc atom\n");
5004 return AVERROR_INVALIDDATA;
5007 avio_r8(pb); /* version */
5008 sc->cenc.use_subsamples = avio_rb24(pb) & 0x02; /* flags */
5010 avio_rb32(pb); /* entries */
5012 if (atom.size < 8 || atom.size > FFMIN(INT_MAX, SIZE_MAX)) {
5013 av_log(c->fc, AV_LOG_ERROR, "senc atom size %"PRId64" invalid\n", atom.size);
5014 return AVERROR_INVALIDDATA;
5017 /* save the auxiliary info as is */
5018 auxiliary_info_size = atom.size - 8;
5020 sc->cenc.auxiliary_info = av_malloc(auxiliary_info_size);
5021 if (!sc->cenc.auxiliary_info) {
5022 return AVERROR(ENOMEM);
5025 sc->cenc.auxiliary_info_end = sc->cenc.auxiliary_info + auxiliary_info_size;
5026 sc->cenc.auxiliary_info_pos = sc->cenc.auxiliary_info;
5027 sc->cenc.auxiliary_info_index = 0;
5029 if (avio_read(pb, sc->cenc.auxiliary_info, auxiliary_info_size) != auxiliary_info_size) {
5030 av_log(c->fc, AV_LOG_ERROR, "failed to read the auxiliary info");
5031 return AVERROR_INVALIDDATA;
5034 /* initialize the cipher */
5035 sc->cenc.aes_ctr = av_aes_ctr_alloc();
5036 if (!sc->cenc.aes_ctr) {
5037 return AVERROR(ENOMEM);
5040 return av_aes_ctr_init(sc->cenc.aes_ctr, c->decryption_key);
5043 static int mov_read_saiz(MOVContext *c, AVIOContext *pb, MOVAtom atom)
5046 MOVStreamContext *sc;
5048 int atom_header_size;
5051 if (c->decryption_key_len == 0 || c->fc->nb_streams < 1)
5054 st = c->fc->streams[c->fc->nb_streams - 1];
5057 if (sc->cenc.auxiliary_info_sizes || sc->cenc.auxiliary_info_default_size) {
5058 av_log(c->fc, AV_LOG_ERROR, "duplicate saiz atom\n");
5059 return AVERROR_INVALIDDATA;
5062 atom_header_size = 9;
5064 avio_r8(pb); /* version */
5065 flags = avio_rb24(pb);
5067 if ((flags & 0x01) != 0) {
5068 atom_header_size += 8;
5070 avio_rb32(pb); /* info type */
5071 avio_rb32(pb); /* info type param */
5074 sc->cenc.auxiliary_info_default_size = avio_r8(pb);
5075 avio_rb32(pb); /* entries */
5077 if (atom.size <= atom_header_size) {
5081 if (atom.size > FFMIN(INT_MAX, SIZE_MAX)) {
5082 av_log(c->fc, AV_LOG_ERROR, "saiz atom auxiliary_info_sizes size %"PRId64" invalid\n", atom.size);
5083 return AVERROR_INVALIDDATA;
5086 /* save the auxiliary info sizes as is */
5087 data_size = atom.size - atom_header_size;
5089 sc->cenc.auxiliary_info_sizes = av_malloc(data_size);
5090 if (!sc->cenc.auxiliary_info_sizes) {
5091 return AVERROR(ENOMEM);
5094 sc->cenc.auxiliary_info_sizes_count = data_size;
5096 if (avio_read(pb, sc->cenc.auxiliary_info_sizes, data_size) != data_size) {
5097 av_log(c->fc, AV_LOG_ERROR, "failed to read the auxiliary info sizes");
5098 return AVERROR_INVALIDDATA;
5104 static int mov_read_dfla(MOVContext *c, AVIOContext *pb, MOVAtom atom)
5107 int last, type, size, ret;
5110 if (c->fc->nb_streams < 1)
5112 st = c->fc->streams[c->fc->nb_streams-1];
5114 if ((uint64_t)atom.size > (1<<30) || atom.size < 42)
5115 return AVERROR_INVALIDDATA;
5117 /* Check FlacSpecificBox version. */
5118 if (avio_r8(pb) != 0)
5119 return AVERROR_INVALIDDATA;
5121 avio_rb24(pb); /* Flags */
5123 avio_read(pb, buf, sizeof(buf));
5124 flac_parse_block_header(buf, &last, &type, &size);
5126 if (type != FLAC_METADATA_TYPE_STREAMINFO || size != FLAC_STREAMINFO_SIZE) {
5127 av_log(c->fc, AV_LOG_ERROR, "STREAMINFO must be first FLACMetadataBlock\n");
5128 return AVERROR_INVALIDDATA;
5131 ret = ff_get_extradata(c->fc, st->codecpar, pb, size);
5136 av_log(c->fc, AV_LOG_WARNING, "non-STREAMINFO FLACMetadataBlock(s) ignored\n");
5141 static int mov_seek_auxiliary_info(MOVContext *c, MOVStreamContext *sc, int64_t index)
5143 size_t auxiliary_info_seek_offset = 0;
5146 if (sc->cenc.auxiliary_info_default_size) {
5147 auxiliary_info_seek_offset = (size_t)sc->cenc.auxiliary_info_default_size * index;
5148 } else if (sc->cenc.auxiliary_info_sizes) {
5149 if (index > sc->cenc.auxiliary_info_sizes_count) {
5150 av_log(c, AV_LOG_ERROR, "current sample %"PRId64" greater than the number of auxiliary info sample sizes %"SIZE_SPECIFIER"\n",
5151 index, sc->cenc.auxiliary_info_sizes_count);
5152 return AVERROR_INVALIDDATA;
5155 for (i = 0; i < index; i++) {
5156 auxiliary_info_seek_offset += sc->cenc.auxiliary_info_sizes[i];
5160 if (auxiliary_info_seek_offset > sc->cenc.auxiliary_info_end - sc->cenc.auxiliary_info) {
5161 av_log(c, AV_LOG_ERROR, "auxiliary info offset %"SIZE_SPECIFIER" greater than auxiliary info size %"SIZE_SPECIFIER"\n",
5162 auxiliary_info_seek_offset, (size_t)(sc->cenc.auxiliary_info_end - sc->cenc.auxiliary_info));
5163 return AVERROR_INVALIDDATA;
5166 sc->cenc.auxiliary_info_pos = sc->cenc.auxiliary_info + auxiliary_info_seek_offset;
5167 sc->cenc.auxiliary_info_index = index;
5171 static int cenc_filter(MOVContext *c, MOVStreamContext *sc, int64_t index, uint8_t *input, int size)
5173 uint32_t encrypted_bytes;
5174 uint16_t subsample_count;
5175 uint16_t clear_bytes;
5176 uint8_t* input_end = input + size;
5179 if (index != sc->cenc.auxiliary_info_index) {
5180 ret = mov_seek_auxiliary_info(c, sc, index);
5187 if (AES_CTR_IV_SIZE > sc->cenc.auxiliary_info_end - sc->cenc.auxiliary_info_pos) {
5188 av_log(c->fc, AV_LOG_ERROR, "failed to read iv from the auxiliary info\n");
5189 return AVERROR_INVALIDDATA;
5192 av_aes_ctr_set_iv(sc->cenc.aes_ctr, sc->cenc.auxiliary_info_pos);
5193 sc->cenc.auxiliary_info_pos += AES_CTR_IV_SIZE;
5195 if (!sc->cenc.use_subsamples)
5197 /* decrypt the whole packet */
5198 av_aes_ctr_crypt(sc->cenc.aes_ctr, input, input, size);
5202 /* read the subsample count */
5203 if (sizeof(uint16_t) > sc->cenc.auxiliary_info_end - sc->cenc.auxiliary_info_pos) {
5204 av_log(c->fc, AV_LOG_ERROR, "failed to read subsample count from the auxiliary info\n");
5205 return AVERROR_INVALIDDATA;
5208 subsample_count = AV_RB16(sc->cenc.auxiliary_info_pos);
5209 sc->cenc.auxiliary_info_pos += sizeof(uint16_t);
5211 for (; subsample_count > 0; subsample_count--)
5213 if (6 > sc->cenc.auxiliary_info_end - sc->cenc.auxiliary_info_pos) {
5214 av_log(c->fc, AV_LOG_ERROR, "failed to read subsample from the auxiliary info\n");
5215 return AVERROR_INVALIDDATA;
5218 /* read the number of clear / encrypted bytes */
5219 clear_bytes = AV_RB16(sc->cenc.auxiliary_info_pos);
5220 sc->cenc.auxiliary_info_pos += sizeof(uint16_t);
5221 encrypted_bytes = AV_RB32(sc->cenc.auxiliary_info_pos);
5222 sc->cenc.auxiliary_info_pos += sizeof(uint32_t);
5224 if ((uint64_t)clear_bytes + encrypted_bytes > input_end - input) {
5225 av_log(c->fc, AV_LOG_ERROR, "subsample size exceeds the packet size left\n");
5226 return AVERROR_INVALIDDATA;
5229 /* skip the clear bytes */
5230 input += clear_bytes;
5232 /* decrypt the encrypted bytes */
5233 av_aes_ctr_crypt(sc->cenc.aes_ctr, input, input, encrypted_bytes);
5234 input += encrypted_bytes;
5237 if (input < input_end) {
5238 av_log(c->fc, AV_LOG_ERROR, "leftover packet bytes after subsample processing\n");
5239 return AVERROR_INVALIDDATA;
5242 sc->cenc.auxiliary_info_index++;
5246 static const MOVParseTableEntry mov_default_parse_table[] = {
5247 { MKTAG('A','C','L','R'), mov_read_aclr },
5248 { MKTAG('A','P','R','G'), mov_read_avid },
5249 { MKTAG('A','A','L','P'), mov_read_avid },
5250 { MKTAG('A','R','E','S'), mov_read_ares },
5251 { MKTAG('a','v','s','s'), mov_read_avss },
5252 { MKTAG('c','h','p','l'), mov_read_chpl },
5253 { MKTAG('c','o','6','4'), mov_read_stco },
5254 { MKTAG('c','o','l','r'), mov_read_colr },
5255 { MKTAG('c','t','t','s'), mov_read_ctts }, /* composition time to sample */
5256 { MKTAG('d','i','n','f'), mov_read_default },
5257 { MKTAG('D','p','x','E'), mov_read_dpxe },
5258 { MKTAG('d','r','e','f'), mov_read_dref },
5259 { MKTAG('e','d','t','s'), mov_read_default },
5260 { MKTAG('e','l','s','t'), mov_read_elst },
5261 { MKTAG('e','n','d','a'), mov_read_enda },
5262 { MKTAG('f','i','e','l'), mov_read_fiel },
5263 { MKTAG('a','d','r','m'), mov_read_adrm },
5264 { MKTAG('f','t','y','p'), mov_read_ftyp },
5265 { MKTAG('g','l','b','l'), mov_read_glbl },
5266 { MKTAG('h','d','l','r'), mov_read_hdlr },
5267 { MKTAG('i','l','s','t'), mov_read_ilst },
5268 { MKTAG('j','p','2','h'), mov_read_jp2h },
5269 { MKTAG('m','d','a','t'), mov_read_mdat },
5270 { MKTAG('m','d','h','d'), mov_read_mdhd },
5271 { MKTAG('m','d','i','a'), mov_read_default },
5272 { MKTAG('m','e','t','a'), mov_read_meta },
5273 { MKTAG('m','i','n','f'), mov_read_default },
5274 { MKTAG('m','o','o','f'), mov_read_moof },
5275 { MKTAG('m','o','o','v'), mov_read_moov },
5276 { MKTAG('m','v','e','x'), mov_read_default },
5277 { MKTAG('m','v','h','d'), mov_read_mvhd },
5278 { MKTAG('S','M','I',' '), mov_read_svq3 },
5279 { MKTAG('a','l','a','c'), mov_read_alac }, /* alac specific atom */
5280 { MKTAG('a','v','c','C'), mov_read_glbl },
5281 { MKTAG('p','a','s','p'), mov_read_pasp },
5282 { MKTAG('s','i','d','x'), mov_read_sidx },
5283 { MKTAG('s','t','b','l'), mov_read_default },
5284 { MKTAG('s','t','c','o'), mov_read_stco },
5285 { MKTAG('s','t','p','s'), mov_read_stps },
5286 { MKTAG('s','t','r','f'), mov_read_strf },
5287 { MKTAG('s','t','s','c'), mov_read_stsc },
5288 { MKTAG('s','t','s','d'), mov_read_stsd }, /* sample description */
5289 { MKTAG('s','t','s','s'), mov_read_stss }, /* sync sample */
5290 { MKTAG('s','t','s','z'), mov_read_stsz }, /* sample size */
5291 { MKTAG('s','t','t','s'), mov_read_stts },
5292 { MKTAG('s','t','z','2'), mov_read_stsz }, /* compact sample size */
5293 { MKTAG('t','k','h','d'), mov_read_tkhd }, /* track header */
5294 { MKTAG('t','f','d','t'), mov_read_tfdt },
5295 { MKTAG('t','f','h','d'), mov_read_tfhd }, /* track fragment header */
5296 { MKTAG('t','r','a','k'), mov_read_trak },
5297 { MKTAG('t','r','a','f'), mov_read_default },
5298 { MKTAG('t','r','e','f'), mov_read_default },
5299 { MKTAG('t','m','c','d'), mov_read_tmcd },
5300 { MKTAG('c','h','a','p'), mov_read_chap },
5301 { MKTAG('t','r','e','x'), mov_read_trex },
5302 { MKTAG('t','r','u','n'), mov_read_trun },
5303 { MKTAG('u','d','t','a'), mov_read_default },
5304 { MKTAG('w','a','v','e'), mov_read_wave },
5305 { MKTAG('e','s','d','s'), mov_read_esds },
5306 { MKTAG('d','a','c','3'), mov_read_dac3 }, /* AC-3 info */
5307 { MKTAG('d','e','c','3'), mov_read_dec3 }, /* EAC-3 info */
5308 { MKTAG('d','d','t','s'), mov_read_ddts }, /* DTS audio descriptor */
5309 { MKTAG('w','i','d','e'), mov_read_wide }, /* place holder */
5310 { MKTAG('w','f','e','x'), mov_read_wfex },
5311 { MKTAG('c','m','o','v'), mov_read_cmov },
5312 { MKTAG('c','h','a','n'), mov_read_chan }, /* channel layout */
5313 { MKTAG('d','v','c','1'), mov_read_dvc1 },
5314 { MKTAG('s','b','g','p'), mov_read_sbgp },
5315 { MKTAG('h','v','c','C'), mov_read_glbl },
5316 { MKTAG('u','u','i','d'), mov_read_uuid },
5317 { MKTAG('C','i','n', 0x8e), mov_read_targa_y216 },
5318 { MKTAG('f','r','e','e'), mov_read_free },
5319 { MKTAG('-','-','-','-'), mov_read_custom },
5320 { MKTAG('s','i','n','f'), mov_read_default },
5321 { MKTAG('f','r','m','a'), mov_read_frma },
5322 { MKTAG('s','e','n','c'), mov_read_senc },
5323 { MKTAG('s','a','i','z'), mov_read_saiz },
5324 { MKTAG('d','f','L','a'), mov_read_dfla },
5325 { MKTAG('s','t','3','d'), mov_read_st3d }, /* stereoscopic 3D video box */
5326 { MKTAG('s','v','3','d'), mov_read_sv3d }, /* spherical video box */
5330 static int mov_read_default(MOVContext *c, AVIOContext *pb, MOVAtom atom)
5332 int64_t total_size = 0;
5336 if (c->atom_depth > 10) {
5337 av_log(c->fc, AV_LOG_ERROR, "Atoms too deeply nested\n");
5338 return AVERROR_INVALIDDATA;
5343 atom.size = INT64_MAX;
5344 while (total_size + 8 <= atom.size && !avio_feof(pb)) {
5345 int (*parse)(MOVContext*, AVIOContext*, MOVAtom) = NULL;
5348 if (atom.size >= 8) {
5349 a.size = avio_rb32(pb);
5350 a.type = avio_rl32(pb);
5351 if (a.type == MKTAG('f','r','e','e') &&
5353 c->fc->strict_std_compliance < FF_COMPLIANCE_STRICT &&
5356 uint32_t *type = (uint32_t *)buf + 1;
5357 if (avio_read(pb, buf, 8) != 8)
5358 return AVERROR_INVALIDDATA;
5359 avio_seek(pb, -8, SEEK_CUR);
5360 if (*type == MKTAG('m','v','h','d') ||
5361 *type == MKTAG('c','m','o','v')) {
5362 av_log(c->fc, AV_LOG_ERROR, "Detected moov in a free atom.\n");
5363 a.type = MKTAG('m','o','o','v');
5366 if (atom.type != MKTAG('r','o','o','t') &&
5367 atom.type != MKTAG('m','o','o','v'))
5369 if (a.type == MKTAG('t','r','a','k') || a.type == MKTAG('m','d','a','t'))
5371 av_log(c->fc, AV_LOG_ERROR, "Broken file, trak/mdat not at top-level\n");
5378 if (a.size == 1 && total_size + 8 <= atom.size) { /* 64 bit extended size */
5379 a.size = avio_rb64(pb) - 8;
5383 av_log(c->fc, AV_LOG_TRACE, "type:'%s' parent:'%s' sz: %"PRId64" %"PRId64" %"PRId64"\n",
5384 av_fourcc2str(a.type), av_fourcc2str(atom.type), a.size, total_size, atom.size);
5386 a.size = atom.size - total_size + 8;
5391 a.size = FFMIN(a.size, atom.size - total_size);
5393 for (i = 0; mov_default_parse_table[i].type; i++)
5394 if (mov_default_parse_table[i].type == a.type) {
5395 parse = mov_default_parse_table[i].parse;
5399 // container is user data
5400 if (!parse && (atom.type == MKTAG('u','d','t','a') ||
5401 atom.type == MKTAG('i','l','s','t')))
5402 parse = mov_read_udta_string;
5404 // Supports parsing the QuickTime Metadata Keys.
5405 // https://developer.apple.com/library/mac/documentation/QuickTime/QTFF/Metadata/Metadata.html
5406 if (!parse && c->found_hdlr_mdta &&
5407 atom.type == MKTAG('m','e','t','a') &&
5408 a.type == MKTAG('k','e','y','s')) {
5409 parse = mov_read_keys;
5412 if (!parse) { /* skip leaf atoms data */
5413 avio_skip(pb, a.size);
5415 int64_t start_pos = avio_tell(pb);
5417 int err = parse(c, pb, a);
5422 if (c->found_moov && c->found_mdat &&
5423 ((!(pb->seekable & AVIO_SEEKABLE_NORMAL) || c->fc->flags & AVFMT_FLAG_IGNIDX || c->fragment_index_complete) ||
5424 start_pos + a.size == avio_size(pb))) {
5425 if (!(pb->seekable & AVIO_SEEKABLE_NORMAL) || c->fc->flags & AVFMT_FLAG_IGNIDX || c->fragment_index_complete)
5426 c->next_root_atom = start_pos + a.size;
5430 left = a.size - avio_tell(pb) + start_pos;
5431 if (left > 0) /* skip garbage at atom end */
5432 avio_skip(pb, left);
5433 else if (left < 0) {
5434 av_log(c->fc, AV_LOG_WARNING,
5435 "overread end of atom '%.4s' by %"PRId64" bytes\n",
5436 (char*)&a.type, -left);
5437 avio_seek(pb, left, SEEK_CUR);
5441 total_size += a.size;
5444 if (total_size < atom.size && atom.size < 0x7ffff)
5445 avio_skip(pb, atom.size - total_size);
5451 static int mov_probe(AVProbeData *p)
5456 int moov_offset = -1;
5458 /* check file header */
5461 /* ignore invalid offset */
5462 if ((offset + 8) > (unsigned int)p->buf_size)
5464 tag = AV_RL32(p->buf + offset + 4);
5466 /* check for obvious tags */
5467 case MKTAG('m','o','o','v'):
5468 moov_offset = offset + 4;
5469 case MKTAG('m','d','a','t'):
5470 case MKTAG('p','n','o','t'): /* detect movs with preview pics like ew.mov and april.mov */
5471 case MKTAG('u','d','t','a'): /* Packet Video PVAuthor adds this and a lot of more junk */
5472 case MKTAG('f','t','y','p'):
5473 if (AV_RB32(p->buf+offset) < 8 &&
5474 (AV_RB32(p->buf+offset) != 1 ||
5475 offset + 12 > (unsigned int)p->buf_size ||
5476 AV_RB64(p->buf+offset + 8) == 0)) {
5477 score = FFMAX(score, AVPROBE_SCORE_EXTENSION);
5478 } else if (tag == MKTAG('f','t','y','p') &&
5479 ( AV_RL32(p->buf + offset + 8) == MKTAG('j','p','2',' ')
5480 || AV_RL32(p->buf + offset + 8) == MKTAG('j','p','x',' ')
5482 score = FFMAX(score, 5);
5484 score = AVPROBE_SCORE_MAX;
5486 offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
5488 /* those are more common words, so rate then a bit less */
5489 case MKTAG('e','d','i','w'): /* xdcam files have reverted first tags */
5490 case MKTAG('w','i','d','e'):
5491 case MKTAG('f','r','e','e'):
5492 case MKTAG('j','u','n','k'):
5493 case MKTAG('p','i','c','t'):
5494 score = FFMAX(score, AVPROBE_SCORE_MAX - 5);
5495 offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
5497 case MKTAG(0x82,0x82,0x7f,0x7d):
5498 case MKTAG('s','k','i','p'):
5499 case MKTAG('u','u','i','d'):
5500 case MKTAG('p','r','f','l'):
5501 /* if we only find those cause probedata is too small at least rate them */
5502 score = FFMAX(score, AVPROBE_SCORE_EXTENSION);
5503 offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
5506 offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
5509 if(score > AVPROBE_SCORE_MAX - 50 && moov_offset != -1) {
5510 /* moov atom in the header - we should make sure that this is not a
5511 * MOV-packed MPEG-PS */
5512 offset = moov_offset;
5514 while(offset < (p->buf_size - 16)){ /* Sufficient space */
5515 /* We found an actual hdlr atom */
5516 if(AV_RL32(p->buf + offset ) == MKTAG('h','d','l','r') &&
5517 AV_RL32(p->buf + offset + 8) == MKTAG('m','h','l','r') &&
5518 AV_RL32(p->buf + offset + 12) == MKTAG('M','P','E','G')){
5519 av_log(NULL, AV_LOG_WARNING, "Found media data tag MPEG indicating this is a MOV-packed MPEG-PS.\n");
5520 /* We found a media handler reference atom describing an
5521 * MPEG-PS-in-MOV, return a
5522 * low score to force expanding the probe window until
5523 * mpegps_probe finds what it needs */
5534 // must be done after parsing all trak because there's no order requirement
5535 static void mov_read_chapters(AVFormatContext *s)
5537 MOVContext *mov = s->priv_data;
5539 MOVStreamContext *sc;
5544 for (j = 0; j < mov->nb_chapter_tracks; j++) {
5545 chapter_track = mov->chapter_tracks[j];
5547 for (i = 0; i < s->nb_streams; i++)
5548 if (s->streams[i]->id == chapter_track) {
5553 av_log(s, AV_LOG_ERROR, "Referenced QT chapter track not found\n");
5558 cur_pos = avio_tell(sc->pb);
5560 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
5561 st->disposition |= AV_DISPOSITION_ATTACHED_PIC | AV_DISPOSITION_TIMED_THUMBNAILS;
5562 if (st->nb_index_entries) {
5563 // Retrieve the first frame, if possible
5565 AVIndexEntry *sample = &st->index_entries[0];
5566 if (avio_seek(sc->pb, sample->pos, SEEK_SET) != sample->pos) {
5567 av_log(s, AV_LOG_ERROR, "Failed to retrieve first frame\n");
5571 if (av_get_packet(sc->pb, &pkt, sample->size) < 0)
5574 st->attached_pic = pkt;
5575 st->attached_pic.stream_index = st->index;
5576 st->attached_pic.flags |= AV_PKT_FLAG_KEY;
5579 st->codecpar->codec_type = AVMEDIA_TYPE_DATA;
5580 st->codecpar->codec_id = AV_CODEC_ID_BIN_DATA;
5581 st->discard = AVDISCARD_ALL;
5582 for (i = 0; i < st->nb_index_entries; i++) {
5583 AVIndexEntry *sample = &st->index_entries[i];
5584 int64_t end = i+1 < st->nb_index_entries ? st->index_entries[i+1].timestamp : st->duration;
5589 if (end < sample->timestamp) {
5590 av_log(s, AV_LOG_WARNING, "ignoring stream duration which is shorter than chapters\n");
5591 end = AV_NOPTS_VALUE;
5594 if (avio_seek(sc->pb, sample->pos, SEEK_SET) != sample->pos) {
5595 av_log(s, AV_LOG_ERROR, "Chapter %d not found in file\n", i);
5599 // the first two bytes are the length of the title
5600 len = avio_rb16(sc->pb);
5601 if (len > sample->size-2)
5603 title_len = 2*len + 1;
5604 if (!(title = av_mallocz(title_len)))
5607 // The samples could theoretically be in any encoding if there's an encd
5608 // atom following, but in practice are only utf-8 or utf-16, distinguished
5609 // instead by the presence of a BOM
5613 ch = avio_rb16(sc->pb);
5615 avio_get_str16be(sc->pb, len, title, title_len);
5616 else if (ch == 0xfffe)
5617 avio_get_str16le(sc->pb, len, title, title_len);
5620 if (len == 1 || len == 2)
5623 avio_get_str(sc->pb, INT_MAX, title + 2, len - 1);
5627 avpriv_new_chapter(s, i, st->time_base, sample->timestamp, end, title);
5632 avio_seek(sc->pb, cur_pos, SEEK_SET);
5636 static int parse_timecode_in_framenum_format(AVFormatContext *s, AVStream *st,
5637 uint32_t value, int flags)
5640 char buf[AV_TIMECODE_STR_SIZE];
5641 AVRational rate = st->avg_frame_rate;
5642 int ret = av_timecode_init(&tc, rate, flags, 0, s);
5645 av_dict_set(&st->metadata, "timecode",
5646 av_timecode_make_string(&tc, buf, value), 0);
5650 static int mov_read_rtmd_track(AVFormatContext *s, AVStream *st)
5652 MOVStreamContext *sc = st->priv_data;
5653 char buf[AV_TIMECODE_STR_SIZE];
5654 int64_t cur_pos = avio_tell(sc->pb);
5655 int hh, mm, ss, ff, drop;
5657 if (!st->nb_index_entries)
5660 avio_seek(sc->pb, st->index_entries->pos, SEEK_SET);
5661 avio_skip(s->pb, 13);
5662 hh = avio_r8(s->pb);
5663 mm = avio_r8(s->pb);
5664 ss = avio_r8(s->pb);
5665 drop = avio_r8(s->pb);
5666 ff = avio_r8(s->pb);
5667 snprintf(buf, AV_TIMECODE_STR_SIZE, "%02d:%02d:%02d%c%02d",
5668 hh, mm, ss, drop ? ';' : ':', ff);
5669 av_dict_set(&st->metadata, "timecode", buf, 0);
5671 avio_seek(sc->pb, cur_pos, SEEK_SET);
5675 static int mov_read_timecode_track(AVFormatContext *s, AVStream *st)
5677 MOVStreamContext *sc = st->priv_data;
5679 int64_t cur_pos = avio_tell(sc->pb);
5682 if (!st->nb_index_entries)
5685 avio_seek(sc->pb, st->index_entries->pos, SEEK_SET);
5686 value = avio_rb32(s->pb);
5688 if (sc->tmcd_flags & 0x0001) flags |= AV_TIMECODE_FLAG_DROPFRAME;
5689 if (sc->tmcd_flags & 0x0002) flags |= AV_TIMECODE_FLAG_24HOURSMAX;
5690 if (sc->tmcd_flags & 0x0004) flags |= AV_TIMECODE_FLAG_ALLOWNEGATIVE;
5692 /* Assume Counter flag is set to 1 in tmcd track (even though it is likely
5693 * not the case) and thus assume "frame number format" instead of QT one.
5694 * No sample with tmcd track can be found with a QT timecode at the moment,
5695 * despite what the tmcd track "suggests" (Counter flag set to 0 means QT
5697 parse_timecode_in_framenum_format(s, st, value, flags);
5699 avio_seek(sc->pb, cur_pos, SEEK_SET);
5703 static int mov_read_close(AVFormatContext *s)
5705 MOVContext *mov = s->priv_data;
5708 for (i = 0; i < s->nb_streams; i++) {
5709 AVStream *st = s->streams[i];
5710 MOVStreamContext *sc = st->priv_data;
5715 av_freep(&sc->ctts_data);
5716 for (j = 0; j < sc->drefs_count; j++) {
5717 av_freep(&sc->drefs[j].path);
5718 av_freep(&sc->drefs[j].dir);
5720 av_freep(&sc->drefs);
5722 sc->drefs_count = 0;
5724 if (!sc->pb_is_copied)
5725 ff_format_io_close(s, &sc->pb);
5728 av_freep(&sc->chunk_offsets);
5729 av_freep(&sc->stsc_data);
5730 av_freep(&sc->sample_sizes);
5731 av_freep(&sc->keyframes);
5732 av_freep(&sc->stts_data);
5733 av_freep(&sc->stps_data);
5734 av_freep(&sc->elst_data);
5735 av_freep(&sc->rap_group);
5736 av_freep(&sc->display_matrix);
5737 av_freep(&sc->index_ranges);
5740 for (j = 0; j < sc->stsd_count; j++)
5741 av_free(sc->extradata[j]);
5742 av_freep(&sc->extradata);
5743 av_freep(&sc->extradata_size);
5745 av_freep(&sc->cenc.auxiliary_info);
5746 av_freep(&sc->cenc.auxiliary_info_sizes);
5747 av_aes_ctr_free(sc->cenc.aes_ctr);
5749 av_freep(&sc->stereo3d);
5750 av_freep(&sc->spherical);
5753 if (mov->dv_demux) {
5754 avformat_free_context(mov->dv_fctx);
5755 mov->dv_fctx = NULL;
5758 if (mov->meta_keys) {
5759 for (i = 1; i < mov->meta_keys_count; i++) {
5760 av_freep(&mov->meta_keys[i]);
5762 av_freep(&mov->meta_keys);
5765 av_freep(&mov->trex_data);
5766 av_freep(&mov->bitrates);
5768 for (i = 0; i < mov->fragment_index_count; i++) {
5769 MOVFragmentIndex* index = mov->fragment_index_data[i];
5770 av_freep(&index->items);
5771 av_freep(&mov->fragment_index_data[i]);
5773 av_freep(&mov->fragment_index_data);
5775 av_freep(&mov->aes_decrypt);
5780 static int tmcd_is_referenced(AVFormatContext *s, int tmcd_id)
5784 for (i = 0; i < s->nb_streams; i++) {
5785 AVStream *st = s->streams[i];
5786 MOVStreamContext *sc = st->priv_data;
5788 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO &&
5789 sc->timecode_track == tmcd_id)
5795 /* look for a tmcd track not referenced by any video track, and export it globally */
5796 static void export_orphan_timecode(AVFormatContext *s)
5800 for (i = 0; i < s->nb_streams; i++) {
5801 AVStream *st = s->streams[i];
5803 if (st->codecpar->codec_tag == MKTAG('t','m','c','d') &&
5804 !tmcd_is_referenced(s, i + 1)) {
5805 AVDictionaryEntry *tcr = av_dict_get(st->metadata, "timecode", NULL, 0);
5807 av_dict_set(&s->metadata, "timecode", tcr->value, 0);
5814 static int read_tfra(MOVContext *mov, AVIOContext *f)
5816 MOVFragmentIndex* index = NULL;
5817 int version, fieldlength, i, j;
5818 int64_t pos = avio_tell(f);
5819 uint32_t size = avio_rb32(f);
5822 if (avio_rb32(f) != MKBETAG('t', 'f', 'r', 'a')) {
5825 av_log(mov->fc, AV_LOG_VERBOSE, "found tfra\n");
5826 index = av_mallocz(sizeof(MOVFragmentIndex));
5828 return AVERROR(ENOMEM);
5831 tmp = av_realloc_array(mov->fragment_index_data,
5832 mov->fragment_index_count + 1,
5833 sizeof(MOVFragmentIndex*));
5836 return AVERROR(ENOMEM);
5838 mov->fragment_index_data = tmp;
5839 mov->fragment_index_data[mov->fragment_index_count++] = index;
5841 version = avio_r8(f);
5843 index->track_id = avio_rb32(f);
5844 fieldlength = avio_rb32(f);
5845 index->item_count = avio_rb32(f);
5846 index->items = av_mallocz_array(
5847 index->item_count, sizeof(MOVFragmentIndexItem));
5848 if (!index->items) {
5849 index->item_count = 0;
5850 return AVERROR(ENOMEM);
5852 for (i = 0; i < index->item_count; i++) {
5853 int64_t time, offset;
5855 time = avio_rb64(f);
5856 offset = avio_rb64(f);
5858 time = avio_rb32(f);
5859 offset = avio_rb32(f);
5861 index->items[i].time = time;
5862 index->items[i].moof_offset = offset;
5863 for (j = 0; j < ((fieldlength >> 4) & 3) + 1; j++)
5865 for (j = 0; j < ((fieldlength >> 2) & 3) + 1; j++)
5867 for (j = 0; j < ((fieldlength >> 0) & 3) + 1; j++)
5871 avio_seek(f, pos + size, SEEK_SET);
5875 static int mov_read_mfra(MOVContext *c, AVIOContext *f)
5877 int64_t stream_size = avio_size(f);
5878 int64_t original_pos = avio_tell(f);
5882 if ((seek_ret = avio_seek(f, stream_size - 4, SEEK_SET)) < 0) {
5886 mfra_size = avio_rb32(f);
5887 if (mfra_size < 0 || mfra_size > stream_size) {
5888 av_log(c->fc, AV_LOG_DEBUG, "doesn't look like mfra (unreasonable size)\n");
5891 if ((seek_ret = avio_seek(f, -mfra_size, SEEK_CUR)) < 0) {
5895 if (avio_rb32(f) != mfra_size) {
5896 av_log(c->fc, AV_LOG_DEBUG, "doesn't look like mfra (size mismatch)\n");
5899 if (avio_rb32(f) != MKBETAG('m', 'f', 'r', 'a')) {
5900 av_log(c->fc, AV_LOG_DEBUG, "doesn't look like mfra (tag mismatch)\n");
5903 av_log(c->fc, AV_LOG_VERBOSE, "stream has mfra\n");
5905 ret = read_tfra(c, f);
5911 seek_ret = avio_seek(f, original_pos, SEEK_SET);
5913 av_log(c->fc, AV_LOG_ERROR,
5914 "failed to seek back after looking for mfra\n");
5920 static int mov_read_header(AVFormatContext *s)
5922 MOVContext *mov = s->priv_data;
5923 AVIOContext *pb = s->pb;
5925 MOVAtom atom = { AV_RL32("root") };
5928 if (mov->decryption_key_len != 0 && mov->decryption_key_len != AES_CTR_KEY_SIZE) {
5929 av_log(s, AV_LOG_ERROR, "Invalid decryption key len %d expected %d\n",
5930 mov->decryption_key_len, AES_CTR_KEY_SIZE);
5931 return AVERROR(EINVAL);
5935 mov->trak_index = -1;
5936 /* .mov and .mp4 aren't streamable anyway (only progressive download if moov is before mdat) */
5937 if (pb->seekable & AVIO_SEEKABLE_NORMAL)
5938 atom.size = avio_size(pb);
5940 atom.size = INT64_MAX;
5942 /* check MOV header */
5944 if (mov->moov_retry)
5945 avio_seek(pb, 0, SEEK_SET);
5946 if ((err = mov_read_default(mov, pb, atom)) < 0) {
5947 av_log(s, AV_LOG_ERROR, "error reading header\n");
5951 } while ((pb->seekable & AVIO_SEEKABLE_NORMAL) && !mov->found_moov && !mov->moov_retry++);
5952 if (!mov->found_moov) {
5953 av_log(s, AV_LOG_ERROR, "moov atom not found\n");
5955 return AVERROR_INVALIDDATA;
5957 av_log(mov->fc, AV_LOG_TRACE, "on_parse_exit_offset=%"PRId64"\n", avio_tell(pb));
5959 if (pb->seekable & AVIO_SEEKABLE_NORMAL) {
5960 if (mov->nb_chapter_tracks > 0 && !mov->ignore_chapters)
5961 mov_read_chapters(s);
5962 for (i = 0; i < s->nb_streams; i++)
5963 if (s->streams[i]->codecpar->codec_tag == AV_RL32("tmcd")) {
5964 mov_read_timecode_track(s, s->streams[i]);
5965 } else if (s->streams[i]->codecpar->codec_tag == AV_RL32("rtmd")) {
5966 mov_read_rtmd_track(s, s->streams[i]);
5970 /* copy timecode metadata from tmcd tracks to the related video streams */
5971 for (i = 0; i < s->nb_streams; i++) {
5972 AVStream *st = s->streams[i];
5973 MOVStreamContext *sc = st->priv_data;
5974 if (sc->timecode_track > 0) {
5975 AVDictionaryEntry *tcr;
5976 int tmcd_st_id = -1;
5978 for (j = 0; j < s->nb_streams; j++)
5979 if (s->streams[j]->id == sc->timecode_track)
5982 if (tmcd_st_id < 0 || tmcd_st_id == i)
5984 tcr = av_dict_get(s->streams[tmcd_st_id]->metadata, "timecode", NULL, 0);
5986 av_dict_set(&st->metadata, "timecode", tcr->value, 0);
5989 export_orphan_timecode(s);
5991 for (i = 0; i < s->nb_streams; i++) {
5992 AVStream *st = s->streams[i];
5993 MOVStreamContext *sc = st->priv_data;
5994 fix_timescale(mov, sc);
5995 if(st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO && st->codecpar->codec_id == AV_CODEC_ID_AAC) {
5996 st->skip_samples = sc->start_pad;
5998 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO && sc->nb_frames_for_fps > 0 && sc->duration_for_fps > 0)
5999 av_reduce(&st->avg_frame_rate.num, &st->avg_frame_rate.den,
6000 sc->time_scale*(int64_t)sc->nb_frames_for_fps, sc->duration_for_fps, INT_MAX);
6001 if (st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE) {
6002 if (st->codecpar->width <= 0 || st->codecpar->height <= 0) {
6003 st->codecpar->width = sc->width;
6004 st->codecpar->height = sc->height;
6006 if (st->codecpar->codec_id == AV_CODEC_ID_DVD_SUBTITLE) {
6007 if ((err = mov_rewrite_dvd_sub_extradata(st)) < 0)
6011 if (mov->handbrake_version &&
6012 mov->handbrake_version <= 1000000*0 + 1000*10 + 2 && // 0.10.2
6013 st->codecpar->codec_id == AV_CODEC_ID_MP3
6015 av_log(s, AV_LOG_VERBOSE, "Forcing full parsing for mp3 stream\n");
6016 st->need_parsing = AVSTREAM_PARSE_FULL;
6020 if (mov->trex_data) {
6021 for (i = 0; i < s->nb_streams; i++) {
6022 AVStream *st = s->streams[i];
6023 MOVStreamContext *sc = st->priv_data;
6024 if (st->duration > 0) {
6025 if (sc->data_size > INT64_MAX / sc->time_scale / 8) {
6026 av_log(s, AV_LOG_ERROR, "Overflow during bit rate calculation %"PRId64" * 8 * %d\n",
6027 sc->data_size, sc->time_scale);
6029 return AVERROR_INVALIDDATA;
6031 st->codecpar->bit_rate = sc->data_size * 8 * sc->time_scale / st->duration;
6036 if (mov->use_mfra_for > 0) {
6037 for (i = 0; i < s->nb_streams; i++) {
6038 AVStream *st = s->streams[i];
6039 MOVStreamContext *sc = st->priv_data;
6040 if (sc->duration_for_fps > 0) {
6041 if (sc->data_size > INT64_MAX / sc->time_scale / 8) {
6042 av_log(s, AV_LOG_ERROR, "Overflow during bit rate calculation %"PRId64" * 8 * %d\n",
6043 sc->data_size, sc->time_scale);
6045 return AVERROR_INVALIDDATA;
6047 st->codecpar->bit_rate = sc->data_size * 8 * sc->time_scale /
6048 sc->duration_for_fps;
6053 for (i = 0; i < mov->bitrates_count && i < s->nb_streams; i++) {
6054 if (mov->bitrates[i]) {
6055 s->streams[i]->codecpar->bit_rate = mov->bitrates[i];
6059 ff_rfps_calculate(s);
6061 for (i = 0; i < s->nb_streams; i++) {
6062 AVStream *st = s->streams[i];
6063 MOVStreamContext *sc = st->priv_data;
6065 switch (st->codecpar->codec_type) {
6066 case AVMEDIA_TYPE_AUDIO:
6067 err = ff_replaygain_export(st, s->metadata);
6073 case AVMEDIA_TYPE_VIDEO:
6074 if (sc->display_matrix) {
6075 err = av_stream_add_side_data(st, AV_PKT_DATA_DISPLAYMATRIX, (uint8_t*)sc->display_matrix,
6076 sizeof(int32_t) * 9);
6080 sc->display_matrix = NULL;
6083 err = av_stream_add_side_data(st, AV_PKT_DATA_STEREO3D,
6084 (uint8_t *)sc->stereo3d,
6085 sizeof(*sc->stereo3d));
6089 sc->stereo3d = NULL;
6091 if (sc->spherical) {
6092 err = av_stream_add_side_data(st, AV_PKT_DATA_SPHERICAL,
6093 (uint8_t *)sc->spherical,
6094 sc->spherical_size);
6098 sc->spherical = NULL;
6103 ff_configure_buffers_for_index(s, AV_TIME_BASE);
6108 static AVIndexEntry *mov_find_next_sample(AVFormatContext *s, AVStream **st)
6110 AVIndexEntry *sample = NULL;
6111 int64_t best_dts = INT64_MAX;
6113 for (i = 0; i < s->nb_streams; i++) {
6114 AVStream *avst = s->streams[i];
6115 MOVStreamContext *msc = avst->priv_data;
6116 if (msc->pb && msc->current_sample < avst->nb_index_entries) {
6117 AVIndexEntry *current_sample = &avst->index_entries[msc->current_sample];
6118 int64_t dts = av_rescale(current_sample->timestamp, AV_TIME_BASE, msc->time_scale);
6119 av_log(s, AV_LOG_TRACE, "stream %d, sample %d, dts %"PRId64"\n", i, msc->current_sample, dts);
6120 if (!sample || (!(s->pb->seekable & AVIO_SEEKABLE_NORMAL) && current_sample->pos < sample->pos) ||
6121 ((s->pb->seekable & AVIO_SEEKABLE_NORMAL) &&
6122 ((msc->pb != s->pb && dts < best_dts) || (msc->pb == s->pb &&
6123 ((FFABS(best_dts - dts) <= AV_TIME_BASE && current_sample->pos < sample->pos) ||
6124 (FFABS(best_dts - dts) > AV_TIME_BASE && dts < best_dts)))))) {
6125 sample = current_sample;
6134 static int should_retry(AVIOContext *pb, int error_code) {
6135 if (error_code == AVERROR_EOF || avio_feof(pb))
6141 static int mov_switch_root(AVFormatContext *s, int64_t target)
6143 MOVContext *mov = s->priv_data;
6145 int already_read = 0;
6147 if (avio_seek(s->pb, target, SEEK_SET) != target) {
6148 av_log(mov->fc, AV_LOG_ERROR, "root atom offset 0x%"PRIx64": partial file\n", target);
6149 return AVERROR_INVALIDDATA;
6152 mov->next_root_atom = 0;
6154 for (i = 0; i < mov->fragment_index_count; i++) {
6155 MOVFragmentIndex *index = mov->fragment_index_data[i];
6157 for (j = 0; j < index->item_count; j++) {
6158 MOVFragmentIndexItem *item = &index->items[j];
6160 mov->next_root_atom = item->moof_offset;
6161 break; // Advance to next index in outer loop
6162 } else if (item->moof_offset == target) {
6163 index->current_item = FFMIN(j, index->current_item);
6164 if (item->headers_read)
6166 item->headers_read = 1;
6171 index->current_item = 0;
6177 mov->found_mdat = 0;
6179 if (mov_read_default(mov, s->pb, (MOVAtom){ AV_RL32("root"), INT64_MAX }) < 0 ||
6182 av_log(s, AV_LOG_TRACE, "read fragments, offset 0x%"PRIx64"\n", avio_tell(s->pb));
6187 static int mov_change_extradata(MOVStreamContext *sc, AVPacket *pkt)
6189 uint8_t *side, *extradata;
6192 /* Save the current index. */
6193 sc->last_stsd_index = sc->stsc_data[sc->stsc_index].id - 1;
6195 /* Notify the decoder that extradata changed. */
6196 extradata_size = sc->extradata_size[sc->last_stsd_index];
6197 extradata = sc->extradata[sc->last_stsd_index];
6198 if (extradata_size > 0 && extradata) {
6199 side = av_packet_new_side_data(pkt,
6200 AV_PKT_DATA_NEW_EXTRADATA,
6203 return AVERROR(ENOMEM);
6204 memcpy(side, extradata, extradata_size);
6210 static int mov_read_packet(AVFormatContext *s, AVPacket *pkt)
6212 MOVContext *mov = s->priv_data;
6213 MOVStreamContext *sc;
6214 AVIndexEntry *sample;
6215 AVStream *st = NULL;
6216 int64_t current_index;
6220 sample = mov_find_next_sample(s, &st);
6221 if (!sample || (mov->next_root_atom && sample->pos > mov->next_root_atom)) {
6222 if (!mov->next_root_atom)
6224 if ((ret = mov_switch_root(s, mov->next_root_atom)) < 0)
6229 /* must be done just before reading, to avoid infinite loop on sample */
6230 current_index = sc->current_index;
6231 mov_current_sample_inc(sc);
6233 if (mov->next_root_atom) {
6234 sample->pos = FFMIN(sample->pos, mov->next_root_atom);
6235 sample->size = FFMIN(sample->size, (mov->next_root_atom - sample->pos));
6238 if (st->discard != AVDISCARD_ALL) {
6239 int64_t ret64 = avio_seek(sc->pb, sample->pos, SEEK_SET);
6240 if (ret64 != sample->pos) {
6241 av_log(mov->fc, AV_LOG_ERROR, "stream %d, offset 0x%"PRIx64": partial file\n",
6242 sc->ffindex, sample->pos);
6243 if (should_retry(sc->pb, ret64)) {
6244 mov_current_sample_dec(sc);
6246 return AVERROR_INVALIDDATA;
6249 if( st->discard == AVDISCARD_NONKEY && 0==(sample->flags & AVINDEX_KEYFRAME) ) {
6250 av_log(mov->fc, AV_LOG_DEBUG, "Nonkey frame from stream %d discarded due to AVDISCARD_NONKEY\n", sc->ffindex);
6254 ret = av_get_packet(sc->pb, pkt, sample->size);
6256 if (should_retry(sc->pb, ret)) {
6257 mov_current_sample_dec(sc);
6261 if (sc->has_palette) {
6264 pal = av_packet_new_side_data(pkt, AV_PKT_DATA_PALETTE, AVPALETTE_SIZE);
6266 av_log(mov->fc, AV_LOG_ERROR, "Cannot append palette to packet\n");
6268 memcpy(pal, sc->palette, AVPALETTE_SIZE);
6269 sc->has_palette = 0;
6272 #if CONFIG_DV_DEMUXER
6273 if (mov->dv_demux && sc->dv_audio_container) {
6274 avpriv_dv_produce_packet(mov->dv_demux, pkt, pkt->data, pkt->size, pkt->pos);
6275 av_freep(&pkt->data);
6277 ret = avpriv_dv_get_packet(mov->dv_demux, pkt);
6282 if (st->codecpar->codec_id == AV_CODEC_ID_MP3 && !st->need_parsing && pkt->size > 4) {
6283 if (ff_mpa_check_header(AV_RB32(pkt->data)) < 0)
6284 st->need_parsing = AVSTREAM_PARSE_FULL;
6288 pkt->stream_index = sc->ffindex;
6289 pkt->dts = sample->timestamp;
6290 if (sample->flags & AVINDEX_DISCARD_FRAME) {
6291 pkt->flags |= AV_PKT_FLAG_DISCARD;
6293 if (sc->ctts_data && sc->ctts_index < sc->ctts_count) {
6294 pkt->pts = pkt->dts + sc->dts_shift + sc->ctts_data[sc->ctts_index].duration;
6295 /* update ctts context */
6297 if (sc->ctts_index < sc->ctts_count &&
6298 sc->ctts_data[sc->ctts_index].count == sc->ctts_sample) {
6300 sc->ctts_sample = 0;
6303 int64_t next_dts = (sc->current_sample < st->nb_index_entries) ?
6304 st->index_entries[sc->current_sample].timestamp : st->duration;
6305 pkt->duration = next_dts - pkt->dts;
6306 pkt->pts = pkt->dts;
6308 if (st->discard == AVDISCARD_ALL)
6310 pkt->flags |= sample->flags & AVINDEX_KEYFRAME ? AV_PKT_FLAG_KEY : 0;
6311 pkt->pos = sample->pos;
6313 /* Multiple stsd handling. */
6314 if (sc->stsc_data) {
6315 /* Keep track of the stsc index for the given sample, then check
6316 * if the stsd index is different from the last used one. */
6318 if (mov_stsc_index_valid(sc->stsc_index, sc->stsc_count) &&
6319 mov_get_stsc_samples(sc, sc->stsc_index) == sc->stsc_sample) {
6321 sc->stsc_sample = 0;
6322 /* Do not check indexes after a switch. */
6323 } else if (sc->stsc_data[sc->stsc_index].id > 0 &&
6324 sc->stsc_data[sc->stsc_index].id - 1 < sc->stsd_count &&
6325 sc->stsc_data[sc->stsc_index].id - 1 != sc->last_stsd_index) {
6326 ret = mov_change_extradata(sc, pkt);
6333 aax_filter(pkt->data, pkt->size, mov);
6335 if (sc->cenc.aes_ctr) {
6336 ret = cenc_filter(mov, sc, current_index, pkt->data, pkt->size);
6345 static int mov_seek_fragment(AVFormatContext *s, AVStream *st, int64_t timestamp)
6347 MOVContext *mov = s->priv_data;
6348 MOVStreamContext *sc = st->priv_data;
6351 if (!mov->fragment_index_complete)
6354 for (i = 0; i < mov->fragment_index_count; i++) {
6355 if (mov->fragment_index_data[i]->track_id == st->id || !sc->has_sidx) {
6356 MOVFragmentIndex *index = mov->fragment_index_data[i];
6357 for (j = index->item_count - 1; j >= 0; j--) {
6358 if (index->items[j].time <= timestamp) {
6359 if (index->items[j].headers_read)
6362 return mov_switch_root(s, index->items[j].moof_offset);
6371 static int mov_seek_stream(AVFormatContext *s, AVStream *st, int64_t timestamp, int flags)
6373 MOVStreamContext *sc = st->priv_data;
6374 int sample, time_sample;
6377 int ret = mov_seek_fragment(s, st, timestamp);
6381 sample = av_index_search_timestamp(st, timestamp, flags);
6382 av_log(s, AV_LOG_TRACE, "stream %d, timestamp %"PRId64", sample %d\n", st->index, timestamp, sample);
6383 if (sample < 0 && st->nb_index_entries && timestamp < st->index_entries[0].timestamp)
6385 if (sample < 0) /* not sure what to do */
6386 return AVERROR_INVALIDDATA;
6387 mov_current_sample_set(sc, sample);
6388 av_log(s, AV_LOG_TRACE, "stream %d, found sample %d\n", st->index, sc->current_sample);
6389 /* adjust ctts index */
6390 if (sc->ctts_data) {
6392 for (i = 0; i < sc->ctts_count; i++) {
6393 int next = time_sample + sc->ctts_data[i].count;
6394 if (next > sc->current_sample) {
6396 sc->ctts_sample = sc->current_sample - time_sample;
6403 /* adjust stsd index */
6405 for (i = 0; i < sc->stsc_count; i++) {
6406 int next = time_sample + mov_get_stsc_samples(sc, i);
6407 if (next > sc->current_sample) {
6409 sc->stsc_sample = sc->current_sample - time_sample;
6418 static int mov_read_seek(AVFormatContext *s, int stream_index, int64_t sample_time, int flags)
6420 MOVContext *mc = s->priv_data;
6425 if (stream_index >= s->nb_streams)
6426 return AVERROR_INVALIDDATA;
6428 st = s->streams[stream_index];
6429 sample = mov_seek_stream(s, st, sample_time, flags);
6433 if (mc->seek_individually) {
6434 /* adjust seek timestamp to found sample timestamp */
6435 int64_t seek_timestamp = st->index_entries[sample].timestamp;
6437 for (i = 0; i < s->nb_streams; i++) {
6439 MOVStreamContext *sc = s->streams[i]->priv_data;
6441 st->skip_samples = (sample_time <= 0) ? sc->start_pad : 0;
6443 if (stream_index == i)
6446 timestamp = av_rescale_q(seek_timestamp, s->streams[stream_index]->time_base, st->time_base);
6447 mov_seek_stream(s, st, timestamp, flags);
6450 for (i = 0; i < s->nb_streams; i++) {
6451 MOVStreamContext *sc;
6454 mov_current_sample_set(sc, 0);
6457 MOVStreamContext *sc;
6458 AVIndexEntry *entry = mov_find_next_sample(s, &st);
6460 return AVERROR_INVALIDDATA;
6462 if (sc->ffindex == stream_index && sc->current_sample == sample)
6464 mov_current_sample_inc(sc);
6470 #define OFFSET(x) offsetof(MOVContext, x)
6471 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM
6472 static const AVOption mov_options[] = {
6473 {"use_absolute_path",
6474 "allow using absolute path when opening alias, this is a possible security issue",
6475 OFFSET(use_absolute_path), AV_OPT_TYPE_BOOL, {.i64 = 0},
6477 {"seek_streams_individually",
6478 "Seek each stream individually to the to the closest point",
6479 OFFSET(seek_individually), AV_OPT_TYPE_BOOL, { .i64 = 1 },
6481 {"ignore_editlist", "", OFFSET(ignore_editlist), AV_OPT_TYPE_BOOL, {.i64 = 0},
6483 {"ignore_chapters", "", OFFSET(ignore_chapters), AV_OPT_TYPE_BOOL, {.i64 = 0},
6486 "use mfra for fragment timestamps",
6487 OFFSET(use_mfra_for), AV_OPT_TYPE_INT, {.i64 = FF_MOV_FLAG_MFRA_AUTO},
6488 -1, FF_MOV_FLAG_MFRA_PTS, FLAGS,
6490 {"auto", "auto", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_MFRA_AUTO}, 0, 0,
6491 FLAGS, "use_mfra_for" },
6492 {"dts", "dts", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_MFRA_DTS}, 0, 0,
6493 FLAGS, "use_mfra_for" },
6494 {"pts", "pts", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_MFRA_PTS}, 0, 0,
6495 FLAGS, "use_mfra_for" },
6496 { "export_all", "Export unrecognized metadata entries", OFFSET(export_all),
6497 AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, .flags = FLAGS },
6498 { "export_xmp", "Export full XMP metadata", OFFSET(export_xmp),
6499 AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, .flags = FLAGS },
6500 { "activation_bytes", "Secret bytes for Audible AAX files", OFFSET(activation_bytes),
6501 AV_OPT_TYPE_BINARY, .flags = AV_OPT_FLAG_DECODING_PARAM },
6502 { "audible_fixed_key", // extracted from libAAX_SDK.so and AAXSDKWin.dll files!
6503 "Fixed key used for handling Audible AAX files", OFFSET(audible_fixed_key),
6504 AV_OPT_TYPE_BINARY, {.str="77214d4b196a87cd520045fd20a51d67"},
6505 .flags = AV_OPT_FLAG_DECODING_PARAM },
6506 { "decryption_key", "The media decryption key (hex)", OFFSET(decryption_key), AV_OPT_TYPE_BINARY, .flags = AV_OPT_FLAG_DECODING_PARAM },
6507 { "enable_drefs", "Enable external track support.", OFFSET(enable_drefs), AV_OPT_TYPE_BOOL,
6508 {.i64 = 0}, 0, 1, FLAGS },
6513 static const AVClass mov_class = {
6514 .class_name = "mov,mp4,m4a,3gp,3g2,mj2",
6515 .item_name = av_default_item_name,
6516 .option = mov_options,
6517 .version = LIBAVUTIL_VERSION_INT,
6520 AVInputFormat ff_mov_demuxer = {
6521 .name = "mov,mp4,m4a,3gp,3g2,mj2",
6522 .long_name = NULL_IF_CONFIG_SMALL("QuickTime / MOV"),
6523 .priv_class = &mov_class,
6524 .priv_data_size = sizeof(MOVContext),
6525 .extensions = "mov,mp4,m4a,3gp,3g2,mj2",
6526 .read_probe = mov_probe,
6527 .read_header = mov_read_header,
6528 .read_packet = mov_read_packet,
6529 .read_close = mov_read_close,
6530 .read_seek = mov_read_seek,
6531 .flags = AVFMT_NO_BYTE_SEEK,