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 */
1190 if ((int64_t)(time * 1000000ULL) / 1000000 != time) {
1191 av_log(NULL, AV_LOG_DEBUG, "creation_time is not representable\n");
1195 avpriv_dict_set_timestamp(metadata, "creation_time", time * 1000000);
1199 static int mov_read_mdhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1202 MOVStreamContext *sc;
1204 char language[4] = {0};
1206 int64_t creation_time;
1208 if (c->fc->nb_streams < 1)
1210 st = c->fc->streams[c->fc->nb_streams-1];
1213 if (sc->time_scale) {
1214 av_log(c->fc, AV_LOG_ERROR, "Multiple mdhd?\n");
1215 return AVERROR_INVALIDDATA;
1218 version = avio_r8(pb);
1220 avpriv_request_sample(c->fc, "Version %d", version);
1221 return AVERROR_PATCHWELCOME;
1223 avio_rb24(pb); /* flags */
1225 creation_time = avio_rb64(pb);
1228 creation_time = avio_rb32(pb);
1229 avio_rb32(pb); /* modification time */
1231 mov_metadata_creation_time(&st->metadata, creation_time);
1233 sc->time_scale = avio_rb32(pb);
1234 if (sc->time_scale <= 0) {
1235 av_log(c->fc, AV_LOG_ERROR, "Invalid mdhd time scale %d\n", sc->time_scale);
1236 return AVERROR_INVALIDDATA;
1238 st->duration = (version == 1) ? avio_rb64(pb) : avio_rb32(pb); /* duration */
1240 lang = avio_rb16(pb); /* language */
1241 if (ff_mov_lang_to_iso639(lang, language))
1242 av_dict_set(&st->metadata, "language", language, 0);
1243 avio_rb16(pb); /* quality */
1248 static int mov_read_mvhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1251 int64_t creation_time;
1252 int version = avio_r8(pb); /* version */
1253 avio_rb24(pb); /* flags */
1256 creation_time = avio_rb64(pb);
1259 creation_time = avio_rb32(pb);
1260 avio_rb32(pb); /* modification time */
1262 mov_metadata_creation_time(&c->fc->metadata, creation_time);
1263 c->time_scale = avio_rb32(pb); /* time scale */
1264 if (c->time_scale <= 0) {
1265 av_log(c->fc, AV_LOG_ERROR, "Invalid mvhd time scale %d\n", c->time_scale);
1266 return AVERROR_INVALIDDATA;
1268 av_log(c->fc, AV_LOG_TRACE, "time scale = %i\n", c->time_scale);
1270 c->duration = (version == 1) ? avio_rb64(pb) : avio_rb32(pb); /* duration */
1271 // set the AVCodecContext duration because the duration of individual tracks
1272 // may be inaccurate
1273 if (c->time_scale > 0 && !c->trex_data)
1274 c->fc->duration = av_rescale(c->duration, AV_TIME_BASE, c->time_scale);
1275 avio_rb32(pb); /* preferred scale */
1277 avio_rb16(pb); /* preferred volume */
1279 avio_skip(pb, 10); /* reserved */
1281 /* movie display matrix, store it in main context and use it later on */
1282 for (i = 0; i < 3; i++) {
1283 c->movie_display_matrix[i][0] = avio_rb32(pb); // 16.16 fixed point
1284 c->movie_display_matrix[i][1] = avio_rb32(pb); // 16.16 fixed point
1285 c->movie_display_matrix[i][2] = avio_rb32(pb); // 2.30 fixed point
1288 avio_rb32(pb); /* preview time */
1289 avio_rb32(pb); /* preview duration */
1290 avio_rb32(pb); /* poster time */
1291 avio_rb32(pb); /* selection time */
1292 avio_rb32(pb); /* selection duration */
1293 avio_rb32(pb); /* current time */
1294 avio_rb32(pb); /* next track ID */
1299 static int mov_read_enda(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1304 if (c->fc->nb_streams < 1)
1306 st = c->fc->streams[c->fc->nb_streams-1];
1308 little_endian = avio_rb16(pb) & 0xFF;
1309 av_log(c->fc, AV_LOG_TRACE, "enda %d\n", little_endian);
1310 if (little_endian == 1) {
1311 switch (st->codecpar->codec_id) {
1312 case AV_CODEC_ID_PCM_S24BE:
1313 st->codecpar->codec_id = AV_CODEC_ID_PCM_S24LE;
1315 case AV_CODEC_ID_PCM_S32BE:
1316 st->codecpar->codec_id = AV_CODEC_ID_PCM_S32LE;
1318 case AV_CODEC_ID_PCM_F32BE:
1319 st->codecpar->codec_id = AV_CODEC_ID_PCM_F32LE;
1321 case AV_CODEC_ID_PCM_F64BE:
1322 st->codecpar->codec_id = AV_CODEC_ID_PCM_F64LE;
1331 static int mov_read_colr(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1334 char color_parameter_type[5] = { 0 };
1335 uint16_t color_primaries, color_trc, color_matrix;
1338 if (c->fc->nb_streams < 1)
1340 st = c->fc->streams[c->fc->nb_streams - 1];
1342 ret = ffio_read_size(pb, color_parameter_type, 4);
1345 if (strncmp(color_parameter_type, "nclx", 4) &&
1346 strncmp(color_parameter_type, "nclc", 4)) {
1347 av_log(c->fc, AV_LOG_WARNING, "unsupported color_parameter_type %s\n",
1348 color_parameter_type);
1352 color_primaries = avio_rb16(pb);
1353 color_trc = avio_rb16(pb);
1354 color_matrix = avio_rb16(pb);
1356 av_log(c->fc, AV_LOG_TRACE,
1357 "%s: pri %d trc %d matrix %d",
1358 color_parameter_type, color_primaries, color_trc, color_matrix);
1360 if (!strncmp(color_parameter_type, "nclx", 4)) {
1361 uint8_t color_range = avio_r8(pb) >> 7;
1362 av_log(c->fc, AV_LOG_TRACE, " full %"PRIu8"", color_range);
1364 st->codecpar->color_range = AVCOL_RANGE_JPEG;
1366 st->codecpar->color_range = AVCOL_RANGE_MPEG;
1369 if (!av_color_primaries_name(color_primaries))
1370 color_primaries = AVCOL_PRI_UNSPECIFIED;
1371 if (!av_color_transfer_name(color_trc))
1372 color_trc = AVCOL_TRC_UNSPECIFIED;
1373 if (!av_color_space_name(color_matrix))
1374 color_matrix = AVCOL_SPC_UNSPECIFIED;
1376 st->codecpar->color_primaries = color_primaries;
1377 st->codecpar->color_trc = color_trc;
1378 st->codecpar->color_space = color_matrix;
1379 av_log(c->fc, AV_LOG_TRACE, "\n");
1384 static int mov_read_fiel(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1387 unsigned mov_field_order;
1388 enum AVFieldOrder decoded_field_order = AV_FIELD_UNKNOWN;
1390 if (c->fc->nb_streams < 1) // will happen with jp2 files
1392 st = c->fc->streams[c->fc->nb_streams-1];
1394 return AVERROR_INVALIDDATA;
1395 mov_field_order = avio_rb16(pb);
1396 if ((mov_field_order & 0xFF00) == 0x0100)
1397 decoded_field_order = AV_FIELD_PROGRESSIVE;
1398 else if ((mov_field_order & 0xFF00) == 0x0200) {
1399 switch (mov_field_order & 0xFF) {
1400 case 0x01: decoded_field_order = AV_FIELD_TT;
1402 case 0x06: decoded_field_order = AV_FIELD_BB;
1404 case 0x09: decoded_field_order = AV_FIELD_TB;
1406 case 0x0E: decoded_field_order = AV_FIELD_BT;
1410 if (decoded_field_order == AV_FIELD_UNKNOWN && mov_field_order) {
1411 av_log(NULL, AV_LOG_ERROR, "Unknown MOV field order 0x%04x\n", mov_field_order);
1413 st->codecpar->field_order = decoded_field_order;
1418 static int mov_realloc_extradata(AVCodecParameters *par, MOVAtom atom)
1421 uint64_t size = (uint64_t)par->extradata_size + atom.size + 8 + AV_INPUT_BUFFER_PADDING_SIZE;
1422 if (size > INT_MAX || (uint64_t)atom.size > INT_MAX)
1423 return AVERROR_INVALIDDATA;
1424 if ((err = av_reallocp(&par->extradata, size)) < 0) {
1425 par->extradata_size = 0;
1428 par->extradata_size = size - AV_INPUT_BUFFER_PADDING_SIZE;
1432 /* Read a whole atom into the extradata return the size of the atom read, possibly truncated if != atom.size */
1433 static int64_t mov_read_atom_into_extradata(MOVContext *c, AVIOContext *pb, MOVAtom atom,
1434 AVCodecParameters *par, uint8_t *buf)
1436 int64_t result = atom.size;
1439 AV_WB32(buf , atom.size + 8);
1440 AV_WL32(buf + 4, atom.type);
1441 err = ffio_read_size(pb, buf + 8, atom.size);
1443 par->extradata_size -= atom.size;
1445 } else if (err < atom.size) {
1446 av_log(c->fc, AV_LOG_WARNING, "truncated extradata\n");
1447 par->extradata_size -= atom.size - err;
1450 memset(buf + 8 + err, 0, AV_INPUT_BUFFER_PADDING_SIZE);
1454 /* FIXME modify QDM2/SVQ3/H.264 decoders to take full atom as extradata */
1455 static int mov_read_extradata(MOVContext *c, AVIOContext *pb, MOVAtom atom,
1456 enum AVCodecID codec_id)
1459 uint64_t original_size;
1462 if (c->fc->nb_streams < 1) // will happen with jp2 files
1464 st = c->fc->streams[c->fc->nb_streams-1];
1466 if (st->codecpar->codec_id != codec_id)
1467 return 0; /* unexpected codec_id - don't mess with extradata */
1469 original_size = st->codecpar->extradata_size;
1470 err = mov_realloc_extradata(st->codecpar, atom);
1474 err = mov_read_atom_into_extradata(c, pb, atom, st->codecpar, st->codecpar->extradata + original_size);
1477 return 0; // Note: this is the original behavior to ignore truncation.
1480 /* wrapper functions for reading ALAC/AVS/MJPEG/MJPEG2000 extradata atoms only for those codecs */
1481 static int mov_read_alac(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1483 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_ALAC);
1486 static int mov_read_avss(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1488 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_AVS);
1491 static int mov_read_jp2h(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1493 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_JPEG2000);
1496 static int mov_read_dpxe(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1498 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_R10K);
1501 static int mov_read_avid(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1503 int ret = mov_read_extradata(c, pb, atom, AV_CODEC_ID_AVUI);
1505 ret = mov_read_extradata(c, pb, atom, AV_CODEC_ID_DNXHD);
1509 static int mov_read_targa_y216(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1511 int ret = mov_read_extradata(c, pb, atom, AV_CODEC_ID_TARGA_Y216);
1513 if (!ret && c->fc->nb_streams >= 1) {
1514 AVCodecParameters *par = c->fc->streams[c->fc->nb_streams-1]->codecpar;
1515 if (par->extradata_size >= 40) {
1516 par->height = AV_RB16(&par->extradata[36]);
1517 par->width = AV_RB16(&par->extradata[38]);
1523 static int mov_read_ares(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1525 if (c->fc->nb_streams >= 1) {
1526 AVCodecParameters *par = c->fc->streams[c->fc->nb_streams-1]->codecpar;
1527 if (par->codec_tag == MKTAG('A', 'V', 'i', 'n') &&
1528 par->codec_id == AV_CODEC_ID_H264 &&
1532 cid = avio_rb16(pb);
1533 /* For AVID AVCI50, force width of 1440 to be able to select the correct SPS and PPS */
1534 if (cid == 0xd4d || cid == 0xd4e)
1537 } else if ((par->codec_tag == MKTAG('A', 'V', 'd', '1') ||
1538 par->codec_tag == MKTAG('A', 'V', 'd', 'n')) &&
1542 num = avio_rb32(pb);
1543 den = avio_rb32(pb);
1544 if (num <= 0 || den <= 0)
1546 switch (avio_rb32(pb)) {
1548 if (den >= INT_MAX / 2)
1552 c->fc->streams[c->fc->nb_streams-1]->display_aspect_ratio.num = num;
1553 c->fc->streams[c->fc->nb_streams-1]->display_aspect_ratio.den = den;
1560 return mov_read_avid(c, pb, atom);
1563 static int mov_read_aclr(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1567 uint64_t original_size;
1568 if (c->fc->nb_streams >= 1) {
1569 AVCodecParameters *par = c->fc->streams[c->fc->nb_streams-1]->codecpar;
1570 if (par->codec_id == AV_CODEC_ID_H264)
1572 if (atom.size == 16) {
1573 original_size = par->extradata_size;
1574 ret = mov_realloc_extradata(par, atom);
1576 length = mov_read_atom_into_extradata(c, pb, atom, par, par->extradata + original_size);
1577 if (length == atom.size) {
1578 const uint8_t range_value = par->extradata[original_size + 19];
1579 switch (range_value) {
1581 par->color_range = AVCOL_RANGE_MPEG;
1584 par->color_range = AVCOL_RANGE_JPEG;
1587 av_log(c, AV_LOG_WARNING, "ignored unknown aclr value (%d)\n", range_value);
1590 ff_dlog(c, "color_range: %d\n", par->color_range);
1592 /* For some reason the whole atom was not added to the extradata */
1593 av_log(c, AV_LOG_ERROR, "aclr not decoded - incomplete atom\n");
1596 av_log(c, AV_LOG_ERROR, "aclr not decoded - unable to add atom to extradata\n");
1599 av_log(c, AV_LOG_WARNING, "aclr not decoded - unexpected size %"PRId64"\n", atom.size);
1606 static int mov_read_svq3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1608 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_SVQ3);
1611 static int mov_read_wave(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1616 if (c->fc->nb_streams < 1)
1618 st = c->fc->streams[c->fc->nb_streams-1];
1620 if ((uint64_t)atom.size > (1<<30))
1621 return AVERROR_INVALIDDATA;
1623 if (st->codecpar->codec_id == AV_CODEC_ID_QDM2 ||
1624 st->codecpar->codec_id == AV_CODEC_ID_QDMC ||
1625 st->codecpar->codec_id == AV_CODEC_ID_SPEEX) {
1626 // pass all frma atom to codec, needed at least for QDMC and QDM2
1627 av_freep(&st->codecpar->extradata);
1628 ret = ff_get_extradata(c->fc, st->codecpar, pb, atom.size);
1631 } else if (atom.size > 8) { /* to read frma, esds atoms */
1632 if (st->codecpar->codec_id == AV_CODEC_ID_ALAC && atom.size >= 24) {
1634 ret = ffio_ensure_seekback(pb, 8);
1637 buffer = avio_rb64(pb);
1639 if ( (buffer & 0xFFFFFFFF) == MKBETAG('f','r','m','a')
1640 && buffer >> 32 <= atom.size
1641 && buffer >> 32 >= 8) {
1644 } else if (!st->codecpar->extradata_size) {
1645 #define ALAC_EXTRADATA_SIZE 36
1646 st->codecpar->extradata = av_mallocz(ALAC_EXTRADATA_SIZE + AV_INPUT_BUFFER_PADDING_SIZE);
1647 if (!st->codecpar->extradata)
1648 return AVERROR(ENOMEM);
1649 st->codecpar->extradata_size = ALAC_EXTRADATA_SIZE;
1650 AV_WB32(st->codecpar->extradata , ALAC_EXTRADATA_SIZE);
1651 AV_WB32(st->codecpar->extradata + 4, MKTAG('a','l','a','c'));
1652 AV_WB64(st->codecpar->extradata + 12, buffer);
1653 avio_read(pb, st->codecpar->extradata + 20, 16);
1654 avio_skip(pb, atom.size - 24);
1658 if ((ret = mov_read_default(c, pb, atom)) < 0)
1661 avio_skip(pb, atom.size);
1666 * This function reads atom content and puts data in extradata without tag
1667 * nor size unlike mov_read_extradata.
1669 static int mov_read_glbl(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1674 if (c->fc->nb_streams < 1)
1676 st = c->fc->streams[c->fc->nb_streams-1];
1678 if ((uint64_t)atom.size > (1<<30))
1679 return AVERROR_INVALIDDATA;
1681 if (atom.size >= 10) {
1682 // Broken files created by legacy versions of libavformat will
1683 // wrap a whole fiel atom inside of a glbl atom.
1684 unsigned size = avio_rb32(pb);
1685 unsigned type = avio_rl32(pb);
1686 avio_seek(pb, -8, SEEK_CUR);
1687 if (type == MKTAG('f','i','e','l') && size == atom.size)
1688 return mov_read_default(c, pb, atom);
1690 if (st->codecpar->extradata_size > 1 && st->codecpar->extradata) {
1691 av_log(c, AV_LOG_WARNING, "ignoring multiple glbl\n");
1694 av_freep(&st->codecpar->extradata);
1695 ret = ff_get_extradata(c->fc, st->codecpar, pb, atom.size);
1702 static int mov_read_dvc1(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1705 uint8_t profile_level;
1708 if (c->fc->nb_streams < 1)
1710 st = c->fc->streams[c->fc->nb_streams-1];
1712 if (atom.size >= (1<<28) || atom.size < 7)
1713 return AVERROR_INVALIDDATA;
1715 profile_level = avio_r8(pb);
1716 if ((profile_level & 0xf0) != 0xc0)
1719 avio_seek(pb, 6, SEEK_CUR);
1720 av_freep(&st->codecpar->extradata);
1721 ret = ff_get_extradata(c->fc, st->codecpar, pb, atom.size - 7);
1729 * An strf atom is a BITMAPINFOHEADER struct. This struct is 40 bytes itself,
1730 * but can have extradata appended at the end after the 40 bytes belonging
1733 static int mov_read_strf(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1738 if (c->fc->nb_streams < 1)
1740 if (atom.size <= 40)
1742 st = c->fc->streams[c->fc->nb_streams-1];
1744 if ((uint64_t)atom.size > (1<<30))
1745 return AVERROR_INVALIDDATA;
1748 av_freep(&st->codecpar->extradata);
1749 ret = ff_get_extradata(c->fc, st->codecpar, pb, atom.size - 40);
1756 static int mov_read_stco(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1759 MOVStreamContext *sc;
1760 unsigned int i, entries;
1762 if (c->fc->nb_streams < 1)
1764 st = c->fc->streams[c->fc->nb_streams-1];
1767 avio_r8(pb); /* version */
1768 avio_rb24(pb); /* flags */
1770 entries = avio_rb32(pb);
1775 if (sc->chunk_offsets)
1776 av_log(c->fc, AV_LOG_WARNING, "Duplicated STCO atom\n");
1777 av_free(sc->chunk_offsets);
1778 sc->chunk_count = 0;
1779 sc->chunk_offsets = av_malloc_array(entries, sizeof(*sc->chunk_offsets));
1780 if (!sc->chunk_offsets)
1781 return AVERROR(ENOMEM);
1782 sc->chunk_count = entries;
1784 if (atom.type == MKTAG('s','t','c','o'))
1785 for (i = 0; i < entries && !pb->eof_reached; i++)
1786 sc->chunk_offsets[i] = avio_rb32(pb);
1787 else if (atom.type == MKTAG('c','o','6','4'))
1788 for (i = 0; i < entries && !pb->eof_reached; i++)
1789 sc->chunk_offsets[i] = avio_rb64(pb);
1791 return AVERROR_INVALIDDATA;
1793 sc->chunk_count = i;
1795 if (pb->eof_reached)
1802 * Compute codec id for 'lpcm' tag.
1803 * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
1805 enum AVCodecID ff_mov_get_lpcm_codec_id(int bps, int flags)
1812 return ff_get_pcm_codec_id(bps, flags & 1, flags & 2, flags & 4 ? -1 : 0);
1815 static int mov_codec_id(AVStream *st, uint32_t format)
1817 int id = ff_codec_get_id(ff_codec_movaudio_tags, format);
1820 ((format & 0xFFFF) == 'm' + ('s' << 8) ||
1821 (format & 0xFFFF) == 'T' + ('S' << 8)))
1822 id = ff_codec_get_id(ff_codec_wav_tags, av_bswap32(format) & 0xFFFF);
1824 if (st->codecpar->codec_type != AVMEDIA_TYPE_VIDEO && id > 0) {
1825 st->codecpar->codec_type = AVMEDIA_TYPE_AUDIO;
1826 } else if (st->codecpar->codec_type != AVMEDIA_TYPE_AUDIO &&
1827 /* skip old ASF MPEG-4 tag */
1828 format && format != MKTAG('m','p','4','s')) {
1829 id = ff_codec_get_id(ff_codec_movvideo_tags, format);
1831 id = ff_codec_get_id(ff_codec_bmp_tags, format);
1833 st->codecpar->codec_type = AVMEDIA_TYPE_VIDEO;
1834 else if (st->codecpar->codec_type == AVMEDIA_TYPE_DATA ||
1835 (st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE &&
1836 st->codecpar->codec_id == AV_CODEC_ID_NONE)) {
1837 id = ff_codec_get_id(ff_codec_movsubtitle_tags, format);
1839 st->codecpar->codec_type = AVMEDIA_TYPE_SUBTITLE;
1843 st->codecpar->codec_tag = format;
1848 static void mov_parse_stsd_video(MOVContext *c, AVIOContext *pb,
1849 AVStream *st, MOVStreamContext *sc)
1851 uint8_t codec_name[32] = { 0 };
1855 /* The first 16 bytes of the video sample description are already
1856 * read in ff_mov_read_stsd_entries() */
1857 stsd_start = avio_tell(pb) - 16;
1859 avio_rb16(pb); /* version */
1860 avio_rb16(pb); /* revision level */
1861 avio_rb32(pb); /* vendor */
1862 avio_rb32(pb); /* temporal quality */
1863 avio_rb32(pb); /* spatial quality */
1865 st->codecpar->width = avio_rb16(pb); /* width */
1866 st->codecpar->height = avio_rb16(pb); /* height */
1868 avio_rb32(pb); /* horiz resolution */
1869 avio_rb32(pb); /* vert resolution */
1870 avio_rb32(pb); /* data size, always 0 */
1871 avio_rb16(pb); /* frames per samples */
1873 len = avio_r8(pb); /* codec name, pascal string */
1876 mov_read_mac_string(c, pb, len, codec_name, sizeof(codec_name));
1878 avio_skip(pb, 31 - len);
1881 av_dict_set(&st->metadata, "encoder", codec_name, 0);
1883 /* codec_tag YV12 triggers an UV swap in rawdec.c */
1884 if (!memcmp(codec_name, "Planar Y'CbCr 8-bit 4:2:0", 25)) {
1885 st->codecpar->codec_tag = MKTAG('I', '4', '2', '0');
1886 st->codecpar->width &= ~1;
1887 st->codecpar->height &= ~1;
1889 /* Flash Media Server uses tag H.263 with Sorenson Spark */
1890 if (st->codecpar->codec_tag == MKTAG('H','2','6','3') &&
1891 !memcmp(codec_name, "Sorenson H263", 13))
1892 st->codecpar->codec_id = AV_CODEC_ID_FLV1;
1894 st->codecpar->bits_per_coded_sample = avio_rb16(pb); /* depth */
1896 avio_seek(pb, stsd_start, SEEK_SET);
1898 if (ff_get_qtpalette(st->codecpar->codec_id, pb, sc->palette)) {
1899 st->codecpar->bits_per_coded_sample &= 0x1F;
1900 sc->has_palette = 1;
1904 static void mov_parse_stsd_audio(MOVContext *c, AVIOContext *pb,
1905 AVStream *st, MOVStreamContext *sc)
1907 int bits_per_sample, flags;
1908 uint16_t version = avio_rb16(pb);
1909 AVDictionaryEntry *compatible_brands = av_dict_get(c->fc->metadata, "compatible_brands", NULL, AV_DICT_MATCH_CASE);
1911 avio_rb16(pb); /* revision level */
1912 avio_rb32(pb); /* vendor */
1914 st->codecpar->channels = avio_rb16(pb); /* channel count */
1915 st->codecpar->bits_per_coded_sample = avio_rb16(pb); /* sample size */
1916 av_log(c->fc, AV_LOG_TRACE, "audio channels %d\n", st->codecpar->channels);
1918 sc->audio_cid = avio_rb16(pb);
1919 avio_rb16(pb); /* packet size = 0 */
1921 st->codecpar->sample_rate = ((avio_rb32(pb) >> 16));
1923 // Read QT version 1 fields. In version 0 these do not exist.
1924 av_log(c->fc, AV_LOG_TRACE, "version =%d, isom =%d\n", version, c->isom);
1926 (compatible_brands && strstr(compatible_brands->value, "qt "))) {
1929 sc->samples_per_frame = avio_rb32(pb);
1930 avio_rb32(pb); /* bytes per packet */
1931 sc->bytes_per_frame = avio_rb32(pb);
1932 avio_rb32(pb); /* bytes per sample */
1933 } else if (version == 2) {
1934 avio_rb32(pb); /* sizeof struct only */
1935 st->codecpar->sample_rate = av_int2double(avio_rb64(pb));
1936 st->codecpar->channels = avio_rb32(pb);
1937 avio_rb32(pb); /* always 0x7F000000 */
1938 st->codecpar->bits_per_coded_sample = avio_rb32(pb);
1940 flags = avio_rb32(pb); /* lpcm format specific flag */
1941 sc->bytes_per_frame = avio_rb32(pb);
1942 sc->samples_per_frame = avio_rb32(pb);
1943 if (st->codecpar->codec_tag == MKTAG('l','p','c','m'))
1944 st->codecpar->codec_id =
1945 ff_mov_get_lpcm_codec_id(st->codecpar->bits_per_coded_sample,
1948 if (version == 0 || (version == 1 && sc->audio_cid != -2)) {
1949 /* can't correctly handle variable sized packet as audio unit */
1950 switch (st->codecpar->codec_id) {
1951 case AV_CODEC_ID_MP2:
1952 case AV_CODEC_ID_MP3:
1953 st->need_parsing = AVSTREAM_PARSE_FULL;
1959 if (sc->format == 0) {
1960 if (st->codecpar->bits_per_coded_sample == 8)
1961 st->codecpar->codec_id = mov_codec_id(st, MKTAG('r','a','w',' '));
1962 else if (st->codecpar->bits_per_coded_sample == 16)
1963 st->codecpar->codec_id = mov_codec_id(st, MKTAG('t','w','o','s'));
1966 switch (st->codecpar->codec_id) {
1967 case AV_CODEC_ID_PCM_S8:
1968 case AV_CODEC_ID_PCM_U8:
1969 if (st->codecpar->bits_per_coded_sample == 16)
1970 st->codecpar->codec_id = AV_CODEC_ID_PCM_S16BE;
1972 case AV_CODEC_ID_PCM_S16LE:
1973 case AV_CODEC_ID_PCM_S16BE:
1974 if (st->codecpar->bits_per_coded_sample == 8)
1975 st->codecpar->codec_id = AV_CODEC_ID_PCM_S8;
1976 else if (st->codecpar->bits_per_coded_sample == 24)
1977 st->codecpar->codec_id =
1978 st->codecpar->codec_id == AV_CODEC_ID_PCM_S16BE ?
1979 AV_CODEC_ID_PCM_S24BE : AV_CODEC_ID_PCM_S24LE;
1980 else if (st->codecpar->bits_per_coded_sample == 32)
1981 st->codecpar->codec_id =
1982 st->codecpar->codec_id == AV_CODEC_ID_PCM_S16BE ?
1983 AV_CODEC_ID_PCM_S32BE : AV_CODEC_ID_PCM_S32LE;
1985 /* set values for old format before stsd version 1 appeared */
1986 case AV_CODEC_ID_MACE3:
1987 sc->samples_per_frame = 6;
1988 sc->bytes_per_frame = 2 * st->codecpar->channels;
1990 case AV_CODEC_ID_MACE6:
1991 sc->samples_per_frame = 6;
1992 sc->bytes_per_frame = 1 * st->codecpar->channels;
1994 case AV_CODEC_ID_ADPCM_IMA_QT:
1995 sc->samples_per_frame = 64;
1996 sc->bytes_per_frame = 34 * st->codecpar->channels;
1998 case AV_CODEC_ID_GSM:
1999 sc->samples_per_frame = 160;
2000 sc->bytes_per_frame = 33;
2006 bits_per_sample = av_get_bits_per_sample(st->codecpar->codec_id);
2007 if (bits_per_sample) {
2008 st->codecpar->bits_per_coded_sample = bits_per_sample;
2009 sc->sample_size = (bits_per_sample >> 3) * st->codecpar->channels;
2013 static void mov_parse_stsd_subtitle(MOVContext *c, AVIOContext *pb,
2014 AVStream *st, MOVStreamContext *sc,
2017 // ttxt stsd contains display flags, justification, background
2018 // color, fonts, and default styles, so fake an atom to read it
2019 MOVAtom fake_atom = { .size = size };
2020 // mp4s contains a regular esds atom
2021 if (st->codecpar->codec_tag != AV_RL32("mp4s"))
2022 mov_read_glbl(c, pb, fake_atom);
2023 st->codecpar->width = sc->width;
2024 st->codecpar->height = sc->height;
2027 static uint32_t yuv_to_rgba(uint32_t ycbcr)
2032 y = (ycbcr >> 16) & 0xFF;
2033 cr = (ycbcr >> 8) & 0xFF;
2036 b = av_clip_uint8((1164 * (y - 16) + 2018 * (cb - 128)) / 1000);
2037 g = av_clip_uint8((1164 * (y - 16) - 813 * (cr - 128) - 391 * (cb - 128)) / 1000);
2038 r = av_clip_uint8((1164 * (y - 16) + 1596 * (cr - 128) ) / 1000);
2040 return (r << 16) | (g << 8) | b;
2043 static int mov_rewrite_dvd_sub_extradata(AVStream *st)
2045 char buf[256] = {0};
2046 uint8_t *src = st->codecpar->extradata;
2049 if (st->codecpar->extradata_size != 64)
2052 if (st->codecpar->width > 0 && st->codecpar->height > 0)
2053 snprintf(buf, sizeof(buf), "size: %dx%d\n",
2054 st->codecpar->width, st->codecpar->height);
2055 av_strlcat(buf, "palette: ", sizeof(buf));
2057 for (i = 0; i < 16; i++) {
2058 uint32_t yuv = AV_RB32(src + i * 4);
2059 uint32_t rgba = yuv_to_rgba(yuv);
2061 av_strlcatf(buf, sizeof(buf), "%06"PRIx32"%s", rgba, i != 15 ? ", " : "");
2064 if (av_strlcat(buf, "\n", sizeof(buf)) >= sizeof(buf))
2067 av_freep(&st->codecpar->extradata);
2068 st->codecpar->extradata_size = 0;
2069 st->codecpar->extradata = av_mallocz(strlen(buf) + AV_INPUT_BUFFER_PADDING_SIZE);
2070 if (!st->codecpar->extradata)
2071 return AVERROR(ENOMEM);
2072 st->codecpar->extradata_size = strlen(buf);
2073 memcpy(st->codecpar->extradata, buf, st->codecpar->extradata_size);
2078 static int mov_parse_stsd_data(MOVContext *c, AVIOContext *pb,
2079 AVStream *st, MOVStreamContext *sc,
2084 if (st->codecpar->codec_tag == MKTAG('t','m','c','d')) {
2085 if ((int)size != size)
2086 return AVERROR(ENOMEM);
2088 ret = ff_get_extradata(c->fc, st->codecpar, pb, size);
2092 MOVStreamContext *tmcd_ctx = st->priv_data;
2094 val = AV_RB32(st->codecpar->extradata + 4);
2095 tmcd_ctx->tmcd_flags = val;
2096 st->avg_frame_rate.num = st->codecpar->extradata[16]; /* number of frame */
2097 st->avg_frame_rate.den = 1;
2098 #if FF_API_LAVF_AVCTX
2099 FF_DISABLE_DEPRECATION_WARNINGS
2100 st->codec->time_base = av_inv_q(st->avg_frame_rate);
2101 FF_ENABLE_DEPRECATION_WARNINGS
2103 /* adjust for per frame dur in counter mode */
2104 if (tmcd_ctx->tmcd_flags & 0x0008) {
2105 int timescale = AV_RB32(st->codecpar->extradata + 8);
2106 int framedur = AV_RB32(st->codecpar->extradata + 12);
2107 st->avg_frame_rate.num *= timescale;
2108 st->avg_frame_rate.den *= framedur;
2109 #if FF_API_LAVF_AVCTX
2110 FF_DISABLE_DEPRECATION_WARNINGS
2111 st->codec->time_base.den *= timescale;
2112 st->codec->time_base.num *= framedur;
2113 FF_ENABLE_DEPRECATION_WARNINGS
2117 uint32_t len = AV_RB32(st->codecpar->extradata + 18); /* name atom length */
2118 uint32_t format = AV_RB32(st->codecpar->extradata + 22);
2119 if (format == AV_RB32("name") && (int64_t)size >= (int64_t)len + 18) {
2120 uint16_t str_size = AV_RB16(st->codecpar->extradata + 26); /* string length */
2121 if (str_size > 0 && size >= (int)str_size + 26) {
2122 char *reel_name = av_malloc(str_size + 1);
2124 return AVERROR(ENOMEM);
2125 memcpy(reel_name, st->codecpar->extradata + 30, str_size);
2126 reel_name[str_size] = 0; /* Add null terminator */
2127 /* don't add reel_name if emtpy string */
2128 if (*reel_name == 0) {
2131 av_dict_set(&st->metadata, "reel_name", reel_name, AV_DICT_DONT_STRDUP_VAL);
2138 /* other codec type, just skip (rtp, mp4s ...) */
2139 avio_skip(pb, size);
2144 static int mov_finalize_stsd_codec(MOVContext *c, AVIOContext *pb,
2145 AVStream *st, MOVStreamContext *sc)
2147 if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO &&
2148 !st->codecpar->sample_rate && sc->time_scale > 1)
2149 st->codecpar->sample_rate = sc->time_scale;
2151 /* special codec parameters handling */
2152 switch (st->codecpar->codec_id) {
2153 #if CONFIG_DV_DEMUXER
2154 case AV_CODEC_ID_DVAUDIO:
2155 c->dv_fctx = avformat_alloc_context();
2157 av_log(c->fc, AV_LOG_ERROR, "dv demux context alloc error\n");
2158 return AVERROR(ENOMEM);
2160 c->dv_demux = avpriv_dv_init_demux(c->dv_fctx);
2162 av_log(c->fc, AV_LOG_ERROR, "dv demux context init error\n");
2163 return AVERROR(ENOMEM);
2165 sc->dv_audio_container = 1;
2166 st->codecpar->codec_id = AV_CODEC_ID_PCM_S16LE;
2169 /* no ifdef since parameters are always those */
2170 case AV_CODEC_ID_QCELP:
2171 st->codecpar->channels = 1;
2172 // force sample rate for qcelp when not stored in mov
2173 if (st->codecpar->codec_tag != MKTAG('Q','c','l','p'))
2174 st->codecpar->sample_rate = 8000;
2175 // FIXME: Why is the following needed for some files?
2176 sc->samples_per_frame = 160;
2177 if (!sc->bytes_per_frame)
2178 sc->bytes_per_frame = 35;
2180 case AV_CODEC_ID_AMR_NB:
2181 st->codecpar->channels = 1;
2182 /* force sample rate for amr, stsd in 3gp does not store sample rate */
2183 st->codecpar->sample_rate = 8000;
2185 case AV_CODEC_ID_AMR_WB:
2186 st->codecpar->channels = 1;
2187 st->codecpar->sample_rate = 16000;
2189 case AV_CODEC_ID_MP2:
2190 case AV_CODEC_ID_MP3:
2191 /* force type after stsd for m1a hdlr */
2192 st->codecpar->codec_type = AVMEDIA_TYPE_AUDIO;
2194 case AV_CODEC_ID_GSM:
2195 case AV_CODEC_ID_ADPCM_MS:
2196 case AV_CODEC_ID_ADPCM_IMA_WAV:
2197 case AV_CODEC_ID_ILBC:
2198 case AV_CODEC_ID_MACE3:
2199 case AV_CODEC_ID_MACE6:
2200 case AV_CODEC_ID_QDM2:
2201 st->codecpar->block_align = sc->bytes_per_frame;
2203 case AV_CODEC_ID_ALAC:
2204 if (st->codecpar->extradata_size == 36) {
2205 st->codecpar->channels = AV_RB8 (st->codecpar->extradata + 21);
2206 st->codecpar->sample_rate = AV_RB32(st->codecpar->extradata + 32);
2209 case AV_CODEC_ID_AC3:
2210 case AV_CODEC_ID_EAC3:
2211 case AV_CODEC_ID_MPEG1VIDEO:
2212 case AV_CODEC_ID_VC1:
2213 case AV_CODEC_ID_VP9:
2214 st->need_parsing = AVSTREAM_PARSE_FULL;
2222 static int mov_skip_multiple_stsd(MOVContext *c, AVIOContext *pb,
2223 int codec_tag, int format,
2226 int video_codec_id = ff_codec_get_id(ff_codec_movvideo_tags, format);
2229 (codec_tag != format &&
2230 // AVID 1:1 samples with differing data format and codec tag exist
2231 (codec_tag != AV_RL32("AV1x") || format != AV_RL32("AVup")) &&
2232 // prores is allowed to have differing data format and codec tag
2233 codec_tag != AV_RL32("apcn") && codec_tag != AV_RL32("apch") &&
2235 codec_tag != AV_RL32("dvpp") && codec_tag != AV_RL32("dvcp") &&
2236 (c->fc->video_codec_id ? video_codec_id != c->fc->video_codec_id
2237 : codec_tag != MKTAG('j','p','e','g')))) {
2238 /* Multiple fourcc, we skip JPEG. This is not correct, we should
2239 * export it as a separate AVStream but this needs a few changes
2240 * in the MOV demuxer, patch welcome. */
2242 av_log(c->fc, AV_LOG_WARNING, "multiple fourcc not supported\n");
2243 avio_skip(pb, size);
2250 int ff_mov_read_stsd_entries(MOVContext *c, AVIOContext *pb, int entries)
2253 MOVStreamContext *sc;
2254 int pseudo_stream_id;
2256 if (c->fc->nb_streams < 1)
2258 st = c->fc->streams[c->fc->nb_streams-1];
2261 for (pseudo_stream_id = 0;
2262 pseudo_stream_id < entries && !pb->eof_reached;
2263 pseudo_stream_id++) {
2264 //Parsing Sample description table
2266 int ret, dref_id = 1;
2267 MOVAtom a = { AV_RL32("stsd") };
2268 int64_t start_pos = avio_tell(pb);
2269 int64_t size = avio_rb32(pb); /* size */
2270 uint32_t format = avio_rl32(pb); /* data format */
2273 avio_rb32(pb); /* reserved */
2274 avio_rb16(pb); /* reserved */
2275 dref_id = avio_rb16(pb);
2276 } else if (size <= 7) {
2277 av_log(c->fc, AV_LOG_ERROR,
2278 "invalid size %"PRId64" in stsd\n", size);
2279 return AVERROR_INVALIDDATA;
2282 if (mov_skip_multiple_stsd(c, pb, st->codecpar->codec_tag, format,
2283 size - (avio_tell(pb) - start_pos)))
2286 sc->pseudo_stream_id = st->codecpar->codec_tag ? -1 : pseudo_stream_id;
2287 sc->dref_id= dref_id;
2288 sc->format = format;
2290 id = mov_codec_id(st, format);
2292 av_log(c->fc, AV_LOG_TRACE,
2293 "size=%"PRId64" 4CC=%s codec_type=%d\n", size,
2294 av_fourcc2str(format), st->codecpar->codec_type);
2296 if (st->codecpar->codec_type==AVMEDIA_TYPE_VIDEO) {
2297 st->codecpar->codec_id = id;
2298 mov_parse_stsd_video(c, pb, st, sc);
2299 } else if (st->codecpar->codec_type==AVMEDIA_TYPE_AUDIO) {
2300 st->codecpar->codec_id = id;
2301 mov_parse_stsd_audio(c, pb, st, sc);
2302 if (st->codecpar->sample_rate < 0) {
2303 av_log(c->fc, AV_LOG_ERROR, "Invalid sample rate %d\n", st->codecpar->sample_rate);
2304 return AVERROR_INVALIDDATA;
2306 } else if (st->codecpar->codec_type==AVMEDIA_TYPE_SUBTITLE){
2307 st->codecpar->codec_id = id;
2308 mov_parse_stsd_subtitle(c, pb, st, sc,
2309 size - (avio_tell(pb) - start_pos));
2311 ret = mov_parse_stsd_data(c, pb, st, sc,
2312 size - (avio_tell(pb) - start_pos));
2316 /* this will read extra atoms at the end (wave, alac, damr, avcC, hvcC, SMI ...) */
2317 a.size = size - (avio_tell(pb) - start_pos);
2319 if ((ret = mov_read_default(c, pb, a)) < 0)
2321 } else if (a.size > 0)
2322 avio_skip(pb, a.size);
2324 if (sc->extradata) {
2325 int extra_size = st->codecpar->extradata_size;
2327 /* Move the current stream extradata to the stream context one. */
2328 sc->extradata_size[pseudo_stream_id] = extra_size;
2329 sc->extradata[pseudo_stream_id] = av_malloc(extra_size + AV_INPUT_BUFFER_PADDING_SIZE);
2330 if (!sc->extradata[pseudo_stream_id])
2331 return AVERROR(ENOMEM);
2332 memcpy(sc->extradata[pseudo_stream_id], st->codecpar->extradata, extra_size);
2333 av_freep(&st->codecpar->extradata);
2334 st->codecpar->extradata_size = 0;
2338 if (pb->eof_reached)
2344 static int mov_read_stsd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2347 MOVStreamContext *sc;
2350 if (c->fc->nb_streams < 1)
2352 st = c->fc->streams[c->fc->nb_streams - 1];
2355 avio_r8(pb); /* version */
2356 avio_rb24(pb); /* flags */
2357 entries = avio_rb32(pb);
2360 av_log(c->fc, AV_LOG_ERROR, "invalid STSD entries %d\n", entries);
2361 return AVERROR_INVALIDDATA;
2364 if (sc->extradata) {
2365 av_log(c->fc, AV_LOG_ERROR, "Duplicate STSD\n");
2366 return AVERROR_INVALIDDATA;
2368 /* Prepare space for hosting multiple extradata. */
2369 sc->extradata = av_mallocz_array(entries, sizeof(*sc->extradata));
2370 sc->extradata_size = av_mallocz_array(entries, sizeof(*sc->extradata_size));
2371 if (!sc->extradata_size || !sc->extradata) {
2372 ret = AVERROR(ENOMEM);
2376 ret = ff_mov_read_stsd_entries(c, pb, entries);
2380 sc->stsd_count = entries;
2382 /* Restore back the primary extradata. */
2383 av_freep(&st->codecpar->extradata);
2384 st->codecpar->extradata_size = sc->extradata_size[0];
2385 if (sc->extradata_size[0]) {
2386 st->codecpar->extradata = av_mallocz(sc->extradata_size[0] + AV_INPUT_BUFFER_PADDING_SIZE);
2387 if (!st->codecpar->extradata)
2388 return AVERROR(ENOMEM);
2389 memcpy(st->codecpar->extradata, sc->extradata[0], sc->extradata_size[0]);
2392 return mov_finalize_stsd_codec(c, pb, st, sc);
2394 av_freep(&sc->extradata);
2395 av_freep(&sc->extradata_size);
2399 static int mov_read_stsc(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2402 MOVStreamContext *sc;
2403 unsigned int i, entries;
2405 if (c->fc->nb_streams < 1)
2407 st = c->fc->streams[c->fc->nb_streams-1];
2410 avio_r8(pb); /* version */
2411 avio_rb24(pb); /* flags */
2413 entries = avio_rb32(pb);
2415 av_log(c->fc, AV_LOG_TRACE, "track[%u].stsc.entries = %u\n", c->fc->nb_streams - 1, entries);
2420 av_log(c->fc, AV_LOG_WARNING, "Duplicated STSC atom\n");
2421 av_free(sc->stsc_data);
2423 sc->stsc_data = av_malloc_array(entries, sizeof(*sc->stsc_data));
2425 return AVERROR(ENOMEM);
2427 for (i = 0; i < entries && !pb->eof_reached; i++) {
2428 sc->stsc_data[i].first = avio_rb32(pb);
2429 sc->stsc_data[i].count = avio_rb32(pb);
2430 sc->stsc_data[i].id = avio_rb32(pb);
2435 if (pb->eof_reached)
2441 #define mov_stsc_index_valid(index, count) ((index) < (count) - 1)
2443 /* Compute the samples value for the stsc entry at the given index. */
2444 static inline int mov_get_stsc_samples(MOVStreamContext *sc, int index)
2448 if (mov_stsc_index_valid(index, sc->stsc_count))
2449 chunk_count = sc->stsc_data[index + 1].first - sc->stsc_data[index].first;
2451 chunk_count = sc->chunk_count - (sc->stsc_data[index].first - 1);
2453 return sc->stsc_data[index].count * chunk_count;
2456 static int mov_read_stps(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2459 MOVStreamContext *sc;
2460 unsigned i, entries;
2462 if (c->fc->nb_streams < 1)
2464 st = c->fc->streams[c->fc->nb_streams-1];
2467 avio_rb32(pb); // version + flags
2469 entries = avio_rb32(pb);
2471 av_log(c->fc, AV_LOG_WARNING, "Duplicated STPS atom\n");
2472 av_free(sc->stps_data);
2474 sc->stps_data = av_malloc_array(entries, sizeof(*sc->stps_data));
2476 return AVERROR(ENOMEM);
2478 for (i = 0; i < entries && !pb->eof_reached; i++) {
2479 sc->stps_data[i] = avio_rb32(pb);
2484 if (pb->eof_reached)
2490 static int mov_read_stss(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2493 MOVStreamContext *sc;
2494 unsigned int i, entries;
2496 if (c->fc->nb_streams < 1)
2498 st = c->fc->streams[c->fc->nb_streams-1];
2501 avio_r8(pb); /* version */
2502 avio_rb24(pb); /* flags */
2504 entries = avio_rb32(pb);
2506 av_log(c->fc, AV_LOG_TRACE, "keyframe_count = %u\n", entries);
2510 sc->keyframe_absent = 1;
2511 if (!st->need_parsing && st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)
2512 st->need_parsing = AVSTREAM_PARSE_HEADERS;
2516 av_log(c->fc, AV_LOG_WARNING, "Duplicated STSS atom\n");
2517 if (entries >= UINT_MAX / sizeof(int))
2518 return AVERROR_INVALIDDATA;
2519 av_freep(&sc->keyframes);
2520 sc->keyframe_count = 0;
2521 sc->keyframes = av_malloc_array(entries, sizeof(*sc->keyframes));
2523 return AVERROR(ENOMEM);
2525 for (i = 0; i < entries && !pb->eof_reached; i++) {
2526 sc->keyframes[i] = avio_rb32(pb);
2529 sc->keyframe_count = i;
2531 if (pb->eof_reached)
2537 static int mov_read_stsz(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2540 MOVStreamContext *sc;
2541 unsigned int i, entries, sample_size, field_size, num_bytes;
2546 if (c->fc->nb_streams < 1)
2548 st = c->fc->streams[c->fc->nb_streams-1];
2551 avio_r8(pb); /* version */
2552 avio_rb24(pb); /* flags */
2554 if (atom.type == MKTAG('s','t','s','z')) {
2555 sample_size = avio_rb32(pb);
2556 if (!sc->sample_size) /* do not overwrite value computed in stsd */
2557 sc->sample_size = sample_size;
2558 sc->stsz_sample_size = sample_size;
2562 avio_rb24(pb); /* reserved */
2563 field_size = avio_r8(pb);
2565 entries = avio_rb32(pb);
2567 av_log(c->fc, AV_LOG_TRACE, "sample_size = %u sample_count = %u\n", sc->sample_size, entries);
2569 sc->sample_count = entries;
2573 if (field_size != 4 && field_size != 8 && field_size != 16 && field_size != 32) {
2574 av_log(c->fc, AV_LOG_ERROR, "Invalid sample field size %u\n", field_size);
2575 return AVERROR_INVALIDDATA;
2580 if (entries >= (UINT_MAX - 4) / field_size)
2581 return AVERROR_INVALIDDATA;
2582 if (sc->sample_sizes)
2583 av_log(c->fc, AV_LOG_WARNING, "Duplicated STSZ atom\n");
2584 av_free(sc->sample_sizes);
2585 sc->sample_count = 0;
2586 sc->sample_sizes = av_malloc_array(entries, sizeof(*sc->sample_sizes));
2587 if (!sc->sample_sizes)
2588 return AVERROR(ENOMEM);
2590 num_bytes = (entries*field_size+4)>>3;
2592 buf = av_malloc(num_bytes+AV_INPUT_BUFFER_PADDING_SIZE);
2594 av_freep(&sc->sample_sizes);
2595 return AVERROR(ENOMEM);
2598 ret = ffio_read_size(pb, buf, num_bytes);
2600 av_freep(&sc->sample_sizes);
2605 init_get_bits(&gb, buf, 8*num_bytes);
2607 for (i = 0; i < entries && !pb->eof_reached; i++) {
2608 sc->sample_sizes[i] = get_bits_long(&gb, field_size);
2609 sc->data_size += sc->sample_sizes[i];
2612 sc->sample_count = i;
2616 if (pb->eof_reached)
2622 static int mov_read_stts(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2625 MOVStreamContext *sc;
2626 unsigned int i, entries;
2628 int64_t total_sample_count=0;
2630 if (c->fc->nb_streams < 1)
2632 st = c->fc->streams[c->fc->nb_streams-1];
2635 avio_r8(pb); /* version */
2636 avio_rb24(pb); /* flags */
2637 entries = avio_rb32(pb);
2639 av_log(c->fc, AV_LOG_TRACE, "track[%u].stts.entries = %u\n",
2640 c->fc->nb_streams-1, entries);
2643 av_log(c->fc, AV_LOG_WARNING, "Duplicated STTS atom\n");
2644 av_free(sc->stts_data);
2646 sc->stts_data = av_malloc_array(entries, sizeof(*sc->stts_data));
2648 return AVERROR(ENOMEM);
2650 for (i = 0; i < entries && !pb->eof_reached; i++) {
2651 int sample_duration;
2654 sample_count=avio_rb32(pb);
2655 sample_duration = avio_rb32(pb);
2657 if (sample_count < 0) {
2658 av_log(c->fc, AV_LOG_ERROR, "Invalid sample_count=%d\n", sample_count);
2659 return AVERROR_INVALIDDATA;
2661 sc->stts_data[i].count= sample_count;
2662 sc->stts_data[i].duration= sample_duration;
2664 av_log(c->fc, AV_LOG_TRACE, "sample_count=%d, sample_duration=%d\n",
2665 sample_count, sample_duration);
2669 && sample_count == 1
2670 && total_sample_count > 100
2671 && sample_duration/10 > duration / total_sample_count)
2672 sample_duration = duration / total_sample_count;
2673 duration+=(int64_t)sample_duration*sample_count;
2674 total_sample_count+=sample_count;
2679 sc->duration_for_fps += duration;
2680 sc->nb_frames_for_fps += total_sample_count;
2682 if (pb->eof_reached)
2685 st->nb_frames= total_sample_count;
2687 st->duration= duration;
2688 sc->track_end = duration;
2692 static void mov_update_dts_shift(MOVStreamContext *sc, int duration)
2695 if (duration == INT_MIN) {
2696 av_log(NULL, AV_LOG_WARNING, "mov_update_dts_shift(): dts_shift set to %d\n", INT_MAX);
2699 sc->dts_shift = FFMAX(sc->dts_shift, -duration);
2703 static int mov_read_ctts(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2706 MOVStreamContext *sc;
2707 unsigned int i, entries, ctts_count = 0;
2709 if (c->fc->nb_streams < 1)
2711 st = c->fc->streams[c->fc->nb_streams-1];
2714 avio_r8(pb); /* version */
2715 avio_rb24(pb); /* flags */
2716 entries = avio_rb32(pb);
2718 av_log(c->fc, AV_LOG_TRACE, "track[%u].ctts.entries = %u\n", c->fc->nb_streams - 1, entries);
2722 if (entries >= UINT_MAX / sizeof(*sc->ctts_data))
2723 return AVERROR_INVALIDDATA;
2724 av_freep(&sc->ctts_data);
2725 sc->ctts_data = av_realloc(NULL, entries * sizeof(*sc->ctts_data));
2727 return AVERROR(ENOMEM);
2729 for (i = 0; i < entries && !pb->eof_reached; i++) {
2730 int count =avio_rb32(pb);
2731 int duration =avio_rb32(pb);
2734 av_log(c->fc, AV_LOG_TRACE,
2735 "ignoring CTTS entry with count=%d duration=%d\n",
2740 sc->ctts_data[ctts_count].count = count;
2741 sc->ctts_data[ctts_count].duration = duration;
2744 av_log(c->fc, AV_LOG_TRACE, "count=%d, duration=%d\n",
2747 if (FFNABS(duration) < -(1<<28) && i+2<entries) {
2748 av_log(c->fc, AV_LOG_WARNING, "CTTS invalid\n");
2749 av_freep(&sc->ctts_data);
2755 mov_update_dts_shift(sc, duration);
2758 sc->ctts_count = ctts_count;
2760 if (pb->eof_reached)
2763 av_log(c->fc, AV_LOG_TRACE, "dts shift %d\n", sc->dts_shift);
2768 static int mov_read_sbgp(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2771 MOVStreamContext *sc;
2772 unsigned int i, entries;
2774 uint32_t grouping_type;
2776 if (c->fc->nb_streams < 1)
2778 st = c->fc->streams[c->fc->nb_streams-1];
2781 version = avio_r8(pb); /* version */
2782 avio_rb24(pb); /* flags */
2783 grouping_type = avio_rl32(pb);
2784 if (grouping_type != MKTAG( 'r','a','p',' '))
2785 return 0; /* only support 'rap ' grouping */
2787 avio_rb32(pb); /* grouping_type_parameter */
2789 entries = avio_rb32(pb);
2793 av_log(c->fc, AV_LOG_WARNING, "Duplicated SBGP atom\n");
2794 av_free(sc->rap_group);
2795 sc->rap_group_count = 0;
2796 sc->rap_group = av_malloc_array(entries, sizeof(*sc->rap_group));
2798 return AVERROR(ENOMEM);
2800 for (i = 0; i < entries && !pb->eof_reached; i++) {
2801 sc->rap_group[i].count = avio_rb32(pb); /* sample_count */
2802 sc->rap_group[i].index = avio_rb32(pb); /* group_description_index */
2805 sc->rap_group_count = i;
2807 return pb->eof_reached ? AVERROR_EOF : 0;
2811 * Get ith edit list entry (media time, duration).
2813 static int get_edit_list_entry(MOVContext *mov,
2814 const MOVStreamContext *msc,
2815 unsigned int edit_list_index,
2816 int64_t *edit_list_media_time,
2817 int64_t *edit_list_duration,
2818 int64_t global_timescale)
2820 if (edit_list_index == msc->elst_count) {
2823 *edit_list_media_time = msc->elst_data[edit_list_index].time;
2824 *edit_list_duration = msc->elst_data[edit_list_index].duration;
2826 /* duration is in global timescale units;convert to msc timescale */
2827 if (global_timescale == 0) {
2828 avpriv_request_sample(mov->fc, "Support for mvhd.timescale = 0 with editlists");
2831 *edit_list_duration = av_rescale(*edit_list_duration, msc->time_scale,
2837 * Find the closest previous frame to the timestamp, in e_old index
2838 * entries. Searching for just any frame / just key frames can be controlled by
2839 * last argument 'flag'.
2840 * Returns the index of the entry in st->index_entries if successful,
2843 static int64_t find_prev_closest_index(AVStream *st,
2844 AVIndexEntry *e_old,
2849 AVIndexEntry *e_keep = st->index_entries;
2850 int nb_keep = st->nb_index_entries;
2854 st->index_entries = e_old;
2855 st->nb_index_entries = nb_old;
2856 found = av_index_search_timestamp(st, timestamp, flag | AVSEEK_FLAG_BACKWARD);
2858 // Keep going backwards in the index entries until the timestamp is the same.
2860 for (i = found; i > 0 && e_old[i].timestamp == e_old[i - 1].timestamp;
2862 if ((flag & AVSEEK_FLAG_ANY) ||
2863 (e_old[i - 1].flags & AVINDEX_KEYFRAME)) {
2869 /* restore AVStream state*/
2870 st->index_entries = e_keep;
2871 st->nb_index_entries = nb_keep;
2876 * Add index entry with the given values, to the end of st->index_entries.
2877 * Returns the new size st->index_entries if successful, else returns -1.
2879 * This function is similar to ff_add_index_entry in libavformat/utils.c
2880 * except that here we are always unconditionally adding an index entry to
2881 * the end, instead of searching the entries list and skipping the add if
2882 * there is an existing entry with the same timestamp.
2883 * This is needed because the mov_fix_index calls this func with the same
2884 * unincremented timestamp for successive discarded frames.
2886 static int64_t add_index_entry(AVStream *st, int64_t pos, int64_t timestamp,
2887 int size, int distance, int flags)
2889 AVIndexEntry *entries, *ie;
2891 const size_t min_size_needed = (st->nb_index_entries + 1) * sizeof(AVIndexEntry);
2893 // Double the allocation each time, to lower memory fragmentation.
2894 // Another difference from ff_add_index_entry function.
2895 const size_t requested_size =
2896 min_size_needed > st->index_entries_allocated_size ?
2897 FFMAX(min_size_needed, 2 * st->index_entries_allocated_size) :
2900 if((unsigned)st->nb_index_entries + 1 >= UINT_MAX / sizeof(AVIndexEntry))
2903 entries = av_fast_realloc(st->index_entries,
2904 &st->index_entries_allocated_size,
2909 st->index_entries= entries;
2911 index= st->nb_index_entries++;
2912 ie= &entries[index];
2915 ie->timestamp = timestamp;
2916 ie->min_distance= distance;
2923 * Rewrite timestamps of index entries in the range [end_index - frame_duration_buffer_size, end_index)
2924 * by subtracting end_ts successively by the amounts given in frame_duration_buffer.
2926 static void fix_index_entry_timestamps(AVStream* st, int end_index, int64_t end_ts,
2927 int64_t* frame_duration_buffer,
2928 int frame_duration_buffer_size) {
2930 av_assert0(end_index >= 0 && end_index <= st->nb_index_entries);
2931 for (i = 0; i < frame_duration_buffer_size; i++) {
2932 end_ts -= frame_duration_buffer[frame_duration_buffer_size - 1 - i];
2933 st->index_entries[end_index - 1 - i].timestamp = end_ts;
2938 * Append a new ctts entry to ctts_data.
2939 * Returns the new ctts_count if successful, else returns -1.
2941 static int64_t add_ctts_entry(MOVStts** ctts_data, unsigned int* ctts_count, unsigned int* allocated_size,
2942 int count, int duration)
2944 MOVStts *ctts_buf_new;
2945 const size_t min_size_needed = (*ctts_count + 1) * sizeof(MOVStts);
2946 const size_t requested_size =
2947 min_size_needed > *allocated_size ?
2948 FFMAX(min_size_needed, 2 * (*allocated_size)) :
2951 if((unsigned)(*ctts_count) + 1 >= UINT_MAX / sizeof(MOVStts))
2954 ctts_buf_new = av_fast_realloc(*ctts_data, allocated_size, requested_size);
2959 *ctts_data = ctts_buf_new;
2961 ctts_buf_new[*ctts_count].count = count;
2962 ctts_buf_new[*ctts_count].duration = duration;
2964 *ctts_count = (*ctts_count) + 1;
2968 static void mov_current_sample_inc(MOVStreamContext *sc)
2970 sc->current_sample++;
2971 sc->current_index++;
2972 if (sc->index_ranges &&
2973 sc->current_index >= sc->current_index_range->end &&
2974 sc->current_index_range->end) {
2975 sc->current_index_range++;
2976 sc->current_index = sc->current_index_range->start;
2980 static void mov_current_sample_dec(MOVStreamContext *sc)
2982 sc->current_sample--;
2983 sc->current_index--;
2984 if (sc->index_ranges &&
2985 sc->current_index < sc->current_index_range->start &&
2986 sc->current_index_range > sc->index_ranges) {
2987 sc->current_index_range--;
2988 sc->current_index = sc->current_index_range->end - 1;
2992 static void mov_current_sample_set(MOVStreamContext *sc, int current_sample)
2996 sc->current_sample = current_sample;
2997 sc->current_index = current_sample;
2998 if (!sc->index_ranges) {
3002 for (sc->current_index_range = sc->index_ranges;
3003 sc->current_index_range->end;
3004 sc->current_index_range++) {
3005 range_size = sc->current_index_range->end - sc->current_index_range->start;
3006 if (range_size > current_sample) {
3007 sc->current_index = sc->current_index_range->start + current_sample;
3010 current_sample -= range_size;
3015 * Fix st->index_entries, so that it contains only the entries (and the entries
3016 * which are needed to decode them) that fall in the edit list time ranges.
3017 * Also fixes the timestamps of the index entries to match the timeline
3018 * specified the edit lists.
3020 static void mov_fix_index(MOVContext *mov, AVStream *st)
3022 MOVStreamContext *msc = st->priv_data;
3023 AVIndexEntry *e_old = st->index_entries;
3024 int nb_old = st->nb_index_entries;
3025 const AVIndexEntry *e_old_end = e_old + nb_old;
3026 const AVIndexEntry *current = NULL;
3027 MOVStts *ctts_data_old = msc->ctts_data;
3028 int64_t ctts_index_old = 0;
3029 int64_t ctts_sample_old = 0;
3030 int64_t ctts_count_old = msc->ctts_count;
3031 int64_t edit_list_media_time = 0;
3032 int64_t edit_list_duration = 0;
3033 int64_t frame_duration = 0;
3034 int64_t edit_list_dts_counter = 0;
3035 int64_t edit_list_dts_entry_end = 0;
3036 int64_t edit_list_start_ctts_sample = 0;
3038 int64_t edit_list_index = 0;
3040 int64_t index_ctts_count;
3042 unsigned int ctts_allocated_size = 0;
3043 int64_t start_dts = 0;
3044 int64_t edit_list_media_time_dts = 0;
3045 int64_t edit_list_start_encountered = 0;
3046 int64_t search_timestamp = 0;
3047 int64_t* frame_duration_buffer = NULL;
3048 int num_discarded_begin = 0;
3049 int first_non_zero_audio_edit = -1;
3050 int packet_skip_samples = 0;
3051 MOVIndexRange *current_index_range;
3053 if (!msc->elst_data || msc->elst_count <= 0 || nb_old <= 0) {
3057 // allocate the index ranges array
3058 msc->index_ranges = av_malloc((msc->elst_count + 1) * sizeof(msc->index_ranges[0]));
3059 if (!msc->index_ranges) {
3060 av_log(mov->fc, AV_LOG_ERROR, "Cannot allocate index ranges buffer\n");
3063 msc->current_index_range = msc->index_ranges;
3064 current_index_range = msc->index_ranges - 1;
3066 // Clean AVStream from traces of old index
3067 st->index_entries = NULL;
3068 st->index_entries_allocated_size = 0;
3069 st->nb_index_entries = 0;
3071 // Clean ctts fields of MOVStreamContext
3072 msc->ctts_data = NULL;
3073 msc->ctts_count = 0;
3074 msc->ctts_index = 0;
3075 msc->ctts_sample = 0;
3077 // If the dts_shift is positive (in case of negative ctts values in mov),
3078 // then negate the DTS by dts_shift
3079 if (msc->dts_shift > 0)
3080 edit_list_dts_entry_end -= msc->dts_shift;
3082 // Offset the DTS by ctts[0] to make the PTS of the first frame 0
3083 if (ctts_data_old && ctts_count_old > 0) {
3084 edit_list_dts_entry_end -= ctts_data_old[0].duration;
3085 av_log(mov->fc, AV_LOG_DEBUG, "Offset DTS by ctts[%d].duration: %d\n", 0, ctts_data_old[0].duration);
3088 start_dts = edit_list_dts_entry_end;
3090 while (get_edit_list_entry(mov, msc, edit_list_index, &edit_list_media_time,
3091 &edit_list_duration, mov->time_scale)) {
3092 av_log(mov->fc, AV_LOG_DEBUG, "Processing st: %d, edit list %"PRId64" - media time: %"PRId64", duration: %"PRId64"\n",
3093 st->index, edit_list_index, edit_list_media_time, edit_list_duration);
3095 edit_list_dts_counter = edit_list_dts_entry_end;
3096 edit_list_dts_entry_end += edit_list_duration;
3097 num_discarded_begin = 0;
3098 if (edit_list_media_time == -1) {
3102 // If we encounter a non-negative edit list reset the skip_samples/start_pad fields and set them
3103 // according to the edit list below.
3104 if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
3105 if (first_non_zero_audio_edit < 0) {
3106 first_non_zero_audio_edit = 1;
3108 first_non_zero_audio_edit = 0;
3111 if (first_non_zero_audio_edit > 0)
3112 st->skip_samples = msc->start_pad = 0;
3115 //find closest previous key frame
3116 edit_list_media_time_dts = edit_list_media_time;
3117 if (msc->dts_shift > 0) {
3118 edit_list_media_time_dts -= msc->dts_shift;
3121 // While reordering frame index according to edit list we must handle properly
3122 // the scenario when edit list entry starts from none key frame.
3123 // We find closest previous key frame and preserve it and consequent frames in index.
3124 // All frames which are outside edit list entry time boundaries will be dropped after decoding.
3125 search_timestamp = edit_list_media_time_dts;
3126 if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
3127 // Audio decoders like AAC need need a decoder delay samples previous to the current sample,
3128 // to correctly decode this frame. Hence for audio we seek to a frame 1 sec. before the
3129 // edit_list_media_time to cover the decoder delay.
3130 search_timestamp = FFMAX(search_timestamp - msc->time_scale, e_old[0].timestamp);
3133 index = find_prev_closest_index(st, e_old, nb_old, search_timestamp, 0);
3135 av_log(mov->fc, AV_LOG_WARNING,
3136 "st: %d edit list: %"PRId64" Missing key frame while searching for timestamp: %"PRId64"\n",
3137 st->index, edit_list_index, search_timestamp);
3138 index = find_prev_closest_index(st, e_old, nb_old, search_timestamp, AVSEEK_FLAG_ANY);
3141 av_log(mov->fc, AV_LOG_WARNING,
3142 "st: %d edit list %"PRId64" Cannot find an index entry before timestamp: %"PRId64".\n"
3143 "Rounding edit list media time to zero.\n",
3144 st->index, edit_list_index, search_timestamp);
3146 edit_list_media_time = 0;
3149 current = e_old + index;
3152 ctts_sample_old = 0;
3154 // set ctts_index properly for the found key frame
3155 for (index_ctts_count = 0; index_ctts_count < index; index_ctts_count++) {
3156 if (ctts_data_old && ctts_index_old < ctts_count_old) {
3158 if (ctts_data_old[ctts_index_old].count == ctts_sample_old) {
3160 ctts_sample_old = 0;
3165 edit_list_start_ctts_sample = ctts_sample_old;
3167 // Iterate over index and arrange it according to edit list
3168 edit_list_start_encountered = 0;
3169 for (; current < e_old_end; current++, index++) {
3170 // check if frame outside edit list mark it for discard
3171 frame_duration = (current + 1 < e_old_end) ?
3172 ((current + 1)->timestamp - current->timestamp) : edit_list_duration;
3174 flags = current->flags;
3176 // frames (pts) before or after edit list
3177 curr_cts = current->timestamp + msc->dts_shift;
3179 if (ctts_data_old && ctts_index_old < ctts_count_old) {
3180 av_log(mov->fc, AV_LOG_DEBUG, "shifted frame pts, curr_cts: %"PRId64" @ %"PRId64", ctts: %d, ctts_count: %"PRId64"\n",
3181 curr_cts, ctts_index_old, ctts_data_old[ctts_index_old].duration, ctts_count_old);
3182 curr_cts += ctts_data_old[ctts_index_old].duration;
3184 if (ctts_sample_old == ctts_data_old[ctts_index_old].count) {
3185 if (add_ctts_entry(&msc->ctts_data, &msc->ctts_count,
3186 &ctts_allocated_size,
3187 ctts_data_old[ctts_index_old].count - edit_list_start_ctts_sample,
3188 ctts_data_old[ctts_index_old].duration) == -1) {
3189 av_log(mov->fc, AV_LOG_ERROR, "Cannot add CTTS entry %"PRId64" - {%"PRId64", %d}\n",
3191 ctts_data_old[ctts_index_old].count - edit_list_start_ctts_sample,
3192 ctts_data_old[ctts_index_old].duration);
3196 ctts_sample_old = 0;
3197 edit_list_start_ctts_sample = 0;
3201 if (curr_cts < edit_list_media_time || curr_cts >= (edit_list_duration + edit_list_media_time)) {
3202 if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO && st->codecpar->codec_id != AV_CODEC_ID_VORBIS &&
3203 curr_cts < edit_list_media_time && curr_cts + frame_duration > edit_list_media_time &&
3204 first_non_zero_audio_edit > 0) {
3205 packet_skip_samples = edit_list_media_time - curr_cts;
3206 st->skip_samples += packet_skip_samples;
3208 // Shift the index entry timestamp by packet_skip_samples to be correct.
3209 edit_list_dts_counter -= packet_skip_samples;
3210 if (edit_list_start_encountered == 0) {
3211 edit_list_start_encountered = 1;
3212 // Make timestamps strictly monotonically increasing for audio, by rewriting timestamps for
3213 // discarded packets.
3214 if (frame_duration_buffer) {
3215 fix_index_entry_timestamps(st, st->nb_index_entries, edit_list_dts_counter,
3216 frame_duration_buffer, num_discarded_begin);
3217 av_freep(&frame_duration_buffer);
3221 av_log(mov->fc, AV_LOG_DEBUG, "skip %d audio samples from curr_cts: %"PRId64"\n", packet_skip_samples, curr_cts);
3223 flags |= AVINDEX_DISCARD_FRAME;
3224 av_log(mov->fc, AV_LOG_DEBUG, "drop a frame at curr_cts: %"PRId64" @ %"PRId64"\n", curr_cts, index);
3226 if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO && edit_list_start_encountered == 0) {
3227 num_discarded_begin++;
3228 frame_duration_buffer = av_realloc(frame_duration_buffer,
3229 num_discarded_begin * sizeof(int64_t));
3230 if (!frame_duration_buffer) {
3231 av_log(mov->fc, AV_LOG_ERROR, "Cannot reallocate frame duration buffer\n");
3234 frame_duration_buffer[num_discarded_begin - 1] = frame_duration;
3236 // Increment skip_samples for the first non-zero audio edit list
3237 if (first_non_zero_audio_edit > 0 && st->codecpar->codec_id != AV_CODEC_ID_VORBIS) {
3238 st->skip_samples += frame_duration;
3239 msc->start_pad = st->skip_samples;
3243 } else if (edit_list_start_encountered == 0) {
3244 edit_list_start_encountered = 1;
3245 // Make timestamps strictly monotonically increasing for audio, by rewriting timestamps for
3246 // discarded packets.
3247 if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO && frame_duration_buffer) {
3248 fix_index_entry_timestamps(st, st->nb_index_entries, edit_list_dts_counter,
3249 frame_duration_buffer, num_discarded_begin);
3250 av_freep(&frame_duration_buffer);
3254 if (add_index_entry(st, current->pos, edit_list_dts_counter, current->size,
3255 current->min_distance, flags) == -1) {
3256 av_log(mov->fc, AV_LOG_ERROR, "Cannot add index entry\n");
3260 // Update the index ranges array
3261 if (current_index_range < msc->index_ranges || index != current_index_range->end) {
3262 current_index_range++;
3263 current_index_range->start = index;
3265 current_index_range->end = index + 1;
3267 // Only start incrementing DTS in frame_duration amounts, when we encounter a frame in edit list.
3268 if (edit_list_start_encountered > 0) {
3269 edit_list_dts_counter = edit_list_dts_counter + frame_duration;
3272 // Break when found first key frame after edit entry completion
3273 if (((curr_cts + frame_duration) >= (edit_list_duration + edit_list_media_time)) &&
3274 ((flags & AVINDEX_KEYFRAME) || ((st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO)))) {
3276 if (ctts_data_old && ctts_sample_old != 0) {
3277 if (add_ctts_entry(&msc->ctts_data, &msc->ctts_count,
3278 &ctts_allocated_size,
3279 ctts_sample_old - edit_list_start_ctts_sample,
3280 ctts_data_old[ctts_index_old].duration) == -1) {
3281 av_log(mov->fc, AV_LOG_ERROR, "Cannot add CTTS entry %"PRId64" - {%"PRId64", %d}\n",
3282 ctts_index_old, ctts_sample_old - edit_list_start_ctts_sample,
3283 ctts_data_old[ctts_index_old].duration);
3291 // Update av stream length
3292 st->duration = edit_list_dts_entry_end - start_dts;
3294 // Free the old index and the old CTTS structures
3296 av_free(ctts_data_old);
3298 // Null terminate the index ranges array
3299 current_index_range++;
3300 current_index_range->start = 0;
3301 current_index_range->end = 0;
3302 msc->current_index = msc->index_ranges[0].start;
3305 static void mov_build_index(MOVContext *mov, AVStream *st)
3307 MOVStreamContext *sc = st->priv_data;
3308 int64_t current_offset;
3309 int64_t current_dts = 0;
3310 unsigned int stts_index = 0;
3311 unsigned int stsc_index = 0;
3312 unsigned int stss_index = 0;
3313 unsigned int stps_index = 0;
3315 uint64_t stream_size = 0;
3317 if (sc->elst_count) {
3318 int i, edit_start_index = 0, multiple_edits = 0;
3319 int64_t empty_duration = 0; // empty duration of the first edit list entry
3320 int64_t start_time = 0; // start time of the media
3322 for (i = 0; i < sc->elst_count; i++) {
3323 const MOVElst *e = &sc->elst_data[i];
3324 if (i == 0 && e->time == -1) {
3325 /* if empty, the first entry is the start time of the stream
3326 * relative to the presentation itself */
3327 empty_duration = e->duration;
3328 edit_start_index = 1;
3329 } else if (i == edit_start_index && e->time >= 0) {
3330 start_time = e->time;
3336 if (multiple_edits && !mov->advanced_editlist)
3337 av_log(mov->fc, AV_LOG_WARNING, "multiple edit list entries, "
3338 "Use -advanced_editlist to correctly decode otherwise "
3339 "a/v desync might occur\n");
3341 /* adjust first dts according to edit list */
3342 if ((empty_duration || start_time) && mov->time_scale > 0) {
3344 empty_duration = av_rescale(empty_duration, sc->time_scale, mov->time_scale);
3345 sc->time_offset = start_time - empty_duration;
3346 if (!mov->advanced_editlist)
3347 current_dts = -sc->time_offset;
3350 if (!multiple_edits && !mov->advanced_editlist &&
3351 st->codecpar->codec_id == AV_CODEC_ID_AAC && start_time > 0)
3352 sc->start_pad = start_time;
3355 /* only use old uncompressed audio chunk demuxing when stts specifies it */
3356 if (!(st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO &&
3357 sc->stts_count == 1 && sc->stts_data[0].duration == 1)) {
3358 unsigned int current_sample = 0;
3359 unsigned int stts_sample = 0;
3360 unsigned int sample_size;
3361 unsigned int distance = 0;
3362 unsigned int rap_group_index = 0;
3363 unsigned int rap_group_sample = 0;
3364 int64_t last_dts = 0;
3365 int64_t dts_correction = 0;
3366 int rap_group_present = sc->rap_group_count && sc->rap_group;
3367 int key_off = (sc->keyframe_count && sc->keyframes[0] > 0) || (sc->stps_count && sc->stps_data[0] > 0);
3369 current_dts -= sc->dts_shift;
3370 last_dts = current_dts;
3372 if (!sc->sample_count || st->nb_index_entries)
3374 if (sc->sample_count >= UINT_MAX / sizeof(*st->index_entries) - st->nb_index_entries)
3376 if (av_reallocp_array(&st->index_entries,
3377 st->nb_index_entries + sc->sample_count,
3378 sizeof(*st->index_entries)) < 0) {
3379 st->nb_index_entries = 0;
3382 st->index_entries_allocated_size = (st->nb_index_entries + sc->sample_count) * sizeof(*st->index_entries);
3384 for (i = 0; i < sc->chunk_count; i++) {
3385 int64_t next_offset = i+1 < sc->chunk_count ? sc->chunk_offsets[i+1] : INT64_MAX;
3386 current_offset = sc->chunk_offsets[i];
3387 while (mov_stsc_index_valid(stsc_index, sc->stsc_count) &&
3388 i + 1 == sc->stsc_data[stsc_index + 1].first)
3391 if (next_offset > current_offset && sc->sample_size>0 && sc->sample_size < sc->stsz_sample_size &&
3392 sc->stsc_data[stsc_index].count * (int64_t)sc->stsz_sample_size > next_offset - current_offset) {
3393 av_log(mov->fc, AV_LOG_WARNING, "STSZ sample size %d invalid (too large), ignoring\n", sc->stsz_sample_size);
3394 sc->stsz_sample_size = sc->sample_size;
3396 if (sc->stsz_sample_size>0 && sc->stsz_sample_size < sc->sample_size) {
3397 av_log(mov->fc, AV_LOG_WARNING, "STSZ sample size %d invalid (too small), ignoring\n", sc->stsz_sample_size);
3398 sc->stsz_sample_size = sc->sample_size;
3401 for (j = 0; j < sc->stsc_data[stsc_index].count; j++) {
3403 if (current_sample >= sc->sample_count) {
3404 av_log(mov->fc, AV_LOG_ERROR, "wrong sample count\n");
3408 if (!sc->keyframe_absent && (!sc->keyframe_count || current_sample+key_off == sc->keyframes[stss_index])) {
3410 if (stss_index + 1 < sc->keyframe_count)
3412 } else if (sc->stps_count && current_sample+key_off == sc->stps_data[stps_index]) {
3414 if (stps_index + 1 < sc->stps_count)
3417 if (rap_group_present && rap_group_index < sc->rap_group_count) {
3418 if (sc->rap_group[rap_group_index].index > 0)
3420 if (++rap_group_sample == sc->rap_group[rap_group_index].count) {
3421 rap_group_sample = 0;
3425 if (sc->keyframe_absent
3427 && !rap_group_present
3428 && (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO || (i==0 && j==0)))
3432 sample_size = sc->stsz_sample_size > 0 ? sc->stsz_sample_size : sc->sample_sizes[current_sample];
3433 if (sc->pseudo_stream_id == -1 ||
3434 sc->stsc_data[stsc_index].id - 1 == sc->pseudo_stream_id) {
3436 if (sample_size > 0x3FFFFFFF) {
3437 av_log(mov->fc, AV_LOG_ERROR, "Sample size %u is too large\n", sample_size);
3440 e = &st->index_entries[st->nb_index_entries++];
3441 e->pos = current_offset;
3442 e->timestamp = current_dts;
3443 e->size = sample_size;
3444 e->min_distance = distance;
3445 e->flags = keyframe ? AVINDEX_KEYFRAME : 0;
3446 av_log(mov->fc, AV_LOG_TRACE, "AVIndex stream %d, sample %u, offset %"PRIx64", dts %"PRId64", "
3447 "size %u, distance %u, keyframe %d\n", st->index, current_sample,
3448 current_offset, current_dts, sample_size, distance, keyframe);
3449 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO && st->nb_index_entries < 100)
3450 ff_rfps_add_frame(mov->fc, st, current_dts);
3453 current_offset += sample_size;
3454 stream_size += sample_size;
3456 /* A negative sample duration is invalid based on the spec,
3457 * but some samples need it to correct the DTS. */
3458 if (sc->stts_data[stts_index].duration < 0) {
3459 av_log(mov->fc, AV_LOG_WARNING,
3460 "Invalid SampleDelta %d in STTS, at %d st:%d\n",
3461 sc->stts_data[stts_index].duration, stts_index,
3463 dts_correction += sc->stts_data[stts_index].duration - 1;
3464 sc->stts_data[stts_index].duration = 1;
3466 current_dts += sc->stts_data[stts_index].duration;
3467 if (!dts_correction || current_dts + dts_correction > last_dts) {
3468 current_dts += dts_correction;
3471 /* Avoid creating non-monotonous DTS */
3472 dts_correction += current_dts - last_dts - 1;
3473 current_dts = last_dts + 1;
3475 last_dts = current_dts;
3479 if (stts_index + 1 < sc->stts_count && stts_sample == sc->stts_data[stts_index].count) {
3485 if (st->duration > 0)
3486 st->codecpar->bit_rate = stream_size*8*sc->time_scale/st->duration;
3488 unsigned chunk_samples, total = 0;
3490 // compute total chunk count
3491 for (i = 0; i < sc->stsc_count; i++) {
3492 unsigned count, chunk_count;
3494 chunk_samples = sc->stsc_data[i].count;
3495 if (i != sc->stsc_count - 1 &&
3496 sc->samples_per_frame && chunk_samples % sc->samples_per_frame) {
3497 av_log(mov->fc, AV_LOG_ERROR, "error unaligned chunk\n");
3501 if (sc->samples_per_frame >= 160) { // gsm
3502 count = chunk_samples / sc->samples_per_frame;
3503 } else if (sc->samples_per_frame > 1) {
3504 unsigned samples = (1024/sc->samples_per_frame)*sc->samples_per_frame;
3505 count = (chunk_samples+samples-1) / samples;
3507 count = (chunk_samples+1023) / 1024;
3510 if (mov_stsc_index_valid(i, sc->stsc_count))
3511 chunk_count = sc->stsc_data[i+1].first - sc->stsc_data[i].first;
3513 chunk_count = sc->chunk_count - (sc->stsc_data[i].first - 1);
3514 total += chunk_count * count;
3517 av_log(mov->fc, AV_LOG_TRACE, "chunk count %u\n", total);
3518 if (total >= UINT_MAX / sizeof(*st->index_entries) - st->nb_index_entries)
3520 if (av_reallocp_array(&st->index_entries,
3521 st->nb_index_entries + total,
3522 sizeof(*st->index_entries)) < 0) {
3523 st->nb_index_entries = 0;
3526 st->index_entries_allocated_size = (st->nb_index_entries + total) * sizeof(*st->index_entries);
3529 for (i = 0; i < sc->chunk_count; i++) {
3530 current_offset = sc->chunk_offsets[i];
3531 if (mov_stsc_index_valid(stsc_index, sc->stsc_count) &&
3532 i + 1 == sc->stsc_data[stsc_index + 1].first)
3534 chunk_samples = sc->stsc_data[stsc_index].count;
3536 while (chunk_samples > 0) {
3538 unsigned size, samples;
3540 if (sc->samples_per_frame > 1 && !sc->bytes_per_frame) {
3541 avpriv_request_sample(mov->fc,
3542 "Zero bytes per frame, but %d samples per frame",
3543 sc->samples_per_frame);
3547 if (sc->samples_per_frame >= 160) { // gsm
3548 samples = sc->samples_per_frame;
3549 size = sc->bytes_per_frame;
3551 if (sc->samples_per_frame > 1) {
3552 samples = FFMIN((1024 / sc->samples_per_frame)*
3553 sc->samples_per_frame, chunk_samples);
3554 size = (samples / sc->samples_per_frame) * sc->bytes_per_frame;
3556 samples = FFMIN(1024, chunk_samples);
3557 size = samples * sc->sample_size;
3561 if (st->nb_index_entries >= total) {
3562 av_log(mov->fc, AV_LOG_ERROR, "wrong chunk count %u\n", total);
3565 if (size > 0x3FFFFFFF) {
3566 av_log(mov->fc, AV_LOG_ERROR, "Sample size %u is too large\n", size);
3569 e = &st->index_entries[st->nb_index_entries++];
3570 e->pos = current_offset;
3571 e->timestamp = current_dts;
3573 e->min_distance = 0;
3574 e->flags = AVINDEX_KEYFRAME;
3575 av_log(mov->fc, AV_LOG_TRACE, "AVIndex stream %d, chunk %u, offset %"PRIx64", dts %"PRId64", "
3576 "size %u, duration %u\n", st->index, i, current_offset, current_dts,
3579 current_offset += size;
3580 current_dts += samples;
3581 chunk_samples -= samples;
3586 if (!mov->ignore_editlist && mov->advanced_editlist) {
3587 // Fix index according to edit lists.
3588 mov_fix_index(mov, st);
3592 static int test_same_origin(const char *src, const char *ref) {
3602 av_url_split(src_proto, sizeof(src_proto), src_auth, sizeof(src_auth), src_host, sizeof(src_host), &src_port, NULL, 0, src);
3603 av_url_split(ref_proto, sizeof(ref_proto), ref_auth, sizeof(ref_auth), ref_host, sizeof(ref_host), &ref_port, NULL, 0, ref);
3605 if (strlen(src) == 0) {
3607 } else if (strlen(src_auth) + 1 >= sizeof(src_auth) ||
3608 strlen(ref_auth) + 1 >= sizeof(ref_auth) ||
3609 strlen(src_host) + 1 >= sizeof(src_host) ||
3610 strlen(ref_host) + 1 >= sizeof(ref_host)) {