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/avstring.h"
38 #include "libavutil/dict.h"
39 #include "libavutil/display.h"
40 #include "libavutil/opt.h"
41 #include "libavutil/aes.h"
42 #include "libavutil/aes_ctr.h"
43 #include "libavutil/sha.h"
44 #include "libavutil/timecode.h"
45 #include "libavcodec/ac3tab.h"
48 #include "avio_internal.h"
51 #include "libavcodec/get_bits.h"
54 #include "replaygain.h"
60 #include "qtpalette.h"
62 /* those functions parse an atom */
63 /* links atom IDs to parse functions */
64 typedef struct MOVParseTableEntry {
66 int (*parse)(MOVContext *ctx, AVIOContext *pb, MOVAtom atom);
69 static int mov_read_default(MOVContext *c, AVIOContext *pb, MOVAtom atom);
70 static int mov_read_mfra(MOVContext *c, AVIOContext *f);
72 static int mov_metadata_track_or_disc_number(MOVContext *c, AVIOContext *pb,
73 unsigned len, const char *key)
77 short current, total = 0;
78 avio_rb16(pb); // unknown
79 current = avio_rb16(pb);
81 total = avio_rb16(pb);
83 snprintf(buf, sizeof(buf), "%d", current);
85 snprintf(buf, sizeof(buf), "%d/%d", current, total);
86 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
87 av_dict_set(&c->fc->metadata, key, buf, 0);
92 static int mov_metadata_int8_bypass_padding(MOVContext *c, AVIOContext *pb,
93 unsigned len, const char *key)
95 /* bypass padding bytes */
100 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
101 av_dict_set_int(&c->fc->metadata, key, avio_r8(pb), 0);
106 static int mov_metadata_int8_no_padding(MOVContext *c, AVIOContext *pb,
107 unsigned len, const char *key)
109 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
110 av_dict_set_int(&c->fc->metadata, key, avio_r8(pb), 0);
115 static int mov_metadata_gnre(MOVContext *c, AVIOContext *pb,
116 unsigned len, const char *key)
120 avio_r8(pb); // unknown
123 if (genre < 1 || genre > ID3v1_GENRE_MAX)
125 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
126 av_dict_set(&c->fc->metadata, key, ff_id3v1_genre_str[genre-1], 0);
131 static const uint32_t mac_to_unicode[128] = {
132 0x00C4,0x00C5,0x00C7,0x00C9,0x00D1,0x00D6,0x00DC,0x00E1,
133 0x00E0,0x00E2,0x00E4,0x00E3,0x00E5,0x00E7,0x00E9,0x00E8,
134 0x00EA,0x00EB,0x00ED,0x00EC,0x00EE,0x00EF,0x00F1,0x00F3,
135 0x00F2,0x00F4,0x00F6,0x00F5,0x00FA,0x00F9,0x00FB,0x00FC,
136 0x2020,0x00B0,0x00A2,0x00A3,0x00A7,0x2022,0x00B6,0x00DF,
137 0x00AE,0x00A9,0x2122,0x00B4,0x00A8,0x2260,0x00C6,0x00D8,
138 0x221E,0x00B1,0x2264,0x2265,0x00A5,0x00B5,0x2202,0x2211,
139 0x220F,0x03C0,0x222B,0x00AA,0x00BA,0x03A9,0x00E6,0x00F8,
140 0x00BF,0x00A1,0x00AC,0x221A,0x0192,0x2248,0x2206,0x00AB,
141 0x00BB,0x2026,0x00A0,0x00C0,0x00C3,0x00D5,0x0152,0x0153,
142 0x2013,0x2014,0x201C,0x201D,0x2018,0x2019,0x00F7,0x25CA,
143 0x00FF,0x0178,0x2044,0x20AC,0x2039,0x203A,0xFB01,0xFB02,
144 0x2021,0x00B7,0x201A,0x201E,0x2030,0x00C2,0x00CA,0x00C1,
145 0x00CB,0x00C8,0x00CD,0x00CE,0x00CF,0x00CC,0x00D3,0x00D4,
146 0xF8FF,0x00D2,0x00DA,0x00DB,0x00D9,0x0131,0x02C6,0x02DC,
147 0x00AF,0x02D8,0x02D9,0x02DA,0x00B8,0x02DD,0x02DB,0x02C7,
150 static int mov_read_mac_string(MOVContext *c, AVIOContext *pb, int len,
151 char *dst, int dstlen)
154 char *end = dst+dstlen-1;
157 for (i = 0; i < len; i++) {
158 uint8_t t, c = avio_r8(pb);
159 if (c < 0x80 && p < end)
162 PUT_UTF8(mac_to_unicode[c-0x80], t, if (p < end) *p++ = t;);
168 static int mov_read_covr(MOVContext *c, AVIOContext *pb, int type, int len)
172 MOVStreamContext *sc;
177 case 0xd: id = AV_CODEC_ID_MJPEG; break;
178 case 0xe: id = AV_CODEC_ID_PNG; break;
179 case 0x1b: id = AV_CODEC_ID_BMP; break;
181 av_log(c->fc, AV_LOG_WARNING, "Unknown cover type: 0x%x.\n", type);
186 st = avformat_new_stream(c->fc, NULL);
188 return AVERROR(ENOMEM);
189 sc = av_mallocz(sizeof(*sc));
191 return AVERROR(ENOMEM);
194 ret = av_get_packet(pb, &pkt, len);
198 if (pkt.size >= 8 && id != AV_CODEC_ID_BMP) {
199 if (AV_RB64(pkt.data) == 0x89504e470d0a1a0a) {
200 id = AV_CODEC_ID_PNG;
202 id = AV_CODEC_ID_MJPEG;
206 st->disposition |= AV_DISPOSITION_ATTACHED_PIC;
208 st->attached_pic = pkt;
209 st->attached_pic.stream_index = st->index;
210 st->attached_pic.flags |= AV_PKT_FLAG_KEY;
212 st->codecpar->codec_type = AVMEDIA_TYPE_VIDEO;
213 st->codecpar->codec_id = id;
218 static int mov_metadata_loci(MOVContext *c, AVIOContext *pb, unsigned len)
220 char language[4] = { 0 };
221 char buf[200], place[100];
222 uint16_t langcode = 0;
223 double longitude, latitude, altitude;
224 const char *key = "location";
226 if (len < 4 + 2 + 1 + 1 + 4 + 4 + 4) {
227 av_log(c->fc, AV_LOG_ERROR, "loci too short\n");
228 return AVERROR_INVALIDDATA;
231 avio_skip(pb, 4); // version+flags
232 langcode = avio_rb16(pb);
233 ff_mov_lang_to_iso639(langcode, language);
236 len -= avio_get_str(pb, len, place, sizeof(place));
238 av_log(c->fc, AV_LOG_ERROR, "place name too long\n");
239 return AVERROR_INVALIDDATA;
241 avio_skip(pb, 1); // role
245 av_log(c->fc, AV_LOG_ERROR, "no space for coordinates left (%d)\n", len);
246 return AVERROR_INVALIDDATA;
248 longitude = ((int32_t) avio_rb32(pb)) / (float) (1 << 16);
249 latitude = ((int32_t) avio_rb32(pb)) / (float) (1 << 16);
250 altitude = ((int32_t) avio_rb32(pb)) / (float) (1 << 16);
252 // Try to output in the same format as the ?xyz field
253 snprintf(buf, sizeof(buf), "%+08.4f%+09.4f", latitude, longitude);
255 av_strlcatf(buf, sizeof(buf), "%+f", altitude);
256 av_strlcatf(buf, sizeof(buf), "/%s", place);
258 if (*language && strcmp(language, "und")) {
260 snprintf(key2, sizeof(key2), "%s-%s", key, language);
261 av_dict_set(&c->fc->metadata, key2, buf, 0);
263 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
264 return av_dict_set(&c->fc->metadata, key, buf, 0);
267 static int mov_read_udta_string(MOVContext *c, AVIOContext *pb, MOVAtom atom)
270 char key2[32], language[4] = {0};
272 const char *key = NULL;
273 uint16_t langcode = 0;
274 uint32_t data_type = 0, str_size, str_size_alloc;
275 int (*parse)(MOVContext*, AVIOContext*, unsigned, const char*) = NULL;
280 case MKTAG( '@','P','R','M'): key = "premiere_version"; raw = 1; break;
281 case MKTAG( '@','P','R','Q'): key = "quicktime_version"; raw = 1; break;
282 case MKTAG( 'X','M','P','_'):
283 if (c->export_xmp) { key = "xmp"; raw = 1; } break;
284 case MKTAG( 'a','A','R','T'): key = "album_artist"; break;
285 case MKTAG( 'a','k','I','D'): key = "account_type";
286 parse = mov_metadata_int8_no_padding; break;
287 case MKTAG( 'a','p','I','D'): key = "account_id"; break;
288 case MKTAG( 'c','a','t','g'): key = "category"; break;
289 case MKTAG( 'c','p','i','l'): key = "compilation";
290 parse = mov_metadata_int8_no_padding; break;
291 case MKTAG( 'c','p','r','t'): key = "copyright"; break;
292 case MKTAG( 'd','e','s','c'): key = "description"; break;
293 case MKTAG( 'd','i','s','k'): key = "disc";
294 parse = mov_metadata_track_or_disc_number; break;
295 case MKTAG( 'e','g','i','d'): key = "episode_uid";
296 parse = mov_metadata_int8_no_padding; break;
297 case MKTAG( 'g','n','r','e'): key = "genre";
298 parse = mov_metadata_gnre; break;
299 case MKTAG( 'h','d','v','d'): key = "hd_video";
300 parse = mov_metadata_int8_no_padding; break;
301 case MKTAG( 'k','e','y','w'): key = "keywords"; break;
302 case MKTAG( 'l','d','e','s'): key = "synopsis"; break;
303 case MKTAG( 'l','o','c','i'):
304 return mov_metadata_loci(c, pb, atom.size);
305 case MKTAG( 'p','c','s','t'): key = "podcast";
306 parse = mov_metadata_int8_no_padding; break;
307 case MKTAG( 'p','g','a','p'): key = "gapless_playback";
308 parse = mov_metadata_int8_no_padding; break;
309 case MKTAG( 'p','u','r','d'): key = "purchase_date"; break;
310 case MKTAG( 'r','t','n','g'): key = "rating";
311 parse = mov_metadata_int8_no_padding; break;
312 case MKTAG( 's','o','a','a'): key = "sort_album_artist"; break;
313 case MKTAG( 's','o','a','l'): key = "sort_album"; break;
314 case MKTAG( 's','o','a','r'): key = "sort_artist"; break;
315 case MKTAG( 's','o','c','o'): key = "sort_composer"; break;
316 case MKTAG( 's','o','n','m'): key = "sort_name"; break;
317 case MKTAG( 's','o','s','n'): key = "sort_show"; break;
318 case MKTAG( 's','t','i','k'): key = "media_type";
319 parse = mov_metadata_int8_no_padding; break;
320 case MKTAG( 't','r','k','n'): key = "track";
321 parse = mov_metadata_track_or_disc_number; break;
322 case MKTAG( 't','v','e','n'): key = "episode_id"; break;
323 case MKTAG( 't','v','e','s'): key = "episode_sort";
324 parse = mov_metadata_int8_bypass_padding; break;
325 case MKTAG( 't','v','n','n'): key = "network"; break;
326 case MKTAG( 't','v','s','h'): key = "show"; break;
327 case MKTAG( 't','v','s','n'): key = "season_number";
328 parse = mov_metadata_int8_bypass_padding; break;
329 case MKTAG(0xa9,'A','R','T'): key = "artist"; break;
330 case MKTAG(0xa9,'P','R','D'): key = "producer"; break;
331 case MKTAG(0xa9,'a','l','b'): key = "album"; break;
332 case MKTAG(0xa9,'a','u','t'): key = "artist"; break;
333 case MKTAG(0xa9,'c','h','p'): key = "chapter"; break;
334 case MKTAG(0xa9,'c','m','t'): key = "comment"; break;
335 case MKTAG(0xa9,'c','o','m'): key = "composer"; break;
336 case MKTAG(0xa9,'c','p','y'): key = "copyright"; break;
337 case MKTAG(0xa9,'d','a','y'): key = "date"; break;
338 case MKTAG(0xa9,'d','i','r'): key = "director"; break;
339 case MKTAG(0xa9,'d','i','s'): key = "disclaimer"; break;
340 case MKTAG(0xa9,'e','d','1'): key = "edit_date"; break;
341 case MKTAG(0xa9,'e','n','c'): key = "encoder"; break;
342 case MKTAG(0xa9,'f','m','t'): key = "original_format"; break;
343 case MKTAG(0xa9,'g','e','n'): key = "genre"; break;
344 case MKTAG(0xa9,'g','r','p'): key = "grouping"; break;
345 case MKTAG(0xa9,'h','s','t'): key = "host_computer"; break;
346 case MKTAG(0xa9,'i','n','f'): key = "comment"; break;
347 case MKTAG(0xa9,'l','y','r'): key = "lyrics"; break;
348 case MKTAG(0xa9,'m','a','k'): key = "make"; break;
349 case MKTAG(0xa9,'m','o','d'): key = "model"; break;
350 case MKTAG(0xa9,'n','a','m'): key = "title"; break;
351 case MKTAG(0xa9,'o','p','e'): key = "original_artist"; break;
352 case MKTAG(0xa9,'p','r','d'): key = "producer"; break;
353 case MKTAG(0xa9,'p','r','f'): key = "performers"; break;
354 case MKTAG(0xa9,'r','e','q'): key = "playback_requirements"; break;
355 case MKTAG(0xa9,'s','r','c'): key = "original_source"; break;
356 case MKTAG(0xa9,'s','t','3'): key = "subtitle"; break;
357 case MKTAG(0xa9,'s','w','r'): key = "encoder"; break;
358 case MKTAG(0xa9,'t','o','o'): key = "encoder"; break;
359 case MKTAG(0xa9,'t','r','k'): key = "track"; break;
360 case MKTAG(0xa9,'u','r','l'): key = "URL"; break;
361 case MKTAG(0xa9,'w','r','n'): key = "warning"; break;
362 case MKTAG(0xa9,'w','r','t'): key = "composer"; break;
363 case MKTAG(0xa9,'x','y','z'): key = "location"; break;
366 if (c->itunes_metadata && atom.size > 8) {
367 int data_size = avio_rb32(pb);
368 int tag = avio_rl32(pb);
369 if (tag == MKTAG('d','a','t','a') && data_size <= atom.size) {
370 data_type = avio_rb32(pb); // type
371 avio_rb32(pb); // unknown
372 str_size = data_size - 16;
375 if (atom.type == MKTAG('c', 'o', 'v', 'r')) {
376 int ret = mov_read_covr(c, pb, data_type, str_size);
378 av_log(c->fc, AV_LOG_ERROR, "Error parsing cover art.\n");
381 } else if (!key && c->found_hdlr_mdta && c->meta_keys) {
382 uint32_t index = AV_RB32(&atom.type);
383 if (index < c->meta_keys_count) {
384 key = c->meta_keys[index];
386 av_log(c->fc, AV_LOG_WARNING,
387 "The index of 'data' is out of range: %d >= %d.\n",
388 index, c->meta_keys_count);
392 } else if (atom.size > 4 && key && !c->itunes_metadata && !raw) {
393 str_size = avio_rb16(pb); // string length
394 if (str_size > atom.size) {
396 avio_seek(pb, -2, SEEK_CUR);
397 av_log(c->fc, AV_LOG_WARNING, "UDTA parsing failed retrying raw\n");
400 langcode = avio_rb16(pb);
401 ff_mov_lang_to_iso639(langcode, language);
404 str_size = atom.size;
406 if (c->export_all && !key) {
407 snprintf(tmp_key, 5, "%.4s", (char*)&atom.type);
413 if (atom.size < 0 || str_size >= INT_MAX/2)
414 return AVERROR_INVALIDDATA;
416 // Allocates enough space if data_type is a float32 number, otherwise
417 // worst-case requirement for output string in case of utf8 coded input
418 num = (data_type == 23);
419 str_size_alloc = (num ? 512 : (raw ? str_size : str_size * 2)) + 1;
420 str = av_mallocz(str_size_alloc);
422 return AVERROR(ENOMEM);
425 parse(c, pb, str_size, key);
427 if (!raw && (data_type == 3 || (data_type == 0 && (langcode < 0x400 || langcode == 0x7fff)))) { // MAC Encoded
428 mov_read_mac_string(c, pb, str_size, str, str_size_alloc);
429 } else if (data_type == 23 && str_size >= 4) { // BE float32
430 float val = av_int2float(avio_rb32(pb));
431 if (snprintf(str, str_size_alloc, "%f", val) >= str_size_alloc) {
432 av_log(c->fc, AV_LOG_ERROR,
433 "Failed to store the float32 number (%f) in string.\n", val);
435 return AVERROR_INVALIDDATA;
438 int ret = ffio_read_size(pb, str, str_size);
445 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
446 av_dict_set(&c->fc->metadata, key, str, 0);
447 if (*language && strcmp(language, "und")) {
448 snprintf(key2, sizeof(key2), "%s-%s", key, language);
449 av_dict_set(&c->fc->metadata, key2, str, 0);
451 if (!strcmp(key, "encoder")) {
452 int major, minor, micro;
453 if (sscanf(str, "HandBrake %d.%d.%d", &major, &minor, µ) == 3) {
454 c->handbrake_version = 1000000*major + 1000*minor + micro;
458 av_log(c->fc, AV_LOG_TRACE, "lang \"%3s\" ", language);
459 av_log(c->fc, AV_LOG_TRACE, "tag \"%s\" value \"%s\" atom \"%.4s\" %d %"PRId64"\n",
460 key, str, (char*)&atom.type, str_size_alloc, atom.size);
466 static int mov_read_chpl(MOVContext *c, AVIOContext *pb, MOVAtom atom)
469 int i, nb_chapters, str_len, version;
473 if (c->ignore_chapters)
476 if ((atom.size -= 5) < 0)
479 version = avio_r8(pb);
482 avio_rb32(pb); // ???
483 nb_chapters = avio_r8(pb);
485 for (i = 0; i < nb_chapters; i++) {
489 start = avio_rb64(pb);
490 str_len = avio_r8(pb);
492 if ((atom.size -= 9+str_len) < 0)
495 ret = ffio_read_size(pb, str, str_len);
499 avpriv_new_chapter(c->fc, i, (AVRational){1,10000000}, start, AV_NOPTS_VALUE, str);
504 #define MIN_DATA_ENTRY_BOX_SIZE 12
505 static int mov_read_dref(MOVContext *c, AVIOContext *pb, MOVAtom atom)
508 MOVStreamContext *sc;
511 if (c->fc->nb_streams < 1)
513 st = c->fc->streams[c->fc->nb_streams-1];
516 avio_rb32(pb); // version + flags
517 entries = avio_rb32(pb);
519 entries > (atom.size - 1) / MIN_DATA_ENTRY_BOX_SIZE + 1 ||
520 entries >= UINT_MAX / sizeof(*sc->drefs))
521 return AVERROR_INVALIDDATA;
525 sc->drefs = av_mallocz(entries * sizeof(*sc->drefs));
527 return AVERROR(ENOMEM);
528 sc->drefs_count = entries;
530 for (i = 0; i < entries; i++) {
531 MOVDref *dref = &sc->drefs[i];
532 uint32_t size = avio_rb32(pb);
533 int64_t next = avio_tell(pb) + size - 4;
536 return AVERROR_INVALIDDATA;
538 dref->type = avio_rl32(pb);
539 avio_rb32(pb); // version + flags
540 av_log(c->fc, AV_LOG_TRACE, "type %.4s size %d\n", (char*)&dref->type, size);
542 if (dref->type == MKTAG('a','l','i','s') && size > 150) {
543 /* macintosh alias record */
544 uint16_t volume_len, len;
550 volume_len = avio_r8(pb);
551 volume_len = FFMIN(volume_len, 27);
552 ret = ffio_read_size(pb, dref->volume, 27);
555 dref->volume[volume_len] = 0;
556 av_log(c->fc, AV_LOG_DEBUG, "volume %s, len %d\n", dref->volume, volume_len);
561 len = FFMIN(len, 63);
562 ret = ffio_read_size(pb, dref->filename, 63);
565 dref->filename[len] = 0;
566 av_log(c->fc, AV_LOG_DEBUG, "filename %s, len %d\n", dref->filename, len);
570 /* read next level up_from_alias/down_to_target */
571 dref->nlvl_from = avio_rb16(pb);
572 dref->nlvl_to = avio_rb16(pb);
573 av_log(c->fc, AV_LOG_DEBUG, "nlvl from %d, nlvl to %d\n",
574 dref->nlvl_from, dref->nlvl_to);
578 for (type = 0; type != -1 && avio_tell(pb) < next; ) {
581 type = avio_rb16(pb);
583 av_log(c->fc, AV_LOG_DEBUG, "type %d, len %d\n", type, len);
586 if (type == 2) { // absolute path
588 dref->path = av_mallocz(len+1);
590 return AVERROR(ENOMEM);
592 ret = ffio_read_size(pb, dref->path, len);
594 av_freep(&dref->path);
597 if (len > volume_len && !strncmp(dref->path, dref->volume, volume_len)) {
599 memmove(dref->path, dref->path+volume_len, len);
602 // trim string of any ending zeros
603 for (j = len - 1; j >= 0; j--) {
604 if (dref->path[j] == 0)
609 for (j = 0; j < len; j++)
610 if (dref->path[j] == ':' || dref->path[j] == 0)
612 av_log(c->fc, AV_LOG_DEBUG, "path %s\n", dref->path);
613 } else if (type == 0) { // directory name
615 dref->dir = av_malloc(len+1);
617 return AVERROR(ENOMEM);
619 ret = ffio_read_size(pb, dref->dir, len);
621 av_freep(&dref->dir);
625 for (j = 0; j < len; j++)
626 if (dref->dir[j] == ':')
628 av_log(c->fc, AV_LOG_DEBUG, "dir %s\n", dref->dir);
633 av_log(c->fc, AV_LOG_DEBUG, "Unknown dref type 0x08%x size %d\n",
638 avio_seek(pb, next, SEEK_SET);
643 static int mov_read_hdlr(MOVContext *c, AVIOContext *pb, MOVAtom atom)
647 uint32_t av_unused ctype;
652 avio_r8(pb); /* version */
653 avio_rb24(pb); /* flags */
656 ctype = avio_rl32(pb);
657 type = avio_rl32(pb); /* component subtype */
659 av_log(c->fc, AV_LOG_TRACE, "ctype= %.4s (0x%08x)\n", (char*)&ctype, ctype);
660 av_log(c->fc, AV_LOG_TRACE, "stype= %.4s\n", (char*)&type);
662 if (c->trak_index < 0) { // meta not inside a trak
663 if (type == MKTAG('m','d','t','a')) {
664 c->found_hdlr_mdta = 1;
669 st = c->fc->streams[c->fc->nb_streams-1];
671 if (type == MKTAG('v','i','d','e'))
672 st->codecpar->codec_type = AVMEDIA_TYPE_VIDEO;
673 else if (type == MKTAG('s','o','u','n'))
674 st->codecpar->codec_type = AVMEDIA_TYPE_AUDIO;
675 else if (type == MKTAG('m','1','a',' '))
676 st->codecpar->codec_id = AV_CODEC_ID_MP2;
677 else if ((type == MKTAG('s','u','b','p')) || (type == MKTAG('c','l','c','p')))
678 st->codecpar->codec_type = AVMEDIA_TYPE_SUBTITLE;
680 avio_rb32(pb); /* component manufacture */
681 avio_rb32(pb); /* component flags */
682 avio_rb32(pb); /* component flags mask */
684 title_size = atom.size - 24;
685 if (title_size > 0) {
686 title_str = av_malloc(title_size + 1); /* Add null terminator */
688 return AVERROR(ENOMEM);
690 ret = ffio_read_size(pb, title_str, title_size);
692 av_freep(&title_str);
695 title_str[title_size] = 0;
697 int off = (!c->isom && title_str[0] == title_size - 1);
698 av_dict_set(&st->metadata, "handler_name", title_str + off, 0);
700 av_freep(&title_str);
706 int ff_mov_read_esds(AVFormatContext *fc, AVIOContext *pb)
711 if (fc->nb_streams < 1)
713 st = fc->streams[fc->nb_streams-1];
715 avio_rb32(pb); /* version + flags */
716 ff_mp4_read_descr(fc, pb, &tag);
717 if (tag == MP4ESDescrTag) {
718 ff_mp4_parse_es_descr(pb, NULL);
720 avio_rb16(pb); /* ID */
722 ff_mp4_read_descr(fc, pb, &tag);
723 if (tag == MP4DecConfigDescrTag)
724 ff_mp4_read_dec_config_descr(fc, st, pb);
728 static int mov_read_esds(MOVContext *c, AVIOContext *pb, MOVAtom atom)
730 return ff_mov_read_esds(c->fc, pb);
733 static int mov_read_dac3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
736 enum AVAudioServiceType *ast;
737 int ac3info, acmod, lfeon, bsmod;
739 if (c->fc->nb_streams < 1)
741 st = c->fc->streams[c->fc->nb_streams-1];
743 ast = (enum AVAudioServiceType*)av_stream_new_side_data(st, AV_PKT_DATA_AUDIO_SERVICE_TYPE,
746 return AVERROR(ENOMEM);
748 ac3info = avio_rb24(pb);
749 bsmod = (ac3info >> 14) & 0x7;
750 acmod = (ac3info >> 11) & 0x7;
751 lfeon = (ac3info >> 10) & 0x1;
752 st->codecpar->channels = ((int[]){2,1,2,3,3,4,4,5})[acmod] + lfeon;
753 st->codecpar->channel_layout = avpriv_ac3_channel_layout_tab[acmod];
755 st->codecpar->channel_layout |= AV_CH_LOW_FREQUENCY;
757 if (st->codecpar->channels > 1 && bsmod == 0x7)
758 *ast = AV_AUDIO_SERVICE_TYPE_KARAOKE;
760 #if FF_API_LAVF_AVCTX
761 FF_DISABLE_DEPRECATION_WARNINGS
762 st->codec->audio_service_type = *ast;
763 FF_ENABLE_DEPRECATION_WARNINGS
769 static int mov_read_dec3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
772 enum AVAudioServiceType *ast;
773 int eac3info, acmod, lfeon, bsmod;
775 if (c->fc->nb_streams < 1)
777 st = c->fc->streams[c->fc->nb_streams-1];
779 ast = (enum AVAudioServiceType*)av_stream_new_side_data(st, AV_PKT_DATA_AUDIO_SERVICE_TYPE,
782 return AVERROR(ENOMEM);
784 /* No need to parse fields for additional independent substreams and its
785 * associated dependent substreams since libavcodec's E-AC-3 decoder
786 * does not support them yet. */
787 avio_rb16(pb); /* data_rate and num_ind_sub */
788 eac3info = avio_rb24(pb);
789 bsmod = (eac3info >> 12) & 0x1f;
790 acmod = (eac3info >> 9) & 0x7;
791 lfeon = (eac3info >> 8) & 0x1;
792 st->codecpar->channel_layout = avpriv_ac3_channel_layout_tab[acmod];
794 st->codecpar->channel_layout |= AV_CH_LOW_FREQUENCY;
795 st->codecpar->channels = av_get_channel_layout_nb_channels(st->codecpar->channel_layout);
797 if (st->codecpar->channels > 1 && bsmod == 0x7)
798 *ast = AV_AUDIO_SERVICE_TYPE_KARAOKE;
800 #if FF_API_LAVF_AVCTX
801 FF_DISABLE_DEPRECATION_WARNINGS
802 st->codec->audio_service_type = *ast;
803 FF_ENABLE_DEPRECATION_WARNINGS
809 static int mov_read_ddts(MOVContext *c, AVIOContext *pb, MOVAtom atom)
811 const uint32_t ddts_size = 20;
814 uint32_t frame_duration_code = 0;
815 uint32_t channel_layout_code = 0;
818 buf = av_malloc(ddts_size + FF_INPUT_BUFFER_PADDING_SIZE);
820 return AVERROR(ENOMEM);
822 if (avio_read(pb, buf, ddts_size) < ddts_size) {
824 return AVERROR_INVALIDDATA;
827 init_get_bits(&gb, buf, 8*ddts_size);
829 if (c->fc->nb_streams < 1) {
832 st = c->fc->streams[c->fc->nb_streams-1];
834 st->codecpar->sample_rate = get_bits_long(&gb, 32);
835 skip_bits_long(&gb, 32); /* max bitrate */
836 st->codecpar->bit_rate = get_bits_long(&gb, 32);
837 st->codecpar->bits_per_coded_sample = get_bits(&gb, 8);
838 frame_duration_code = get_bits(&gb, 2);
839 skip_bits(&gb, 30); /* various fields */
840 channel_layout_code = get_bits(&gb, 16);
842 st->codecpar->frame_size =
843 (frame_duration_code == 0) ? 512 :
844 (frame_duration_code == 1) ? 1024 :
845 (frame_duration_code == 2) ? 2048 :
846 (frame_duration_code == 3) ? 4096 : 0;
848 if (channel_layout_code > 0xff) {
849 av_log(c->fc, AV_LOG_WARNING, "Unsupported DTS audio channel layout");
851 st->codecpar->channel_layout =
852 ((channel_layout_code & 0x1) ? AV_CH_FRONT_CENTER : 0) |
853 ((channel_layout_code & 0x2) ? AV_CH_FRONT_LEFT : 0) |
854 ((channel_layout_code & 0x2) ? AV_CH_FRONT_RIGHT : 0) |
855 ((channel_layout_code & 0x4) ? AV_CH_SIDE_LEFT : 0) |
856 ((channel_layout_code & 0x4) ? AV_CH_SIDE_RIGHT : 0) |
857 ((channel_layout_code & 0x8) ? AV_CH_LOW_FREQUENCY : 0);
859 st->codecpar->channels = av_get_channel_layout_nb_channels(st->codecpar->channel_layout);
864 static int mov_read_chan(MOVContext *c, AVIOContext *pb, MOVAtom atom)
868 if (c->fc->nb_streams < 1)
870 st = c->fc->streams[c->fc->nb_streams-1];
875 /* skip version and flags */
878 ff_mov_read_chan(c->fc, pb, st, atom.size - 4);
883 static int mov_read_wfex(MOVContext *c, AVIOContext *pb, MOVAtom atom)
888 if (c->fc->nb_streams < 1)
890 st = c->fc->streams[c->fc->nb_streams-1];
892 if ((ret = ff_get_wav_header(c->fc, pb, st->codecpar, atom.size, 0)) < 0)
893 av_log(c->fc, AV_LOG_WARNING, "get_wav_header failed\n");
898 static int mov_read_pasp(MOVContext *c, AVIOContext *pb, MOVAtom atom)
900 const int num = avio_rb32(pb);
901 const int den = avio_rb32(pb);
904 if (c->fc->nb_streams < 1)
906 st = c->fc->streams[c->fc->nb_streams-1];
908 if ((st->sample_aspect_ratio.den != 1 || st->sample_aspect_ratio.num) && // default
909 (den != st->sample_aspect_ratio.den || num != st->sample_aspect_ratio.num)) {
910 av_log(c->fc, AV_LOG_WARNING,
911 "sample aspect ratio already set to %d:%d, ignoring 'pasp' atom (%d:%d)\n",
912 st->sample_aspect_ratio.num, st->sample_aspect_ratio.den,
914 } else if (den != 0) {
915 av_reduce(&st->sample_aspect_ratio.num, &st->sample_aspect_ratio.den,
921 /* this atom contains actual media data */
922 static int mov_read_mdat(MOVContext *c, AVIOContext *pb, MOVAtom atom)
924 if (atom.size == 0) /* wrong one (MP4) */
927 return 0; /* now go for moov */
930 #define DRM_BLOB_SIZE 56
932 static int mov_read_adrm(MOVContext *c, AVIOContext *pb, MOVAtom atom)
934 uint8_t intermediate_key[20];
935 uint8_t intermediate_iv[20];
938 uint8_t file_checksum[20];
939 uint8_t calculated_checksum[20];
943 uint8_t *activation_bytes = c->activation_bytes;
944 uint8_t *fixed_key = c->audible_fixed_key;
948 sha = av_sha_alloc();
950 return AVERROR(ENOMEM);
951 c->aes_decrypt = av_aes_alloc();
952 if (!c->aes_decrypt) {
953 ret = AVERROR(ENOMEM);
957 /* drm blob processing */
958 avio_read(pb, output, 8); // go to offset 8, absolute position 0x251
959 avio_read(pb, input, DRM_BLOB_SIZE);
960 avio_read(pb, output, 4); // go to offset 4, absolute position 0x28d
961 avio_read(pb, file_checksum, 20);
963 av_log(c->fc, AV_LOG_INFO, "[aax] file checksum == "); // required by external tools
964 for (i = 0; i < 20; i++)
965 av_log(sha, AV_LOG_INFO, "%02x", file_checksum[i]);
966 av_log(c->fc, AV_LOG_INFO, "\n");
968 /* verify activation data */
969 if (!activation_bytes) {
970 av_log(c->fc, AV_LOG_WARNING, "[aax] activation_bytes option is missing!\n");
971 ret = 0; /* allow ffprobe to continue working on .aax files */
974 if (c->activation_bytes_size != 4) {
975 av_log(c->fc, AV_LOG_FATAL, "[aax] activation_bytes value needs to be 4 bytes!\n");
976 ret = AVERROR(EINVAL);
980 /* verify fixed key */
981 if (c->audible_fixed_key_size != 16) {
982 av_log(c->fc, AV_LOG_FATAL, "[aax] audible_fixed_key value needs to be 16 bytes!\n");
983 ret = AVERROR(EINVAL);
987 /* AAX (and AAX+) key derivation */
988 av_sha_init(sha, 160);
989 av_sha_update(sha, fixed_key, 16);
990 av_sha_update(sha, activation_bytes, 4);
991 av_sha_final(sha, intermediate_key);
992 av_sha_init(sha, 160);
993 av_sha_update(sha, fixed_key, 16);
994 av_sha_update(sha, intermediate_key, 20);
995 av_sha_update(sha, activation_bytes, 4);
996 av_sha_final(sha, intermediate_iv);
997 av_sha_init(sha, 160);
998 av_sha_update(sha, intermediate_key, 16);
999 av_sha_update(sha, intermediate_iv, 16);
1000 av_sha_final(sha, calculated_checksum);
1001 if (memcmp(calculated_checksum, file_checksum, 20)) { // critical error
1002 av_log(c->fc, AV_LOG_ERROR, "[aax] mismatch in checksums!\n");
1003 ret = AVERROR_INVALIDDATA;
1006 av_aes_init(c->aes_decrypt, intermediate_key, 128, 1);
1007 av_aes_crypt(c->aes_decrypt, output, input, DRM_BLOB_SIZE >> 4, intermediate_iv, 1);
1008 for (i = 0; i < 4; i++) {
1009 // file data (in output) is stored in big-endian mode
1010 if (activation_bytes[i] != output[3 - i]) { // critical error
1011 av_log(c->fc, AV_LOG_ERROR, "[aax] error in drm blob decryption!\n");
1012 ret = AVERROR_INVALIDDATA;
1016 memcpy(c->file_key, output + 8, 16);
1017 memcpy(input, output + 26, 16);
1018 av_sha_init(sha, 160);
1019 av_sha_update(sha, input, 16);
1020 av_sha_update(sha, c->file_key, 16);
1021 av_sha_update(sha, fixed_key, 16);
1022 av_sha_final(sha, c->file_iv);
1030 // Audible AAX (and AAX+) bytestream decryption
1031 static int aax_filter(uint8_t *input, int size, MOVContext *c)
1034 unsigned char iv[16];
1036 memcpy(iv, c->file_iv, 16); // iv is overwritten
1037 blocks = size >> 4; // trailing bytes are not encrypted!
1038 av_aes_init(c->aes_decrypt, c->file_key, 128, 1);
1039 av_aes_crypt(c->aes_decrypt, input, input, blocks, iv, 1);
1044 /* read major brand, minor version and compatible brands and store them as metadata */
1045 static int mov_read_ftyp(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1048 int comp_brand_size;
1049 char* comp_brands_str;
1050 uint8_t type[5] = {0};
1051 int ret = ffio_read_size(pb, type, 4);
1055 if (strcmp(type, "qt "))
1057 av_log(c->fc, AV_LOG_DEBUG, "ISO: File Type Major Brand: %.4s\n",(char *)&type);
1058 av_dict_set(&c->fc->metadata, "major_brand", type, 0);
1059 minor_ver = avio_rb32(pb); /* minor version */
1060 av_dict_set_int(&c->fc->metadata, "minor_version", minor_ver, 0);
1062 comp_brand_size = atom.size - 8;
1063 if (comp_brand_size < 0)
1064 return AVERROR_INVALIDDATA;
1065 comp_brands_str = av_malloc(comp_brand_size + 1); /* Add null terminator */
1066 if (!comp_brands_str)
1067 return AVERROR(ENOMEM);
1069 ret = ffio_read_size(pb, comp_brands_str, comp_brand_size);
1071 av_freep(&comp_brands_str);
1074 comp_brands_str[comp_brand_size] = 0;
1075 av_dict_set(&c->fc->metadata, "compatible_brands", comp_brands_str, 0);
1076 av_freep(&comp_brands_str);
1081 /* this atom should contain all header atoms */
1082 static int mov_read_moov(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1086 if (c->found_moov) {
1087 av_log(c->fc, AV_LOG_WARNING, "Found duplicated MOOV Atom. Skipped it\n");
1088 avio_skip(pb, atom.size);
1092 if ((ret = mov_read_default(c, pb, atom)) < 0)
1094 /* we parsed the 'moov' atom, we can terminate the parsing as soon as we find the 'mdat' */
1095 /* so we don't parse the whole file if over a network */
1097 return 0; /* now go for mdat */
1100 static int mov_read_moof(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1102 if (!c->has_looked_for_mfra && c->use_mfra_for > 0) {
1103 c->has_looked_for_mfra = 1;
1106 av_log(c->fc, AV_LOG_VERBOSE, "stream has moof boxes, will look "
1108 if ((ret = mov_read_mfra(c, pb)) < 0) {
1109 av_log(c->fc, AV_LOG_VERBOSE, "found a moof box but failed to "
1110 "read the mfra (may be a live ismv)\n");
1113 av_log(c->fc, AV_LOG_VERBOSE, "found a moof box but stream is not "
1114 "seekable, can not look for mfra\n");
1117 c->fragment.moof_offset = c->fragment.implicit_offset = avio_tell(pb) - 8;
1118 av_log(c->fc, AV_LOG_TRACE, "moof offset %"PRIx64"\n", c->fragment.moof_offset);
1119 return mov_read_default(c, pb, atom);
1122 static void mov_metadata_creation_time(AVDictionary **metadata, int64_t time)
1126 struct tm *ptm, tmbuf;
1128 if(time >= 2082844800)
1129 time -= 2082844800; /* seconds between 1904-01-01 and Epoch */
1131 ptm = gmtime_r(&timet, &tmbuf);
1133 if (strftime(buffer, sizeof(buffer), "%Y-%m-%d %H:%M:%S", ptm))
1134 av_dict_set(metadata, "creation_time", buffer, 0);
1138 static int mov_read_mdhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1141 MOVStreamContext *sc;
1143 char language[4] = {0};
1145 int64_t creation_time;
1147 if (c->fc->nb_streams < 1)
1149 st = c->fc->streams[c->fc->nb_streams-1];
1152 if (sc->time_scale) {
1153 av_log(c->fc, AV_LOG_ERROR, "Multiple mdhd?\n");
1154 return AVERROR_INVALIDDATA;
1157 version = avio_r8(pb);
1159 avpriv_request_sample(c->fc, "Version %d", version);
1160 return AVERROR_PATCHWELCOME;
1162 avio_rb24(pb); /* flags */
1164 creation_time = avio_rb64(pb);
1167 creation_time = avio_rb32(pb);
1168 avio_rb32(pb); /* modification time */
1170 mov_metadata_creation_time(&st->metadata, creation_time);
1172 sc->time_scale = avio_rb32(pb);
1173 st->duration = (version == 1) ? avio_rb64(pb) : avio_rb32(pb); /* duration */
1175 lang = avio_rb16(pb); /* language */
1176 if (ff_mov_lang_to_iso639(lang, language))
1177 av_dict_set(&st->metadata, "language", language, 0);
1178 avio_rb16(pb); /* quality */
1183 static int mov_read_mvhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1185 int64_t creation_time;
1186 int version = avio_r8(pb); /* version */
1187 avio_rb24(pb); /* flags */
1190 creation_time = avio_rb64(pb);
1193 creation_time = avio_rb32(pb);
1194 avio_rb32(pb); /* modification time */
1196 mov_metadata_creation_time(&c->fc->metadata, creation_time);
1197 c->time_scale = avio_rb32(pb); /* time scale */
1199 av_log(c->fc, AV_LOG_TRACE, "time scale = %i\n", c->time_scale);
1201 c->duration = (version == 1) ? avio_rb64(pb) : avio_rb32(pb); /* duration */
1202 // set the AVCodecContext duration because the duration of individual tracks
1203 // may be inaccurate
1204 if (c->time_scale > 0 && !c->trex_data)
1205 c->fc->duration = av_rescale(c->duration, AV_TIME_BASE, c->time_scale);
1206 avio_rb32(pb); /* preferred scale */
1208 avio_rb16(pb); /* preferred volume */
1210 avio_skip(pb, 10); /* reserved */
1212 avio_skip(pb, 36); /* display matrix */
1214 avio_rb32(pb); /* preview time */
1215 avio_rb32(pb); /* preview duration */
1216 avio_rb32(pb); /* poster time */
1217 avio_rb32(pb); /* selection time */
1218 avio_rb32(pb); /* selection duration */
1219 avio_rb32(pb); /* current time */
1220 avio_rb32(pb); /* next track ID */
1225 static int mov_read_enda(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1230 if (c->fc->nb_streams < 1)
1232 st = c->fc->streams[c->fc->nb_streams-1];
1234 little_endian = avio_rb16(pb) & 0xFF;
1235 av_log(c->fc, AV_LOG_TRACE, "enda %d\n", little_endian);
1236 if (little_endian == 1) {
1237 switch (st->codecpar->codec_id) {
1238 case AV_CODEC_ID_PCM_S24BE:
1239 st->codecpar->codec_id = AV_CODEC_ID_PCM_S24LE;
1241 case AV_CODEC_ID_PCM_S32BE:
1242 st->codecpar->codec_id = AV_CODEC_ID_PCM_S32LE;
1244 case AV_CODEC_ID_PCM_F32BE:
1245 st->codecpar->codec_id = AV_CODEC_ID_PCM_F32LE;
1247 case AV_CODEC_ID_PCM_F64BE:
1248 st->codecpar->codec_id = AV_CODEC_ID_PCM_F64LE;
1257 static int mov_read_colr(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1260 char color_parameter_type[5] = { 0 };
1261 uint16_t color_primaries, color_trc, color_matrix;
1264 if (c->fc->nb_streams < 1)
1266 st = c->fc->streams[c->fc->nb_streams - 1];
1268 ret = ffio_read_size(pb, color_parameter_type, 4);
1271 if (strncmp(color_parameter_type, "nclx", 4) &&
1272 strncmp(color_parameter_type, "nclc", 4)) {
1273 av_log(c->fc, AV_LOG_WARNING, "unsupported color_parameter_type %s\n",
1274 color_parameter_type);
1278 color_primaries = avio_rb16(pb);
1279 color_trc = avio_rb16(pb);
1280 color_matrix = avio_rb16(pb);
1282 av_log(c->fc, AV_LOG_TRACE,
1283 "%s: pri %d trc %d matrix %d",
1284 color_parameter_type, color_primaries, color_trc, color_matrix);
1286 if (!strncmp(color_parameter_type, "nclx", 4)) {
1287 uint8_t color_range = avio_r8(pb) >> 7;
1288 av_log(c->fc, AV_LOG_TRACE, " full %"PRIu8"", color_range);
1290 st->codecpar->color_range = AVCOL_RANGE_JPEG;
1292 st->codecpar->color_range = AVCOL_RANGE_MPEG;
1293 /* 14496-12 references JPEG XR specs (rather than the more complete
1294 * 23001-8) so some adjusting is required */
1295 if (color_primaries >= AVCOL_PRI_FILM)
1296 color_primaries = AVCOL_PRI_UNSPECIFIED;
1297 if ((color_trc >= AVCOL_TRC_LINEAR &&
1298 color_trc <= AVCOL_TRC_LOG_SQRT) ||
1299 color_trc >= AVCOL_TRC_BT2020_10)
1300 color_trc = AVCOL_TRC_UNSPECIFIED;
1301 if (color_matrix >= AVCOL_SPC_BT2020_NCL)
1302 color_matrix = AVCOL_SPC_UNSPECIFIED;
1303 st->codecpar->color_primaries = color_primaries;
1304 st->codecpar->color_trc = color_trc;
1305 st->codecpar->color_space = color_matrix;
1306 } else if (!strncmp(color_parameter_type, "nclc", 4)) {
1307 /* color primaries, Table 4-4 */
1308 switch (color_primaries) {
1309 case 1: st->codecpar->color_primaries = AVCOL_PRI_BT709; break;
1310 case 5: st->codecpar->color_primaries = AVCOL_PRI_SMPTE170M; break;
1311 case 6: st->codecpar->color_primaries = AVCOL_PRI_SMPTE240M; break;
1313 /* color transfer, Table 4-5 */
1314 switch (color_trc) {
1315 case 1: st->codecpar->color_trc = AVCOL_TRC_BT709; break;
1316 case 7: st->codecpar->color_trc = AVCOL_TRC_SMPTE240M; break;
1318 /* color matrix, Table 4-6 */
1319 switch (color_matrix) {
1320 case 1: st->codecpar->color_space = AVCOL_SPC_BT709; break;
1321 case 6: st->codecpar->color_space = AVCOL_SPC_BT470BG; break;
1322 case 7: st->codecpar->color_space = AVCOL_SPC_SMPTE240M; break;
1325 av_log(c->fc, AV_LOG_TRACE, "\n");
1330 static int mov_read_fiel(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1333 unsigned mov_field_order;
1334 enum AVFieldOrder decoded_field_order = AV_FIELD_UNKNOWN;
1336 if (c->fc->nb_streams < 1) // will happen with jp2 files
1338 st = c->fc->streams[c->fc->nb_streams-1];
1340 return AVERROR_INVALIDDATA;
1341 mov_field_order = avio_rb16(pb);
1342 if ((mov_field_order & 0xFF00) == 0x0100)
1343 decoded_field_order = AV_FIELD_PROGRESSIVE;
1344 else if ((mov_field_order & 0xFF00) == 0x0200) {
1345 switch (mov_field_order & 0xFF) {
1346 case 0x01: decoded_field_order = AV_FIELD_TT;
1348 case 0x06: decoded_field_order = AV_FIELD_BB;
1350 case 0x09: decoded_field_order = AV_FIELD_TB;
1352 case 0x0E: decoded_field_order = AV_FIELD_BT;
1356 if (decoded_field_order == AV_FIELD_UNKNOWN && mov_field_order) {
1357 av_log(NULL, AV_LOG_ERROR, "Unknown MOV field order 0x%04x\n", mov_field_order);
1359 st->codecpar->field_order = decoded_field_order;
1364 static int mov_realloc_extradata(AVCodecParameters *par, MOVAtom atom)
1367 uint64_t size = (uint64_t)par->extradata_size + atom.size + 8 + AV_INPUT_BUFFER_PADDING_SIZE;
1368 if (size > INT_MAX || (uint64_t)atom.size > INT_MAX)
1369 return AVERROR_INVALIDDATA;
1370 if ((err = av_reallocp(&par->extradata, size)) < 0) {
1371 par->extradata_size = 0;
1374 par->extradata_size = size - AV_INPUT_BUFFER_PADDING_SIZE;
1378 /* Read a whole atom into the extradata return the size of the atom read, possibly truncated if != atom.size */
1379 static int64_t mov_read_atom_into_extradata(MOVContext *c, AVIOContext *pb, MOVAtom atom,
1380 AVCodecParameters *par, uint8_t *buf)
1382 int64_t result = atom.size;
1385 AV_WB32(buf , atom.size + 8);
1386 AV_WL32(buf + 4, atom.type);
1387 err = ffio_read_size(pb, buf + 8, atom.size);
1389 par->extradata_size -= atom.size;
1391 } else if (err < atom.size) {
1392 av_log(c->fc, AV_LOG_WARNING, "truncated extradata\n");
1393 par->extradata_size -= atom.size - err;
1396 memset(buf + 8 + err, 0, AV_INPUT_BUFFER_PADDING_SIZE);
1400 /* FIXME modify qdm2/svq3/h264 decoders to take full atom as extradata */
1401 static int mov_read_extradata(MOVContext *c, AVIOContext *pb, MOVAtom atom,
1402 enum AVCodecID codec_id)
1405 uint64_t original_size;
1408 if (c->fc->nb_streams < 1) // will happen with jp2 files
1410 st = c->fc->streams[c->fc->nb_streams-1];
1412 if (st->codecpar->codec_id != codec_id)
1413 return 0; /* unexpected codec_id - don't mess with extradata */
1415 original_size = st->codecpar->extradata_size;
1416 err = mov_realloc_extradata(st->codecpar, atom);
1420 err = mov_read_atom_into_extradata(c, pb, atom, st->codecpar, st->codecpar->extradata + original_size);
1423 return 0; // Note: this is the original behavior to ignore truncation.
1426 /* wrapper functions for reading ALAC/AVS/MJPEG/MJPEG2000 extradata atoms only for those codecs */
1427 static int mov_read_alac(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1429 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_ALAC);
1432 static int mov_read_avss(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1434 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_AVS);
1437 static int mov_read_jp2h(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1439 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_JPEG2000);
1442 static int mov_read_dpxe(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1444 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_R10K);
1447 static int mov_read_avid(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1449 int ret = mov_read_extradata(c, pb, atom, AV_CODEC_ID_AVUI);
1451 ret = mov_read_extradata(c, pb, atom, AV_CODEC_ID_DNXHD);
1455 static int mov_read_targa_y216(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1457 int ret = mov_read_extradata(c, pb, atom, AV_CODEC_ID_TARGA_Y216);
1459 if (!ret && c->fc->nb_streams >= 1) {
1460 AVCodecParameters *par = c->fc->streams[c->fc->nb_streams-1]->codecpar;
1461 if (par->extradata_size >= 40) {
1462 par->height = AV_RB16(&par->extradata[36]);
1463 par->width = AV_RB16(&par->extradata[38]);
1469 static int mov_read_ares(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1471 if (c->fc->nb_streams >= 1) {
1472 AVCodecParameters *par = c->fc->streams[c->fc->nb_streams-1]->codecpar;
1473 if (par->codec_tag == MKTAG('A', 'V', 'i', 'n') &&
1474 par->codec_id == AV_CODEC_ID_H264 &&
1477 /* For AVID AVCI50, force width of 1440 to be able to select the correct SPS and PPS */
1478 if (avio_rb16(pb) == 0xd4d)
1481 } else if (par->codec_tag == MKTAG('A', 'V', 'd', '1') &&
1485 num = avio_rb32(pb);
1486 den = avio_rb32(pb);
1487 if (num <= 0 || den <= 0)
1489 switch (avio_rb32(pb)) {
1491 if (den >= INT_MAX / 2)
1495 c->fc->streams[c->fc->nb_streams-1]->display_aspect_ratio.num = num;
1496 c->fc->streams[c->fc->nb_streams-1]->display_aspect_ratio.den = den;
1503 return mov_read_avid(c, pb, atom);
1506 static int mov_read_aclr(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1510 uint64_t original_size;
1511 if (c->fc->nb_streams >= 1) {
1512 AVCodecParameters *par = c->fc->streams[c->fc->nb_streams-1]->codecpar;
1513 if (par->codec_id == AV_CODEC_ID_H264)
1515 if (atom.size == 16) {
1516 original_size = par->extradata_size;
1517 ret = mov_realloc_extradata(par, atom);
1519 length = mov_read_atom_into_extradata(c, pb, atom, par, par->extradata + original_size);
1520 if (length == atom.size) {
1521 const uint8_t range_value = par->extradata[original_size + 19];
1522 switch (range_value) {
1524 par->color_range = AVCOL_RANGE_MPEG;
1527 par->color_range = AVCOL_RANGE_JPEG;
1530 av_log(c, AV_LOG_WARNING, "ignored unknown aclr value (%d)\n", range_value);
1533 ff_dlog(c, "color_range: %d\n", par->color_range);
1535 /* For some reason the whole atom was not added to the extradata */
1536 av_log(c, AV_LOG_ERROR, "aclr not decoded - incomplete atom\n");
1539 av_log(c, AV_LOG_ERROR, "aclr not decoded - unable to add atom to extradata\n");
1542 av_log(c, AV_LOG_WARNING, "aclr not decoded - unexpected size %"PRId64"\n", atom.size);
1549 static int mov_read_svq3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1551 return mov_read_extradata(c, pb, atom, AV_CODEC_ID_SVQ3);
1554 static int mov_read_wave(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1559 if (c->fc->nb_streams < 1)
1561 st = c->fc->streams[c->fc->nb_streams-1];
1563 if ((uint64_t)atom.size > (1<<30))
1564 return AVERROR_INVALIDDATA;
1566 if (st->codecpar->codec_id == AV_CODEC_ID_QDM2 ||
1567 st->codecpar->codec_id == AV_CODEC_ID_QDMC ||
1568 st->codecpar->codec_id == AV_CODEC_ID_SPEEX) {
1569 // pass all frma atom to codec, needed at least for QDMC and QDM2
1570 av_freep(&st->codecpar->extradata);
1571 ret = ff_get_extradata(c->fc, st->codecpar, pb, atom.size);
1574 } else if (atom.size > 8) { /* to read frma, esds atoms */
1575 if (st->codecpar->codec_id == AV_CODEC_ID_ALAC && atom.size >= 24) {
1577 ret = ffio_ensure_seekback(pb, 8);
1580 buffer = avio_rb64(pb);
1582 if ( (buffer & 0xFFFFFFFF) == MKBETAG('f','r','m','a')
1583 && buffer >> 32 <= atom.size
1584 && buffer >> 32 >= 8) {
1587 } else if (!st->codecpar->extradata_size) {
1588 #define ALAC_EXTRADATA_SIZE 36
1589 st->codecpar->extradata = av_mallocz(ALAC_EXTRADATA_SIZE + AV_INPUT_BUFFER_PADDING_SIZE);
1590 if (!st->codecpar->extradata)
1591 return AVERROR(ENOMEM);
1592 st->codecpar->extradata_size = ALAC_EXTRADATA_SIZE;
1593 AV_WB32(st->codecpar->extradata , ALAC_EXTRADATA_SIZE);
1594 AV_WB32(st->codecpar->extradata + 4, MKTAG('a','l','a','c'));
1595 AV_WB64(st->codecpar->extradata + 12, buffer);
1596 avio_read(pb, st->codecpar->extradata + 20, 16);
1597 avio_skip(pb, atom.size - 24);
1601 if ((ret = mov_read_default(c, pb, atom)) < 0)
1604 avio_skip(pb, atom.size);
1609 * This function reads atom content and puts data in extradata without tag
1610 * nor size unlike mov_read_extradata.
1612 static int mov_read_glbl(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1617 if (c->fc->nb_streams < 1)
1619 st = c->fc->streams[c->fc->nb_streams-1];
1621 if ((uint64_t)atom.size > (1<<30))
1622 return AVERROR_INVALIDDATA;
1624 if (atom.size >= 10) {
1625 // Broken files created by legacy versions of libavformat will
1626 // wrap a whole fiel atom inside of a glbl atom.
1627 unsigned size = avio_rb32(pb);
1628 unsigned type = avio_rl32(pb);
1629 avio_seek(pb, -8, SEEK_CUR);
1630 if (type == MKTAG('f','i','e','l') && size == atom.size)
1631 return mov_read_default(c, pb, atom);
1633 if (st->codecpar->extradata_size > 1 && st->codecpar->extradata) {
1634 av_log(c, AV_LOG_WARNING, "ignoring multiple glbl\n");
1637 av_freep(&st->codecpar->extradata);
1638 ret = ff_get_extradata(c->fc, st->codecpar, pb, atom.size);
1645 static int mov_read_dvc1(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1648 uint8_t profile_level;
1651 if (c->fc->nb_streams < 1)
1653 st = c->fc->streams[c->fc->nb_streams-1];
1655 if (atom.size >= (1<<28) || atom.size < 7)
1656 return AVERROR_INVALIDDATA;
1658 profile_level = avio_r8(pb);
1659 if ((profile_level & 0xf0) != 0xc0)
1662 avio_seek(pb, 6, SEEK_CUR);
1663 av_freep(&st->codecpar->extradata);
1664 ret = ff_get_extradata(c->fc, st->codecpar, pb, atom.size - 7);
1672 * An strf atom is a BITMAPINFOHEADER struct. This struct is 40 bytes itself,
1673 * but can have extradata appended at the end after the 40 bytes belonging
1676 static int mov_read_strf(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1681 if (c->fc->nb_streams < 1)
1683 if (atom.size <= 40)
1685 st = c->fc->streams[c->fc->nb_streams-1];
1687 if ((uint64_t)atom.size > (1<<30))
1688 return AVERROR_INVALIDDATA;
1691 av_freep(&st->codecpar->extradata);
1692 ret = ff_get_extradata(c->fc, st->codecpar, pb, atom.size - 40);
1699 static int mov_read_stco(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1702 MOVStreamContext *sc;
1703 unsigned int i, entries;
1705 if (c->fc->nb_streams < 1)
1707 st = c->fc->streams[c->fc->nb_streams-1];
1710 avio_r8(pb); /* version */
1711 avio_rb24(pb); /* flags */
1713 entries = avio_rb32(pb);
1718 if (sc->chunk_offsets)
1719 av_log(c->fc, AV_LOG_WARNING, "Duplicated STCO atom\n");
1720 av_free(sc->chunk_offsets);
1721 sc->chunk_count = 0;
1722 sc->chunk_offsets = av_malloc_array(entries, sizeof(*sc->chunk_offsets));
1723 if (!sc->chunk_offsets)
1724 return AVERROR(ENOMEM);
1725 sc->chunk_count = entries;
1727 if (atom.type == MKTAG('s','t','c','o'))
1728 for (i = 0; i < entries && !pb->eof_reached; i++)
1729 sc->chunk_offsets[i] = avio_rb32(pb);
1730 else if (atom.type == MKTAG('c','o','6','4'))
1731 for (i = 0; i < entries && !pb->eof_reached; i++)
1732 sc->chunk_offsets[i] = avio_rb64(pb);
1734 return AVERROR_INVALIDDATA;
1736 sc->chunk_count = i;
1738 if (pb->eof_reached)
1745 * Compute codec id for 'lpcm' tag.
1746 * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
1748 enum AVCodecID ff_mov_get_lpcm_codec_id(int bps, int flags)
1755 return ff_get_pcm_codec_id(bps, flags & 1, flags & 2, flags & 4 ? -1 : 0);
1758 static int mov_codec_id(AVStream *st, uint32_t format)
1760 int id = ff_codec_get_id(ff_codec_movaudio_tags, format);
1763 ((format & 0xFFFF) == 'm' + ('s' << 8) ||
1764 (format & 0xFFFF) == 'T' + ('S' << 8)))
1765 id = ff_codec_get_id(ff_codec_wav_tags, av_bswap32(format) & 0xFFFF);
1767 if (st->codecpar->codec_type != AVMEDIA_TYPE_VIDEO && id > 0) {
1768 st->codecpar->codec_type = AVMEDIA_TYPE_AUDIO;
1769 } else if (st->codecpar->codec_type != AVMEDIA_TYPE_AUDIO &&
1770 /* skip old asf mpeg4 tag */
1771 format && format != MKTAG('m','p','4','s')) {
1772 id = ff_codec_get_id(ff_codec_movvideo_tags, format);
1774 id = ff_codec_get_id(ff_codec_bmp_tags, format);
1776 st->codecpar->codec_type = AVMEDIA_TYPE_VIDEO;
1777 else if (st->codecpar->codec_type == AVMEDIA_TYPE_DATA ||
1778 (st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE &&
1779 st->codecpar->codec_id == AV_CODEC_ID_NONE)) {
1780 id = ff_codec_get_id(ff_codec_movsubtitle_tags, format);
1782 st->codecpar->codec_type = AVMEDIA_TYPE_SUBTITLE;
1786 st->codecpar->codec_tag = format;
1791 static void mov_parse_stsd_video(MOVContext *c, AVIOContext *pb,
1792 AVStream *st, MOVStreamContext *sc)
1794 uint8_t codec_name[32];
1798 /* The first 16 bytes of the video sample description are already
1799 * read in ff_mov_read_stsd_entries() */
1800 stsd_start = avio_tell(pb) - 16;
1802 avio_rb16(pb); /* version */
1803 avio_rb16(pb); /* revision level */
1804 avio_rb32(pb); /* vendor */
1805 avio_rb32(pb); /* temporal quality */
1806 avio_rb32(pb); /* spatial quality */
1808 st->codecpar->width = avio_rb16(pb); /* width */
1809 st->codecpar->height = avio_rb16(pb); /* height */
1811 avio_rb32(pb); /* horiz resolution */
1812 avio_rb32(pb); /* vert resolution */
1813 avio_rb32(pb); /* data size, always 0 */
1814 avio_rb16(pb); /* frames per samples */
1816 len = avio_r8(pb); /* codec name, pascal string */
1819 mov_read_mac_string(c, pb, len, codec_name, sizeof(codec_name));
1821 avio_skip(pb, 31 - len);
1824 av_dict_set(&st->metadata, "encoder", codec_name, 0);
1826 /* codec_tag YV12 triggers an UV swap in rawdec.c */
1827 if (!memcmp(codec_name, "Planar Y'CbCr 8-bit 4:2:0", 25)) {
1828 st->codecpar->codec_tag = MKTAG('I', '4', '2', '0');
1829 st->codecpar->width &= ~1;
1830 st->codecpar->height &= ~1;
1832 /* Flash Media Server uses tag H263 with Sorenson Spark */
1833 if (st->codecpar->codec_tag == MKTAG('H','2','6','3') &&
1834 !memcmp(codec_name, "Sorenson H263", 13))
1835 st->codecpar->codec_id = AV_CODEC_ID_FLV1;
1837 st->codecpar->bits_per_coded_sample = avio_rb16(pb); /* depth */
1839 avio_seek(pb, stsd_start, SEEK_SET);
1841 if (ff_get_qtpalette(st->codecpar->codec_id, pb, sc->palette)) {
1842 st->codecpar->bits_per_coded_sample &= 0x1F;
1843 sc->has_palette = 1;
1847 static void mov_parse_stsd_audio(MOVContext *c, AVIOContext *pb,
1848 AVStream *st, MOVStreamContext *sc)
1850 int bits_per_sample, flags;
1851 uint16_t version = avio_rb16(pb);
1852 AVDictionaryEntry *compatible_brands = av_dict_get(c->fc->metadata, "compatible_brands", NULL, AV_DICT_MATCH_CASE);
1854 avio_rb16(pb); /* revision level */
1855 avio_rb32(pb); /* vendor */
1857 st->codecpar->channels = avio_rb16(pb); /* channel count */
1858 st->codecpar->bits_per_coded_sample = avio_rb16(pb); /* sample size */
1859 av_log(c->fc, AV_LOG_TRACE, "audio channels %d\n", st->codecpar->channels);
1861 sc->audio_cid = avio_rb16(pb);
1862 avio_rb16(pb); /* packet size = 0 */
1864 st->codecpar->sample_rate = ((avio_rb32(pb) >> 16));
1866 // Read QT version 1 fields. In version 0 these do not exist.
1867 av_log(c->fc, AV_LOG_TRACE, "version =%d, isom =%d\n", version, c->isom);
1869 (compatible_brands && strstr(compatible_brands->value, "qt "))) {
1872 sc->samples_per_frame = avio_rb32(pb);
1873 avio_rb32(pb); /* bytes per packet */
1874 sc->bytes_per_frame = avio_rb32(pb);
1875 avio_rb32(pb); /* bytes per sample */
1876 } else if (version == 2) {
1877 avio_rb32(pb); /* sizeof struct only */
1878 st->codecpar->sample_rate = av_int2double(avio_rb64(pb));
1879 st->codecpar->channels = avio_rb32(pb);
1880 avio_rb32(pb); /* always 0x7F000000 */
1881 st->codecpar->bits_per_coded_sample = avio_rb32(pb);
1883 flags = avio_rb32(pb); /* lpcm format specific flag */
1884 sc->bytes_per_frame = avio_rb32(pb);
1885 sc->samples_per_frame = avio_rb32(pb);
1886 if (st->codecpar->codec_tag == MKTAG('l','p','c','m'))
1887 st->codecpar->codec_id =
1888 ff_mov_get_lpcm_codec_id(st->codecpar->bits_per_coded_sample,
1891 if (version == 0 || (version == 1 && sc->audio_cid != -2)) {
1892 /* can't correctly handle variable sized packet as audio unit */
1893 switch (st->codecpar->codec_id) {
1894 case AV_CODEC_ID_MP2:
1895 case AV_CODEC_ID_MP3:
1896 st->need_parsing = AVSTREAM_PARSE_FULL;
1902 if (sc->format == 0) {
1903 if (st->codecpar->bits_per_coded_sample == 8)
1904 st->codecpar->codec_id = mov_codec_id(st, MKTAG('r','a','w',' '));
1905 else if (st->codecpar->bits_per_coded_sample == 16)
1906 st->codecpar->codec_id = mov_codec_id(st, MKTAG('t','w','o','s'));
1909 switch (st->codecpar->codec_id) {
1910 case AV_CODEC_ID_PCM_S8:
1911 case AV_CODEC_ID_PCM_U8:
1912 if (st->codecpar->bits_per_coded_sample == 16)
1913 st->codecpar->codec_id = AV_CODEC_ID_PCM_S16BE;
1915 case AV_CODEC_ID_PCM_S16LE:
1916 case AV_CODEC_ID_PCM_S16BE:
1917 if (st->codecpar->bits_per_coded_sample == 8)
1918 st->codecpar->codec_id = AV_CODEC_ID_PCM_S8;
1919 else if (st->codecpar->bits_per_coded_sample == 24)
1920 st->codecpar->codec_id =
1921 st->codecpar->codec_id == AV_CODEC_ID_PCM_S16BE ?
1922 AV_CODEC_ID_PCM_S24BE : AV_CODEC_ID_PCM_S24LE;
1923 else if (st->codecpar->bits_per_coded_sample == 32)
1924 st->codecpar->codec_id =
1925 st->codecpar->codec_id == AV_CODEC_ID_PCM_S16BE ?
1926 AV_CODEC_ID_PCM_S32BE : AV_CODEC_ID_PCM_S32LE;
1928 /* set values for old format before stsd version 1 appeared */
1929 case AV_CODEC_ID_MACE3:
1930 sc->samples_per_frame = 6;
1931 sc->bytes_per_frame = 2 * st->codecpar->channels;
1933 case AV_CODEC_ID_MACE6:
1934 sc->samples_per_frame = 6;
1935 sc->bytes_per_frame = 1 * st->codecpar->channels;
1937 case AV_CODEC_ID_ADPCM_IMA_QT:
1938 sc->samples_per_frame = 64;
1939 sc->bytes_per_frame = 34 * st->codecpar->channels;
1941 case AV_CODEC_ID_GSM:
1942 sc->samples_per_frame = 160;
1943 sc->bytes_per_frame = 33;
1949 bits_per_sample = av_get_bits_per_sample(st->codecpar->codec_id);
1950 if (bits_per_sample) {
1951 st->codecpar->bits_per_coded_sample = bits_per_sample;
1952 sc->sample_size = (bits_per_sample >> 3) * st->codecpar->channels;
1956 static void mov_parse_stsd_subtitle(MOVContext *c, AVIOContext *pb,
1957 AVStream *st, MOVStreamContext *sc,
1960 // ttxt stsd contains display flags, justification, background
1961 // color, fonts, and default styles, so fake an atom to read it
1962 MOVAtom fake_atom = { .size = size };
1963 // mp4s contains a regular esds atom
1964 if (st->codecpar->codec_tag != AV_RL32("mp4s"))
1965 mov_read_glbl(c, pb, fake_atom);
1966 st->codecpar->width = sc->width;
1967 st->codecpar->height = sc->height;
1970 static uint32_t yuv_to_rgba(uint32_t ycbcr)
1975 y = (ycbcr >> 16) & 0xFF;
1976 cr = (ycbcr >> 8) & 0xFF;
1979 b = av_clip_uint8((1164 * (y - 16) + 2018 * (cb - 128)) / 1000);
1980 g = av_clip_uint8((1164 * (y - 16) - 813 * (cr - 128) - 391 * (cb - 128)) / 1000);
1981 r = av_clip_uint8((1164 * (y - 16) + 1596 * (cr - 128) ) / 1000);
1983 return (r << 16) | (g << 8) | b;
1986 static int mov_rewrite_dvd_sub_extradata(AVStream *st)
1988 char buf[256] = {0};
1989 uint8_t *src = st->codecpar->extradata;
1992 if (st->codecpar->extradata_size != 64)
1995 if (st->codecpar->width > 0 && st->codecpar->height > 0)
1996 snprintf(buf, sizeof(buf), "size: %dx%d\n",
1997 st->codecpar->width, st->codecpar->height);
1998 av_strlcat(buf, "palette: ", sizeof(buf));
2000 for (i = 0; i < 16; i++) {
2001 uint32_t yuv = AV_RB32(src + i * 4);
2002 uint32_t rgba = yuv_to_rgba(yuv);
2004 av_strlcatf(buf, sizeof(buf), "%06"PRIx32"%s", rgba, i != 15 ? ", " : "");
2007 if (av_strlcat(buf, "\n", sizeof(buf)) >= sizeof(buf))
2010 av_freep(&st->codecpar->extradata);
2011 st->codecpar->extradata_size = 0;
2012 st->codecpar->extradata = av_mallocz(strlen(buf) + AV_INPUT_BUFFER_PADDING_SIZE);
2013 if (!st->codecpar->extradata)
2014 return AVERROR(ENOMEM);
2015 st->codecpar->extradata_size = strlen(buf);
2016 memcpy(st->codecpar->extradata, buf, st->codecpar->extradata_size);
2021 static int mov_parse_stsd_data(MOVContext *c, AVIOContext *pb,
2022 AVStream *st, MOVStreamContext *sc,
2027 if (st->codecpar->codec_tag == MKTAG('t','m','c','d')) {
2028 if ((int)size != size)
2029 return AVERROR(ENOMEM);
2031 ret = ff_get_extradata(c->fc, st->codecpar, pb, size);
2035 MOVStreamContext *tmcd_ctx = st->priv_data;
2037 val = AV_RB32(st->codecpar->extradata + 4);
2038 tmcd_ctx->tmcd_flags = val;
2039 st->avg_frame_rate.num = st->codecpar->extradata[16]; /* number of frame */
2040 st->avg_frame_rate.den = 1;
2041 #if FF_API_LAVF_AVCTX
2042 FF_DISABLE_DEPRECATION_WARNINGS
2043 st->codec->time_base = av_inv_q(st->avg_frame_rate);
2044 FF_ENABLE_DEPRECATION_WARNINGS
2046 /* adjust for per frame dur in counter mode */
2047 if (tmcd_ctx->tmcd_flags & 0x0008) {
2048 int timescale = AV_RB32(st->codecpar->extradata + 8);
2049 int framedur = AV_RB32(st->codecpar->extradata + 12);
2050 st->avg_frame_rate.num *= timescale;
2051 st->avg_frame_rate.den *= framedur;
2052 #if FF_API_LAVF_AVCTX
2053 FF_DISABLE_DEPRECATION_WARNINGS
2054 st->codec->time_base.den *= timescale;
2055 st->codec->time_base.num *= framedur;
2056 FF_ENABLE_DEPRECATION_WARNINGS
2060 uint32_t len = AV_RB32(st->codecpar->extradata + 18); /* name atom length */
2061 uint32_t format = AV_RB32(st->codecpar->extradata + 22);
2062 if (format == AV_RB32("name") && (int64_t)size >= (int64_t)len + 18) {
2063 uint16_t str_size = AV_RB16(st->codecpar->extradata + 26); /* string length */
2064 if (str_size > 0 && size >= (int)str_size + 26) {
2065 char *reel_name = av_malloc(str_size + 1);
2067 return AVERROR(ENOMEM);
2068 memcpy(reel_name, st->codecpar->extradata + 30, str_size);
2069 reel_name[str_size] = 0; /* Add null terminator */
2070 /* don't add reel_name if emtpy string */
2071 if (*reel_name == 0) {
2074 av_dict_set(&st->metadata, "reel_name", reel_name, AV_DICT_DONT_STRDUP_VAL);
2081 /* other codec type, just skip (rtp, mp4s ...) */
2082 avio_skip(pb, size);
2087 static int mov_finalize_stsd_codec(MOVContext *c, AVIOContext *pb,
2088 AVStream *st, MOVStreamContext *sc)
2090 if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO &&
2091 !st->codecpar->sample_rate && sc->time_scale > 1)
2092 st->codecpar->sample_rate = sc->time_scale;
2094 /* special codec parameters handling */
2095 switch (st->codecpar->codec_id) {
2096 #if CONFIG_DV_DEMUXER
2097 case AV_CODEC_ID_DVAUDIO:
2098 c->dv_fctx = avformat_alloc_context();
2100 av_log(c->fc, AV_LOG_ERROR, "dv demux context alloc error\n");
2101 return AVERROR(ENOMEM);
2103 c->dv_demux = avpriv_dv_init_demux(c->dv_fctx);
2105 av_log(c->fc, AV_LOG_ERROR, "dv demux context init error\n");
2106 return AVERROR(ENOMEM);
2108 sc->dv_audio_container = 1;
2109 st->codecpar->codec_id = AV_CODEC_ID_PCM_S16LE;
2112 /* no ifdef since parameters are always those */
2113 case AV_CODEC_ID_QCELP:
2114 st->codecpar->channels = 1;
2115 // force sample rate for qcelp when not stored in mov
2116 if (st->codecpar->codec_tag != MKTAG('Q','c','l','p'))
2117 st->codecpar->sample_rate = 8000;
2118 // FIXME: Why is the following needed for some files?
2119 sc->samples_per_frame = 160;
2120 if (!sc->bytes_per_frame)
2121 sc->bytes_per_frame = 35;
2123 case AV_CODEC_ID_AMR_NB:
2124 st->codecpar->channels = 1;
2125 /* force sample rate for amr, stsd in 3gp does not store sample rate */
2126 st->codecpar->sample_rate = 8000;
2128 case AV_CODEC_ID_AMR_WB:
2129 st->codecpar->channels = 1;
2130 st->codecpar->sample_rate = 16000;
2132 case AV_CODEC_ID_MP2:
2133 case AV_CODEC_ID_MP3:
2134 /* force type after stsd for m1a hdlr */
2135 st->codecpar->codec_type = AVMEDIA_TYPE_AUDIO;
2137 case AV_CODEC_ID_GSM:
2138 case AV_CODEC_ID_ADPCM_MS:
2139 case AV_CODEC_ID_ADPCM_IMA_WAV:
2140 case AV_CODEC_ID_ILBC:
2141 case AV_CODEC_ID_MACE3:
2142 case AV_CODEC_ID_MACE6:
2143 case AV_CODEC_ID_QDM2:
2144 st->codecpar->block_align = sc->bytes_per_frame;
2146 case AV_CODEC_ID_ALAC:
2147 if (st->codecpar->extradata_size == 36) {
2148 st->codecpar->channels = AV_RB8 (st->codecpar->extradata + 21);
2149 st->codecpar->sample_rate = AV_RB32(st->codecpar->extradata + 32);
2152 case AV_CODEC_ID_AC3:
2153 case AV_CODEC_ID_EAC3:
2154 case AV_CODEC_ID_MPEG1VIDEO:
2155 case AV_CODEC_ID_VC1:
2156 st->need_parsing = AVSTREAM_PARSE_FULL;
2164 static int mov_skip_multiple_stsd(MOVContext *c, AVIOContext *pb,
2165 int codec_tag, int format,
2168 int video_codec_id = ff_codec_get_id(ff_codec_movvideo_tags, format);
2171 (codec_tag != format &&
2172 (c->fc->video_codec_id ? video_codec_id != c->fc->video_codec_id
2173 : codec_tag != MKTAG('j','p','e','g')))) {
2174 /* Multiple fourcc, we skip JPEG. This is not correct, we should
2175 * export it as a separate AVStream but this needs a few changes
2176 * in the MOV demuxer, patch welcome. */
2178 av_log(c->fc, AV_LOG_WARNING, "multiple fourcc not supported\n");
2179 avio_skip(pb, size);
2182 if ( codec_tag == AV_RL32("avc1") ||
2183 codec_tag == AV_RL32("hvc1") ||
2184 codec_tag == AV_RL32("hev1")
2186 av_log(c->fc, AV_LOG_WARNING, "Concatenated H.264 or H.265 might not play correctly.\n");
2191 int ff_mov_read_stsd_entries(MOVContext *c, AVIOContext *pb, int entries)
2194 MOVStreamContext *sc;
2195 int pseudo_stream_id;
2197 if (c->fc->nb_streams < 1)
2199 st = c->fc->streams[c->fc->nb_streams-1];
2202 for (pseudo_stream_id = 0;
2203 pseudo_stream_id < entries && !pb->eof_reached;
2204 pseudo_stream_id++) {
2205 //Parsing Sample description table
2207 int ret, dref_id = 1;
2208 MOVAtom a = { AV_RL32("stsd") };
2209 int64_t start_pos = avio_tell(pb);
2210 int64_t size = avio_rb32(pb); /* size */
2211 uint32_t format = avio_rl32(pb); /* data format */
2214 avio_rb32(pb); /* reserved */
2215 avio_rb16(pb); /* reserved */
2216 dref_id = avio_rb16(pb);
2217 } else if (size <= 7) {
2218 av_log(c->fc, AV_LOG_ERROR,
2219 "invalid size %"PRId64" in stsd\n", size);
2220 return AVERROR_INVALIDDATA;
2223 if (mov_skip_multiple_stsd(c, pb, st->codecpar->codec_tag, format,
2224 size - (avio_tell(pb) - start_pos)))
2227 sc->pseudo_stream_id = st->codecpar->codec_tag ? -1 : pseudo_stream_id;
2228 sc->dref_id= dref_id;
2229 sc->format = format;
2231 id = mov_codec_id(st, format);
2233 av_log(c->fc, AV_LOG_TRACE,
2234 "size=%"PRId64" 4CC= %c%c%c%c/0x%08x codec_type=%d\n", size,
2235 (format >> 0) & 0xff, (format >> 8) & 0xff, (format >> 16) & 0xff,
2236 (format >> 24) & 0xff, format, st->codecpar->codec_type);
2238 if (st->codecpar->codec_type==AVMEDIA_TYPE_VIDEO) {
2239 st->codecpar->codec_id = id;
2240 mov_parse_stsd_video(c, pb, st, sc);
2241 } else if (st->codecpar->codec_type==AVMEDIA_TYPE_AUDIO) {
2242 st->codecpar->codec_id = id;
2243 mov_parse_stsd_audio(c, pb, st, sc);
2244 } else if (st->codecpar->codec_type==AVMEDIA_TYPE_SUBTITLE){
2245 st->codecpar->codec_id = id;
2246 mov_parse_stsd_subtitle(c, pb, st, sc,
2247 size - (avio_tell(pb) - start_pos));
2249 ret = mov_parse_stsd_data(c, pb, st, sc,
2250 size - (avio_tell(pb) - start_pos));
2254 /* this will read extra atoms at the end (wave, alac, damr, avcC, hvcC, SMI ...) */
2255 a.size = size - (avio_tell(pb) - start_pos);
2257 if ((ret = mov_read_default(c, pb, a)) < 0)
2259 } else if (a.size > 0)
2260 avio_skip(pb, a.size);
2263 if (pb->eof_reached)
2266 return mov_finalize_stsd_codec(c, pb, st, sc);
2269 static int mov_read_stsd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2273 avio_r8(pb); /* version */
2274 avio_rb24(pb); /* flags */
2275 entries = avio_rb32(pb);
2277 return ff_mov_read_stsd_entries(c, pb, entries);
2280 static int mov_read_stsc(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2283 MOVStreamContext *sc;
2284 unsigned int i, entries;
2286 if (c->fc->nb_streams < 1)
2288 st = c->fc->streams[c->fc->nb_streams-1];
2291 avio_r8(pb); /* version */
2292 avio_rb24(pb); /* flags */
2294 entries = avio_rb32(pb);
2296 av_log(c->fc, AV_LOG_TRACE, "track[%i].stsc.entries = %i\n", c->fc->nb_streams-1, entries);
2301 av_log(c->fc, AV_LOG_WARNING, "Duplicated STSC atom\n");
2302 av_free(sc->stsc_data);
2304 sc->stsc_data = av_malloc_array(entries, sizeof(*sc->stsc_data));
2306 return AVERROR(ENOMEM);
2308 for (i = 0; i < entries && !pb->eof_reached; i++) {
2309 sc->stsc_data[i].first = avio_rb32(pb);
2310 sc->stsc_data[i].count = avio_rb32(pb);
2311 sc->stsc_data[i].id = avio_rb32(pb);
2316 if (pb->eof_reached)
2322 static int mov_read_stps(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2325 MOVStreamContext *sc;
2326 unsigned i, entries;
2328 if (c->fc->nb_streams < 1)
2330 st = c->fc->streams[c->fc->nb_streams-1];
2333 avio_rb32(pb); // version + flags
2335 entries = avio_rb32(pb);
2337 av_log(c->fc, AV_LOG_WARNING, "Duplicated STPS atom\n");
2338 av_free(sc->stps_data);
2340 sc->stps_data = av_malloc_array(entries, sizeof(*sc->stps_data));
2342 return AVERROR(ENOMEM);
2344 for (i = 0; i < entries && !pb->eof_reached; i++) {
2345 sc->stps_data[i] = avio_rb32(pb);
2346 //av_log(c->fc, AV_LOG_TRACE, "stps %d\n", sc->stps_data[i]);
2351 if (pb->eof_reached)
2357 static int mov_read_stss(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2360 MOVStreamContext *sc;
2361 unsigned int i, entries;
2363 if (c->fc->nb_streams < 1)
2365 st = c->fc->streams[c->fc->nb_streams-1];
2368 avio_r8(pb); /* version */
2369 avio_rb24(pb); /* flags */
2371 entries = avio_rb32(pb);
2373 av_log(c->fc, AV_LOG_TRACE, "keyframe_count = %d\n", entries);
2377 sc->keyframe_absent = 1;
2378 if (!st->need_parsing && st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)
2379 st->need_parsing = AVSTREAM_PARSE_HEADERS;
2383 av_log(c->fc, AV_LOG_WARNING, "Duplicated STSS atom\n");
2384 if (entries >= UINT_MAX / sizeof(int))
2385 return AVERROR_INVALIDDATA;
2386 av_freep(&sc->keyframes);
2387 sc->keyframe_count = 0;
2388 sc->keyframes = av_malloc_array(entries, sizeof(*sc->keyframes));
2390 return AVERROR(ENOMEM);
2392 for (i = 0; i < entries && !pb->eof_reached; i++) {
2393 sc->keyframes[i] = avio_rb32(pb);
2394 //av_log(c->fc, AV_LOG_TRACE, "keyframes[]=%d\n", sc->keyframes[i]);
2397 sc->keyframe_count = i;
2399 if (pb->eof_reached)
2405 static int mov_read_stsz(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2408 MOVStreamContext *sc;
2409 unsigned int i, entries, sample_size, field_size, num_bytes;
2414 if (c->fc->nb_streams < 1)
2416 st = c->fc->streams[c->fc->nb_streams-1];
2419 avio_r8(pb); /* version */
2420 avio_rb24(pb); /* flags */
2422 if (atom.type == MKTAG('s','t','s','z')) {
2423 sample_size = avio_rb32(pb);
2424 if (!sc->sample_size) /* do not overwrite value computed in stsd */
2425 sc->sample_size = sample_size;
2426 sc->stsz_sample_size = sample_size;
2430 avio_rb24(pb); /* reserved */
2431 field_size = avio_r8(pb);
2433 entries = avio_rb32(pb);
2435 av_log(c->fc, AV_LOG_TRACE, "sample_size = %d sample_count = %d\n", sc->sample_size, entries);
2437 sc->sample_count = entries;
2441 if (field_size != 4 && field_size != 8 && field_size != 16 && field_size != 32) {
2442 av_log(c->fc, AV_LOG_ERROR, "Invalid sample field size %d\n", field_size);
2443 return AVERROR_INVALIDDATA;
2448 if (entries >= (UINT_MAX - 4) / field_size)
2449 return AVERROR_INVALIDDATA;
2450 if (sc->sample_sizes)
2451 av_log(c->fc, AV_LOG_WARNING, "Duplicated STSZ atom\n");
2452 av_free(sc->sample_sizes);
2453 sc->sample_count = 0;
2454 sc->sample_sizes = av_malloc_array(entries, sizeof(*sc->sample_sizes));
2455 if (!sc->sample_sizes)
2456 return AVERROR(ENOMEM);
2458 num_bytes = (entries*field_size+4)>>3;
2460 buf = av_malloc(num_bytes+AV_INPUT_BUFFER_PADDING_SIZE);
2462 av_freep(&sc->sample_sizes);
2463 return AVERROR(ENOMEM);
2466 ret = ffio_read_size(pb, buf, num_bytes);
2468 av_freep(&sc->sample_sizes);
2473 init_get_bits(&gb, buf, 8*num_bytes);
2475 for (i = 0; i < entries && !pb->eof_reached; i++) {
2476 sc->sample_sizes[i] = get_bits_long(&gb, field_size);
2477 sc->data_size += sc->sample_sizes[i];
2480 sc->sample_count = i;
2484 if (pb->eof_reached)
2490 static int mov_read_stts(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2493 MOVStreamContext *sc;
2494 unsigned int i, entries;
2496 int64_t total_sample_count=0;
2498 if (c->fc->nb_streams < 1)
2500 st = c->fc->streams[c->fc->nb_streams-1];
2503 avio_r8(pb); /* version */
2504 avio_rb24(pb); /* flags */
2505 entries = avio_rb32(pb);
2507 av_log(c->fc, AV_LOG_TRACE, "track[%i].stts.entries = %i\n",
2508 c->fc->nb_streams-1, entries);
2511 av_log(c->fc, AV_LOG_WARNING, "Duplicated STTS atom\n");
2512 av_free(sc->stts_data);
2514 sc->stts_data = av_malloc_array(entries, sizeof(*sc->stts_data));
2516 return AVERROR(ENOMEM);
2518 for (i = 0; i < entries && !pb->eof_reached; i++) {
2519 int sample_duration;
2522 sample_count=avio_rb32(pb);
2523 sample_duration = avio_rb32(pb);
2525 if (sample_count < 0) {
2526 av_log(c->fc, AV_LOG_ERROR, "Invalid sample_count=%d\n", sample_count);
2527 return AVERROR_INVALIDDATA;
2529 sc->stts_data[i].count= sample_count;
2530 sc->stts_data[i].duration= sample_duration;
2532 av_log(c->fc, AV_LOG_TRACE, "sample_count=%d, sample_duration=%d\n",
2533 sample_count, sample_duration);
2537 && sample_count == 1
2538 && total_sample_count > 100
2539 && sample_duration/10 > duration / total_sample_count)
2540 sample_duration = duration / total_sample_count;
2541 duration+=(int64_t)sample_duration*sample_count;
2542 total_sample_count+=sample_count;
2547 sc->duration_for_fps += duration;
2548 sc->nb_frames_for_fps += total_sample_count;
2550 if (pb->eof_reached)
2553 st->nb_frames= total_sample_count;
2555 st->duration= duration;
2556 sc->track_end = duration;
2560 static void mov_update_dts_shift(MOVStreamContext *sc, int duration)
2563 if (duration == INT_MIN) {
2564 av_log(NULL, AV_LOG_WARNING, "mov_update_dts_shift(): dts_shift set to %d\n", INT_MAX);
2567 sc->dts_shift = FFMAX(sc->dts_shift, -duration);
2571 static int mov_read_ctts(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2574 MOVStreamContext *sc;
2575 unsigned int i, entries;
2577 if (c->fc->nb_streams < 1)
2579 st = c->fc->streams[c->fc->nb_streams-1];
2582 avio_r8(pb); /* version */
2583 avio_rb24(pb); /* flags */
2584 entries = avio_rb32(pb);
2586 av_log(c->fc, AV_LOG_TRACE, "track[%i].ctts.entries = %i\n", c->fc->nb_streams-1, entries);
2590 if (entries >= UINT_MAX / sizeof(*sc->ctts_data))
2591 return AVERROR_INVALIDDATA;
2592 av_freep(&sc->ctts_data);
2593 sc->ctts_data = av_realloc(NULL, entries * sizeof(*sc->ctts_data));
2595 return AVERROR(ENOMEM);
2597 for (i = 0; i < entries && !pb->eof_reached; i++) {
2598 int count =avio_rb32(pb);
2599 int duration =avio_rb32(pb);
2601 sc->ctts_data[i].count = count;
2602 sc->ctts_data[i].duration= duration;
2604 av_log(c->fc, AV_LOG_TRACE, "count=%d, duration=%d\n",
2607 if (FFNABS(duration) < -(1<<28) && i+2<entries) {
2608 av_log(c->fc, AV_LOG_WARNING, "CTTS invalid\n");
2609 av_freep(&sc->ctts_data);
2615 mov_update_dts_shift(sc, duration);
2620 if (pb->eof_reached)
2623 av_log(c->fc, AV_LOG_TRACE, "dts shift %d\n", sc->dts_shift);
2628 static int mov_read_sbgp(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2631 MOVStreamContext *sc;
2632 unsigned int i, entries;
2634 uint32_t grouping_type;
2636 if (c->fc->nb_streams < 1)
2638 st = c->fc->streams[c->fc->nb_streams-1];
2641 version = avio_r8(pb); /* version */
2642 avio_rb24(pb); /* flags */
2643 grouping_type = avio_rl32(pb);
2644 if (grouping_type != MKTAG( 'r','a','p',' '))
2645 return 0; /* only support 'rap ' grouping */
2647 avio_rb32(pb); /* grouping_type_parameter */
2649 entries = avio_rb32(pb);
2653 av_log(c->fc, AV_LOG_WARNING, "Duplicated SBGP atom\n");
2654 av_free(sc->rap_group);
2655 sc->rap_group_count = 0;
2656 sc->rap_group = av_malloc_array(entries, sizeof(*sc->rap_group));
2658 return AVERROR(ENOMEM);
2660 for (i = 0; i < entries && !pb->eof_reached; i++) {
2661 sc->rap_group[i].count = avio_rb32(pb); /* sample_count */
2662 sc->rap_group[i].index = avio_rb32(pb); /* group_description_index */
2665 sc->rap_group_count = i;
2667 return pb->eof_reached ? AVERROR_EOF : 0;
2670 static void mov_build_index(MOVContext *mov, AVStream *st)
2672 MOVStreamContext *sc = st->priv_data;
2673 int64_t current_offset;
2674 int64_t current_dts = 0;
2675 unsigned int stts_index = 0;
2676 unsigned int stsc_index = 0;
2677 unsigned int stss_index = 0;
2678 unsigned int stps_index = 0;
2680 uint64_t stream_size = 0;
2682 if (sc->elst_count) {
2683 int i, edit_start_index = 0, unsupported = 0;
2684 int64_t empty_duration = 0; // empty duration of the first edit list entry
2685 int64_t start_time = 0; // start time of the media
2687 for (i = 0; i < sc->elst_count; i++) {
2688 const MOVElst *e = &sc->elst_data[i];
2689 if (i == 0 && e->time == -1) {
2690 /* if empty, the first entry is the start time of the stream
2691 * relative to the presentation itself */
2692 empty_duration = e->duration;
2693 edit_start_index = 1;
2694 } else if (i == edit_start_index && e->time >= 0) {
2695 start_time = e->time;
2700 av_log(mov->fc, AV_LOG_WARNING, "multiple edit list entries, "
2701 "a/v desync might occur, patch welcome\n");
2703 /* adjust first dts according to edit list */
2704 if ((empty_duration || start_time) && mov->time_scale > 0) {
2706 empty_duration = av_rescale(empty_duration, sc->time_scale, mov->time_scale);
2707 sc->time_offset = start_time - empty_duration;
2708 current_dts = -sc->time_offset;
2709 if (sc->ctts_count>0 && sc->stts_count>0 &&
2710 sc->ctts_data[0].duration / FFMAX(sc->stts_data[0].duration, 1) > 16) {
2711 /* more than 16 frames delay, dts are likely wrong
2712 this happens with files created by iMovie */
2714 st->codecpar->video_delay = 1;
2718 if (!unsupported && st->codecpar->codec_id == AV_CODEC_ID_AAC && start_time > 0)
2719 sc->start_pad = start_time;
2722 /* only use old uncompressed audio chunk demuxing when stts specifies it */
2723 if (!(st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO &&
2724 sc->stts_count == 1 && sc->stts_data[0].duration == 1)) {
2725 unsigned int current_sample = 0;
2726 unsigned int stts_sample = 0;
2727 unsigned int sample_size;
2728 unsigned int distance = 0;
2729 unsigned int rap_group_index = 0;
2730 unsigned int rap_group_sample = 0;
2731 int64_t last_dts = 0;
2732 int64_t dts_correction = 0;
2733 int rap_group_present = sc->rap_group_count && sc->rap_group;
2734 int key_off = (sc->keyframe_count && sc->keyframes[0] > 0) || (sc->stps_count && sc->stps_data[0] > 0);
2736 current_dts -= sc->dts_shift;
2737 last_dts = current_dts;
2739 if (!sc->sample_count || st->nb_index_entries)
2741 if (sc->sample_count >= UINT_MAX / sizeof(*st->index_entries) - st->nb_index_entries)
2743 if (av_reallocp_array(&st->index_entries,
2744 st->nb_index_entries + sc->sample_count,
2745 sizeof(*st->index_entries)) < 0) {
2746 st->nb_index_entries = 0;
2749 st->index_entries_allocated_size = (st->nb_index_entries + sc->sample_count) * sizeof(*st->index_entries);
2751 for (i = 0; i < sc->chunk_count; i++) {
2752 int64_t next_offset = i+1 < sc->chunk_count ? sc->chunk_offsets[i+1] : INT64_MAX;
2753 current_offset = sc->chunk_offsets[i];
2754 while (stsc_index + 1 < sc->stsc_count &&
2755 i + 1 == sc->stsc_data[stsc_index + 1].first)
2758 if (next_offset > current_offset && sc->sample_size>0 && sc->sample_size < sc->stsz_sample_size &&
2759 sc->stsc_data[stsc_index].count * (int64_t)sc->stsz_sample_size > next_offset - current_offset) {
2760 av_log(mov->fc, AV_LOG_WARNING, "STSZ sample size %d invalid (too large), ignoring\n", sc->stsz_sample_size);
2761 sc->stsz_sample_size = sc->sample_size;
2763 if (sc->stsz_sample_size>0 && sc->stsz_sample_size < sc->sample_size) {
2764 av_log(mov->fc, AV_LOG_WARNING, "STSZ sample size %d invalid (too small), ignoring\n", sc->stsz_sample_size);
2765 sc->stsz_sample_size = sc->sample_size;
2768 for (j = 0; j < sc->stsc_data[stsc_index].count; j++) {
2770 if (current_sample >= sc->sample_count) {
2771 av_log(mov->fc, AV_LOG_ERROR, "wrong sample count\n");
2775 if (!sc->keyframe_absent && (!sc->keyframe_count || current_sample+key_off == sc->keyframes[stss_index])) {
2777 if (stss_index + 1 < sc->keyframe_count)
2779 } else if (sc->stps_count && current_sample+key_off == sc->stps_data[stps_index]) {
2781 if (stps_index + 1 < sc->stps_count)
2784 if (rap_group_present && rap_group_index < sc->rap_group_count) {
2785 if (sc->rap_group[rap_group_index].index > 0)
2787 if (++rap_group_sample == sc->rap_group[rap_group_index].count) {
2788 rap_group_sample = 0;
2792 if (sc->keyframe_absent
2794 && !rap_group_present
2795 && (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO || (i==0 && j==0)))
2799 sample_size = sc->stsz_sample_size > 0 ? sc->stsz_sample_size : sc->sample_sizes[current_sample];
2800 if (sc->pseudo_stream_id == -1 ||
2801 sc->stsc_data[stsc_index].id - 1 == sc->pseudo_stream_id) {
2802 AVIndexEntry *e = &st->index_entries[st->nb_index_entries++];
2803 e->pos = current_offset;
2804 e->timestamp = current_dts;
2805 e->size = sample_size;
2806 e->min_distance = distance;
2807 e->flags = keyframe ? AVINDEX_KEYFRAME : 0;
2808 av_log(mov->fc, AV_LOG_TRACE, "AVIndex stream %d, sample %d, offset %"PRIx64", dts %"PRId64", "
2809 "size %d, distance %d, keyframe %d\n", st->index, current_sample,
2810 current_offset, current_dts, sample_size, distance, keyframe);
2811 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO && st->nb_index_entries < 100)
2812 ff_rfps_add_frame(mov->fc, st, current_dts);
2815 current_offset += sample_size;
2816 stream_size += sample_size;
2818 /* A negative sample duration is invalid based on the spec,
2819 * but some samples need it to correct the DTS. */
2820 if (sc->stts_data[stts_index].duration < 0) {
2821 av_log(mov->fc, AV_LOG_WARNING,
2822 "Invalid SampleDelta %d in STTS, at %d st:%d\n",
2823 sc->stts_data[stts_index].duration, stts_index,
2825 dts_correction += sc->stts_data[stts_index].duration - 1;
2826 sc->stts_data[stts_index].duration = 1;
2828 current_dts += sc->stts_data[stts_index].duration;
2829 if (!dts_correction || current_dts + dts_correction > last_dts) {
2830 current_dts += dts_correction;
2833 /* Avoid creating non-monotonous DTS */
2834 dts_correction += current_dts - last_dts - 1;
2835 current_dts = last_dts + 1;
2837 last_dts = current_dts;
2841 if (stts_index + 1 < sc->stts_count && stts_sample == sc->stts_data[stts_index].count) {
2847 if (st->duration > 0)
2848 st->codecpar->bit_rate = stream_size*8*sc->time_scale/st->duration;
2850 unsigned chunk_samples, total = 0;
2852 // compute total chunk count
2853 for (i = 0; i < sc->stsc_count; i++) {
2854 unsigned count, chunk_count;
2856 chunk_samples = sc->stsc_data[i].count;
2857 if (i != sc->stsc_count - 1 &&
2858 sc->samples_per_frame && chunk_samples % sc->samples_per_frame) {
2859 av_log(mov->fc, AV_LOG_ERROR, "error unaligned chunk\n");
2863 if (sc->samples_per_frame >= 160) { // gsm
2864 count = chunk_samples / sc->samples_per_frame;
2865 } else if (sc->samples_per_frame > 1) {
2866 unsigned samples = (1024/sc->samples_per_frame)*sc->samples_per_frame;
2867 count = (chunk_samples+samples-1) / samples;
2869 count = (chunk_samples+1023) / 1024;
2872 if (i < sc->stsc_count - 1)
2873 chunk_count = sc->stsc_data[i+1].first - sc->stsc_data[i].first;
2875 chunk_count = sc->chunk_count - (sc->stsc_data[i].first - 1);
2876 total += chunk_count * count;
2879 av_log(mov->fc, AV_LOG_TRACE, "chunk count %d\n", total);
2880 if (total >= UINT_MAX / sizeof(*st->index_entries) - st->nb_index_entries)
2882 if (av_reallocp_array(&st->index_entries,
2883 st->nb_index_entries + total,
2884 sizeof(*st->index_entries)) < 0) {
2885 st->nb_index_entries = 0;
2888 st->index_entries_allocated_size = (st->nb_index_entries + total) * sizeof(*st->index_entries);
2891 for (i = 0; i < sc->chunk_count; i++) {
2892 current_offset = sc->chunk_offsets[i];
2893 if (stsc_index + 1 < sc->stsc_count &&
2894 i + 1 == sc->stsc_data[stsc_index + 1].first)
2896 chunk_samples = sc->stsc_data[stsc_index].count;
2898 while (chunk_samples > 0) {
2900 unsigned size, samples;
2902 if (sc->samples_per_frame > 1 && !sc->bytes_per_frame) {
2903 avpriv_request_sample(mov->fc,
2904 "Zero bytes per frame, but %d samples per frame",
2905 sc->samples_per_frame);
2909 if (sc->samples_per_frame >= 160) { // gsm
2910 samples = sc->samples_per_frame;
2911 size = sc->bytes_per_frame;
2913 if (sc->samples_per_frame > 1) {
2914 samples = FFMIN((1024 / sc->samples_per_frame)*
2915 sc->samples_per_frame, chunk_samples);
2916 size = (samples / sc->samples_per_frame) * sc->bytes_per_frame;
2918 samples = FFMIN(1024, chunk_samples);
2919 size = samples * sc->sample_size;
2923 if (st->nb_index_entries >= total) {
2924 av_log(mov->fc, AV_LOG_ERROR, "wrong chunk count %d\n", total);
2927 e = &st->index_entries[st->nb_index_entries++];
2928 e->pos = current_offset;
2929 e->timestamp = current_dts;
2931 e->min_distance = 0;
2932 e->flags = AVINDEX_KEYFRAME;
2933 av_log(mov->fc, AV_LOG_TRACE, "AVIndex stream %d, chunk %d, offset %"PRIx64", dts %"PRId64", "
2934 "size %d, duration %d\n", st->index, i, current_offset, current_dts,
2937 current_offset += size;
2938 current_dts += samples;
2939 chunk_samples -= samples;
2945 static int test_same_origin(const char *src, const char *ref) {
2955 av_url_split(src_proto, sizeof(src_proto), src_auth, sizeof(src_auth), src_host, sizeof(src_host), &src_port, NULL, 0, src);
2956 av_url_split(ref_proto, sizeof(ref_proto), ref_auth, sizeof(ref_auth), ref_host, sizeof(ref_host), &ref_port, NULL, 0, ref);
2958 if (strlen(src) == 0) {
2960 } else if (strlen(src_auth) + 1 >= sizeof(src_auth) ||
2961 strlen(ref_auth) + 1 >= sizeof(ref_auth) ||
2962 strlen(src_host) + 1 >= sizeof(src_host) ||
2963 strlen(ref_host) + 1 >= sizeof(ref_host)) {
2965 } else if (strcmp(src_proto, ref_proto) ||
2966 strcmp(src_auth, ref_auth) ||
2967 strcmp(src_host, ref_host) ||
2968 src_port != ref_port) {
2974 static int mov_open_dref(MOVContext *c, AVIOContext **pb, const char *src, MOVDref *ref)
2976 /* try relative path, we do not try the absolute because it can leak information about our
2977 system to an attacker */
2978 if (ref->nlvl_to > 0 && ref->nlvl_from > 0) {
2979 char filename[1025];
2980 const char *src_path;
2983 /* find a source dir */
2984 src_path = strrchr(src, '/');
2990 /* find a next level down to target */
2991 for (i = 0, l = strlen(ref->path) - 1; l >= 0; l--)
2992 if (ref->path[l] == '/') {
2993 if (i == ref->nlvl_to - 1)
2999 /* compose filename if next level down to target was found */
3000 if (i == ref->nlvl_to - 1 && src_path - src < sizeof(filename)) {
3001 memcpy(filename, src, src_path - src);
3002 filename[src_path - src] = 0;
3004 for (i = 1; i < ref->nlvl_from; i++)
3005 av_strlcat(filename, "../", sizeof(filename));
3007 av_strlcat(filename, ref->path + l + 1, sizeof(filename));
3008 if (!c->use_absolute_path) {
3009 int same_origin = test_same_origin(src, filename);
3012 av_log(c->fc, AV_LOG_ERROR,
3013 "Reference with mismatching origin, %s not tried for security reasons, "
3014 "set demuxer option use_absolute_path to allow it anyway\n",
3016 return AVERROR(ENOENT);
3019 if(strstr(ref->path + l + 1, "..") ||
3020 strstr(ref->path + l + 1, ":") ||
3021 (ref->nlvl_from > 1 && same_origin < 0) ||
3022 (filename[0] == '/' && src_path == src))
3023 return AVERROR(ENOENT);
3026 if (strlen(filename) + 1 == sizeof(filename))
3027 return AVERROR(ENOENT);
3028 if (!c->fc->io_open(c->fc, pb, filename, AVIO_FLAG_READ, NULL))
3031 } else if (c->use_absolute_path) {
3032 av_log(c->fc, AV_LOG_WARNING, "Using absolute path on user request, "
3033 "this is a possible security issue\n");
3034 if (!c->fc->io_open(c->fc, pb, ref->path, AVIO_FLAG_READ, NULL))
3037 av_log(c->fc, AV_LOG_ERROR,
3038 "Absolute path %s not tried for security reasons, "
3039 "set demuxer option use_absolute_path to allow absolute paths\n",
3043 return AVERROR(ENOENT);
3046 static void fix_timescale(MOVContext *c, MOVStreamContext *sc)
3048 if (sc->time_scale <= 0) {
3049 av_log(c->fc, AV_LOG_WARNING, "stream %d, timescale not set\n", sc->ffindex);
3050 sc->time_scale = c->time_scale;
3051 if (sc->time_scale <= 0)
3056 static int mov_read_trak(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3059 MOVStreamContext *sc;
3062 st = avformat_new_stream(c->fc, NULL);
3063 if (!st) return AVERROR(ENOMEM);
3064 st->id = c->fc->nb_streams;
3065 sc = av_mallocz(sizeof(MOVStreamContext));
3066 if (!sc) return AVERROR(ENOMEM);
3069 st->codecpar->codec_type = AVMEDIA_TYPE_DATA;
3070 sc->ffindex = st->index;
3071 c->trak_index = st->index;
3073 if ((ret = mov_read_default(c, pb, atom)) < 0)
3079 if (sc->chunk_count && (!sc->stts_count || !sc->stsc_count ||
3080 (!sc->sample_size && !sc->sample_count))) {
3081 av_log(c->fc, AV_LOG_ERROR, "stream %d, missing mandatory atoms, broken header\n",
3086 fix_timescale(c, sc);
3088 avpriv_set_pts_info(st, 64, 1, sc->time_scale);
3090 mov_build_index(c, st);
3092 if (sc->dref_id-1 < sc->drefs_count && sc->drefs[sc->dref_id-1].path) {
3093 MOVDref *dref = &sc->drefs[sc->dref_id - 1];
3094 if (c->enable_drefs) {
3095 if (mov_open_dref(c, &sc->pb, c->fc->filename, dref) < 0)
3096 av_log(c->fc, AV_LOG_ERROR,
3097 "stream %d, error opening alias: path='%s', dir='%s', "
3098 "filename='%s', volume='%s', nlvl_from=%d, nlvl_to=%d\n",
3099 st->index, dref->path, dref->dir, dref->filename,
3100 dref->volume, dref->nlvl_from, dref->nlvl_to);
3102 av_log(c->fc, AV_LOG_WARNING,
3103 "Skipped opening external track: "
3104 "stream %d, alias: path='%s', dir='%s', "
3105 "filename='%s', volume='%s', nlvl_from=%d, nlvl_to=%d."
3106 "Set enable_drefs to allow this.\n",
3107 st->index, dref->path, dref->dir, dref->filename,
3108 dref->volume, dref->nlvl_from, dref->nlvl_to);
3112 sc->pb_is_copied = 1;
3115 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
3116 if (!st->sample_aspect_ratio.num && st->codecpar->width && st->codecpar->height &&
3117 sc->height && sc->width &&
3118 (st->codecpar->width != sc->width || st->codecpar->height != sc->height)) {
3119 st->sample_aspect_ratio = av_d2q(((double)st->codecpar->height * sc->width) /
3120 ((double)st->codecpar->width * sc->height), INT_MAX);
3123 #if FF_API_R_FRAME_RATE
3124 if (sc->stts_count == 1 || (sc->stts_count == 2 && sc->stts_data[1].count == 1))
3125 av_reduce(&st->r_frame_rate.num, &st->r_frame_rate.den,
3126 sc->time_scale, sc->stts_data[0].duration, INT_MAX);
3130 // done for ai5q, ai52, ai55, ai1q, ai12 and ai15.
3131 if (!st->codecpar->extradata_size && st->codecpar->codec_id == AV_CODEC_ID_H264 &&
3132 TAG_IS_AVCI(st->codecpar->codec_tag)) {
3133 ret = ff_generate_avci_extradata(st);
3138 switch (st->codecpar->codec_id) {
3139 #if CONFIG_H261_DECODER
3140 case AV_CODEC_ID_H261:
3142 #if CONFIG_H263_DECODER
3143 case AV_CODEC_ID_H263:
3145 #if CONFIG_MPEG4_DECODER
3146 case AV_CODEC_ID_MPEG4:
3148 st->codecpar->width = 0; /* let decoder init width/height */
3149 st->codecpar->height= 0;
3153 // If the duration of the mp3 packets is not constant, then they could need a parser
3154 if (st->codecpar->codec_id == AV_CODEC_ID_MP3
3155 && sc->stts_count > 3
3156 && sc->stts_count*10 > st->nb_frames
3157 && sc->time_scale == st->codecpar->sample_rate) {
3158 st->need_parsing = AVSTREAM_PARSE_FULL;
3160 /* Do not need those anymore. */
3161 av_freep(&sc->chunk_offsets);
3162 av_freep(&sc->stsc_data);
3163 av_freep(&sc->sample_sizes);
3164 av_freep(&sc->keyframes);
3165 av_freep(&sc->stts_data);
3166 av_freep(&sc->stps_data);
3167 av_freep(&sc->elst_data);
3168 av_freep(&sc->rap_group);
3173 static int mov_read_ilst(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3176 c->itunes_metadata = 1;
3177 ret = mov_read_default(c, pb, atom);
3178 c->itunes_metadata = 0;
3182 static int mov_read_keys(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3191 count = avio_rb32(pb);
3192 if (count > UINT_MAX / sizeof(*c->meta_keys)) {
3193 av_log(c->fc, AV_LOG_ERROR,
3194 "The 'keys' atom with the invalid key count: %d\n", count);
3195 return AVERROR_INVALIDDATA;
3198 c->meta_keys_count = count + 1;
3199 c->meta_keys = av_mallocz(c->meta_keys_count * sizeof(*c->meta_keys));
3201 return AVERROR(ENOMEM);
3203 for (i = 1; i <= count; ++i) {
3204 uint32_t key_size = avio_rb32(pb);
3205 uint32_t type = avio_rl32(pb);
3207 av_log(c->fc, AV_LOG_ERROR,
3208 "The key# %d in meta has invalid size: %d\n", i, key_size);
3209 return AVERROR_INVALIDDATA;
3212 if (type != MKTAG('m','d','t','a')) {
3213 avio_skip(pb, key_size);
3215 c->meta_keys[i] = av_mallocz(key_size + 1);
3216 if (!c->meta_keys[i])
3217 return AVERROR(ENOMEM);
3218 avio_read(pb, c->meta_keys[i], key_size);
3224 static int mov_read_custom(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3226 int64_t end = avio_tell(pb) + atom.size;
3227 uint8_t *key = NULL, *val = NULL, *mean = NULL;
3231 MOVStreamContext *sc;
3233 if (c->fc->nb_streams < 1)
3235 st = c->fc->streams[c->fc->nb_streams-1];
3238 for (i = 0; i < 3; i++) {
3242 if (end - avio_tell(pb) <= 12)
3245 len = avio_rb32(pb);
3246 tag = avio_rl32(pb);
3247 avio_skip(pb, 4); // flags
3249 if (len < 12 || len - 12 > end - avio_tell(pb))
3253 if (tag == MKTAG('m', 'e', 'a', 'n'))
3255 else if (tag == MKTAG('n', 'a', 'm', 'e'))
3257 else if (tag == MKTAG('d', 'a', 't', 'a') && len > 4) {
3264 *p = av_malloc(len + 1);
3267 ret = ffio_read_size(pb, *p, len);
3275 if (mean && key && val) {
3276 if (strcmp(key, "iTunSMPB") == 0) {
3277 int priming, remainder, samples;
3278 if(sscanf(val, "%*X %X %X %X", &priming, &remainder, &samples) == 3){
3279 if(priming>0 && priming<16384)
3280 sc->start_pad = priming;
3283 if (strcmp(key, "cdec") != 0) {
3284 av_dict_set(&c->fc->metadata, key, val,
3285 AV_DICT_DONT_STRDUP_KEY | AV_DICT_DONT_STRDUP_VAL);
3289 av_log(c->fc, AV_LOG_VERBOSE,
3290 "Unhandled or malformed custom metadata of size %"PRId64"\n", atom.size);
3293 avio_seek(pb, end, SEEK_SET);
3300 static int mov_read_meta(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3302 while (atom.size > 8) {
3303 uint32_t tag = avio_rl32(pb);
3305 if (tag == MKTAG('h','d','l','r')) {
3306 avio_seek(pb, -8, SEEK_CUR);
3308 return mov_read_default(c, pb, atom);
3314 static int mov_read_tkhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3319 int display_matrix[3][3];
3321 MOVStreamContext *sc;
3325 if (c->fc->nb_streams < 1)
3327 st = c->fc->streams[c->fc->nb_streams-1];
3330 version = avio_r8(pb);
3331 flags = avio_rb24(pb);
3332 st->disposition |= (flags & MOV_TKHD_FLAG_ENABLED) ? AV_DISPOSITION_DEFAULT : 0;
3338 avio_rb32(pb); /* creation time */
3339 avio_rb32(pb); /* modification time */
3341 st->id = (int)avio_rb32(pb); /* track id (NOT 0 !)*/
3342 avio_rb32(pb); /* reserved */
3344 /* highlevel (considering edits) duration in movie timebase */
3345 (version == 1) ? avio_rb64(pb) : avio_rb32(pb);
3346 avio_rb32(pb); /* reserved */
3347 avio_rb32(pb); /* reserved */
3349 avio_rb16(pb); /* layer */
3350 avio_rb16(pb); /* alternate group */
3351 avio_rb16(pb); /* volume */
3352 avio_rb16(pb); /* reserved */
3354 //read in the display matrix (outlined in ISO 14496-12, Section 6.2.2)
3355 // they're kept in fixed point format through all calculations
3356 // save u,v,z to store the whole matrix in the AV_PKT_DATA_DISPLAYMATRIX
3357 // side data, but the scale factor is not needed to calculate aspect ratio
3358 for (i = 0; i < 3; i++) {
3359 display_matrix[i][0] = avio_rb32(pb); // 16.16 fixed point
3360 display_matrix[i][1] = avio_rb32(pb); // 16.16 fixed point
3361 display_matrix[i][2] = avio_rb32(pb); // 2.30 fixed point
3364 width = avio_rb32(pb); // 16.16 fixed point track width
3365 height = avio_rb32(pb); // 16.16 fixed point track height
3366 sc->width = width >> 16;
3367 sc->height = height >> 16;
3369 // save the matrix and add rotate metadata when it is not the default
3371 if (display_matrix[0][0] != (1 << 16) ||
3372 display_matrix[1][1] != (1 << 16) ||
3373 display_matrix[2][2] != (1 << 30) ||
3374 display_matrix[0][1] || display_matrix[0][2] ||
3375 display_matrix[1][0] || display_matrix[1][2] ||
3376 display_matrix[2][0] || display_matrix[2][1]) {
3380 av_freep(&sc->display_matrix);
3381 sc->display_matrix = av_malloc(sizeof(int32_t) * 9);
3382 if (!sc->display_matrix)
3383 return AVERROR(ENOMEM);
3385 for (i = 0; i < 3; i++)
3386 for (j = 0; j < 3; j++)
3387 sc->display_matrix[i * 3 + j] = display_matrix[i][j];
3389 rotate = av_display_rotation_get(sc->display_matrix);
3390 if (!isnan(rotate)) {
3391 char rotate_buf[64];
3393 if (rotate < 0) // for backward compatibility
3395 snprintf(rotate_buf, sizeof(rotate_buf), "%g", rotate);
3396 av_dict_set(&st->metadata, "rotate", rotate_buf, 0);
3400 // transform the display width/height according to the matrix
3401 // to keep the same scale, use [width height 1<<16]
3402 if (width && height && sc->display_matrix) {
3403 double disp_transform[2];
3405 for (i = 0; i < 2; i++)
3406 disp_transform[i] = hypot(display_matrix[i][0], display_matrix[i][1]);
3408 if (disp_transform[0] > 0 && disp_transform[1] > 0 &&
3409 disp_transform[0] < (1<<24) && disp_transform[1] < (1<<24) &&
3410 fabs((disp_transform[0] / disp_transform[1]) - 1.0) > 0.01)
3411 st->sample_aspect_ratio = av_d2q(
3412 disp_transform[0] / disp_transform[1],
3418 static int mov_read_tfhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3420 MOVFragment *frag = &c->fragment;
3421 MOVTrackExt *trex = NULL;
3422 MOVFragmentIndex* index = NULL;
3423 int flags, track_id, i, found = 0;
3425 avio_r8(pb); /* version */
3426 flags = avio_rb24(pb);
3428 track_id = avio_rb32(pb);
3430 return AVERROR_INVALIDDATA;
3431 frag->track_id = track_id;
3432 for (i = 0; i < c->trex_count; i++)
3433 if (c->trex_data[i].track_id == frag->track_id) {
3434 trex = &c->trex_data[i];
3438 av_log(c->fc, AV_LOG_ERROR, "could not find corresponding trex\n");
3439 return AVERROR_INVALIDDATA;
3442 frag->base_data_offset = flags & MOV_TFHD_BASE_DATA_OFFSET ?
3443 avio_rb64(pb) : flags & MOV_TFHD_DEFAULT_BASE_IS_MOOF ?
3444 frag->moof_offset : frag->implicit_offset;
3445 frag->stsd_id = flags & MOV_TFHD_STSD_ID ? avio_rb32(pb) : trex->stsd_id;
3447 frag->duration = flags & MOV_TFHD_DEFAULT_DURATION ?
3448 avio_rb32(pb) : trex->duration;
3449 frag->size = flags & MOV_TFHD_DEFAULT_SIZE ?
3450 avio_rb32(pb) : trex->size;
3451 frag->flags = flags & MOV_TFHD_DEFAULT_FLAGS ?
3452 avio_rb32(pb) : trex->flags;
3453 frag->time = AV_NOPTS_VALUE;
3454 for (i = 0; i < c->fragment_index_count; i++) {
3456 MOVFragmentIndex* candidate = c->fragment_index_data[i];
3457 if (candidate->track_id == frag->track_id) {
3458 av_log(c->fc, AV_LOG_DEBUG,
3459 "found fragment index for track %u\n", frag->track_id);
3461 for (j = index->current_item; j < index->item_count; j++) {
3462 if (frag->implicit_offset == index->items[j].moof_offset) {
3463 av_log(c->fc, AV_LOG_DEBUG, "found fragment index entry "
3464 "for track %u and moof_offset %"PRId64"\n",
3465 frag->track_id, index->items[j].moof_offset);
3466 frag->time = index->items[j].time;
3467 index->current_item = j + 1;
3476 if (index && !found) {
3477 av_log(c->fc, AV_LOG_DEBUG, "track %u has a fragment index but "
3478 "it doesn't have an (in-order) entry for moof_offset "
3479 "%"PRId64"\n", frag->track_id, frag->implicit_offset);
3481 av_log(c->fc, AV_LOG_TRACE, "frag flags 0x%x\n", frag->flags);
3485 static int mov_read_chap(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3487 c->chapter_track = avio_rb32(pb);
3491 static int mov_read_trex(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3496 if ((uint64_t)c->trex_count+1 >= UINT_MAX / sizeof(*c->trex_data))
3497 return AVERROR_INVALIDDATA;
3498 if ((err = av_reallocp_array(&c->trex_data, c->trex_count + 1,
3499 sizeof(*c->trex_data))) < 0) {
3504 c->fc->duration = AV_NOPTS_VALUE; // the duration from mvhd is not representing the whole file when fragments are used.
3506 trex = &c->trex_data[c->trex_count++];
3507 avio_r8(pb); /* version */
3508 avio_rb24(pb); /* flags */
3509 trex->track_id = avio_rb32(pb);
3510 trex->stsd_id = avio_rb32(pb);
3511 trex->duration = avio_rb32(pb);
3512 trex->size = avio_rb32(pb);
3513 trex->flags = avio_rb32(pb);
3517 static int mov_read_tfdt(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3519 MOVFragment *frag = &c->fragment;
3520 AVStream *st = NULL;
3521 MOVStreamContext *sc;
3524 for (i = 0; i < c->fc->nb_streams; i++) {
3525 if (c->fc->streams[i]->id == frag->track_id) {
3526 st = c->fc->streams[i];
3531 av_log(c->fc, AV_LOG_ERROR, "could not find corresponding track id %d\n", frag->track_id);
3532 return AVERROR_INVALIDDATA;
3535 if (sc->pseudo_stream_id + 1 != frag->stsd_id)
3537 version = avio_r8(pb);
3538 avio_rb24(pb); /* flags */
3540 sc->track_end = avio_rb64(pb);
3542 sc->track_end = avio_rb32(pb);
3547 static int mov_read_trun(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3549 MOVFragment *frag = &c->fragment;
3550 AVStream *st = NULL;
3551 MOVStreamContext *sc;
3555 int data_offset = 0;
3556 unsigned entries, first_sample_flags = frag->flags;
3557 int flags, distance, i, err;
3559 for (i = 0; i < c->fc->nb_streams; i++) {
3560 if (c->fc->streams[i]->id == frag->track_id) {
3561 st = c->fc->streams[i];
3566 av_log(c->fc, AV_LOG_ERROR, "could not find corresponding track id %d\n", frag->track_id);
3567 return AVERROR_INVALIDDATA;
3570 if (sc->pseudo_stream_id+1 != frag->stsd_id && sc->pseudo_stream_id != -1)
3572 avio_r8(pb); /* version */
3573 flags = avio_rb24(pb);
3574 entries = avio_rb32(pb);
3575 av_log(c->fc, AV_LOG_TRACE, "flags 0x%x entries %d\n", flags, entries);
3577 /* Always assume the presence of composition time offsets.
3578 * Without this assumption, for instance, we cannot deal with a track in fragmented movies that meet the following.
3579 * 1) in the initial movie, there are no samples.
3580 * 2) in the first movie fragment, there is only one sample without composition time offset.
3581 * 3) in the subsequent movie fragments, there are samples with composition time offset. */
3582 if (!sc->ctts_count && sc->sample_count)
3584 /* Complement ctts table if moov atom doesn't have ctts atom. */
3585 ctts_data = av_realloc(NULL, sizeof(*sc->ctts_data));
3587 return AVERROR(ENOMEM);
3588 sc->ctts_data = ctts_data;
3589 sc->ctts_data[sc->ctts_count].count = sc->sample_count;
3590 sc->ctts_data[sc->ctts_count].duration = 0;
3593 if ((uint64_t)entries+sc->ctts_count >= UINT_MAX/sizeof(*sc->ctts_data))
3594 return AVERROR_INVALIDDATA;
3595 if ((err = av_reallocp_array(&sc->ctts_data, entries + sc->ctts_count,
3596 sizeof(*sc->ctts_data))) < 0) {
3600 if (flags & MOV_TRUN_DATA_OFFSET) data_offset = avio_rb32(pb);
3601 if (flags & MOV_TRUN_FIRST_SAMPLE_FLAGS) first_sample_flags = avio_rb32(pb);
3602 dts = sc->track_end - sc->time_offset;
3603 offset = frag->base_data_offset + data_offset;
3605 av_log(c->fc, AV_LOG_TRACE, "first sample flags 0x%x\n", first_sample_flags);
3606 for (i = 0; i < entries && !pb->eof_reached; i++) {
3607 unsigned sample_size = frag->size;
3608 int sample_flags = i ? frag->flags : first_sample_flags;
3609 unsigned sample_duration = frag->duration;
3612 if (flags & MOV_TRUN_SAMPLE_DURATION) sample_duration = avio_rb32(pb);
3613 if (flags & MOV_TRUN_SAMPLE_SIZE) sample_size = avio_rb32(pb);
3614 if (flags & MOV_TRUN_SAMPLE_FLAGS) sample_flags = avio_rb32(pb);
3615 sc->ctts_data[sc->ctts_count].count = 1;
3616 sc->ctts_data[sc->ctts_count].duration = (flags & MOV_TRUN_SAMPLE_CTS) ?
3618 mov_update_dts_shift(sc, sc->ctts_data[sc->ctts_count].duration);
3619 if (frag->time != AV_NOPTS_VALUE) {
3620 if (c->use_mfra_for == FF_MOV_FLAG_MFRA_PTS) {
3621 int64_t pts = frag->time;
3622 av_log(c->fc, AV_LOG_DEBUG, "found frag time %"PRId64
3623 " sc->dts_shift %d ctts.duration %d"
3624 " sc->time_offset %"PRId64" flags & MOV_TRUN_SAMPLE_CTS %d\n", pts,
3625 sc->dts_shift, sc->ctts_data[sc->ctts_count].duration,
3626 sc->time_offset, flags & MOV_TRUN_SAMPLE_CTS);
3627 dts = pts - sc->dts_shift;
3628 if (flags & MOV_TRUN_SAMPLE_CTS) {
3629 dts -= sc->ctts_data[sc->ctts_count].duration;
3631 dts -= sc->time_offset;
3633 av_log(c->fc, AV_LOG_DEBUG, "calculated into dts %"PRId64"\n", dts);
3635 dts = frag->time - sc->time_offset;
3636 av_log(c->fc, AV_LOG_DEBUG, "found frag time %"PRId64
3637 ", using it for dts\n", dts);
3639 frag->time = AV_NOPTS_VALUE;
3642 if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO)
3646 !(sample_flags & (MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC |
3647 MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES));
3650 err = av_add_index_entry(st, offset, dts, sample_size, distance,
3651 keyframe ? AVINDEX_KEYFRAME : 0);
3653 av_log(c->fc, AV_LOG_ERROR, "Failed to add index entry\n");
3655 av_log(c->fc, AV_LOG_TRACE, "AVIndex stream %d, sample %d, offset %"PRIx64", dts %"PRId64", "
3656 "size %d, distance %d, keyframe %d\n", st->index, sc->sample_count+i,
3657 offset, dts, sample_size, distance, keyframe);
3659 dts += sample_duration;
3660 offset += sample_size;
3661 sc->data_size += sample_size;
3662 sc->duration_for_fps += sample_duration;
3663 sc->nb_frames_for_fps ++;
3666 if (pb->eof_reached)
3669 frag->implicit_offset = offset;
3671 sc->track_end = dts + sc->time_offset;
3672 if (st->duration < sc->track_end)
3673 st->duration = sc->track_end;
3678 static int mov_read_sidx(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3680 int64_t offset = avio_tell(pb) + atom.size, pts;
3682 unsigned i, track_id;
3683 AVStream *st = NULL;
3684 MOVStreamContext *sc;
3685 MOVFragmentIndex *index = NULL;
3686 MOVFragmentIndex **tmp;
3687 AVRational timescale;
3689 version = avio_r8(pb);
3691 avpriv_request_sample(c->fc, "sidx version %u", version);
3695 avio_rb24(pb); // flags
3697 track_id = avio_rb32(pb); // Reference ID
3698 for (i = 0; i < c->fc->nb_streams; i++) {
3699 if (c->fc->streams[i]->id == track_id) {
3700 st = c->fc->streams[i];
3705 av_log(c->fc, AV_LOG_WARNING, "could not find corresponding track id %d\n", track_id);
3711 timescale = av_make_q(1, avio_rb32(pb));
3714 pts = avio_rb32(pb);
3715 offset += avio_rb32(pb);
3717 pts = avio_rb64(pb);
3718 offset += avio_rb64(pb);
3721 avio_rb16(pb); // reserved
3723 index = av_mallocz(sizeof(MOVFragmentIndex));
3725 return AVERROR(ENOMEM);
3727 index->track_id = track_id;
3729 index->item_count = avio_rb16(pb);
3730 index->items = av_mallocz_array(index->item_count, sizeof(MOVFragmentIndexItem));
3732 if (!index->items) {
3734 return AVERROR(ENOMEM);
3737 for (i = 0; i < index->item_count; i++) {
3738 uint32_t size = avio_rb32(pb);
3739 uint32_t duration = avio_rb32(pb);
3740 if (size & 0x80000000) {
3741 avpriv_request_sample(c->fc, "sidx reference_type 1");
3742 av_freep(&index->items);
3744 return AVERROR_PATCHWELCOME;
3746 avio_rb32(pb); // sap_flags
3747 index->items[i].moof_offset = offset;
3748 index->items[i].time = av_rescale_q(pts, st->time_base, timescale);
3753 st->duration = sc->track_end = pts;
3755 tmp = av_realloc_array(c->fragment_index_data,
3756 c->fragment_index_count + 1,
3757 sizeof(MOVFragmentIndex*));
3759 av_freep(&index->items);
3761 return AVERROR(ENOMEM);
3764 c->fragment_index_data = tmp;
3765 c->fragment_index_data[c->fragment_index_count++] = index;
3767 if (offset == avio_size(pb))
3768 c->fragment_index_complete = 1;
3773 /* this atom should be null (from specs), but some buggy files put the 'moov' atom inside it... */
3774 /* like the files created with Adobe Premiere 5.0, for samples see */
3775 /* http://graphics.tudelft.nl/~wouter/publications/soundtests/ */
3776 static int mov_read_wide(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3781 return 0; /* continue */
3782 if (avio_rb32(pb) != 0) { /* 0 sized mdat atom... use the 'wide' atom size */
3783 avio_skip(pb, atom.size - 4);
3786 atom.type = avio_rl32(pb);
3788 if (atom.type != MKTAG('m','d','a','t')) {
3789 avio_skip(pb, atom.size);
3792 err = mov_read_mdat(c, pb, atom);
3796 static int mov_read_cmov(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3801 uint8_t *moov_data; /* uncompressed data */
3802 long cmov_len, moov_len;
3805 avio_rb32(pb); /* dcom atom */
3806 if (avio_rl32(pb) != MKTAG('d','c','o','m'))
3807 return AVERROR_INVALIDDATA;
3808 if (avio_rl32(pb) != MKTAG('z','l','i','b')) {
3809 av_log(c->fc, AV_LOG_ERROR, "unknown compression for cmov atom !\n");
3810 return AVERROR_INVALIDDATA;
3812 avio_rb32(pb); /* cmvd atom */
3813 if (avio_rl32(pb) != MKTAG('c','m','v','d'))
3814 return AVERROR_INVALIDDATA;
3815 moov_len = avio_rb32(pb); /* uncompressed size */
3816 cmov_len = atom.size - 6 * 4;
3818 cmov_data = av_malloc(cmov_len);
3820 return AVERROR(ENOMEM);
3821 moov_data = av_malloc(moov_len);
3824 return AVERROR(ENOMEM);
3826 ret = ffio_read_size(pb, cmov_data, cmov_len);
3828 goto free_and_return;
3830 if (uncompress (moov_data, (uLongf *) &moov_len, (const Bytef *)cmov_data, cmov_len) != Z_OK)
3831 goto free_and_return;
3832 if (ffio_init_context(&ctx, moov_data, moov_len, 0, NULL, NULL, NULL, NULL) != 0)
3833 goto free_and_return;
3834 ctx.seekable = AVIO_SEEKABLE_NORMAL;
3835 atom.type = MKTAG('m','o','o','v');
3836 atom.size = moov_len;
3837 ret = mov_read_default(c, &ctx, atom);
3843 av_log(c->fc, AV_LOG_ERROR, "this file requires zlib support compiled in\n");
3844 return AVERROR(ENOSYS);
3848 /* edit list atom */
3849 static int mov_read_elst(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3851 MOVStreamContext *sc;
3852 int i, edit_count, version;
3854 if (c->fc->nb_streams < 1 || c->ignore_editlist)
3856 sc = c->fc->streams[c->fc->nb_streams-1]->priv_data;
3858 version = avio_r8(pb); /* version */
3859 avio_rb24(pb); /* flags */
3860 edit_count = avio_rb32(pb); /* entries */
3865 av_log(c->fc, AV_LOG_WARNING, "Duplicated ELST atom\n");
3866 av_free(sc->elst_data);
3868 sc->elst_data = av_malloc_array(edit_count, sizeof(*sc->elst_data));
3870 return AVERROR(ENOMEM);
3872 av_log(c->fc, AV_LOG_TRACE, "track[%i].edit_count = %i\n", c->fc->nb_streams-1, edit_count);
3873 for (i = 0; i < edit_count && !pb->eof_reached; i++) {
3874 MOVElst *e = &sc->elst_data[i];
3877 e->duration = avio_rb64(pb);
3878 e->time = avio_rb64(pb);
3880 e->duration = avio_rb32(pb); /* segment duration */
3881 e->time = (int32_t)avio_rb32(pb); /* media time */
3883 e->rate = avio_rb32(pb) / 65536.0;
3884 av_log(c->fc, AV_LOG_TRACE, "duration=%"PRId64" time=%"PRId64" rate=%f\n",
3885 e->duration, e->time, e->rate);
3892 static int mov_read_tmcd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3894 MOVStreamContext *sc;
3896 if (c->fc->nb_streams < 1)
3897 return AVERROR_INVALIDDATA;
3898 sc = c->fc->streams[c->fc->nb_streams - 1]->priv_data;
3899 sc->timecode_track = avio_rb32(pb);
3903 static int mov_read_uuid(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3907 static const uint8_t uuid_isml_manifest[] = {
3908 0xa5, 0xd4, 0x0b, 0x30, 0xe8, 0x14, 0x11, 0xdd,
3909 0xba, 0x2f, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66
3911 static const uint8_t uuid_xmp[] = {
3912 0xbe, 0x7a, 0xcf, 0xcb, 0x97, 0xa9, 0x42, 0xe8,
3913 0x9c, 0x71, 0x99, 0x94, 0x91, 0xe3, 0xaf, 0xac
3916 if (atom.size < sizeof(uuid) || atom.size == INT64_MAX)
3917 return AVERROR_INVALIDDATA;
3919 ret = avio_read(pb, uuid, sizeof(uuid));
3922 } else if (ret != sizeof(uuid)) {
3923 return AVERROR_INVALIDDATA;
3925 if (!memcmp(uuid, uuid_isml_manifest, sizeof(uuid))) {
3926 uint8_t *buffer, *ptr;
3928 size_t len = atom.size - sizeof(uuid);
3931 return AVERROR_INVALIDDATA;
3933 ret = avio_skip(pb, 4); // zeroes
3936 buffer = av_mallocz(len + 1);
3938 return AVERROR(ENOMEM);
3940 ret = avio_read(pb, buffer, len);
3944 } else if (ret != len) {
3946 return AVERROR_INVALIDDATA;
3950 while ((ptr = av_stristr(ptr, "systemBitrate=\""))) {
3951 ptr += sizeof("systemBitrate=\"") - 1;
3952 c->bitrates_count++;
3953 c->bitrates = av_realloc_f(c->bitrates, c->bitrates_count, sizeof(*c->bitrates));
3955 c->bitrates_count = 0;
3957 return AVERROR(ENOMEM);
3960 ret = strtol(ptr, &endptr, 10);
3961 if (ret < 0 || errno || *endptr != '"') {
3962 c->bitrates[c->bitrates_count - 1] = 0;
3964 c->bitrates[c->bitrates_count - 1] = ret;
3969 } else if (!memcmp(uuid, uuid_xmp, sizeof(uuid))) {
3971 size_t len = atom.size - sizeof(uuid);
3973 buffer = av_mallocz(len + 1);
3975 return AVERROR(ENOMEM);
3977 ret = avio_read(pb, buffer, len);
3981 } else if (ret != len) {
3983 return AVERROR_INVALIDDATA;
3985 if (c->export_xmp) {
3987 av_dict_set(&c->fc->metadata, "xmp", buffer, 0);
3994 static int mov_read_free(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3997 uint8_t content[16];
4002 ret = avio_read(pb, content, FFMIN(sizeof(content), atom.size));
4008 && !memcmp(content, "Anevia\x1A\x1A", 8)
4009 && c->use_mfra_for == FF_MOV_FLAG_MFRA_AUTO) {
4010 c->use_mfra_for = FF_MOV_FLAG_MFRA_PTS;
4016 static int mov_read_frma(MOVContext *c, AVIOContext *pb, MOVAtom atom)
4018 uint32_t format = avio_rl32(pb);
4019 MOVStreamContext *sc;
4023 if (c->fc->nb_streams < 1)
4025 st = c->fc->streams[c->fc->nb_streams - 1];
4030 case MKTAG('e','n','c','v'): // encrypted video
4031 case MKTAG('e','n','c','a'): // encrypted audio
4032 id = mov_codec_id(st, format);
4033 if (st->codecpar->codec_id != AV_CODEC_ID_NONE &&
4034 st->codecpar->codec_id != id) {
4035 av_log(c->fc, AV_LOG_WARNING,
4036 "ignoring 'frma' atom of '%.4s', stream has codec id %d\n",
4037 (char*)&format, st->codecpar->codec_id);
4041 st->codecpar->codec_id = id;
4042 sc->format = format;
4046 if (format != sc->format) {
4047 av_log(c->fc, AV_LOG_WARNING,
4048 "ignoring 'frma' atom of '%.4s', stream format is '%.4s'\n",
4049 (char*)&format, (char*)&sc->format);
4057 static int mov_read_senc(MOVContext *c, AVIOContext *pb, MOVAtom atom)
4060 MOVStreamContext *sc;
4061 size_t auxiliary_info_size;
4063 if (c->decryption_key_len == 0 || c->fc->nb_streams < 1)
4066 st = c->fc->streams[c->fc->nb_streams - 1];
4069 if (sc->cenc.aes_ctr) {
4070 av_log(c->fc, AV_LOG_ERROR, "duplicate senc atom\n");
4071 return AVERROR_INVALIDDATA;
4074 avio_r8(pb); /* version */
4075 sc->cenc.use_subsamples = avio_rb24(pb) & 0x02; /* flags */
4077 avio_rb32(pb); /* entries */
4079 if (atom.size < 8) {
4080 av_log(c->fc, AV_LOG_ERROR, "senc atom size %"PRId64" too small\n", atom.size);
4081 return AVERROR_INVALIDDATA;
4084 /* save the auxiliary info as is */
4085 auxiliary_info_size = atom.size - 8;
4087 sc->cenc.auxiliary_info = av_malloc(auxiliary_info_size);
4088 if (!sc->cenc.auxiliary_info) {
4089 return AVERROR(ENOMEM);
4092 sc->cenc.auxiliary_info_end = sc->cenc.auxiliary_info + auxiliary_info_size;
4094 sc->cenc.auxiliary_info_pos = sc->cenc.auxiliary_info;
4096 if (avio_read(pb, sc->cenc.auxiliary_info, auxiliary_info_size) != auxiliary_info_size) {
4097 av_log(c->fc, AV_LOG_ERROR, "failed to read the auxiliary info");
4098 return AVERROR_INVALIDDATA;
4101 /* initialize the cipher */
4102 sc->cenc.aes_ctr = av_aes_ctr_alloc();
4103 if (!sc->cenc.aes_ctr) {
4104 return AVERROR(ENOMEM);
4107 return av_aes_ctr_init(sc->cenc.aes_ctr, c->decryption_key);
4110 static int mov_read_saiz(MOVContext *c, AVIOContext *pb, MOVAtom atom)
4113 MOVStreamContext *sc;
4115 int atom_header_size;
4118 if (c->decryption_key_len == 0 || c->fc->nb_streams < 1)
4121 st = c->fc->streams[c->fc->nb_streams - 1];
4124 if (sc->cenc.auxiliary_info_sizes || sc->cenc.auxiliary_info_default_size) {
4125 av_log(c->fc, AV_LOG_ERROR, "duplicate saiz atom\n");
4126 return AVERROR_INVALIDDATA;
4129 atom_header_size = 9;
4131 avio_r8(pb); /* version */
4132 flags = avio_rb24(pb);
4134 if ((flags & 0x01) != 0) {
4135 atom_header_size += 8;
4137 avio_rb32(pb); /* info type */
4138 avio_rb32(pb); /* info type param */
4141 sc->cenc.auxiliary_info_default_size = avio_r8(pb);
4142 avio_rb32(pb); /* entries */
4144 if (atom.size <= atom_header_size) {
4148 /* save the auxiliary info sizes as is */
4149 data_size = atom.size - atom_header_size;
4151 sc->cenc.auxiliary_info_sizes = av_malloc(data_size);
4152 if (!sc->cenc.auxiliary_info_sizes) {
4153 return AVERROR(ENOMEM);
4156 sc->cenc.auxiliary_info_sizes_count = data_size;
4158 if (avio_read(pb, sc->cenc.auxiliary_info_sizes, data_size) != data_size) {
4159 av_log(c->fc, AV_LOG_ERROR, "failed to read the auxiliary info sizes");
4160 return AVERROR_INVALIDDATA;
4166 static int cenc_filter(MOVContext *c, MOVStreamContext *sc, uint8_t *input, int size)
4168 uint32_t encrypted_bytes;
4169 uint16_t subsample_count;
4170 uint16_t clear_bytes;
4171 uint8_t* input_end = input + size;
4174 if (AES_CTR_IV_SIZE > sc->cenc.auxiliary_info_end - sc->cenc.auxiliary_info_pos) {
4175 av_log(c->fc, AV_LOG_ERROR, "failed to read iv from the auxiliary info\n");
4176 return AVERROR_INVALIDDATA;
4179 av_aes_ctr_set_iv(sc->cenc.aes_ctr, sc->cenc.auxiliary_info_pos);
4180 sc->cenc.auxiliary_info_pos += AES_CTR_IV_SIZE;
4182 if (!sc->cenc.use_subsamples)
4184 /* decrypt the whole packet */
4185 av_aes_ctr_crypt(sc->cenc.aes_ctr, input, input, size);
4189 /* read the subsample count */
4190 if (sizeof(uint16_t) > sc->cenc.auxiliary_info_end - sc->cenc.auxiliary_info_pos) {
4191 av_log(c->fc, AV_LOG_ERROR, "failed to read subsample count from the auxiliary info\n");
4192 return AVERROR_INVALIDDATA;
4195 subsample_count = AV_RB16(sc->cenc.auxiliary_info_pos);
4196 sc->cenc.auxiliary_info_pos += sizeof(uint16_t);
4198 for (; subsample_count > 0; subsample_count--)
4200 if (6 > sc->cenc.auxiliary_info_end - sc->cenc.auxiliary_info_pos) {
4201 av_log(c->fc, AV_LOG_ERROR, "failed to read subsample from the auxiliary info\n");
4202 return AVERROR_INVALIDDATA;
4205 /* read the number of clear / encrypted bytes */
4206 clear_bytes = AV_RB16(sc->cenc.auxiliary_info_pos);
4207 sc->cenc.auxiliary_info_pos += sizeof(uint16_t);
4208 encrypted_bytes = AV_RB32(sc->cenc.auxiliary_info_pos);
4209 sc->cenc.auxiliary_info_pos += sizeof(uint32_t);
4211 if ((uint64_t)clear_bytes + encrypted_bytes > input_end - input) {
4212 av_log(c->fc, AV_LOG_ERROR, "subsample size exceeds the packet size left\n");
4213 return AVERROR_INVALIDDATA;
4216 /* skip the clear bytes */
4217 input += clear_bytes;
4219 /* decrypt the encrypted bytes */
4220 av_aes_ctr_crypt(sc->cenc.aes_ctr, input, input, encrypted_bytes);
4221 input += encrypted_bytes;
4224 if (input < input_end) {
4225 av_log(c->fc, AV_LOG_ERROR, "leftover packet bytes after subsample processing\n");
4226 return AVERROR_INVALIDDATA;
4232 static int mov_seek_auxiliary_info(AVFormatContext *s, MOVStreamContext *sc)
4234 size_t auxiliary_info_seek_offset = 0;
4237 if (sc->cenc.auxiliary_info_default_size) {
4238 auxiliary_info_seek_offset = sc->cenc.auxiliary_info_default_size * sc->current_sample;
4239 } else if (sc->cenc.auxiliary_info_sizes) {
4240 if (sc->current_sample > sc->cenc.auxiliary_info_sizes_count) {
4241 av_log(s, AV_LOG_ERROR, "current sample %d greater than the number of auxiliary info sample sizes %"SIZE_SPECIFIER"\n",
4242 sc->current_sample, sc->cenc.auxiliary_info_sizes_count);
4243 return AVERROR_INVALIDDATA;
4246 for (i = 0; i < sc->current_sample; i++) {
4247 auxiliary_info_seek_offset += sc->cenc.auxiliary_info_sizes[i];
4251 if (auxiliary_info_seek_offset > sc->cenc.auxiliary_info_end - sc->cenc.auxiliary_info) {
4252 av_log(s, AV_LOG_ERROR, "auxiliary info offset %"SIZE_SPECIFIER" greater than auxiliary info size %"SIZE_SPECIFIER"\n",
4253 auxiliary_info_seek_offset, (size_t)(sc->cenc.auxiliary_info_end - sc->cenc.auxiliary_info));
4254 return AVERROR_INVALIDDATA;
4257 sc->cenc.auxiliary_info_pos = sc->cenc.auxiliary_info + auxiliary_info_seek_offset;
4262 static const MOVParseTableEntry mov_default_parse_table[] = {
4263 { MKTAG('A','C','L','R'), mov_read_aclr },
4264 { MKTAG('A','P','R','G'), mov_read_avid },
4265 { MKTAG('A','A','L','P'), mov_read_avid },
4266 { MKTAG('A','R','E','S'), mov_read_ares },
4267 { MKTAG('a','v','s','s'), mov_read_avss },
4268 { MKTAG('c','h','p','l'), mov_read_chpl },
4269 { MKTAG('c','o','6','4'), mov_read_stco },
4270 { MKTAG('c','o','l','r'), mov_read_colr },
4271 { MKTAG('c','t','t','s'), mov_read_ctts }, /* composition time to sample */
4272 { MKTAG('d','i','n','f'), mov_read_default },
4273 { MKTAG('D','p','x','E'), mov_read_dpxe },
4274 { MKTAG('d','r','e','f'), mov_read_dref },
4275 { MKTAG('e','d','t','s'), mov_read_default },
4276 { MKTAG('e','l','s','t'), mov_read_elst },
4277 { MKTAG('e','n','d','a'), mov_read_enda },
4278 { MKTAG('f','i','e','l'), mov_read_fiel },
4279 { MKTAG('a','d','r','m'), mov_read_adrm },
4280 { MKTAG('f','t','y','p'), mov_read_ftyp },
4281 { MKTAG('g','l','b','l'), mov_read_glbl },
4282 { MKTAG('h','d','l','r'), mov_read_hdlr },
4283 { MKTAG('i','l','s','t'), mov_read_ilst },
4284 { MKTAG('j','p','2','h'), mov_read_jp2h },
4285 { MKTAG('m','d','a','t'), mov_read_mdat },
4286 { MKTAG('m','d','h','d'), mov_read_mdhd },
4287 { MKTAG('m','d','i','a'), mov_read_default },
4288 { MKTAG('m','e','t','a'), mov_read_meta },
4289 { MKTAG('m','i','n','f'), mov_read_default },
4290 { MKTAG('m','o','o','f'), mov_read_moof },
4291 { MKTAG('m','o','o','v'), mov_read_moov },
4292 { MKTAG('m','v','e','x'), mov_read_default },
4293 { MKTAG('m','v','h','d'), mov_read_mvhd },
4294 { MKTAG('S','M','I',' '), mov_read_svq3 },
4295 { MKTAG('a','l','a','c'), mov_read_alac }, /* alac specific atom */
4296 { MKTAG('a','v','c','C'), mov_read_glbl },
4297 { MKTAG('p','a','s','p'), mov_read_pasp },
4298 { MKTAG('s','i','d','x'), mov_read_sidx },
4299 { MKTAG('s','t','b','l'), mov_read_default },
4300 { MKTAG('s','t','c','o'), mov_read_stco },
4301 { MKTAG('s','t','p','s'), mov_read_stps },
4302 { MKTAG('s','t','r','f'), mov_read_strf },
4303 { MKTAG('s','t','s','c'), mov_read_stsc },
4304 { MKTAG('s','t','s','d'), mov_read_stsd }, /* sample description */
4305 { MKTAG('s','t','s','s'), mov_read_stss }, /* sync sample */
4306 { MKTAG('s','t','s','z'), mov_read_stsz }, /* sample size */
4307 { MKTAG('s','t','t','s'), mov_read_stts },
4308 { MKTAG('s','t','z','2'), mov_read_stsz }, /* compact sample size */
4309 { MKTAG('t','k','h','d'), mov_read_tkhd }, /* track header */
4310 { MKTAG('t','f','d','t'), mov_read_tfdt },
4311 { MKTAG('t','f','h','d'), mov_read_tfhd }, /* track fragment header */
4312 { MKTAG('t','r','a','k'), mov_read_trak },
4313 { MKTAG('t','r','a','f'), mov_read_default },
4314 { MKTAG('t','r','e','f'), mov_read_default },
4315 { MKTAG('t','m','c','d'), mov_read_tmcd },
4316 { MKTAG('c','h','a','p'), mov_read_chap },
4317 { MKTAG('t','r','e','x'), mov_read_trex },
4318 { MKTAG('t','r','u','n'), mov_read_trun },
4319 { MKTAG('u','d','t','a'), mov_read_default },
4320 { MKTAG('w','a','v','e'), mov_read_wave },
4321 { MKTAG('e','s','d','s'), mov_read_esds },
4322 { MKTAG('d','a','c','3'), mov_read_dac3 }, /* AC-3 info */
4323 { MKTAG('d','e','c','3'), mov_read_dec3 }, /* EAC-3 info */
4324 { MKTAG('d','d','t','s'), mov_read_ddts }, /* DTS audio descriptor */
4325 { MKTAG('w','i','d','e'), mov_read_wide }, /* place holder */
4326 { MKTAG('w','f','e','x'), mov_read_wfex },
4327 { MKTAG('c','m','o','v'), mov_read_cmov },
4328 { MKTAG('c','h','a','n'), mov_read_chan }, /* channel layout */
4329 { MKTAG('d','v','c','1'), mov_read_dvc1 },
4330 { MKTAG('s','b','g','p'), mov_read_sbgp },
4331 { MKTAG('h','v','c','C'), mov_read_glbl },
4332 { MKTAG('u','u','i','d'), mov_read_uuid },
4333 { MKTAG('C','i','n', 0x8e), mov_read_targa_y216 },
4334 { MKTAG('f','r','e','e'), mov_read_free },
4335 { MKTAG('-','-','-','-'), mov_read_custom },
4336 { MKTAG('s','i','n','f'), mov_read_default },
4337 { MKTAG('f','r','m','a'), mov_read_frma },
4338 { MKTAG('s','e','n','c'), mov_read_senc },
4339 { MKTAG('s','a','i','z'), mov_read_saiz },
4343 static int mov_read_default(MOVContext *c, AVIOContext *pb, MOVAtom atom)
4345 int64_t total_size = 0;
4349 if (c->atom_depth > 10) {
4350 av_log(c->fc, AV_LOG_ERROR, "Atoms too deeply nested\n");
4351 return AVERROR_INVALIDDATA;
4356 atom.size = INT64_MAX;
4357 while (total_size + 8 <= atom.size && !avio_feof(pb)) {
4358 int (*parse)(MOVContext*, AVIOContext*, MOVAtom) = NULL;
4361 if (atom.size >= 8) {
4362 a.size = avio_rb32(pb);
4363 a.type = avio_rl32(pb);
4364 if (a.type == MKTAG('f','r','e','e') &&
4368 uint32_t *type = (uint32_t *)buf + 1;
4369 if (avio_read(pb, buf, 8) != 8)
4370 return AVERROR_INVALIDDATA;
4371 avio_seek(pb, -8, SEEK_CUR);
4372 if (*type == MKTAG('m','v','h','d') ||
4373 *type == MKTAG('c','m','o','v')) {
4374 av_log(c->fc, AV_LOG_ERROR, "Detected moov in a free atom.\n");
4375 a.type = MKTAG('m','o','o','v');
4378 if (atom.type != MKTAG('r','o','o','t') &&
4379 atom.type != MKTAG('m','o','o','v'))
4381 if (a.type == MKTAG('t','r','a','k') || a.type == MKTAG('m','d','a','t'))
4383 av_log(c->fc, AV_LOG_ERROR, "Broken file, trak/mdat not at top-level\n");
4390 if (a.size == 1 && total_size + 8 <= atom.size) { /* 64 bit extended size */
4391 a.size = avio_rb64(pb) - 8;
4395 av_log(c->fc, AV_LOG_TRACE, "type: %08x '%.4s' parent:'%.4s' sz: %"PRId64" %"PRId64" %"PRId64"\n",
4396 a.type, (char*)&a.type, (char*)&atom.type, a.size, total_size, atom.size);
4398 a.size = atom.size - total_size + 8;
4403 a.size = FFMIN(a.size, atom.size - total_size);
4405 for (i = 0; mov_default_parse_table[i].type; i++)
4406 if (mov_default_parse_table[i].type == a.type) {
4407 parse = mov_default_parse_table[i].parse;
4411 // container is user data
4412 if (!parse && (atom.type == MKTAG('u','d','t','a') ||
4413 atom.type == MKTAG('i','l','s','t')))
4414 parse = mov_read_udta_string;
4416 // Supports parsing the QuickTime Metadata Keys.
4417 // https://developer.apple.com/library/mac/documentation/QuickTime/QTFF/Metadata/Metadata.html
4418 if (!parse && c->found_hdlr_mdta &&
4419 atom.type == MKTAG('m','e','t','a') &&
4420 a.type == MKTAG('k','e','y','s')) {
4421 parse = mov_read_keys;
4424 if (!parse) { /* skip leaf atoms data */
4425 avio_skip(pb, a.size);
4427 int64_t start_pos = avio_tell(pb);
4429 int err = parse(c, pb, a);
4434 if (c->found_moov && c->found_mdat &&
4435 ((!pb->seekable || c->fc->flags & AVFMT_FLAG_IGNIDX || c->fragment_index_complete) ||
4436 start_pos + a.size == avio_size(pb))) {
4437 if (!pb->seekable || c->fc->flags & AVFMT_FLAG_IGNIDX || c->fragment_index_complete)
4438 c->next_root_atom = start_pos + a.size;
4442 left = a.size - avio_tell(pb) + start_pos;
4443 if (left > 0) /* skip garbage at atom end */
4444 avio_skip(pb, left);
4445 else if (left < 0) {
4446 av_log(c->fc, AV_LOG_WARNING,
4447 "overread end of atom '%.4s' by %"PRId64" bytes\n",
4448 (char*)&a.type, -left);
4449 avio_seek(pb, left, SEEK_CUR);
4453 total_size += a.size;
4456 if (total_size < atom.size && atom.size < 0x7ffff)
4457 avio_skip(pb, atom.size - total_size);
4463 static int mov_probe(AVProbeData *p)
4468 int moov_offset = -1;
4470 /* check file header */
4473 /* ignore invalid offset */
4474 if ((offset + 8) > (unsigned int)p->buf_size)
4476 tag = AV_RL32(p->buf + offset + 4);
4478 /* check for obvious tags */
4479 case MKTAG('m','o','o','v'):
4480 moov_offset = offset + 4;
4481 case MKTAG('m','d','a','t'):
4482 case MKTAG('p','n','o','t'): /* detect movs with preview pics like ew.mov and april.mov */
4483 case MKTAG('u','d','t','a'): /* Packet Video PVAuthor adds this and a lot of more junk */
4484 case MKTAG('f','t','y','p'):
4485 if (AV_RB32(p->buf+offset) < 8 &&
4486 (AV_RB32(p->buf+offset) != 1 ||
4487 offset + 12 > (unsigned int)p->buf_size ||
4488 AV_RB64(p->buf+offset + 8) == 0)) {
4489 score = FFMAX(score, AVPROBE_SCORE_EXTENSION);
4490 } else if (tag == MKTAG('f','t','y','p') &&
4491 ( AV_RL32(p->buf + offset + 8) == MKTAG('j','p','2',' ')
4492 || AV_RL32(p->buf + offset + 8) == MKTAG('j','p','x',' ')
4494 score = FFMAX(score, 5);
4496 score = AVPROBE_SCORE_MAX;
4498 offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
4500 /* those are more common words, so rate then a bit less */
4501 case MKTAG('e','d','i','w'): /* xdcam files have reverted first tags */
4502 case MKTAG('w','i','d','e'):
4503 case MKTAG('f','r','e','e'):
4504 case MKTAG('j','u','n','k'):
4505 case MKTAG('p','i','c','t'):
4506 score = FFMAX(score, AVPROBE_SCORE_MAX - 5);
4507 offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
4509 case MKTAG(0x82,0x82,0x7f,0x7d):
4510 case MKTAG('s','k','i','p'):
4511 case MKTAG('u','u','i','d'):
4512 case MKTAG('p','r','f','l'):
4513 /* if we only find those cause probedata is too small at least rate them */
4514 score = FFMAX(score, AVPROBE_SCORE_EXTENSION);
4515 offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
4518 offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
4521 if(score > AVPROBE_SCORE_MAX - 50 && moov_offset != -1) {
4522 /* moov atom in the header - we should make sure that this is not a
4523 * MOV-packed MPEG-PS */
4524 offset = moov_offset;
4526 while(offset < (p->buf_size - 16)){ /* Sufficient space */
4527 /* We found an actual hdlr atom */
4528 if(AV_RL32(p->buf + offset ) == MKTAG('h','d','l','r') &&
4529 AV_RL32(p->buf + offset + 8) == MKTAG('m','h','l','r') &&
4530 AV_RL32(p->buf + offset + 12) == MKTAG('M','P','E','G')){
4531 av_log(NULL, AV_LOG_WARNING, "Found media data tag MPEG indicating this is a MOV-packed MPEG-PS.\n");
4532 /* We found a media handler reference atom describing an
4533 * MPEG-PS-in-MOV, return a
4534 * low score to force expanding the probe window until
4535 * mpegps_probe finds what it needs */
4546 // must be done after parsing all trak because there's no order requirement
4547 static void mov_read_chapters(AVFormatContext *s)
4549 MOVContext *mov = s->priv_data;
4550 AVStream *st = NULL;
4551 MOVStreamContext *sc;
4555 for (i = 0; i < s->nb_streams; i++)
4556 if (s->streams[i]->id == mov->chapter_track) {
4561 av_log(s, AV_LOG_ERROR, "Referenced QT chapter track not found\n");
4565 st->discard = AVDISCARD_ALL;
4567 cur_pos = avio_tell(sc->pb);
4569 for (i = 0; i < st->nb_index_entries; i++) {
4570 AVIndexEntry *sample = &st->index_entries[i];
4571 int64_t end = i+1 < st->nb_index_entries ? st->index_entries[i+1].timestamp : st->duration;
4576 if (end < sample->timestamp) {
4577 av_log(s, AV_LOG_WARNING, "ignoring stream duration which is shorter than chapters\n");
4578 end = AV_NOPTS_VALUE;
4581 if (avio_seek(sc->pb, sample->pos, SEEK_SET) != sample->pos) {
4582 av_log(s, AV_LOG_ERROR, "Chapter %d not found in file\n", i);
4586 // the first two bytes are the length of the title
4587 len = avio_rb16(sc->pb);
4588 if (len > sample->size-2)
4590 title_len = 2*len + 1;
4591 if (!(title = av_mallocz(title_len)))
4594 // The samples could theoretically be in any encoding if there's an encd
4595 // atom following, but in practice are only utf-8 or utf-16, distinguished
4596 // instead by the presence of a BOM
4600 ch = avio_rb16(sc->pb);
4602 avio_get_str16be(sc->pb, len, title, title_len);
4603 else if (ch == 0xfffe)
4604 avio_get_str16le(sc->pb, len, title, title_len);
4607 if (len == 1 || len == 2)
4610 avio_get_str(sc->pb, INT_MAX, title + 2, len - 1);
4614 avpriv_new_chapter(s, i, st->time_base, sample->timestamp, end, title);
4618 avio_seek(sc->pb, cur_pos, SEEK_SET);
4621 static int parse_timecode_in_framenum_format(AVFormatContext *s, AVStream *st,
4622 uint32_t value, int flags)
4625 char buf[AV_TIMECODE_STR_SIZE];
4626 AVRational rate = st->avg_frame_rate;
4627 int ret = av_timecode_init(&tc, rate, flags, 0, s);
4630 av_dict_set(&st->metadata, "timecode",
4631 av_timecode_make_string(&tc, buf, value), 0);
4635 static int mov_read_timecode_track(AVFormatContext *s, AVStream *st)
4637 MOVStreamContext *sc = st->priv_data;
4639 int64_t cur_pos = avio_tell(sc->pb);
4642 if (!st->nb_index_entries)
4645 avio_seek(sc->pb, st->index_entries->pos, SEEK_SET);
4646 value = avio_rb32(s->pb);
4648 if (sc->tmcd_flags & 0x0001) flags |= AV_TIMECODE_FLAG_DROPFRAME;
4649 if (sc->tmcd_flags & 0x0002) flags |= AV_TIMECODE_FLAG_24HOURSMAX;
4650 if (sc->tmcd_flags & 0x0004) flags |= AV_TIMECODE_FLAG_ALLOWNEGATIVE;
4652 /* Assume Counter flag is set to 1 in tmcd track (even though it is likely
4653 * not the case) and thus assume "frame number format" instead of QT one.
4654 * No sample with tmcd track can be found with a QT timecode at the moment,
4655 * despite what the tmcd track "suggests" (Counter flag set to 0 means QT
4657 parse_timecode_in_framenum_format(s, st, value, flags);
4659 avio_seek(sc->pb, cur_pos, SEEK_SET);
4663 static int mov_read_close(AVFormatContext *s)
4665 MOVContext *mov = s->priv_data;
4668 for (i = 0; i < s->nb_streams; i++) {
4669 AVStream *st = s->streams[i];
4670 MOVStreamContext *sc = st->priv_data;
4675 av_freep(&sc->ctts_data);
4676 for (j = 0; j < sc->drefs_count; j++) {
4677 av_freep(&sc->drefs[j].path);
4678 av_freep(&sc->drefs[j].dir);
4680 av_freep(&sc->drefs);
4682 sc->drefs_count = 0;
4684 if (!sc->pb_is_copied)
4685 ff_format_io_close(s, &sc->pb);
4688 av_freep(&sc->chunk_offsets);
4689 av_freep(&sc->stsc_data);
4690 av_freep(&sc->sample_sizes);
4691 av_freep(&sc->keyframes);
4692 av_freep(&sc->stts_data);
4693 av_freep(&sc->stps_data);
4694 av_freep(&sc->elst_data);
4695 av_freep(&sc->rap_group);
4696 av_freep(&sc->display_matrix);
4698 av_freep(&sc->cenc.auxiliary_info);
4699 av_freep(&sc->cenc.auxiliary_info_sizes);
4700 av_aes_ctr_free(sc->cenc.aes_ctr);
4703 if (mov->dv_demux) {
4704 avformat_free_context(mov->dv_fctx);
4705 mov->dv_fctx = NULL;
4708 if (mov->meta_keys) {
4709 for (i = 1; i < mov->meta_keys_count; i++) {
4710 av_freep(&mov->meta_keys[i]);
4712 av_freep(&mov->meta_keys);
4715 av_freep(&mov->trex_data);
4716 av_freep(&mov->bitrates);
4718 for (i = 0; i < mov->fragment_index_count; i++) {
4719 MOVFragmentIndex* index = mov->fragment_index_data[i];
4720 av_freep(&index->items);
4721 av_freep(&mov->fragment_index_data[i]);
4723 av_freep(&mov->fragment_index_data);
4725 av_freep(&mov->aes_decrypt);
4730 static int tmcd_is_referenced(AVFormatContext *s, int tmcd_id)
4734 for (i = 0; i < s->nb_streams; i++) {
4735 AVStream *st = s->streams[i];
4736 MOVStreamContext *sc = st->priv_data;
4738 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO &&
4739 sc->timecode_track == tmcd_id)
4745 /* look for a tmcd track not referenced by any video track, and export it globally */
4746 static void export_orphan_timecode(AVFormatContext *s)
4750 for (i = 0; i < s->nb_streams; i++) {
4751 AVStream *st = s->streams[i];
4753 if (st->codecpar->codec_tag == MKTAG('t','m','c','d') &&
4754 !tmcd_is_referenced(s, i + 1)) {
4755 AVDictionaryEntry *tcr = av_dict_get(st->metadata, "timecode", NULL, 0);
4757 av_dict_set(&s->metadata, "timecode", tcr->value, 0);
4764 static int read_tfra(MOVContext *mov, AVIOContext *f)
4766 MOVFragmentIndex* index = NULL;
4767 int version, fieldlength, i, j;
4768 int64_t pos = avio_tell(f);
4769 uint32_t size = avio_rb32(f);
4772 if (avio_rb32(f) != MKBETAG('t', 'f', 'r', 'a')) {
4775 av_log(mov->fc, AV_LOG_VERBOSE, "found tfra\n");
4776 index = av_mallocz(sizeof(MOVFragmentIndex));
4778 return AVERROR(ENOMEM);
4781 tmp = av_realloc_array(mov->fragment_index_data,
4782 mov->fragment_index_count + 1,
4783 sizeof(MOVFragmentIndex*));
4786 return AVERROR(ENOMEM);
4788 mov->fragment_index_data = tmp;
4789 mov->fragment_index_data[mov->fragment_index_count++] = index;
4791 version = avio_r8(f);
4793 index->track_id = avio_rb32(f);
4794 fieldlength = avio_rb32(f);
4795 index->item_count = avio_rb32(f);
4796 index->items = av_mallocz_array(
4797 index->item_count, sizeof(MOVFragmentIndexItem));
4798 if (!index->items) {
4799 index->item_count = 0;
4800 return AVERROR(ENOMEM);
4802 for (i = 0; i < index->item_count; i++) {
4803 int64_t time, offset;
4805 time = avio_rb64(f);
4806 offset = avio_rb64(f);
4808 time = avio_rb32(f);
4809 offset = avio_rb32(f);
4811 index->items[i].time = time;
4812 index->items[i].moof_offset = offset;
4813 for (j = 0; j < ((fieldlength >> 4) & 3) + 1; j++)
4815 for (j = 0; j < ((fieldlength >> 2) & 3) + 1; j++)
4817 for (j = 0; j < ((fieldlength >> 0) & 3) + 1; j++)
4821 avio_seek(f, pos + size, SEEK_SET);
4825 static int mov_read_mfra(MOVContext *c, AVIOContext *f)
4827 int64_t stream_size = avio_size(f);
4828 int64_t original_pos = avio_tell(f);
4832 if ((seek_ret = avio_seek(f, stream_size - 4, SEEK_SET)) < 0) {
4836 mfra_size = avio_rb32(f);
4837 if (mfra_size < 0 || mfra_size > stream_size) {
4838 av_log(c->fc, AV_LOG_DEBUG, "doesn't look like mfra (unreasonable size)\n");
4841 if ((seek_ret = avio_seek(f, -mfra_size, SEEK_CUR)) < 0) {
4845 if (avio_rb32(f) != mfra_size) {
4846 av_log(c->fc, AV_LOG_DEBUG, "doesn't look like mfra (size mismatch)\n");
4849 if (avio_rb32(f) != MKBETAG('m', 'f', 'r', 'a')) {
4850 av_log(c->fc, AV_LOG_DEBUG, "doesn't look like mfra (tag mismatch)\n");
4853 av_log(c->fc, AV_LOG_VERBOSE, "stream has mfra\n");
4855 ret = read_tfra(c, f);
4861 seek_ret = avio_seek(f, original_pos, SEEK_SET);
4863 av_log(c->fc, AV_LOG_ERROR,
4864 "failed to seek back after looking for mfra\n");
4870 static int mov_read_header(AVFormatContext *s)
4872 MOVContext *mov = s->priv_data;
4873 AVIOContext *pb = s->pb;
4875 MOVAtom atom = { AV_RL32("root") };
4878 if (mov->decryption_key_len != 0 && mov->decryption_key_len != AES_CTR_KEY_SIZE) {
4879 av_log(s, AV_LOG_ERROR, "Invalid decryption key len %d expected %d\n",
4880 mov->decryption_key_len, AES_CTR_KEY_SIZE);
4881 return AVERROR(EINVAL);
4885 mov->trak_index = -1;
4886 /* .mov and .mp4 aren't streamable anyway (only progressive download if moov is before mdat) */
4888 atom.size = avio_size(pb);
4890 atom.size = INT64_MAX;
4892 /* check MOV header */
4894 if (mov->moov_retry)
4895 avio_seek(pb, 0, SEEK_SET);
4896 if ((err = mov_read_default(mov, pb, atom)) < 0) {
4897 av_log(s, AV_LOG_ERROR, "error reading header\n");
4901 } while (pb->seekable && !mov->found_moov && !mov->moov_retry++);
4902 if (!mov->found_moov) {
4903 av_log(s, AV_LOG_ERROR, "moov atom not found\n");
4905 return AVERROR_INVALIDDATA;
4907 av_log(mov->fc, AV_LOG_TRACE, "on_parse_exit_offset=%"PRId64"\n", avio_tell(pb));
4910 if (mov->chapter_track > 0 && !mov->ignore_chapters)
4911 mov_read_chapters(s);
4912 for (i = 0; i < s->nb_streams; i++)
4913 if (s->streams[i]->codecpar->codec_tag == AV_RL32("tmcd"))
4914 mov_read_timecode_track(s, s->streams[i]);
4917 /* copy timecode metadata from tmcd tracks to the related video streams */
4918 for (i = 0; i < s->nb_streams; i++) {
4919 AVStream *st = s->streams[i];
4920 MOVStreamContext *sc = st->priv_data;
4921 if (sc->timecode_track > 0) {
4922 AVDictionaryEntry *tcr;
4923 int tmcd_st_id = -1;
4925 for (j = 0; j < s->nb_streams; j++)
4926 if (s->streams[j]->id == sc->timecode_track)
4929 if (tmcd_st_id < 0 || tmcd_st_id == i)
4931 tcr = av_dict_get(s->streams[tmcd_st_id]->metadata, "timecode", NULL, 0);
4933 av_dict_set(&st->metadata, "timecode", tcr->value, 0);
4936 export_orphan_timecode(s);
4938 for (i = 0; i < s->nb_streams; i++) {
4939 AVStream *st = s->streams[i];
4940 MOVStreamContext *sc = st->priv_data;
4941 fix_timescale(mov, sc);
4942 if(st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO && st->codecpar->codec_id == AV_CODEC_ID_AAC) {
4943 st->skip_samples = sc->start_pad;
4945 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO && sc->nb_frames_for_fps > 0 && sc->duration_for_fps > 0)
4946 av_reduce(&st->avg_frame_rate.num, &st->avg_frame_rate.den,
4947 sc->time_scale*(int64_t)sc->nb_frames_for_fps, sc->duration_for_fps, INT_MAX);
4948 if (st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE) {
4949 if (st->codecpar->width <= 0 || st->codecpar->height <= 0) {
4950 st->codecpar->width = sc->width;
4951 st->codecpar->height = sc->height;
4953 if (st->codecpar->codec_id == AV_CODEC_ID_DVD_SUBTITLE) {
4954 if ((err = mov_rewrite_dvd_sub_extradata(st)) < 0)
4958 if (mov->handbrake_version &&
4959 mov->handbrake_version <= 1000000*0 + 1000*10 + 2 && // 0.10.2
4960 st->codecpar->codec_id == AV_CODEC_ID_MP3
4962 av_log(s, AV_LOG_VERBOSE, "Forcing full parsing for mp3 stream\n");
4963 st->need_parsing = AVSTREAM_PARSE_FULL;
4967 if (mov->trex_data) {
4968 for (i = 0; i < s->nb_streams; i++) {
4969 AVStream *st = s->streams[i];
4970 MOVStreamContext *sc = st->priv_data;
4971 if (st->duration > 0)
4972 st->codecpar->bit_rate = sc->data_size * 8 * sc->time_scale / st->duration;
4976 if (mov->use_mfra_for > 0) {
4977 for (i = 0; i < s->nb_streams; i++) {
4978 AVStream *st = s->streams[i];
4979 MOVStreamContext *sc = st->priv_data;
4980 if (sc->duration_for_fps > 0) {
4981 st->codecpar->bit_rate = sc->data_size * 8 * sc->time_scale /
4982 sc->duration_for_fps;
4987 for (i = 0; i < mov->bitrates_count && i < s->nb_streams; i++) {
4988 if (mov->bitrates[i]) {
4989 s->streams[i]->codecpar->bit_rate = mov->bitrates[i];
4993 ff_rfps_calculate(s);
4995 for (i = 0; i < s->nb_streams; i++) {
4996 AVStream *st = s->streams[i];
4997 MOVStreamContext *sc = st->priv_data;
4999 switch (st->codecpar->codec_type) {
5000 case AVMEDIA_TYPE_AUDIO:
5001 err = ff_replaygain_export(st, s->metadata);
5007 case AVMEDIA_TYPE_VIDEO:
5008 if (sc->display_matrix) {
5009 AVPacketSideData *sd, *tmp;
5011 tmp = av_realloc_array(st->side_data,
5012 st->nb_side_data + 1, sizeof(*tmp));
5014 return AVERROR(ENOMEM);
5016 st->side_data = tmp;
5019 sd = &st->side_data[st->nb_side_data - 1];
5020 sd->type = AV_PKT_DATA_DISPLAYMATRIX;
5021 sd->size = sizeof(int32_t) * 9;
5022 sd->data = (uint8_t*)sc->display_matrix;
5023 sc->display_matrix = NULL;
5028 ff_configure_buffers_for_index(s, AV_TIME_BASE);
5033 static AVIndexEntry *mov_find_next_sample(AVFormatContext *s, AVStream **st)
5035 AVIndexEntry *sample = NULL;
5036 int64_t best_dts = INT64_MAX;
5038 for (i = 0; i < s->nb_streams; i++) {
5039 AVStream *avst = s->streams[i];
5040 MOVStreamContext *msc = avst->priv_data;
5041 if (msc->pb && msc->current_sample < avst->nb_index_entries) {
5042 AVIndexEntry *current_sample = &avst->index_entries[msc->current_sample];
5043 int64_t dts = av_rescale(current_sample->timestamp, AV_TIME_BASE, msc->time_scale);
5044 av_log(s, AV_LOG_TRACE, "stream %d, sample %d, dts %"PRId64"\n", i, msc->current_sample, dts);
5045 if (!sample || (!s->pb->seekable && current_sample->pos < sample->pos) ||
5047 ((msc->pb != s->pb && dts < best_dts) || (msc->pb == s->pb &&
5048 ((FFABS(best_dts - dts) <= AV_TIME_BASE && current_sample->pos < sample->pos) ||
5049 (FFABS(best_dts - dts) > AV_TIME_BASE && dts < best_dts)))))) {
5050 sample = current_sample;
5059 static int should_retry(AVIOContext *pb, int error_code) {
5060 if (error_code == AVERROR_EOF || avio_feof(pb))
5066 static int mov_switch_root(AVFormatContext *s, int64_t target)
5068 MOVContext *mov = s->priv_data;
5070 int already_read = 0;
5072 if (avio_seek(s->pb, target, SEEK_SET) != target) {
5073 av_log(mov->fc, AV_LOG_ERROR, "root atom offset 0x%"PRIx64": partial file\n", target);
5074 return AVERROR_INVALIDDATA;
5077 mov->next_root_atom = 0;
5079 for (i = 0; i < mov->fragment_index_count; i++) {
5080 MOVFragmentIndex *index = mov->fragment_index_data[i];
5082 for (j = 0; j < index->item_count; j++) {
5083 MOVFragmentIndexItem *item = &index->items[j];
5085 mov->next_root_atom = item->moof_offset;
5086 break; // Advance to next index in outer loop
5087 } else if (item->moof_offset == target) {
5088 index->current_item = FFMIN(j, index->current_item);
5089 if (item->headers_read)
5091 item->headers_read = 1;
5096 index->current_item = 0;
5102 mov->found_mdat = 0;
5104 if (mov_read_default(mov, s->pb, (MOVAtom){ AV_RL32("root"), INT64_MAX }) < 0 ||
5107 av_log(s, AV_LOG_TRACE, "read fragments, offset 0x%"PRIx64"\n", avio_tell(s->pb));
5112 static int mov_read_packet(AVFormatContext *s, AVPacket *pkt)
5114 MOVContext *mov = s->priv_data;
5115 MOVStreamContext *sc;
5116 AVIndexEntry *sample;
5117 AVStream *st = NULL;
5121 sample = mov_find_next_sample(s, &st);
5122 if (!sample || (mov->next_root_atom && sample->pos > mov->next_root_atom)) {
5123 if (!mov->next_root_atom)
5125 if ((ret = mov_switch_root(s, mov->next_root_atom)) < 0)
5130 /* must be done just before reading, to avoid infinite loop on sample */
5131 sc->current_sample++;
5133 if (mov->next_root_atom) {
5134 sample->pos = FFMIN(sample->pos, mov->next_root_atom);
5135 sample->size = FFMIN(sample->size, (mov->next_root_atom - sample->pos));
5138 if (st->discard != AVDISCARD_ALL) {
5139 int64_t ret64 = avio_seek(sc->pb, sample->pos, SEEK_SET);
5140 if (ret64 != sample->pos) {
5141 av_log(mov->fc, AV_LOG_ERROR, "stream %d, offset 0x%"PRIx64": partial file\n",
5142 sc->ffindex, sample->pos);
5143 sc->current_sample -= should_retry(sc->pb, ret64);
5144 return AVERROR_INVALIDDATA;
5146 ret = av_get_packet(sc->pb, pkt, sample->size);
5148 sc->current_sample -= should_retry(sc->pb, ret);
5151 if (sc->has_palette) {
5154 pal = av_packet_new_side_data(pkt, AV_PKT_DATA_PALETTE, AVPALETTE_SIZE);
5156 av_log(mov->fc, AV_LOG_ERROR, "Cannot append palette to packet\n");
5158 memcpy(pal, sc->palette, AVPALETTE_SIZE);
5159 sc->has_palette = 0;
5162 #if CONFIG_DV_DEMUXER
5163 if (mov->dv_demux && sc->dv_audio_container) {
5164 avpriv_dv_produce_packet(mov->dv_demux, pkt, pkt->data, pkt->size, pkt->pos);
5165 av_freep(&pkt->data);
5167 ret = avpriv_dv_get_packet(mov->dv_demux, pkt);
5174 pkt->stream_index = sc->ffindex;
5175 pkt->dts = sample->timestamp;
5176 if (sc->ctts_data && sc->ctts_index < sc->ctts_count) {
5177 pkt->pts = pkt->dts + sc->dts_shift + sc->ctts_data[sc->ctts_index].duration;
5178 /* update ctts context */
5180 if (sc->ctts_index < sc->ctts_count &&
5181 sc->ctts_data[sc->ctts_index].count == sc->ctts_sample) {
5183 sc->ctts_sample = 0;
5186 pkt->dts = AV_NOPTS_VALUE;
5188 int64_t next_dts = (sc->current_sample < st->nb_index_entries) ?
5189 st->index_entries[sc->current_sample].timestamp : st->duration;
5190 pkt->duration = next_dts - pkt->dts;
5191 pkt->pts = pkt->dts;
5193 if (st->discard == AVDISCARD_ALL)
5195 pkt->flags |= sample->flags & AVINDEX_KEYFRAME ? AV_PKT_FLAG_KEY : 0;
5196 pkt->pos = sample->pos;
5199 aax_filter(pkt->data, pkt->size, mov);
5201 if (sc->cenc.aes_ctr) {
5202 ret = cenc_filter(mov, sc, pkt->data, pkt->size);
5211 static int mov_seek_fragment(AVFormatContext *s, AVStream *st, int64_t timestamp)
5213 MOVContext *mov = s->priv_data;
5216 if (!mov->fragment_index_complete)
5219 for (i = 0; i < mov->fragment_index_count; i++) {
5220 if (mov->fragment_index_data[i]->track_id == st->id) {
5221 MOVFragmentIndex *index = mov->fragment_index_data[i];
5222 for (j = index->item_count - 1; j >= 0; j--) {
5223 if (index->items[j].time <= timestamp) {
5224 if (index->items[j].headers_read)
5227 return mov_switch_root(s, index->items[j].moof_offset);
5236 static int mov_seek_stream(AVFormatContext *s, AVStream *st, int64_t timestamp, int flags)
5238 MOVStreamContext *sc = st->priv_data;
5239 int sample, time_sample;
5242 int ret = mov_seek_fragment(s, st, timestamp);
5246 sample = av_index_search_timestamp(st, timestamp, flags);
5247 av_log(s, AV_LOG_TRACE, "stream %d, timestamp %"PRId64", sample %d\n", st->index, timestamp, sample);
5248 if (sample < 0 && st->nb_index_entries && timestamp < st->index_entries[0].timestamp)
5250 if (sample < 0) /* not sure what to do */
5251 return AVERROR_INVALIDDATA;
5252 sc->current_sample = sample;
5253 av_log(s, AV_LOG_TRACE, "stream %d, found sample %d\n", st->index, sc->current_sample);
5254 /* adjust ctts index */
5255 if (sc->ctts_data) {
5257 for (i = 0; i < sc->ctts_count; i++) {
5258 int next = time_sample + sc->ctts_data[i].count;
5259 if (next > sc->current_sample) {
5261 sc->ctts_sample = sc->current_sample - time_sample;
5268 ret = mov_seek_auxiliary_info(s, sc);
5276 static int mov_read_seek(AVFormatContext *s, int stream_index, int64_t sample_time, int flags)
5278 MOVContext *mc = s->priv_data;
5283 if (stream_index >= s->nb_streams)
5284 return AVERROR_INVALIDDATA;
5286 st = s->streams[stream_index];
5287 sample = mov_seek_stream(s, st, sample_time, flags);
5291 if (mc->seek_individually) {
5292 /* adjust seek timestamp to found sample timestamp */
5293 int64_t seek_timestamp = st->index_entries[sample].timestamp;
5295 for (i = 0; i < s->nb_streams; i++) {
5297 MOVStreamContext *sc = s->streams[i]->priv_data;
5299 st->skip_samples = (sample_time <= 0) ? sc->start_pad : 0;
5301 if (stream_index == i)
5304 timestamp = av_rescale_q(seek_timestamp, s->streams[stream_index]->time_base, st->time_base);
5305 mov_seek_stream(s, st, timestamp, flags);
5308 for (i = 0; i < s->nb_streams; i++) {
5309 MOVStreamContext *sc;
5312 sc->current_sample = 0;
5315 MOVStreamContext *sc;
5316 AVIndexEntry *entry = mov_find_next_sample(s, &st);
5318 return AVERROR_INVALIDDATA;
5320 if (sc->ffindex == stream_index && sc->current_sample == sample)
5322 sc->current_sample++;
5328 #define OFFSET(x) offsetof(MOVContext, x)
5329 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM
5330 static const AVOption mov_options[] = {
5331 {"use_absolute_path",
5332 "allow using absolute path when opening alias, this is a possible security issue",
5333 OFFSET(use_absolute_path), AV_OPT_TYPE_BOOL, {.i64 = 0},
5335 {"seek_streams_individually",
5336 "Seek each stream individually to the to the closest point",
5337 OFFSET(seek_individually), AV_OPT_TYPE_BOOL, { .i64 = 1 },
5339 {"ignore_editlist", "", OFFSET(ignore_editlist), AV_OPT_TYPE_BOOL, {.i64 = 0},
5341 {"ignore_chapters", "", OFFSET(ignore_chapters), AV_OPT_TYPE_BOOL, {.i64 = 0},
5344 "use mfra for fragment timestamps",
5345 OFFSET(use_mfra_for), AV_OPT_TYPE_INT, {.i64 = FF_MOV_FLAG_MFRA_AUTO},
5346 -1, FF_MOV_FLAG_MFRA_PTS, FLAGS,
5348 {"auto", "auto", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_MFRA_AUTO}, 0, 0,
5349 FLAGS, "use_mfra_for" },
5350 {"dts", "dts", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_MFRA_DTS}, 0, 0,
5351 FLAGS, "use_mfra_for" },
5352 {"pts", "pts", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_MFRA_PTS}, 0, 0,
5353 FLAGS, "use_mfra_for" },
5354 { "export_all", "Export unrecognized metadata entries", OFFSET(export_all),
5355 AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, .flags = FLAGS },
5356 { "export_xmp", "Export full XMP metadata", OFFSET(export_xmp),
5357 AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, .flags = FLAGS },
5358 { "activation_bytes", "Secret bytes for Audible AAX files", OFFSET(activation_bytes),
5359 AV_OPT_TYPE_BINARY, .flags = AV_OPT_FLAG_DECODING_PARAM },
5360 { "audible_fixed_key", // extracted from libAAX_SDK.so and AAXSDKWin.dll files!
5361 "Fixed key used for handling Audible AAX files", OFFSET(audible_fixed_key),
5362 AV_OPT_TYPE_BINARY, {.str="77214d4b196a87cd520045fd20a51d67"},
5363 .flags = AV_OPT_FLAG_DECODING_PARAM },
5364 { "decryption_key", "The media decryption key (hex)", OFFSET(decryption_key), AV_OPT_TYPE_BINARY, .flags = AV_OPT_FLAG_DECODING_PARAM },
5365 { "enable_drefs", "Enable external track support.", OFFSET(enable_drefs), AV_OPT_TYPE_BOOL,
5366 {.i64 = 0}, 0, 1, FLAGS },
5371 static const AVClass mov_class = {
5372 .class_name = "mov,mp4,m4a,3gp,3g2,mj2",
5373 .item_name = av_default_item_name,
5374 .option = mov_options,
5375 .version = LIBAVUTIL_VERSION_INT,
5378 AVInputFormat ff_mov_demuxer = {
5379 .name = "mov,mp4,m4a,3gp,3g2,mj2",
5380 .long_name = NULL_IF_CONFIG_SMALL("QuickTime / MOV"),
5381 .priv_class = &mov_class,
5382 .priv_data_size = sizeof(MOVContext),
5383 .extensions = "mov,mp4,m4a,3gp,3g2,mj2",
5384 .read_probe = mov_probe,
5385 .read_header = mov_read_header,
5386 .read_packet = mov_read_packet,
5387 .read_close = mov_read_close,
5388 .read_seek = mov_read_seek,
5389 .flags = AVFMT_NO_BYTE_SEEK,