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 Libav.
11 * Libav 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 * Libav 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 Libav; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
30 #include "libavutil/attributes.h"
31 #include "libavutil/channel_layout.h"
32 #include "libavutil/intreadwrite.h"
33 #include "libavutil/intfloat.h"
34 #include "libavutil/mathematics.h"
35 #include "libavutil/time_internal.h"
36 #include "libavutil/avstring.h"
37 #include "libavutil/dict.h"
38 #include "libavutil/opt.h"
39 #include "libavutil/pixdesc.h"
40 #include "libavutil/spherical.h"
41 #include "libavutil/stereo3d.h"
43 #include "libavcodec/ac3tab.h"
44 #include "libavcodec/bitstream.h"
48 #include "avio_internal.h"
53 #include "replaygain.h"
59 #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);
71 static int mov_metadata_track_or_disc_number(MOVContext *c, AVIOContext *pb,
72 unsigned len, const char *key)
76 short current, total = 0;
77 avio_rb16(pb); // unknown
78 current = avio_rb16(pb);
80 total = avio_rb16(pb);
82 snprintf(buf, sizeof(buf), "%d", current);
84 snprintf(buf, sizeof(buf), "%d/%d", current, total);
85 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
86 av_dict_set(&c->fc->metadata, key, buf, 0);
91 static int mov_metadata_int8_bypass_padding(MOVContext *c, AVIOContext *pb,
92 unsigned len, const char *key)
96 /* bypass padding bytes */
101 snprintf(buf, sizeof(buf), "%d", avio_r8(pb));
102 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
103 av_dict_set(&c->fc->metadata, key, buf, 0);
108 static int mov_metadata_int8_no_padding(MOVContext *c, AVIOContext *pb,
109 unsigned len, const char *key)
113 snprintf(buf, sizeof(buf), "%d", avio_r8(pb));
114 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
115 av_dict_set(&c->fc->metadata, key, buf, 0);
120 static int mov_metadata_gnre(MOVContext *c, AVIOContext *pb,
121 unsigned len, const char *key)
126 avio_r8(pb); // unknown
129 if (genre < 1 || genre > ID3v1_GENRE_MAX)
131 snprintf(buf, sizeof(buf), "%s", ff_id3v1_genre_str[genre-1]);
132 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
133 av_dict_set(&c->fc->metadata, key, buf, 0);
138 static const uint32_t mac_to_unicode[128] = {
139 0x00C4,0x00C5,0x00C7,0x00C9,0x00D1,0x00D6,0x00DC,0x00E1,
140 0x00E0,0x00E2,0x00E4,0x00E3,0x00E5,0x00E7,0x00E9,0x00E8,
141 0x00EA,0x00EB,0x00ED,0x00EC,0x00EE,0x00EF,0x00F1,0x00F3,
142 0x00F2,0x00F4,0x00F6,0x00F5,0x00FA,0x00F9,0x00FB,0x00FC,
143 0x2020,0x00B0,0x00A2,0x00A3,0x00A7,0x2022,0x00B6,0x00DF,
144 0x00AE,0x00A9,0x2122,0x00B4,0x00A8,0x2260,0x00C6,0x00D8,
145 0x221E,0x00B1,0x2264,0x2265,0x00A5,0x00B5,0x2202,0x2211,
146 0x220F,0x03C0,0x222B,0x00AA,0x00BA,0x03A9,0x00E6,0x00F8,
147 0x00BF,0x00A1,0x00AC,0x221A,0x0192,0x2248,0x2206,0x00AB,
148 0x00BB,0x2026,0x00A0,0x00C0,0x00C3,0x00D5,0x0152,0x0153,
149 0x2013,0x2014,0x201C,0x201D,0x2018,0x2019,0x00F7,0x25CA,
150 0x00FF,0x0178,0x2044,0x20AC,0x2039,0x203A,0xFB01,0xFB02,
151 0x2021,0x00B7,0x201A,0x201E,0x2030,0x00C2,0x00CA,0x00C1,
152 0x00CB,0x00C8,0x00CD,0x00CE,0x00CF,0x00CC,0x00D3,0x00D4,
153 0xF8FF,0x00D2,0x00DA,0x00DB,0x00D9,0x0131,0x02C6,0x02DC,
154 0x00AF,0x02D8,0x02D9,0x02DA,0x00B8,0x02DD,0x02DB,0x02C7,
157 static int mov_read_mac_string(MOVContext *c, AVIOContext *pb, int len,
158 char *dst, int dstlen)
161 char *end = dst+dstlen-1;
164 for (i = 0; i < len; i++) {
165 uint8_t t, c = avio_r8(pb);
173 PUT_UTF8(mac_to_unicode[c-0x80], t, if (p < end) *p++ = t;);
179 static int mov_read_covr(MOVContext *c, AVIOContext *pb, int type, int len)
183 MOVStreamContext *sc;
188 case 0xd: id = AV_CODEC_ID_MJPEG; break;
189 case 0xe: id = AV_CODEC_ID_PNG; break;
190 case 0x1b: id = AV_CODEC_ID_BMP; break;
192 av_log(c->fc, AV_LOG_WARNING, "Unknown cover type: 0x%x.\n", type);
197 st = avformat_new_stream(c->fc, NULL);
199 return AVERROR(ENOMEM);
200 sc = av_mallocz(sizeof(*sc));
202 return AVERROR(ENOMEM);
205 ret = av_get_packet(pb, &pkt, len);
209 if (pkt.size >= 8 && id != AV_CODEC_ID_BMP) {
210 if (AV_RB64(pkt.data) == 0x89504e470d0a1a0a) {
211 id = AV_CODEC_ID_PNG;
213 id = AV_CODEC_ID_MJPEG;
217 st->disposition |= AV_DISPOSITION_ATTACHED_PIC;
219 st->attached_pic = pkt;
220 st->attached_pic.stream_index = st->index;
221 st->attached_pic.flags |= AV_PKT_FLAG_KEY;
223 st->codecpar->codec_type = AVMEDIA_TYPE_VIDEO;
224 st->codecpar->codec_id = id;
230 static int mov_metadata_loci(MOVContext *c, AVIOContext *pb, unsigned len)
232 char language[4] = { 0 };
233 char buf[200], place[100];
234 uint16_t langcode = 0;
235 double longitude, latitude, altitude;
236 const char *key = "location";
238 if (len < 4 + 2 + 1 + 1 + 4 + 4 + 4) {
239 av_log(c->fc, AV_LOG_ERROR, "loci too short\n");
240 return AVERROR_INVALIDDATA;
243 avio_skip(pb, 4); // version+flags
244 langcode = avio_rb16(pb);
245 ff_mov_lang_to_iso639(langcode, language);
248 len -= avio_get_str(pb, len, place, sizeof(place));
250 av_log(c->fc, AV_LOG_ERROR, "place name too long\n");
251 return AVERROR_INVALIDDATA;
253 avio_skip(pb, 1); // role
257 av_log(c->fc, AV_LOG_ERROR,
258 "loci too short (%u bytes left, need at least %d)\n", len, 12);
259 return AVERROR_INVALIDDATA;
261 longitude = ((int32_t) avio_rb32(pb)) / (float) (1 << 16);
262 latitude = ((int32_t) avio_rb32(pb)) / (float) (1 << 16);
263 altitude = ((int32_t) avio_rb32(pb)) / (float) (1 << 16);
265 // Try to output in the same format as the ?xyz field
266 snprintf(buf, sizeof(buf), "%+08.4f%+09.4f", latitude, longitude);
268 av_strlcatf(buf, sizeof(buf), "%+f", altitude);
269 av_strlcatf(buf, sizeof(buf), "/%s", place);
271 if (*language && strcmp(language, "und")) {
273 snprintf(key2, sizeof(key2), "%s-%s", key, language);
274 av_dict_set(&c->fc->metadata, key2, buf, 0);
276 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
277 return av_dict_set(&c->fc->metadata, key, buf, 0);
280 static int mov_read_udta_string(MOVContext *c, AVIOContext *pb, MOVAtom atom)
283 char *str, key2[32], language[4] = {0};
284 const char *key = NULL;
285 uint16_t langcode = 0;
286 uint32_t data_type = 0, str_size, str_size_alloc;
287 int (*parse)(MOVContext*, AVIOContext*, unsigned, const char*) = NULL;
291 case MKTAG( '@','P','R','M'): key = "premiere_version"; raw = 1; break;
292 case MKTAG( '@','P','R','Q'): key = "quicktime_version"; raw = 1; break;
293 case MKTAG( 'X','M','P','_'):
294 if (c->export_xmp) { key = "xmp"; raw = 1; } break;
295 case MKTAG( 'a','A','R','T'): key = "album_artist"; break;
296 case MKTAG( 'a','k','I','D'): key = "account_type";
297 parse = mov_metadata_int8_no_padding; break;
298 case MKTAG( 'a','p','I','D'): key = "account_id"; break;
299 case MKTAG( 'c','a','t','g'): key = "category"; break;
300 case MKTAG( 'c','p','i','l'): key = "compilation";
301 parse = mov_metadata_int8_no_padding; break;
302 case MKTAG( 'c','p','r','t'): key = "copyright"; break;
303 case MKTAG( 'd','e','s','c'): key = "description"; break;
304 case MKTAG( 'd','i','s','k'): key = "disc";
305 parse = mov_metadata_track_or_disc_number; break;
306 case MKTAG( 'e','g','i','d'): key = "episode_uid";
307 parse = mov_metadata_int8_no_padding; break;
308 case MKTAG( 'g','n','r','e'): key = "genre";
309 parse = mov_metadata_gnre; break;
310 case MKTAG( 'h','d','v','d'): key = "hd_video";
311 parse = mov_metadata_int8_no_padding; break;
312 case MKTAG( 'k','e','y','w'): key = "keywords"; break;
313 case MKTAG( 'l','d','e','s'): key = "synopsis"; break;
314 case MKTAG( 'l','o','c','i'):
315 return mov_metadata_loci(c, pb, atom.size);
316 case MKTAG( 'p','c','s','t'): key = "podcast";
317 parse = mov_metadata_int8_no_padding; break;
318 case MKTAG( 'p','g','a','p'): key = "gapless_playback";
319 parse = mov_metadata_int8_no_padding; break;
320 case MKTAG( 'p','u','r','d'): key = "purchase_date"; break;
321 case MKTAG( 'r','t','n','g'): key = "rating";
322 parse = mov_metadata_int8_no_padding; break;
323 case MKTAG( 's','o','a','a'): key = "sort_album_artist"; break;
324 case MKTAG( 's','o','a','l'): key = "sort_album"; break;
325 case MKTAG( 's','o','a','r'): key = "sort_artist"; break;
326 case MKTAG( 's','o','c','o'): key = "sort_composer"; break;
327 case MKTAG( 's','o','n','m'): key = "sort_name"; break;
328 case MKTAG( 's','o','s','n'): key = "sort_show"; break;
329 case MKTAG( 's','t','i','k'): key = "media_type";
330 parse = mov_metadata_int8_no_padding; break;
331 case MKTAG( 't','r','k','n'): key = "track";
332 parse = mov_metadata_track_or_disc_number; break;
333 case MKTAG( 't','v','e','n'): key = "episode_id"; break;
334 case MKTAG( 't','v','e','s'): key = "episode_sort";
335 parse = mov_metadata_int8_bypass_padding; break;
336 case MKTAG( 't','v','n','n'): key = "network"; break;
337 case MKTAG( 't','v','s','h'): key = "show"; break;
338 case MKTAG( 't','v','s','n'): key = "season_number";
339 parse = mov_metadata_int8_bypass_padding; break;
340 case MKTAG(0xa9,'A','R','T'): key = "artist"; break;
341 case MKTAG(0xa9,'P','R','D'): key = "producer"; break;
342 case MKTAG(0xa9,'a','l','b'): key = "album"; break;
343 case MKTAG(0xa9,'a','u','t'): key = "artist"; break;
344 case MKTAG(0xa9,'c','h','p'): key = "chapter"; break;
345 case MKTAG(0xa9,'c','m','t'): key = "comment"; break;
346 case MKTAG(0xa9,'c','o','m'): key = "composer"; break;
347 case MKTAG(0xa9,'c','p','y'): key = "copyright"; break;
348 case MKTAG(0xa9,'d','a','y'): key = "date"; break;
349 case MKTAG(0xa9,'d','i','r'): key = "director"; break;
350 case MKTAG(0xa9,'d','i','s'): key = "disclaimer"; break;
351 case MKTAG(0xa9,'e','d','1'): key = "edit_date"; break;
352 case MKTAG(0xa9,'e','n','c'): key = "encoder"; break;
353 case MKTAG(0xa9,'f','m','t'): key = "original_format"; break;
354 case MKTAG(0xa9,'g','e','n'): key = "genre"; break;
355 case MKTAG(0xa9,'g','r','p'): key = "grouping"; break;
356 case MKTAG(0xa9,'h','s','t'): key = "host_computer"; break;
357 case MKTAG(0xa9,'i','n','f'): key = "comment"; break;
358 case MKTAG(0xa9,'l','y','r'): key = "lyrics"; break;
359 case MKTAG(0xa9,'m','a','k'): key = "make"; break;
360 case MKTAG(0xa9,'m','o','d'): key = "model"; break;
361 case MKTAG(0xa9,'n','a','m'): key = "title"; break;
362 case MKTAG(0xa9,'o','p','e'): key = "original_artist"; break;
363 case MKTAG(0xa9,'p','r','d'): key = "producer"; break;
364 case MKTAG(0xa9,'p','r','f'): key = "performers"; break;
365 case MKTAG(0xa9,'r','e','q'): key = "playback_requirements"; break;
366 case MKTAG(0xa9,'s','r','c'): key = "original_source"; break;
367 case MKTAG(0xa9,'s','t','3'): key = "subtitle"; break;
368 case MKTAG(0xa9,'s','w','r'): key = "encoder"; break;
369 case MKTAG(0xa9,'t','o','o'): key = "encoder"; break;
370 case MKTAG(0xa9,'t','r','k'): key = "track"; break;
371 case MKTAG(0xa9,'u','r','l'): key = "URL"; break;
372 case MKTAG(0xa9,'w','r','n'): key = "warning"; break;
373 case MKTAG(0xa9,'w','r','t'): key = "composer"; break;
374 case MKTAG(0xa9,'x','y','z'): key = "location"; break;
377 if (c->itunes_metadata && atom.size > 8) {
378 int data_size = avio_rb32(pb);
379 int tag = avio_rl32(pb);
380 if (tag == MKTAG('d','a','t','a')) {
381 data_type = avio_rb32(pb); // type
382 avio_rb32(pb); // unknown
383 str_size = data_size - 16;
386 if (atom.type == MKTAG('c', 'o', 'v', 'r')) {
387 int ret = mov_read_covr(c, pb, data_type, str_size);
389 av_log(c->fc, AV_LOG_ERROR, "Error parsing cover art.\n");
394 } else if (atom.size > 4 && key && !c->itunes_metadata && !raw) {
395 str_size = avio_rb16(pb); // string length
396 langcode = avio_rb16(pb);
397 ff_mov_lang_to_iso639(langcode, language);
400 str_size = atom.size;
402 if (c->export_all && !key) {
403 snprintf(tmp_key, 5, "%.4s", (char*)&atom.type);
410 return AVERROR_INVALIDDATA;
412 // allocate twice as much as worst-case
413 str_size_alloc = (raw ? str_size : str_size * 2) + 1;
414 str = av_malloc(str_size_alloc);
416 return AVERROR(ENOMEM);
419 parse(c, pb, str_size, key);
421 if (!raw && (data_type == 3 || (data_type == 0 && (langcode < 0x400 || langcode == 0x7fff)))) { // MAC Encoded
422 mov_read_mac_string(c, pb, str_size, str, str_size_alloc);
424 int ret = ffio_read_size(pb, str, str_size);
431 c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
432 av_dict_set(&c->fc->metadata, key, str, 0);
433 if (*language && strcmp(language, "und")) {
434 snprintf(key2, sizeof(key2), "%s-%s", key, language);
435 av_dict_set(&c->fc->metadata, key2, str, 0);
443 static int mov_read_chpl(MOVContext *c, AVIOContext *pb, MOVAtom atom)
446 int i, nb_chapters, str_len, version;
450 if ((atom.size -= 5) < 0)
453 version = avio_r8(pb);
456 avio_rb32(pb); // ???
457 nb_chapters = avio_r8(pb);
459 for (i = 0; i < nb_chapters; i++) {
463 start = avio_rb64(pb);
464 str_len = avio_r8(pb);
466 if ((atom.size -= 9+str_len) < 0)
469 ret = ffio_read_size(pb, str, str_len);
473 avpriv_new_chapter(c->fc, i, (AVRational){1,10000000}, start, AV_NOPTS_VALUE, str);
478 #define MIN_DATA_ENTRY_BOX_SIZE 12
479 static int mov_read_dref(MOVContext *c, AVIOContext *pb, MOVAtom atom)
482 MOVStreamContext *sc;
485 if (c->fc->nb_streams < 1)
487 st = c->fc->streams[c->fc->nb_streams-1];
490 avio_rb32(pb); // version + flags
491 entries = avio_rb32(pb);
493 entries > (atom.size - 1) / MIN_DATA_ENTRY_BOX_SIZE + 1 ||
494 entries >= UINT_MAX / sizeof(*sc->drefs))
495 return AVERROR_INVALIDDATA;
498 sc->drefs = av_mallocz(entries * sizeof(*sc->drefs));
500 return AVERROR(ENOMEM);
501 sc->drefs_count = entries;
503 for (i = 0; i < entries; i++) {
504 MOVDref *dref = &sc->drefs[i];
505 uint32_t size = avio_rb32(pb);
506 int64_t next = avio_tell(pb) + size - 4;
509 return AVERROR_INVALIDDATA;
511 dref->type = avio_rl32(pb);
512 avio_rb32(pb); // version + flags
514 if (dref->type == MKTAG('a','l','i','s') && size > 150) {
515 /* macintosh alias record */
516 uint16_t volume_len, len;
522 volume_len = avio_r8(pb);
523 volume_len = FFMIN(volume_len, 27);
524 ret = ffio_read_size(pb, dref->volume, 27);
527 dref->volume[volume_len] = 0;
528 av_log(c->fc, AV_LOG_DEBUG, "volume %s, len %"PRIu16"\n",
529 dref->volume, volume_len);
534 len = FFMIN(len, 63);
535 ret = ffio_read_size(pb, dref->filename, 63);
538 dref->filename[len] = 0;
539 av_log(c->fc, AV_LOG_DEBUG, "filename %s, len %"PRIu16"\n",
540 dref->filename, len);
544 /* read next level up_from_alias/down_to_target */
545 dref->nlvl_from = avio_rb16(pb);
546 dref->nlvl_to = avio_rb16(pb);
547 av_log(c->fc, AV_LOG_DEBUG, "nlvl from %"PRId16", nlvl to %"PRId16"\n",
548 dref->nlvl_from, dref->nlvl_to);
552 for (type = 0; type != -1 && avio_tell(pb) < next; ) {
555 type = avio_rb16(pb);
557 av_log(c->fc, AV_LOG_DEBUG, "type %"PRId16", len %"PRIu16"\n",
561 if (type == 2) { // absolute path
563 dref->path = av_mallocz(len+1);
565 return AVERROR(ENOMEM);
567 ret = ffio_read_size(pb, dref->path, len);
569 av_freep(&dref->path);
572 if (len > volume_len && !strncmp(dref->path, dref->volume, volume_len)) {
574 memmove(dref->path, dref->path+volume_len, len);
577 // trim string of any ending zeros
578 for (j = len - 1; j >= 0; j--) {
579 if (dref->path[j] == 0)
584 for (j = 0; j < len; j++)
585 if (dref->path[j] == ':' || dref->path[j] == 0)
587 av_log(c->fc, AV_LOG_DEBUG, "path %s\n", dref->path);
588 } else if (type == 0) { // directory name
590 dref->dir = av_malloc(len+1);
592 return AVERROR(ENOMEM);
594 ret = ffio_read_size(pb, dref->dir, len);
596 av_freep(&dref->dir);
600 for (j = 0; j < len; j++)
601 if (dref->dir[j] == ':')
603 av_log(c->fc, AV_LOG_DEBUG, "dir %s\n", dref->dir);
608 av_log(c->fc, AV_LOG_DEBUG, "Unknown dref type 0x08%"PRIx32" size %"PRIu32"\n",
613 avio_seek(pb, next, SEEK_SET);
618 static int mov_read_hdlr(MOVContext *c, AVIOContext *pb, MOVAtom atom)
622 uint32_t av_unused ctype;
627 if (c->fc->nb_streams < 1) // meta before first trak
630 st = c->fc->streams[c->fc->nb_streams-1];
632 avio_r8(pb); /* version */
633 avio_rb24(pb); /* flags */
636 ctype = avio_rl32(pb);
637 type = avio_rl32(pb); /* component subtype */
639 av_log(c->fc, AV_LOG_TRACE, "ctype= %.4s (0x%08"PRIx32")\n", (char *)&ctype, ctype);
640 av_log(c->fc, AV_LOG_TRACE, "stype= %.4s\n", (char*)&type);
642 if (type == MKTAG('v','i','d','e'))
643 st->codecpar->codec_type = AVMEDIA_TYPE_VIDEO;
644 else if (type == MKTAG('s','o','u','n'))
645 st->codecpar->codec_type = AVMEDIA_TYPE_AUDIO;
646 else if (type == MKTAG('m','1','a',' '))
647 st->codecpar->codec_id = AV_CODEC_ID_MP2;
648 else if ((type == MKTAG('s','u','b','p')) || (type == MKTAG('c','l','c','p')))
649 st->codecpar->codec_type = AVMEDIA_TYPE_SUBTITLE;
651 avio_rb32(pb); /* component manufacture */
652 avio_rb32(pb); /* component flags */
653 avio_rb32(pb); /* component flags mask */
655 title_size = atom.size - 24;
656 if (title_size > 0) {
657 title_str = av_malloc(title_size + 1); /* Add null terminator */
659 return AVERROR(ENOMEM);
661 ret = ffio_read_size(pb, title_str, title_size);
663 av_freep(&title_str);
666 title_str[title_size] = 0;
668 int off = (!c->isom && title_str[0] == title_size - 1);
669 av_dict_set(&st->metadata, "handler_name", title_str + off, 0);
671 av_freep(&title_str);
677 static int mov_read_esds(MOVContext *c, AVIOContext *pb, MOVAtom atom)
679 return ff_mov_read_esds(c->fc, pb);
682 static int mov_read_dac3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
685 enum AVAudioServiceType *ast;
686 int ac3info, acmod, lfeon, bsmod;
688 if (c->fc->nb_streams < 1)
690 st = c->fc->streams[c->fc->nb_streams-1];
692 ast = (enum AVAudioServiceType*)av_stream_new_side_data(st, AV_PKT_DATA_AUDIO_SERVICE_TYPE,
695 return AVERROR(ENOMEM);
697 ac3info = avio_rb24(pb);
698 bsmod = (ac3info >> 14) & 0x7;
699 acmod = (ac3info >> 11) & 0x7;
700 lfeon = (ac3info >> 10) & 0x1;
701 st->codecpar->channels = ((int[]){2,1,2,3,3,4,4,5})[acmod] + lfeon;
702 st->codecpar->channel_layout = avpriv_ac3_channel_layout_tab[acmod];
704 st->codecpar->channel_layout |= AV_CH_LOW_FREQUENCY;
706 if (st->codecpar->channels > 1 && bsmod == 0x7)
707 *ast = AV_AUDIO_SERVICE_TYPE_KARAOKE;
709 #if FF_API_LAVF_AVCTX
710 FF_DISABLE_DEPRECATION_WARNINGS
711 st->codec->audio_service_type = *ast;
712 FF_ENABLE_DEPRECATION_WARNINGS
718 static int mov_read_dec3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
721 enum AVAudioServiceType *ast;
722 int eac3info, acmod, lfeon, bsmod;
724 if (c->fc->nb_streams < 1)
726 st = c->fc->streams[c->fc->nb_streams-1];
728 ast = (enum AVAudioServiceType*)av_stream_new_side_data(st, AV_PKT_DATA_AUDIO_SERVICE_TYPE,
731 return AVERROR(ENOMEM);
733 /* No need to parse fields for additional independent substreams and its
734 * associated dependent substreams since libavcodec's E-AC-3 decoder
735 * does not support them yet. */
736 avio_rb16(pb); /* data_rate and num_ind_sub */
737 eac3info = avio_rb24(pb);
738 bsmod = (eac3info >> 12) & 0x1f;
739 acmod = (eac3info >> 9) & 0x7;
740 lfeon = (eac3info >> 8) & 0x1;
741 st->codecpar->channel_layout = avpriv_ac3_channel_layout_tab[acmod];
743 st->codecpar->channel_layout |= AV_CH_LOW_FREQUENCY;
744 st->codecpar->channels = av_get_channel_layout_nb_channels(st->codecpar->channel_layout);
746 if (st->codecpar->channels > 1 && bsmod == 0x7)
747 *ast = AV_AUDIO_SERVICE_TYPE_KARAOKE;
749 #if FF_API_LAVF_AVCTX
750 FF_DISABLE_DEPRECATION_WARNINGS
751 st->codec->audio_service_type = *ast;
752 FF_ENABLE_DEPRECATION_WARNINGS
758 static int mov_read_chan(MOVContext *c, AVIOContext *pb, MOVAtom atom)
762 if (c->fc->nb_streams < 1)
764 st = c->fc->streams[c->fc->nb_streams-1];
769 /* skip version and flags */
772 ff_mov_read_chan(c->fc, pb, st, atom.size - 4);
777 static int mov_read_wfex(MOVContext *c, AVIOContext *pb, MOVAtom atom)
781 if (c->fc->nb_streams < 1)
783 st = c->fc->streams[c->fc->nb_streams-1];
785 return ff_get_wav_header(c->fc, pb, st->codecpar, atom.size);
788 static int mov_read_pasp(MOVContext *c, AVIOContext *pb, MOVAtom atom)
790 const int num = avio_rb32(pb);
791 const int den = avio_rb32(pb);
794 if (c->fc->nb_streams < 1)
796 st = c->fc->streams[c->fc->nb_streams-1];
798 if ((st->sample_aspect_ratio.den != 1 || st->sample_aspect_ratio.num) && // default
799 (den != st->sample_aspect_ratio.den || num != st->sample_aspect_ratio.num)) {
800 av_log(c->fc, AV_LOG_WARNING,
801 "sample aspect ratio already set to %d:%d, ignoring 'pasp' atom (%d:%d)\n",
802 st->sample_aspect_ratio.num, st->sample_aspect_ratio.den,
804 } else if (den != 0) {
805 st->sample_aspect_ratio.num = num;
806 st->sample_aspect_ratio.den = den;
811 /* this atom contains actual media data */
812 static int mov_read_mdat(MOVContext *c, AVIOContext *pb, MOVAtom atom)
814 if (atom.size == 0) /* wrong one (MP4) */
817 return 0; /* now go for moov */
820 /* read major brand, minor version and compatible brands and store them as metadata */
821 static int mov_read_ftyp(MOVContext *c, AVIOContext *pb, MOVAtom atom)
825 char minor_ver_str[11]; /* 32 bit integer -> 10 digits + null */
826 char* comp_brands_str;
827 uint8_t type[5] = {0};
828 int ret = ffio_read_size(pb, type, 4);
832 if (strcmp(type, "qt "))
834 av_log(c->fc, AV_LOG_DEBUG, "ISO: File Type Major Brand: %.4s\n",(char *)&type);
835 av_dict_set(&c->fc->metadata, "major_brand", type, 0);
836 minor_ver = avio_rb32(pb); /* minor version */
837 snprintf(minor_ver_str, sizeof(minor_ver_str), "%"PRIu32"", minor_ver);
838 av_dict_set(&c->fc->metadata, "minor_version", minor_ver_str, 0);
840 comp_brand_size = atom.size - 8;
841 if (comp_brand_size < 0)
842 return AVERROR_INVALIDDATA;
843 comp_brands_str = av_malloc(comp_brand_size + 1); /* Add null terminator */
844 if (!comp_brands_str)
845 return AVERROR(ENOMEM);
847 ret = ffio_read_size(pb, comp_brands_str, comp_brand_size);
849 av_freep(&comp_brands_str);
852 comp_brands_str[comp_brand_size] = 0;
853 av_dict_set(&c->fc->metadata, "compatible_brands", comp_brands_str, 0);
854 av_freep(&comp_brands_str);
859 /* this atom should contain all header atoms */
860 static int mov_read_moov(MOVContext *c, AVIOContext *pb, MOVAtom atom)
864 if ((ret = mov_read_default(c, pb, atom)) < 0)
866 /* we parsed the 'moov' atom, we can terminate the parsing as soon as we find the 'mdat' */
867 /* so we don't parse the whole file if over a network */
869 return 0; /* now go for mdat */
872 static int mov_read_moof(MOVContext *c, AVIOContext *pb, MOVAtom atom)
874 c->fragment.moof_offset = c->fragment.implicit_offset = avio_tell(pb) - 8;
875 av_log(c->fc, AV_LOG_TRACE, "moof offset %"PRIx64"\n", c->fragment.moof_offset);
876 return mov_read_default(c, pb, atom);
879 static void mov_metadata_creation_time(AVDictionary **metadata, time_t time)
883 struct tm *ptm, tmbuf;
884 time -= 2082844800; /* seconds between 1904-01-01 and Epoch */
885 ptm = gmtime_r(&time, &tmbuf);
887 if (strftime(buffer, sizeof(buffer), "%Y-%m-%d %H:%M:%S", ptm))
888 av_dict_set(metadata, "creation_time", buffer, 0);
892 static int mov_read_mdhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
895 MOVStreamContext *sc;
897 char language[4] = {0};
899 time_t creation_time;
901 if (c->fc->nb_streams < 1)
903 st = c->fc->streams[c->fc->nb_streams-1];
906 if (sc->time_scale) {
907 av_log(c->fc, AV_LOG_ERROR, "Multiple mdhd?\n");
908 return AVERROR_INVALIDDATA;
911 version = avio_r8(pb);
913 avpriv_request_sample(c->fc, "Version %d", version);
914 return AVERROR_PATCHWELCOME;
916 avio_rb24(pb); /* flags */
918 creation_time = avio_rb64(pb);
921 creation_time = avio_rb32(pb);
922 avio_rb32(pb); /* modification time */
924 mov_metadata_creation_time(&st->metadata, creation_time);
926 sc->time_scale = avio_rb32(pb);
927 st->duration = (version == 1) ? avio_rb64(pb) : avio_rb32(pb); /* duration */
929 lang = avio_rb16(pb); /* language */
930 if (ff_mov_lang_to_iso639(lang, language))
931 av_dict_set(&st->metadata, "language", language, 0);
932 avio_rb16(pb); /* quality */
937 static int mov_read_mvhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
940 time_t creation_time;
941 int version = avio_r8(pb); /* version */
942 avio_rb24(pb); /* flags */
945 creation_time = avio_rb64(pb);
948 creation_time = avio_rb32(pb);
949 avio_rb32(pb); /* modification time */
951 mov_metadata_creation_time(&c->fc->metadata, creation_time);
952 c->time_scale = avio_rb32(pb); /* time scale */
954 av_log(c->fc, AV_LOG_TRACE, "time scale = %i\n", c->time_scale);
956 c->duration = (version == 1) ? avio_rb64(pb) : avio_rb32(pb); /* duration */
957 avio_rb32(pb); /* preferred scale */
959 avio_rb16(pb); /* preferred volume */
961 avio_skip(pb, 10); /* reserved */
963 /* movie display matrix, store it in main context and use it later on */
964 for (i = 0; i < 3; i++) {
965 c->movie_display_matrix[i][0] = avio_rb32(pb); // 16.16 fixed point
966 c->movie_display_matrix[i][1] = avio_rb32(pb); // 16.16 fixed point
967 c->movie_display_matrix[i][2] = avio_rb32(pb); // 2.30 fixed point
970 avio_rb32(pb); /* preview time */
971 avio_rb32(pb); /* preview duration */
972 avio_rb32(pb); /* poster time */
973 avio_rb32(pb); /* selection time */
974 avio_rb32(pb); /* selection duration */
975 avio_rb32(pb); /* current time */
976 avio_rb32(pb); /* next track ID */
981 static int mov_read_smi(MOVContext *c, AVIOContext *pb, MOVAtom atom)
986 if (c->fc->nb_streams < 1)
988 st = c->fc->streams[c->fc->nb_streams-1];
990 if ((uint64_t)atom.size > (1<<30))
991 return AVERROR_INVALIDDATA;
993 // currently SVQ3 decoder expect full STSD header - so let's fake it
994 // this should be fixed and just SMI header should be passed
995 av_free(st->codecpar->extradata);
996 st->codecpar->extradata = av_mallocz(atom.size + 0x5a + AV_INPUT_BUFFER_PADDING_SIZE);
997 if (!st->codecpar->extradata)
998 return AVERROR(ENOMEM);
999 st->codecpar->extradata_size = 0x5a + atom.size;
1000 memcpy(st->codecpar->extradata, "SVQ3", 4); // fake
1002 ret = ffio_read_size(pb, st->codecpar->extradata + 0x5a, atom.size);
1006 av_log(c->fc, AV_LOG_TRACE, "Reading SMI %"PRId64" %s\n", atom.size, st->codecpar->extradata + 0x5a);
1010 static int mov_read_enda(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1015 if (c->fc->nb_streams < 1)
1017 st = c->fc->streams[c->fc->nb_streams-1];
1019 little_endian = !!avio_rb16(pb);
1020 av_log(c->fc, AV_LOG_TRACE, "enda %d\n", little_endian);
1021 if (little_endian == 1) {
1022 switch (st->codecpar->codec_id) {
1023 case AV_CODEC_ID_PCM_S24BE:
1024 st->codecpar->codec_id = AV_CODEC_ID_PCM_S24LE;
1026 case AV_CODEC_ID_PCM_S32BE:
1027 st->codecpar->codec_id = AV_CODEC_ID_PCM_S32LE;
1029 case AV_CODEC_ID_PCM_F32BE:
1030 st->codecpar->codec_id = AV_CODEC_ID_PCM_F32LE;
1032 case AV_CODEC_ID_PCM_F64BE:
1033 st->codecpar->codec_id = AV_CODEC_ID_PCM_F64LE;
1042 static int mov_read_colr(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1045 char color_parameter_type[5] = { 0 };
1046 uint16_t color_primaries, color_trc, color_matrix;
1049 if (c->fc->nb_streams < 1)
1051 st = c->fc->streams[c->fc->nb_streams - 1];
1053 ret = ffio_read_size(pb, color_parameter_type, 4);
1056 if (strncmp(color_parameter_type, "nclx", 4) &&
1057 strncmp(color_parameter_type, "nclc", 4)) {
1058 av_log(c->fc, AV_LOG_WARNING, "unsupported color_parameter_type %s\n",
1059 color_parameter_type);
1063 color_primaries = avio_rb16(pb);
1064 color_trc = avio_rb16(pb);
1065 color_matrix = avio_rb16(pb);
1067 av_log(c->fc, AV_LOG_TRACE,
1068 "%s: pri %"PRIu16" trc %"PRIu16" matrix %"PRIu16"",
1069 color_parameter_type, color_primaries, color_trc, color_matrix);
1071 if (!strncmp(color_parameter_type, "nclx", 4)) {
1072 uint8_t color_range = avio_r8(pb) >> 7;
1073 av_log(c->fc, AV_LOG_TRACE, " full %"PRIu8"", color_range);
1075 st->codecpar->color_range = AVCOL_RANGE_JPEG;
1077 st->codecpar->color_range = AVCOL_RANGE_MPEG;
1079 if (!av_color_primaries_name(color_primaries))
1080 color_primaries = AVCOL_PRI_UNSPECIFIED;
1081 if (!av_color_transfer_name(color_trc))
1082 color_trc = AVCOL_TRC_UNSPECIFIED;
1083 if (!av_color_space_name(color_matrix))
1084 color_matrix = AVCOL_SPC_UNSPECIFIED;
1086 st->codecpar->color_primaries = color_primaries;
1087 st->codecpar->color_trc = color_trc;
1088 st->codecpar->color_space = color_matrix;
1089 } else if (!strncmp(color_parameter_type, "nclc", 4)) {
1090 /* color primaries, Table 4-4 */
1091 switch (color_primaries) {
1092 case 1: st->codecpar->color_primaries = AVCOL_PRI_BT709; break;
1093 case 5: st->codecpar->color_primaries = AVCOL_PRI_SMPTE170M; break;
1094 case 6: st->codecpar->color_primaries = AVCOL_PRI_SMPTE240M; break;
1095 case 9: st->codecpar->color_primaries = AVCOL_PRI_BT2020; break;
1096 case 10: st->codecpar->color_primaries = AVCOL_PRI_SMPTE431; break;
1097 case 11: st->codecpar->color_primaries = AVCOL_PRI_SMPTE432; break;
1099 /* color transfer, Table 4-5 */
1100 switch (color_trc) {
1101 case 1: st->codecpar->color_trc = AVCOL_TRC_BT709; break;
1102 case 7: st->codecpar->color_trc = AVCOL_TRC_SMPTE240M; break;
1103 case 17: st->codecpar->color_trc = AVCOL_TRC_SMPTE428; break;
1105 /* color matrix, Table 4-6 */
1106 switch (color_matrix) {
1107 case 1: st->codecpar->color_space = AVCOL_SPC_BT709; break;
1108 case 6: st->codecpar->color_space = AVCOL_SPC_BT470BG; break;
1109 case 7: st->codecpar->color_space = AVCOL_SPC_SMPTE240M; break;
1110 case 9: st->codecpar->color_space = AVCOL_SPC_BT2020_NCL; break;
1113 av_log(c->fc, AV_LOG_TRACE, "\n");
1118 static int mov_read_fiel(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1121 unsigned mov_field_order;
1122 enum AVFieldOrder decoded_field_order = AV_FIELD_UNKNOWN;
1124 if (c->fc->nb_streams < 1) // will happen with jp2 files
1126 st = c->fc->streams[c->fc->nb_streams-1];
1128 return AVERROR_INVALIDDATA;
1129 mov_field_order = avio_rb16(pb);
1130 if ((mov_field_order & 0xFF00) == 0x0100)
1131 decoded_field_order = AV_FIELD_PROGRESSIVE;
1132 else if ((mov_field_order & 0xFF00) == 0x0200) {
1133 switch (mov_field_order & 0xFF) {
1134 case 0x01: decoded_field_order = AV_FIELD_TT;
1136 case 0x06: decoded_field_order = AV_FIELD_BB;
1138 case 0x09: decoded_field_order = AV_FIELD_TB;
1140 case 0x0E: decoded_field_order = AV_FIELD_BT;
1144 if (decoded_field_order == AV_FIELD_UNKNOWN && mov_field_order) {
1145 av_log(NULL, AV_LOG_ERROR, "Unknown MOV field order 0x%04x\n", mov_field_order);
1147 st->codecpar->field_order = decoded_field_order;
1152 /* FIXME modify QDM2/SVQ3/H.264 decoders to take full atom as extradata */
1153 static int mov_read_extradata(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1160 if (c->fc->nb_streams < 1) // will happen with jp2 files
1162 st= c->fc->streams[c->fc->nb_streams-1];
1163 size= (uint64_t)st->codecpar->extradata_size + atom.size + 8 + AV_INPUT_BUFFER_PADDING_SIZE;
1164 if (size > INT_MAX || (uint64_t)atom.size > INT_MAX)
1165 return AVERROR_INVALIDDATA;
1166 if ((err = av_reallocp(&st->codecpar->extradata, size)) < 0) {
1167 st->codecpar->extradata_size = 0;
1170 buf = st->codecpar->extradata + st->codecpar->extradata_size;
1171 st->codecpar->extradata_size= size - AV_INPUT_BUFFER_PADDING_SIZE;
1172 AV_WB32( buf , atom.size + 8);
1173 AV_WL32( buf + 4, atom.type);
1175 err = ffio_read_size(pb, buf + 8, atom.size);
1182 static int mov_read_wave(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1187 if (c->fc->nb_streams < 1)
1189 st = c->fc->streams[c->fc->nb_streams-1];
1191 if ((uint64_t)atom.size > (1<<30))
1192 return AVERROR_INVALIDDATA;
1194 if (st->codecpar->codec_id == AV_CODEC_ID_QDM2 || st->codecpar->codec_id == AV_CODEC_ID_QDMC) {
1195 // pass all frma atom to codec, needed at least for QDMC and QDM2
1196 av_free(st->codecpar->extradata);
1197 st->codecpar->extradata = av_mallocz(atom.size + AV_INPUT_BUFFER_PADDING_SIZE);
1198 if (!st->codecpar->extradata)
1199 return AVERROR(ENOMEM);
1200 st->codecpar->extradata_size = atom.size;
1202 ret = ffio_read_size(pb, st->codecpar->extradata, atom.size);
1205 } else if (atom.size > 8) { /* to read frma, esds atoms */
1206 if ((ret = mov_read_default(c, pb, atom)) < 0)
1209 avio_skip(pb, atom.size);
1214 * This function reads atom content and puts data in extradata without tag
1215 * nor size unlike mov_read_extradata.
1217 static int mov_read_glbl(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1222 if (c->fc->nb_streams < 1)
1224 st = c->fc->streams[c->fc->nb_streams-1];
1226 if ((uint64_t)atom.size > (1<<30))
1227 return AVERROR_INVALIDDATA;
1229 if (atom.size >= 10) {
1230 // Broken files created by legacy versions of libavformat will
1231 // wrap a whole fiel atom inside of a glbl atom.
1232 unsigned size = avio_rb32(pb);
1233 unsigned type = avio_rl32(pb);
1234 avio_seek(pb, -8, SEEK_CUR);
1235 if (type == MKTAG('f','i','e','l') && size == atom.size)
1236 return mov_read_default(c, pb, atom);
1238 av_free(st->codecpar->extradata);
1239 st->codecpar->extradata = av_mallocz(atom.size + AV_INPUT_BUFFER_PADDING_SIZE);
1240 if (!st->codecpar->extradata)
1241 return AVERROR(ENOMEM);
1242 st->codecpar->extradata_size = atom.size;
1244 ret = ffio_read_size(pb, st->codecpar->extradata, atom.size);
1251 static int mov_read_dvc1(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1254 uint8_t profile_level;
1257 if (c->fc->nb_streams < 1)
1259 st = c->fc->streams[c->fc->nb_streams-1];
1261 if (atom.size >= (1<<28) || atom.size < 7)
1262 return AVERROR_INVALIDDATA;
1264 profile_level = avio_r8(pb);
1265 if ((profile_level & 0xf0) != 0xc0)
1268 av_free(st->codecpar->extradata);
1269 st->codecpar->extradata = av_mallocz(atom.size - 7 + AV_INPUT_BUFFER_PADDING_SIZE);
1270 if (!st->codecpar->extradata)
1271 return AVERROR(ENOMEM);
1272 st->codecpar->extradata_size = atom.size - 7;
1273 avio_seek(pb, 6, SEEK_CUR);
1275 ret = ffio_read_size(pb, st->codecpar->extradata, st->codecpar->extradata_size);
1283 * An strf atom is a BITMAPINFOHEADER struct. This struct is 40 bytes itself,
1284 * but can have extradata appended at the end after the 40 bytes belonging
1287 static int mov_read_strf(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1292 if (c->fc->nb_streams < 1)
1294 if (atom.size <= 40)
1296 st = c->fc->streams[c->fc->nb_streams-1];
1298 if ((uint64_t)atom.size > (1<<30))
1299 return AVERROR_INVALIDDATA;
1301 av_free(st->codecpar->extradata);
1302 st->codecpar->extradata = av_mallocz(atom.size - 40 + AV_INPUT_BUFFER_PADDING_SIZE);
1303 if (!st->codecpar->extradata)
1304 return AVERROR(ENOMEM);
1305 st->codecpar->extradata_size = atom.size - 40;
1308 ret = ffio_read_size(pb, st->codecpar->extradata, atom.size - 40);
1315 static int mov_read_stco(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1318 MOVStreamContext *sc;
1319 unsigned int i, entries;
1321 if (c->fc->nb_streams < 1)
1323 st = c->fc->streams[c->fc->nb_streams-1];
1326 avio_r8(pb); /* version */
1327 avio_rb24(pb); /* flags */
1329 entries = avio_rb32(pb);
1333 if (entries >= UINT_MAX/sizeof(int64_t))
1334 return AVERROR_INVALIDDATA;
1336 sc->chunk_offsets = av_malloc(entries * sizeof(int64_t));
1337 if (!sc->chunk_offsets)
1338 return AVERROR(ENOMEM);
1339 sc->chunk_count = entries;
1341 if (atom.type == MKTAG('s','t','c','o'))
1342 for (i = 0; i < entries && !pb->eof_reached; i++)
1343 sc->chunk_offsets[i] = avio_rb32(pb);
1344 else if (atom.type == MKTAG('c','o','6','4'))
1345 for (i = 0; i < entries && !pb->eof_reached; i++)
1346 sc->chunk_offsets[i] = avio_rb64(pb);
1348 return AVERROR_INVALIDDATA;
1350 sc->chunk_count = i;
1352 if (pb->eof_reached)
1358 static int mov_codec_id(AVStream *st, uint32_t format)
1360 int id = ff_codec_get_id(ff_codec_movaudio_tags, format);
1363 ((format & 0xFFFF) == 'm' + ('s' << 8) ||
1364 (format & 0xFFFF) == 'T' + ('S' << 8)))
1365 id = ff_codec_get_id(ff_codec_wav_tags, av_bswap32(format) & 0xFFFF);
1367 if (st->codecpar->codec_type != AVMEDIA_TYPE_VIDEO && id > 0) {
1368 st->codecpar->codec_type = AVMEDIA_TYPE_AUDIO;
1369 } else if (st->codecpar->codec_type != AVMEDIA_TYPE_AUDIO &&
1370 /* skip old ASF MPEG-4 tag */
1371 format && format != MKTAG('m','p','4','s')) {
1372 id = ff_codec_get_id(ff_codec_movvideo_tags, format);
1374 id = ff_codec_get_id(ff_codec_bmp_tags, format);
1376 st->codecpar->codec_type = AVMEDIA_TYPE_VIDEO;
1377 else if (st->codecpar->codec_type == AVMEDIA_TYPE_DATA) {
1378 id = ff_codec_get_id(ff_codec_movsubtitle_tags, format);
1380 st->codecpar->codec_type = AVMEDIA_TYPE_SUBTITLE;
1384 st->codecpar->codec_tag = format;
1389 static void mov_parse_stsd_video(MOVContext *c, AVIOContext *pb,
1390 AVStream *st, MOVStreamContext *sc)
1392 uint8_t codec_name[32];
1393 unsigned int color_depth, len, j;
1394 int color_greyscale;
1397 avio_rb16(pb); /* version */
1398 avio_rb16(pb); /* revision level */
1399 avio_rb32(pb); /* vendor */
1400 avio_rb32(pb); /* temporal quality */
1401 avio_rb32(pb); /* spatial quality */
1403 st->codecpar->width = avio_rb16(pb); /* width */
1404 st->codecpar->height = avio_rb16(pb); /* height */
1406 avio_rb32(pb); /* horiz resolution */
1407 avio_rb32(pb); /* vert resolution */
1408 avio_rb32(pb); /* data size, always 0 */
1409 avio_rb16(pb); /* frames per samples */
1411 len = avio_r8(pb); /* codec name, pascal string */
1414 mov_read_mac_string(c, pb, len, codec_name, sizeof(codec_name));
1416 avio_skip(pb, 31 - len);
1419 av_dict_set(&st->metadata, "encoder", codec_name, 0);
1421 /* codec_tag YV12 triggers an UV swap in rawdec.c */
1422 if (!strncmp(codec_name, "Planar Y'CbCr 8-bit 4:2:0", 25))
1423 st->codecpar->codec_tag = MKTAG('I', '4', '2', '0');
1424 /* Flash Media Server uses tag H.263 with Sorenson Spark */
1425 if (st->codecpar->codec_tag == MKTAG('H','2','6','3') &&
1426 !strncmp(codec_name, "Sorenson H263", 13))
1427 st->codecpar->codec_id = AV_CODEC_ID_FLV1;
1429 st->codecpar->bits_per_coded_sample = avio_rb16(pb); /* depth */
1430 color_table_id = avio_rb16(pb); /* colortable id */
1431 av_log(c->fc, AV_LOG_TRACE, "depth %d, ctab id %d\n",
1432 st->codecpar->bits_per_coded_sample, color_table_id);
1433 /* figure out the palette situation */
1434 color_depth = st->codecpar->bits_per_coded_sample & 0x1F;
1435 color_greyscale = st->codecpar->bits_per_coded_sample & 0x20;
1437 /* if the depth is 2, 4, or 8 bpp, file is palettized */
1438 if ((color_depth == 2) || (color_depth == 4) || (color_depth == 8)) {
1439 /* for palette traversal */
1440 unsigned int color_start, color_count, color_end;
1441 unsigned char r, g, b;
1443 if (color_greyscale) {
1444 int color_index, color_dec;
1445 /* compute the greyscale palette */
1446 st->codecpar->bits_per_coded_sample = color_depth;
1447 color_count = 1 << color_depth;
1449 color_dec = 256 / (color_count - 1);
1450 for (j = 0; j < color_count; j++) {
1451 r = g = b = color_index;
1452 sc->palette[j] = (r << 16) | (g << 8) | (b);
1453 color_index -= color_dec;
1454 if (color_index < 0)
1457 } else if (color_table_id) {
1458 const uint8_t *color_table;
1459 /* if flag bit 3 is set, use the default palette */
1460 color_count = 1 << color_depth;
1461 if (color_depth == 2)
1462 color_table = ff_qt_default_palette_4;
1463 else if (color_depth == 4)
1464 color_table = ff_qt_default_palette_16;
1466 color_table = ff_qt_default_palette_256;
1468 for (j = 0; j < color_count; j++) {
1469 r = color_table[j * 3 + 0];
1470 g = color_table[j * 3 + 1];
1471 b = color_table[j * 3 + 2];
1472 sc->palette[j] = (r << 16) | (g << 8) | (b);
1475 /* load the palette from the file */
1476 color_start = avio_rb32(pb);
1477 color_count = avio_rb16(pb);
1478 color_end = avio_rb16(pb);
1479 if ((color_start <= 255) && (color_end <= 255)) {
1480 for (j = color_start; j <= color_end; j++) {
1481 /* each R, G, or B component is 16 bits;
1482 * only use the top 8 bits; skip alpha bytes
1492 sc->palette[j] = (r << 16) | (g << 8) | (b);
1496 sc->has_palette = 1;
1500 static void mov_parse_stsd_audio(MOVContext *c, AVIOContext *pb,
1501 AVStream *st, MOVStreamContext *sc)
1503 int bits_per_sample, flags;
1504 uint16_t version = avio_rb16(pb);
1506 avio_rb16(pb); /* revision level */
1507 avio_rb32(pb); /* vendor */
1509 st->codecpar->channels = avio_rb16(pb); /* channel count */
1510 st->codecpar->bits_per_coded_sample = avio_rb16(pb); /* sample size */
1511 av_log(c->fc, AV_LOG_TRACE, "audio channels %d\n", st->codecpar->channels);
1513 sc->audio_cid = avio_rb16(pb);
1514 avio_rb16(pb); /* packet size = 0 */
1516 st->codecpar->sample_rate = ((avio_rb32(pb) >> 16));
1518 // Read QT version 1 fields. In version 0 these do not exist.
1519 av_log(c->fc, AV_LOG_TRACE, "version =%"PRIu16", isom =%d\n", version, c->isom);
1522 sc->samples_per_frame = avio_rb32(pb);
1523 avio_rb32(pb); /* bytes per packet */
1524 sc->bytes_per_frame = avio_rb32(pb);
1525 avio_rb32(pb); /* bytes per sample */
1526 } else if (version == 2) {
1527 avio_rb32(pb); /* sizeof struct only */
1528 st->codecpar->sample_rate = av_int2double(avio_rb64(pb));
1529 st->codecpar->channels = avio_rb32(pb);
1530 avio_rb32(pb); /* always 0x7F000000 */
1531 st->codecpar->bits_per_coded_sample = avio_rb32(pb);
1533 flags = avio_rb32(pb); /* lpcm format specific flag */
1534 sc->bytes_per_frame = avio_rb32(pb);
1535 sc->samples_per_frame = avio_rb32(pb);
1536 if (st->codecpar->codec_tag == MKTAG('l','p','c','m'))
1537 st->codecpar->codec_id =
1538 ff_mov_get_lpcm_codec_id(st->codecpar->bits_per_coded_sample,
1541 if (version == 0 || (version == 1 && sc->audio_cid != -2)) {
1542 /* can't correctly handle variable sized packet as audio unit */
1543 switch (st->codecpar->codec_id) {
1544 case AV_CODEC_ID_MP2:
1545 case AV_CODEC_ID_MP3:
1546 st->need_parsing = AVSTREAM_PARSE_FULL;
1552 switch (st->codecpar->codec_id) {
1553 case AV_CODEC_ID_PCM_S8:
1554 case AV_CODEC_ID_PCM_U8:
1555 if (st->codecpar->bits_per_coded_sample == 16)
1556 st->codecpar->codec_id = AV_CODEC_ID_PCM_S16BE;
1558 case AV_CODEC_ID_PCM_S16LE:
1559 case AV_CODEC_ID_PCM_S16BE:
1560 if (st->codecpar->bits_per_coded_sample == 8)
1561 st->codecpar->codec_id = AV_CODEC_ID_PCM_S8;
1562 else if (st->codecpar->bits_per_coded_sample == 24)
1563 st->codecpar->codec_id =
1564 st->codecpar->codec_id == AV_CODEC_ID_PCM_S16BE ?
1565 AV_CODEC_ID_PCM_S24BE : AV_CODEC_ID_PCM_S24LE;
1567 /* set values for old format before stsd version 1 appeared */
1568 case AV_CODEC_ID_MACE3:
1569 sc->samples_per_frame = 6;
1570 sc->bytes_per_frame = 2 * st->codecpar->channels;
1572 case AV_CODEC_ID_MACE6:
1573 sc->samples_per_frame = 6;
1574 sc->bytes_per_frame = 1 * st->codecpar->channels;
1576 case AV_CODEC_ID_ADPCM_IMA_QT:
1577 sc->samples_per_frame = 64;
1578 sc->bytes_per_frame = 34 * st->codecpar->channels;
1580 case AV_CODEC_ID_GSM:
1581 sc->samples_per_frame = 160;
1582 sc->bytes_per_frame = 33;
1588 bits_per_sample = av_get_bits_per_sample(st->codecpar->codec_id);
1589 if (bits_per_sample) {
1590 st->codecpar->bits_per_coded_sample = bits_per_sample;
1591 sc->sample_size = (bits_per_sample >> 3) * st->codecpar->channels;
1595 static void mov_parse_stsd_subtitle(MOVContext *c, AVIOContext *pb,
1596 AVStream *st, MOVStreamContext *sc,
1599 // ttxt stsd contains display flags, justification, background
1600 // color, fonts, and default styles, so fake an atom to read it
1601 MOVAtom fake_atom = { .size = size };
1602 // mp4s contains a regular esds atom
1603 if (st->codecpar->codec_tag != AV_RL32("mp4s"))
1604 mov_read_glbl(c, pb, fake_atom);
1605 st->codecpar->width = sc->width;
1606 st->codecpar->height = sc->height;
1609 static uint32_t yuv_to_rgba(uint32_t ycbcr)
1614 y = (ycbcr >> 16) & 0xFF;
1615 cr = (ycbcr >> 8) & 0xFF;
1618 b = av_clip_uint8(1.164 * (y - 16) + 2.018 * (cb - 128));
1619 g = av_clip_uint8(1.164 * (y - 16) - 0.813 * (cr - 128) - 0.391 * (cb - 128));
1620 r = av_clip_uint8(1.164 * (y - 16) + 1.596 * (cr - 128));
1622 return (r << 16) | (g << 8) | b;
1625 static int mov_rewrite_dvd_sub_extradata(AVStream *st)
1627 char buf[256] = {0};
1628 uint8_t *src = st->codecpar->extradata;
1631 if (st->codecpar->extradata_size != 64)
1634 if (st->codecpar->width > 0 && st->codecpar->height > 0)
1635 snprintf(buf, sizeof(buf), "size: %dx%d\n",
1636 st->codecpar->width, st->codecpar->height);
1637 av_strlcat(buf, "palette: ", sizeof(buf));
1639 for (i = 0; i < 16; i++) {
1640 uint32_t yuv = AV_RB32(src + i * 4);
1641 uint32_t rgba = yuv_to_rgba(yuv);
1643 av_strlcatf(buf, sizeof(buf), "%06"PRIx32"%s", rgba, i != 15 ? ", " : "");
1646 if (av_strlcat(buf, "\n", sizeof(buf)) >= sizeof(buf))
1649 av_freep(&st->codecpar->extradata);
1650 st->codecpar->extradata_size = 0;
1651 st->codecpar->extradata = av_mallocz(strlen(buf) + AV_INPUT_BUFFER_PADDING_SIZE);
1652 if (!st->codecpar->extradata)
1653 return AVERROR(ENOMEM);
1654 st->codecpar->extradata_size = strlen(buf);
1655 memcpy(st->codecpar->extradata, buf, st->codecpar->extradata_size);
1660 static int mov_parse_stsd_data(MOVContext *c, AVIOContext *pb,
1661 AVStream *st, MOVStreamContext *sc,
1666 if (st->codecpar->codec_tag == MKTAG('t','m','c','d')) {
1667 st->codecpar->extradata_size = size;
1668 st->codecpar->extradata = av_malloc(size + AV_INPUT_BUFFER_PADDING_SIZE);
1669 if (!st->codecpar->extradata)
1670 return AVERROR(ENOMEM);
1671 ret = ffio_read_size(pb, st->codecpar->extradata, size);
1675 /* other codec type, just skip (rtp, mp4s ...) */
1676 avio_skip(pb, size);
1681 static int mov_finalize_stsd_codec(MOVContext *c, AVIOContext *pb,
1682 AVStream *st, MOVStreamContext *sc)
1684 if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO &&
1685 !st->codecpar->sample_rate && sc->time_scale > 1)
1686 st->codecpar->sample_rate = sc->time_scale;
1688 /* special codec parameters handling */
1689 switch (st->codecpar->codec_id) {
1690 #if CONFIG_DV_DEMUXER
1691 case AV_CODEC_ID_DVAUDIO:
1692 c->dv_fctx = avformat_alloc_context();
1694 av_log(c->fc, AV_LOG_ERROR, "dv demux context alloc error\n");
1695 return AVERROR(ENOMEM);
1697 c->dv_demux = avpriv_dv_init_demux(c->dv_fctx);
1699 av_log(c->fc, AV_LOG_ERROR, "dv demux context init error\n");
1700 return AVERROR(ENOMEM);
1702 sc->dv_audio_container = 1;
1703 st->codecpar->codec_id = AV_CODEC_ID_PCM_S16LE;
1706 /* no ifdef since parameters are always those */
1707 case AV_CODEC_ID_QCELP:
1708 st->codecpar->channels = 1;
1709 // force sample rate for qcelp when not stored in mov
1710 if (st->codecpar->codec_tag != MKTAG('Q','c','l','p'))
1711 st->codecpar->sample_rate = 8000;
1713 case AV_CODEC_ID_AMR_NB:
1714 st->codecpar->channels = 1;
1715 /* force sample rate for amr, stsd in 3gp does not store sample rate */
1716 st->codecpar->sample_rate = 8000;
1718 case AV_CODEC_ID_AMR_WB:
1719 st->codecpar->channels = 1;
1720 st->codecpar->sample_rate = 16000;
1722 case AV_CODEC_ID_MP2:
1723 case AV_CODEC_ID_MP3:
1724 /* force type after stsd for m1a hdlr */
1725 st->codecpar->codec_type = AVMEDIA_TYPE_AUDIO;
1727 case AV_CODEC_ID_GSM:
1728 case AV_CODEC_ID_ADPCM_MS:
1729 case AV_CODEC_ID_ADPCM_IMA_WAV:
1730 case AV_CODEC_ID_ILBC:
1731 st->codecpar->block_align = sc->bytes_per_frame;
1733 case AV_CODEC_ID_ALAC:
1734 if (st->codecpar->extradata_size == 36) {
1735 st->codecpar->channels = AV_RB8 (st->codecpar->extradata + 21);
1736 st->codecpar->sample_rate = AV_RB32(st->codecpar->extradata + 32);
1739 case AV_CODEC_ID_VC1:
1740 st->need_parsing = AVSTREAM_PARSE_FULL;
1748 static int mov_skip_multiple_stsd(MOVContext *c, AVIOContext *pb,
1749 int codec_tag, int format,
1752 int video_codec_id = ff_codec_get_id(ff_codec_movvideo_tags, format);
1755 (codec_tag != format &&
1756 // prores is allowed to have differing data format and codec tag
1757 codec_tag != AV_RL32("apcn") && codec_tag != AV_RL32("apch") &&
1759 codec_tag != AV_RL32("dvpp") && codec_tag != AV_RL32("dvcp") &&
1760 (c->fc->video_codec_id ? video_codec_id != c->fc->video_codec_id
1761 : codec_tag != MKTAG('j','p','e','g')))) {
1762 /* Multiple fourcc, we skip JPEG. This is not correct, we should
1763 * export it as a separate AVStream but this needs a few changes
1764 * in the MOV demuxer, patch welcome. */
1766 av_log(c->fc, AV_LOG_WARNING, "multiple fourcc not supported\n");
1767 avio_skip(pb, size);
1774 int ff_mov_read_stsd_entries(MOVContext *c, AVIOContext *pb, int entries)
1777 MOVStreamContext *sc;
1778 int pseudo_stream_id;
1780 if (c->fc->nb_streams < 1)
1782 st = c->fc->streams[c->fc->nb_streams-1];
1785 for (pseudo_stream_id = 0;
1786 pseudo_stream_id < entries && !pb->eof_reached;
1787 pseudo_stream_id++) {
1788 //Parsing Sample description table
1790 int ret, dref_id = 1;
1791 MOVAtom a = { AV_RL32("stsd") };
1792 int64_t start_pos = avio_tell(pb);
1793 int64_t size = avio_rb32(pb); /* size */
1794 uint32_t format = avio_rl32(pb); /* data format */
1797 avio_rb32(pb); /* reserved */
1798 avio_rb16(pb); /* reserved */
1799 dref_id = avio_rb16(pb);
1801 av_log(c->fc, AV_LOG_ERROR,
1802 "invalid size %"PRId64" in stsd\n", size);
1803 return AVERROR_INVALIDDATA;
1806 if (mov_skip_multiple_stsd(c, pb, st->codecpar->codec_tag, format,
1807 size - (avio_tell(pb) - start_pos)))
1810 sc->pseudo_stream_id = st->codecpar->codec_tag ? -1 : pseudo_stream_id;
1811 sc->dref_id= dref_id;
1813 id = mov_codec_id(st, format);
1815 av_log(c->fc, AV_LOG_TRACE,
1816 "size=%"PRId64" format=0x%08"PRIx32" codec_type=%d\n",
1817 size, format, st->codecpar->codec_type);
1819 if (st->codecpar->codec_type==AVMEDIA_TYPE_VIDEO) {
1820 st->codecpar->codec_id = id;
1821 mov_parse_stsd_video(c, pb, st, sc);
1822 } else if (st->codecpar->codec_type==AVMEDIA_TYPE_AUDIO) {
1823 st->codecpar->codec_id = id;
1824 mov_parse_stsd_audio(c, pb, st, sc);
1825 } else if (st->codecpar->codec_type==AVMEDIA_TYPE_SUBTITLE){
1826 st->codecpar->codec_id = id;
1827 mov_parse_stsd_subtitle(c, pb, st, sc,
1828 size - (avio_tell(pb) - start_pos));
1830 ret = mov_parse_stsd_data(c, pb, st, sc,
1831 size - (avio_tell(pb) - start_pos));
1835 /* this will read extra atoms at the end (wave, alac, damr, avcC, hvcC, SMI ...) */
1836 a.size = size - (avio_tell(pb) - start_pos);
1838 if ((ret = mov_read_default(c, pb, a)) < 0)
1840 } else if (a.size > 0)
1841 avio_skip(pb, a.size);
1843 if (sc->extradata) {
1844 int extra_size = st->codecpar->extradata_size;
1846 /* Move the current stream extradata to the stream context one. */
1847 sc->extradata_size[pseudo_stream_id] = extra_size;
1848 sc->extradata[pseudo_stream_id] = av_malloc(extra_size + AV_INPUT_BUFFER_PADDING_SIZE);
1849 if (!sc->extradata[pseudo_stream_id])
1850 return AVERROR(ENOMEM);
1851 memcpy(sc->extradata[pseudo_stream_id], st->codecpar->extradata, extra_size);
1852 av_freep(&st->codecpar->extradata);
1853 st->codecpar->extradata_size = 0;
1857 if (pb->eof_reached)
1863 static int mov_read_stsd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1866 MOVStreamContext *sc;
1869 if (c->fc->nb_streams < 1)
1871 st = c->fc->streams[c->fc->nb_streams - 1];
1874 avio_r8(pb); /* version */
1875 avio_rb24(pb); /* flags */
1876 entries = avio_rb32(pb);
1879 av_log(c->fc, AV_LOG_ERROR, "invalid STSD entries %d\n", entries);
1880 return AVERROR_INVALIDDATA;
1883 if (sc->extradata) {
1884 av_log(c->fc, AV_LOG_ERROR,
1885 "Duplicate stsd found in this track.\n");
1886 return AVERROR_INVALIDDATA;
1889 /* Prepare space for hosting multiple extradata. */
1890 sc->extradata = av_mallocz_array(entries, sizeof(*sc->extradata));
1892 return AVERROR(ENOMEM);
1894 sc->extradata_size = av_mallocz_array(entries, sizeof(*sc->extradata_size));
1895 if (!sc->extradata_size) {
1896 ret = AVERROR(ENOMEM);
1900 ret = ff_mov_read_stsd_entries(c, pb, entries);
1904 sc->stsd_count = entries;
1906 /* Restore back the primary extradata. */
1907 av_free(st->codecpar->extradata);
1908 st->codecpar->extradata_size = sc->extradata_size[0];
1909 st->codecpar->extradata = av_mallocz(sc->extradata_size[0] + AV_INPUT_BUFFER_PADDING_SIZE);
1910 if (!st->codecpar->extradata) {
1911 ret = AVERROR(ENOMEM);
1914 memcpy(st->codecpar->extradata, sc->extradata[0], sc->extradata_size[0]);
1916 return mov_finalize_stsd_codec(c, pb, st, sc);
1918 av_freep(&sc->extradata);
1919 av_freep(&sc->extradata_size);
1923 static int mov_read_stsc(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1926 MOVStreamContext *sc;
1927 unsigned int i, entries;
1929 if (c->fc->nb_streams < 1)
1931 st = c->fc->streams[c->fc->nb_streams-1];
1934 avio_r8(pb); /* version */
1935 avio_rb24(pb); /* flags */
1937 entries = avio_rb32(pb);
1939 av_log(c->fc, AV_LOG_TRACE, "track[%u].stsc.entries = %u\n", c->fc->nb_streams - 1, entries);
1943 if (entries >= UINT_MAX / sizeof(*sc->stsc_data))
1944 return AVERROR_INVALIDDATA;
1945 sc->stsc_data = av_malloc(entries * sizeof(*sc->stsc_data));
1947 return AVERROR(ENOMEM);
1949 for (i = 0; i < entries && !pb->eof_reached; i++) {
1950 sc->stsc_data[i].first = avio_rb32(pb);
1951 sc->stsc_data[i].count = avio_rb32(pb);
1952 sc->stsc_data[i].id = avio_rb32(pb);
1953 if (sc->stsc_data[i].id <= 0 || sc->stsc_data[i].id > sc->stsd_count) {
1954 sc->stsc_data[i].id = 1;
1955 if (c->fc->error_recognition & AV_EF_EXPLODE) {
1956 av_log(c->fc, AV_LOG_ERROR, "Invalid stsc index.\n");
1957 return AVERROR_INVALIDDATA;
1964 if (pb->eof_reached)
1970 static inline int mov_stsc_index_valid(unsigned int index, unsigned int count)
1972 return index < count - 1;
1975 /* Compute the samples value for the stsc entry at the given index. */
1976 static inline int mov_get_stsc_samples(MOVStreamContext *sc, unsigned int index)
1980 if (mov_stsc_index_valid(index, sc->stsc_count))
1981 chunk_count = sc->stsc_data[index + 1].first - sc->stsc_data[index].first;
1983 chunk_count = sc->chunk_count - (sc->stsc_data[index].first - 1);
1985 return sc->stsc_data[index].count * chunk_count;
1988 static int mov_read_stps(MOVContext *c, AVIOContext *pb, MOVAtom atom)
1991 MOVStreamContext *sc;
1992 unsigned i, entries;
1994 if (c->fc->nb_streams < 1)
1996 st = c->fc->streams[c->fc->nb_streams-1];
1999 avio_rb32(pb); // version + flags
2001 entries = avio_rb32(pb);
2002 if (entries >= UINT_MAX / sizeof(*sc->stps_data))
2003 return AVERROR_INVALIDDATA;
2004 sc->stps_data = av_malloc(entries * sizeof(*sc->stps_data));
2006 return AVERROR(ENOMEM);
2008 for (i = 0; i < entries && !pb->eof_reached; i++) {
2009 sc->stps_data[i] = avio_rb32(pb);
2014 if (pb->eof_reached)
2020 static int mov_read_stss(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2023 MOVStreamContext *sc;
2024 unsigned int i, entries;
2026 if (c->fc->nb_streams < 1)
2028 st = c->fc->streams[c->fc->nb_streams-1];
2031 avio_r8(pb); /* version */
2032 avio_rb24(pb); /* flags */
2034 entries = avio_rb32(pb);
2036 av_log(c->fc, AV_LOG_TRACE, "keyframe_count = %u\n", entries);
2040 sc->keyframe_absent = 1;
2043 if (entries >= UINT_MAX / sizeof(int))
2044 return AVERROR_INVALIDDATA;
2045 av_freep(&sc->keyframes);
2046 sc->keyframes = av_malloc(entries * sizeof(int));
2048 return AVERROR(ENOMEM);
2050 for (i = 0; i < entries && !pb->eof_reached; i++) {
2051 sc->keyframes[i] = avio_rb32(pb);
2054 sc->keyframe_count = i;
2056 if (pb->eof_reached)
2062 static int mov_read_stsz(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2065 MOVStreamContext *sc;
2066 unsigned int i, entries, sample_size, field_size, num_bytes;
2067 BitstreamContext bc;
2071 if (c->fc->nb_streams < 1)
2073 st = c->fc->streams[c->fc->nb_streams-1];
2076 avio_r8(pb); /* version */
2077 avio_rb24(pb); /* flags */
2079 if (atom.type == MKTAG('s','t','s','z')) {
2080 sample_size = avio_rb32(pb);
2081 if (!sc->sample_size) /* do not overwrite value computed in stsd */
2082 sc->sample_size = sample_size;
2086 avio_rb24(pb); /* reserved */
2087 field_size = avio_r8(pb);
2089 entries = avio_rb32(pb);
2091 av_log(c->fc, AV_LOG_TRACE, "sample_size = %u sample_count = %u\n", sc->sample_size, entries);
2093 sc->sample_count = entries;
2097 if (field_size != 4 && field_size != 8 && field_size != 16 && field_size != 32) {
2098 av_log(c->fc, AV_LOG_ERROR, "Invalid sample field size %u\n", field_size);
2099 return AVERROR_INVALIDDATA;
2104 if (entries >= UINT_MAX / sizeof(int) || entries >= (UINT_MAX - 4) / field_size)
2105 return AVERROR_INVALIDDATA;
2106 sc->sample_sizes = av_malloc(entries * sizeof(int));
2107 if (!sc->sample_sizes)
2108 return AVERROR(ENOMEM);
2110 num_bytes = (entries*field_size+4)>>3;
2112 buf = av_malloc(num_bytes+AV_INPUT_BUFFER_PADDING_SIZE);
2114 av_freep(&sc->sample_sizes);
2115 return AVERROR(ENOMEM);
2118 ret = ffio_read_size(pb, buf, num_bytes);
2120 av_freep(&sc->sample_sizes);
2125 bitstream_init8(&bc, buf, num_bytes);
2127 for (i = 0; i < entries && !pb->eof_reached; i++) {
2128 sc->sample_sizes[i] = bitstream_read(&bc, field_size);
2129 sc->data_size += sc->sample_sizes[i];
2132 sc->sample_count = i;
2136 if (pb->eof_reached)
2142 static int mov_read_stts(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2145 MOVStreamContext *sc;
2146 unsigned int i, entries;
2148 int64_t total_sample_count=0;
2150 if (c->fc->nb_streams < 1)
2152 st = c->fc->streams[c->fc->nb_streams-1];
2155 avio_r8(pb); /* version */
2156 avio_rb24(pb); /* flags */
2157 entries = avio_rb32(pb);
2159 av_log(c->fc, AV_LOG_TRACE, "track[%u].stts.entries = %u\n",
2160 c->fc->nb_streams-1, entries);
2164 if (entries >= UINT_MAX / sizeof(*sc->stts_data))
2165 return AVERROR(EINVAL);
2167 av_free(sc->stts_data);
2168 sc->stts_data = av_malloc(entries * sizeof(*sc->stts_data));
2170 return AVERROR(ENOMEM);
2172 for (i = 0; i < entries && !pb->eof_reached; i++) {
2173 int sample_duration;
2176 sample_count=avio_rb32(pb);
2177 sample_duration = avio_rb32(pb);
2178 if (sample_count < 0) {
2179 av_log(c->fc, AV_LOG_ERROR, "Invalid sample_count=%d\n", sample_count);
2180 return AVERROR_INVALIDDATA;
2182 sc->stts_data[i].count= sample_count;
2183 sc->stts_data[i].duration= sample_duration;
2185 av_log(c->fc, AV_LOG_TRACE, "sample_count=%d, sample_duration=%d\n",
2186 sample_count, sample_duration);
2188 duration+=(int64_t)sample_duration*sample_count;
2189 total_sample_count+=sample_count;
2194 if (pb->eof_reached)
2197 st->nb_frames= total_sample_count;
2199 st->duration= duration;
2200 sc->track_end = duration;
2204 static int mov_read_ctts(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2207 MOVStreamContext *sc;
2208 unsigned int i, entries;
2210 if (c->fc->nb_streams < 1)
2212 st = c->fc->streams[c->fc->nb_streams-1];
2215 avio_r8(pb); /* version */
2216 avio_rb24(pb); /* flags */
2217 entries = avio_rb32(pb);
2219 av_log(c->fc, AV_LOG_TRACE, "track[%u].ctts.entries = %u\n", c->fc->nb_streams - 1, entries);
2221 av_freep(&sc->ctts_data);
2225 if (entries >= UINT_MAX / sizeof(*sc->ctts_data))
2226 return AVERROR_INVALIDDATA;
2227 sc->ctts_data = av_realloc(NULL, entries * sizeof(*sc->ctts_data));
2229 return AVERROR(ENOMEM);
2231 for (i = 0; i < entries && !pb->eof_reached; i++) {
2232 int count =avio_rb32(pb);
2233 int duration =avio_rb32(pb);
2235 sc->ctts_data[i].count = count;
2236 sc->ctts_data[i].duration= duration;
2238 sc->dts_shift = FFMAX(sc->dts_shift, -duration);
2243 if (pb->eof_reached)
2246 av_log(c->fc, AV_LOG_TRACE, "dts shift %d\n", sc->dts_shift);
2251 static int mov_read_sbgp(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2254 MOVStreamContext *sc;
2255 unsigned int i, entries;
2257 uint32_t grouping_type;
2259 if (c->fc->nb_streams < 1)
2261 st = c->fc->streams[c->fc->nb_streams-1];
2264 version = avio_r8(pb); /* version */
2265 avio_rb24(pb); /* flags */
2266 grouping_type = avio_rl32(pb);
2267 if (grouping_type != MKTAG( 'r','a','p',' '))
2268 return 0; /* only support 'rap ' grouping */
2270 avio_rb32(pb); /* grouping_type_parameter */
2272 entries = avio_rb32(pb);
2275 if (entries >= UINT_MAX / sizeof(*sc->rap_group))
2276 return AVERROR_INVALIDDATA;
2277 sc->rap_group = av_malloc(entries * sizeof(*sc->rap_group));
2279 return AVERROR(ENOMEM);
2281 for (i = 0; i < entries && !pb->eof_reached; i++) {
2282 sc->rap_group[i].count = avio_rb32(pb); /* sample_count */
2283 sc->rap_group[i].index = avio_rb32(pb); /* group_description_index */
2286 sc->rap_group_count = i;
2288 return pb->eof_reached ? AVERROR_EOF : 0;
2291 static void mov_build_index(MOVContext *mov, AVStream *st)
2293 MOVStreamContext *sc = st->priv_data;
2294 int64_t current_offset;
2295 int64_t current_dts = 0;
2296 unsigned int stts_index = 0;
2297 unsigned int stsc_index = 0;
2298 unsigned int stss_index = 0;
2299 unsigned int stps_index = 0;
2301 uint64_t stream_size = 0;
2303 /* adjust first dts according to edit list */
2304 if (sc->time_offset && mov->time_scale > 0) {
2305 if (sc->time_offset < 0)
2306 sc->time_offset = av_rescale(sc->time_offset, sc->time_scale, mov->time_scale);
2307 current_dts = -sc->time_offset;
2310 /* only use old uncompressed audio chunk demuxing when stts specifies it */
2311 if (!(st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO &&
2312 sc->stts_count == 1 && sc->stts_data[0].duration == 1)) {
2313 unsigned int current_sample = 0;
2314 unsigned int stts_sample = 0;
2315 unsigned int sample_size;
2316 unsigned int distance = 0;
2317 unsigned int rap_group_index = 0;
2318 unsigned int rap_group_sample = 0;
2319 int rap_group_present = sc->rap_group_count && sc->rap_group;
2320 int key_off = (sc->keyframes && sc->keyframes[0] > 0) || (sc->stps_data && sc->stps_data[0] > 0);
2322 current_dts -= sc->dts_shift;
2324 if (!sc->sample_count)
2326 if (sc->sample_count >= UINT_MAX / sizeof(*st->index_entries) - st->nb_index_entries)
2328 if (av_reallocp_array(&st->index_entries,
2329 st->nb_index_entries + sc->sample_count,
2330 sizeof(*st->index_entries)) < 0) {
2331 st->nb_index_entries = 0;
2334 st->index_entries_allocated_size = (st->nb_index_entries + sc->sample_count) * sizeof(*st->index_entries);
2336 for (i = 0; i < sc->chunk_count; i++) {
2337 current_offset = sc->chunk_offsets[i];
2338 while (mov_stsc_index_valid(stsc_index, sc->stsc_count) &&
2339 i + 1 == sc->stsc_data[stsc_index + 1].first)
2341 for (j = 0; j < sc->stsc_data[stsc_index].count; j++) {
2343 if (current_sample >= sc->sample_count) {
2344 av_log(mov->fc, AV_LOG_ERROR, "wrong sample count\n");
2348 if (!sc->keyframe_absent && (!sc->keyframe_count || current_sample+key_off == sc->keyframes[stss_index])) {
2350 if (stss_index + 1 < sc->keyframe_count)
2352 } else if (sc->stps_count && current_sample+key_off == sc->stps_data[stps_index]) {
2354 if (stps_index + 1 < sc->stps_count)
2357 if (rap_group_present && rap_group_index < sc->rap_group_count) {
2358 if (sc->rap_group[rap_group_index].index > 0)
2360 if (++rap_group_sample == sc->rap_group[rap_group_index].count) {
2361 rap_group_sample = 0;
2367 sample_size = sc->sample_size > 0 ? sc->sample_size : sc->sample_sizes[current_sample];
2368 if (sc->pseudo_stream_id == -1 ||
2369 sc->stsc_data[stsc_index].id - 1 == sc->pseudo_stream_id) {
2370 AVIndexEntry *e = &st->index_entries[st->nb_index_entries++];
2371 e->pos = current_offset;
2372 e->timestamp = current_dts;
2373 e->size = sample_size;
2374 e->min_distance = distance;
2375 e->flags = keyframe ? AVINDEX_KEYFRAME : 0;
2376 av_log(mov->fc, AV_LOG_TRACE, "AVIndex stream %d, sample %u, offset %"PRIx64", dts %"PRId64", "
2377 "size %u, distance %u, keyframe %d\n", st->index, current_sample,
2378 current_offset, current_dts, sample_size, distance, keyframe);
2381 current_offset += sample_size;
2382 stream_size += sample_size;
2383 current_dts += sc->stts_data[stts_index].duration;
2387 if (stts_index + 1 < sc->stts_count && stts_sample == sc->stts_data[stts_index].count) {
2393 if (st->duration > 0)
2394 st->codecpar->bit_rate = stream_size*8*sc->time_scale/st->duration;
2396 unsigned chunk_samples, total = 0;
2398 // compute total chunk count
2399 for (i = 0; i < sc->stsc_count; i++) {
2400 unsigned count, chunk_count;
2402 chunk_samples = sc->stsc_data[i].count;
2403 if (i != sc->stsc_count - 1 &&
2404 sc->samples_per_frame && chunk_samples % sc->samples_per_frame) {
2405 av_log(mov->fc, AV_LOG_ERROR, "error unaligned chunk\n");
2409 if (sc->samples_per_frame >= 160) { // gsm
2410 count = chunk_samples / sc->samples_per_frame;
2411 } else if (sc->samples_per_frame > 1) {
2412 unsigned samples = (1024/sc->samples_per_frame)*sc->samples_per_frame;
2413 count = (chunk_samples+samples-1) / samples;
2415 count = (chunk_samples+1023) / 1024;
2418 if (mov_stsc_index_valid(i, sc->stsc_count))
2419 chunk_count = sc->stsc_data[i+1].first - sc->stsc_data[i].first;
2421 chunk_count = sc->chunk_count - (sc->stsc_data[i].first - 1);
2422 total += chunk_count * count;
2425 av_log(mov->fc, AV_LOG_TRACE, "chunk count %u\n", total);
2426 if (total >= UINT_MAX / sizeof(*st->index_entries) - st->nb_index_entries)
2428 if (av_reallocp_array(&st->index_entries,
2429 st->nb_index_entries + total,
2430 sizeof(*st->index_entries)) < 0) {
2431 st->nb_index_entries = 0;
2434 st->index_entries_allocated_size = (st->nb_index_entries + total) * sizeof(*st->index_entries);
2437 for (i = 0; i < sc->chunk_count; i++) {
2438 current_offset = sc->chunk_offsets[i];
2439 if (mov_stsc_index_valid(stsc_index, sc->stsc_count) &&
2440 i + 1 == sc->stsc_data[stsc_index + 1].first)
2442 chunk_samples = sc->stsc_data[stsc_index].count;
2444 while (chunk_samples > 0) {
2446 unsigned size, samples;
2448 if (sc->samples_per_frame > 1 && !sc->bytes_per_frame) {
2449 avpriv_request_sample(mov->fc,
2450 "Zero bytes per frame, but %d samples per frame",
2451 sc->samples_per_frame);
2455 if (sc->samples_per_frame >= 160) { // gsm
2456 samples = sc->samples_per_frame;
2457 size = sc->bytes_per_frame;
2459 if (sc->samples_per_frame > 1) {
2460 samples = FFMIN((1024 / sc->samples_per_frame)*
2461 sc->samples_per_frame, chunk_samples);
2462 size = (samples / sc->samples_per_frame) * sc->bytes_per_frame;
2464 samples = FFMIN(1024, chunk_samples);
2465 size = samples * sc->sample_size;
2469 if (st->nb_index_entries >= total) {
2470 av_log(mov->fc, AV_LOG_ERROR, "wrong chunk count %u\n", total);
2473 e = &st->index_entries[st->nb_index_entries++];
2474 e->pos = current_offset;
2475 e->timestamp = current_dts;
2477 e->min_distance = 0;
2478 e->flags = AVINDEX_KEYFRAME;
2479 av_log(mov->fc, AV_LOG_TRACE, "AVIndex stream %d, chunk %u, offset %"PRIx64", dts %"PRId64", "
2480 "size %u, duration %u\n", st->index, i, current_offset, current_dts,
2483 current_offset += size;
2484 current_dts += samples;
2485 chunk_samples -= samples;
2491 static int mov_open_dref(AVFormatContext *s, AVIOContext **pb, char *src,
2494 /* try relative path, we do not try the absolute because it can leak information about our
2495 system to an attacker */
2496 if (ref->nlvl_to > 0 && ref->nlvl_from > 0) {
2497 char filename[1024];
2501 /* find a source dir */
2502 src_path = strrchr(src, '/');
2508 /* find a next level down to target */
2509 for (i = 0, l = strlen(ref->path) - 1; l >= 0; l--)
2510 if (ref->path[l] == '/') {
2511 if (i == ref->nlvl_to - 1)
2517 /* compose filename if next level down to target was found */
2518 if (i == ref->nlvl_to - 1 && src_path - src < sizeof(filename)) {
2519 memcpy(filename, src, src_path - src);
2520 filename[src_path - src] = 0;
2522 for (i = 1; i < ref->nlvl_from; i++)
2523 av_strlcat(filename, "../", 1024);
2525 av_strlcat(filename, ref->path + l + 1, 1024);
2527 if (!s->io_open(s, pb, filename, AVIO_FLAG_READ, NULL))
2532 return AVERROR(ENOENT);
2535 static int mov_read_trak(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2538 MOVStreamContext *sc;
2541 st = avformat_new_stream(c->fc, NULL);
2542 if (!st) return AVERROR(ENOMEM);
2543 st->id = c->fc->nb_streams;
2544 sc = av_mallocz(sizeof(MOVStreamContext));
2545 if (!sc) return AVERROR(ENOMEM);
2548 st->codecpar->codec_type = AVMEDIA_TYPE_DATA;
2549 sc->ffindex = st->index;
2551 if ((ret = mov_read_default(c, pb, atom)) < 0)
2555 if (sc->chunk_count && (!sc->stts_count || !sc->stsc_count ||
2556 (!sc->sample_size && !sc->sample_count))) {
2557 av_log(c->fc, AV_LOG_ERROR, "stream %d, missing mandatory atoms, broken header\n",
2562 if (sc->time_scale <= 0) {
2563 av_log(c->fc, AV_LOG_WARNING, "stream %d, timescale not set\n", st->index);
2564 sc->time_scale = c->time_scale;
2565 if (sc->time_scale <= 0)
2569 avpriv_set_pts_info(st, 64, 1, sc->time_scale);
2571 mov_build_index(c, st);
2573 if (sc->dref_id-1 < sc->drefs_count && sc->drefs[sc->dref_id-1].path) {
2574 MOVDref *dref = &sc->drefs[sc->dref_id - 1];
2575 if (c->enable_drefs) {
2576 if (mov_open_dref(c->fc, &sc->pb, c->fc->filename, dref) < 0)
2577 av_log(c->fc, AV_LOG_ERROR,
2578 "stream %d, error opening alias: path='%s', dir='%s', "
2579 "filename='%s', volume='%s', nlvl_from=%"PRId16", nlvl_to=%"PRId16"\n",
2580 st->index, dref->path, dref->dir, dref->filename,
2581 dref->volume, dref->nlvl_from, dref->nlvl_to);
2583 av_log(c->fc, AV_LOG_WARNING,
2584 "Skipped opening external track: "
2585 "stream %d, alias: path='%s', dir='%s', "
2586 "filename='%s', volume='%s', nlvl_from=%"PRId16", nlvl_to=%"PRId16"."
2587 "Set enable_drefs to allow this.\n",
2588 st->index, dref->path, dref->dir, dref->filename,
2589 dref->volume, dref->nlvl_from, dref->nlvl_to);
2594 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
2595 if (!st->sample_aspect_ratio.num &&
2596 (st->codecpar->width != sc->width || st->codecpar->height != sc->height)) {
2597 st->sample_aspect_ratio = av_d2q(((double)st->codecpar->height * sc->width) /
2598 ((double)st->codecpar->width * sc->height), INT_MAX);
2602 // done for ai5q, ai52, ai55, ai1q, ai12 and ai15.
2603 if (!st->codecpar->extradata_size && st->codecpar->codec_id == AV_CODEC_ID_H264 &&
2604 TAG_IS_AVCI(st->codecpar->codec_tag)) {
2605 ret = ff_generate_avci_extradata(st);
2610 switch (st->codecpar->codec_id) {
2611 #if CONFIG_H261_DECODER
2612 case AV_CODEC_ID_H261:
2614 #if CONFIG_H263_DECODER
2615 case AV_CODEC_ID_H263:
2617 #if CONFIG_MPEG4_DECODER
2618 case AV_CODEC_ID_MPEG4:
2620 st->codecpar->width = 0; /* let decoder init width/height */
2621 st->codecpar->height= 0;
2623 case AV_CODEC_ID_MP3:
2624 st->need_parsing = AVSTREAM_PARSE_FULL;
2628 /* Do not need those anymore. */
2629 av_freep(&sc->chunk_offsets);
2630 av_freep(&sc->sample_sizes);
2631 av_freep(&sc->keyframes);
2632 av_freep(&sc->stts_data);
2633 av_freep(&sc->stps_data);
2634 av_freep(&sc->rap_group);
2639 static int mov_read_ilst(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2642 c->itunes_metadata = 1;
2643 ret = mov_read_default(c, pb, atom);
2644 c->itunes_metadata = 0;
2648 static int mov_read_replaygain(MOVContext *c, AVIOContext *pb, int64_t size)
2650 int64_t end = avio_tell(pb) + size;
2651 uint8_t *key = NULL, *val = NULL;
2654 for (i = 0; i < 2; i++) {
2659 if (end - avio_tell(pb) <= 12)
2662 len = avio_rb32(pb);
2663 tag = avio_rl32(pb);
2664 avio_skip(pb, 4); // flags
2666 if (len < 12 || len - 12 > end - avio_tell(pb))
2670 if (tag == MKTAG('n', 'a', 'm', 'e'))
2672 else if (tag == MKTAG('d', 'a', 't', 'a') && len > 4) {
2679 *p = av_malloc(len + 1);
2682 ret = ffio_read_size(pb, *p, len);
2691 av_dict_set(&c->fc->metadata, key, val,
2692 AV_DICT_DONT_STRDUP_KEY | AV_DICT_DONT_STRDUP_VAL);
2696 avio_seek(pb, end, SEEK_SET);
2702 static int mov_read_custom(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2704 int64_t end = avio_tell(pb) + atom.size;
2710 len = avio_rb32(pb);
2711 tag = avio_rl32(pb);
2713 if (len > atom.size)
2716 if (tag == MKTAG('m', 'e', 'a', 'n') && len > 12) {
2717 uint8_t domain[128];
2720 avio_skip(pb, 4); // flags
2723 domain_len = avio_get_str(pb, len, domain, sizeof(domain));
2724 avio_skip(pb, len - domain_len);
2725 if (!strcmp(domain, "org.hydrogenaudio.replaygain"))
2726 return mov_read_replaygain(c, pb, end - avio_tell(pb));
2730 av_log(c->fc, AV_LOG_VERBOSE,
2731 "Unhandled or malformed custom metadata of size %"PRId64"\n", atom.size);
2735 static int mov_read_meta(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2737 while (atom.size > 8) {
2738 uint32_t tag = avio_rl32(pb);
2740 if (tag == MKTAG('h','d','l','r')) {
2741 avio_seek(pb, -8, SEEK_CUR);
2743 return mov_read_default(c, pb, atom);
2749 // return 1 when matrix is identity, 0 otherwise
2750 #define IS_MATRIX_IDENT(matrix) \
2751 ( (matrix)[0][0] == (1 << 16) && \
2752 (matrix)[1][1] == (1 << 16) && \
2753 (matrix)[2][2] == (1 << 30) && \
2754 !(matrix)[0][1] && !(matrix)[0][2] && \
2755 !(matrix)[1][0] && !(matrix)[1][2] && \
2756 !(matrix)[2][0] && !(matrix)[2][1])
2758 static int mov_read_tkhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2763 int64_t disp_transform[2];
2764 int display_matrix[3][3];
2765 int res_display_matrix[3][3] = { { 0 } };
2767 MOVStreamContext *sc;
2771 if (c->fc->nb_streams < 1)
2773 st = c->fc->streams[c->fc->nb_streams-1];
2776 version = avio_r8(pb);
2777 flags = avio_rb24(pb);
2778 st->disposition |= (flags & MOV_TKHD_FLAG_ENABLED) ? AV_DISPOSITION_DEFAULT : 0;
2784 avio_rb32(pb); /* creation time */
2785 avio_rb32(pb); /* modification time */
2787 st->id = (int)avio_rb32(pb); /* track id (NOT 0 !)*/
2788 avio_rb32(pb); /* reserved */
2790 /* highlevel (considering edits) duration in movie timebase */
2791 (version == 1) ? avio_rb64(pb) : avio_rb32(pb);
2792 avio_rb32(pb); /* reserved */
2793 avio_rb32(pb); /* reserved */
2795 avio_rb16(pb); /* layer */
2796 avio_rb16(pb); /* alternate group */
2797 avio_rb16(pb); /* volume */
2798 avio_rb16(pb); /* reserved */
2800 //read in the display matrix (outlined in ISO 14496-12, Section 6.2.2)
2801 // they're kept in fixed point format through all calculations
2802 // save u,v,z to store the whole matrix in the AV_PKT_DATA_DISPLAYMATRIX
2803 // side data, but the scale factor is not needed to calculate aspect ratio
2804 for (i = 0; i < 3; i++) {
2805 display_matrix[i][0] = avio_rb32(pb); // 16.16 fixed point
2806 display_matrix[i][1] = avio_rb32(pb); // 16.16 fixed point
2807 display_matrix[i][2] = avio_rb32(pb); // 2.30 fixed point
2810 width = avio_rb32(pb); // 16.16 fixed point track width
2811 height = avio_rb32(pb); // 16.16 fixed point track height
2812 sc->width = width >> 16;
2813 sc->height = height >> 16;
2815 // apply the moov display matrix (after the tkhd one)
2816 for (i = 0; i < 3; i++) {
2817 const int sh[3] = { 16, 16, 30 };
2818 for (j = 0; j < 3; j++) {
2819 for (e = 0; e < 3; e++) {
2820 res_display_matrix[i][j] +=
2821 ((int64_t) display_matrix[i][e] *
2822 c->movie_display_matrix[e][j]) >> sh[e];
2827 // save the matrix when it is not the default identity
2828 if (!IS_MATRIX_IDENT(res_display_matrix)) {
2829 av_freep(&sc->display_matrix);
2830 sc->display_matrix = av_malloc(sizeof(int32_t) * 9);
2831 if (!sc->display_matrix)
2832 return AVERROR(ENOMEM);
2834 for (i = 0; i < 3; i++)
2835 for (j = 0; j < 3; j++)
2836 sc->display_matrix[i * 3 + j] = res_display_matrix[i][j];
2839 // transform the display width/height according to the matrix
2840 // skip this when the display matrix is the identity one
2841 // to keep the same scale, use [width height 1<<16]
2842 if (width && height && sc->display_matrix) {
2843 for (i = 0; i < 2; i++)
2845 (int64_t) width * sc->display_matrix[0 + i] +
2846 (int64_t) height * sc->display_matrix[3 + i] +
2847 ((int64_t) sc->display_matrix[6 + i] << 16);
2849 //sample aspect ratio is new width/height divided by old width/height
2850 if (disp_transform[0] > 0 && disp_transform[1] > 0)
2851 st->sample_aspect_ratio = av_d2q(
2852 ((double) disp_transform[0] * height) /
2853 ((double) disp_transform[1] * width), INT_MAX);
2858 static int mov_read_tfhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2860 MOVFragment *frag = &c->fragment;
2861 MOVTrackExt *trex = NULL;
2862 int flags, track_id, i;
2864 avio_r8(pb); /* version */
2865 flags = avio_rb24(pb);
2867 track_id = avio_rb32(pb);
2869 return AVERROR_INVALIDDATA;
2870 frag->track_id = track_id;
2871 for (i = 0; i < c->trex_count; i++)
2872 if (c->trex_data[i].track_id == frag->track_id) {
2873 trex = &c->trex_data[i];
2877 av_log(c->fc, AV_LOG_ERROR, "could not find corresponding trex\n");
2878 return AVERROR_INVALIDDATA;
2881 frag->base_data_offset = flags & MOV_TFHD_BASE_DATA_OFFSET ?
2882 avio_rb64(pb) : flags & MOV_TFHD_DEFAULT_BASE_IS_MOOF ?
2883 frag->moof_offset : frag->implicit_offset;
2884 frag->stsd_id = flags & MOV_TFHD_STSD_ID ? avio_rb32(pb) : trex->stsd_id;
2886 frag->duration = flags & MOV_TFHD_DEFAULT_DURATION ?
2887 avio_rb32(pb) : trex->duration;
2888 frag->size = flags & MOV_TFHD_DEFAULT_SIZE ?
2889 avio_rb32(pb) : trex->size;
2890 frag->flags = flags & MOV_TFHD_DEFAULT_FLAGS ?
2891 avio_rb32(pb) : trex->flags;
2892 av_log(c->fc, AV_LOG_TRACE, "frag flags 0x%x\n", frag->flags);
2896 static int mov_read_chap(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2898 c->chapter_track = avio_rb32(pb);
2902 static int mov_read_trex(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2907 if ((uint64_t)c->trex_count+1 >= UINT_MAX / sizeof(*c->trex_data))
2908 return AVERROR_INVALIDDATA;
2909 if ((err = av_reallocp_array(&c->trex_data, c->trex_count + 1,
2910 sizeof(*c->trex_data))) < 0) {
2914 trex = &c->trex_data[c->trex_count++];
2915 avio_r8(pb); /* version */
2916 avio_rb24(pb); /* flags */
2917 trex->track_id = avio_rb32(pb);
2918 trex->stsd_id = avio_rb32(pb);
2919 trex->duration = avio_rb32(pb);
2920 trex->size = avio_rb32(pb);
2921 trex->flags = avio_rb32(pb);
2925 static int mov_read_tfdt(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2927 MOVFragment *frag = &c->fragment;
2928 AVStream *st = NULL;
2929 MOVStreamContext *sc;
2932 for (i = 0; i < c->fc->nb_streams; i++) {
2933 if (c->fc->streams[i]->id == frag->track_id) {
2934 st = c->fc->streams[i];
2939 av_log(c->fc, AV_LOG_ERROR, "could not find corresponding track id %u\n", frag->track_id);
2940 return AVERROR_INVALIDDATA;
2943 if (sc->pseudo_stream_id + 1 != frag->stsd_id)
2945 version = avio_r8(pb);
2946 avio_rb24(pb); /* flags */
2948 sc->track_end = avio_rb64(pb);
2950 sc->track_end = avio_rb32(pb);
2955 static int mov_read_trun(MOVContext *c, AVIOContext *pb, MOVAtom atom)
2957 MOVFragment *frag = &c->fragment;
2958 AVStream *st = NULL;
2959 MOVStreamContext *sc;
2963 int data_offset = 0;
2964 unsigned entries, first_sample_flags = frag->flags;
2965 int flags, distance, i, err;
2967 for (i = 0; i < c->fc->nb_streams; i++) {
2968 if (c->fc->streams[i]->id == frag->track_id) {
2969 st = c->fc->streams[i];
2974 av_log(c->fc, AV_LOG_ERROR, "could not find corresponding track id %u\n", frag->track_id);
2975 return AVERROR_INVALIDDATA;
2978 if (sc->pseudo_stream_id+1 != frag->stsd_id)
2980 avio_r8(pb); /* version */
2981 flags = avio_rb24(pb);
2982 entries = avio_rb32(pb);
2983 av_log(c->fc, AV_LOG_TRACE, "flags 0x%x entries %u\n", flags, entries);
2985 /* Always assume the presence of composition time offsets.
2986 * Without this assumption, for instance, we cannot deal with a track in fragmented movies that meet the following.
2987 * 1) in the initial movie, there are no samples.
2988 * 2) in the first movie fragment, there is only one sample without composition time offset.
2989 * 3) in the subsequent movie fragments, there are samples with composition time offset. */
2990 if (!sc->ctts_count && sc->sample_count)
2992 /* Complement ctts table if moov atom doesn't have ctts atom. */
2993 ctts_data = av_realloc(NULL, sizeof(*sc->ctts_data));
2995 return AVERROR(ENOMEM);
2996 sc->ctts_data = ctts_data;
2997 sc->ctts_data[sc->ctts_count].count = sc->sample_count;
2998 sc->ctts_data[sc->ctts_count].duration = 0;
3001 if ((uint64_t)entries+sc->ctts_count >= UINT_MAX/sizeof(*sc->ctts_data))
3002 return AVERROR_INVALIDDATA;
3003 if ((err = av_reallocp_array(&sc->ctts_data, entries + sc->ctts_count,
3004 sizeof(*sc->ctts_data))) < 0) {
3008 if (flags & MOV_TRUN_DATA_OFFSET) data_offset = avio_rb32(pb);
3009 if (flags & MOV_TRUN_FIRST_SAMPLE_FLAGS) first_sample_flags = avio_rb32(pb);
3010 dts = sc->track_end - sc->time_offset;
3011 offset = frag->base_data_offset + data_offset;
3013 av_log(c->fc, AV_LOG_TRACE, "first sample flags 0x%x\n", first_sample_flags);
3014 for (i = 0; i < entries && !pb->eof_reached; i++) {
3015 unsigned sample_size = frag->size;
3016 int sample_flags = i ? frag->flags : first_sample_flags;
3017 unsigned sample_duration = frag->duration;
3020 if (flags & MOV_TRUN_SAMPLE_DURATION) sample_duration = avio_rb32(pb);
3021 if (flags & MOV_TRUN_SAMPLE_SIZE) sample_size = avio_rb32(pb);
3022 if (flags & MOV_TRUN_SAMPLE_FLAGS) sample_flags = avio_rb32(pb);
3023 sc->ctts_data[sc->ctts_count].count = 1;
3024 sc->ctts_data[sc->ctts_count].duration = (flags & MOV_TRUN_SAMPLE_CTS) ?
3027 if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO)
3031 !(sample_flags & (MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC |
3032 MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES));
3035 av_add_index_entry(st, offset, dts, sample_size, distance,
3036 keyframe ? AVINDEX_KEYFRAME : 0);
3037 av_log(c->fc, AV_LOG_TRACE, "AVIndex stream %d, sample %u, offset %"PRIx64", dts %"PRId64", "
3038 "size %u, distance %d, keyframe %d\n", st->index, sc->sample_count+i,
3039 offset, dts, sample_size, distance, keyframe);
3041 dts += sample_duration;
3042 offset += sample_size;
3043 sc->data_size += sample_size;
3046 if (pb->eof_reached)
3049 frag->implicit_offset = offset;
3050 st->duration = sc->track_end = dts + sc->time_offset;
3054 /* this atom should be null (from specs), but some buggy files put the 'moov' atom inside it... */
3055 /* like the files created with Adobe Premiere 5.0, for samples see */
3056 /* http://graphics.tudelft.nl/~wouter/publications/soundtests/ */
3057 static int mov_read_wide(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3062 return 0; /* continue */
3063 if (avio_rb32(pb) != 0) { /* 0 sized mdat atom... use the 'wide' atom size */
3064 avio_skip(pb, atom.size - 4);
3067 atom.type = avio_rl32(pb);
3069 if (atom.type != MKTAG('m','d','a','t')) {
3070 avio_skip(pb, atom.size);
3073 err = mov_read_mdat(c, pb, atom);
3077 static int mov_read_cmov(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3082 uint8_t *moov_data; /* uncompressed data */
3083 long cmov_len, moov_len;
3086 avio_rb32(pb); /* dcom atom */
3087 if (avio_rl32(pb) != MKTAG('d','c','o','m'))
3088 return AVERROR_INVALIDDATA;
3089 if (avio_rl32(pb) != MKTAG('z','l','i','b')) {
3090 av_log(c->fc, AV_LOG_ERROR, "unknown compression for cmov atom !");
3091 return AVERROR_INVALIDDATA;
3093 avio_rb32(pb); /* cmvd atom */
3094 if (avio_rl32(pb) != MKTAG('c','m','v','d'))
3095 return AVERROR_INVALIDDATA;
3096 moov_len = avio_rb32(pb); /* uncompressed size */
3097 cmov_len = atom.size - 6 * 4;
3099 cmov_data = av_malloc(cmov_len);
3101 return AVERROR(ENOMEM);
3102 moov_data = av_malloc(moov_len);
3105 return AVERROR(ENOMEM);
3107 ret = ffio_read_size(pb, cmov_data, cmov_len);
3109 goto free_and_return;
3111 if (uncompress (moov_data, (uLongf *) &moov_len, (const Bytef *)cmov_data, cmov_len) != Z_OK)
3112 goto free_and_return;
3113 if (ffio_init_context(&ctx, moov_data, moov_len, 0, NULL, NULL, NULL, NULL) != 0)
3114 goto free_and_return;
3115 atom.type = MKTAG('m','o','o','v');
3116 atom.size = moov_len;
3117 ret = mov_read_default(c, &ctx, atom);
3123 av_log(c->fc, AV_LOG_ERROR, "this file requires zlib support compiled in\n");
3124 return AVERROR(ENOSYS);
3128 /* edit list atom */
3129 static int mov_read_elst(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3131 MOVStreamContext *sc;
3132 int i, edit_count, version;
3134 if (c->fc->nb_streams < 1)
3136 sc = c->fc->streams[c->fc->nb_streams-1]->priv_data;
3138 version = avio_r8(pb); /* version */
3139 avio_rb24(pb); /* flags */
3140 edit_count = avio_rb32(pb); /* entries */
3142 if ((uint64_t)edit_count*12+8 > atom.size)
3143 return AVERROR_INVALIDDATA;
3145 for (i=0; i<edit_count; i++){
3149 duration = avio_rb64(pb);
3150 time = avio_rb64(pb);
3152 duration = avio_rb32(pb); /* segment duration */
3153 time = (int32_t)avio_rb32(pb); /* media time */
3155 avio_rb32(pb); /* Media rate */
3156 if (i == 0 && time >= -1) {
3157 sc->time_offset = time != -1 ? time : -duration;
3162 av_log(c->fc, AV_LOG_WARNING, "multiple edit list entries, "
3163 "a/v desync might occur, patch welcome\n");
3165 av_log(c->fc, AV_LOG_TRACE, "track[%u].edit_count = %i\n", c->fc->nb_streams - 1, edit_count);
3169 static int mov_read_st3d(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3172 MOVStreamContext *sc;
3173 enum AVStereo3DType type;
3176 if (c->fc->nb_streams < 1)
3179 st = c->fc->streams[c->fc->nb_streams - 1];
3182 if (atom.size < 5) {
3183 av_log(c->fc, AV_LOG_ERROR, "Empty stereoscopic video box\n");
3184 return AVERROR_INVALIDDATA;
3186 avio_skip(pb, 4); /* version + flags */
3191 type = AV_STEREO3D_2D;
3194 type = AV_STEREO3D_TOPBOTTOM;
3197 type = AV_STEREO3D_SIDEBYSIDE;
3200 av_log(c->fc, AV_LOG_WARNING, "Unknown st3d mode value %d\n", mode);
3204 sc->stereo3d = av_stereo3d_alloc();
3206 return AVERROR(ENOMEM);
3208 sc->stereo3d->type = type;
3212 static int mov_read_sv3d(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3215 MOVStreamContext *sc;
3216 int size, version, layout;
3217 int32_t yaw, pitch, roll;
3218 uint32_t l = 0, t = 0, r = 0, b = 0;
3219 uint32_t tag, padding = 0;
3220 enum AVSphericalProjection projection;
3222 if (c->fc->nb_streams < 1)
3225 st = c->fc->streams[c->fc->nb_streams - 1];
3228 if (atom.size < 8) {
3229 av_log(c->fc, AV_LOG_ERROR, "Empty spherical video box\n");
3230 return AVERROR_INVALIDDATA;
3233 size = avio_rb32(pb);
3234 if (size <= 12 || size > atom.size)
3235 return AVERROR_INVALIDDATA;
3237 tag = avio_rl32(pb);
3238 if (tag != MKTAG('s','v','h','d')) {
3239 av_log(c->fc, AV_LOG_ERROR, "Missing spherical video header\n");
3242 version = avio_r8(pb);
3244 av_log(c->fc, AV_LOG_WARNING, "Unknown spherical version %d\n",
3248 avio_skip(pb, 3); /* flags */
3249 avio_skip(pb, size - 12); /* metadata_source */
3251 size = avio_rb32(pb);
3252 if (size > atom.size)
3253 return AVERROR_INVALIDDATA;
3255 tag = avio_rl32(pb);
3256 if (tag != MKTAG('p','r','o','j')) {
3257 av_log(c->fc, AV_LOG_ERROR, "Missing projection box\n");
3261 size = avio_rb32(pb);
3262 if (size > atom.size)
3263 return AVERROR_INVALIDDATA;
3265 tag = avio_rl32(pb);
3266 if (tag != MKTAG('p','r','h','d')) {
3267 av_log(c->fc, AV_LOG_ERROR, "Missing projection header box\n");
3270 version = avio_r8(pb);
3272 av_log(c->fc, AV_LOG_WARNING, "Unknown spherical version %d\n",
3276 avio_skip(pb, 3); /* flags */
3278 /* 16.16 fixed point */
3279 yaw = avio_rb32(pb);
3280 pitch = avio_rb32(pb);
3281 roll = avio_rb32(pb);
3283 size = avio_rb32(pb);
3284 if (size > atom.size)
3285 return AVERROR_INVALIDDATA;
3287 tag = avio_rl32(pb);
3288 version = avio_r8(pb);
3290 av_log(c->fc, AV_LOG_WARNING, "Unknown spherical version %d\n",
3294 avio_skip(pb, 3); /* flags */
3296 case MKTAG('c','b','m','p'):
3297 layout = avio_rb32(pb);
3299 av_log(c->fc, AV_LOG_WARNING,
3300 "Unsupported cubemap layout %d\n", layout);
3303 projection = AV_SPHERICAL_CUBEMAP;
3304 padding = avio_rb32(pb);
3306 case MKTAG('e','q','u','i'):
3312 if (b >= UINT_MAX - t || r >= UINT_MAX - l) {
3313 av_log(c->fc, AV_LOG_ERROR,
3314 "Invalid bounding rectangle coordinates "
3315 "%"PRIu32",%"PRIu32",%"PRIu32",%"PRIu32"\n", l, t, r, b);
3316 return AVERROR_INVALIDDATA;
3319 if (l || t || r || b)
3320 projection = AV_SPHERICAL_EQUIRECTANGULAR_TILE;
3322 projection = AV_SPHERICAL_EQUIRECTANGULAR;
3325 av_log(c->fc, AV_LOG_ERROR, "Unknown projection type\n");
3329 sc->spherical = av_spherical_alloc(&sc->spherical_size);
3331 return AVERROR(ENOMEM);
3333 sc->spherical->projection = projection;
3335 sc->spherical->yaw = yaw;
3336 sc->spherical->pitch = pitch;
3337 sc->spherical->roll = roll;
3339 sc->spherical->padding = padding;
3341 sc->spherical->bound_left = l;
3342 sc->spherical->bound_top = t;
3343 sc->spherical->bound_right = r;
3344 sc->spherical->bound_bottom = b;
3349 static int mov_parse_uuid_spherical(MOVStreamContext *sc, AVIOContext *pb, size_t len)
3352 uint8_t *buffer = av_malloc(len + 1);
3356 return AVERROR(ENOMEM);
3359 ret = ffio_read_size(pb, buffer, len);
3363 /* Check for mandatory keys and values, try to support XML as best-effort */
3364 if (!sc->spherical &&
3365 av_stristr(buffer, "<GSpherical:StitchingSoftware>") &&
3366 (val = av_stristr(buffer, "<GSpherical:Spherical>")) &&
3367 av_stristr(val, "true") &&
3368 (val = av_stristr(buffer, "<GSpherical:Stitched>")) &&
3369 av_stristr(val, "true") &&
3370 (val = av_stristr(buffer, "<GSpherical:ProjectionType>")) &&
3371 av_stristr(val, "equirectangular")) {
3372 sc->spherical = av_spherical_alloc(&sc->spherical_size);
3376 sc->spherical->projection = AV_SPHERICAL_EQUIRECTANGULAR;
3378 if (av_stristr(buffer, "<GSpherical:StereoMode>") && !sc->stereo3d) {
3379 enum AVStereo3DType mode;
3381 if (av_stristr(buffer, "left-right"))
3382 mode = AV_STEREO3D_SIDEBYSIDE;
3383 else if (av_stristr(buffer, "top-bottom"))
3384 mode = AV_STEREO3D_TOPBOTTOM;
3386 mode = AV_STEREO3D_2D;
3388 sc->stereo3d = av_stereo3d_alloc();
3392 sc->stereo3d->type = mode;
3396 val = av_stristr(buffer, "<GSpherical:InitialViewHeadingDegrees>");
3398 sc->spherical->yaw = strtol(val, NULL, 10) * (1 << 16);
3399 val = av_stristr(buffer, "<GSpherical:InitialViewPitchDegrees>");
3401 sc->spherical->pitch = strtol(val, NULL, 10) * (1 << 16);
3402 val = av_stristr(buffer, "<GSpherical:InitialViewRollDegrees>");
3404 sc->spherical->roll = strtol(val, NULL, 10) * (1 << 16);
3412 static int mov_read_uuid(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3415 MOVStreamContext *sc;
3419 static const uint8_t uuid_spherical[] = {
3420 0xff, 0xcc, 0x82, 0x63, 0xf8, 0x55, 0x4a, 0x93,
3421 0x88, 0x14, 0x58, 0x7a, 0x02, 0x52, 0x1f, 0xdd,
3424 if (atom.size < sizeof(uuid) || atom.size == INT64_MAX)
3425 return AVERROR_INVALIDDATA;
3427 if (c->fc->nb_streams < 1)
3429 st = c->fc->streams[c->fc->nb_streams - 1];
3432 ret = ffio_read_size(pb, uuid, sizeof(uuid));
3436 if (!memcmp(uuid, uuid_spherical, sizeof(uuid)) && !sc->spherical) {
3437 size_t len = atom.size - sizeof(uuid);
3438 ret = mov_parse_uuid_spherical(sc, pb, len);
3442 av_log(c->fc, AV_LOG_WARNING, "Invalid spherical metadata found\n");
3445 av_log(c->fc, AV_LOG_VERBOSE, "Unknown UUID found: 0x");
3446 for (i = 0; i < sizeof(uuid); i++)
3447 av_log(c->fc, AV_LOG_WARNING, "%02x", uuid[i]);
3448 av_log(c->fc, AV_LOG_WARNING, "\n");
3454 static const MOVParseTableEntry mov_default_parse_table[] = {
3455 { MKTAG('a','v','s','s'), mov_read_extradata },
3456 { MKTAG('c','h','p','l'), mov_read_chpl },
3457 { MKTAG('c','o','6','4'), mov_read_stco },
3458 { MKTAG('c','o','l','r'), mov_read_colr },
3459 { MKTAG('c','t','t','s'), mov_read_ctts }, /* composition time to sample */
3460 { MKTAG('d','i','n','f'), mov_read_default },
3461 { MKTAG('d','r','e','f'), mov_read_dref },
3462 { MKTAG('e','d','t','s'), mov_read_default },
3463 { MKTAG('e','l','s','t'), mov_read_elst },
3464 { MKTAG('e','n','d','a'), mov_read_enda },
3465 { MKTAG('f','i','e','l'), mov_read_fiel },
3466 { MKTAG('f','t','y','p'), mov_read_ftyp },
3467 { MKTAG('g','l','b','l'), mov_read_glbl },
3468 { MKTAG('h','d','l','r'), mov_read_hdlr },
3469 { MKTAG('i','l','s','t'), mov_read_ilst },
3470 { MKTAG('j','p','2','h'), mov_read_extradata },
3471 { MKTAG('m','d','a','t'), mov_read_mdat },
3472 { MKTAG('m','d','h','d'), mov_read_mdhd },
3473 { MKTAG('m','d','i','a'), mov_read_default },
3474 { MKTAG('m','e','t','a'), mov_read_meta },
3475 { MKTAG('m','i','n','f'), mov_read_default },
3476 { MKTAG('m','o','o','f'), mov_read_moof },
3477 { MKTAG('m','o','o','v'), mov_read_moov },
3478 { MKTAG('m','v','e','x'), mov_read_default },
3479 { MKTAG('m','v','h','d'), mov_read_mvhd },
3480 { MKTAG('S','M','I',' '), mov_read_smi }, /* Sorenson extension ??? */
3481 { MKTAG('a','l','a','c'), mov_read_extradata }, /* alac specific atom */
3482 { MKTAG('a','v','c','C'), mov_read_glbl },
3483 { MKTAG('p','a','s','p'), mov_read_pasp },
3484 { MKTAG('s','t','b','l'), mov_read_default },
3485 { MKTAG('s','t','c','o'), mov_read_stco },
3486 { MKTAG('s','t','p','s'), mov_read_stps },
3487 { MKTAG('s','t','r','f'), mov_read_strf },
3488 { MKTAG('s','t','s','c'), mov_read_stsc },
3489 { MKTAG('s','t','s','d'), mov_read_stsd }, /* sample description */
3490 { MKTAG('s','t','s','s'), mov_read_stss }, /* sync sample */
3491 { MKTAG('s','t','s','z'), mov_read_stsz }, /* sample size */
3492 { MKTAG('s','t','t','s'), mov_read_stts },
3493 { MKTAG('s','t','z','2'), mov_read_stsz }, /* compact sample size */
3494 { MKTAG('t','k','h','d'), mov_read_tkhd }, /* track header */
3495 { MKTAG('t','f','d','t'), mov_read_tfdt },
3496 { MKTAG('t','f','h','d'), mov_read_tfhd }, /* track fragment header */
3497 { MKTAG('t','r','a','k'), mov_read_trak },
3498 { MKTAG('t','r','a','f'), mov_read_default },
3499 { MKTAG('t','r','e','f'), mov_read_default },
3500 { MKTAG('c','h','a','p'), mov_read_chap },
3501 { MKTAG('t','r','e','x'), mov_read_trex },
3502 { MKTAG('t','r','u','n'), mov_read_trun },
3503 { MKTAG('u','d','t','a'), mov_read_default },
3504 { MKTAG('w','a','v','e'), mov_read_wave },
3505 { MKTAG('e','s','d','s'), mov_read_esds },
3506 { MKTAG('d','a','c','3'), mov_read_dac3 }, /* AC-3 info */
3507 { MKTAG('d','e','c','3'), mov_read_dec3 }, /* EAC-3 info */
3508 { MKTAG('w','i','d','e'), mov_read_wide }, /* place holder */
3509 { MKTAG('w','f','e','x'), mov_read_wfex },
3510 { MKTAG('c','m','o','v'), mov_read_cmov },
3511 { MKTAG('c','h','a','n'), mov_read_chan }, /* channel layout */
3512 { MKTAG('d','v','c','1'), mov_read_dvc1 },
3513 { MKTAG('s','b','g','p'), mov_read_sbgp },
3514 { MKTAG('h','v','c','C'), mov_read_glbl },
3515 { MKTAG('s','t','3','d'), mov_read_st3d }, /* stereoscopic 3D video box */
3516 { MKTAG('s','v','3','d'), mov_read_sv3d }, /* spherical video box */
3517 { MKTAG('u','u','i','d'), mov_read_uuid }, /* universal unique identifier */
3518 { MKTAG('-','-','-','-'), mov_read_custom },
3522 static int mov_read_default(MOVContext *c, AVIOContext *pb, MOVAtom atom)
3524 int64_t total_size = 0;
3529 atom.size = INT64_MAX;
3530 while (total_size + 8 < atom.size && !pb->eof_reached) {
3531 int (*parse)(MOVContext*, AVIOContext*, MOVAtom) = NULL;
3534 if (atom.size >= 8) {
3535 a.size = avio_rb32(pb);
3536 a.type = avio_rl32(pb);
3538 av_log(c->fc, AV_LOG_TRACE, "type: %08"PRIx32" '%.4s' parent:'%.4s' sz: %"PRId64" %"PRId64" %"PRId64"\n",
3539 a.type, (char*)&a.type, (char*)&atom.type, a.size, total_size, atom.size);
3541 if (a.size == 1) { /* 64 bit extended size */
3542 a.size = avio_rb64(pb) - 8;
3546 a.size = atom.size - total_size;
3553 a.size = FFMIN(a.size, atom.size - total_size);
3555 for (i = 0; mov_default_parse_table[i].type; i++)
3556 if (mov_default_parse_table[i].type == a.type) {
3557 parse = mov_default_parse_table[i].parse;
3561 // container is user data
3562 if (!parse && (atom.type == MKTAG('u','d','t','a') ||
3563 atom.type == MKTAG('i','l','s','t')))
3564 parse = mov_read_udta_string;
3566 if (!parse) { /* skip leaf atoms data */
3567 avio_skip(pb, a.size);
3569 int64_t start_pos = avio_tell(pb);
3571 int err = parse(c, pb, a);
3574 if (c->found_moov && c->found_mdat &&
3575 ((!(pb->seekable & AVIO_SEEKABLE_NORMAL) || c->fc->flags & AVFMT_FLAG_IGNIDX) ||
3576 start_pos + a.size == avio_size(pb))) {
3577 if (!(pb->seekable & AVIO_SEEKABLE_NORMAL) || c->fc->flags & AVFMT_FLAG_IGNIDX)
3578 c->next_root_atom = start_pos + a.size;
3581 left = a.size - avio_tell(pb) + start_pos;
3582 if (left > 0) /* skip garbage at atom end */
3583 avio_skip(pb, left);
3584 else if (left < 0) {
3585 av_log(c->fc, AV_LOG_WARNING,
3586 "overread end of atom '%.4s' by %"PRId64" bytes\n",
3587 (char*)&a.type, -left);
3588 avio_seek(pb, left, SEEK_CUR);
3592 total_size += a.size;
3595 if (total_size < atom.size && atom.size < 0x7ffff)
3596 avio_skip(pb, atom.size - total_size);
3601 static int mov_probe(AVProbeData *p)
3603 unsigned int offset;
3607 /* check file header */
3610 /* ignore invalid offset */
3611 if ((offset + 8) > (unsigned int)p->buf_size)
3613 tag = AV_RL32(p->buf + offset + 4);
3615 /* check for obvious tags */
3616 case MKTAG('j','P',' ',' '): /* jpeg 2000 signature */
3617 case MKTAG('m','o','o','v'):
3618 case MKTAG('m','d','a','t'):
3619 case MKTAG('p','n','o','t'): /* detect movs with preview pics like ew.mov and april.mov */
3620 case MKTAG('u','d','t','a'): /* Packet Video PVAuthor adds this and a lot of more junk */
3621 case MKTAG('f','t','y','p'):
3622 return AVPROBE_SCORE_MAX;
3623 /* those are more common words, so rate then a bit less */
3624 case MKTAG('e','d','i','w'): /* xdcam files have reverted first tags */
3625 case MKTAG('w','i','d','e'):
3626 case MKTAG('f','r','e','e'):
3627 case MKTAG('j','u','n','k'):
3628 case MKTAG('p','i','c','t'):
3629 return AVPROBE_SCORE_MAX - 5;
3630 case MKTAG(0x82,0x82,0x7f,0x7d):
3631 case MKTAG('s','k','i','p'):
3632 case MKTAG('u','u','i','d'):
3633 case MKTAG('p','r','f','l'):
3634 offset = AV_RB32(p->buf+offset) + offset;
3635 /* if we only find those cause probedata is too small at least rate them */
3636 score = AVPROBE_SCORE_EXTENSION;
3639 /* unrecognized tag */
3645 // must be done after parsing all trak because there's no order requirement
3646 static void mov_read_chapters(AVFormatContext *s)
3648 MOVContext *mov = s->priv_data;
3649 AVStream *st = NULL;
3650 MOVStreamContext *sc;
3654 for (i = 0; i < s->nb_streams; i++)
3655 if (s->streams[i]->id == mov->chapter_track) {
3660 av_log(s, AV_LOG_ERROR, "Referenced QT chapter track not found\n");
3664 st->discard = AVDISCARD_ALL;
3666 cur_pos = avio_tell(sc->pb);
3668 for (i = 0; i < st->nb_index_entries; i++) {
3669 AVIndexEntry *sample = &st->index_entries[i];
3670 int64_t end = i+1 < st->nb_index_entries ? st->index_entries[i+1].timestamp : st->duration;
3675 if (avio_seek(sc->pb, sample->pos, SEEK_SET) != sample->pos) {
3676 av_log(s, AV_LOG_ERROR, "Chapter %d not found in file\n", i);
3680 // the first two bytes are the length of the title
3681 len = avio_rb16(sc->pb);
3682 if (len > sample->size-2)
3684 title_len = 2*len + 1;
3685 if (!(title = av_mallocz(title_len)))
3688 // The samples could theoretically be in any encoding if there's an encd
3689 // atom following, but in practice are only utf-8 or utf-16, distinguished
3690 // instead by the presence of a BOM
3694 ch = avio_rb16(sc->pb);
3696 avio_get_str16be(sc->pb, len, title, title_len);
3697 else if (ch == 0xfffe)
3698 avio_get_str16le(sc->pb, len, title, title_len);
3701 if (len == 1 || len == 2)
3704 avio_get_str(sc->pb, len - 2, title + 2, title_len - 2);
3708 avpriv_new_chapter(s, i, st->time_base, sample->timestamp, end, title);
3712 avio_seek(sc->pb, cur_pos, SEEK_SET);
3715 static int mov_read_close(AVFormatContext *s)
3717 MOVContext *mov = s->priv_data;
3720 for (i = 0; i < s->nb_streams; i++) {
3721 AVStream *st = s->streams[i];
3722 MOVStreamContext *sc = st->priv_data;
3724 av_freep(&sc->ctts_data);
3725 for (j = 0; j < sc->drefs_count; j++) {
3726 av_freep(&sc->drefs[j].path);
3727 av_freep(&sc->drefs[j].dir);
3729 av_freep(&sc->drefs);
3730 if (sc->pb && sc->pb != s->pb)
3731 ff_format_io_close(s, &sc->pb);
3733 av_freep(&sc->chunk_offsets);
3734 av_freep(&sc->stsc_data);
3735 av_freep(&sc->sample_sizes);
3736 av_freep(&sc->keyframes);
3737 av_freep(&sc->stts_data);
3738 av_freep(&sc->stps_data);
3739 av_freep(&sc->rap_group);
3740 av_freep(&sc->display_matrix);
3742 for (j = 0; j < sc->stsd_count; j++)
3743 av_free(sc->extradata[j]);
3744 av_freep(&sc->extradata);
3745 av_freep(&sc->extradata_size);
3747 av_freep(&sc->stereo3d);
3748 av_freep(&sc->spherical);
3751 if (mov->dv_demux) {
3752 avformat_free_context(mov->dv_fctx);
3753 mov->dv_fctx = NULL;
3756 av_freep(&mov->trex_data);
3761 static int mov_read_header(AVFormatContext *s)
3763 MOVContext *mov = s->priv_data;
3764 AVIOContext *pb = s->pb;
3766 MOVAtom atom = { AV_RL32("root") };
3770 /* .mov and .mp4 aren't streamable anyway (only progressive download if moov is before mdat) */
3771 if (pb->seekable & AVIO_SEEKABLE_NORMAL)
3772 atom.size = avio_size(pb);
3774 atom.size = INT64_MAX;
3776 /* check MOV header */
3777 if ((err = mov_read_default(mov, pb, atom)) < 0) {
3778 av_log(s, AV_LOG_ERROR, "error reading header: %d\n", err);
3782 if (!mov->found_moov) {
3783 av_log(s, AV_LOG_ERROR, "moov atom not found\n");
3785 return AVERROR_INVALIDDATA;
3787 av_log(mov->fc, AV_LOG_TRACE, "on_parse_exit_offset=%"PRId64"\n", avio_tell(pb));
3789 if ((pb->seekable & AVIO_SEEKABLE_NORMAL) && mov->chapter_track > 0)
3790 mov_read_chapters(s);
3792 for (i = 0; i < s->nb_streams; i++) {
3793 AVStream *st = s->streams[i];
3794 MOVStreamContext *sc = st->priv_data;
3796 if (st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE) {
3797 if (st->codecpar->width <= 0 || st->codecpar->height <= 0) {
3798 st->codecpar->width = sc->width;
3799 st->codecpar->height = sc->height;
3801 if (st->codecpar->codec_id == AV_CODEC_ID_DVD_SUBTITLE) {
3802 if ((err = mov_rewrite_dvd_sub_extradata(st)) < 0)
3808 if (mov->trex_data) {
3809 for (i = 0; i < s->nb_streams; i++) {
3810 AVStream *st = s->streams[i];
3811 MOVStreamContext *sc = st->priv_data;
3812 if (st->duration > 0)
3813 st->codecpar->bit_rate = sc->data_size * 8 * sc->time_scale / st->duration;
3817 for (i = 0; i < s->nb_streams; i++) {
3818 AVStream *st = s->streams[i];
3819 MOVStreamContext *sc = st->priv_data;
3821 switch (st->codecpar->codec_type) {
3822 case AVMEDIA_TYPE_AUDIO:
3823 err = ff_replaygain_export(st, s->metadata);
3829 case AVMEDIA_TYPE_VIDEO:
3830 if (sc->display_matrix) {
3831 err = av_stream_add_side_data(st, AV_PKT_DATA_DISPLAYMATRIX,
3832 (uint8_t *)sc->display_matrix,
3833 sizeof(int32_t) * 9);
3837 sc->display_matrix = NULL;
3840 err = av_stream_add_side_data(st, AV_PKT_DATA_STEREO3D,
3841 (uint8_t *)sc->stereo3d,
3842 sizeof(*sc->stereo3d));
3846 sc->stereo3d = NULL;
3848 if (sc->spherical) {
3849 err = av_stream_add_side_data(st, AV_PKT_DATA_SPHERICAL,
3850 (uint8_t *)sc->spherical,
3851 sc->spherical_size);
3855 sc->spherical = NULL;
3864 static AVIndexEntry *mov_find_next_sample(AVFormatContext *s, AVStream **st)
3866 AVIndexEntry *sample = NULL;
3867 int64_t best_dts = INT64_MAX;
3869 for (i = 0; i < s->nb_streams; i++) {
3870 AVStream *avst = s->streams[i];
3871 MOVStreamContext *msc = avst->priv_data;
3872 if (msc->pb && msc->current_sample < avst->nb_index_entries) {
3873 AVIndexEntry *current_sample = &avst->index_entries[msc->current_sample];
3874 int64_t dts = av_rescale(current_sample->timestamp, AV_TIME_BASE, msc->time_scale);
3875 av_log(s, AV_LOG_TRACE, "stream %d, sample %d, dts %"PRId64"\n", i, msc->current_sample, dts);
3876 if (!sample || (!(s->pb->seekable & AVIO_SEEKABLE_NORMAL) && current_sample->pos < sample->pos) ||
3877 ((s->pb->seekable & AVIO_SEEKABLE_NORMAL) &&
3878 ((msc->pb != s->pb && dts < best_dts) || (msc->pb == s->pb &&
3879 ((FFABS(best_dts - dts) <= AV_TIME_BASE && current_sample->pos < sample->pos) ||
3880 (FFABS(best_dts - dts) > AV_TIME_BASE && dts < best_dts)))))) {
3881 sample = current_sample;
3890 static int mov_change_extradata(MOVStreamContext *sc, AVPacket *pkt)
3892 uint8_t *side, *extradata;
3895 /* Save the current index. */
3896 sc->last_stsd_index = sc->stsc_data[sc->stsc_index].id - 1;
3898 /* Notify the decoder that extradata changed. */
3899 extradata_size = sc->extradata_size[sc->last_stsd_index];
3900 extradata = sc->extradata[sc->last_stsd_index];
3901 if (extradata_size > 0 && extradata) {
3902 side = av_packet_new_side_data(pkt,
3903 AV_PKT_DATA_NEW_EXTRADATA,
3906 return AVERROR(ENOMEM);
3907 memcpy(side, extradata, extradata_size);
3913 static int mov_read_packet(AVFormatContext *s, AVPacket *pkt)
3915 MOVContext *mov = s->priv_data;
3916 MOVStreamContext *sc;
3917 AVIndexEntry *sample;
3918 AVStream *st = NULL;
3921 sample = mov_find_next_sample(s, &st);
3923 mov->found_mdat = 0;
3924 if (!mov->next_root_atom)
3926 avio_seek(s->pb, mov->next_root_atom, SEEK_SET);
3927 mov->next_root_atom = 0;
3928 if (mov_read_default(mov, s->pb, (MOVAtom){ AV_RL32("root"), INT64_MAX }) < 0 ||
3931 av_log(s, AV_LOG_TRACE, "read fragments, offset 0x%"PRIx64"\n", avio_tell(s->pb));
3935 /* must be done just before reading, to avoid infinite loop on sample */
3936 sc->current_sample++;
3938 if (st->discard != AVDISCARD_ALL) {
3939 if (avio_seek(sc->pb, sample->pos, SEEK_SET) != sample->pos) {
3940 av_log(mov->fc, AV_LOG_ERROR, "stream %d, offset 0x%"PRIx64": partial file\n",
3941 sc->ffindex, sample->pos);
3942 return AVERROR_INVALIDDATA;
3944 ret = av_get_packet(sc->pb, pkt, sample->size);
3947 if (sc->has_palette) {
3950 pal = av_packet_new_side_data(pkt, AV_PKT_DATA_PALETTE, AVPALETTE_SIZE);
3952 av_log(mov->fc, AV_LOG_ERROR, "Cannot append palette to packet\n");
3954 memcpy(pal, sc->palette, AVPALETTE_SIZE);
3955 sc->has_palette = 0;
3958 #if CONFIG_DV_DEMUXER
3959 if (mov->dv_demux && sc->dv_audio_container) {
3960 avpriv_dv_produce_packet(mov->dv_demux, pkt, pkt->data, pkt->size);
3963 ret = avpriv_dv_get_packet(mov->dv_demux, pkt);
3970 pkt->stream_index = sc->ffindex;
3971 pkt->dts = sample->timestamp;
3972 if (sc->ctts_data && sc->ctts_index < sc->ctts_count) {
3973 pkt->pts = pkt->dts + sc->dts_shift + sc->ctts_data[sc->ctts_index].duration;
3974 /* update ctts context */
3976 if (sc->ctts_index < sc->ctts_count &&
3977 sc->ctts_data[sc->ctts_index].count == sc->ctts_sample) {
3979 sc->ctts_sample = 0;
3982 int64_t next_dts = (sc->current_sample < st->nb_index_entries) ?
3983 st->index_entries[sc->current_sample].timestamp : st->duration;
3984 pkt->duration = next_dts - pkt->dts;
3985 pkt->pts = pkt->dts;
3987 if (st->discard == AVDISCARD_ALL)
3989 pkt->flags |= sample->flags & AVINDEX_KEYFRAME ? AV_PKT_FLAG_KEY : 0;
3990 pkt->pos = sample->pos;
3991 av_log(s, AV_LOG_TRACE, "stream %d, pts %"PRId64", dts %"PRId64", pos 0x%"PRIx64", duration %"PRId64"\n",
3992 pkt->stream_index, pkt->pts, pkt->dts, pkt->pos, pkt->duration);
3994 /* Multiple stsd handling. */
3995 if (sc->stsc_data) {
3996 /* Keep track of the stsc index for the given sample, then check
3997 * if the stsd index is different from the last used one. */
3999 if (mov_stsc_index_valid(sc->stsc_index, sc->stsc_count) &&
4000 mov_get_stsc_samples(sc, sc->stsc_index) == sc->stsc_sample) {
4002 sc->stsc_sample = 0;
4003 /* Do not check indexes after a switch. */
4004 } else if (sc->stsc_data[sc->stsc_index].id - 1 != sc->last_stsd_index) {
4005 ret = mov_change_extradata(sc, pkt);
4014 static int mov_seek_stream(AVFormatContext *s, AVStream *st, int64_t timestamp, int flags)
4016 MOVStreamContext *sc = st->priv_data;
4017 int sample, time_sample;
4020 sample = av_index_search_timestamp(st, timestamp, flags);
4021 av_log(s, AV_LOG_TRACE, "stream %d, timestamp %"PRId64", sample %d\n", st->index, timestamp, sample);
4022 if (sample < 0 && st->nb_index_entries && timestamp < st->index_entries[0].timestamp)
4024 if (sample < 0) /* not sure what to do */
4025 return AVERROR_INVALIDDATA;
4026 sc->current_sample = sample;
4027 av_log(s, AV_LOG_TRACE, "stream %d, found sample %d\n", st->index, sc->current_sample);
4028 /* adjust ctts index */
4029 if (sc->ctts_data) {
4031 for (i = 0; i < sc->ctts_count; i++) {
4032 int next = time_sample + sc->ctts_data[i].count;
4033 if (next > sc->current_sample) {
4035 sc->ctts_sample = sc->current_sample - time_sample;
4042 /* adjust stsd index */
4044 for (i = 0; i < sc->stsc_count; i++) {
4045 int next = time_sample + mov_get_stsc_samples(sc, i);
4046 if (next > sc->current_sample) {
4048 sc->stsc_sample = sc->current_sample - time_sample;
4057 static int mov_read_seek(AVFormatContext *s, int stream_index, int64_t sample_time, int flags)
4059 MOVContext *mc = s->priv_data;
4064 if (stream_index >= s->nb_streams)
4065 return AVERROR_INVALIDDATA;
4066 if (sample_time < 0)
4069 st = s->streams[stream_index];
4070 sample = mov_seek_stream(s, st, sample_time, flags);
4074 if (mc->seek_individually) {
4075 /* adjust seek timestamp to found sample timestamp */
4076 int64_t seek_timestamp = st->index_entries[sample].timestamp;
4078 for (i = 0; i < s->nb_streams; i++) {
4081 if (stream_index == i)
4084 timestamp = av_rescale_q(seek_timestamp, s->streams[stream_index]->time_base, st->time_base);
4085 mov_seek_stream(s, st, timestamp, flags);
4088 for (i = 0; i < s->nb_streams; i++) {
4089 MOVStreamContext *sc;
4092 sc->current_sample = 0;
4095 MOVStreamContext *sc;
4096 AVIndexEntry *entry = mov_find_next_sample(s, &st);
4098 return AVERROR_INVALIDDATA;
4100 if (sc->ffindex == stream_index && sc->current_sample == sample)
4102 sc->current_sample++;
4108 #define OFFSET(x) offsetof(MOVContext, x)
4109 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM
4110 static const AVOption mov_options[] = {
4111 {"seek_streams_individually",
4112 "Seek each stream individually to the to the closest point",
4113 OFFSET(seek_individually), AV_OPT_TYPE_INT, { .i64 = 1 },
4115 { "export_all", "Export unrecognized metadata entries", OFFSET(export_all),
4116 AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, .flags = FLAGS },
4117 { "export_xmp", "Export full XMP metadata", OFFSET(export_xmp),
4118 AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, .flags = FLAGS },
4119 { "enable_drefs", "Enable external track support.", OFFSET(enable_drefs),
4120 AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, .flags = FLAGS },
4124 static const AVClass mov_class = {
4125 .class_name = "mov,mp4,m4a,3gp,3g2,mj2",
4126 .item_name = av_default_item_name,
4127 .option = mov_options,
4128 .version = LIBAVUTIL_VERSION_INT,
4131 AVInputFormat ff_mov_demuxer = {
4132 .name = "mov,mp4,m4a,3gp,3g2,mj2",
4133 .long_name = NULL_IF_CONFIG_SMALL("QuickTime / MOV"),
4134 .priv_class = &mov_class,
4135 .priv_data_size = sizeof(MOVContext),
4136 .extensions = "mov,mp4,m4a,3gp,3g2,mj2",
4137 .read_probe = mov_probe,
4138 .read_header = mov_read_header,
4139 .read_packet = mov_read_packet,
4140 .read_close = mov_read_close,
4141 .read_seek = mov_read_seek,