3 * Copyright (c) 2001 Fabrice Bellard
4 * Copyright (c) 2009 Baptiste Coudurier <baptiste dot coudurier at gmail dot com>
6 * first version by Francois Revol <revol@free.fr>
7 * seek function by Gael Chardon <gael.dev@4now.net>
9 * This file is part of FFmpeg.
11 * FFmpeg is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU Lesser General Public
13 * License as published by the Free Software Foundation; either
14 * version 2.1 of the License, or (at your option) any later version.
16 * FFmpeg is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 * Lesser General Public License for more details.
21 * You should have received a copy of the GNU Lesser General Public
22 * License along with FFmpeg; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
30 #include "libavutil/attributes.h"
31 #include "libavutil/channel_layout.h"
32 #include "libavutil/display.h"
33 #include "libavutil/intreadwrite.h"
34 #include "libavutil/intfloat.h"
35 #include "libavutil/mathematics.h"
36 #include "libavutil/time_internal.h"
37 #include "libavutil/avstring.h"
38 #include "libavutil/dict.h"
39 #include "libavutil/opt.h"
40 #include "libavutil/timecode.h"
41 #include "libavcodec/ac3tab.h"
44 #include "avio_internal.h"
47 #include "libavcodec/get_bits.h"
50 #include "replaygain.h"
56 #include "qtpalette.h"
62 /* those functions parse an atom */
63 /* links atom IDs to parse functions */
64 typedef struct MOVParseTableEntry
{
66 int (*parse
)(MOVContext
*ctx
, AVIOContext
*pb
, MOVAtom atom
);
69 static int mov_read_default(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
);
70 static int mov_read_mfra(MOVContext
*c
, AVIOContext
*f
);
72 static int mov_metadata_track_or_disc_number(MOVContext
*c
, AVIOContext
*pb
,
73 unsigned len
, const char *key
)
77 short current
, total
= 0;
78 avio_rb16(pb
); // unknown
79 current
= avio_rb16(pb
);
81 total
= avio_rb16(pb
);
83 snprintf(buf
, sizeof(buf
), "%d", current
);
85 snprintf(buf
, sizeof(buf
), "%d/%d", current
, total
);
86 c
->fc
->event_flags
|= AVFMT_EVENT_FLAG_METADATA_UPDATED
;
87 av_dict_set(&c
->fc
->metadata
, key
, buf
, 0);
92 static int mov_metadata_int8_bypass_padding(MOVContext
*c
, AVIOContext
*pb
,
93 unsigned len
, const char *key
)
95 /* bypass padding bytes */
100 c
->fc
->event_flags
|= AVFMT_EVENT_FLAG_METADATA_UPDATED
;
101 av_dict_set_int(&c
->fc
->metadata
, key
, avio_r8(pb
), 0);
106 static int mov_metadata_int8_no_padding(MOVContext
*c
, AVIOContext
*pb
,
107 unsigned len
, const char *key
)
109 c
->fc
->event_flags
|= AVFMT_EVENT_FLAG_METADATA_UPDATED
;
110 av_dict_set_int(&c
->fc
->metadata
, key
, avio_r8(pb
), 0);
115 static int mov_metadata_gnre(MOVContext
*c
, AVIOContext
*pb
,
116 unsigned len
, const char *key
)
120 avio_r8(pb
); // unknown
123 if (genre
< 1 || genre
> ID3v1_GENRE_MAX
)
125 c
->fc
->event_flags
|= AVFMT_EVENT_FLAG_METADATA_UPDATED
;
126 av_dict_set(&c
->fc
->metadata
, key
, ff_id3v1_genre_str
[genre
-1], 0);
131 static const uint32_t mac_to_unicode
[128] = {
132 0x00C4,0x00C5,0x00C7,0x00C9,0x00D1,0x00D6,0x00DC,0x00E1,
133 0x00E0,0x00E2,0x00E4,0x00E3,0x00E5,0x00E7,0x00E9,0x00E8,
134 0x00EA,0x00EB,0x00ED,0x00EC,0x00EE,0x00EF,0x00F1,0x00F3,
135 0x00F2,0x00F4,0x00F6,0x00F5,0x00FA,0x00F9,0x00FB,0x00FC,
136 0x2020,0x00B0,0x00A2,0x00A3,0x00A7,0x2022,0x00B6,0x00DF,
137 0x00AE,0x00A9,0x2122,0x00B4,0x00A8,0x2260,0x00C6,0x00D8,
138 0x221E,0x00B1,0x2264,0x2265,0x00A5,0x00B5,0x2202,0x2211,
139 0x220F,0x03C0,0x222B,0x00AA,0x00BA,0x03A9,0x00E6,0x00F8,
140 0x00BF,0x00A1,0x00AC,0x221A,0x0192,0x2248,0x2206,0x00AB,
141 0x00BB,0x2026,0x00A0,0x00C0,0x00C3,0x00D5,0x0152,0x0153,
142 0x2013,0x2014,0x201C,0x201D,0x2018,0x2019,0x00F7,0x25CA,
143 0x00FF,0x0178,0x2044,0x20AC,0x2039,0x203A,0xFB01,0xFB02,
144 0x2021,0x00B7,0x201A,0x201E,0x2030,0x00C2,0x00CA,0x00C1,
145 0x00CB,0x00C8,0x00CD,0x00CE,0x00CF,0x00CC,0x00D3,0x00D4,
146 0xF8FF,0x00D2,0x00DA,0x00DB,0x00D9,0x0131,0x02C6,0x02DC,
147 0x00AF,0x02D8,0x02D9,0x02DA,0x00B8,0x02DD,0x02DB,0x02C7,
150 static int mov_read_mac_string(MOVContext
*c
, AVIOContext
*pb
, int len
,
151 char *dst
, int dstlen
)
154 char *end
= dst
+dstlen
-1;
157 for (i
= 0; i
< len
; i
++) {
158 uint8_t t
, c
= avio_r8(pb
);
159 if (c
< 0x80 && p
< end
)
162 PUT_UTF8(mac_to_unicode
[c
-0x80], t
, if (p
< end
) *p
++ = t
;);
168 static int mov_read_covr(MOVContext
*c
, AVIOContext
*pb
, int type
, int len
)
172 MOVStreamContext
*sc
;
177 case 0xd: id
= AV_CODEC_ID_MJPEG
; break;
178 case 0xe: id
= AV_CODEC_ID_PNG
; break;
179 case 0x1b: id
= AV_CODEC_ID_BMP
; break;
181 av_log(c
->fc
, AV_LOG_WARNING
, "Unknown cover type: 0x%x.\n", type
);
186 st
= avformat_new_stream(c
->fc
, NULL
);
188 return AVERROR(ENOMEM
);
189 sc
= av_mallocz(sizeof(*sc
));
191 return AVERROR(ENOMEM
);
194 ret
= av_get_packet(pb
, &pkt
, len
);
198 st
->disposition
|= AV_DISPOSITION_ATTACHED_PIC
;
200 st
->attached_pic
= pkt
;
201 st
->attached_pic
.stream_index
= st
->index
;
202 st
->attached_pic
.flags
|= AV_PKT_FLAG_KEY
;
204 st
->codec
->codec_type
= AVMEDIA_TYPE_VIDEO
;
205 st
->codec
->codec_id
= id
;
210 static int mov_metadata_raw(MOVContext
*c
, AVIOContext
*pb
,
211 unsigned len
, const char *key
)
214 // Check for overflow.
216 return AVERROR(EINVAL
);
217 value
= av_malloc(len
+ 1);
219 return AVERROR(ENOMEM
);
220 avio_read(pb
, value
, len
);
222 return av_dict_set(&c
->fc
->metadata
, key
, value
, AV_DICT_DONT_STRDUP_VAL
);
225 static int mov_metadata_loci(MOVContext
*c
, AVIOContext
*pb
, unsigned len
)
227 char language
[4] = { 0 };
229 uint16_t langcode
= 0;
230 double longitude
, latitude
;
231 const char *key
= "location";
233 if (len
< 4 + 2 + 1 + 1 + 4 + 4 + 4)
234 return AVERROR_INVALIDDATA
;
236 avio_skip(pb
, 4); // version+flags
237 langcode
= avio_rb16(pb
);
238 ff_mov_lang_to_iso639(langcode
, language
);
241 len
-= avio_get_str(pb
, len
, buf
, sizeof(buf
)); // place name
243 return AVERROR_INVALIDDATA
;
244 avio_skip(pb
, 1); // role
248 return AVERROR_INVALIDDATA
;
249 longitude
= ((int32_t) avio_rb32(pb
)) / (float) (1 << 16);
250 latitude
= ((int32_t) avio_rb32(pb
)) / (float) (1 << 16);
252 // Try to output in the same format as the ?xyz field
253 snprintf(buf
, sizeof(buf
), "%+08.4f%+09.4f/", latitude
, longitude
);
254 if (*language
&& strcmp(language
, "und")) {
256 snprintf(key2
, sizeof(key2
), "%s-%s", key
, language
);
257 av_dict_set(&c
->fc
->metadata
, key2
, buf
, 0);
259 c
->fc
->event_flags
|= AVFMT_EVENT_FLAG_METADATA_UPDATED
;
260 return av_dict_set(&c
->fc
->metadata
, key
, buf
, 0);
263 static int mov_read_udta_string(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
266 char key2
[32], language
[4] = {0};
268 const char *key
= NULL
;
269 uint16_t langcode
= 0;
270 uint32_t data_type
= 0, str_size
, str_size_alloc
;
271 int (*parse
)(MOVContext
*, AVIOContext
*, unsigned, const char*) = NULL
;
274 case MKTAG(0xa9,'n','a','m'): key
= "title"; break;
275 case MKTAG(0xa9,'a','u','t'):
276 case MKTAG(0xa9,'A','R','T'): key
= "artist"; break;
277 case MKTAG( 'a','A','R','T'): key
= "album_artist"; break;
278 case MKTAG(0xa9,'w','r','t'): key
= "composer"; break;
279 case MKTAG( 'c','p','i','l'): key
= "compilation";
280 parse
= mov_metadata_int8_no_padding
; break;
281 case MKTAG( 'c','p','r','t'):
282 case MKTAG(0xa9,'c','p','y'): key
= "copyright"; break;
283 case MKTAG(0xa9,'g','r','p'): key
= "grouping"; break;
284 case MKTAG(0xa9,'l','y','r'): key
= "lyrics"; break;
285 case MKTAG(0xa9,'c','m','t'):
286 case MKTAG(0xa9,'i','n','f'): key
= "comment"; break;
287 case MKTAG(0xa9,'a','l','b'): key
= "album"; break;
288 case MKTAG(0xa9,'d','a','y'): key
= "date"; break;
289 case MKTAG(0xa9,'g','e','n'): key
= "genre"; break;
290 case MKTAG( 'g','n','r','e'): key
= "genre";
291 parse
= mov_metadata_gnre
; break;
292 case MKTAG(0xa9,'t','o','o'):
293 case MKTAG(0xa9,'s','w','r'): key
= "encoder"; break;
294 case MKTAG(0xa9,'e','n','c'): key
= "encoder"; break;
295 case MKTAG(0xa9,'m','a','k'): key
= "make"; break;
296 case MKTAG(0xa9,'m','o','d'): key
= "model"; break;
297 case MKTAG(0xa9,'x','y','z'): key
= "location"; break;
298 case MKTAG( 'd','e','s','c'): key
= "description";break;
299 case MKTAG( 'l','d','e','s'): key
= "synopsis"; break;
300 case MKTAG( 't','v','s','h'): key
= "show"; break;
301 case MKTAG( 't','v','e','n'): key
= "episode_id";break;
302 case MKTAG( 't','v','n','n'): key
= "network"; break;
303 case MKTAG( 't','r','k','n'): key
= "track";
304 parse
= mov_metadata_track_or_disc_number
; break;
305 case MKTAG( 'd','i','s','k'): key
= "disc";
306 parse
= mov_metadata_track_or_disc_number
; break;
307 case MKTAG( 't','v','e','s'): key
= "episode_sort";
308 parse
= mov_metadata_int8_bypass_padding
; break;
309 case MKTAG( 't','v','s','n'): key
= "season_number";
310 parse
= mov_metadata_int8_bypass_padding
; break;
311 case MKTAG( 's','t','i','k'): key
= "media_type";
312 parse
= mov_metadata_int8_no_padding
; break;
313 case MKTAG( 'h','d','v','d'): key
= "hd_video";
314 parse
= mov_metadata_int8_no_padding
; break;
315 case MKTAG( 'p','g','a','p'): key
= "gapless_playback";
316 parse
= mov_metadata_int8_no_padding
; break;
317 case MKTAG( '@','P','R','M'):
318 return mov_metadata_raw(c
, pb
, atom
.size
, "premiere_version");
319 case MKTAG( '@','P','R','Q'):
320 return mov_metadata_raw(c
, pb
, atom
.size
, "quicktime_version");
321 case MKTAG( 'l','o','c','i'):
322 return mov_metadata_loci(c
, pb
, atom
.size
);
323 case MKTAG( 'X','M','P','_'):
324 return mov_metadata_raw(c
, pb
, atom
.size
, "xmp");
327 if (c
->itunes_metadata
&& atom
.size
> 8) {
328 int data_size
= avio_rb32(pb
);
329 int tag
= avio_rl32(pb
);
330 if (tag
== MKTAG('d','a','t','a')) {
331 data_type
= avio_rb32(pb
); // type
332 avio_rb32(pb
); // unknown
333 str_size
= data_size
- 16;
336 if (atom
.type
== MKTAG('c', 'o', 'v', 'r')) {
337 int ret
= mov_read_covr(c
, pb
, data_type
, str_size
);
339 av_log(c
->fc
, AV_LOG_ERROR
, "Error parsing cover art.\n");
344 } else if (atom
.size
> 4 && key
&& !c
->itunes_metadata
) {
345 str_size
= avio_rb16(pb
); // string length
346 langcode
= avio_rb16(pb
);
347 ff_mov_lang_to_iso639(langcode
, language
);
350 str_size
= atom
.size
;
352 if (c
->export_all
&& !key
) {
353 snprintf(tmp_key
, 5, "%.4s", (char*)&atom
.type
);
359 if (atom
.size
< 0 || str_size
>= INT_MAX
/2)
360 return AVERROR_INVALIDDATA
;
362 str_size_alloc
= str_size
<< 1; // worst-case requirement for output string in case of utf8 coded input
363 str
= av_malloc(str_size_alloc
);
365 return AVERROR(ENOMEM
);
368 parse(c
, pb
, str_size
, key
);
370 if (data_type
== 3 || (data_type
== 0 && (langcode
< 0x400 || langcode
== 0x7fff))) { // MAC Encoded
371 mov_read_mac_string(c
, pb
, str_size
, str
, str_size_alloc
);
373 int ret
= avio_read(pb
, str
, str_size
);
374 if (ret
!= str_size
) {
376 return ret
< 0 ? ret
: AVERROR_INVALIDDATA
;
380 c
->fc
->event_flags
|= AVFMT_EVENT_FLAG_METADATA_UPDATED
;
381 av_dict_set(&c
->fc
->metadata
, key
, str
, 0);
382 if (*language
&& strcmp(language
, "und")) {
383 snprintf(key2
, sizeof(key2
), "%s-%s", key
, language
);
384 av_dict_set(&c
->fc
->metadata
, key2
, str
, 0);
387 av_dlog(c
->fc
, "lang \"%3s\" ", language
);
388 av_dlog(c
->fc
, "tag \"%s\" value \"%s\" atom \"%.4s\" %d %"PRId64
"\n",
389 key
, str
, (char*)&atom
.type
, str_size_alloc
, atom
.size
);
395 static int mov_read_chpl(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
398 int i
, nb_chapters
, str_len
, version
;
401 if ((atom
.size
-= 5) < 0)
404 version
= avio_r8(pb
);
407 avio_rb32(pb
); // ???
408 nb_chapters
= avio_r8(pb
);
410 for (i
= 0; i
< nb_chapters
; i
++) {
414 start
= avio_rb64(pb
);
415 str_len
= avio_r8(pb
);
417 if ((atom
.size
-= 9+str_len
) < 0)
420 avio_read(pb
, str
, str_len
);
422 avpriv_new_chapter(c
->fc
, i
, (AVRational
){1,10000000}, start
, AV_NOPTS_VALUE
, str
);
427 #define MIN_DATA_ENTRY_BOX_SIZE 12
428 static int mov_read_dref(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
431 MOVStreamContext
*sc
;
434 if (c
->fc
->nb_streams
< 1)
436 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
439 avio_rb32(pb
); // version + flags
440 entries
= avio_rb32(pb
);
441 if (entries
> (atom
.size
- 1) / MIN_DATA_ENTRY_BOX_SIZE
+ 1 ||
442 entries
>= UINT_MAX
/ sizeof(*sc
->drefs
))
443 return AVERROR_INVALIDDATA
;
446 sc
->drefs
= av_mallocz(entries
* sizeof(*sc
->drefs
));
448 return AVERROR(ENOMEM
);
449 sc
->drefs_count
= entries
;
451 for (i
= 0; i
< sc
->drefs_count
; i
++) {
452 MOVDref
*dref
= &sc
->drefs
[i
];
453 uint32_t size
= avio_rb32(pb
);
454 int64_t next
= avio_tell(pb
) + size
- 4;
457 return AVERROR_INVALIDDATA
;
459 dref
->type
= avio_rl32(pb
);
460 avio_rb32(pb
); // version + flags
461 av_dlog(c
->fc
, "type %.4s size %d\n", (char*)&dref
->type
, size
);
463 if (dref
->type
== MKTAG('a','l','i','s') && size
> 150) {
464 /* macintosh alias record */
465 uint16_t volume_len
, len
;
470 volume_len
= avio_r8(pb
);
471 volume_len
= FFMIN(volume_len
, 27);
472 avio_read(pb
, dref
->volume
, 27);
473 dref
->volume
[volume_len
] = 0;
474 av_log(c
->fc
, AV_LOG_DEBUG
, "volume %s, len %d\n", dref
->volume
, volume_len
);
479 len
= FFMIN(len
, 63);
480 avio_read(pb
, dref
->filename
, 63);
481 dref
->filename
[len
] = 0;
482 av_log(c
->fc
, AV_LOG_DEBUG
, "filename %s, len %d\n", dref
->filename
, len
);
486 /* read next level up_from_alias/down_to_target */
487 dref
->nlvl_from
= avio_rb16(pb
);
488 dref
->nlvl_to
= avio_rb16(pb
);
489 av_log(c
->fc
, AV_LOG_DEBUG
, "nlvl from %d, nlvl to %d\n",
490 dref
->nlvl_from
, dref
->nlvl_to
);
494 for (type
= 0; type
!= -1 && avio_tell(pb
) < next
; ) {
497 type
= avio_rb16(pb
);
499 av_log(c
->fc
, AV_LOG_DEBUG
, "type %d, len %d\n", type
, len
);
502 if (type
== 2) { // absolute path
504 dref
->path
= av_mallocz(len
+1);
506 return AVERROR(ENOMEM
);
507 avio_read(pb
, dref
->path
, len
);
508 if (len
> volume_len
&& !strncmp(dref
->path
, dref
->volume
, volume_len
)) {
510 memmove(dref
->path
, dref
->path
+volume_len
, len
);
513 for (j
= 0; j
< len
; j
++)
514 if (dref
->path
[j
] == ':')
516 av_log(c
->fc
, AV_LOG_DEBUG
, "path %s\n", dref
->path
);
517 } else if (type
== 0) { // directory name
519 dref
->dir
= av_malloc(len
+1);
521 return AVERROR(ENOMEM
);
522 if (avio_read(pb
, dref
->dir
, len
) != len
)
523 return AVERROR_INVALIDDATA
;
525 for (j
= 0; j
< len
; j
++)
526 if (dref
->dir
[j
] == ':')
528 av_log(c
->fc
, AV_LOG_DEBUG
, "dir %s\n", dref
->dir
);
533 avio_seek(pb
, next
, SEEK_SET
);
538 static int mov_read_hdlr(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
542 uint32_t av_unused ctype
;
546 if (c
->fc
->nb_streams
< 1) // meta before first trak
549 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
551 avio_r8(pb
); /* version */
552 avio_rb24(pb
); /* flags */
555 ctype
= avio_rl32(pb
);
556 type
= avio_rl32(pb
); /* component subtype */
558 av_dlog(c
->fc
, "ctype= %.4s (0x%08x)\n", (char*)&ctype
, ctype
);
559 av_dlog(c
->fc
, "stype= %.4s\n", (char*)&type
);
561 if (type
== MKTAG('v','i','d','e'))
562 st
->codec
->codec_type
= AVMEDIA_TYPE_VIDEO
;
563 else if (type
== MKTAG('s','o','u','n'))
564 st
->codec
->codec_type
= AVMEDIA_TYPE_AUDIO
;
565 else if (type
== MKTAG('m','1','a',' '))
566 st
->codec
->codec_id
= AV_CODEC_ID_MP2
;
567 else if ((type
== MKTAG('s','u','b','p')) || (type
== MKTAG('c','l','c','p')))
568 st
->codec
->codec_type
= AVMEDIA_TYPE_SUBTITLE
;
570 avio_rb32(pb
); /* component manufacture */
571 avio_rb32(pb
); /* component flags */
572 avio_rb32(pb
); /* component flags mask */
574 title_size
= atom
.size
- 24;
575 if (title_size
> 0) {
576 title_str
= av_malloc(title_size
+ 1); /* Add null terminator */
578 return AVERROR(ENOMEM
);
579 avio_read(pb
, title_str
, title_size
);
580 title_str
[title_size
] = 0;
582 av_dict_set(&st
->metadata
, "handler_name", title_str
+
583 (!c
->isom
&& title_str
[0] == title_size
- 1), 0);
584 av_freep(&title_str
);
590 int ff_mov_read_esds(AVFormatContext
*fc
, AVIOContext
*pb
)
595 if (fc
->nb_streams
< 1)
597 st
= fc
->streams
[fc
->nb_streams
-1];
599 avio_rb32(pb
); /* version + flags */
600 ff_mp4_read_descr(fc
, pb
, &tag
);
601 if (tag
== MP4ESDescrTag
) {
602 ff_mp4_parse_es_descr(pb
, NULL
);
604 avio_rb16(pb
); /* ID */
606 ff_mp4_read_descr(fc
, pb
, &tag
);
607 if (tag
== MP4DecConfigDescrTag
)
608 ff_mp4_read_dec_config_descr(fc
, st
, pb
);
612 static int mov_read_esds(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
614 return ff_mov_read_esds(c
->fc
, pb
);
617 static int mov_read_dac3(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
620 int ac3info
, acmod
, lfeon
, bsmod
;
622 if (c
->fc
->nb_streams
< 1)
624 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
626 ac3info
= avio_rb24(pb
);
627 bsmod
= (ac3info
>> 14) & 0x7;
628 acmod
= (ac3info
>> 11) & 0x7;
629 lfeon
= (ac3info
>> 10) & 0x1;
630 st
->codec
->channels
= ((int[]){2,1,2,3,3,4,4,5})[acmod
] + lfeon
;
631 st
->codec
->channel_layout
= avpriv_ac3_channel_layout_tab
[acmod
];
633 st
->codec
->channel_layout
|= AV_CH_LOW_FREQUENCY
;
634 st
->codec
->audio_service_type
= bsmod
;
635 if (st
->codec
->channels
> 1 && bsmod
== 0x7)
636 st
->codec
->audio_service_type
= AV_AUDIO_SERVICE_TYPE_KARAOKE
;
641 static int mov_read_dec3(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
644 int eac3info
, acmod
, lfeon
, bsmod
;
646 if (c
->fc
->nb_streams
< 1)
648 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
650 /* No need to parse fields for additional independent substreams and its
651 * associated dependent substreams since libavcodec's E-AC-3 decoder
652 * does not support them yet. */
653 avio_rb16(pb
); /* data_rate and num_ind_sub */
654 eac3info
= avio_rb24(pb
);
655 bsmod
= (eac3info
>> 12) & 0x1f;
656 acmod
= (eac3info
>> 9) & 0x7;
657 lfeon
= (eac3info
>> 8) & 0x1;
658 st
->codec
->channel_layout
= avpriv_ac3_channel_layout_tab
[acmod
];
660 st
->codec
->channel_layout
|= AV_CH_LOW_FREQUENCY
;
661 st
->codec
->channels
= av_get_channel_layout_nb_channels(st
->codec
->channel_layout
);
662 st
->codec
->audio_service_type
= bsmod
;
663 if (st
->codec
->channels
> 1 && bsmod
== 0x7)
664 st
->codec
->audio_service_type
= AV_AUDIO_SERVICE_TYPE_KARAOKE
;
669 static int mov_read_chan(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
673 if (c
->fc
->nb_streams
< 1)
675 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
680 /* skip version and flags */
683 ff_mov_read_chan(c
->fc
, pb
, st
, atom
.size
- 4);
688 static int mov_read_wfex(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
693 if (c
->fc
->nb_streams
< 1)
695 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
697 if ((ret
= ff_get_wav_header(pb
, st
->codec
, atom
.size
)) < 0)
698 av_log(c
->fc
, AV_LOG_WARNING
, "get_wav_header failed\n");
703 static int mov_read_pasp(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
705 const int num
= avio_rb32(pb
);
706 const int den
= avio_rb32(pb
);
709 if (c
->fc
->nb_streams
< 1)
711 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
713 if ((st
->sample_aspect_ratio
.den
!= 1 || st
->sample_aspect_ratio
.num
) && // default
714 (den
!= st
->sample_aspect_ratio
.den
|| num
!= st
->sample_aspect_ratio
.num
)) {
715 av_log(c
->fc
, AV_LOG_WARNING
,
716 "sample aspect ratio already set to %d:%d, ignoring 'pasp' atom (%d:%d)\n",
717 st
->sample_aspect_ratio
.num
, st
->sample_aspect_ratio
.den
,
719 } else if (den
!= 0) {
720 st
->sample_aspect_ratio
.num
= num
;
721 st
->sample_aspect_ratio
.den
= den
;
726 /* this atom contains actual media data */
727 static int mov_read_mdat(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
729 if (atom
.size
== 0) /* wrong one (MP4) */
732 return 0; /* now go for moov */
735 /* read major brand, minor version and compatible brands and store them as metadata */
736 static int mov_read_ftyp(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
740 char* comp_brands_str
;
741 uint8_t type
[5] = {0};
743 avio_read(pb
, type
, 4);
744 if (strcmp(type
, "qt "))
746 av_log(c
->fc
, AV_LOG_DEBUG
, "ISO: File Type Major Brand: %.4s\n",(char *)&type
);
747 av_dict_set(&c
->fc
->metadata
, "major_brand", type
, 0);
748 minor_ver
= avio_rb32(pb
); /* minor version */
749 av_dict_set_int(&c
->fc
->metadata
, "minor_version", minor_ver
, 0);
751 comp_brand_size
= atom
.size
- 8;
752 if (comp_brand_size
< 0)
753 return AVERROR_INVALIDDATA
;
754 comp_brands_str
= av_malloc(comp_brand_size
+ 1); /* Add null terminator */
755 if (!comp_brands_str
)
756 return AVERROR(ENOMEM
);
757 avio_read(pb
, comp_brands_str
, comp_brand_size
);
758 comp_brands_str
[comp_brand_size
] = 0;
759 av_dict_set(&c
->fc
->metadata
, "compatible_brands", comp_brands_str
, 0);
760 av_freep(&comp_brands_str
);
765 /* this atom should contain all header atoms */
766 static int mov_read_moov(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
771 av_log(c
->fc
, AV_LOG_WARNING
, "Found duplicated MOOV Atom. Skipped it\n");
772 avio_skip(pb
, atom
.size
);
776 if ((ret
= mov_read_default(c
, pb
, atom
)) < 0)
778 /* we parsed the 'moov' atom, we can terminate the parsing as soon as we find the 'mdat' */
779 /* so we don't parse the whole file if over a network */
781 return 0; /* now go for mdat */
784 static int mov_read_moof(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
786 if (!c
->has_looked_for_mfra
&& c
->use_mfra_for
> 0) {
787 c
->has_looked_for_mfra
= 1;
790 av_log(c
->fc
, AV_LOG_VERBOSE
, "stream has moof boxes, will look "
792 if ((ret
= mov_read_mfra(c
, pb
)) < 0) {
793 av_log(c
->fc
, AV_LOG_VERBOSE
, "found a moof box but failed to "
794 "read the mfra (may be a live ismv)\n");
797 av_log(c
->fc
, AV_LOG_VERBOSE
, "found a moof box but stream is not "
798 "seekable, can not look for mfra\n");
801 c
->fragment
.moof_offset
= c
->fragment
.implicit_offset
= avio_tell(pb
) - 8;
802 av_dlog(c
->fc
, "moof offset %"PRIx64
"\n", c
->fragment
.moof_offset
);
803 return mov_read_default(c
, pb
, atom
);
806 static void mov_metadata_creation_time(AVDictionary
**metadata
, int64_t time
)
810 struct tm
*ptm
, tmbuf
;
812 if(time
>= 2082844800)
813 time
-= 2082844800; /* seconds between 1904-01-01 and Epoch */
815 ptm
= gmtime_r(&timet
, &tmbuf
);
817 if (strftime(buffer
, sizeof(buffer
), "%Y-%m-%d %H:%M:%S", ptm
))
818 av_dict_set(metadata
, "creation_time", buffer
, 0);
822 static int mov_read_mdhd(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
825 MOVStreamContext
*sc
;
827 char language
[4] = {0};
829 int64_t creation_time
;
831 if (c
->fc
->nb_streams
< 1)
833 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
836 if (sc
->time_scale
) {
837 av_log(c
->fc
, AV_LOG_ERROR
, "Multiple mdhd?\n");
838 return AVERROR_INVALIDDATA
;
841 version
= avio_r8(pb
);
843 avpriv_request_sample(c
->fc
, "Version %d", version
);
844 return AVERROR_PATCHWELCOME
;
846 avio_rb24(pb
); /* flags */
848 creation_time
= avio_rb64(pb
);
851 creation_time
= avio_rb32(pb
);
852 avio_rb32(pb
); /* modification time */
854 mov_metadata_creation_time(&st
->metadata
, creation_time
);
856 sc
->time_scale
= avio_rb32(pb
);
857 st
->duration
= (version
== 1) ? avio_rb64(pb
) : avio_rb32(pb
); /* duration */
859 lang
= avio_rb16(pb
); /* language */
860 if (ff_mov_lang_to_iso639(lang
, language
))
861 av_dict_set(&st
->metadata
, "language", language
, 0);
862 avio_rb16(pb
); /* quality */
867 static int mov_read_mvhd(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
869 int64_t creation_time
;
870 int version
= avio_r8(pb
); /* version */
871 avio_rb24(pb
); /* flags */
874 creation_time
= avio_rb64(pb
);
877 creation_time
= avio_rb32(pb
);
878 avio_rb32(pb
); /* modification time */
880 mov_metadata_creation_time(&c
->fc
->metadata
, creation_time
);
881 c
->time_scale
= avio_rb32(pb
); /* time scale */
883 av_dlog(c
->fc
, "time scale = %i\n", c
->time_scale
);
885 c
->duration
= (version
== 1) ? avio_rb64(pb
) : avio_rb32(pb
); /* duration */
886 // set the AVCodecContext duration because the duration of individual tracks
888 if (c
->time_scale
> 0 && !c
->trex_data
)
889 c
->fc
->duration
= av_rescale(c
->duration
, AV_TIME_BASE
, c
->time_scale
);
890 avio_rb32(pb
); /* preferred scale */
892 avio_rb16(pb
); /* preferred volume */
894 avio_skip(pb
, 10); /* reserved */
896 avio_skip(pb
, 36); /* display matrix */
898 avio_rb32(pb
); /* preview time */
899 avio_rb32(pb
); /* preview duration */
900 avio_rb32(pb
); /* poster time */
901 avio_rb32(pb
); /* selection time */
902 avio_rb32(pb
); /* selection duration */
903 avio_rb32(pb
); /* current time */
904 avio_rb32(pb
); /* next track ID */
908 static int mov_read_enda(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
913 if (c
->fc
->nb_streams
< 1)
915 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
917 little_endian
= avio_rb16(pb
) & 0xFF;
918 av_dlog(c
->fc
, "enda %d\n", little_endian
);
919 if (little_endian
== 1) {
920 switch (st
->codec
->codec_id
) {
921 case AV_CODEC_ID_PCM_S24BE
:
922 st
->codec
->codec_id
= AV_CODEC_ID_PCM_S24LE
;
924 case AV_CODEC_ID_PCM_S32BE
:
925 st
->codec
->codec_id
= AV_CODEC_ID_PCM_S32LE
;
927 case AV_CODEC_ID_PCM_F32BE
:
928 st
->codec
->codec_id
= AV_CODEC_ID_PCM_F32LE
;
930 case AV_CODEC_ID_PCM_F64BE
:
931 st
->codec
->codec_id
= AV_CODEC_ID_PCM_F64LE
;
940 static int mov_read_colr(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
943 char color_parameter_type
[5] = { 0 };
944 int color_primaries
, color_trc
, color_matrix
;
946 if (c
->fc
->nb_streams
< 1)
948 st
= c
->fc
->streams
[c
->fc
->nb_streams
- 1];
950 avio_read(pb
, color_parameter_type
, 4);
951 if (strncmp(color_parameter_type
, "nclx", 4) &&
952 strncmp(color_parameter_type
, "nclc", 4)) {
953 av_log(c
->fc
, AV_LOG_WARNING
, "unsupported color_parameter_type %s\n",
954 color_parameter_type
);
958 color_primaries
= avio_rb16(pb
);
959 color_trc
= avio_rb16(pb
);
960 color_matrix
= avio_rb16(pb
);
962 av_dlog(c
->fc
, "%s: pri %d trc %d matrix %d",
963 color_parameter_type
, color_primaries
, color_trc
, color_matrix
);
966 uint8_t color_range
= avio_r8(pb
) >> 7;
967 av_dlog(c
->fc
, " full %"PRIu8
"", color_range
);
969 st
->codec
->color_range
= AVCOL_RANGE_JPEG
;
971 st
->codec
->color_range
= AVCOL_RANGE_MPEG
;
972 /* 14496-12 references JPEG XR specs (rather than the more complete
973 * 23001-8) so some adjusting is required */
974 if (color_primaries
>= AVCOL_PRI_FILM
)
975 color_primaries
= AVCOL_PRI_UNSPECIFIED
;
976 if ((color_trc
>= AVCOL_TRC_LINEAR
&&
977 color_trc
<= AVCOL_TRC_LOG_SQRT
) ||
978 color_trc
>= AVCOL_TRC_BT2020_10
)
979 color_trc
= AVCOL_TRC_UNSPECIFIED
;
980 if (color_matrix
>= AVCOL_SPC_BT2020_NCL
)
981 color_matrix
= AVCOL_SPC_UNSPECIFIED
;
982 st
->codec
->color_primaries
= color_primaries
;
983 st
->codec
->color_trc
= color_trc
;
984 st
->codec
->colorspace
= color_matrix
;
986 /* color primaries, Table 4-4 */
987 switch (color_primaries
) {
988 case 1: st
->codec
->color_primaries
= AVCOL_PRI_BT709
; break;
989 case 5: st
->codec
->color_primaries
= AVCOL_PRI_SMPTE170M
; break;
990 case 6: st
->codec
->color_primaries
= AVCOL_PRI_SMPTE240M
; break;
992 /* color transfer, Table 4-5 */
994 case 1: st
->codec
->color_trc
= AVCOL_TRC_BT709
; break;
995 case 7: st
->codec
->color_trc
= AVCOL_TRC_SMPTE240M
; break;
997 /* color matrix, Table 4-6 */
998 switch (color_matrix
) {
999 case 1: st
->codec
->colorspace
= AVCOL_SPC_BT709
; break;
1000 case 6: st
->codec
->colorspace
= AVCOL_SPC_BT470BG
; break;
1001 case 7: st
->codec
->colorspace
= AVCOL_SPC_SMPTE240M
; break;
1004 av_dlog(c
->fc
, "\n");
1009 static int mov_read_fiel(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
1012 unsigned mov_field_order
;
1013 enum AVFieldOrder decoded_field_order
= AV_FIELD_UNKNOWN
;
1015 if (c
->fc
->nb_streams
< 1) // will happen with jp2 files
1017 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
1019 return AVERROR_INVALIDDATA
;
1020 mov_field_order
= avio_rb16(pb
);
1021 if ((mov_field_order
& 0xFF00) == 0x0100)
1022 decoded_field_order
= AV_FIELD_PROGRESSIVE
;
1023 else if ((mov_field_order
& 0xFF00) == 0x0200) {
1024 switch (mov_field_order
& 0xFF) {
1025 case 0x01: decoded_field_order
= AV_FIELD_TT
;
1027 case 0x06: decoded_field_order
= AV_FIELD_BB
;
1029 case 0x09: decoded_field_order
= AV_FIELD_TB
;
1031 case 0x0E: decoded_field_order
= AV_FIELD_BT
;
1035 if (decoded_field_order
== AV_FIELD_UNKNOWN
&& mov_field_order
) {
1036 av_log(NULL
, AV_LOG_ERROR
, "Unknown MOV field order 0x%04x\n", mov_field_order
);
1038 st
->codec
->field_order
= decoded_field_order
;
1043 /* FIXME modify qdm2/svq3/h264 decoders to take full atom as extradata */
1044 static int mov_read_extradata(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
,
1045 enum AVCodecID codec_id
)
1052 if (c
->fc
->nb_streams
< 1) // will happen with jp2 files
1054 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
1056 if (st
->codec
->codec_id
!= codec_id
)
1057 return 0; /* unexpected codec_id - don't mess with extradata */
1059 size
= (uint64_t)st
->codec
->extradata_size
+ atom
.size
+ 8 + FF_INPUT_BUFFER_PADDING_SIZE
;
1060 if (size
> INT_MAX
|| (uint64_t)atom
.size
> INT_MAX
)
1061 return AVERROR_INVALIDDATA
;
1062 if ((err
= av_reallocp(&st
->codec
->extradata
, size
)) < 0) {
1063 st
->codec
->extradata_size
= 0;
1066 buf
= st
->codec
->extradata
+ st
->codec
->extradata_size
;
1067 st
->codec
->extradata_size
= size
- FF_INPUT_BUFFER_PADDING_SIZE
;
1068 AV_WB32( buf
, atom
.size
+ 8);
1069 AV_WL32( buf
+ 4, atom
.type
);
1070 err
= avio_read(pb
, buf
+ 8, atom
.size
);
1073 } else if (err
< atom
.size
) {
1074 av_log(c
->fc
, AV_LOG_WARNING
, "truncated extradata\n");
1075 st
->codec
->extradata_size
-= atom
.size
- err
;
1077 memset(buf
+ 8 + err
, 0, FF_INPUT_BUFFER_PADDING_SIZE
);
1081 /* wrapper functions for reading ALAC/AVS/MJPEG/MJPEG2000 extradata atoms only for those codecs */
1082 static int mov_read_alac(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
1084 return mov_read_extradata(c
, pb
, atom
, AV_CODEC_ID_ALAC
);
1087 static int mov_read_avss(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
1089 return mov_read_extradata(c
, pb
, atom
, AV_CODEC_ID_AVS
);
1092 static int mov_read_jp2h(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
1094 return mov_read_extradata(c
, pb
, atom
, AV_CODEC_ID_JPEG2000
);
1097 static int mov_read_avid(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
1099 int ret
= mov_read_extradata(c
, pb
, atom
, AV_CODEC_ID_AVUI
);
1101 ret
= mov_read_extradata(c
, pb
, atom
, AV_CODEC_ID_DNXHD
);
1105 static int mov_read_targa_y216(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
1107 int ret
= mov_read_extradata(c
, pb
, atom
, AV_CODEC_ID_TARGA_Y216
);
1109 if (!ret
&& c
->fc
->nb_streams
>= 1) {
1110 AVCodecContext
*avctx
= c
->fc
->streams
[c
->fc
->nb_streams
-1]->codec
;
1111 if (avctx
->extradata_size
>= 40) {
1112 avctx
->height
= AV_RB16(&avctx
->extradata
[36]);
1113 avctx
->width
= AV_RB16(&avctx
->extradata
[38]);
1119 static int mov_read_ares(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
1121 if (c
->fc
->nb_streams
>= 1) {
1122 AVCodecContext
*codec
= c
->fc
->streams
[c
->fc
->nb_streams
-1]->codec
;
1123 if (codec
->codec_tag
== MKTAG('A', 'V', 'i', 'n') &&
1124 codec
->codec_id
== AV_CODEC_ID_H264
&&
1127 /* For AVID AVCI50, force width of 1440 to be able to select the correct SPS and PPS */
1128 if (avio_rb16(pb
) == 0xd4d)
1129 codec
->width
= 1440;
1134 return mov_read_avid(c
, pb
, atom
);
1137 static int mov_read_svq3(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
1139 return mov_read_extradata(c
, pb
, atom
, AV_CODEC_ID_SVQ3
);
1142 static int mov_read_wave(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
1146 if (c
->fc
->nb_streams
< 1)
1148 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
1150 if ((uint64_t)atom
.size
> (1<<30))
1151 return AVERROR_INVALIDDATA
;
1153 if (st
->codec
->codec_id
== AV_CODEC_ID_QDM2
||
1154 st
->codec
->codec_id
== AV_CODEC_ID_QDMC
||
1155 st
->codec
->codec_id
== AV_CODEC_ID_SPEEX
) {
1156 // pass all frma atom to codec, needed at least for QDMC and QDM2
1157 av_freep(&st
->codec
->extradata
);
1158 if (ff_get_extradata(st
->codec
, pb
, atom
.size
) < 0)
1159 return AVERROR(ENOMEM
);
1160 } else if (atom
.size
> 8) { /* to read frma, esds atoms */
1162 if ((ret
= mov_read_default(c
, pb
, atom
)) < 0)
1165 avio_skip(pb
, atom
.size
);
1170 * This function reads atom content and puts data in extradata without tag
1171 * nor size unlike mov_read_extradata.
1173 static int mov_read_glbl(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
1177 if (c
->fc
->nb_streams
< 1)
1179 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
1181 if ((uint64_t)atom
.size
> (1<<30))
1182 return AVERROR_INVALIDDATA
;
1184 if (atom
.size
>= 10) {
1185 // Broken files created by legacy versions of libavformat will
1186 // wrap a whole fiel atom inside of a glbl atom.
1187 unsigned size
= avio_rb32(pb
);
1188 unsigned type
= avio_rl32(pb
);
1189 avio_seek(pb
, -8, SEEK_CUR
);
1190 if (type
== MKTAG('f','i','e','l') && size
== atom
.size
)
1191 return mov_read_default(c
, pb
, atom
);
1193 if (st
->codec
->extradata_size
> 1 && st
->codec
->extradata
) {
1194 av_log(c
, AV_LOG_WARNING
, "ignoring multiple glbl\n");
1197 av_freep(&st
->codec
->extradata
);
1198 if (ff_get_extradata(st
->codec
, pb
, atom
.size
) < 0)
1199 return AVERROR(ENOMEM
);
1204 static int mov_read_dvc1(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
1207 uint8_t profile_level
;
1210 if (c
->fc
->nb_streams
< 1)
1212 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
1214 if (atom
.size
>= (1<<28) || atom
.size
< 7)
1215 return AVERROR_INVALIDDATA
;
1217 profile_level
= avio_r8(pb
);
1218 if ((profile_level
& 0xf0) != 0xc0)
1221 avio_seek(pb
, 6, SEEK_CUR
);
1222 av_freep(&st
->codec
->extradata
);
1223 if ((ret
= ff_get_extradata(st
->codec
, pb
, atom
.size
- 7)) < 0)
1230 * An strf atom is a BITMAPINFOHEADER struct. This struct is 40 bytes itself,
1231 * but can have extradata appended at the end after the 40 bytes belonging
1234 static int mov_read_strf(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
1238 if (c
->fc
->nb_streams
< 1)
1240 if (atom
.size
<= 40)
1242 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
1244 if ((uint64_t)atom
.size
> (1<<30))
1245 return AVERROR_INVALIDDATA
;
1248 av_freep(&st
->codec
->extradata
);
1249 if (ff_get_extradata(st
->codec
, pb
, atom
.size
- 40) < 0)
1250 return AVERROR(ENOMEM
);
1254 static int mov_read_stco(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
1257 MOVStreamContext
*sc
;
1258 unsigned int i
, entries
;
1260 if (c
->fc
->nb_streams
< 1)
1262 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
1265 avio_r8(pb
); /* version */
1266 avio_rb24(pb
); /* flags */
1268 entries
= avio_rb32(pb
);
1273 if (sc
->chunk_offsets
)
1274 av_log(c
->fc
, AV_LOG_WARNING
, "Duplicated STCO atom\n");
1275 av_free(sc
->chunk_offsets
);
1276 sc
->chunk_count
= 0;
1277 sc
->chunk_offsets
= av_malloc_array(entries
, sizeof(*sc
->chunk_offsets
));
1278 if (!sc
->chunk_offsets
)
1279 return AVERROR(ENOMEM
);
1280 sc
->chunk_count
= entries
;
1282 if (atom
.type
== MKTAG('s','t','c','o'))
1283 for (i
= 0; i
< entries
&& !pb
->eof_reached
; i
++)
1284 sc
->chunk_offsets
[i
] = avio_rb32(pb
);
1285 else if (atom
.type
== MKTAG('c','o','6','4'))
1286 for (i
= 0; i
< entries
&& !pb
->eof_reached
; i
++)
1287 sc
->chunk_offsets
[i
] = avio_rb64(pb
);
1289 return AVERROR_INVALIDDATA
;
1291 sc
->chunk_count
= i
;
1293 if (pb
->eof_reached
)
1300 * Compute codec id for 'lpcm' tag.
1301 * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
1303 enum AVCodecID
ff_mov_get_lpcm_codec_id(int bps
, int flags
)
1310 return ff_get_pcm_codec_id(bps
, flags
& 1, flags
& 2, flags
& 4 ? -1 : 0);
1313 static int mov_codec_id(AVStream
*st
, uint32_t format
)
1315 int id
= ff_codec_get_id(ff_codec_movaudio_tags
, format
);
1318 ((format
& 0xFFFF) == 'm' + ('s' << 8) ||
1319 (format
& 0xFFFF) == 'T' + ('S' << 8)))
1320 id
= ff_codec_get_id(ff_codec_wav_tags
, av_bswap32(format
) & 0xFFFF);
1322 if (st
->codec
->codec_type
!= AVMEDIA_TYPE_VIDEO
&& id
> 0) {
1323 st
->codec
->codec_type
= AVMEDIA_TYPE_AUDIO
;
1324 } else if (st
->codec
->codec_type
!= AVMEDIA_TYPE_AUDIO
&&
1325 /* skip old asf mpeg4 tag */
1326 format
&& format
!= MKTAG('m','p','4','s')) {
1327 id
= ff_codec_get_id(ff_codec_movvideo_tags
, format
);
1329 id
= ff_codec_get_id(ff_codec_bmp_tags
, format
);
1331 st
->codec
->codec_type
= AVMEDIA_TYPE_VIDEO
;
1332 else if (st
->codec
->codec_type
== AVMEDIA_TYPE_DATA
||
1333 (st
->codec
->codec_type
== AVMEDIA_TYPE_SUBTITLE
&&
1334 st
->codec
->codec_id
== AV_CODEC_ID_NONE
)) {
1335 id
= ff_codec_get_id(ff_codec_movsubtitle_tags
, format
);
1337 st
->codec
->codec_type
= AVMEDIA_TYPE_SUBTITLE
;
1341 st
->codec
->codec_tag
= format
;
1346 static void mov_parse_stsd_video(MOVContext
*c
, AVIOContext
*pb
,
1347 AVStream
*st
, MOVStreamContext
*sc
)
1349 uint8_t codec_name
[32];
1350 unsigned int color_depth
, len
, j
;
1351 int color_greyscale
;
1354 avio_rb16(pb
); /* version */
1355 avio_rb16(pb
); /* revision level */
1356 avio_rb32(pb
); /* vendor */
1357 avio_rb32(pb
); /* temporal quality */
1358 avio_rb32(pb
); /* spatial quality */
1360 st
->codec
->width
= avio_rb16(pb
); /* width */
1361 st
->codec
->height
= avio_rb16(pb
); /* height */
1363 avio_rb32(pb
); /* horiz resolution */
1364 avio_rb32(pb
); /* vert resolution */
1365 avio_rb32(pb
); /* data size, always 0 */
1366 avio_rb16(pb
); /* frames per samples */
1368 len
= avio_r8(pb
); /* codec name, pascal string */
1371 mov_read_mac_string(c
, pb
, len
, codec_name
, sizeof(codec_name
));
1373 avio_skip(pb
, 31 - len
);
1376 av_dict_set(&st
->metadata
, "encoder", codec_name
, 0);
1378 /* codec_tag YV12 triggers an UV swap in rawdec.c */
1379 if (!memcmp(codec_name
, "Planar Y'CbCr 8-bit 4:2:0", 25)) {
1380 st
->codec
->codec_tag
= MKTAG('I', '4', '2', '0');
1381 st
->codec
->width
&= ~1;
1382 st
->codec
->height
&= ~1;
1384 /* Flash Media Server uses tag H263 with Sorenson Spark */
1385 if (st
->codec
->codec_tag
== MKTAG('H','2','6','3') &&
1386 !memcmp(codec_name
, "Sorenson H263", 13))
1387 st
->codec
->codec_id
= AV_CODEC_ID_FLV1
;
1389 st
->codec
->bits_per_coded_sample
= avio_rb16(pb
); /* depth */
1390 color_table_id
= avio_rb16(pb
); /* colortable id */
1391 av_dlog(c
->fc
, "depth %d, ctab id %d\n",
1392 st
->codec
->bits_per_coded_sample
, color_table_id
);
1393 /* figure out the palette situation */
1394 color_depth
= st
->codec
->bits_per_coded_sample
& 0x1F;
1395 color_greyscale
= st
->codec
->bits_per_coded_sample
& 0x20;
1396 /* Do not create a greyscale palette for cinepak */
1397 if (color_greyscale
&& st
->codec
->codec_id
== AV_CODEC_ID_CINEPAK
)
1400 /* if the depth is 2, 4, or 8 bpp, file is palettized */
1401 if ((color_depth
== 2) || (color_depth
== 4) || (color_depth
== 8)) {
1402 /* for palette traversal */
1403 unsigned int color_start
, color_count
, color_end
;
1404 unsigned char a
, r
, g
, b
;
1406 if (color_greyscale
) {
1407 int color_index
, color_dec
;
1408 /* compute the greyscale palette */
1409 st
->codec
->bits_per_coded_sample
= color_depth
;
1410 color_count
= 1 << color_depth
;
1412 color_dec
= 256 / (color_count
- 1);
1413 for (j
= 0; j
< color_count
; j
++) {
1414 r
= g
= b
= color_index
;
1415 sc
->palette
[j
] = (0xFFU
<< 24) | (r
<< 16) | (g
<< 8) | (b
);
1416 color_index
-= color_dec
;
1417 if (color_index
< 0)
1420 } else if (color_table_id
) {
1421 const uint8_t *color_table
;
1422 /* if flag bit 3 is set, use the default palette */
1423 color_count
= 1 << color_depth
;
1424 if (color_depth
== 2)
1425 color_table
= ff_qt_default_palette_4
;
1426 else if (color_depth
== 4)
1427 color_table
= ff_qt_default_palette_16
;
1429 color_table
= ff_qt_default_palette_256
;
1431 for (j
= 0; j
< color_count
; j
++) {
1432 r
= color_table
[j
* 3 + 0];
1433 g
= color_table
[j
* 3 + 1];
1434 b
= color_table
[j
* 3 + 2];
1435 sc
->palette
[j
] = (0xFFU
<< 24) | (r
<< 16) | (g
<< 8) | (b
);
1438 /* load the palette from the file */
1439 color_start
= avio_rb32(pb
);
1440 color_count
= avio_rb16(pb
);
1441 color_end
= avio_rb16(pb
);
1442 if ((color_start
<= 255) && (color_end
<= 255)) {
1443 for (j
= color_start
; j
<= color_end
; j
++) {
1444 /* each A, R, G, or B component is 16 bits;
1445 * only use the top 8 bits */
1454 sc
->palette
[j
] = (a
<< 24 ) | (r
<< 16) | (g
<< 8) | (b
);
1458 sc
->has_palette
= 1;
1462 static void mov_parse_stsd_audio(MOVContext
*c
, AVIOContext
*pb
,
1463 AVStream
*st
, MOVStreamContext
*sc
)
1465 int bits_per_sample
, flags
;
1466 uint16_t version
= avio_rb16(pb
);
1467 AVDictionaryEntry
*compatible_brands
= av_dict_get(c
->fc
->metadata
, "compatible_brands", NULL
, AV_DICT_MATCH_CASE
);
1469 avio_rb16(pb
); /* revision level */
1470 avio_rb32(pb
); /* vendor */
1472 st
->codec
->channels
= avio_rb16(pb
); /* channel count */
1473 st
->codec
->bits_per_coded_sample
= avio_rb16(pb
); /* sample size */
1474 av_dlog(c
->fc
, "audio channels %d\n", st
->codec
->channels
);
1476 sc
->audio_cid
= avio_rb16(pb
);
1477 avio_rb16(pb
); /* packet size = 0 */
1479 st
->codec
->sample_rate
= ((avio_rb32(pb
) >> 16));
1481 // Read QT version 1 fields. In version 0 these do not exist.
1482 av_dlog(c
->fc
, "version =%d, isom =%d\n", version
, c
->isom
);
1484 (compatible_brands
&& strstr(compatible_brands
->value
, "qt "))) {
1487 sc
->samples_per_frame
= avio_rb32(pb
);
1488 avio_rb32(pb
); /* bytes per packet */
1489 sc
->bytes_per_frame
= avio_rb32(pb
);
1490 avio_rb32(pb
); /* bytes per sample */
1491 } else if (version
== 2) {
1492 avio_rb32(pb
); /* sizeof struct only */
1493 st
->codec
->sample_rate
= av_int2double(avio_rb64(pb
));
1494 st
->codec
->channels
= avio_rb32(pb
);
1495 avio_rb32(pb
); /* always 0x7F000000 */
1496 st
->codec
->bits_per_coded_sample
= avio_rb32(pb
);
1498 flags
= avio_rb32(pb
); /* lpcm format specific flag */
1499 sc
->bytes_per_frame
= avio_rb32(pb
);
1500 sc
->samples_per_frame
= avio_rb32(pb
);
1501 if (st
->codec
->codec_tag
== MKTAG('l','p','c','m'))
1502 st
->codec
->codec_id
=
1503 ff_mov_get_lpcm_codec_id(st
->codec
->bits_per_coded_sample
,
1508 switch (st
->codec
->codec_id
) {
1509 case AV_CODEC_ID_PCM_S8
:
1510 case AV_CODEC_ID_PCM_U8
:
1511 if (st
->codec
->bits_per_coded_sample
== 16)
1512 st
->codec
->codec_id
= AV_CODEC_ID_PCM_S16BE
;
1514 case AV_CODEC_ID_PCM_S16LE
:
1515 case AV_CODEC_ID_PCM_S16BE
:
1516 if (st
->codec
->bits_per_coded_sample
== 8)
1517 st
->codec
->codec_id
= AV_CODEC_ID_PCM_S8
;
1518 else if (st
->codec
->bits_per_coded_sample
== 24)
1519 st
->codec
->codec_id
=
1520 st
->codec
->codec_id
== AV_CODEC_ID_PCM_S16BE
?
1521 AV_CODEC_ID_PCM_S24BE
: AV_CODEC_ID_PCM_S24LE
;
1522 else if (st
->codec
->bits_per_coded_sample
== 32)
1523 st
->codec
->codec_id
=
1524 st
->codec
->codec_id
== AV_CODEC_ID_PCM_S16BE
?
1525 AV_CODEC_ID_PCM_S32BE
: AV_CODEC_ID_PCM_S32LE
;
1527 /* set values for old format before stsd version 1 appeared */
1528 case AV_CODEC_ID_MACE3
:
1529 sc
->samples_per_frame
= 6;
1530 sc
->bytes_per_frame
= 2 * st
->codec
->channels
;
1532 case AV_CODEC_ID_MACE6
:
1533 sc
->samples_per_frame
= 6;
1534 sc
->bytes_per_frame
= 1 * st
->codec
->channels
;
1536 case AV_CODEC_ID_ADPCM_IMA_QT
:
1537 sc
->samples_per_frame
= 64;
1538 sc
->bytes_per_frame
= 34 * st
->codec
->channels
;
1540 case AV_CODEC_ID_GSM
:
1541 sc
->samples_per_frame
= 160;
1542 sc
->bytes_per_frame
= 33;
1548 bits_per_sample
= av_get_bits_per_sample(st
->codec
->codec_id
);
1549 if (bits_per_sample
) {
1550 st
->codec
->bits_per_coded_sample
= bits_per_sample
;
1551 sc
->sample_size
= (bits_per_sample
>> 3) * st
->codec
->channels
;
1555 static void mov_parse_stsd_subtitle(MOVContext
*c
, AVIOContext
*pb
,
1556 AVStream
*st
, MOVStreamContext
*sc
,
1559 // ttxt stsd contains display flags, justification, background
1560 // color, fonts, and default styles, so fake an atom to read it
1561 MOVAtom fake_atom
= { .size
= size
};
1562 // mp4s contains a regular esds atom
1563 if (st
->codec
->codec_tag
!= AV_RL32("mp4s"))
1564 mov_read_glbl(c
, pb
, fake_atom
);
1565 st
->codec
->width
= sc
->width
;
1566 st
->codec
->height
= sc
->height
;
1569 static uint32_t yuv_to_rgba(uint32_t ycbcr
)
1574 y
= (ycbcr
>> 16) & 0xFF;
1575 cr
= (ycbcr
>> 8) & 0xFF;
1578 b
= av_clip_uint8(1.164 * (y
- 16) + 2.018 * (cb
- 128));
1579 g
= av_clip_uint8(1.164 * (y
- 16) - 0.813 * (cr
- 128) - 0.391 * (cb
- 128));
1580 r
= av_clip_uint8(1.164 * (y
- 16) + 1.596 * (cr
- 128));
1582 return (r
<< 16) | (g
<< 8) | b
;
1585 static int mov_rewrite_dvd_sub_extradata(AVStream
*st
)
1587 char buf
[256] = {0};
1588 uint8_t *src
= st
->codec
->extradata
;
1591 if (st
->codec
->extradata_size
!= 64)
1594 if (st
->codec
->width
> 0 && st
->codec
->height
> 0)
1595 snprintf(buf
, sizeof(buf
), "size: %dx%d\n",
1596 st
->codec
->width
, st
->codec
->height
);
1597 av_strlcat(buf
, "palette: ", sizeof(buf
));
1599 for (i
= 0; i
< 16; i
++) {
1600 uint32_t yuv
= AV_RB32(src
+ i
* 4);
1601 uint32_t rgba
= yuv_to_rgba(yuv
);
1603 av_strlcatf(buf
, sizeof(buf
), "%06"PRIx32
"%s", rgba
, i
!= 15 ? ", " : "");
1606 if (av_strlcat(buf
, "\n", sizeof(buf
)) >= sizeof(buf
))
1609 av_freep(&st
->codec
->extradata
);
1610 st
->codec
->extradata_size
= 0;
1611 st
->codec
->extradata
= av_mallocz(strlen(buf
) + FF_INPUT_BUFFER_PADDING_SIZE
);
1612 if (!st
->codec
->extradata
)
1613 return AVERROR(ENOMEM
);
1614 st
->codec
->extradata_size
= strlen(buf
);
1615 memcpy(st
->codec
->extradata
, buf
, st
->codec
->extradata_size
);
1620 static int mov_parse_stsd_data(MOVContext
*c
, AVIOContext
*pb
,
1621 AVStream
*st
, MOVStreamContext
*sc
,
1624 if (st
->codec
->codec_tag
== MKTAG('t','m','c','d')) {
1625 if ((int)size
!= size
|| ff_get_extradata(st
->codec
, pb
, size
) < 0)
1626 return AVERROR(ENOMEM
);
1628 MOVStreamContext
*tmcd_ctx
= st
->priv_data
;
1630 val
= AV_RB32(st
->codec
->extradata
+ 4);
1631 tmcd_ctx
->tmcd_flags
= val
;
1633 st
->codec
->flags2
|= CODEC_FLAG2_DROP_FRAME_TIMECODE
;
1634 st
->codec
->time_base
.den
= st
->codec
->extradata
[16]; /* number of frame */
1635 st
->codec
->time_base
.num
= 1;
1637 uint32_t len
= AV_RB32(st
->codec
->extradata
+ 18); /* name atom length */
1638 uint32_t format
= AV_RB32(st
->codec
->extradata
+ 22);
1639 if (format
== AV_RB32("name") && (int64_t)size
>= (int64_t)len
+ 18) {
1640 uint16_t str_size
= AV_RB16(st
->codec
->extradata
+ 26); /* string length */
1641 if (str_size
> 0 && size
>= (int)str_size
+ 26) {
1642 char *reel_name
= av_malloc(str_size
+ 1);
1644 return AVERROR(ENOMEM
);
1645 memcpy(reel_name
, st
->codec
->extradata
+ 30, str_size
);
1646 reel_name
[str_size
] = 0; /* Add null terminator */
1647 /* don't add reel_name if emtpy string */
1648 if (*reel_name
== 0) {
1651 av_dict_set(&st
->metadata
, "reel_name", reel_name
, AV_DICT_DONT_STRDUP_VAL
);
1658 /* other codec type, just skip (rtp, mp4s ...) */
1659 avio_skip(pb
, size
);
1664 static int mov_finalize_stsd_codec(MOVContext
*c
, AVIOContext
*pb
,
1665 AVStream
*st
, MOVStreamContext
*sc
)
1667 if (st
->codec
->codec_type
== AVMEDIA_TYPE_AUDIO
&&
1668 !st
->codec
->sample_rate
&& sc
->time_scale
> 1)
1669 st
->codec
->sample_rate
= sc
->time_scale
;
1671 /* special codec parameters handling */
1672 switch (st
->codec
->codec_id
) {
1673 #if CONFIG_DV_DEMUXER
1674 case AV_CODEC_ID_DVAUDIO
:
1675 c
->dv_fctx
= avformat_alloc_context();
1676 c
->dv_demux
= avpriv_dv_init_demux(c
->dv_fctx
);
1678 av_log(c
->fc
, AV_LOG_ERROR
, "dv demux context init error\n");
1679 return AVERROR(ENOMEM
);
1681 sc
->dv_audio_container
= 1;
1682 st
->codec
->codec_id
= AV_CODEC_ID_PCM_S16LE
;
1685 /* no ifdef since parameters are always those */
1686 case AV_CODEC_ID_QCELP
:
1687 st
->codec
->channels
= 1;
1688 // force sample rate for qcelp when not stored in mov
1689 if (st
->codec
->codec_tag
!= MKTAG('Q','c','l','p'))
1690 st
->codec
->sample_rate
= 8000;
1691 // FIXME: Why is the following needed for some files?
1692 sc
->samples_per_frame
= 160;
1693 if (!sc
->bytes_per_frame
)
1694 sc
->bytes_per_frame
= 35;
1696 case AV_CODEC_ID_AMR_NB
:
1697 st
->codec
->channels
= 1;
1698 /* force sample rate for amr, stsd in 3gp does not store sample rate */
1699 st
->codec
->sample_rate
= 8000;
1701 case AV_CODEC_ID_AMR_WB
:
1702 st
->codec
->channels
= 1;
1703 st
->codec
->sample_rate
= 16000;
1705 case AV_CODEC_ID_MP2
:
1706 case AV_CODEC_ID_MP3
:
1707 /* force type after stsd for m1a hdlr */
1708 st
->codec
->codec_type
= AVMEDIA_TYPE_AUDIO
;
1709 st
->need_parsing
= AVSTREAM_PARSE_FULL
;
1711 case AV_CODEC_ID_GSM
:
1712 case AV_CODEC_ID_ADPCM_MS
:
1713 case AV_CODEC_ID_ADPCM_IMA_WAV
:
1714 case AV_CODEC_ID_ILBC
:
1715 case AV_CODEC_ID_MACE3
:
1716 case AV_CODEC_ID_MACE6
:
1717 case AV_CODEC_ID_QDM2
:
1718 st
->codec
->block_align
= sc
->bytes_per_frame
;
1720 case AV_CODEC_ID_ALAC
:
1721 if (st
->codec
->extradata_size
== 36) {
1722 st
->codec
->channels
= AV_RB8 (st
->codec
->extradata
+ 21);
1723 st
->codec
->sample_rate
= AV_RB32(st
->codec
->extradata
+ 32);
1726 case AV_CODEC_ID_AC3
:
1727 case AV_CODEC_ID_EAC3
:
1728 case AV_CODEC_ID_MPEG1VIDEO
:
1729 case AV_CODEC_ID_VC1
:
1730 st
->need_parsing
= AVSTREAM_PARSE_FULL
;
1738 static int mov_skip_multiple_stsd(MOVContext
*c
, AVIOContext
*pb
,
1739 int codec_tag
, int format
,
1742 int video_codec_id
= ff_codec_get_id(ff_codec_movvideo_tags
, format
);
1745 (codec_tag
!= format
&&
1746 (c
->fc
->video_codec_id
? video_codec_id
!= c
->fc
->video_codec_id
1747 : codec_tag
!= MKTAG('j','p','e','g')))) {
1748 /* Multiple fourcc, we skip JPEG. This is not correct, we should
1749 * export it as a separate AVStream but this needs a few changes
1750 * in the MOV demuxer, patch welcome. */
1752 av_log(c
->fc
, AV_LOG_WARNING
, "multiple fourcc not supported\n");
1753 avio_skip(pb
, size
);
1756 if ( codec_tag
== AV_RL32("avc1") ||
1757 codec_tag
== AV_RL32("hvc1") ||
1758 codec_tag
== AV_RL32("hev1")
1760 av_log(c
->fc
, AV_LOG_WARNING
, "Concatenated H.264 or H.265 might not play correctly.\n");
1765 int ff_mov_read_stsd_entries(MOVContext
*c
, AVIOContext
*pb
, int entries
)
1768 MOVStreamContext
*sc
;
1769 int pseudo_stream_id
;
1771 if (c
->fc
->nb_streams
< 1)
1773 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
1776 for (pseudo_stream_id
= 0;
1777 pseudo_stream_id
< entries
&& !pb
->eof_reached
;
1778 pseudo_stream_id
++) {
1779 //Parsing Sample description table
1781 int ret
, dref_id
= 1;
1782 MOVAtom a
= { AV_RL32("stsd") };
1783 int64_t start_pos
= avio_tell(pb
);
1784 int64_t size
= avio_rb32(pb
); /* size */
1785 uint32_t format
= avio_rl32(pb
); /* data format */
1788 avio_rb32(pb
); /* reserved */
1789 avio_rb16(pb
); /* reserved */
1790 dref_id
= avio_rb16(pb
);
1791 }else if (size
<= 7){
1792 av_log(c
->fc
, AV_LOG_ERROR
, "invalid size %"PRId64
" in stsd\n", size
);
1793 return AVERROR_INVALIDDATA
;
1796 if (mov_skip_multiple_stsd(c
, pb
, st
->codec
->codec_tag
, format
,
1797 size
- (avio_tell(pb
) - start_pos
)))
1800 sc
->pseudo_stream_id
= st
->codec
->codec_tag
? -1 : pseudo_stream_id
;
1801 sc
->dref_id
= dref_id
;
1803 id
= mov_codec_id(st
, format
);
1805 av_dlog(c
->fc
, "size=%"PRId64
" 4CC= %c%c%c%c codec_type=%d\n", size
,
1806 (format
>> 0) & 0xff, (format
>> 8) & 0xff, (format
>> 16) & 0xff,
1807 (format
>> 24) & 0xff, st
->codec
->codec_type
);
1809 if (st
->codec
->codec_type
==AVMEDIA_TYPE_VIDEO
) {
1810 st
->codec
->codec_id
= id
;
1811 mov_parse_stsd_video(c
, pb
, st
, sc
);
1812 } else if (st
->codec
->codec_type
==AVMEDIA_TYPE_AUDIO
) {
1813 st
->codec
->codec_id
= id
;
1814 mov_parse_stsd_audio(c
, pb
, st
, sc
);
1815 } else if (st
->codec
->codec_type
==AVMEDIA_TYPE_SUBTITLE
){
1816 st
->codec
->codec_id
= id
;
1817 mov_parse_stsd_subtitle(c
, pb
, st
, sc
,
1818 size
- (avio_tell(pb
) - start_pos
));
1820 ret
= mov_parse_stsd_data(c
, pb
, st
, sc
,
1821 size
- (avio_tell(pb
) - start_pos
));
1825 /* this will read extra atoms at the end (wave, alac, damr, avcC, hvcC, SMI ...) */
1826 a
.size
= size
- (avio_tell(pb
) - start_pos
);
1828 if ((ret
= mov_read_default(c
, pb
, a
)) < 0)
1830 } else if (a
.size
> 0)
1831 avio_skip(pb
, a
.size
);
1834 if (pb
->eof_reached
)
1837 return mov_finalize_stsd_codec(c
, pb
, st
, sc
);
1840 static int mov_read_stsd(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
1844 avio_r8(pb
); /* version */
1845 avio_rb24(pb
); /* flags */
1846 entries
= avio_rb32(pb
);
1848 return ff_mov_read_stsd_entries(c
, pb
, entries
);
1851 static int mov_read_stsc(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
1854 MOVStreamContext
*sc
;
1855 unsigned int i
, entries
;
1857 if (c
->fc
->nb_streams
< 1)
1859 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
1862 avio_r8(pb
); /* version */
1863 avio_rb24(pb
); /* flags */
1865 entries
= avio_rb32(pb
);
1867 av_dlog(c
->fc
, "track[%i].stsc.entries = %i\n", c
->fc
->nb_streams
-1, entries
);
1872 av_log(c
->fc
, AV_LOG_WARNING
, "Duplicated STSC atom\n");
1873 av_free(sc
->stsc_data
);
1875 sc
->stsc_data
= av_malloc_array(entries
, sizeof(*sc
->stsc_data
));
1877 return AVERROR(ENOMEM
);
1879 for (i
= 0; i
< entries
&& !pb
->eof_reached
; i
++) {
1880 sc
->stsc_data
[i
].first
= avio_rb32(pb
);
1881 sc
->stsc_data
[i
].count
= avio_rb32(pb
);
1882 sc
->stsc_data
[i
].id
= avio_rb32(pb
);
1887 if (pb
->eof_reached
)
1893 static int mov_read_stps(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
1896 MOVStreamContext
*sc
;
1897 unsigned i
, entries
;
1899 if (c
->fc
->nb_streams
< 1)
1901 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
1904 avio_rb32(pb
); // version + flags
1906 entries
= avio_rb32(pb
);
1908 av_log(c
->fc
, AV_LOG_WARNING
, "Duplicated STPS atom\n");
1909 av_free(sc
->stps_data
);
1911 sc
->stps_data
= av_malloc_array(entries
, sizeof(*sc
->stps_data
));
1913 return AVERROR(ENOMEM
);
1915 for (i
= 0; i
< entries
&& !pb
->eof_reached
; i
++) {
1916 sc
->stps_data
[i
] = avio_rb32(pb
);
1917 //av_dlog(c->fc, "stps %d\n", sc->stps_data[i]);
1922 if (pb
->eof_reached
)
1928 static int mov_read_stss(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
1931 MOVStreamContext
*sc
;
1932 unsigned int i
, entries
;
1934 if (c
->fc
->nb_streams
< 1)
1936 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
1939 avio_r8(pb
); /* version */
1940 avio_rb24(pb
); /* flags */
1942 entries
= avio_rb32(pb
);
1944 av_dlog(c
->fc
, "keyframe_count = %d\n", entries
);
1948 sc
->keyframe_absent
= 1;
1949 if (!st
->need_parsing
&& st
->codec
->codec_type
== AVMEDIA_TYPE_VIDEO
)
1950 st
->need_parsing
= AVSTREAM_PARSE_HEADERS
;
1954 av_log(c
->fc
, AV_LOG_WARNING
, "Duplicated STSS atom\n");
1955 av_free(sc
->keyframes
);
1956 sc
->keyframe_count
= 0;
1957 sc
->keyframes
= av_malloc_array(entries
, sizeof(*sc
->keyframes
));
1959 return AVERROR(ENOMEM
);
1961 for (i
= 0; i
< entries
&& !pb
->eof_reached
; i
++) {
1962 sc
->keyframes
[i
] = avio_rb32(pb
);
1963 //av_dlog(c->fc, "keyframes[]=%d\n", sc->keyframes[i]);
1966 sc
->keyframe_count
= i
;
1968 if (pb
->eof_reached
)
1974 static int mov_read_stsz(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
1977 MOVStreamContext
*sc
;
1978 unsigned int i
, entries
, sample_size
, field_size
, num_bytes
;
1982 if (c
->fc
->nb_streams
< 1)
1984 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
1987 avio_r8(pb
); /* version */
1988 avio_rb24(pb
); /* flags */
1990 if (atom
.type
== MKTAG('s','t','s','z')) {
1991 sample_size
= avio_rb32(pb
);
1992 if (!sc
->sample_size
) /* do not overwrite value computed in stsd */
1993 sc
->sample_size
= sample_size
;
1994 sc
->stsz_sample_size
= sample_size
;
1998 avio_rb24(pb
); /* reserved */
1999 field_size
= avio_r8(pb
);
2001 entries
= avio_rb32(pb
);
2003 av_dlog(c
->fc
, "sample_size = %d sample_count = %d\n", sc
->sample_size
, entries
);
2005 sc
->sample_count
= entries
;
2009 if (field_size
!= 4 && field_size
!= 8 && field_size
!= 16 && field_size
!= 32) {
2010 av_log(c
->fc
, AV_LOG_ERROR
, "Invalid sample field size %d\n", field_size
);
2011 return AVERROR_INVALIDDATA
;
2016 if (entries
>= (UINT_MAX
- 4) / field_size
)
2017 return AVERROR_INVALIDDATA
;
2018 if (sc
->sample_sizes
)
2019 av_log(c
->fc
, AV_LOG_WARNING
, "Duplicated STSZ atom\n");
2020 av_free(sc
->sample_sizes
);
2021 sc
->sample_count
= 0;
2022 sc
->sample_sizes
= av_malloc_array(entries
, sizeof(*sc
->sample_sizes
));
2023 if (!sc
->sample_sizes
)
2024 return AVERROR(ENOMEM
);
2026 num_bytes
= (entries
*field_size
+4)>>3;
2028 buf
= av_malloc(num_bytes
+FF_INPUT_BUFFER_PADDING_SIZE
);
2030 av_freep(&sc
->sample_sizes
);
2031 return AVERROR(ENOMEM
);
2034 if (avio_read(pb
, buf
, num_bytes
) < num_bytes
) {
2035 av_freep(&sc
->sample_sizes
);
2037 return AVERROR_INVALIDDATA
;
2040 init_get_bits(&gb
, buf
, 8*num_bytes
);
2042 for (i
= 0; i
< entries
&& !pb
->eof_reached
; i
++) {
2043 sc
->sample_sizes
[i
] = get_bits_long(&gb
, field_size
);
2044 sc
->data_size
+= sc
->sample_sizes
[i
];
2047 sc
->sample_count
= i
;
2049 if (pb
->eof_reached
)
2056 static int mov_read_stts(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
2059 MOVStreamContext
*sc
;
2060 unsigned int i
, entries
;
2062 int64_t total_sample_count
=0;
2064 if (c
->fc
->nb_streams
< 1)
2066 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
2069 avio_r8(pb
); /* version */
2070 avio_rb24(pb
); /* flags */
2071 entries
= avio_rb32(pb
);
2073 av_dlog(c
->fc
, "track[%i].stts.entries = %i\n",
2074 c
->fc
->nb_streams
-1, entries
);
2077 av_log(c
->fc
, AV_LOG_WARNING
, "Duplicated STTS atom\n");
2078 av_free(sc
->stts_data
);
2080 sc
->stts_data
= av_malloc_array(entries
, sizeof(*sc
->stts_data
));
2082 return AVERROR(ENOMEM
);
2084 for (i
= 0; i
< entries
&& !pb
->eof_reached
; i
++) {
2085 int sample_duration
;
2088 sample_count
=avio_rb32(pb
);
2089 sample_duration
= avio_rb32(pb
);
2091 /* sample_duration < 0 is invalid based on the spec */
2092 if (sample_duration
< 0) {
2093 av_log(c
->fc
, AV_LOG_ERROR
, "Invalid SampleDelta %d in STTS, at %d st:%d\n",
2094 sample_duration
, i
, c
->fc
->nb_streams
-1);
2095 sample_duration
= 1;
2097 if (sample_count
< 0) {
2098 av_log(c
->fc
, AV_LOG_ERROR
, "Invalid sample_count=%d\n", sample_count
);
2099 return AVERROR_INVALIDDATA
;
2101 sc
->stts_data
[i
].count
= sample_count
;
2102 sc
->stts_data
[i
].duration
= sample_duration
;
2104 av_dlog(c
->fc
, "sample_count=%d, sample_duration=%d\n",
2105 sample_count
, sample_duration
);
2109 && sample_count
== 1
2110 && total_sample_count
> 100
2111 && sample_duration
/10 > duration
/ total_sample_count
)
2112 sample_duration
= duration
/ total_sample_count
;
2113 duration
+=(int64_t)sample_duration
*sample_count
;
2114 total_sample_count
+=sample_count
;
2119 sc
->duration_for_fps
+= duration
;
2120 sc
->nb_frames_for_fps
+= total_sample_count
;
2122 if (pb
->eof_reached
)
2125 st
->nb_frames
= total_sample_count
;
2127 st
->duration
= duration
;
2128 sc
->track_end
= duration
;
2132 static void mov_update_dts_shift(MOVStreamContext
*sc
, int duration
)
2135 sc
->dts_shift
= FFMAX(sc
->dts_shift
, -duration
);
2139 static int mov_read_ctts(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
2142 MOVStreamContext
*sc
;
2143 unsigned int i
, entries
;
2145 if (c
->fc
->nb_streams
< 1)
2147 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
2150 avio_r8(pb
); /* version */
2151 avio_rb24(pb
); /* flags */
2152 entries
= avio_rb32(pb
);
2154 av_dlog(c
->fc
, "track[%i].ctts.entries = %i\n", c
->fc
->nb_streams
-1, entries
);
2158 if (entries
>= UINT_MAX
/ sizeof(*sc
->ctts_data
))
2159 return AVERROR_INVALIDDATA
;
2160 sc
->ctts_data
= av_malloc(entries
* sizeof(*sc
->ctts_data
));
2162 return AVERROR(ENOMEM
);
2164 for (i
= 0; i
< entries
&& !pb
->eof_reached
; i
++) {
2165 int count
=avio_rb32(pb
);
2166 int duration
=avio_rb32(pb
);
2168 sc
->ctts_data
[i
].count
= count
;
2169 sc
->ctts_data
[i
].duration
= duration
;
2171 av_dlog(c
->fc
, "count=%d, duration=%d\n",
2174 if (FFABS(duration
) > (1<<28) && i
+2<entries
) {
2175 av_log(c
->fc
, AV_LOG_WARNING
, "CTTS invalid\n");
2176 av_freep(&sc
->ctts_data
);
2182 mov_update_dts_shift(sc
, duration
);
2187 if (pb
->eof_reached
)
2190 av_dlog(c
->fc
, "dts shift %d\n", sc
->dts_shift
);
2195 static int mov_read_sbgp(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
2198 MOVStreamContext
*sc
;
2199 unsigned int i
, entries
;
2201 uint32_t grouping_type
;
2203 if (c
->fc
->nb_streams
< 1)
2205 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
2208 version
= avio_r8(pb
); /* version */
2209 avio_rb24(pb
); /* flags */
2210 grouping_type
= avio_rl32(pb
);
2211 if (grouping_type
!= MKTAG( 'r','a','p',' '))
2212 return 0; /* only support 'rap ' grouping */
2214 avio_rb32(pb
); /* grouping_type_parameter */
2216 entries
= avio_rb32(pb
);
2220 av_log(c
->fc
, AV_LOG_WARNING
, "Duplicated SBGP atom\n");
2221 av_free(sc
->rap_group
);
2222 sc
->rap_group_count
= 0;
2223 sc
->rap_group
= av_malloc_array(entries
, sizeof(*sc
->rap_group
));
2225 return AVERROR(ENOMEM
);
2227 for (i
= 0; i
< entries
&& !pb
->eof_reached
; i
++) {
2228 sc
->rap_group
[i
].count
= avio_rb32(pb
); /* sample_count */
2229 sc
->rap_group
[i
].index
= avio_rb32(pb
); /* group_description_index */
2232 sc
->rap_group_count
= i
;
2234 return pb
->eof_reached
? AVERROR_EOF
: 0;
2237 static void mov_build_index(MOVContext
*mov
, AVStream
*st
)
2239 MOVStreamContext
*sc
= st
->priv_data
;
2240 int64_t current_offset
;
2241 int64_t current_dts
= 0;
2242 unsigned int stts_index
= 0;
2243 unsigned int stsc_index
= 0;
2244 unsigned int stss_index
= 0;
2245 unsigned int stps_index
= 0;
2247 uint64_t stream_size
= 0;
2249 /* adjust first dts according to edit list */
2250 if ((sc
->empty_duration
|| sc
->start_time
) && mov
->time_scale
> 0) {
2251 if (sc
->empty_duration
)
2252 sc
->empty_duration
= av_rescale(sc
->empty_duration
, sc
->time_scale
, mov
->time_scale
);
2253 sc
->time_offset
= sc
->start_time
- sc
->empty_duration
;
2254 current_dts
= -sc
->time_offset
;
2255 if (sc
->ctts_count
>0 && sc
->stts_count
>0 &&
2256 sc
->ctts_data
[0].duration
/ FFMAX(sc
->stts_data
[0].duration
, 1) > 16) {
2257 /* more than 16 frames delay, dts are likely wrong
2258 this happens with files created by iMovie */
2260 st
->codec
->has_b_frames
= 1;
2264 /* only use old uncompressed audio chunk demuxing when stts specifies it */
2265 if (!(st
->codec
->codec_type
== AVMEDIA_TYPE_AUDIO
&&
2266 sc
->stts_count
== 1 && sc
->stts_data
[0].duration
== 1)) {
2267 unsigned int current_sample
= 0;
2268 unsigned int stts_sample
= 0;
2269 unsigned int sample_size
;
2270 unsigned int distance
= 0;
2271 unsigned int rap_group_index
= 0;
2272 unsigned int rap_group_sample
= 0;
2273 int rap_group_present
= sc
->rap_group_count
&& sc
->rap_group
;
2274 int key_off
= (sc
->keyframe_count
&& sc
->keyframes
[0] > 0) || (sc
->stps_count
&& sc
->stps_data
[0] > 0);
2276 current_dts
-= sc
->dts_shift
;
2278 if (!sc
->sample_count
|| st
->nb_index_entries
)
2280 if (sc
->sample_count
>= UINT_MAX
/ sizeof(*st
->index_entries
) - st
->nb_index_entries
)
2282 if (av_reallocp_array(&st
->index_entries
,
2283 st
->nb_index_entries
+ sc
->sample_count
,
2284 sizeof(*st
->index_entries
)) < 0) {
2285 st
->nb_index_entries
= 0;
2288 st
->index_entries_allocated_size
= (st
->nb_index_entries
+ sc
->sample_count
) * sizeof(*st
->index_entries
);
2290 for (i
= 0; i
< sc
->chunk_count
; i
++) {
2291 int64_t next_offset
= i
+1 < sc
->chunk_count
? sc
->chunk_offsets
[i
+1] : INT64_MAX
;
2292 current_offset
= sc
->chunk_offsets
[i
];
2293 while (stsc_index
+ 1 < sc
->stsc_count
&&
2294 i
+ 1 == sc
->stsc_data
[stsc_index
+ 1].first
)
2297 if (next_offset
> current_offset
&& sc
->sample_size
>0 && sc
->sample_size
< sc
->stsz_sample_size
&&
2298 sc
->stsc_data
[stsc_index
].count
* (int64_t)sc
->stsz_sample_size
> next_offset
- current_offset
) {
2299 av_log(mov
->fc
, AV_LOG_WARNING
, "STSZ sample size %d invalid (too large), ignoring\n", sc
->stsz_sample_size
);
2300 sc
->stsz_sample_size
= sc
->sample_size
;
2302 if (sc
->stsz_sample_size
>0 && sc
->stsz_sample_size
< sc
->sample_size
) {
2303 av_log(mov
->fc
, AV_LOG_WARNING
, "STSZ sample size %d invalid (too small), ignoring\n", sc
->stsz_sample_size
);
2304 sc
->stsz_sample_size
= sc
->sample_size
;
2307 for (j
= 0; j
< sc
->stsc_data
[stsc_index
].count
; j
++) {
2309 if (current_sample
>= sc
->sample_count
) {
2310 av_log(mov
->fc
, AV_LOG_ERROR
, "wrong sample count\n");
2314 if (!sc
->keyframe_absent
&& (!sc
->keyframe_count
|| current_sample
+key_off
== sc
->keyframes
[stss_index
])) {
2316 if (stss_index
+ 1 < sc
->keyframe_count
)
2318 } else if (sc
->stps_count
&& current_sample
+key_off
== sc
->stps_data
[stps_index
]) {
2320 if (stps_index
+ 1 < sc
->stps_count
)
2323 if (rap_group_present
&& rap_group_index
< sc
->rap_group_count
) {
2324 if (sc
->rap_group
[rap_group_index
].index
> 0)
2326 if (++rap_group_sample
== sc
->rap_group
[rap_group_index
].count
) {
2327 rap_group_sample
= 0;
2331 if (sc
->keyframe_absent
2333 && !rap_group_present
2334 && (st
->codec
->codec_type
== AVMEDIA_TYPE_AUDIO
|| (i
==0 && j
==0)))
2338 sample_size
= sc
->stsz_sample_size
> 0 ? sc
->stsz_sample_size
: sc
->sample_sizes
[current_sample
];
2339 if (sc
->pseudo_stream_id
== -1 ||
2340 sc
->stsc_data
[stsc_index
].id
- 1 == sc
->pseudo_stream_id
) {
2341 AVIndexEntry
*e
= &st
->index_entries
[st
->nb_index_entries
++];
2342 e
->pos
= current_offset
;
2343 e
->timestamp
= current_dts
;
2344 e
->size
= sample_size
;
2345 e
->min_distance
= distance
;
2346 e
->flags
= keyframe
? AVINDEX_KEYFRAME
: 0;
2347 av_dlog(mov
->fc
, "AVIndex stream %d, sample %d, offset %"PRIx64
", dts %"PRId64
", "
2348 "size %d, distance %d, keyframe %d\n", st
->index
, current_sample
,
2349 current_offset
, current_dts
, sample_size
, distance
, keyframe
);
2350 if (st
->codec
->codec_type
== AVMEDIA_TYPE_VIDEO
&& st
->nb_index_entries
< 100)
2351 ff_rfps_add_frame(mov
->fc
, st
, current_dts
);
2354 current_offset
+= sample_size
;
2355 stream_size
+= sample_size
;
2356 current_dts
+= sc
->stts_data
[stts_index
].duration
;
2360 if (stts_index
+ 1 < sc
->stts_count
&& stts_sample
== sc
->stts_data
[stts_index
].count
) {
2366 if (st
->duration
> 0)
2367 st
->codec
->bit_rate
= stream_size
*8*sc
->time_scale
/st
->duration
;
2369 unsigned chunk_samples
, total
= 0;
2371 // compute total chunk count
2372 for (i
= 0; i
< sc
->stsc_count
; i
++) {
2373 unsigned count
, chunk_count
;
2375 chunk_samples
= sc
->stsc_data
[i
].count
;
2376 if (i
!= sc
->stsc_count
- 1 &&
2377 sc
->samples_per_frame
&& chunk_samples
% sc
->samples_per_frame
) {
2378 av_log(mov
->fc
, AV_LOG_ERROR
, "error unaligned chunk\n");
2382 if (sc
->samples_per_frame
>= 160) { // gsm
2383 count
= chunk_samples
/ sc
->samples_per_frame
;
2384 } else if (sc
->samples_per_frame
> 1) {
2385 unsigned samples
= (1024/sc
->samples_per_frame
)*sc
->samples_per_frame
;
2386 count
= (chunk_samples
+samples
-1) / samples
;
2388 count
= (chunk_samples
+1023) / 1024;
2391 if (i
< sc
->stsc_count
- 1)
2392 chunk_count
= sc
->stsc_data
[i
+1].first
- sc
->stsc_data
[i
].first
;
2394 chunk_count
= sc
->chunk_count
- (sc
->stsc_data
[i
].first
- 1);
2395 total
+= chunk_count
* count
;
2398 av_dlog(mov
->fc
, "chunk count %d\n", total
);
2399 if (total
>= UINT_MAX
/ sizeof(*st
->index_entries
) - st
->nb_index_entries
)
2401 if (av_reallocp_array(&st
->index_entries
,
2402 st
->nb_index_entries
+ total
,
2403 sizeof(*st
->index_entries
)) < 0) {
2404 st
->nb_index_entries
= 0;
2407 st
->index_entries_allocated_size
= (st
->nb_index_entries
+ total
) * sizeof(*st
->index_entries
);
2410 for (i
= 0; i
< sc
->chunk_count
; i
++) {
2411 current_offset
= sc
->chunk_offsets
[i
];
2412 if (stsc_index
+ 1 < sc
->stsc_count
&&
2413 i
+ 1 == sc
->stsc_data
[stsc_index
+ 1].first
)
2415 chunk_samples
= sc
->stsc_data
[stsc_index
].count
;
2417 while (chunk_samples
> 0) {
2419 unsigned size
, samples
;
2421 if (sc
->samples_per_frame
>= 160) { // gsm
2422 samples
= sc
->samples_per_frame
;
2423 size
= sc
->bytes_per_frame
;
2425 if (sc
->samples_per_frame
> 1) {
2426 samples
= FFMIN((1024 / sc
->samples_per_frame
)*
2427 sc
->samples_per_frame
, chunk_samples
);
2428 size
= (samples
/ sc
->samples_per_frame
) * sc
->bytes_per_frame
;
2430 samples
= FFMIN(1024, chunk_samples
);
2431 size
= samples
* sc
->sample_size
;
2435 if (st
->nb_index_entries
>= total
) {
2436 av_log(mov
->fc
, AV_LOG_ERROR
, "wrong chunk count %d\n", total
);
2439 e
= &st
->index_entries
[st
->nb_index_entries
++];
2440 e
->pos
= current_offset
;
2441 e
->timestamp
= current_dts
;
2443 e
->min_distance
= 0;
2444 e
->flags
= AVINDEX_KEYFRAME
;
2445 av_dlog(mov
->fc
, "AVIndex stream %d, chunk %d, offset %"PRIx64
", dts %"PRId64
", "
2446 "size %d, duration %d\n", st
->index
, i
, current_offset
, current_dts
,
2449 current_offset
+= size
;
2450 current_dts
+= samples
;
2451 chunk_samples
-= samples
;
2457 static int mov_open_dref(AVIOContext
**pb
, const char *src
, MOVDref
*ref
,
2458 AVIOInterruptCB
*int_cb
, int use_absolute_path
, AVFormatContext
*fc
)
2460 /* try relative path, we do not try the absolute because it can leak information about our
2461 system to an attacker */
2462 if (ref
->nlvl_to
> 0 && ref
->nlvl_from
> 0) {
2463 char filename
[1024];
2464 const char *src_path
;
2467 /* find a source dir */
2468 src_path
= strrchr(src
, '/');
2474 /* find a next level down to target */
2475 for (i
= 0, l
= strlen(ref
->path
) - 1; l
>= 0; l
--)
2476 if (ref
->path
[l
] == '/') {
2477 if (i
== ref
->nlvl_to
- 1)
2483 /* compose filename if next level down to target was found */
2484 if (i
== ref
->nlvl_to
- 1 && src_path
- src
< sizeof(filename
)) {
2485 memcpy(filename
, src
, src_path
- src
);
2486 filename
[src_path
- src
] = 0;
2488 for (i
= 1; i
< ref
->nlvl_from
; i
++)
2489 av_strlcat(filename
, "../", 1024);
2491 av_strlcat(filename
, ref
->path
+ l
+ 1, 1024);
2493 if (!avio_open2(pb
, filename
, AVIO_FLAG_READ
, int_cb
, NULL
))
2496 } else if (use_absolute_path
) {
2497 av_log(fc
, AV_LOG_WARNING
, "Using absolute path on user request, "
2498 "this is a possible security issue\n");
2499 if (!avio_open2(pb
, ref
->path
, AVIO_FLAG_READ
, int_cb
, NULL
))
2503 return AVERROR(ENOENT
);
2506 static void fix_timescale(MOVContext
*c
, MOVStreamContext
*sc
)
2508 if (sc
->time_scale
<= 0) {
2509 av_log(c
->fc
, AV_LOG_WARNING
, "stream %d, timescale not set\n", sc
->ffindex
);
2510 sc
->time_scale
= c
->time_scale
;
2511 if (sc
->time_scale
<= 0)
2516 static int mov_read_trak(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
2519 MOVStreamContext
*sc
;
2522 st
= avformat_new_stream(c
->fc
, NULL
);
2523 if (!st
) return AVERROR(ENOMEM
);
2524 st
->id
= c
->fc
->nb_streams
;
2525 sc
= av_mallocz(sizeof(MOVStreamContext
));
2526 if (!sc
) return AVERROR(ENOMEM
);
2529 st
->codec
->codec_type
= AVMEDIA_TYPE_DATA
;
2530 sc
->ffindex
= st
->index
;
2532 if ((ret
= mov_read_default(c
, pb
, atom
)) < 0)
2536 if (sc
->chunk_count
&& (!sc
->stts_count
|| !sc
->stsc_count
||
2537 (!sc
->sample_size
&& !sc
->sample_count
))) {
2538 av_log(c
->fc
, AV_LOG_ERROR
, "stream %d, missing mandatory atoms, broken header\n",
2543 fix_timescale(c
, sc
);
2545 avpriv_set_pts_info(st
, 64, 1, sc
->time_scale
);
2547 mov_build_index(c
, st
);
2549 if (sc
->dref_id
-1 < sc
->drefs_count
&& sc
->drefs
[sc
->dref_id
-1].path
) {
2550 MOVDref
*dref
= &sc
->drefs
[sc
->dref_id
- 1];
2551 if (mov_open_dref(&sc
->pb
, c
->fc
->filename
, dref
, &c
->fc
->interrupt_callback
,
2552 c
->use_absolute_path
, c
->fc
) < 0)
2553 av_log(c
->fc
, AV_LOG_ERROR
,
2554 "stream %d, error opening alias: path='%s', dir='%s', "
2555 "filename='%s', volume='%s', nlvl_from=%d, nlvl_to=%d\n",
2556 st
->index
, dref
->path
, dref
->dir
, dref
->filename
,
2557 dref
->volume
, dref
->nlvl_from
, dref
->nlvl_to
);
2560 sc
->pb_is_copied
= 1;
2563 if (st
->codec
->codec_type
== AVMEDIA_TYPE_VIDEO
) {
2564 if (!st
->sample_aspect_ratio
.num
&&
2565 (st
->codec
->width
!= sc
->width
|| st
->codec
->height
!= sc
->height
)) {
2566 st
->sample_aspect_ratio
= av_d2q(((double)st
->codec
->height
* sc
->width
) /
2567 ((double)st
->codec
->width
* sc
->height
), INT_MAX
);
2570 #if FF_API_R_FRAME_RATE
2571 if (sc
->stts_count
== 1 || (sc
->stts_count
== 2 && sc
->stts_data
[1].count
== 1))
2572 av_reduce(&st
->r_frame_rate
.num
, &st
->r_frame_rate
.den
,
2573 sc
->time_scale
, sc
->stts_data
[0].duration
, INT_MAX
);
2577 // done for ai5q, ai52, ai55, ai1q, ai12 and ai15.
2578 if (!st
->codec
->extradata_size
&& st
->codec
->codec_id
== AV_CODEC_ID_H264
&&
2579 TAG_IS_AVCI(st
->codec
->codec_tag
)) {
2580 ret
= ff_generate_avci_extradata(st
);
2585 switch (st
->codec
->codec_id
) {
2586 #if CONFIG_H261_DECODER
2587 case AV_CODEC_ID_H261
:
2589 #if CONFIG_H263_DECODER
2590 case AV_CODEC_ID_H263
:
2592 #if CONFIG_MPEG4_DECODER
2593 case AV_CODEC_ID_MPEG4
:
2595 st
->codec
->width
= 0; /* let decoder init width/height */
2596 st
->codec
->height
= 0;
2600 /* Do not need those anymore. */
2601 av_freep(&sc
->chunk_offsets
);
2602 av_freep(&sc
->stsc_data
);
2603 av_freep(&sc
->sample_sizes
);
2604 av_freep(&sc
->keyframes
);
2605 av_freep(&sc
->stts_data
);
2606 av_freep(&sc
->stps_data
);
2607 av_freep(&sc
->rap_group
);
2612 static int mov_read_ilst(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
2615 c
->itunes_metadata
= 1;
2616 ret
= mov_read_default(c
, pb
, atom
);
2617 c
->itunes_metadata
= 0;
2621 static int mov_read_custom_2plus(MOVContext
*c
, AVIOContext
*pb
, int size
)
2623 int64_t end
= avio_tell(pb
) + size
;
2624 uint8_t *key
= NULL
, *val
= NULL
;
2627 MOVStreamContext
*sc
;
2629 if (c
->fc
->nb_streams
< 1)
2631 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
2634 for (i
= 0; i
< 2; i
++) {
2638 if (end
- avio_tell(pb
) <= 12)
2641 len
= avio_rb32(pb
);
2642 tag
= avio_rl32(pb
);
2643 avio_skip(pb
, 4); // flags
2645 if (len
< 12 || len
- 12 > end
- avio_tell(pb
))
2649 if (tag
== MKTAG('n', 'a', 'm', 'e'))
2651 else if (tag
== MKTAG('d', 'a', 't', 'a') && len
> 4) {
2658 *p
= av_malloc(len
+ 1);
2661 avio_read(pb
, *p
, len
);
2666 if (strcmp(key
, "iTunSMPB") == 0) {
2667 int priming
, remainder
, samples
;
2668 if(sscanf(val
, "%*X %X %X %X", &priming
, &remainder
, &samples
) == 3){
2669 if(priming
>0 && priming
<16384)
2670 sc
->start_pad
= priming
;
2673 if (strcmp(key
, "cdec") != 0) {
2674 av_dict_set(&c
->fc
->metadata
, key
, val
,
2675 AV_DICT_DONT_STRDUP_KEY
| AV_DICT_DONT_STRDUP_VAL
);
2680 avio_seek(pb
, end
, SEEK_SET
);
2686 static int mov_read_custom(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
2688 int64_t end
= avio_tell(pb
) + atom
.size
;
2694 len
= avio_rb32(pb
);
2695 tag
= avio_rl32(pb
);
2697 if (len
> atom
.size
)
2700 if (tag
== MKTAG('m', 'e', 'a', 'n') && len
> 12) {
2701 uint8_t domain
[128];
2704 avio_skip(pb
, 4); // flags
2707 domain_len
= avio_get_str(pb
, len
, domain
, sizeof(domain
));
2708 avio_skip(pb
, len
- domain_len
);
2709 return mov_read_custom_2plus(c
, pb
, end
- avio_tell(pb
));
2713 av_log(c
->fc
, AV_LOG_VERBOSE
,
2714 "Unhandled or malformed custom metadata of size %"PRId64
"\n", atom
.size
);
2718 static int mov_read_meta(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
2720 while (atom
.size
> 8) {
2721 uint32_t tag
= avio_rl32(pb
);
2723 if (tag
== MKTAG('h','d','l','r')) {
2724 avio_seek(pb
, -8, SEEK_CUR
);
2726 return mov_read_default(c
, pb
, atom
);
2732 static int mov_read_tkhd(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
2737 int64_t disp_transform
[2];
2738 int display_matrix
[3][3];
2740 MOVStreamContext
*sc
;
2744 if (c
->fc
->nb_streams
< 1)
2746 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
2749 version
= avio_r8(pb
);
2750 flags
= avio_rb24(pb
);
2751 st
->disposition
|= (flags
& MOV_TKHD_FLAG_ENABLED
) ? AV_DISPOSITION_DEFAULT
: 0;
2757 avio_rb32(pb
); /* creation time */
2758 avio_rb32(pb
); /* modification time */
2760 st
->id
= (int)avio_rb32(pb
); /* track id (NOT 0 !)*/
2761 avio_rb32(pb
); /* reserved */
2763 /* highlevel (considering edits) duration in movie timebase */
2764 (version
== 1) ? avio_rb64(pb
) : avio_rb32(pb
);
2765 avio_rb32(pb
); /* reserved */
2766 avio_rb32(pb
); /* reserved */
2768 avio_rb16(pb
); /* layer */
2769 avio_rb16(pb
); /* alternate group */
2770 avio_rb16(pb
); /* volume */
2771 avio_rb16(pb
); /* reserved */
2773 //read in the display matrix (outlined in ISO 14496-12, Section 6.2.2)
2774 // they're kept in fixed point format through all calculations
2775 // save u,v,z to store the whole matrix in the AV_PKT_DATA_DISPLAYMATRIX
2776 // side data, but the scale factor is not needed to calculate aspect ratio
2777 for (i
= 0; i
< 3; i
++) {
2778 display_matrix
[i
][0] = avio_rb32(pb
); // 16.16 fixed point
2779 display_matrix
[i
][1] = avio_rb32(pb
); // 16.16 fixed point
2780 display_matrix
[i
][2] = avio_rb32(pb
); // 2.30 fixed point
2783 width
= avio_rb32(pb
); // 16.16 fixed point track width
2784 height
= avio_rb32(pb
); // 16.16 fixed point track height
2785 sc
->width
= width
>> 16;
2786 sc
->height
= height
>> 16;
2788 // save the matrix and add rotate metadata when it is not the default
2790 if (display_matrix
[0][0] != (1 << 16) ||
2791 display_matrix
[1][1] != (1 << 16) ||
2792 display_matrix
[2][2] != (1 << 30) ||
2793 display_matrix
[0][1] || display_matrix
[0][2] ||
2794 display_matrix
[1][0] || display_matrix
[1][2] ||
2795 display_matrix
[2][0] || display_matrix
[2][1]) {
2799 av_freep(&sc
->display_matrix
);
2800 sc
->display_matrix
= av_malloc(sizeof(int32_t) * 9);
2801 if (!sc
->display_matrix
)
2802 return AVERROR(ENOMEM
);
2804 for (i
= 0; i
< 3; i
++)
2805 for (j
= 0; j
< 3; j
++)
2806 sc
->display_matrix
[i
* 3 + j
] = display_matrix
[j
][i
];
2808 rotate
= av_display_rotation_get(sc
->display_matrix
);
2809 if (!isnan(rotate
)) {
2810 char rotate_buf
[64];
2812 if (rotate
< 0) // for backward compatibility
2814 snprintf(rotate_buf
, sizeof(rotate_buf
), "%g", rotate
);
2815 av_dict_set(&st
->metadata
, "rotate", rotate_buf
, 0);
2819 // transform the display width/height according to the matrix
2820 // skip this if the display matrix is the default identity matrix
2821 // or if it is rotating the picture, ex iPhone 3GS
2822 // to keep the same scale, use [width height 1<<16]
2823 if (width
&& height
&&
2824 ((display_matrix
[0][0] != 65536 ||
2825 display_matrix
[1][1] != 65536) &&
2826 !display_matrix
[0][1] &&
2827 !display_matrix
[1][0] &&
2828 !display_matrix
[2][0] && !display_matrix
[2][1])) {
2829 for (i
= 0; i
< 2; i
++)
2831 (int64_t) width
* display_matrix
[0][i
] +
2832 (int64_t) height
* display_matrix
[1][i
] +
2833 ((int64_t) display_matrix
[2][i
] << 16);
2835 //sample aspect ratio is new width/height divided by old width/height
2836 st
->sample_aspect_ratio
= av_d2q(
2837 ((double) disp_transform
[0] * height
) /
2838 ((double) disp_transform
[1] * width
), INT_MAX
);
2843 static int mov_read_tfhd(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
2845 MOVFragment
*frag
= &c
->fragment
;
2846 MOVTrackExt
*trex
= NULL
;
2847 MOVFragmentIndex
* index
= NULL
;
2848 int flags
, track_id
, i
;
2850 avio_r8(pb
); /* version */
2851 flags
= avio_rb24(pb
);
2853 track_id
= avio_rb32(pb
);
2855 return AVERROR_INVALIDDATA
;
2856 frag
->track_id
= track_id
;
2857 for (i
= 0; i
< c
->trex_count
; i
++)
2858 if (c
->trex_data
[i
].track_id
== frag
->track_id
) {
2859 trex
= &c
->trex_data
[i
];
2863 av_log(c
->fc
, AV_LOG_ERROR
, "could not find corresponding trex\n");
2864 return AVERROR_INVALIDDATA
;
2866 for (i
= 0; i
< c
->fragment_index_count
; i
++) {
2867 MOVFragmentIndex
* candidate
= c
->fragment_index_data
[i
];
2868 if (candidate
->track_id
== frag
->track_id
) {
2869 av_log(c
->fc
, AV_LOG_DEBUG
,
2870 "found fragment index for track %u\n", frag
->track_id
);
2876 frag
->base_data_offset
= flags
& MOV_TFHD_BASE_DATA_OFFSET
?
2877 avio_rb64(pb
) : flags
& MOV_TFHD_DEFAULT_BASE_IS_MOOF
?
2878 frag
->moof_offset
: frag
->implicit_offset
;
2879 frag
->stsd_id
= flags
& MOV_TFHD_STSD_ID
? avio_rb32(pb
) : trex
->stsd_id
;
2881 frag
->duration
= flags
& MOV_TFHD_DEFAULT_DURATION
?
2882 avio_rb32(pb
) : trex
->duration
;
2883 frag
->size
= flags
& MOV_TFHD_DEFAULT_SIZE
?
2884 avio_rb32(pb
) : trex
->size
;
2885 frag
->flags
= flags
& MOV_TFHD_DEFAULT_FLAGS
?
2886 avio_rb32(pb
) : trex
->flags
;
2887 frag
->time
= AV_NOPTS_VALUE
;
2890 for (i
= index
->current_item
; i
< index
->item_count
; i
++) {
2891 if (frag
->implicit_offset
== index
->items
[i
].moof_offset
) {
2892 av_log(c
->fc
, AV_LOG_DEBUG
, "found fragment index entry "
2893 "for track %u and moof_offset %"PRId64
"\n",
2894 frag
->track_id
, index
->items
[i
].moof_offset
);
2895 frag
->time
= index
->items
[i
].time
;
2896 index
->current_item
= i
+ 1;
2901 av_log(c
->fc
, AV_LOG_WARNING
, "track %u has a fragment index "
2902 "but it doesn't have an (in-order) entry for moof_offset "
2903 "%"PRId64
"\n", frag
->track_id
, frag
->implicit_offset
);
2906 av_dlog(c
->fc
, "frag flags 0x%x\n", frag
->flags
);
2910 static int mov_read_chap(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
2912 c
->chapter_track
= avio_rb32(pb
);
2916 static int mov_read_trex(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
2921 if ((uint64_t)c
->trex_count
+1 >= UINT_MAX
/ sizeof(*c
->trex_data
))
2922 return AVERROR_INVALIDDATA
;
2923 if ((err
= av_reallocp_array(&c
->trex_data
, c
->trex_count
+ 1,
2924 sizeof(*c
->trex_data
))) < 0) {
2929 c
->fc
->duration
= AV_NOPTS_VALUE
; // the duration from mvhd is not representing the whole file when fragments are used.
2931 trex
= &c
->trex_data
[c
->trex_count
++];
2932 avio_r8(pb
); /* version */
2933 avio_rb24(pb
); /* flags */
2934 trex
->track_id
= avio_rb32(pb
);
2935 trex
->stsd_id
= avio_rb32(pb
);
2936 trex
->duration
= avio_rb32(pb
);
2937 trex
->size
= avio_rb32(pb
);
2938 trex
->flags
= avio_rb32(pb
);
2942 static int mov_read_tfdt(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
2944 MOVFragment
*frag
= &c
->fragment
;
2945 AVStream
*st
= NULL
;
2946 MOVStreamContext
*sc
;
2949 for (i
= 0; i
< c
->fc
->nb_streams
; i
++) {
2950 if (c
->fc
->streams
[i
]->id
== frag
->track_id
) {
2951 st
= c
->fc
->streams
[i
];
2956 av_log(c
->fc
, AV_LOG_ERROR
, "could not find corresponding track id %d\n", frag
->track_id
);
2957 return AVERROR_INVALIDDATA
;
2960 if (sc
->pseudo_stream_id
+ 1 != frag
->stsd_id
)
2962 version
= avio_r8(pb
);
2963 avio_rb24(pb
); /* flags */
2965 sc
->track_end
= avio_rb64(pb
);
2967 sc
->track_end
= avio_rb32(pb
);
2972 static int mov_read_trun(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
2974 MOVFragment
*frag
= &c
->fragment
;
2975 AVStream
*st
= NULL
;
2976 MOVStreamContext
*sc
;
2980 int data_offset
= 0;
2981 unsigned entries
, first_sample_flags
= frag
->flags
;
2982 int flags
, distance
, i
, found_keyframe
= 0, err
;
2984 for (i
= 0; i
< c
->fc
->nb_streams
; i
++) {
2985 if (c
->fc
->streams
[i
]->id
== frag
->track_id
) {
2986 st
= c
->fc
->streams
[i
];
2991 av_log(c
->fc
, AV_LOG_ERROR
, "could not find corresponding track id %d\n", frag
->track_id
);
2992 return AVERROR_INVALIDDATA
;
2995 if (sc
->pseudo_stream_id
+1 != frag
->stsd_id
&& sc
->pseudo_stream_id
!= -1)
2997 avio_r8(pb
); /* version */
2998 flags
= avio_rb24(pb
);
2999 entries
= avio_rb32(pb
);
3000 av_dlog(c
->fc
, "flags 0x%x entries %d\n", flags
, entries
);
3002 /* Always assume the presence of composition time offsets.
3003 * Without this assumption, for instance, we cannot deal with a track in fragmented movies that meet the following.
3004 * 1) in the initial movie, there are no samples.
3005 * 2) in the first movie fragment, there is only one sample without composition time offset.
3006 * 3) in the subsequent movie fragments, there are samples with composition time offset. */
3007 if (!sc
->ctts_count
&& sc
->sample_count
)
3009 /* Complement ctts table if moov atom doesn't have ctts atom. */
3010 ctts_data
= av_realloc(NULL
, sizeof(*sc
->ctts_data
));
3012 return AVERROR(ENOMEM
);
3013 sc
->ctts_data
= ctts_data
;
3014 sc
->ctts_data
[sc
->ctts_count
].count
= sc
->sample_count
;
3015 sc
->ctts_data
[sc
->ctts_count
].duration
= 0;
3018 if ((uint64_t)entries
+sc
->ctts_count
>= UINT_MAX
/sizeof(*sc
->ctts_data
))
3019 return AVERROR_INVALIDDATA
;
3020 if ((err
= av_reallocp_array(&sc
->ctts_data
, entries
+ sc
->ctts_count
,
3021 sizeof(*sc
->ctts_data
))) < 0) {
3025 if (flags
& MOV_TRUN_DATA_OFFSET
) data_offset
= avio_rb32(pb
);
3026 if (flags
& MOV_TRUN_FIRST_SAMPLE_FLAGS
) first_sample_flags
= avio_rb32(pb
);
3027 dts
= sc
->track_end
- sc
->time_offset
;
3028 offset
= frag
->base_data_offset
+ data_offset
;
3030 av_dlog(c
->fc
, "first sample flags 0x%x\n", first_sample_flags
);
3031 for (i
= 0; i
< entries
&& !pb
->eof_reached
; i
++) {
3032 unsigned sample_size
= frag
->size
;
3033 int sample_flags
= i
? frag
->flags
: first_sample_flags
;
3034 unsigned sample_duration
= frag
->duration
;
3037 if (flags
& MOV_TRUN_SAMPLE_DURATION
) sample_duration
= avio_rb32(pb
);
3038 if (flags
& MOV_TRUN_SAMPLE_SIZE
) sample_size
= avio_rb32(pb
);
3039 if (flags
& MOV_TRUN_SAMPLE_FLAGS
) sample_flags
= avio_rb32(pb
);
3040 sc
->ctts_data
[sc
->ctts_count
].count
= 1;
3041 sc
->ctts_data
[sc
->ctts_count
].duration
= (flags
& MOV_TRUN_SAMPLE_CTS
) ?
3043 mov_update_dts_shift(sc
, sc
->ctts_data
[sc
->ctts_count
].duration
);
3044 if (frag
->time
!= AV_NOPTS_VALUE
) {
3045 if (c
->use_mfra_for
== FF_MOV_FLAG_MFRA_PTS
) {
3046 int64_t pts
= frag
->time
;
3047 av_log(c
->fc
, AV_LOG_DEBUG
, "found frag time %"PRId64
3048 " sc->dts_shift %d ctts.duration %d"
3049 " sc->time_offset %"PRId64
" flags & MOV_TRUN_SAMPLE_CTS %d\n", pts
,
3050 sc
->dts_shift
, sc
->ctts_data
[sc
->ctts_count
].duration
,
3051 sc
->time_offset
, flags
& MOV_TRUN_SAMPLE_CTS
);
3052 dts
= pts
- sc
->dts_shift
;
3053 if (flags
& MOV_TRUN_SAMPLE_CTS
) {
3054 dts
-= sc
->ctts_data
[sc
->ctts_count
].duration
;
3056 dts
-= sc
->time_offset
;
3058 av_log(c
->fc
, AV_LOG_DEBUG
, "calculated into dts %"PRId64
"\n", dts
);
3061 av_log(c
->fc
, AV_LOG_DEBUG
, "found frag time %"PRId64
3062 ", using it for dts\n", dts
);
3064 frag
->time
= AV_NOPTS_VALUE
;
3067 if (st
->codec
->codec_type
== AVMEDIA_TYPE_AUDIO
)
3069 else if (!found_keyframe
)
3070 keyframe
= found_keyframe
=
3071 !(sample_flags
& (MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC
|
3072 MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES
));
3075 av_add_index_entry(st
, offset
, dts
, sample_size
, distance
,
3076 keyframe
? AVINDEX_KEYFRAME
: 0);
3077 av_dlog(c
->fc
, "AVIndex stream %d, sample %d, offset %"PRIx64
", dts %"PRId64
", "
3078 "size %d, distance %d, keyframe %d\n", st
->index
, sc
->sample_count
+i
,
3079 offset
, dts
, sample_size
, distance
, keyframe
);
3081 dts
+= sample_duration
;
3082 offset
+= sample_size
;
3083 sc
->data_size
+= sample_size
;
3084 sc
->duration_for_fps
+= sample_duration
;
3085 sc
->nb_frames_for_fps
++;
3088 if (pb
->eof_reached
)
3091 frag
->implicit_offset
= offset
;
3092 st
->duration
= sc
->track_end
= dts
+ sc
->time_offset
;
3096 /* this atom should be null (from specs), but some buggy files put the 'moov' atom inside it... */
3097 /* like the files created with Adobe Premiere 5.0, for samples see */
3098 /* http://graphics.tudelft.nl/~wouter/publications/soundtests/ */
3099 static int mov_read_wide(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
3104 return 0; /* continue */
3105 if (avio_rb32(pb
) != 0) { /* 0 sized mdat atom... use the 'wide' atom size */
3106 avio_skip(pb
, atom
.size
- 4);
3109 atom
.type
= avio_rl32(pb
);
3111 if (atom
.type
!= MKTAG('m','d','a','t')) {
3112 avio_skip(pb
, atom
.size
);
3115 err
= mov_read_mdat(c
, pb
, atom
);
3119 static int mov_read_cmov(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
3124 uint8_t *moov_data
; /* uncompressed data */
3125 long cmov_len
, moov_len
;
3128 avio_rb32(pb
); /* dcom atom */
3129 if (avio_rl32(pb
) != MKTAG('d','c','o','m'))
3130 return AVERROR_INVALIDDATA
;
3131 if (avio_rl32(pb
) != MKTAG('z','l','i','b')) {
3132 av_log(c
->fc
, AV_LOG_ERROR
, "unknown compression for cmov atom !\n");
3133 return AVERROR_INVALIDDATA
;
3135 avio_rb32(pb
); /* cmvd atom */
3136 if (avio_rl32(pb
) != MKTAG('c','m','v','d'))
3137 return AVERROR_INVALIDDATA
;
3138 moov_len
= avio_rb32(pb
); /* uncompressed size */
3139 cmov_len
= atom
.size
- 6 * 4;
3141 cmov_data
= av_malloc(cmov_len
);
3143 return AVERROR(ENOMEM
);
3144 moov_data
= av_malloc(moov_len
);
3147 return AVERROR(ENOMEM
);
3149 avio_read(pb
, cmov_data
, cmov_len
);
3150 if (uncompress (moov_data
, (uLongf
*) &moov_len
, (const Bytef
*)cmov_data
, cmov_len
) != Z_OK
)
3151 goto free_and_return
;
3152 if (ffio_init_context(&ctx
, moov_data
, moov_len
, 0, NULL
, NULL
, NULL
, NULL
) != 0)
3153 goto free_and_return
;
3154 atom
.type
= MKTAG('m','o','o','v');
3155 atom
.size
= moov_len
;
3156 ret
= mov_read_default(c
, &ctx
, atom
);
3162 av_log(c
->fc
, AV_LOG_ERROR
, "this file requires zlib support compiled in\n");
3163 return AVERROR(ENOSYS
);
3167 /* edit list atom */
3168 static int mov_read_elst(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
3170 MOVStreamContext
*sc
;
3171 int i
, edit_count
, version
, edit_start_index
= 0;
3172 int unsupported
= 0;
3174 if (c
->fc
->nb_streams
< 1 || c
->ignore_editlist
)
3176 sc
= c
->fc
->streams
[c
->fc
->nb_streams
-1]->priv_data
;
3178 version
= avio_r8(pb
); /* version */
3179 avio_rb24(pb
); /* flags */
3180 edit_count
= avio_rb32(pb
); /* entries */
3182 if ((uint64_t)edit_count
*12+8 > atom
.size
)
3183 return AVERROR_INVALIDDATA
;
3185 av_dlog(c
->fc
, "track[%i].edit_count = %i\n", c
->fc
->nb_streams
-1, edit_count
);
3186 for (i
=0; i
<edit_count
; i
++){
3191 duration
= avio_rb64(pb
);
3192 time
= avio_rb64(pb
);
3194 duration
= avio_rb32(pb
); /* segment duration */
3195 time
= (int32_t)avio_rb32(pb
); /* media time */
3197 rate
= avio_rb32(pb
);
3198 if (i
== 0 && time
== -1) {
3199 sc
->empty_duration
= duration
;
3200 edit_start_index
= 1;
3201 } else if (i
== edit_start_index
&& time
>= 0)
3202 sc
->start_time
= time
;
3206 av_dlog(c
->fc
, "duration=%"PRId64
" time=%"PRId64
" rate=%f\n",
3207 duration
, time
, rate
/ 65536.0);
3211 av_log(c
->fc
, AV_LOG_WARNING
, "multiple edit list entries, "
3212 "a/v desync might occur, patch welcome\n");
3217 static int mov_read_tmcd(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
3219 MOVStreamContext
*sc
;
3221 if (c
->fc
->nb_streams
< 1)
3222 return AVERROR_INVALIDDATA
;
3223 sc
= c
->fc
->streams
[c
->fc
->nb_streams
- 1]->priv_data
;
3224 sc
->timecode_track
= avio_rb32(pb
);
3228 static int mov_read_uuid(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
3232 static const uint8_t uuid_isml_manifest
[] = {
3233 0xa5, 0xd4, 0x0b, 0x30, 0xe8, 0x14, 0x11, 0xdd,
3234 0xba, 0x2f, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66
3237 if (atom
.size
< sizeof(uuid
) || atom
.size
== INT64_MAX
)
3238 return AVERROR_INVALIDDATA
;
3240 ret
= avio_read(pb
, uuid
, sizeof(uuid
));
3243 } else if (ret
!= sizeof(uuid
)) {
3244 return AVERROR_INVALIDDATA
;
3246 if (!memcmp(uuid
, uuid_isml_manifest
, sizeof(uuid
))) {
3247 uint8_t *buffer
, *ptr
;
3249 size_t len
= atom
.size
- sizeof(uuid
);
3252 return AVERROR_INVALIDDATA
;
3254 ret
= avio_skip(pb
, 4); // zeroes
3257 buffer
= av_mallocz(len
+ 1);
3259 return AVERROR(ENOMEM
);
3261 ret
= avio_read(pb
, buffer
, len
);
3265 } else if (ret
!= len
) {
3267 return AVERROR_INVALIDDATA
;
3271 while ((ptr
= av_stristr(ptr
, "systemBitrate=\""))) {
3272 ptr
+= sizeof("systemBitrate=\"") - 1;
3273 c
->bitrates_count
++;
3274 c
->bitrates
= av_realloc_f(c
->bitrates
, c
->bitrates_count
, sizeof(*c
->bitrates
));
3276 c
->bitrates_count
= 0;
3278 return AVERROR(ENOMEM
);
3281 ret
= strtol(ptr
, &endptr
, 10);
3282 if (ret
< 0 || errno
|| *endptr
!= '"') {
3283 c
->bitrates
[c
->bitrates_count
- 1] = 0;
3285 c
->bitrates
[c
->bitrates_count
- 1] = ret
;
3294 static int mov_read_free(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
3297 uint8_t content
[16];
3302 ret
= avio_read(pb
, content
, FFMIN(sizeof(content
), atom
.size
));
3308 && !memcmp(content
, "Anevia\x1A\x1A", 8)
3309 && c
->use_mfra_for
== FF_MOV_FLAG_MFRA_AUTO
) {
3310 c
->use_mfra_for
= FF_MOV_FLAG_MFRA_PTS
;
3316 static const MOVParseTableEntry mov_default_parse_table
[] = {
3317 { MKTAG('A','C','L','R'), mov_read_avid
},
3318 { MKTAG('A','P','R','G'), mov_read_avid
},
3319 { MKTAG('A','A','L','P'), mov_read_avid
},
3320 { MKTAG('A','R','E','S'), mov_read_ares
},
3321 { MKTAG('a','v','s','s'), mov_read_avss
},
3322 { MKTAG('c','h','p','l'), mov_read_chpl
},
3323 { MKTAG('c','o','6','4'), mov_read_stco
},
3324 { MKTAG('c','o','l','r'), mov_read_colr
},
3325 { MKTAG('c','t','t','s'), mov_read_ctts
}, /* composition time to sample */
3326 { MKTAG('d','i','n','f'), mov_read_default
},
3327 { MKTAG('d','r','e','f'), mov_read_dref
},
3328 { MKTAG('e','d','t','s'), mov_read_default
},
3329 { MKTAG('e','l','s','t'), mov_read_elst
},
3330 { MKTAG('e','n','d','a'), mov_read_enda
},
3331 { MKTAG('f','i','e','l'), mov_read_fiel
},
3332 { MKTAG('f','t','y','p'), mov_read_ftyp
},
3333 { MKTAG('g','l','b','l'), mov_read_glbl
},
3334 { MKTAG('h','d','l','r'), mov_read_hdlr
},
3335 { MKTAG('i','l','s','t'), mov_read_ilst
},
3336 { MKTAG('j','p','2','h'), mov_read_jp2h
},
3337 { MKTAG('m','d','a','t'), mov_read_mdat
},
3338 { MKTAG('m','d','h','d'), mov_read_mdhd
},
3339 { MKTAG('m','d','i','a'), mov_read_default
},
3340 { MKTAG('m','e','t','a'), mov_read_meta
},
3341 { MKTAG('m','i','n','f'), mov_read_default
},
3342 { MKTAG('m','o','o','f'), mov_read_moof
},
3343 { MKTAG('m','o','o','v'), mov_read_moov
},
3344 { MKTAG('m','v','e','x'), mov_read_default
},
3345 { MKTAG('m','v','h','d'), mov_read_mvhd
},
3346 { MKTAG('S','M','I',' '), mov_read_svq3
},
3347 { MKTAG('a','l','a','c'), mov_read_alac
}, /* alac specific atom */
3348 { MKTAG('a','v','c','C'), mov_read_glbl
},
3349 { MKTAG('p','a','s','p'), mov_read_pasp
},
3350 { MKTAG('s','t','b','l'), mov_read_default
},
3351 { MKTAG('s','t','c','o'), mov_read_stco
},
3352 { MKTAG('s','t','p','s'), mov_read_stps
},
3353 { MKTAG('s','t','r','f'), mov_read_strf
},
3354 { MKTAG('s','t','s','c'), mov_read_stsc
},
3355 { MKTAG('s','t','s','d'), mov_read_stsd
}, /* sample description */
3356 { MKTAG('s','t','s','s'), mov_read_stss
}, /* sync sample */
3357 { MKTAG('s','t','s','z'), mov_read_stsz
}, /* sample size */
3358 { MKTAG('s','t','t','s'), mov_read_stts
},
3359 { MKTAG('s','t','z','2'), mov_read_stsz
}, /* compact sample size */
3360 { MKTAG('t','k','h','d'), mov_read_tkhd
}, /* track header */
3361 { MKTAG('t','f','d','t'), mov_read_tfdt
},
3362 { MKTAG('t','f','h','d'), mov_read_tfhd
}, /* track fragment header */
3363 { MKTAG('t','r','a','k'), mov_read_trak
},
3364 { MKTAG('t','r','a','f'), mov_read_default
},
3365 { MKTAG('t','r','e','f'), mov_read_default
},
3366 { MKTAG('t','m','c','d'), mov_read_tmcd
},
3367 { MKTAG('c','h','a','p'), mov_read_chap
},
3368 { MKTAG('t','r','e','x'), mov_read_trex
},
3369 { MKTAG('t','r','u','n'), mov_read_trun
},
3370 { MKTAG('u','d','t','a'), mov_read_default
},
3371 { MKTAG('w','a','v','e'), mov_read_wave
},
3372 { MKTAG('e','s','d','s'), mov_read_esds
},
3373 { MKTAG('d','a','c','3'), mov_read_dac3
}, /* AC-3 info */
3374 { MKTAG('d','e','c','3'), mov_read_dec3
}, /* EAC-3 info */
3375 { MKTAG('w','i','d','e'), mov_read_wide
}, /* place holder */
3376 { MKTAG('w','f','e','x'), mov_read_wfex
},
3377 { MKTAG('c','m','o','v'), mov_read_cmov
},
3378 { MKTAG('c','h','a','n'), mov_read_chan
}, /* channel layout */
3379 { MKTAG('d','v','c','1'), mov_read_dvc1
},
3380 { MKTAG('s','b','g','p'), mov_read_sbgp
},
3381 { MKTAG('h','v','c','C'), mov_read_glbl
},
3382 { MKTAG('u','u','i','d'), mov_read_uuid
},
3383 { MKTAG('C','i','n', 0x8e), mov_read_targa_y216
},
3384 { MKTAG('f','r','e','e'), mov_read_free
},
3385 { MKTAG('-','-','-','-'), mov_read_custom
},
3389 static int mov_read_default(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
3391 int64_t total_size
= 0;
3395 if (c
->atom_depth
> 10) {
3396 av_log(c
->fc
, AV_LOG_ERROR
, "Atoms too deeply nested\n");
3397 return AVERROR_INVALIDDATA
;
3402 atom
.size
= INT64_MAX
;
3403 while (total_size
+ 8 <= atom
.size
&& !avio_feof(pb
)) {
3404 int (*parse
)(MOVContext
*, AVIOContext
*, MOVAtom
) = NULL
;
3407 if (atom
.size
>= 8) {
3408 a
.size
= avio_rb32(pb
);
3409 a
.type
= avio_rl32(pb
);
3410 if (a
.type
== MKTAG('f','r','e','e') &&
3414 uint32_t *type
= (uint32_t *)buf
+ 1;
3415 avio_read(pb
, buf
, 8);
3416 avio_seek(pb
, -8, SEEK_CUR
);
3417 if (*type
== MKTAG('m','v','h','d') ||
3418 *type
== MKTAG('c','m','o','v')) {
3419 av_log(c
->fc
, AV_LOG_ERROR
, "Detected moov in a free atom.\n");
3420 a
.type
= MKTAG('m','o','o','v');
3423 if (atom
.type
!= MKTAG('r','o','o','t') &&
3424 atom
.type
!= MKTAG('m','o','o','v'))
3426 if (a
.type
== MKTAG('t','r','a','k') || a
.type
== MKTAG('m','d','a','t'))
3428 av_log(c
->fc
, AV_LOG_ERROR
, "Broken file, trak/mdat not at top-level\n");
3435 if (a
.size
== 1 && total_size
+ 8 <= atom
.size
) { /* 64 bit extended size */
3436 a
.size
= avio_rb64(pb
) - 8;
3440 av_dlog(c
->fc
, "type: %08x '%.4s' parent:'%.4s' sz: %"PRId64
" %"PRId64
" %"PRId64
"\n",
3441 a
.type
, (char*)&a
.type
, (char*)&atom
.type
, a
.size
, total_size
, atom
.size
);
3443 a
.size
= atom
.size
- total_size
+ 8;
3448 a
.size
= FFMIN(a
.size
, atom
.size
- total_size
);
3450 for (i
= 0; mov_default_parse_table
[i
].type
; i
++)
3451 if (mov_default_parse_table
[i
].type
== a
.type
) {
3452 parse
= mov_default_parse_table
[i
].parse
;
3456 // container is user data
3457 if (!parse
&& (atom
.type
== MKTAG('u','d','t','a') ||
3458 atom
.type
== MKTAG('i','l','s','t')))
3459 parse
= mov_read_udta_string
;
3461 if (!parse
) { /* skip leaf atoms data */
3462 avio_skip(pb
, a
.size
);
3464 int64_t start_pos
= avio_tell(pb
);
3466 int err
= parse(c
, pb
, a
);
3471 if (c
->found_moov
&& c
->found_mdat
&&
3472 ((!pb
->seekable
|| c
->fc
->flags
& AVFMT_FLAG_IGNIDX
) ||
3473 start_pos
+ a
.size
== avio_size(pb
))) {
3474 if (!pb
->seekable
|| c
->fc
->flags
& AVFMT_FLAG_IGNIDX
)
3475 c
->next_root_atom
= start_pos
+ a
.size
;
3479 left
= a
.size
- avio_tell(pb
) + start_pos
;
3480 if (left
> 0) /* skip garbage at atom end */
3481 avio_skip(pb
, left
);
3482 else if (left
< 0) {
3483 av_log(c
->fc
, AV_LOG_WARNING
,
3484 "overread end of atom '%.4s' by %"PRId64
" bytes\n",
3485 (char*)&a
.type
, -left
);
3486 avio_seek(pb
, left
, SEEK_CUR
);
3490 total_size
+= a
.size
;
3493 if (total_size
< atom
.size
&& atom
.size
< 0x7ffff)
3494 avio_skip(pb
, atom
.size
- total_size
);
3500 static int mov_probe(AVProbeData
*p
)
3505 int moov_offset
= -1;
3507 /* check file header */
3510 /* ignore invalid offset */
3511 if ((offset
+ 8) > (unsigned int)p
->buf_size
)
3513 tag
= AV_RL32(p
->buf
+ offset
+ 4);
3515 /* check for obvious tags */
3516 case MKTAG('m','o','o','v'):
3517 moov_offset
= offset
+ 4;
3518 case MKTAG('m','d','a','t'):
3519 case MKTAG('p','n','o','t'): /* detect movs with preview pics like ew.mov and april.mov */
3520 case MKTAG('u','d','t','a'): /* Packet Video PVAuthor adds this and a lot of more junk */
3521 case MKTAG('f','t','y','p'):
3522 if (AV_RB32(p
->buf
+offset
) < 8 &&
3523 (AV_RB32(p
->buf
+offset
) != 1 ||
3524 offset
+ 12 > (unsigned int)p
->buf_size
||
3525 AV_RB64(p
->buf
+offset
+ 8) == 0)) {
3526 score
= FFMAX(score
, AVPROBE_SCORE_EXTENSION
);
3527 } else if (tag
== MKTAG('f','t','y','p') &&
3528 AV_RL32(p
->buf
+ offset
+ 8) == MKTAG('j','p','2',' ')) {
3529 score
= FFMAX(score
, 5);
3531 score
= AVPROBE_SCORE_MAX
;
3533 offset
= FFMAX(4, AV_RB32(p
->buf
+offset
)) + offset
;
3535 /* those are more common words, so rate then a bit less */
3536 case MKTAG('e','d','i','w'): /* xdcam files have reverted first tags */
3537 case MKTAG('w','i','d','e'):
3538 case MKTAG('f','r','e','e'):
3539 case MKTAG('j','u','n','k'):
3540 case MKTAG('p','i','c','t'):
3541 score
= FFMAX(score
, AVPROBE_SCORE_MAX
- 5);
3542 offset
= FFMAX(4, AV_RB32(p
->buf
+offset
)) + offset
;
3544 case MKTAG(0x82,0x82,0x7f,0x7d):
3545 case MKTAG('s','k','i','p'):
3546 case MKTAG('u','u','i','d'):
3547 case MKTAG('p','r','f','l'):
3548 /* if we only find those cause probedata is too small at least rate them */
3549 score
= FFMAX(score
, AVPROBE_SCORE_EXTENSION
);
3550 offset
= FFMAX(4, AV_RB32(p
->buf
+offset
)) + offset
;
3553 offset
= FFMAX(4, AV_RB32(p
->buf
+offset
)) + offset
;
3556 if(score
> AVPROBE_SCORE_MAX
- 50 && moov_offset
!= -1) {
3557 /* moov atom in the header - we should make sure that this is not a
3558 * MOV-packed MPEG-PS */
3559 offset
= moov_offset
;
3561 while(offset
< (p
->buf_size
- 16)){ /* Sufficient space */
3562 /* We found an actual hdlr atom */
3563 if(AV_RL32(p
->buf
+ offset
) == MKTAG('h','d','l','r') &&
3564 AV_RL32(p
->buf
+ offset
+ 8) == MKTAG('m','h','l','r') &&
3565 AV_RL32(p
->buf
+ offset
+ 12) == MKTAG('M','P','E','G')){
3566 av_log(NULL
, AV_LOG_WARNING
, "Found media data tag MPEG indicating this is a MOV-packed MPEG-PS.\n");
3567 /* We found a media handler reference atom describing an
3568 * MPEG-PS-in-MOV, return a
3569 * low score to force expanding the probe window until
3570 * mpegps_probe finds what it needs */
3581 // must be done after parsing all trak because there's no order requirement
3582 static void mov_read_chapters(AVFormatContext
*s
)
3584 MOVContext
*mov
= s
->priv_data
;
3585 AVStream
*st
= NULL
;
3586 MOVStreamContext
*sc
;
3590 for (i
= 0; i
< s
->nb_streams
; i
++)
3591 if (s
->streams
[i
]->id
== mov
->chapter_track
) {
3596 av_log(s
, AV_LOG_ERROR
, "Referenced QT chapter track not found\n");
3600 st
->discard
= AVDISCARD_ALL
;
3602 cur_pos
= avio_tell(sc
->pb
);
3604 for (i
= 0; i
< st
->nb_index_entries
; i
++) {
3605 AVIndexEntry
*sample
= &st
->index_entries
[i
];
3606 int64_t end
= i
+1 < st
->nb_index_entries
? st
->index_entries
[i
+1].timestamp
: st
->duration
;
3611 if (end
< sample
->timestamp
) {
3612 av_log(s
, AV_LOG_WARNING
, "ignoring stream duration which is shorter than chapters\n");
3613 end
= AV_NOPTS_VALUE
;
3616 if (avio_seek(sc
->pb
, sample
->pos
, SEEK_SET
) != sample
->pos
) {
3617 av_log(s
, AV_LOG_ERROR
, "Chapter %d not found in file\n", i
);
3621 // the first two bytes are the length of the title
3622 len
= avio_rb16(sc
->pb
);
3623 if (len
> sample
->size
-2)
3625 title_len
= 2*len
+ 1;
3626 if (!(title
= av_mallocz(title_len
)))
3629 // The samples could theoretically be in any encoding if there's an encd
3630 // atom following, but in practice are only utf-8 or utf-16, distinguished
3631 // instead by the presence of a BOM
3635 ch
= avio_rb16(sc
->pb
);
3637 avio_get_str16be(sc
->pb
, len
, title
, title_len
);
3638 else if (ch
== 0xfffe)
3639 avio_get_str16le(sc
->pb
, len
, title
, title_len
);
3642 if (len
== 1 || len
== 2)
3645 avio_get_str(sc
->pb
, INT_MAX
, title
+ 2, len
- 1);
3649 avpriv_new_chapter(s
, i
, st
->time_base
, sample
->timestamp
, end
, title
);
3653 avio_seek(sc
->pb
, cur_pos
, SEEK_SET
);
3656 static int parse_timecode_in_framenum_format(AVFormatContext
*s
, AVStream
*st
,
3657 uint32_t value
, int flags
)
3660 char buf
[AV_TIMECODE_STR_SIZE
];
3661 AVRational rate
= {st
->codec
->time_base
.den
,
3662 st
->codec
->time_base
.num
};
3663 int ret
= av_timecode_init(&tc
, rate
, flags
, 0, s
);
3666 av_dict_set(&st
->metadata
, "timecode",
3667 av_timecode_make_string(&tc
, buf
, value
), 0);
3671 static int mov_read_timecode_track(AVFormatContext
*s
, AVStream
*st
)
3673 MOVStreamContext
*sc
= st
->priv_data
;
3675 int64_t cur_pos
= avio_tell(sc
->pb
);
3678 if (!st
->nb_index_entries
)
3681 avio_seek(sc
->pb
, st
->index_entries
->pos
, SEEK_SET
);
3682 value
= avio_rb32(s
->pb
);
3684 if (sc
->tmcd_flags
& 0x0001) flags
|= AV_TIMECODE_FLAG_DROPFRAME
;
3685 if (sc
->tmcd_flags
& 0x0002) flags
|= AV_TIMECODE_FLAG_24HOURSMAX
;
3686 if (sc
->tmcd_flags
& 0x0004) flags
|= AV_TIMECODE_FLAG_ALLOWNEGATIVE
;
3688 /* Assume Counter flag is set to 1 in tmcd track (even though it is likely
3689 * not the case) and thus assume "frame number format" instead of QT one.
3690 * No sample with tmcd track can be found with a QT timecode at the moment,
3691 * despite what the tmcd track "suggests" (Counter flag set to 0 means QT
3693 parse_timecode_in_framenum_format(s
, st
, value
, flags
);
3695 avio_seek(sc
->pb
, cur_pos
, SEEK_SET
);
3699 static int mov_read_close(AVFormatContext
*s
)
3701 MOVContext
*mov
= s
->priv_data
;
3704 for (i
= 0; i
< s
->nb_streams
; i
++) {
3705 AVStream
*st
= s
->streams
[i
];
3706 MOVStreamContext
*sc
= st
->priv_data
;
3708 av_freep(&sc
->ctts_data
);
3709 for (j
= 0; j
< sc
->drefs_count
; j
++) {
3710 av_freep(&sc
->drefs
[j
].path
);
3711 av_freep(&sc
->drefs
[j
].dir
);
3713 av_freep(&sc
->drefs
);
3715 sc
->drefs_count
= 0;
3717 if (!sc
->pb_is_copied
)
3721 av_freep(&sc
->chunk_offsets
);
3722 av_freep(&sc
->stsc_data
);
3723 av_freep(&sc
->sample_sizes
);
3724 av_freep(&sc
->keyframes
);
3725 av_freep(&sc
->stts_data
);
3726 av_freep(&sc
->stps_data
);
3727 av_freep(&sc
->rap_group
);
3728 av_freep(&sc
->display_matrix
);
3731 if (mov
->dv_demux
) {
3732 avformat_free_context(mov
->dv_fctx
);
3733 mov
->dv_fctx
= NULL
;
3736 av_freep(&mov
->trex_data
);
3737 av_freep(&mov
->bitrates
);
3739 for (i
= 0; i
< mov
->fragment_index_count
; i
++) {
3740 MOVFragmentIndex
* index
= mov
->fragment_index_data
[i
];
3741 av_freep(&index
->items
);
3742 av_freep(&mov
->fragment_index_data
[i
]);
3744 av_freep(&mov
->fragment_index_data
);
3749 static int tmcd_is_referenced(AVFormatContext
*s
, int tmcd_id
)
3753 for (i
= 0; i
< s
->nb_streams
; i
++) {
3754 AVStream
*st
= s
->streams
[i
];
3755 MOVStreamContext
*sc
= st
->priv_data
;
3757 if (st
->codec
->codec_type
== AVMEDIA_TYPE_VIDEO
&&
3758 sc
->timecode_track
== tmcd_id
)
3764 /* look for a tmcd track not referenced by any video track, and export it globally */
3765 static void export_orphan_timecode(AVFormatContext
*s
)
3769 for (i
= 0; i
< s
->nb_streams
; i
++) {
3770 AVStream
*st
= s
->streams
[i
];
3772 if (st
->codec
->codec_tag
== MKTAG('t','m','c','d') &&
3773 !tmcd_is_referenced(s
, i
+ 1)) {
3774 AVDictionaryEntry
*tcr
= av_dict_get(st
->metadata
, "timecode", NULL
, 0);
3776 av_dict_set(&s
->metadata
, "timecode", tcr
->value
, 0);
3783 static int read_tfra(MOVContext
*mov
, AVIOContext
*f
)
3785 MOVFragmentIndex
* index
= NULL
;
3786 int version
, fieldlength
, i
, j
;
3787 int64_t pos
= avio_tell(f
);
3788 uint32_t size
= avio_rb32(f
);
3791 if (avio_rb32(f
) != MKBETAG('t', 'f', 'r', 'a')) {
3794 av_log(mov
->fc
, AV_LOG_VERBOSE
, "found tfra\n");
3795 index
= av_mallocz(sizeof(MOVFragmentIndex
));
3797 return AVERROR(ENOMEM
);
3800 tmp
= av_realloc_array(mov
->fragment_index_data
,
3801 mov
->fragment_index_count
+ 1,
3802 sizeof(MOVFragmentIndex
*));
3805 return AVERROR(ENOMEM
);
3807 mov
->fragment_index_data
= tmp
;
3808 mov
->fragment_index_data
[mov
->fragment_index_count
++] = index
;
3810 version
= avio_r8(f
);
3812 index
->track_id
= avio_rb32(f
);
3813 fieldlength
= avio_rb32(f
);
3814 index
->item_count
= avio_rb32(f
);
3815 index
->items
= av_mallocz_array(
3816 index
->item_count
, sizeof(MOVFragmentIndexItem
));
3817 if (!index
->items
) {
3818 index
->item_count
= 0;
3819 return AVERROR(ENOMEM
);
3821 for (i
= 0; i
< index
->item_count
; i
++) {
3822 int64_t time
, offset
;
3824 time
= avio_rb64(f
);
3825 offset
= avio_rb64(f
);
3827 time
= avio_rb32(f
);
3828 offset
= avio_rb32(f
);
3830 index
->items
[i
].time
= time
;
3831 index
->items
[i
].moof_offset
= offset
;
3832 for (j
= 0; j
< ((fieldlength
>> 4) & 3) + 1; j
++)
3834 for (j
= 0; j
< ((fieldlength
>> 2) & 3) + 1; j
++)
3836 for (j
= 0; j
< ((fieldlength
>> 0) & 3) + 1; j
++)
3840 avio_seek(f
, pos
+ size
, SEEK_SET
);
3844 static int mov_read_mfra(MOVContext
*c
, AVIOContext
*f
)
3846 int64_t stream_size
= avio_size(f
);
3847 int64_t original_pos
= avio_tell(f
);
3851 if ((seek_ret
= avio_seek(f
, stream_size
- 4, SEEK_SET
)) < 0) {
3855 mfra_size
= avio_rb32(f
);
3856 if (mfra_size
< 0 || mfra_size
> stream_size
) {
3857 av_log(c
->fc
, AV_LOG_DEBUG
, "doesn't look like mfra (unreasonable size)\n");
3860 if ((seek_ret
= avio_seek(f
, -mfra_size
, SEEK_CUR
)) < 0) {
3864 if (avio_rb32(f
) != mfra_size
) {
3865 av_log(c
->fc
, AV_LOG_DEBUG
, "doesn't look like mfra (size mismatch)\n");
3868 if (avio_rb32(f
) != MKBETAG('m', 'f', 'r', 'a')) {
3869 av_log(c
->fc
, AV_LOG_DEBUG
, "doesn't look like mfra (tag mismatch)\n");
3872 av_log(c
->fc
, AV_LOG_VERBOSE
, "stream has mfra\n");
3874 ret
= read_tfra(c
, f
);
3880 seek_ret
= avio_seek(f
, original_pos
, SEEK_SET
);
3882 av_log(c
->fc
, AV_LOG_ERROR
,
3883 "failed to seek back after looking for mfra\n");
3889 static int mov_read_header(AVFormatContext
*s
)
3891 MOVContext
*mov
= s
->priv_data
;
3892 AVIOContext
*pb
= s
->pb
;
3894 MOVAtom atom
= { AV_RL32("root") };
3898 /* .mov and .mp4 aren't streamable anyway (only progressive download if moov is before mdat) */
3900 atom
.size
= avio_size(pb
);
3902 atom
.size
= INT64_MAX
;
3904 /* check MOV header */
3906 if (mov
->moov_retry
)
3907 avio_seek(pb
, 0, SEEK_SET
);
3908 if ((err
= mov_read_default(mov
, pb
, atom
)) < 0) {
3909 av_log(s
, AV_LOG_ERROR
, "error reading header\n");
3913 } while (pb
->seekable
&& !mov
->found_moov
&& !mov
->moov_retry
++);
3914 if (!mov
->found_moov
) {
3915 av_log(s
, AV_LOG_ERROR
, "moov atom not found\n");
3917 return AVERROR_INVALIDDATA
;
3919 av_dlog(mov
->fc
, "on_parse_exit_offset=%"PRId64
"\n", avio_tell(pb
));
3922 if (mov
->chapter_track
> 0)
3923 mov_read_chapters(s
);
3924 for (i
= 0; i
< s
->nb_streams
; i
++)
3925 if (s
->streams
[i
]->codec
->codec_tag
== AV_RL32("tmcd"))
3926 mov_read_timecode_track(s
, s
->streams
[i
]);
3929 /* copy timecode metadata from tmcd tracks to the related video streams */
3930 for (i
= 0; i
< s
->nb_streams
; i
++) {
3931 AVStream
*st
= s
->streams
[i
];
3932 MOVStreamContext
*sc
= st
->priv_data
;
3933 if (sc
->timecode_track
> 0) {
3934 AVDictionaryEntry
*tcr
;
3935 int tmcd_st_id
= -1;
3937 for (j
= 0; j
< s
->nb_streams
; j
++)
3938 if (s
->streams
[j
]->id
== sc
->timecode_track
)
3941 if (tmcd_st_id
< 0 || tmcd_st_id
== i
)
3943 tcr
= av_dict_get(s
->streams
[tmcd_st_id
]->metadata
, "timecode", NULL
, 0);
3945 av_dict_set(&st
->metadata
, "timecode", tcr
->value
, 0);
3948 export_orphan_timecode(s
);
3950 for (i
= 0; i
< s
->nb_streams
; i
++) {
3951 AVStream
*st
= s
->streams
[i
];
3952 MOVStreamContext
*sc
= st
->priv_data
;
3953 fix_timescale(mov
, sc
);
3954 if(st
->codec
->codec_type
== AVMEDIA_TYPE_AUDIO
&& st
->codec
->codec_id
== AV_CODEC_ID_AAC
) {
3955 st
->skip_samples
= sc
->start_pad
;
3957 if (st
->codec
->codec_type
== AVMEDIA_TYPE_VIDEO
&& sc
->nb_frames_for_fps
> 0 && sc
->duration_for_fps
> 0)
3958 av_reduce(&st
->avg_frame_rate
.num
, &st
->avg_frame_rate
.den
,
3959 sc
->time_scale
*(int64_t)sc
->nb_frames_for_fps
, sc
->duration_for_fps
, INT_MAX
);
3960 if (st
->codec
->codec_type
== AVMEDIA_TYPE_SUBTITLE
) {
3961 if (st
->codec
->width
<= 0 || st
->codec
->height
<= 0) {
3962 st
->codec
->width
= sc
->width
;
3963 st
->codec
->height
= sc
->height
;
3965 if (st
->codec
->codec_id
== AV_CODEC_ID_DVD_SUBTITLE
) {
3966 if ((err
= mov_rewrite_dvd_sub_extradata(st
)) < 0)
3972 if (mov
->trex_data
) {
3973 for (i
= 0; i
< s
->nb_streams
; i
++) {
3974 AVStream
*st
= s
->streams
[i
];
3975 MOVStreamContext
*sc
= st
->priv_data
;
3976 if (st
->duration
> 0)
3977 st
->codec
->bit_rate
= sc
->data_size
* 8 * sc
->time_scale
/ st
->duration
;
3981 if (mov
->use_mfra_for
> 0) {
3982 for (i
= 0; i
< s
->nb_streams
; i
++) {
3983 AVStream
*st
= s
->streams
[i
];
3984 MOVStreamContext
*sc
= st
->priv_data
;
3985 if (sc
->duration_for_fps
> 0) {
3986 st
->codec
->bit_rate
= sc
->data_size
* 8 * sc
->time_scale
/
3987 sc
->duration_for_fps
;
3992 for (i
= 0; i
< mov
->bitrates_count
&& i
< s
->nb_streams
; i
++) {
3993 if (mov
->bitrates
[i
]) {
3994 s
->streams
[i
]->codec
->bit_rate
= mov
->bitrates
[i
];
3998 ff_rfps_calculate(s
);
4000 for (i
= 0; i
< s
->nb_streams
; i
++) {
4001 AVStream
*st
= s
->streams
[i
];
4002 MOVStreamContext
*sc
= st
->priv_data
;
4004 switch (st
->codec
->codec_type
) {
4005 case AVMEDIA_TYPE_AUDIO
:
4006 err
= ff_replaygain_export(st
, s
->metadata
);
4012 case AVMEDIA_TYPE_VIDEO
:
4013 if (sc
->display_matrix
) {
4014 AVPacketSideData
*sd
, *tmp
;
4016 tmp
= av_realloc_array(st
->side_data
,
4017 st
->nb_side_data
+ 1, sizeof(*tmp
));
4019 return AVERROR(ENOMEM
);
4021 st
->side_data
= tmp
;
4024 sd
= &st
->side_data
[st
->nb_side_data
- 1];
4025 sd
->type
= AV_PKT_DATA_DISPLAYMATRIX
;
4026 sd
->size
= sizeof(int32_t) * 9;
4027 sd
->data
= (uint8_t*)sc
->display_matrix
;
4028 sc
->display_matrix
= NULL
;
4037 static AVIndexEntry
*mov_find_next_sample(AVFormatContext
*s
, AVStream
**st
)
4039 AVIndexEntry
*sample
= NULL
;
4040 int64_t best_dts
= INT64_MAX
;
4042 for (i
= 0; i
< s
->nb_streams
; i
++) {
4043 AVStream
*avst
= s
->streams
[i
];
4044 MOVStreamContext
*msc
= avst
->priv_data
;
4045 if (msc
->pb
&& msc
->current_sample
< avst
->nb_index_entries
) {
4046 AVIndexEntry
*current_sample
= &avst
->index_entries
[msc
->current_sample
];
4047 int64_t dts
= av_rescale(current_sample
->timestamp
, AV_TIME_BASE
, msc
->time_scale
);
4048 av_dlog(s
, "stream %d, sample %d, dts %"PRId64
"\n", i
, msc
->current_sample
, dts
);
4049 if (!sample
|| (!s
->pb
->seekable
&& current_sample
->pos
< sample
->pos
) ||
4051 ((msc
->pb
!= s
->pb
&& dts
< best_dts
) || (msc
->pb
== s
->pb
&&
4052 ((FFABS(best_dts
- dts
) <= AV_TIME_BASE
&& current_sample
->pos
< sample
->pos
) ||
4053 (FFABS(best_dts
- dts
) > AV_TIME_BASE
&& dts
< best_dts
)))))) {
4054 sample
= current_sample
;
4063 static int mov_read_packet(AVFormatContext
*s
, AVPacket
*pkt
)
4065 MOVContext
*mov
= s
->priv_data
;
4066 MOVStreamContext
*sc
;
4067 AVIndexEntry
*sample
;
4068 AVStream
*st
= NULL
;
4072 sample
= mov_find_next_sample(s
, &st
);
4074 mov
->found_mdat
= 0;
4075 if (!mov
->next_root_atom
)
4077 avio_seek(s
->pb
, mov
->next_root_atom
, SEEK_SET
);
4078 mov
->next_root_atom
= 0;
4079 if (mov_read_default(mov
, s
->pb
, (MOVAtom
){ AV_RL32("root"), INT64_MAX
}) < 0 ||
4082 av_dlog(s
, "read fragments, offset 0x%"PRIx64
"\n", avio_tell(s
->pb
));
4086 /* must be done just before reading, to avoid infinite loop on sample */
4087 sc
->current_sample
++;
4089 if (mov
->next_root_atom
) {
4090 sample
->pos
= FFMIN(sample
->pos
, mov
->next_root_atom
);
4091 sample
->size
= FFMIN(sample
->size
, (mov
->next_root_atom
- sample
->pos
));
4094 if (st
->discard
!= AVDISCARD_ALL
) {
4095 if (avio_seek(sc
->pb
, sample
->pos
, SEEK_SET
) != sample
->pos
) {
4096 av_log(mov
->fc
, AV_LOG_ERROR
, "stream %d, offset 0x%"PRIx64
": partial file\n",
4097 sc
->ffindex
, sample
->pos
);
4098 return AVERROR_INVALIDDATA
;
4100 ret
= av_get_packet(sc
->pb
, pkt
, sample
->size
);
4103 if (sc
->has_palette
) {
4106 pal
= av_packet_new_side_data(pkt
, AV_PKT_DATA_PALETTE
, AVPALETTE_SIZE
);
4108 av_log(mov
->fc
, AV_LOG_ERROR
, "Cannot append palette to packet\n");
4110 memcpy(pal
, sc
->palette
, AVPALETTE_SIZE
);
4111 sc
->has_palette
= 0;
4114 #if CONFIG_DV_DEMUXER
4115 if (mov
->dv_demux
&& sc
->dv_audio_container
) {
4116 avpriv_dv_produce_packet(mov
->dv_demux
, pkt
, pkt
->data
, pkt
->size
, pkt
->pos
);
4117 av_freep(&pkt
->data
);
4119 ret
= avpriv_dv_get_packet(mov
->dv_demux
, pkt
);
4126 pkt
->stream_index
= sc
->ffindex
;
4127 pkt
->dts
= sample
->timestamp
;
4128 if (sc
->ctts_data
&& sc
->ctts_index
< sc
->ctts_count
) {
4129 pkt
->pts
= pkt
->dts
+ sc
->dts_shift
+ sc
->ctts_data
[sc
->ctts_index
].duration
;
4130 /* update ctts context */
4132 if (sc
->ctts_index
< sc
->ctts_count
&&
4133 sc
->ctts_data
[sc
->ctts_index
].count
== sc
->ctts_sample
) {
4135 sc
->ctts_sample
= 0;
4138 pkt
->dts
= AV_NOPTS_VALUE
;
4140 int64_t next_dts
= (sc
->current_sample
< st
->nb_index_entries
) ?
4141 st
->index_entries
[sc
->current_sample
].timestamp
: st
->duration
;
4142 pkt
->duration
= next_dts
- pkt
->dts
;
4143 pkt
->pts
= pkt
->dts
;
4145 if (st
->discard
== AVDISCARD_ALL
)
4147 pkt
->flags
|= sample
->flags
& AVINDEX_KEYFRAME
? AV_PKT_FLAG_KEY
: 0;
4148 pkt
->pos
= sample
->pos
;
4149 av_dlog(s
, "stream %d, pts %"PRId64
", dts %"PRId64
", pos 0x%"PRIx64
", duration %d\n",
4150 pkt
->stream_index
, pkt
->pts
, pkt
->dts
, pkt
->pos
, pkt
->duration
);
4154 static int mov_seek_stream(AVFormatContext
*s
, AVStream
*st
, int64_t timestamp
, int flags
)
4156 MOVStreamContext
*sc
= st
->priv_data
;
4157 int sample
, time_sample
;
4160 sample
= av_index_search_timestamp(st
, timestamp
, flags
);
4161 av_dlog(s
, "stream %d, timestamp %"PRId64
", sample %d\n", st
->index
, timestamp
, sample
);
4162 if (sample
< 0 && st
->nb_index_entries
&& timestamp
< st
->index_entries
[0].timestamp
)
4164 if (sample
< 0) /* not sure what to do */
4165 return AVERROR_INVALIDDATA
;
4166 sc
->current_sample
= sample
;
4167 av_dlog(s
, "stream %d, found sample %d\n", st
->index
, sc
->current_sample
);
4168 /* adjust ctts index */
4169 if (sc
->ctts_data
) {
4171 for (i
= 0; i
< sc
->ctts_count
; i
++) {
4172 int next
= time_sample
+ sc
->ctts_data
[i
].count
;
4173 if (next
> sc
->current_sample
) {
4175 sc
->ctts_sample
= sc
->current_sample
- time_sample
;
4184 static int mov_read_seek(AVFormatContext
*s
, int stream_index
, int64_t sample_time
, int flags
)
4187 int64_t seek_timestamp
, timestamp
;
4191 if (stream_index
>= s
->nb_streams
)
4192 return AVERROR_INVALIDDATA
;
4194 st
= s
->streams
[stream_index
];
4195 sample
= mov_seek_stream(s
, st
, sample_time
, flags
);
4199 /* adjust seek timestamp to found sample timestamp */
4200 seek_timestamp
= st
->index_entries
[sample
].timestamp
;
4202 for (i
= 0; i
< s
->nb_streams
; i
++) {
4203 MOVStreamContext
*sc
= s
->streams
[i
]->priv_data
;
4205 st
->skip_samples
= (sample_time
<= 0) ? sc
->start_pad
: 0;
4207 if (stream_index
== i
)
4210 timestamp
= av_rescale_q(seek_timestamp
, s
->streams
[stream_index
]->time_base
, st
->time_base
);
4211 mov_seek_stream(s
, st
, timestamp
, flags
);
4216 #define OFFSET(x) offsetof(MOVContext, x)
4217 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM
4218 static const AVOption mov_options
[] = {
4219 {"use_absolute_path",
4220 "allow using absolute path when opening alias, this is a possible security issue",
4221 offsetof(MOVContext
, use_absolute_path
), FF_OPT_TYPE_INT
, {.i64
= 0},
4222 0, 1, AV_OPT_FLAG_VIDEO_PARAM
|AV_OPT_FLAG_DECODING_PARAM
},
4223 {"ignore_editlist", "", offsetof(MOVContext
, ignore_editlist
), FF_OPT_TYPE_INT
, {.i64
= 0},
4224 0, 1, AV_OPT_FLAG_VIDEO_PARAM
|AV_OPT_FLAG_DECODING_PARAM
},
4226 "use mfra for fragment timestamps",
4227 offsetof(MOVContext
, use_mfra_for
), FF_OPT_TYPE_INT
, {.i64
= FF_MOV_FLAG_MFRA_AUTO
},
4228 -1, FF_MOV_FLAG_MFRA_PTS
, AV_OPT_FLAG_VIDEO_PARAM
|AV_OPT_FLAG_DECODING_PARAM
,
4230 {"auto", "auto", 0, AV_OPT_TYPE_CONST
, {.i64
= FF_MOV_FLAG_MFRA_AUTO
}, 0, 0,
4231 AV_OPT_FLAG_VIDEO_PARAM
|AV_OPT_FLAG_DECODING_PARAM
, "use_mfra_for" },
4232 {"dts", "dts", 0, AV_OPT_TYPE_CONST
, {.i64
= FF_MOV_FLAG_MFRA_DTS
}, 0, 0,
4233 AV_OPT_FLAG_VIDEO_PARAM
|AV_OPT_FLAG_DECODING_PARAM
, "use_mfra_for" },
4234 {"pts", "pts", 0, AV_OPT_TYPE_CONST
, {.i64
= FF_MOV_FLAG_MFRA_PTS
}, 0, 0,
4235 AV_OPT_FLAG_VIDEO_PARAM
|AV_OPT_FLAG_DECODING_PARAM
, "use_mfra_for" },
4236 { "export_all", "Export unrecognized metadata entries", OFFSET(export_all
),
4237 AV_OPT_TYPE_INT
, { .i64
= 0 }, 0, 1, .flags
= FLAGS
},
4241 static const AVClass mov_class
= {
4242 .class_name
= "mov,mp4,m4a,3gp,3g2,mj2",
4243 .item_name
= av_default_item_name
,
4244 .option
= mov_options
,
4245 .version
= LIBAVUTIL_VERSION_INT
,
4248 AVInputFormat ff_mov_demuxer
= {
4249 .name
= "mov,mp4,m4a,3gp,3g2,mj2",
4250 .long_name
= NULL_IF_CONFIG_SMALL("QuickTime / MOV"),
4251 .priv_class
= &mov_class
,
4252 .priv_data_size
= sizeof(MOVContext
),
4253 .extensions
= "mov,mp4,m4a,3gp,3g2,mj2",
4254 .read_probe
= mov_probe
,
4255 .read_header
= mov_read_header
,
4256 .read_packet
= mov_read_packet
,
4257 .read_close
= mov_read_close
,
4258 .read_seek
= mov_read_seek
,
4259 .flags
= AVFMT_NO_BYTE_SEEK
,