3 * Copyright (c) 2001 Fabrice Bellard
4 * Copyright (c) 2009 Baptiste Coudurier <baptiste dot coudurier at gmail dot com>
6 * first version by Francois Revol <revol@free.fr>
7 * seek function by Gael Chardon <gael.dev@4now.net>
9 * This file is part of Libav.
11 * Libav is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU Lesser General Public
13 * License as published by the Free Software Foundation; either
14 * version 2.1 of the License, or (at your option) any later version.
16 * Libav is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 * Lesser General Public License for more details.
21 * You should have received a copy of the GNU Lesser General Public
22 * License along with Libav; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
30 #include "libavutil/attributes.h"
31 #include "libavutil/channel_layout.h"
32 #include "libavutil/intreadwrite.h"
33 #include "libavutil/intfloat.h"
34 #include "libavutil/mathematics.h"
35 #include "libavutil/time_internal.h"
36 #include "libavutil/avstring.h"
37 #include "libavutil/dict.h"
38 #include "libavutil/opt.h"
39 #include "libavcodec/ac3tab.h"
42 #include "avio_internal.h"
45 #include "libavcodec/get_bits.h"
48 #include "replaygain.h"
54 #include "qtpalette.h"
60 /* those functions parse an atom */
61 /* links atom IDs to parse functions */
62 typedef struct MOVParseTableEntry
{
64 int (*parse
)(MOVContext
*ctx
, AVIOContext
*pb
, MOVAtom atom
);
67 static int mov_read_default(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
);
69 static int mov_metadata_track_or_disc_number(MOVContext
*c
, AVIOContext
*pb
,
70 unsigned len
, const char *key
)
74 short current
, total
= 0;
75 avio_rb16(pb
); // unknown
76 current
= avio_rb16(pb
);
78 total
= avio_rb16(pb
);
80 snprintf(buf
, sizeof(buf
), "%d", current
);
82 snprintf(buf
, sizeof(buf
), "%d/%d", current
, total
);
83 c
->fc
->event_flags
|= AVFMT_EVENT_FLAG_METADATA_UPDATED
;
84 av_dict_set(&c
->fc
->metadata
, key
, buf
, 0);
89 static int mov_metadata_int8_bypass_padding(MOVContext
*c
, AVIOContext
*pb
,
90 unsigned len
, const char *key
)
94 /* bypass padding bytes */
99 snprintf(buf
, sizeof(buf
), "%d", avio_r8(pb
));
100 c
->fc
->event_flags
|= AVFMT_EVENT_FLAG_METADATA_UPDATED
;
101 av_dict_set(&c
->fc
->metadata
, key
, buf
, 0);
106 static int mov_metadata_int8_no_padding(MOVContext
*c
, AVIOContext
*pb
,
107 unsigned len
, const char *key
)
111 snprintf(buf
, sizeof(buf
), "%d", avio_r8(pb
));
112 c
->fc
->event_flags
|= AVFMT_EVENT_FLAG_METADATA_UPDATED
;
113 av_dict_set(&c
->fc
->metadata
, key
, buf
, 0);
118 static int mov_metadata_gnre(MOVContext
*c
, AVIOContext
*pb
,
119 unsigned len
, const char *key
)
124 avio_r8(pb
); // unknown
127 if (genre
< 1 || genre
> ID3v1_GENRE_MAX
)
129 snprintf(buf
, sizeof(buf
), "%s", ff_id3v1_genre_str
[genre
-1]);
130 c
->fc
->event_flags
|= AVFMT_EVENT_FLAG_METADATA_UPDATED
;
131 av_dict_set(&c
->fc
->metadata
, key
, buf
, 0);
136 static const uint32_t mac_to_unicode
[128] = {
137 0x00C4,0x00C5,0x00C7,0x00C9,0x00D1,0x00D6,0x00DC,0x00E1,
138 0x00E0,0x00E2,0x00E4,0x00E3,0x00E5,0x00E7,0x00E9,0x00E8,
139 0x00EA,0x00EB,0x00ED,0x00EC,0x00EE,0x00EF,0x00F1,0x00F3,
140 0x00F2,0x00F4,0x00F6,0x00F5,0x00FA,0x00F9,0x00FB,0x00FC,
141 0x2020,0x00B0,0x00A2,0x00A3,0x00A7,0x2022,0x00B6,0x00DF,
142 0x00AE,0x00A9,0x2122,0x00B4,0x00A8,0x2260,0x00C6,0x00D8,
143 0x221E,0x00B1,0x2264,0x2265,0x00A5,0x00B5,0x2202,0x2211,
144 0x220F,0x03C0,0x222B,0x00AA,0x00BA,0x03A9,0x00E6,0x00F8,
145 0x00BF,0x00A1,0x00AC,0x221A,0x0192,0x2248,0x2206,0x00AB,
146 0x00BB,0x2026,0x00A0,0x00C0,0x00C3,0x00D5,0x0152,0x0153,
147 0x2013,0x2014,0x201C,0x201D,0x2018,0x2019,0x00F7,0x25CA,
148 0x00FF,0x0178,0x2044,0x20AC,0x2039,0x203A,0xFB01,0xFB02,
149 0x2021,0x00B7,0x201A,0x201E,0x2030,0x00C2,0x00CA,0x00C1,
150 0x00CB,0x00C8,0x00CD,0x00CE,0x00CF,0x00CC,0x00D3,0x00D4,
151 0xF8FF,0x00D2,0x00DA,0x00DB,0x00D9,0x0131,0x02C6,0x02DC,
152 0x00AF,0x02D8,0x02D9,0x02DA,0x00B8,0x02DD,0x02DB,0x02C7,
155 static int mov_read_mac_string(MOVContext
*c
, AVIOContext
*pb
, int len
,
156 char *dst
, int dstlen
)
159 char *end
= dst
+dstlen
-1;
162 for (i
= 0; i
< len
; i
++) {
163 uint8_t t
, c
= avio_r8(pb
);
164 if (c
< 0x80 && p
< end
)
167 PUT_UTF8(mac_to_unicode
[c
-0x80], t
, if (p
< end
) *p
++ = t
;);
173 static int mov_read_covr(MOVContext
*c
, AVIOContext
*pb
, int type
, int len
)
177 MOVStreamContext
*sc
;
182 case 0xd: id
= AV_CODEC_ID_MJPEG
; break;
183 case 0xe: id
= AV_CODEC_ID_PNG
; break;
184 case 0x1b: id
= AV_CODEC_ID_BMP
; break;
186 av_log(c
->fc
, AV_LOG_WARNING
, "Unknown cover type: 0x%x.\n", type
);
191 st
= avformat_new_stream(c
->fc
, NULL
);
193 return AVERROR(ENOMEM
);
194 sc
= av_mallocz(sizeof(*sc
));
196 return AVERROR(ENOMEM
);
199 ret
= av_get_packet(pb
, &pkt
, len
);
203 st
->disposition
|= AV_DISPOSITION_ATTACHED_PIC
;
205 st
->attached_pic
= pkt
;
206 st
->attached_pic
.stream_index
= st
->index
;
207 st
->attached_pic
.flags
|= AV_PKT_FLAG_KEY
;
209 st
->codec
->codec_type
= AVMEDIA_TYPE_VIDEO
;
210 st
->codec
->codec_id
= id
;
215 static int mov_metadata_loci(MOVContext
*c
, AVIOContext
*pb
, unsigned len
)
217 char language
[4] = { 0 };
219 uint16_t langcode
= 0;
220 double longitude
, latitude
;
221 const char *key
= "location";
223 if (len
< 4 + 2 + 1 + 1 + 4 + 4 + 4)
224 return AVERROR_INVALIDDATA
;
226 avio_skip(pb
, 4); // version+flags
227 langcode
= avio_rb16(pb
);
228 ff_mov_lang_to_iso639(langcode
, language
);
231 len
-= avio_get_str(pb
, len
, buf
, sizeof(buf
)); // place name
233 return AVERROR_INVALIDDATA
;
234 avio_skip(pb
, 1); // role
238 return AVERROR_INVALIDDATA
;
239 longitude
= ((int32_t) avio_rb32(pb
)) / (float) (1 << 16);
240 latitude
= ((int32_t) avio_rb32(pb
)) / (float) (1 << 16);
242 // Try to output in the same format as the ?xyz field
243 snprintf(buf
, sizeof(buf
), "%+08.4f%+09.4f/", latitude
, longitude
);
244 if (*language
&& strcmp(language
, "und")) {
246 snprintf(key2
, sizeof(key2
), "%s-%s", key
, language
);
247 av_dict_set(&c
->fc
->metadata
, key2
, buf
, 0);
249 c
->fc
->event_flags
|= AVFMT_EVENT_FLAG_METADATA_UPDATED
;
250 return av_dict_set(&c
->fc
->metadata
, key
, buf
, 0);
253 static int mov_read_udta_string(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
256 char *str
, key2
[32], language
[4] = {0};
257 const char *key
= NULL
;
258 uint16_t langcode
= 0;
259 uint32_t data_type
= 0, str_size
, str_size_alloc
;
260 int (*parse
)(MOVContext
*, AVIOContext
*, unsigned, const char*) = NULL
;
264 case MKTAG( '@','P','R','M'): key
= "premiere_version"; raw
= 1; break;
265 case MKTAG( '@','P','R','Q'): key
= "quicktime_version"; raw
= 1; break;
266 case MKTAG( 'X','M','P','_'):
267 if (c
->export_xmp
) { key
= "xmp"; raw
= 1; } break;
268 case MKTAG( 'a','A','R','T'): key
= "album_artist"; break;
269 case MKTAG( 'a','k','I','D'): key
= "account_type";
270 parse
= mov_metadata_int8_no_padding
; break;
271 case MKTAG( 'a','p','I','D'): key
= "account_id"; break;
272 case MKTAG( 'c','a','t','g'): key
= "category"; break;
273 case MKTAG( 'c','p','i','l'): key
= "compilation";
274 parse
= mov_metadata_int8_no_padding
; break;
275 case MKTAG( 'c','p','r','t'): key
= "copyright"; break;
276 case MKTAG( 'd','e','s','c'): key
= "description"; break;
277 case MKTAG( 'd','i','s','k'): key
= "disc";
278 parse
= mov_metadata_track_or_disc_number
; break;
279 case MKTAG( 'e','g','i','d'): key
= "episode_uid";
280 parse
= mov_metadata_int8_no_padding
; break;
281 case MKTAG( 'g','n','r','e'): key
= "genre";
282 parse
= mov_metadata_gnre
; break;
283 case MKTAG( 'h','d','v','d'): key
= "hd_video";
284 parse
= mov_metadata_int8_no_padding
; break;
285 case MKTAG( 'k','e','y','w'): key
= "keywords"; break;
286 case MKTAG( 'l','d','e','s'): key
= "synopsis"; break;
287 case MKTAG( 'l','o','c','i'):
288 return mov_metadata_loci(c
, pb
, atom
.size
);
289 case MKTAG( 'p','c','s','t'): key
= "podcast";
290 parse
= mov_metadata_int8_no_padding
; break;
291 case MKTAG( 'p','g','a','p'): key
= "gapless_playback";
292 parse
= mov_metadata_int8_no_padding
; break;
293 case MKTAG( 'p','u','r','d'): key
= "purchase_date"; break;
294 case MKTAG( 'r','t','n','g'): key
= "rating";
295 parse
= mov_metadata_int8_no_padding
; break;
296 case MKTAG( 's','o','a','a'): key
= "sort_album_artist"; break;
297 case MKTAG( 's','o','a','l'): key
= "sort_album"; break;
298 case MKTAG( 's','o','a','r'): key
= "sort_artist"; break;
299 case MKTAG( 's','o','c','o'): key
= "sort_composer"; break;
300 case MKTAG( 's','o','n','m'): key
= "sort_name"; break;
301 case MKTAG( 's','o','s','n'): key
= "sort_show"; break;
302 case MKTAG( 's','t','i','k'): key
= "media_type";
303 parse
= mov_metadata_int8_no_padding
; break;
304 case MKTAG( 't','r','k','n'): key
= "track";
305 parse
= mov_metadata_track_or_disc_number
; break;
306 case MKTAG( 't','v','e','n'): key
= "episode_id"; break;
307 case MKTAG( 't','v','e','s'): key
= "episode_sort";
308 parse
= mov_metadata_int8_bypass_padding
; break;
309 case MKTAG( 't','v','n','n'): key
= "network"; break;
310 case MKTAG( 't','v','s','h'): key
= "show"; break;
311 case MKTAG( 't','v','s','n'): key
= "season_number";
312 parse
= mov_metadata_int8_bypass_padding
; break;
313 case MKTAG(0xa9,'A','R','T'): key
= "artist"; break;
314 case MKTAG(0xa9,'P','R','D'): key
= "producer"; break;
315 case MKTAG(0xa9,'a','l','b'): key
= "album"; break;
316 case MKTAG(0xa9,'a','u','t'): key
= "artist"; break;
317 case MKTAG(0xa9,'c','h','p'): key
= "chapter"; break;
318 case MKTAG(0xa9,'c','m','t'): key
= "comment"; break;
319 case MKTAG(0xa9,'c','o','m'): key
= "composer"; break;
320 case MKTAG(0xa9,'c','p','y'): key
= "copyright"; break;
321 case MKTAG(0xa9,'d','a','y'): key
= "date"; break;
322 case MKTAG(0xa9,'d','i','r'): key
= "director"; break;
323 case MKTAG(0xa9,'d','i','s'): key
= "disclaimer"; break;
324 case MKTAG(0xa9,'e','d','1'): key
= "edit_date"; break;
325 case MKTAG(0xa9,'e','n','c'): key
= "encoder"; break;
326 case MKTAG(0xa9,'f','m','t'): key
= "original_format"; break;
327 case MKTAG(0xa9,'g','e','n'): key
= "genre"; break;
328 case MKTAG(0xa9,'g','r','p'): key
= "grouping"; break;
329 case MKTAG(0xa9,'h','s','t'): key
= "host_computer"; break;
330 case MKTAG(0xa9,'i','n','f'): key
= "comment"; break;
331 case MKTAG(0xa9,'l','y','r'): key
= "lyrics"; break;
332 case MKTAG(0xa9,'m','a','k'): key
= "make"; break;
333 case MKTAG(0xa9,'m','o','d'): key
= "model"; break;
334 case MKTAG(0xa9,'n','a','m'): key
= "title"; break;
335 case MKTAG(0xa9,'o','p','e'): key
= "original_artist"; break;
336 case MKTAG(0xa9,'p','r','d'): key
= "producer"; break;
337 case MKTAG(0xa9,'p','r','f'): key
= "performers"; break;
338 case MKTAG(0xa9,'r','e','q'): key
= "playback_requirements"; break;
339 case MKTAG(0xa9,'s','r','c'): key
= "original_source"; break;
340 case MKTAG(0xa9,'s','t','3'): key
= "subtitle"; break;
341 case MKTAG(0xa9,'s','w','r'): key
= "encoder"; break;
342 case MKTAG(0xa9,'t','o','o'): key
= "encoder"; break;
343 case MKTAG(0xa9,'t','r','k'): key
= "track"; break;
344 case MKTAG(0xa9,'u','r','l'): key
= "URL"; break;
345 case MKTAG(0xa9,'w','r','n'): key
= "warning"; break;
346 case MKTAG(0xa9,'w','r','t'): key
= "composer"; break;
347 case MKTAG(0xa9,'x','y','z'): key
= "location"; break;
350 if (c
->itunes_metadata
&& atom
.size
> 8) {
351 int data_size
= avio_rb32(pb
);
352 int tag
= avio_rl32(pb
);
353 if (tag
== MKTAG('d','a','t','a')) {
354 data_type
= avio_rb32(pb
); // type
355 avio_rb32(pb
); // unknown
356 str_size
= data_size
- 16;
359 if (atom
.type
== MKTAG('c', 'o', 'v', 'r')) {
360 int ret
= mov_read_covr(c
, pb
, data_type
, str_size
);
362 av_log(c
->fc
, AV_LOG_ERROR
, "Error parsing cover art.\n");
367 } else if (atom
.size
> 4 && key
&& !c
->itunes_metadata
&& !raw
) {
368 str_size
= avio_rb16(pb
); // string length
369 langcode
= avio_rb16(pb
);
370 ff_mov_lang_to_iso639(langcode
, language
);
373 str_size
= atom
.size
;
375 if (c
->export_all
&& !key
) {
376 snprintf(tmp_key
, 5, "%.4s", (char*)&atom
.type
);
383 return AVERROR_INVALIDDATA
;
385 // allocate twice as much as worst-case
386 str_size_alloc
= (raw ? str_size
: str_size
* 2) + 1;
387 str
= av_malloc(str_size_alloc
);
389 return AVERROR(ENOMEM
);
392 parse(c
, pb
, str_size
, key
);
394 if (!raw
&& (data_type
== 3 || (data_type
== 0 && (langcode
< 0x400 || langcode
== 0x7fff)))) { // MAC Encoded
395 mov_read_mac_string(c
, pb
, str_size
, str
, str_size_alloc
);
397 avio_read(pb
, str
, str_size
);
400 c
->fc
->event_flags
|= AVFMT_EVENT_FLAG_METADATA_UPDATED
;
401 av_dict_set(&c
->fc
->metadata
, key
, str
, 0);
402 if (*language
&& strcmp(language
, "und")) {
403 snprintf(key2
, sizeof(key2
), "%s-%s", key
, language
);
404 av_dict_set(&c
->fc
->metadata
, key2
, str
, 0);
407 av_log(c
->fc
, AV_LOG_TRACE
, "lang \"%3s\" ", language
);
408 av_log(c
->fc
, AV_LOG_TRACE
, "tag \"%s\" value \"%s\" atom \"%.4s\" %d %"PRId64
"\n",
409 key
, str
, (char*)&atom
.type
, str_size_alloc
, atom
.size
);
415 static int mov_read_chpl(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
418 int i
, nb_chapters
, str_len
, version
;
421 if ((atom
.size
-= 5) < 0)
424 version
= avio_r8(pb
);
427 avio_rb32(pb
); // ???
428 nb_chapters
= avio_r8(pb
);
430 for (i
= 0; i
< nb_chapters
; i
++) {
434 start
= avio_rb64(pb
);
435 str_len
= avio_r8(pb
);
437 if ((atom
.size
-= 9+str_len
) < 0)
440 avio_read(pb
, str
, str_len
);
442 avpriv_new_chapter(c
->fc
, i
, (AVRational
){1,10000000}, start
, AV_NOPTS_VALUE
, str
);
447 #define MIN_DATA_ENTRY_BOX_SIZE 12
448 static int mov_read_dref(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
451 MOVStreamContext
*sc
;
454 if (c
->fc
->nb_streams
< 1)
456 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
459 avio_rb32(pb
); // version + flags
460 entries
= avio_rb32(pb
);
461 if (entries
> (atom
.size
- 1) / MIN_DATA_ENTRY_BOX_SIZE
+ 1 ||
462 entries
>= UINT_MAX
/ sizeof(*sc
->drefs
))
463 return AVERROR_INVALIDDATA
;
465 sc
->drefs
= av_mallocz(entries
* sizeof(*sc
->drefs
));
467 return AVERROR(ENOMEM
);
468 sc
->drefs_count
= entries
;
470 for (i
= 0; i
< sc
->drefs_count
; i
++) {
471 MOVDref
*dref
= &sc
->drefs
[i
];
472 uint32_t size
= avio_rb32(pb
);
473 int64_t next
= avio_tell(pb
) + size
- 4;
476 return AVERROR_INVALIDDATA
;
478 dref
->type
= avio_rl32(pb
);
479 avio_rb32(pb
); // version + flags
480 av_log(c
->fc
, AV_LOG_TRACE
, "type %.4s size %d\n", (char*)&dref
->type
, size
);
482 if (dref
->type
== MKTAG('a','l','i','s') && size
> 150) {
483 /* macintosh alias record */
484 uint16_t volume_len
, len
;
489 volume_len
= avio_r8(pb
);
490 volume_len
= FFMIN(volume_len
, 27);
491 avio_read(pb
, dref
->volume
, 27);
492 dref
->volume
[volume_len
] = 0;
493 av_log(c
->fc
, AV_LOG_DEBUG
, "volume %s, len %d\n", dref
->volume
, volume_len
);
498 len
= FFMIN(len
, 63);
499 avio_read(pb
, dref
->filename
, 63);
500 dref
->filename
[len
] = 0;
501 av_log(c
->fc
, AV_LOG_DEBUG
, "filename %s, len %d\n", dref
->filename
, len
);
505 /* read next level up_from_alias/down_to_target */
506 dref
->nlvl_from
= avio_rb16(pb
);
507 dref
->nlvl_to
= avio_rb16(pb
);
508 av_log(c
->fc
, AV_LOG_DEBUG
, "nlvl from %d, nlvl to %d\n",
509 dref
->nlvl_from
, dref
->nlvl_to
);
513 for (type
= 0; type
!= -1 && avio_tell(pb
) < next
; ) {
516 type
= avio_rb16(pb
);
518 av_log(c
->fc
, AV_LOG_DEBUG
, "type %d, len %d\n", type
, len
);
521 if (type
== 2 || type
== 18) { // absolute path
523 dref
->path
= av_mallocz(len
+1);
525 return AVERROR(ENOMEM
);
526 avio_read(pb
, dref
->path
, len
);
527 if (type
== 18) // no additional processing needed
529 if (len
> volume_len
&& !strncmp(dref
->path
, dref
->volume
, volume_len
)) {
531 memmove(dref
->path
, dref
->path
+volume_len
, len
);
534 for (j
= 0; j
< len
; j
++)
535 if (dref
->path
[j
] == ':')
537 av_log(c
->fc
, AV_LOG_DEBUG
, "path %s\n", dref
->path
);
538 } else if (type
== 0) { // directory name
540 dref
->dir
= av_malloc(len
+1);
542 return AVERROR(ENOMEM
);
543 avio_read(pb
, dref
->dir
, len
);
545 for (j
= 0; j
< len
; j
++)
546 if (dref
->dir
[j
] == ':')
548 av_log(c
->fc
, AV_LOG_DEBUG
, "dir %s\n", dref
->dir
);
553 avio_seek(pb
, next
, SEEK_SET
);
558 static int mov_read_hdlr(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
562 uint32_t av_unused ctype
;
566 if (c
->fc
->nb_streams
< 1) // meta before first trak
569 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
571 avio_r8(pb
); /* version */
572 avio_rb24(pb
); /* flags */
575 ctype
= avio_rl32(pb
);
576 type
= avio_rl32(pb
); /* component subtype */
578 av_log(c
->fc
, AV_LOG_TRACE
, "ctype= %.4s (0x%08x)\n", (char*)&ctype
, ctype
);
579 av_log(c
->fc
, AV_LOG_TRACE
, "stype= %.4s\n", (char*)&type
);
581 if (type
== MKTAG('v','i','d','e'))
582 st
->codec
->codec_type
= AVMEDIA_TYPE_VIDEO
;
583 else if (type
== MKTAG('s','o','u','n'))
584 st
->codec
->codec_type
= AVMEDIA_TYPE_AUDIO
;
585 else if (type
== MKTAG('m','1','a',' '))
586 st
->codec
->codec_id
= AV_CODEC_ID_MP2
;
587 else if ((type
== MKTAG('s','u','b','p')) || (type
== MKTAG('c','l','c','p')))
588 st
->codec
->codec_type
= AVMEDIA_TYPE_SUBTITLE
;
590 avio_rb32(pb
); /* component manufacture */
591 avio_rb32(pb
); /* component flags */
592 avio_rb32(pb
); /* component flags mask */
594 title_size
= atom
.size
- 24;
595 if (title_size
> 0) {
596 title_str
= av_malloc(title_size
+ 1); /* Add null terminator */
598 return AVERROR(ENOMEM
);
599 avio_read(pb
, title_str
, title_size
);
600 title_str
[title_size
] = 0;
602 int off
= (!c
->isom
&& title_str
[0] == title_size
- 1);
603 av_dict_set(&st
->metadata
, "handler_name", title_str
+ off
, 0);
605 av_freep(&title_str
);
611 int ff_mov_read_esds(AVFormatContext
*fc
, AVIOContext
*pb
)
616 if (fc
->nb_streams
< 1)
618 st
= fc
->streams
[fc
->nb_streams
-1];
620 avio_rb32(pb
); /* version + flags */
621 ff_mp4_read_descr(fc
, pb
, &tag
);
622 if (tag
== MP4ESDescrTag
) {
623 ff_mp4_parse_es_descr(pb
, NULL
);
625 avio_rb16(pb
); /* ID */
627 ff_mp4_read_descr(fc
, pb
, &tag
);
628 if (tag
== MP4DecConfigDescrTag
)
629 ff_mp4_read_dec_config_descr(fc
, st
, pb
);
633 static int mov_read_esds(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
635 return ff_mov_read_esds(c
->fc
, pb
);
638 static int mov_read_dac3(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
641 enum AVAudioServiceType
*ast
;
642 int ac3info
, acmod
, lfeon
, bsmod
;
644 if (c
->fc
->nb_streams
< 1)
646 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
648 ast
= (enum AVAudioServiceType
*)ff_stream_new_side_data(st
, AV_PKT_DATA_AUDIO_SERVICE_TYPE
,
651 return AVERROR(ENOMEM
);
653 ac3info
= avio_rb24(pb
);
654 bsmod
= (ac3info
>> 14) & 0x7;
655 acmod
= (ac3info
>> 11) & 0x7;
656 lfeon
= (ac3info
>> 10) & 0x1;
657 st
->codec
->channels
= ((int[]){2,1,2,3,3,4,4,5})[acmod
] + lfeon
;
658 st
->codec
->channel_layout
= avpriv_ac3_channel_layout_tab
[acmod
];
660 st
->codec
->channel_layout
|= AV_CH_LOW_FREQUENCY
;
662 if (st
->codec
->channels
> 1 && bsmod
== 0x7)
663 *ast
= AV_AUDIO_SERVICE_TYPE_KARAOKE
;
665 st
->codec
->audio_service_type
= *ast
;
670 static int mov_read_dec3(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
673 enum AVAudioServiceType
*ast
;
674 int eac3info
, acmod
, lfeon
, bsmod
;
676 if (c
->fc
->nb_streams
< 1)
678 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
680 ast
= (enum AVAudioServiceType
*)ff_stream_new_side_data(st
, AV_PKT_DATA_AUDIO_SERVICE_TYPE
,
683 return AVERROR(ENOMEM
);
685 /* No need to parse fields for additional independent substreams and its
686 * associated dependent substreams since libavcodec's E-AC-3 decoder
687 * does not support them yet. */
688 avio_rb16(pb
); /* data_rate and num_ind_sub */
689 eac3info
= avio_rb24(pb
);
690 bsmod
= (eac3info
>> 12) & 0x1f;
691 acmod
= (eac3info
>> 9) & 0x7;
692 lfeon
= (eac3info
>> 8) & 0x1;
693 st
->codec
->channel_layout
= avpriv_ac3_channel_layout_tab
[acmod
];
695 st
->codec
->channel_layout
|= AV_CH_LOW_FREQUENCY
;
696 st
->codec
->channels
= av_get_channel_layout_nb_channels(st
->codec
->channel_layout
);
698 if (st
->codec
->channels
> 1 && bsmod
== 0x7)
699 *ast
= AV_AUDIO_SERVICE_TYPE_KARAOKE
;
701 st
->codec
->audio_service_type
= *ast
;
706 static int mov_read_chan(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
710 if (c
->fc
->nb_streams
< 1)
712 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
717 /* skip version and flags */
720 ff_mov_read_chan(c
->fc
, pb
, st
, atom
.size
- 4);
725 static int mov_read_wfex(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
729 if (c
->fc
->nb_streams
< 1)
731 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
733 return ff_get_wav_header(pb
, st
->codec
, atom
.size
);
736 static int mov_read_pasp(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
738 const int num
= avio_rb32(pb
);
739 const int den
= avio_rb32(pb
);
742 if (c
->fc
->nb_streams
< 1)
744 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
746 if ((st
->sample_aspect_ratio
.den
!= 1 || st
->sample_aspect_ratio
.num
) && // default
747 (den
!= st
->sample_aspect_ratio
.den
|| num
!= st
->sample_aspect_ratio
.num
)) {
748 av_log(c
->fc
, AV_LOG_WARNING
,
749 "sample aspect ratio already set to %d:%d, ignoring 'pasp' atom (%d:%d)\n",
750 st
->sample_aspect_ratio
.num
, st
->sample_aspect_ratio
.den
,
752 } else if (den
!= 0) {
753 st
->sample_aspect_ratio
.num
= num
;
754 st
->sample_aspect_ratio
.den
= den
;
759 /* this atom contains actual media data */
760 static int mov_read_mdat(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
762 if (atom
.size
== 0) /* wrong one (MP4) */
765 return 0; /* now go for moov */
768 /* read major brand, minor version and compatible brands and store them as metadata */
769 static int mov_read_ftyp(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
773 char minor_ver_str
[11]; /* 32 bit integer -> 10 digits + null */
774 char* comp_brands_str
;
775 uint8_t type
[5] = {0};
777 avio_read(pb
, type
, 4);
778 if (strcmp(type
, "qt "))
780 av_log(c
->fc
, AV_LOG_DEBUG
, "ISO: File Type Major Brand: %.4s\n",(char *)&type
);
781 av_dict_set(&c
->fc
->metadata
, "major_brand", type
, 0);
782 minor_ver
= avio_rb32(pb
); /* minor version */
783 snprintf(minor_ver_str
, sizeof(minor_ver_str
), "%"PRIu32
"", minor_ver
);
784 av_dict_set(&c
->fc
->metadata
, "minor_version", minor_ver_str
, 0);
786 comp_brand_size
= atom
.size
- 8;
787 if (comp_brand_size
< 0)
788 return AVERROR_INVALIDDATA
;
789 comp_brands_str
= av_malloc(comp_brand_size
+ 1); /* Add null terminator */
790 if (!comp_brands_str
)
791 return AVERROR(ENOMEM
);
792 avio_read(pb
, comp_brands_str
, comp_brand_size
);
793 comp_brands_str
[comp_brand_size
] = 0;
794 av_dict_set(&c
->fc
->metadata
, "compatible_brands", comp_brands_str
, 0);
795 av_freep(&comp_brands_str
);
800 /* this atom should contain all header atoms */
801 static int mov_read_moov(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
805 if ((ret
= mov_read_default(c
, pb
, atom
)) < 0)
807 /* we parsed the 'moov' atom, we can terminate the parsing as soon as we find the 'mdat' */
808 /* so we don't parse the whole file if over a network */
810 return 0; /* now go for mdat */
813 static int mov_read_moof(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
815 c
->fragment
.moof_offset
= c
->fragment
.implicit_offset
= avio_tell(pb
) - 8;
816 av_log(c
->fc
, AV_LOG_TRACE
, "moof offset %"PRIx64
"\n", c
->fragment
.moof_offset
);
817 return mov_read_default(c
, pb
, atom
);
820 static void mov_metadata_creation_time(AVDictionary
**metadata
, time_t time
)
824 struct tm
*ptm
, tmbuf
;
825 time
-= 2082844800; /* seconds between 1904-01-01 and Epoch */
826 ptm
= gmtime_r(&time
, &tmbuf
);
828 if (strftime(buffer
, sizeof(buffer
), "%Y-%m-%d %H:%M:%S", ptm
))
829 av_dict_set(metadata
, "creation_time", buffer
, 0);
833 static int mov_read_mdhd(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
836 MOVStreamContext
*sc
;
838 char language
[4] = {0};
840 time_t creation_time
;
842 if (c
->fc
->nb_streams
< 1)
844 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
847 if (sc
->time_scale
) {
848 av_log(c
->fc
, AV_LOG_ERROR
, "Multiple mdhd?\n");
849 return AVERROR_INVALIDDATA
;
852 version
= avio_r8(pb
);
854 avpriv_request_sample(c
->fc
, "Version %d", version
);
855 return AVERROR_PATCHWELCOME
;
857 avio_rb24(pb
); /* flags */
859 creation_time
= avio_rb64(pb
);
862 creation_time
= avio_rb32(pb
);
863 avio_rb32(pb
); /* modification time */
865 mov_metadata_creation_time(&st
->metadata
, creation_time
);
867 sc
->time_scale
= avio_rb32(pb
);
868 st
->duration
= (version
== 1) ?
avio_rb64(pb
) : avio_rb32(pb
); /* duration */
870 lang
= avio_rb16(pb
); /* language */
871 if (ff_mov_lang_to_iso639(lang
, language
))
872 av_dict_set(&st
->metadata
, "language", language
, 0);
873 avio_rb16(pb
); /* quality */
878 static int mov_read_mvhd(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
880 time_t creation_time
;
881 int version
= avio_r8(pb
); /* version */
882 avio_rb24(pb
); /* flags */
885 creation_time
= avio_rb64(pb
);
888 creation_time
= avio_rb32(pb
);
889 avio_rb32(pb
); /* modification time */
891 mov_metadata_creation_time(&c
->fc
->metadata
, creation_time
);
892 c
->time_scale
= avio_rb32(pb
); /* time scale */
894 av_log(c
->fc
, AV_LOG_TRACE
, "time scale = %i\n", c
->time_scale
);
896 c
->duration
= (version
== 1) ?
avio_rb64(pb
) : avio_rb32(pb
); /* duration */
897 avio_rb32(pb
); /* preferred scale */
899 avio_rb16(pb
); /* preferred volume */
901 avio_skip(pb
, 10); /* reserved */
903 avio_skip(pb
, 36); /* display matrix */
905 avio_rb32(pb
); /* preview time */
906 avio_rb32(pb
); /* preview duration */
907 avio_rb32(pb
); /* poster time */
908 avio_rb32(pb
); /* selection time */
909 avio_rb32(pb
); /* selection duration */
910 avio_rb32(pb
); /* current time */
911 avio_rb32(pb
); /* next track ID */
916 static int mov_read_smi(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
920 if (c
->fc
->nb_streams
< 1)
922 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
924 if ((uint64_t)atom
.size
> (1<<30))
925 return AVERROR_INVALIDDATA
;
927 // currently SVQ3 decoder expect full STSD header - so let's fake it
928 // this should be fixed and just SMI header should be passed
929 av_free(st
->codec
->extradata
);
930 st
->codec
->extradata
= av_mallocz(atom
.size
+ 0x5a + FF_INPUT_BUFFER_PADDING_SIZE
);
931 if (!st
->codec
->extradata
)
932 return AVERROR(ENOMEM
);
933 st
->codec
->extradata_size
= 0x5a + atom
.size
;
934 memcpy(st
->codec
->extradata
, "SVQ3", 4); // fake
935 avio_read(pb
, st
->codec
->extradata
+ 0x5a, atom
.size
);
936 av_log(c
->fc
, AV_LOG_TRACE
, "Reading SMI %"PRId64
" %s\n", atom
.size
, st
->codec
->extradata
+ 0x5a);
940 static int mov_read_enda(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
945 if (c
->fc
->nb_streams
< 1)
947 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
949 little_endian
= !!avio_rb16(pb
);
950 av_log(c
->fc
, AV_LOG_TRACE
, "enda %d\n", little_endian
);
951 if (little_endian
== 1) {
952 switch (st
->codec
->codec_id
) {
953 case AV_CODEC_ID_PCM_S24BE
:
954 st
->codec
->codec_id
= AV_CODEC_ID_PCM_S24LE
;
956 case AV_CODEC_ID_PCM_S32BE
:
957 st
->codec
->codec_id
= AV_CODEC_ID_PCM_S32LE
;
959 case AV_CODEC_ID_PCM_F32BE
:
960 st
->codec
->codec_id
= AV_CODEC_ID_PCM_F32LE
;
962 case AV_CODEC_ID_PCM_F64BE
:
963 st
->codec
->codec_id
= AV_CODEC_ID_PCM_F64LE
;
972 static int mov_read_colr(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
975 char color_parameter_type
[5] = { 0 };
976 int color_primaries
, color_trc
, color_matrix
;
978 if (c
->fc
->nb_streams
< 1)
980 st
= c
->fc
->streams
[c
->fc
->nb_streams
- 1];
982 avio_read(pb
, color_parameter_type
, 4);
983 if (strncmp(color_parameter_type
, "nclx", 4) &&
984 strncmp(color_parameter_type
, "nclc", 4)) {
985 av_log(c
->fc
, AV_LOG_WARNING
, "unsupported color_parameter_type %s\n",
986 color_parameter_type
);
990 color_primaries
= avio_rb16(pb
);
991 color_trc
= avio_rb16(pb
);
992 color_matrix
= avio_rb16(pb
);
994 av_log(c
->fc
, AV_LOG_TRACE
,
995 "%s: pri %"PRIu16
" trc %"PRIu16
" matrix %"PRIu16
"",
996 color_parameter_type
, color_primaries
, color_trc
, color_matrix
);
998 if (!strncmp(color_parameter_type
, "nclx", 4)) {
999 uint8_t color_range
= avio_r8(pb
) >> 7;
1000 av_log(c
->fc
, AV_LOG_TRACE
, " full %"PRIu8
"", color_range
);
1002 st
->codec
->color_range
= AVCOL_RANGE_JPEG
;
1004 st
->codec
->color_range
= AVCOL_RANGE_MPEG
;
1005 /* 14496-12 references JPEG XR specs (rather than the more complete
1006 * 23001-8) so some adjusting is required */
1007 if (color_primaries
>= AVCOL_PRI_FILM
)
1008 color_primaries
= AVCOL_PRI_UNSPECIFIED
;
1009 if ((color_trc
>= AVCOL_TRC_LINEAR
&&
1010 color_trc
<= AVCOL_TRC_LOG_SQRT
) ||
1011 color_trc
>= AVCOL_TRC_BT2020_10
)
1012 color_trc
= AVCOL_TRC_UNSPECIFIED
;
1013 if (color_matrix
>= AVCOL_SPC_BT2020_NCL
)
1014 color_matrix
= AVCOL_SPC_UNSPECIFIED
;
1015 st
->codec
->color_primaries
= color_primaries
;
1016 st
->codec
->color_trc
= color_trc
;
1017 st
->codec
->colorspace
= color_matrix
;
1018 } else if (!strncmp(color_parameter_type
, "nclc", 4)) {
1019 /* color primaries, Table 4-4 */
1020 switch (color_primaries
) {
1021 case 1: st
->codec
->color_primaries
= AVCOL_PRI_BT709
; break;
1022 case 5: st
->codec
->color_primaries
= AVCOL_PRI_SMPTE170M
; break;
1023 case 6: st
->codec
->color_primaries
= AVCOL_PRI_SMPTE240M
; break;
1025 /* color transfer, Table 4-5 */
1026 switch (color_trc
) {
1027 case 1: st
->codec
->color_trc
= AVCOL_TRC_BT709
; break;
1028 case 7: st
->codec
->color_trc
= AVCOL_TRC_SMPTE240M
; break;
1030 /* color matrix, Table 4-6 */
1031 switch (color_matrix
) {
1032 case 1: st
->codec
->colorspace
= AVCOL_SPC_BT709
; break;
1033 case 6: st
->codec
->colorspace
= AVCOL_SPC_BT470BG
; break;
1034 case 7: st
->codec
->colorspace
= AVCOL_SPC_SMPTE240M
; break;
1037 av_log(c
->fc
, AV_LOG_TRACE
, "\n");
1042 static int mov_read_fiel(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
1045 unsigned mov_field_order
;
1046 enum AVFieldOrder decoded_field_order
= AV_FIELD_UNKNOWN
;
1048 if (c
->fc
->nb_streams
< 1) // will happen with jp2 files
1050 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
1052 return AVERROR_INVALIDDATA
;
1053 mov_field_order
= avio_rb16(pb
);
1054 if ((mov_field_order
& 0xFF00) == 0x0100)
1055 decoded_field_order
= AV_FIELD_PROGRESSIVE
;
1056 else if ((mov_field_order
& 0xFF00) == 0x0200) {
1057 switch (mov_field_order
& 0xFF) {
1058 case 0x01: decoded_field_order
= AV_FIELD_TT
;
1060 case 0x06: decoded_field_order
= AV_FIELD_BB
;
1062 case 0x09: decoded_field_order
= AV_FIELD_TB
;
1064 case 0x0E: decoded_field_order
= AV_FIELD_BT
;
1068 if (decoded_field_order
== AV_FIELD_UNKNOWN
&& mov_field_order
) {
1069 av_log(NULL
, AV_LOG_ERROR
, "Unknown MOV field order 0x%04x\n", mov_field_order
);
1071 st
->codec
->field_order
= decoded_field_order
;
1076 /* FIXME modify qdm2/svq3/h264 decoders to take full atom as extradata */
1077 static int mov_read_extradata(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
1084 if (c
->fc
->nb_streams
< 1) // will happen with jp2 files
1086 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
1087 size
= (uint64_t)st
->codec
->extradata_size
+ atom
.size
+ 8 + FF_INPUT_BUFFER_PADDING_SIZE
;
1088 if (size
> INT_MAX
|| (uint64_t)atom
.size
> INT_MAX
)
1089 return AVERROR_INVALIDDATA
;
1090 if ((err
= av_reallocp(&st
->codec
->extradata
, size
)) < 0) {
1091 st
->codec
->extradata_size
= 0;
1094 buf
= st
->codec
->extradata
+ st
->codec
->extradata_size
;
1095 st
->codec
->extradata_size
= size
- FF_INPUT_BUFFER_PADDING_SIZE
;
1096 AV_WB32( buf
, atom
.size
+ 8);
1097 AV_WL32( buf
+ 4, atom
.type
);
1098 avio_read(pb
, buf
+ 8, atom
.size
);
1102 static int mov_read_wave(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
1106 if (c
->fc
->nb_streams
< 1)
1108 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
1110 if ((uint64_t)atom
.size
> (1<<30))
1111 return AVERROR_INVALIDDATA
;
1113 if (st
->codec
->codec_id
== AV_CODEC_ID_QDM2
|| st
->codec
->codec_id
== AV_CODEC_ID_QDMC
) {
1114 // pass all frma atom to codec, needed at least for QDMC and QDM2
1115 av_free(st
->codec
->extradata
);
1116 st
->codec
->extradata
= av_mallocz(atom
.size
+ FF_INPUT_BUFFER_PADDING_SIZE
);
1117 if (!st
->codec
->extradata
)
1118 return AVERROR(ENOMEM
);
1119 st
->codec
->extradata_size
= atom
.size
;
1120 avio_read(pb
, st
->codec
->extradata
, atom
.size
);
1121 } else if (atom
.size
> 8) { /* to read frma, esds atoms */
1123 if ((ret
= mov_read_default(c
, pb
, atom
)) < 0)
1126 avio_skip(pb
, atom
.size
);
1131 * This function reads atom content and puts data in extradata without tag
1132 * nor size unlike mov_read_extradata.
1134 static int mov_read_glbl(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
1138 if (c
->fc
->nb_streams
< 1)
1140 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
1142 if ((uint64_t)atom
.size
> (1<<30))
1143 return AVERROR_INVALIDDATA
;
1145 if (atom
.size
>= 10) {
1146 // Broken files created by legacy versions of libavformat will
1147 // wrap a whole fiel atom inside of a glbl atom.
1148 unsigned size
= avio_rb32(pb
);
1149 unsigned type
= avio_rl32(pb
);
1150 avio_seek(pb
, -8, SEEK_CUR
);
1151 if (type
== MKTAG('f','i','e','l') && size
== atom
.size
)
1152 return mov_read_default(c
, pb
, atom
);
1154 av_free(st
->codec
->extradata
);
1155 st
->codec
->extradata
= av_mallocz(atom
.size
+ FF_INPUT_BUFFER_PADDING_SIZE
);
1156 if (!st
->codec
->extradata
)
1157 return AVERROR(ENOMEM
);
1158 st
->codec
->extradata_size
= atom
.size
;
1159 avio_read(pb
, st
->codec
->extradata
, atom
.size
);
1163 static int mov_read_dvc1(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
1166 uint8_t profile_level
;
1168 if (c
->fc
->nb_streams
< 1)
1170 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
1172 if (atom
.size
>= (1<<28) || atom
.size
< 7)
1173 return AVERROR_INVALIDDATA
;
1175 profile_level
= avio_r8(pb
);
1176 if ((profile_level
& 0xf0) != 0xc0)
1179 av_free(st
->codec
->extradata
);
1180 st
->codec
->extradata
= av_mallocz(atom
.size
- 7 + FF_INPUT_BUFFER_PADDING_SIZE
);
1181 if (!st
->codec
->extradata
)
1182 return AVERROR(ENOMEM
);
1183 st
->codec
->extradata_size
= atom
.size
- 7;
1184 avio_seek(pb
, 6, SEEK_CUR
);
1185 avio_read(pb
, st
->codec
->extradata
, st
->codec
->extradata_size
);
1190 * An strf atom is a BITMAPINFOHEADER struct. This struct is 40 bytes itself,
1191 * but can have extradata appended at the end after the 40 bytes belonging
1194 static int mov_read_strf(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
1198 if (c
->fc
->nb_streams
< 1)
1200 if (atom
.size
<= 40)
1202 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
1204 if ((uint64_t)atom
.size
> (1<<30))
1205 return AVERROR_INVALIDDATA
;
1207 av_free(st
->codec
->extradata
);
1208 st
->codec
->extradata
= av_mallocz(atom
.size
- 40 + FF_INPUT_BUFFER_PADDING_SIZE
);
1209 if (!st
->codec
->extradata
)
1210 return AVERROR(ENOMEM
);
1211 st
->codec
->extradata_size
= atom
.size
- 40;
1213 avio_read(pb
, st
->codec
->extradata
, atom
.size
- 40);
1217 static int mov_read_stco(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
1220 MOVStreamContext
*sc
;
1221 unsigned int i
, entries
;
1223 if (c
->fc
->nb_streams
< 1)
1225 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
1228 avio_r8(pb
); /* version */
1229 avio_rb24(pb
); /* flags */
1231 entries
= avio_rb32(pb
);
1235 if (entries
>= UINT_MAX
/sizeof(int64_t))
1236 return AVERROR_INVALIDDATA
;
1238 sc
->chunk_offsets
= av_malloc(entries
* sizeof(int64_t));
1239 if (!sc
->chunk_offsets
)
1240 return AVERROR(ENOMEM
);
1241 sc
->chunk_count
= entries
;
1243 if (atom
.type
== MKTAG('s','t','c','o'))
1244 for (i
= 0; i
< entries
&& !pb
->eof_reached
; i
++)
1245 sc
->chunk_offsets
[i
] = avio_rb32(pb
);
1246 else if (atom
.type
== MKTAG('c','o','6','4'))
1247 for (i
= 0; i
< entries
&& !pb
->eof_reached
; i
++)
1248 sc
->chunk_offsets
[i
] = avio_rb64(pb
);
1250 return AVERROR_INVALIDDATA
;
1252 sc
->chunk_count
= i
;
1254 if (pb
->eof_reached
)
1261 * Compute codec id for 'lpcm' tag.
1262 * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
1264 enum AVCodecID
ff_mov_get_lpcm_codec_id(int bps
, int flags
)
1271 return ff_get_pcm_codec_id(bps
, flags
& 1, flags
& 2, flags
& 4 ?
-1 : 0);
1274 static int mov_codec_id(AVStream
*st
, uint32_t format
)
1276 int id
= ff_codec_get_id(ff_codec_movaudio_tags
, format
);
1279 ((format
& 0xFFFF) == 'm' + ('s' << 8) ||
1280 (format
& 0xFFFF) == 'T' + ('S' << 8)))
1281 id
= ff_codec_get_id(ff_codec_wav_tags
, av_bswap32(format
) & 0xFFFF);
1283 if (st
->codec
->codec_type
!= AVMEDIA_TYPE_VIDEO
&& id
> 0) {
1284 st
->codec
->codec_type
= AVMEDIA_TYPE_AUDIO
;
1285 } else if (st
->codec
->codec_type
!= AVMEDIA_TYPE_AUDIO
&&
1286 /* skip old asf mpeg4 tag */
1287 format
&& format
!= MKTAG('m','p','4','s')) {
1288 id
= ff_codec_get_id(ff_codec_movvideo_tags
, format
);
1290 id
= ff_codec_get_id(ff_codec_bmp_tags
, format
);
1292 st
->codec
->codec_type
= AVMEDIA_TYPE_VIDEO
;
1293 else if (st
->codec
->codec_type
== AVMEDIA_TYPE_DATA
) {
1294 id
= ff_codec_get_id(ff_codec_movsubtitle_tags
, format
);
1296 st
->codec
->codec_type
= AVMEDIA_TYPE_SUBTITLE
;
1300 st
->codec
->codec_tag
= format
;
1305 static void mov_parse_stsd_video(MOVContext
*c
, AVIOContext
*pb
,
1306 AVStream
*st
, MOVStreamContext
*sc
)
1308 uint8_t codec_name
[32];
1309 unsigned int color_depth
, len
, j
;
1310 int color_greyscale
;
1313 avio_rb16(pb
); /* version */
1314 avio_rb16(pb
); /* revision level */
1315 avio_rb32(pb
); /* vendor */
1316 avio_rb32(pb
); /* temporal quality */
1317 avio_rb32(pb
); /* spatial quality */
1319 st
->codec
->width
= avio_rb16(pb
); /* width */
1320 st
->codec
->height
= avio_rb16(pb
); /* height */
1322 avio_rb32(pb
); /* horiz resolution */
1323 avio_rb32(pb
); /* vert resolution */
1324 avio_rb32(pb
); /* data size, always 0 */
1325 avio_rb16(pb
); /* frames per samples */
1327 len
= avio_r8(pb
); /* codec name, pascal string */
1330 mov_read_mac_string(c
, pb
, len
, codec_name
, sizeof(codec_name
));
1332 avio_skip(pb
, 31 - len
);
1335 av_dict_set(&st
->metadata
, "encoder", codec_name
, 0);
1337 /* codec_tag YV12 triggers an UV swap in rawdec.c */
1338 if (!memcmp(codec_name
, "Planar Y'CbCr 8-bit 4:2:0", 25))
1339 st
->codec
->codec_tag
= MKTAG('I', '4', '2', '0');
1340 /* Flash Media Server uses tag H263 with Sorenson Spark */
1341 if (st
->codec
->codec_tag
== MKTAG('H','2','6','3') &&
1342 !memcmp(codec_name
, "Sorenson H263", 13))
1343 st
->codec
->codec_id
= AV_CODEC_ID_FLV1
;
1345 st
->codec
->bits_per_coded_sample
= avio_rb16(pb
); /* depth */
1346 color_table_id
= avio_rb16(pb
); /* colortable id */
1347 av_log(c
->fc
, AV_LOG_TRACE
, "depth %d, ctab id %d\n",
1348 st
->codec
->bits_per_coded_sample
, color_table_id
);
1349 /* figure out the palette situation */
1350 color_depth
= st
->codec
->bits_per_coded_sample
& 0x1F;
1351 color_greyscale
= st
->codec
->bits_per_coded_sample
& 0x20;
1353 /* if the depth is 2, 4, or 8 bpp, file is palettized */
1354 if ((color_depth
== 2) || (color_depth
== 4) || (color_depth
== 8)) {
1355 /* for palette traversal */
1356 unsigned int color_start
, color_count
, color_end
;
1357 unsigned char r
, g
, b
;
1359 if (color_greyscale
) {
1360 int color_index
, color_dec
;
1361 /* compute the greyscale palette */
1362 st
->codec
->bits_per_coded_sample
= color_depth
;
1363 color_count
= 1 << color_depth
;
1365 color_dec
= 256 / (color_count
- 1);
1366 for (j
= 0; j
< color_count
; j
++) {
1367 r
= g
= b
= color_index
;
1368 sc
->palette
[j
] = (r
<< 16) | (g
<< 8) | (b
);
1369 color_index
-= color_dec
;
1370 if (color_index
< 0)
1373 } else if (color_table_id
) {
1374 const uint8_t *color_table
;
1375 /* if flag bit 3 is set, use the default palette */
1376 color_count
= 1 << color_depth
;
1377 if (color_depth
== 2)
1378 color_table
= ff_qt_default_palette_4
;
1379 else if (color_depth
== 4)
1380 color_table
= ff_qt_default_palette_16
;
1382 color_table
= ff_qt_default_palette_256
;
1384 for (j
= 0; j
< color_count
; j
++) {
1385 r
= color_table
[j
* 3 + 0];
1386 g
= color_table
[j
* 3 + 1];
1387 b
= color_table
[j
* 3 + 2];
1388 sc
->palette
[j
] = (r
<< 16) | (g
<< 8) | (b
);
1391 /* load the palette from the file */
1392 color_start
= avio_rb32(pb
);
1393 color_count
= avio_rb16(pb
);
1394 color_end
= avio_rb16(pb
);
1395 if ((color_start
<= 255) && (color_end
<= 255)) {
1396 for (j
= color_start
; j
<= color_end
; j
++) {
1397 /* each R, G, or B component is 16 bits;
1398 * only use the top 8 bits; skip alpha bytes
1408 sc
->palette
[j
] = (r
<< 16) | (g
<< 8) | (b
);
1412 sc
->has_palette
= 1;
1416 static void mov_parse_stsd_audio(MOVContext
*c
, AVIOContext
*pb
,
1417 AVStream
*st
, MOVStreamContext
*sc
)
1419 int bits_per_sample
, flags
;
1420 uint16_t version
= avio_rb16(pb
);
1422 avio_rb16(pb
); /* revision level */
1423 avio_rb32(pb
); /* vendor */
1425 st
->codec
->channels
= avio_rb16(pb
); /* channel count */
1426 st
->codec
->bits_per_coded_sample
= avio_rb16(pb
); /* sample size */
1427 av_log(c
->fc
, AV_LOG_TRACE
, "audio channels %d\n", st
->codec
->channels
);
1429 sc
->audio_cid
= avio_rb16(pb
);
1430 avio_rb16(pb
); /* packet size = 0 */
1432 st
->codec
->sample_rate
= ((avio_rb32(pb
) >> 16));
1434 // Read QT version 1 fields. In version 0 these do not exist.
1435 av_log(c
->fc
, AV_LOG_TRACE
, "version =%d, isom =%d\n", version
, c
->isom
);
1438 sc
->samples_per_frame
= avio_rb32(pb
);
1439 avio_rb32(pb
); /* bytes per packet */
1440 sc
->bytes_per_frame
= avio_rb32(pb
);
1441 avio_rb32(pb
); /* bytes per sample */
1442 } else if (version
== 2) {
1443 avio_rb32(pb
); /* sizeof struct only */
1444 st
->codec
->sample_rate
= av_int2double(avio_rb64(pb
));
1445 st
->codec
->channels
= avio_rb32(pb
);
1446 avio_rb32(pb
); /* always 0x7F000000 */
1447 st
->codec
->bits_per_coded_sample
= avio_rb32(pb
);
1449 flags
= avio_rb32(pb
); /* lpcm format specific flag */
1450 sc
->bytes_per_frame
= avio_rb32(pb
);
1451 sc
->samples_per_frame
= avio_rb32(pb
);
1452 if (st
->codec
->codec_tag
== MKTAG('l','p','c','m'))
1453 st
->codec
->codec_id
=
1454 ff_mov_get_lpcm_codec_id(st
->codec
->bits_per_coded_sample
,
1459 switch (st
->codec
->codec_id
) {
1460 case AV_CODEC_ID_PCM_S8
:
1461 case AV_CODEC_ID_PCM_U8
:
1462 if (st
->codec
->bits_per_coded_sample
== 16)
1463 st
->codec
->codec_id
= AV_CODEC_ID_PCM_S16BE
;
1465 case AV_CODEC_ID_PCM_S16LE
:
1466 case AV_CODEC_ID_PCM_S16BE
:
1467 if (st
->codec
->bits_per_coded_sample
== 8)
1468 st
->codec
->codec_id
= AV_CODEC_ID_PCM_S8
;
1469 else if (st
->codec
->bits_per_coded_sample
== 24)
1470 st
->codec
->codec_id
=
1471 st
->codec
->codec_id
== AV_CODEC_ID_PCM_S16BE ?
1472 AV_CODEC_ID_PCM_S24BE
: AV_CODEC_ID_PCM_S24LE
;
1474 /* set values for old format before stsd version 1 appeared */
1475 case AV_CODEC_ID_MACE3
:
1476 sc
->samples_per_frame
= 6;
1477 sc
->bytes_per_frame
= 2 * st
->codec
->channels
;
1479 case AV_CODEC_ID_MACE6
:
1480 sc
->samples_per_frame
= 6;
1481 sc
->bytes_per_frame
= 1 * st
->codec
->channels
;
1483 case AV_CODEC_ID_ADPCM_IMA_QT
:
1484 sc
->samples_per_frame
= 64;
1485 sc
->bytes_per_frame
= 34 * st
->codec
->channels
;
1487 case AV_CODEC_ID_GSM
:
1488 sc
->samples_per_frame
= 160;
1489 sc
->bytes_per_frame
= 33;
1495 bits_per_sample
= av_get_bits_per_sample(st
->codec
->codec_id
);
1496 if (bits_per_sample
) {
1497 st
->codec
->bits_per_coded_sample
= bits_per_sample
;
1498 sc
->sample_size
= (bits_per_sample
>> 3) * st
->codec
->channels
;
1502 static void mov_parse_stsd_subtitle(MOVContext
*c
, AVIOContext
*pb
,
1503 AVStream
*st
, MOVStreamContext
*sc
,
1506 // ttxt stsd contains display flags, justification, background
1507 // color, fonts, and default styles, so fake an atom to read it
1508 MOVAtom fake_atom
= { .size
= size
};
1509 // mp4s contains a regular esds atom
1510 if (st
->codec
->codec_tag
!= AV_RL32("mp4s"))
1511 mov_read_glbl(c
, pb
, fake_atom
);
1512 st
->codec
->width
= sc
->width
;
1513 st
->codec
->height
= sc
->height
;
1516 static uint32_t yuv_to_rgba(uint32_t ycbcr
)
1521 y
= (ycbcr
>> 16) & 0xFF;
1522 cr
= (ycbcr
>> 8) & 0xFF;
1525 b
= av_clip_uint8(1.164 * (y
- 16) + 2.018 * (cb
- 128));
1526 g
= av_clip_uint8(1.164 * (y
- 16) - 0.813 * (cr
- 128) - 0.391 * (cb
- 128));
1527 r
= av_clip_uint8(1.164 * (y
- 16) + 1.596 * (cr
- 128));
1529 return (r
<< 16) | (g
<< 8) | b
;
1532 static int mov_rewrite_dvd_sub_extradata(AVStream
*st
)
1534 char buf
[256] = {0};
1535 uint8_t *src
= st
->codec
->extradata
;
1538 if (st
->codec
->extradata_size
!= 64)
1541 if (st
->codec
->width
> 0 && st
->codec
->height
> 0)
1542 snprintf(buf
, sizeof(buf
), "size: %dx%d\n",
1543 st
->codec
->width
, st
->codec
->height
);
1544 av_strlcat(buf
, "palette: ", sizeof(buf
));
1546 for (i
= 0; i
< 16; i
++) {
1547 uint32_t yuv
= AV_RB32(src
+ i
* 4);
1548 uint32_t rgba
= yuv_to_rgba(yuv
);
1550 av_strlcatf(buf
, sizeof(buf
), "%06"PRIx32
"%s", rgba
, i
!= 15 ?
", " : "");
1553 if (av_strlcat(buf
, "\n", sizeof(buf
)) >= sizeof(buf
))
1556 av_freep(&st
->codec
->extradata
);
1557 st
->codec
->extradata_size
= 0;
1558 st
->codec
->extradata
= av_mallocz(strlen(buf
) + FF_INPUT_BUFFER_PADDING_SIZE
);
1559 if (!st
->codec
->extradata
)
1560 return AVERROR(ENOMEM
);
1561 st
->codec
->extradata_size
= strlen(buf
);
1562 memcpy(st
->codec
->extradata
, buf
, st
->codec
->extradata_size
);
1567 static int mov_parse_stsd_data(MOVContext
*c
, AVIOContext
*pb
,
1568 AVStream
*st
, MOVStreamContext
*sc
,
1571 if (st
->codec
->codec_tag
== MKTAG('t','m','c','d')) {
1572 st
->codec
->extradata_size
= size
;
1573 st
->codec
->extradata
= av_malloc(size
+ FF_INPUT_BUFFER_PADDING_SIZE
);
1574 if (!st
->codec
->extradata
)
1575 return AVERROR(ENOMEM
);
1576 avio_read(pb
, st
->codec
->extradata
, size
);
1578 /* other codec type, just skip (rtp, mp4s ...) */
1579 avio_skip(pb
, size
);
1584 static int mov_finalize_stsd_codec(MOVContext
*c
, AVIOContext
*pb
,
1585 AVStream
*st
, MOVStreamContext
*sc
)
1587 if (st
->codec
->codec_type
== AVMEDIA_TYPE_AUDIO
&&
1588 !st
->codec
->sample_rate
&& sc
->time_scale
> 1)
1589 st
->codec
->sample_rate
= sc
->time_scale
;
1591 /* special codec parameters handling */
1592 switch (st
->codec
->codec_id
) {
1593 #if CONFIG_DV_DEMUXER
1594 case AV_CODEC_ID_DVAUDIO
:
1595 c
->dv_fctx
= avformat_alloc_context();
1596 c
->dv_demux
= avpriv_dv_init_demux(c
->dv_fctx
);
1598 av_log(c
->fc
, AV_LOG_ERROR
, "dv demux context init error\n");
1599 return AVERROR(ENOMEM
);
1601 sc
->dv_audio_container
= 1;
1602 st
->codec
->codec_id
= AV_CODEC_ID_PCM_S16LE
;
1605 /* no ifdef since parameters are always those */
1606 case AV_CODEC_ID_QCELP
:
1607 st
->codec
->channels
= 1;
1608 // force sample rate for qcelp when not stored in mov
1609 if (st
->codec
->codec_tag
!= MKTAG('Q','c','l','p'))
1610 st
->codec
->sample_rate
= 8000;
1612 case AV_CODEC_ID_AMR_NB
:
1613 st
->codec
->channels
= 1;
1614 /* force sample rate for amr, stsd in 3gp does not store sample rate */
1615 st
->codec
->sample_rate
= 8000;
1617 case AV_CODEC_ID_AMR_WB
:
1618 st
->codec
->channels
= 1;
1619 st
->codec
->sample_rate
= 16000;
1621 case AV_CODEC_ID_MP2
:
1622 case AV_CODEC_ID_MP3
:
1623 /* force type after stsd for m1a hdlr */
1624 st
->codec
->codec_type
= AVMEDIA_TYPE_AUDIO
;
1625 st
->need_parsing
= AVSTREAM_PARSE_FULL
;
1627 case AV_CODEC_ID_GSM
:
1628 case AV_CODEC_ID_ADPCM_MS
:
1629 case AV_CODEC_ID_ADPCM_IMA_WAV
:
1630 case AV_CODEC_ID_ILBC
:
1631 st
->codec
->block_align
= sc
->bytes_per_frame
;
1633 case AV_CODEC_ID_ALAC
:
1634 if (st
->codec
->extradata_size
== 36) {
1635 st
->codec
->channels
= AV_RB8 (st
->codec
->extradata
+ 21);
1636 st
->codec
->sample_rate
= AV_RB32(st
->codec
->extradata
+ 32);
1639 case AV_CODEC_ID_VC1
:
1640 st
->need_parsing
= AVSTREAM_PARSE_FULL
;
1648 static int mov_skip_multiple_stsd(MOVContext
*c
, AVIOContext
*pb
,
1649 int codec_tag
, int format
,
1652 int video_codec_id
= ff_codec_get_id(ff_codec_movvideo_tags
, format
);
1655 (codec_tag
== AV_RL32("avc1") ||
1656 codec_tag
== AV_RL32("hvc1") ||
1657 codec_tag
== AV_RL32("hev1") ||
1658 (codec_tag
!= format
&&
1659 (c
->fc
->video_codec_id ? video_codec_id
!= c
->fc
->video_codec_id
1660 : codec_tag
!= MKTAG('j','p','e','g'))))) {
1661 /* Multiple fourcc, we skip JPEG. This is not correct, we should
1662 * export it as a separate AVStream but this needs a few changes
1663 * in the MOV demuxer, patch welcome. */
1665 av_log(c
->fc
, AV_LOG_WARNING
, "multiple fourcc not supported\n");
1666 avio_skip(pb
, size
);
1673 int ff_mov_read_stsd_entries(MOVContext
*c
, AVIOContext
*pb
, int entries
)
1676 MOVStreamContext
*sc
;
1677 int pseudo_stream_id
;
1679 if (c
->fc
->nb_streams
< 1)
1681 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
1684 for (pseudo_stream_id
= 0;
1685 pseudo_stream_id
< entries
&& !pb
->eof_reached
;
1686 pseudo_stream_id
++) {
1687 //Parsing Sample description table
1689 int ret
, dref_id
= 1;
1690 MOVAtom a
= { AV_RL32("stsd") };
1691 int64_t start_pos
= avio_tell(pb
);
1692 uint32_t size
= avio_rb32(pb
); /* size */
1693 uint32_t format
= avio_rl32(pb
); /* data format */
1696 avio_rb32(pb
); /* reserved */
1697 avio_rb16(pb
); /* reserved */
1698 dref_id
= avio_rb16(pb
);
1700 av_log(c
->fc
, AV_LOG_ERROR
, "invalid size %"PRIu32
" in stsd\n", size
);
1701 return AVERROR_INVALIDDATA
;
1704 if (mov_skip_multiple_stsd(c
, pb
, st
->codec
->codec_tag
, format
,
1705 size
- (avio_tell(pb
) - start_pos
)))
1708 sc
->pseudo_stream_id
= st
->codec
->codec_tag ?
-1 : pseudo_stream_id
;
1709 sc
->dref_id
= dref_id
;
1711 id
= mov_codec_id(st
, format
);
1713 av_log(c
->fc
, AV_LOG_TRACE
, "size=%"PRIu32
" 4CC= %"PRIu8
"%"PRIu8
"%"PRIu8
"%"PRIu8
" codec_type=%d\n", size
,
1714 (format
>> 0) & 0xff, (format
>> 8) & 0xff, (format
>> 16) & 0xff,
1715 (format
>> 24) & 0xff, st
->codec
->codec_type
);
1717 if (st
->codec
->codec_type
==AVMEDIA_TYPE_VIDEO
) {
1718 st
->codec
->codec_id
= id
;
1719 mov_parse_stsd_video(c
, pb
, st
, sc
);
1720 } else if (st
->codec
->codec_type
==AVMEDIA_TYPE_AUDIO
) {
1721 st
->codec
->codec_id
= id
;
1722 mov_parse_stsd_audio(c
, pb
, st
, sc
);
1723 } else if (st
->codec
->codec_type
==AVMEDIA_TYPE_SUBTITLE
){
1724 st
->codec
->codec_id
= id
;
1725 mov_parse_stsd_subtitle(c
, pb
, st
, sc
,
1726 size
- (avio_tell(pb
) - start_pos
));
1728 ret
= mov_parse_stsd_data(c
, pb
, st
, sc
,
1729 size
- (avio_tell(pb
) - start_pos
));
1733 /* this will read extra atoms at the end (wave, alac, damr, avcC, hvcC, SMI ...) */
1734 a
.size
= size
- (avio_tell(pb
) - start_pos
);
1736 if ((ret
= mov_read_default(c
, pb
, a
)) < 0)
1738 } else if (a
.size
> 0)
1739 avio_skip(pb
, a
.size
);
1742 if (pb
->eof_reached
)
1745 return mov_finalize_stsd_codec(c
, pb
, st
, sc
);
1748 static int mov_read_stsd(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
1752 avio_r8(pb
); /* version */
1753 avio_rb24(pb
); /* flags */
1754 entries
= avio_rb32(pb
);
1756 return ff_mov_read_stsd_entries(c
, pb
, entries
);
1759 static int mov_read_stsc(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
1762 MOVStreamContext
*sc
;
1763 unsigned int i
, entries
;
1765 if (c
->fc
->nb_streams
< 1)
1767 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
1770 avio_r8(pb
); /* version */
1771 avio_rb24(pb
); /* flags */
1773 entries
= avio_rb32(pb
);
1775 av_log(c
->fc
, AV_LOG_TRACE
, "track[%i].stsc.entries = %i\n", c
->fc
->nb_streams
-1, entries
);
1779 if (entries
>= UINT_MAX
/ sizeof(*sc
->stsc_data
))
1780 return AVERROR_INVALIDDATA
;
1781 sc
->stsc_data
= av_malloc(entries
* sizeof(*sc
->stsc_data
));
1783 return AVERROR(ENOMEM
);
1785 for (i
= 0; i
< entries
&& !pb
->eof_reached
; i
++) {
1786 sc
->stsc_data
[i
].first
= avio_rb32(pb
);
1787 sc
->stsc_data
[i
].count
= avio_rb32(pb
);
1788 sc
->stsc_data
[i
].id
= avio_rb32(pb
);
1793 if (pb
->eof_reached
)
1799 static int mov_read_stps(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
1802 MOVStreamContext
*sc
;
1803 unsigned i
, entries
;
1805 if (c
->fc
->nb_streams
< 1)
1807 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
1810 avio_rb32(pb
); // version + flags
1812 entries
= avio_rb32(pb
);
1813 if (entries
>= UINT_MAX
/ sizeof(*sc
->stps_data
))
1814 return AVERROR_INVALIDDATA
;
1815 sc
->stps_data
= av_malloc(entries
* sizeof(*sc
->stps_data
));
1817 return AVERROR(ENOMEM
);
1819 for (i
= 0; i
< entries
&& !pb
->eof_reached
; i
++) {
1820 sc
->stps_data
[i
] = avio_rb32(pb
);
1821 //av_log(c->fc, AV_LOG_TRACE, "stps %d\n", sc->stps_data[i]);
1826 if (pb
->eof_reached
)
1832 static int mov_read_stss(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
1835 MOVStreamContext
*sc
;
1836 unsigned int i
, entries
;
1838 if (c
->fc
->nb_streams
< 1)
1840 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
1843 avio_r8(pb
); /* version */
1844 avio_rb24(pb
); /* flags */
1846 entries
= avio_rb32(pb
);
1848 av_log(c
->fc
, AV_LOG_TRACE
, "keyframe_count = %d\n", entries
);
1852 sc
->keyframe_absent
= 1;
1855 if (entries
>= UINT_MAX
/ sizeof(int))
1856 return AVERROR_INVALIDDATA
;
1857 av_freep(&sc
->keyframes
);
1858 sc
->keyframes
= av_malloc(entries
* sizeof(int));
1860 return AVERROR(ENOMEM
);
1862 for (i
= 0; i
< entries
&& !pb
->eof_reached
; i
++) {
1863 sc
->keyframes
[i
] = avio_rb32(pb
);
1864 //av_log(c->fc, AV_LOG_TRACE, "keyframes[]=%d\n", sc->keyframes[i]);
1867 sc
->keyframe_count
= i
;
1869 if (pb
->eof_reached
)
1875 static int mov_read_stsz(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
1878 MOVStreamContext
*sc
;
1879 unsigned int i
, entries
, sample_size
, field_size
, num_bytes
;
1883 if (c
->fc
->nb_streams
< 1)
1885 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
1888 avio_r8(pb
); /* version */
1889 avio_rb24(pb
); /* flags */
1891 if (atom
.type
== MKTAG('s','t','s','z')) {
1892 sample_size
= avio_rb32(pb
);
1893 if (!sc
->sample_size
) /* do not overwrite value computed in stsd */
1894 sc
->sample_size
= sample_size
;
1898 avio_rb24(pb
); /* reserved */
1899 field_size
= avio_r8(pb
);
1901 entries
= avio_rb32(pb
);
1903 av_log(c
->fc
, AV_LOG_TRACE
, "sample_size = %d sample_count = %d\n", sc
->sample_size
, entries
);
1905 sc
->sample_count
= entries
;
1909 if (field_size
!= 4 && field_size
!= 8 && field_size
!= 16 && field_size
!= 32) {
1910 av_log(c
->fc
, AV_LOG_ERROR
, "Invalid sample field size %d\n", field_size
);
1911 return AVERROR_INVALIDDATA
;
1916 if (entries
>= UINT_MAX
/ sizeof(int) || entries
>= (UINT_MAX
- 4) / field_size
)
1917 return AVERROR_INVALIDDATA
;
1918 sc
->sample_sizes
= av_malloc(entries
* sizeof(int));
1919 if (!sc
->sample_sizes
)
1920 return AVERROR(ENOMEM
);
1922 num_bytes
= (entries
*field_size
+4)>>3;
1924 buf
= av_malloc(num_bytes
+FF_INPUT_BUFFER_PADDING_SIZE
);
1926 av_freep(&sc
->sample_sizes
);
1927 return AVERROR(ENOMEM
);
1930 if (avio_read(pb
, buf
, num_bytes
) < num_bytes
) {
1931 av_freep(&sc
->sample_sizes
);
1933 return AVERROR_INVALIDDATA
;
1936 init_get_bits(&gb
, buf
, 8*num_bytes
);
1938 for (i
= 0; i
< entries
&& !pb
->eof_reached
; i
++) {
1939 sc
->sample_sizes
[i
] = get_bits_long(&gb
, field_size
);
1940 sc
->data_size
+= sc
->sample_sizes
[i
];
1943 sc
->sample_count
= i
;
1947 if (pb
->eof_reached
)
1953 static int mov_read_stts(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
1956 MOVStreamContext
*sc
;
1957 unsigned int i
, entries
;
1959 int64_t total_sample_count
=0;
1961 if (c
->fc
->nb_streams
< 1)
1963 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
1966 avio_r8(pb
); /* version */
1967 avio_rb24(pb
); /* flags */
1968 entries
= avio_rb32(pb
);
1970 av_log(c
->fc
, AV_LOG_TRACE
, "track[%i].stts.entries = %i\n",
1971 c
->fc
->nb_streams
-1, entries
);
1975 if (entries
>= UINT_MAX
/ sizeof(*sc
->stts_data
))
1976 return AVERROR(EINVAL
);
1978 av_free(sc
->stts_data
);
1979 sc
->stts_data
= av_malloc(entries
* sizeof(*sc
->stts_data
));
1981 return AVERROR(ENOMEM
);
1983 for (i
= 0; i
< entries
&& !pb
->eof_reached
; i
++) {
1984 int sample_duration
;
1987 sample_count
=avio_rb32(pb
);
1988 sample_duration
= avio_rb32(pb
);
1989 if (sample_count
< 0) {
1990 av_log(c
->fc
, AV_LOG_ERROR
, "Invalid sample_count=%d\n", sample_count
);
1991 return AVERROR_INVALIDDATA
;
1993 sc
->stts_data
[i
].count
= sample_count
;
1994 sc
->stts_data
[i
].duration
= sample_duration
;
1996 av_log(c
->fc
, AV_LOG_TRACE
, "sample_count=%d, sample_duration=%d\n",
1997 sample_count
, sample_duration
);
1999 duration
+=(int64_t)sample_duration
*sample_count
;
2000 total_sample_count
+=sample_count
;
2005 if (pb
->eof_reached
)
2008 st
->nb_frames
= total_sample_count
;
2010 st
->duration
= duration
;
2011 sc
->track_end
= duration
;
2015 static int mov_read_ctts(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
2018 MOVStreamContext
*sc
;
2019 unsigned int i
, entries
;
2021 if (c
->fc
->nb_streams
< 1)
2023 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
2026 avio_r8(pb
); /* version */
2027 avio_rb24(pb
); /* flags */
2028 entries
= avio_rb32(pb
);
2030 av_log(c
->fc
, AV_LOG_TRACE
, "track[%i].ctts.entries = %i\n", c
->fc
->nb_streams
-1, entries
);
2032 av_freep(&sc
->ctts_data
);
2036 if (entries
>= UINT_MAX
/ sizeof(*sc
->ctts_data
))
2037 return AVERROR_INVALIDDATA
;
2038 sc
->ctts_data
= av_malloc(entries
* sizeof(*sc
->ctts_data
));
2040 return AVERROR(ENOMEM
);
2042 for (i
= 0; i
< entries
&& !pb
->eof_reached
; i
++) {
2043 int count
=avio_rb32(pb
);
2044 int duration
=avio_rb32(pb
);
2046 sc
->ctts_data
[i
].count
= count
;
2047 sc
->ctts_data
[i
].duration
= duration
;
2049 sc
->dts_shift
= FFMAX(sc
->dts_shift
, -duration
);
2054 if (pb
->eof_reached
)
2057 av_log(c
->fc
, AV_LOG_TRACE
, "dts shift %d\n", sc
->dts_shift
);
2062 static int mov_read_sbgp(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
2065 MOVStreamContext
*sc
;
2066 unsigned int i
, entries
;
2068 uint32_t grouping_type
;
2070 if (c
->fc
->nb_streams
< 1)
2072 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
2075 version
= avio_r8(pb
); /* version */
2076 avio_rb24(pb
); /* flags */
2077 grouping_type
= avio_rl32(pb
);
2078 if (grouping_type
!= MKTAG( 'r','a','p',' '))
2079 return 0; /* only support 'rap ' grouping */
2081 avio_rb32(pb
); /* grouping_type_parameter */
2083 entries
= avio_rb32(pb
);
2086 if (entries
>= UINT_MAX
/ sizeof(*sc
->rap_group
))
2087 return AVERROR_INVALIDDATA
;
2088 sc
->rap_group
= av_malloc(entries
* sizeof(*sc
->rap_group
));
2090 return AVERROR(ENOMEM
);
2092 for (i
= 0; i
< entries
&& !pb
->eof_reached
; i
++) {
2093 sc
->rap_group
[i
].count
= avio_rb32(pb
); /* sample_count */
2094 sc
->rap_group
[i
].index
= avio_rb32(pb
); /* group_description_index */
2097 sc
->rap_group_count
= i
;
2099 return pb
->eof_reached ? AVERROR_EOF
: 0;
2102 static void mov_build_index(MOVContext
*mov
, AVStream
*st
)
2104 MOVStreamContext
*sc
= st
->priv_data
;
2105 int64_t current_offset
;
2106 int64_t current_dts
= 0;
2107 unsigned int stts_index
= 0;
2108 unsigned int stsc_index
= 0;
2109 unsigned int stss_index
= 0;
2110 unsigned int stps_index
= 0;
2112 uint64_t stream_size
= 0;
2114 /* adjust first dts according to edit list */
2115 if (sc
->time_offset
&& mov
->time_scale
> 0) {
2116 if (sc
->time_offset
< 0)
2117 sc
->time_offset
= av_rescale(sc
->time_offset
, sc
->time_scale
, mov
->time_scale
);
2118 current_dts
= -sc
->time_offset
;
2119 if (sc
->ctts_data
&& sc
->stts_data
&& sc
->stts_data
[0].duration
&&
2120 sc
->ctts_data
[0].duration
/ sc
->stts_data
[0].duration
> 16) {
2121 /* more than 16 frames delay, dts are likely wrong
2122 this happens with files created by iMovie */
2124 st
->codec
->has_b_frames
= 1;
2128 /* only use old uncompressed audio chunk demuxing when stts specifies it */
2129 if (!(st
->codec
->codec_type
== AVMEDIA_TYPE_AUDIO
&&
2130 sc
->stts_count
== 1 && sc
->stts_data
[0].duration
== 1)) {
2131 unsigned int current_sample
= 0;
2132 unsigned int stts_sample
= 0;
2133 unsigned int sample_size
;
2134 unsigned int distance
= 0;
2135 unsigned int rap_group_index
= 0;
2136 unsigned int rap_group_sample
= 0;
2137 int rap_group_present
= sc
->rap_group_count
&& sc
->rap_group
;
2138 int key_off
= (sc
->keyframes
&& sc
->keyframes
[0] > 0) || (sc
->stps_data
&& sc
->stps_data
[0] > 0);
2140 current_dts
-= sc
->dts_shift
;
2142 if (!sc
->sample_count
)
2144 if (sc
->sample_count
>= UINT_MAX
/ sizeof(*st
->index_entries
) - st
->nb_index_entries
)
2146 if (av_reallocp_array(&st
->index_entries
,
2147 st
->nb_index_entries
+ sc
->sample_count
,
2148 sizeof(*st
->index_entries
)) < 0) {
2149 st
->nb_index_entries
= 0;
2152 st
->index_entries_allocated_size
= (st
->nb_index_entries
+ sc
->sample_count
) * sizeof(*st
->index_entries
);
2154 for (i
= 0; i
< sc
->chunk_count
; i
++) {
2155 current_offset
= sc
->chunk_offsets
[i
];
2156 while (stsc_index
+ 1 < sc
->stsc_count
&&
2157 i
+ 1 == sc
->stsc_data
[stsc_index
+ 1].first
)
2159 for (j
= 0; j
< sc
->stsc_data
[stsc_index
].count
; j
++) {
2161 if (current_sample
>= sc
->sample_count
) {
2162 av_log(mov
->fc
, AV_LOG_ERROR
, "wrong sample count\n");
2166 if (!sc
->keyframe_absent
&& (!sc
->keyframe_count
|| current_sample
+key_off
== sc
->keyframes
[stss_index
])) {
2168 if (stss_index
+ 1 < sc
->keyframe_count
)
2170 } else if (sc
->stps_count
&& current_sample
+key_off
== sc
->stps_data
[stps_index
]) {
2172 if (stps_index
+ 1 < sc
->stps_count
)
2175 if (rap_group_present
&& rap_group_index
< sc
->rap_group_count
) {
2176 if (sc
->rap_group
[rap_group_index
].index
> 0)
2178 if (++rap_group_sample
== sc
->rap_group
[rap_group_index
].count
) {
2179 rap_group_sample
= 0;
2185 sample_size
= sc
->sample_size
> 0 ? sc
->sample_size
: sc
->sample_sizes
[current_sample
];
2186 if (sc
->pseudo_stream_id
== -1 ||
2187 sc
->stsc_data
[stsc_index
].id
- 1 == sc
->pseudo_stream_id
) {
2188 AVIndexEntry
*e
= &st
->index_entries
[st
->nb_index_entries
++];
2189 e
->pos
= current_offset
;
2190 e
->timestamp
= current_dts
;
2191 e
->size
= sample_size
;
2192 e
->min_distance
= distance
;
2193 e
->flags
= keyframe ? AVINDEX_KEYFRAME
: 0;
2194 av_log(mov
->fc
, AV_LOG_TRACE
, "AVIndex stream %d, sample %d, offset %"PRIx64
", dts %"PRId64
", "
2195 "size %d, distance %d, keyframe %d\n", st
->index
, current_sample
,
2196 current_offset
, current_dts
, sample_size
, distance
, keyframe
);
2199 current_offset
+= sample_size
;
2200 stream_size
+= sample_size
;
2201 current_dts
+= sc
->stts_data
[stts_index
].duration
;
2205 if (stts_index
+ 1 < sc
->stts_count
&& stts_sample
== sc
->stts_data
[stts_index
].count
) {
2211 if (st
->duration
> 0)
2212 st
->codec
->bit_rate
= stream_size
*8*sc
->time_scale
/st
->duration
;
2214 unsigned chunk_samples
, total
= 0;
2216 // compute total chunk count
2217 for (i
= 0; i
< sc
->stsc_count
; i
++) {
2218 unsigned count
, chunk_count
;
2220 chunk_samples
= sc
->stsc_data
[i
].count
;
2221 if (i
!= sc
->stsc_count
- 1 &&
2222 sc
->samples_per_frame
&& chunk_samples
% sc
->samples_per_frame
) {
2223 av_log(mov
->fc
, AV_LOG_ERROR
, "error unaligned chunk\n");
2227 if (sc
->samples_per_frame
>= 160) { // gsm
2228 count
= chunk_samples
/ sc
->samples_per_frame
;
2229 } else if (sc
->samples_per_frame
> 1) {
2230 unsigned samples
= (1024/sc
->samples_per_frame
)*sc
->samples_per_frame
;
2231 count
= (chunk_samples
+samples
-1) / samples
;
2233 count
= (chunk_samples
+1023) / 1024;
2236 if (i
< sc
->stsc_count
- 1)
2237 chunk_count
= sc
->stsc_data
[i
+1].first
- sc
->stsc_data
[i
].first
;
2239 chunk_count
= sc
->chunk_count
- (sc
->stsc_data
[i
].first
- 1);
2240 total
+= chunk_count
* count
;
2243 av_log(mov
->fc
, AV_LOG_TRACE
, "chunk count %d\n", total
);
2244 if (total
>= UINT_MAX
/ sizeof(*st
->index_entries
) - st
->nb_index_entries
)
2246 if (av_reallocp_array(&st
->index_entries
,
2247 st
->nb_index_entries
+ total
,
2248 sizeof(*st
->index_entries
)) < 0) {
2249 st
->nb_index_entries
= 0;
2252 st
->index_entries_allocated_size
= (st
->nb_index_entries
+ total
) * sizeof(*st
->index_entries
);
2255 for (i
= 0; i
< sc
->chunk_count
; i
++) {
2256 current_offset
= sc
->chunk_offsets
[i
];
2257 if (stsc_index
+ 1 < sc
->stsc_count
&&
2258 i
+ 1 == sc
->stsc_data
[stsc_index
+ 1].first
)
2260 chunk_samples
= sc
->stsc_data
[stsc_index
].count
;
2262 while (chunk_samples
> 0) {
2264 unsigned size
, samples
;
2266 if (sc
->samples_per_frame
>= 160) { // gsm
2267 samples
= sc
->samples_per_frame
;
2268 size
= sc
->bytes_per_frame
;
2270 if (sc
->samples_per_frame
> 1) {
2271 samples
= FFMIN((1024 / sc
->samples_per_frame
)*
2272 sc
->samples_per_frame
, chunk_samples
);
2273 size
= (samples
/ sc
->samples_per_frame
) * sc
->bytes_per_frame
;
2275 samples
= FFMIN(1024, chunk_samples
);
2276 size
= samples
* sc
->sample_size
;
2280 if (st
->nb_index_entries
>= total
) {
2281 av_log(mov
->fc
, AV_LOG_ERROR
, "wrong chunk count %d\n", total
);
2284 e
= &st
->index_entries
[st
->nb_index_entries
++];
2285 e
->pos
= current_offset
;
2286 e
->timestamp
= current_dts
;
2288 e
->min_distance
= 0;
2289 e
->flags
= AVINDEX_KEYFRAME
;
2290 av_log(mov
->fc
, AV_LOG_TRACE
, "AVIndex stream %d, chunk %d, offset %"PRIx64
", dts %"PRId64
", "
2291 "size %d, duration %d\n", st
->index
, i
, current_offset
, current_dts
,
2294 current_offset
+= size
;
2295 current_dts
+= samples
;
2296 chunk_samples
-= samples
;
2302 static int mov_open_dref(AVIOContext
**pb
, char *src
, MOVDref
*ref
,
2303 AVIOInterruptCB
*int_cb
)
2305 /* try relative path, we do not try the absolute because it can leak information about our
2306 system to an attacker */
2307 if (ref
->nlvl_to
> 0 && ref
->nlvl_from
> 0 && ref
->path
[0] != '/') {
2308 char filename
[1024];
2312 /* find a source dir */
2313 src_path
= strrchr(src
, '/');
2319 /* find a next level down to target */
2320 for (i
= 0, l
= strlen(ref
->path
) - 1; l
>= 0; l
--)
2321 if (ref
->path
[l
] == '/') {
2322 if (i
== ref
->nlvl_to
- 1)
2328 /* compose filename if next level down to target was found */
2329 if (i
== ref
->nlvl_to
- 1 && src_path
- src
< sizeof(filename
)) {
2330 memcpy(filename
, src
, src_path
- src
);
2331 filename
[src_path
- src
] = 0;
2333 for (i
= 1; i
< ref
->nlvl_from
; i
++)
2334 av_strlcat(filename
, "../", 1024);
2336 av_strlcat(filename
, ref
->path
+ l
+ 1, 1024);
2338 if (!avio_open2(pb
, filename
, AVIO_FLAG_READ
, int_cb
, NULL
))
2343 return AVERROR(ENOENT
);
2346 static int mov_read_trak(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
2349 MOVStreamContext
*sc
;
2352 st
= avformat_new_stream(c
->fc
, NULL
);
2353 if (!st
) return AVERROR(ENOMEM
);
2354 st
->id
= c
->fc
->nb_streams
;
2355 sc
= av_mallocz(sizeof(MOVStreamContext
));
2356 if (!sc
) return AVERROR(ENOMEM
);
2359 st
->codec
->codec_type
= AVMEDIA_TYPE_DATA
;
2360 sc
->ffindex
= st
->index
;
2362 if ((ret
= mov_read_default(c
, pb
, atom
)) < 0)
2366 if (sc
->chunk_count
&& (!sc
->stts_count
|| !sc
->stsc_count
||
2367 (!sc
->sample_size
&& !sc
->sample_count
))) {
2368 av_log(c
->fc
, AV_LOG_ERROR
, "stream %d, missing mandatory atoms, broken header\n",
2373 if (sc
->time_scale
<= 0) {
2374 av_log(c
->fc
, AV_LOG_WARNING
, "stream %d, timescale not set\n", st
->index
);
2375 sc
->time_scale
= c
->time_scale
;
2376 if (sc
->time_scale
<= 0)
2380 avpriv_set_pts_info(st
, 64, 1, sc
->time_scale
);
2382 mov_build_index(c
, st
);
2384 if (sc
->dref_id
-1 < sc
->drefs_count
&& sc
->drefs
[sc
->dref_id
-1].path
) {
2385 MOVDref
*dref
= &sc
->drefs
[sc
->dref_id
- 1];
2386 if (mov_open_dref(&sc
->pb
, c
->fc
->filename
, dref
, &c
->fc
->interrupt_callback
) < 0)
2387 av_log(c
->fc
, AV_LOG_ERROR
,
2388 "stream %d, error opening alias: path='%s', dir='%s', "
2389 "filename='%s', volume='%s', nlvl_from=%d, nlvl_to=%d\n",
2390 st
->index
, dref
->path
, dref
->dir
, dref
->filename
,
2391 dref
->volume
, dref
->nlvl_from
, dref
->nlvl_to
);
2395 if (st
->codec
->codec_type
== AVMEDIA_TYPE_VIDEO
) {
2396 if (!st
->sample_aspect_ratio
.num
&&
2397 (st
->codec
->width
!= sc
->width
|| st
->codec
->height
!= sc
->height
)) {
2398 st
->sample_aspect_ratio
= av_d2q(((double)st
->codec
->height
* sc
->width
) /
2399 ((double)st
->codec
->width
* sc
->height
), INT_MAX
);
2403 // done for ai5q, ai52, ai55, ai1q, ai12 and ai15.
2404 if (!st
->codec
->extradata_size
&& st
->codec
->codec_id
== AV_CODEC_ID_H264
&&
2405 TAG_IS_AVCI(st
->codec
->codec_tag
)) {
2406 ret
= ff_generate_avci_extradata(st
);
2411 switch (st
->codec
->codec_id
) {
2412 #if CONFIG_H261_DECODER
2413 case AV_CODEC_ID_H261
:
2415 #if CONFIG_H263_DECODER
2416 case AV_CODEC_ID_H263
:
2418 #if CONFIG_MPEG4_DECODER
2419 case AV_CODEC_ID_MPEG4
:
2421 st
->codec
->width
= 0; /* let decoder init width/height */
2422 st
->codec
->height
= 0;
2426 /* Do not need those anymore. */
2427 av_freep(&sc
->chunk_offsets
);
2428 av_freep(&sc
->stsc_data
);
2429 av_freep(&sc
->sample_sizes
);
2430 av_freep(&sc
->keyframes
);
2431 av_freep(&sc
->stts_data
);
2432 av_freep(&sc
->stps_data
);
2433 av_freep(&sc
->rap_group
);
2438 static int mov_read_ilst(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
2441 c
->itunes_metadata
= 1;
2442 ret
= mov_read_default(c
, pb
, atom
);
2443 c
->itunes_metadata
= 0;
2447 static int mov_read_replaygain(MOVContext
*c
, AVIOContext
*pb
, int size
)
2449 int64_t end
= avio_tell(pb
) + size
;
2450 uint8_t *key
= NULL
, *val
= NULL
;
2453 for (i
= 0; i
< 2; i
++) {
2457 if (end
- avio_tell(pb
) <= 12)
2460 len
= avio_rb32(pb
);
2461 tag
= avio_rl32(pb
);
2462 avio_skip(pb
, 4); // flags
2464 if (len
< 12 || len
- 12 > end
- avio_tell(pb
))
2468 if (tag
== MKTAG('n', 'a', 'm', 'e'))
2470 else if (tag
== MKTAG('d', 'a', 't', 'a') && len
> 4) {
2477 *p
= av_malloc(len
+ 1);
2480 avio_read(pb
, *p
, len
);
2485 av_dict_set(&c
->fc
->metadata
, key
, val
,
2486 AV_DICT_DONT_STRDUP_KEY
| AV_DICT_DONT_STRDUP_VAL
);
2490 avio_seek(pb
, end
, SEEK_SET
);
2496 static int mov_read_custom(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
2498 int64_t end
= avio_tell(pb
) + atom
.size
;
2504 len
= avio_rb32(pb
);
2505 tag
= avio_rl32(pb
);
2507 if (len
> atom
.size
)
2510 if (tag
== MKTAG('m', 'e', 'a', 'n') && len
> 12) {
2511 uint8_t domain
[128];
2514 avio_skip(pb
, 4); // flags
2517 domain_len
= avio_get_str(pb
, len
, domain
, sizeof(domain
));
2518 avio_skip(pb
, len
- domain_len
);
2519 if (!strcmp(domain
, "org.hydrogenaudio.replaygain"))
2520 return mov_read_replaygain(c
, pb
, end
- avio_tell(pb
));
2524 av_log(c
->fc
, AV_LOG_VERBOSE
,
2525 "Unhandled or malformed custom metadata of size %"PRId64
"\n", atom
.size
);
2529 static int mov_read_meta(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
2531 while (atom
.size
> 8) {
2532 uint32_t tag
= avio_rl32(pb
);
2534 if (tag
== MKTAG('h','d','l','r')) {
2535 avio_seek(pb
, -8, SEEK_CUR
);
2537 return mov_read_default(c
, pb
, atom
);
2543 static int mov_read_tkhd(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
2548 int64_t disp_transform
[2];
2549 int display_matrix
[3][3];
2551 MOVStreamContext
*sc
;
2555 if (c
->fc
->nb_streams
< 1)
2557 st
= c
->fc
->streams
[c
->fc
->nb_streams
-1];
2560 version
= avio_r8(pb
);
2561 flags
= avio_rb24(pb
);
2562 st
->disposition
|= (flags
& MOV_TKHD_FLAG_ENABLED
) ? AV_DISPOSITION_DEFAULT
: 0;
2568 avio_rb32(pb
); /* creation time */
2569 avio_rb32(pb
); /* modification time */
2571 st
->id
= (int)avio_rb32(pb
); /* track id (NOT 0 !)*/
2572 avio_rb32(pb
); /* reserved */
2574 /* highlevel (considering edits) duration in movie timebase */
2575 (version
== 1) ?
avio_rb64(pb
) : avio_rb32(pb
);
2576 avio_rb32(pb
); /* reserved */
2577 avio_rb32(pb
); /* reserved */
2579 avio_rb16(pb
); /* layer */
2580 avio_rb16(pb
); /* alternate group */
2581 avio_rb16(pb
); /* volume */
2582 avio_rb16(pb
); /* reserved */
2584 //read in the display matrix (outlined in ISO 14496-12, Section 6.2.2)
2585 // they're kept in fixed point format through all calculations
2586 // save u,v,z to store the whole matrix in the AV_PKT_DATA_DISPLAYMATRIX
2587 // side data, but the scale factor is not needed to calculate aspect ratio
2588 for (i
= 0; i
< 3; i
++) {
2589 display_matrix
[i
][0] = avio_rb32(pb
); // 16.16 fixed point
2590 display_matrix
[i
][1] = avio_rb32(pb
); // 16.16 fixed point
2591 display_matrix
[i
][2] = avio_rb32(pb
); // 2.30 fixed point
2594 width
= avio_rb32(pb
); // 16.16 fixed point track width
2595 height
= avio_rb32(pb
); // 16.16 fixed point track height
2596 sc
->width
= width
>> 16;
2597 sc
->height
= height
>> 16;
2599 // save the matrix when it is not the default identity
2600 if (display_matrix
[0][0] != (1 << 16) ||
2601 display_matrix
[1][1] != (1 << 16) ||
2602 display_matrix
[2][2] != (1 << 30) ||
2603 display_matrix
[0][1] || display_matrix
[0][2] ||
2604 display_matrix
[1][0] || display_matrix
[1][2] ||
2605 display_matrix
[2][0] || display_matrix
[2][1]) {
2608 av_freep(&sc
->display_matrix
);
2609 sc
->display_matrix
= av_malloc(sizeof(int32_t) * 9);
2610 if (!sc
->display_matrix
)
2611 return AVERROR(ENOMEM
);
2613 for (i
= 0; i
< 3; i
++)
2614 for (j
= 0; j
< 3; j
++)
2615 sc
->display_matrix
[i
* 3 + j
] = display_matrix
[i
][j
];
2618 // transform the display width/height according to the matrix
2619 // skip this when the display matrix is the identity one
2620 // to keep the same scale, use [width height 1<<16]
2621 if (width
&& height
&& sc
->display_matrix
) {
2622 for (i
= 0; i
< 2; i
++)
2624 (int64_t) width
* display_matrix
[0][i
] +
2625 (int64_t) height
* display_matrix
[1][i
] +
2626 ((int64_t) display_matrix
[2][i
] << 16);
2628 //sample aspect ratio is new width/height divided by old width/height
2629 if (disp_transform
[0] > 0 && disp_transform
[1] > 0)
2630 st
->sample_aspect_ratio
= av_d2q(
2631 ((double) disp_transform
[0] * height
) /
2632 ((double) disp_transform
[1] * width
), INT_MAX
);
2637 static int mov_read_tfhd(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
2639 MOVFragment
*frag
= &c
->fragment
;
2640 MOVTrackExt
*trex
= NULL
;
2641 int flags
, track_id
, i
;
2643 avio_r8(pb
); /* version */
2644 flags
= avio_rb24(pb
);
2646 track_id
= avio_rb32(pb
);
2648 return AVERROR_INVALIDDATA
;
2649 frag
->track_id
= track_id
;
2650 for (i
= 0; i
< c
->trex_count
; i
++)
2651 if (c
->trex_data
[i
].track_id
== frag
->track_id
) {
2652 trex
= &c
->trex_data
[i
];
2656 av_log(c
->fc
, AV_LOG_ERROR
, "could not find corresponding trex\n");
2657 return AVERROR_INVALIDDATA
;
2660 frag
->base_data_offset
= flags
& MOV_TFHD_BASE_DATA_OFFSET ?
2661 avio_rb64(pb
) : flags
& MOV_TFHD_DEFAULT_BASE_IS_MOOF ?
2662 frag
->moof_offset
: frag
->implicit_offset
;
2663 frag
->stsd_id
= flags
& MOV_TFHD_STSD_ID ?
avio_rb32(pb
) : trex
->stsd_id
;
2665 frag
->duration
= flags
& MOV_TFHD_DEFAULT_DURATION ?
2666 avio_rb32(pb
) : trex
->duration
;
2667 frag
->size
= flags
& MOV_TFHD_DEFAULT_SIZE ?
2668 avio_rb32(pb
) : trex
->size
;
2669 frag
->flags
= flags
& MOV_TFHD_DEFAULT_FLAGS ?
2670 avio_rb32(pb
) : trex
->flags
;
2671 av_log(c
->fc
, AV_LOG_TRACE
, "frag flags 0x%x\n", frag
->flags
);
2675 static int mov_read_chap(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
2677 c
->chapter_track
= avio_rb32(pb
);
2681 static int mov_read_trex(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
2686 if ((uint64_t)c
->trex_count
+1 >= UINT_MAX
/ sizeof(*c
->trex_data
))
2687 return AVERROR_INVALIDDATA
;
2688 if ((err
= av_reallocp_array(&c
->trex_data
, c
->trex_count
+ 1,
2689 sizeof(*c
->trex_data
))) < 0) {
2693 trex
= &c
->trex_data
[c
->trex_count
++];
2694 avio_r8(pb
); /* version */
2695 avio_rb24(pb
); /* flags */
2696 trex
->track_id
= avio_rb32(pb
);
2697 trex
->stsd_id
= avio_rb32(pb
);
2698 trex
->duration
= avio_rb32(pb
);
2699 trex
->size
= avio_rb32(pb
);
2700 trex
->flags
= avio_rb32(pb
);
2704 static int mov_read_tfdt(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
2706 MOVFragment
*frag
= &c
->fragment
;
2707 AVStream
*st
= NULL
;
2708 MOVStreamContext
*sc
;
2711 for (i
= 0; i
< c
->fc
->nb_streams
; i
++) {
2712 if (c
->fc
->streams
[i
]->id
== frag
->track_id
) {
2713 st
= c
->fc
->streams
[i
];
2718 av_log(c
->fc
, AV_LOG_ERROR
, "could not find corresponding track id %d\n", frag
->track_id
);
2719 return AVERROR_INVALIDDATA
;
2722 if (sc
->pseudo_stream_id
+ 1 != frag
->stsd_id
)
2724 version
= avio_r8(pb
);
2725 avio_rb24(pb
); /* flags */
2727 sc
->track_end
= avio_rb64(pb
);
2729 sc
->track_end
= avio_rb32(pb
);
2734 static int mov_read_trun(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
2736 MOVFragment
*frag
= &c
->fragment
;
2737 AVStream
*st
= NULL
;
2738 MOVStreamContext
*sc
;
2742 int data_offset
= 0;
2743 unsigned entries
, first_sample_flags
= frag
->flags
;
2744 int flags
, distance
, i
, found_keyframe
= 0, err
;
2746 for (i
= 0; i
< c
->fc
->nb_streams
; i
++) {
2747 if (c
->fc
->streams
[i
]->id
== frag
->track_id
) {
2748 st
= c
->fc
->streams
[i
];
2753 av_log(c
->fc
, AV_LOG_ERROR
, "could not find corresponding track id %d\n", frag
->track_id
);
2754 return AVERROR_INVALIDDATA
;
2757 if (sc
->pseudo_stream_id
+1 != frag
->stsd_id
)
2759 avio_r8(pb
); /* version */
2760 flags
= avio_rb24(pb
);
2761 entries
= avio_rb32(pb
);
2762 av_log(c
->fc
, AV_LOG_TRACE
, "flags 0x%x entries %d\n", flags
, entries
);
2764 /* Always assume the presence of composition time offsets.
2765 * Without this assumption, for instance, we cannot deal with a track in fragmented movies that meet the following.
2766 * 1) in the initial movie, there are no samples.
2767 * 2) in the first movie fragment, there is only one sample without composition time offset.
2768 * 3) in the subsequent movie fragments, there are samples with composition time offset. */
2769 if (!sc
->ctts_count
&& sc
->sample_count
)
2771 /* Complement ctts table if moov atom doesn't have ctts atom. */
2772 ctts_data
= av_realloc(NULL
, sizeof(*sc
->ctts_data
));
2774 return AVERROR(ENOMEM
);
2775 sc
->ctts_data
= ctts_data
;
2776 sc
->ctts_data
[sc
->ctts_count
].count
= sc
->sample_count
;
2777 sc
->ctts_data
[sc
->ctts_count
].duration
= 0;
2780 if ((uint64_t)entries
+sc
->ctts_count
>= UINT_MAX
/sizeof(*sc
->ctts_data
))
2781 return AVERROR_INVALIDDATA
;
2782 if ((err
= av_reallocp_array(&sc
->ctts_data
, entries
+ sc
->ctts_count
,
2783 sizeof(*sc
->ctts_data
))) < 0) {
2787 if (flags
& MOV_TRUN_DATA_OFFSET
) data_offset
= avio_rb32(pb
);
2788 if (flags
& MOV_TRUN_FIRST_SAMPLE_FLAGS
) first_sample_flags
= avio_rb32(pb
);
2789 dts
= sc
->track_end
- sc
->time_offset
;
2790 offset
= frag
->base_data_offset
+ data_offset
;
2792 av_log(c
->fc
, AV_LOG_TRACE
, "first sample flags 0x%x\n", first_sample_flags
);
2793 for (i
= 0; i
< entries
&& !pb
->eof_reached
; i
++) {
2794 unsigned sample_size
= frag
->size
;
2795 int sample_flags
= i ? frag
->flags
: first_sample_flags
;
2796 unsigned sample_duration
= frag
->duration
;
2799 if (flags
& MOV_TRUN_SAMPLE_DURATION
) sample_duration
= avio_rb32(pb
);
2800 if (flags
& MOV_TRUN_SAMPLE_SIZE
) sample_size
= avio_rb32(pb
);
2801 if (flags
& MOV_TRUN_SAMPLE_FLAGS
) sample_flags
= avio_rb32(pb
);
2802 sc
->ctts_data
[sc
->ctts_count
].count
= 1;
2803 sc
->ctts_data
[sc
->ctts_count
].duration
= (flags
& MOV_TRUN_SAMPLE_CTS
) ?
2806 if (st
->codec
->codec_type
== AVMEDIA_TYPE_AUDIO
)
2808 else if (!found_keyframe
)
2809 keyframe
= found_keyframe
=
2810 !(sample_flags
& (MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC
|
2811 MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES
));
2814 av_add_index_entry(st
, offset
, dts
, sample_size
, distance
,
2815 keyframe ? AVINDEX_KEYFRAME
: 0);
2816 av_log(c
->fc
, AV_LOG_TRACE
, "AVIndex stream %d, sample %d, offset %"PRIx64
", dts %"PRId64
", "
2817 "size %d, distance %d, keyframe %d\n", st
->index
, sc
->sample_count
+i
,
2818 offset
, dts
, sample_size
, distance
, keyframe
);
2820 dts
+= sample_duration
;
2821 offset
+= sample_size
;
2822 sc
->data_size
+= sample_size
;
2825 if (pb
->eof_reached
)
2828 frag
->implicit_offset
= offset
;
2829 st
->duration
= sc
->track_end
= dts
+ sc
->time_offset
;
2833 /* this atom should be null (from specs), but some buggy files put the 'moov' atom inside it... */
2834 /* like the files created with Adobe Premiere 5.0, for samples see */
2835 /* http://graphics.tudelft.nl/~wouter/publications/soundtests/ */
2836 static int mov_read_wide(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
2841 return 0; /* continue */
2842 if (avio_rb32(pb
) != 0) { /* 0 sized mdat atom... use the 'wide' atom size */
2843 avio_skip(pb
, atom
.size
- 4);
2846 atom
.type
= avio_rl32(pb
);
2848 if (atom
.type
!= MKTAG('m','d','a','t')) {
2849 avio_skip(pb
, atom
.size
);
2852 err
= mov_read_mdat(c
, pb
, atom
);
2856 static int mov_read_cmov(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
2861 uint8_t *moov_data
; /* uncompressed data */
2862 long cmov_len
, moov_len
;
2865 avio_rb32(pb
); /* dcom atom */
2866 if (avio_rl32(pb
) != MKTAG('d','c','o','m'))
2867 return AVERROR_INVALIDDATA
;
2868 if (avio_rl32(pb
) != MKTAG('z','l','i','b')) {
2869 av_log(c
->fc
, AV_LOG_ERROR
, "unknown compression for cmov atom !");
2870 return AVERROR_INVALIDDATA
;
2872 avio_rb32(pb
); /* cmvd atom */
2873 if (avio_rl32(pb
) != MKTAG('c','m','v','d'))
2874 return AVERROR_INVALIDDATA
;
2875 moov_len
= avio_rb32(pb
); /* uncompressed size */
2876 cmov_len
= atom
.size
- 6 * 4;
2878 cmov_data
= av_malloc(cmov_len
);
2880 return AVERROR(ENOMEM
);
2881 moov_data
= av_malloc(moov_len
);
2884 return AVERROR(ENOMEM
);
2886 avio_read(pb
, cmov_data
, cmov_len
);
2887 if (uncompress (moov_data
, (uLongf
*) &moov_len
, (const Bytef
*)cmov_data
, cmov_len
) != Z_OK
)
2888 goto free_and_return
;
2889 if (ffio_init_context(&ctx
, moov_data
, moov_len
, 0, NULL
, NULL
, NULL
, NULL
) != 0)
2890 goto free_and_return
;
2891 atom
.type
= MKTAG('m','o','o','v');
2892 atom
.size
= moov_len
;
2893 ret
= mov_read_default(c
, &ctx
, atom
);
2899 av_log(c
->fc
, AV_LOG_ERROR
, "this file requires zlib support compiled in\n");
2900 return AVERROR(ENOSYS
);
2904 /* edit list atom */
2905 static int mov_read_elst(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
2907 MOVStreamContext
*sc
;
2908 int i
, edit_count
, version
;
2910 if (c
->fc
->nb_streams
< 1)
2912 sc
= c
->fc
->streams
[c
->fc
->nb_streams
-1]->priv_data
;
2914 version
= avio_r8(pb
); /* version */
2915 avio_rb24(pb
); /* flags */
2916 edit_count
= avio_rb32(pb
); /* entries */
2918 if ((uint64_t)edit_count
*12+8 > atom
.size
)
2919 return AVERROR_INVALIDDATA
;
2921 for (i
=0; i
<edit_count
; i
++){
2925 duration
= avio_rb64(pb
);
2926 time
= avio_rb64(pb
);
2928 duration
= avio_rb32(pb
); /* segment duration */
2929 time
= (int32_t)avio_rb32(pb
); /* media time */
2931 avio_rb32(pb
); /* Media rate */
2932 if (i
== 0 && time
>= -1) {
2933 sc
->time_offset
= time
!= -1 ? time
: -duration
;
2938 av_log(c
->fc
, AV_LOG_WARNING
, "multiple edit list entries, "
2939 "a/v desync might occur, patch welcome\n");
2941 av_log(c
->fc
, AV_LOG_TRACE
, "track[%i].edit_count = %i\n", c
->fc
->nb_streams
-1, edit_count
);
2945 static const MOVParseTableEntry mov_default_parse_table
[] = {
2946 { MKTAG('a','v','s','s'), mov_read_extradata
},
2947 { MKTAG('c','h','p','l'), mov_read_chpl
},
2948 { MKTAG('c','o','6','4'), mov_read_stco
},
2949 { MKTAG('c','o','l','r'), mov_read_colr
},
2950 { MKTAG('c','t','t','s'), mov_read_ctts
}, /* composition time to sample */
2951 { MKTAG('d','i','n','f'), mov_read_default
},
2952 { MKTAG('d','r','e','f'), mov_read_dref
},
2953 { MKTAG('e','d','t','s'), mov_read_default
},
2954 { MKTAG('e','l','s','t'), mov_read_elst
},
2955 { MKTAG('e','n','d','a'), mov_read_enda
},
2956 { MKTAG('f','i','e','l'), mov_read_fiel
},
2957 { MKTAG('f','t','y','p'), mov_read_ftyp
},
2958 { MKTAG('g','l','b','l'), mov_read_glbl
},
2959 { MKTAG('h','d','l','r'), mov_read_hdlr
},
2960 { MKTAG('i','l','s','t'), mov_read_ilst
},
2961 { MKTAG('j','p','2','h'), mov_read_extradata
},
2962 { MKTAG('m','d','a','t'), mov_read_mdat
},
2963 { MKTAG('m','d','h','d'), mov_read_mdhd
},
2964 { MKTAG('m','d','i','a'), mov_read_default
},
2965 { MKTAG('m','e','t','a'), mov_read_meta
},
2966 { MKTAG('m','i','n','f'), mov_read_default
},
2967 { MKTAG('m','o','o','f'), mov_read_moof
},
2968 { MKTAG('m','o','o','v'), mov_read_moov
},
2969 { MKTAG('m','v','e','x'), mov_read_default
},
2970 { MKTAG('m','v','h','d'), mov_read_mvhd
},
2971 { MKTAG('S','M','I',' '), mov_read_smi
}, /* Sorenson extension ??? */
2972 { MKTAG('a','l','a','c'), mov_read_extradata
}, /* alac specific atom */
2973 { MKTAG('a','v','c','C'), mov_read_glbl
},
2974 { MKTAG('p','a','s','p'), mov_read_pasp
},
2975 { MKTAG('s','t','b','l'), mov_read_default
},
2976 { MKTAG('s','t','c','o'), mov_read_stco
},
2977 { MKTAG('s','t','p','s'), mov_read_stps
},
2978 { MKTAG('s','t','r','f'), mov_read_strf
},
2979 { MKTAG('s','t','s','c'), mov_read_stsc
},
2980 { MKTAG('s','t','s','d'), mov_read_stsd
}, /* sample description */
2981 { MKTAG('s','t','s','s'), mov_read_stss
}, /* sync sample */
2982 { MKTAG('s','t','s','z'), mov_read_stsz
}, /* sample size */
2983 { MKTAG('s','t','t','s'), mov_read_stts
},
2984 { MKTAG('s','t','z','2'), mov_read_stsz
}, /* compact sample size */
2985 { MKTAG('t','k','h','d'), mov_read_tkhd
}, /* track header */
2986 { MKTAG('t','f','d','t'), mov_read_tfdt
},
2987 { MKTAG('t','f','h','d'), mov_read_tfhd
}, /* track fragment header */
2988 { MKTAG('t','r','a','k'), mov_read_trak
},
2989 { MKTAG('t','r','a','f'), mov_read_default
},
2990 { MKTAG('t','r','e','f'), mov_read_default
},
2991 { MKTAG('c','h','a','p'), mov_read_chap
},
2992 { MKTAG('t','r','e','x'), mov_read_trex
},
2993 { MKTAG('t','r','u','n'), mov_read_trun
},
2994 { MKTAG('u','d','t','a'), mov_read_default
},
2995 { MKTAG('w','a','v','e'), mov_read_wave
},
2996 { MKTAG('e','s','d','s'), mov_read_esds
},
2997 { MKTAG('d','a','c','3'), mov_read_dac3
}, /* AC-3 info */
2998 { MKTAG('d','e','c','3'), mov_read_dec3
}, /* EAC-3 info */
2999 { MKTAG('w','i','d','e'), mov_read_wide
}, /* place holder */
3000 { MKTAG('w','f','e','x'), mov_read_wfex
},
3001 { MKTAG('c','m','o','v'), mov_read_cmov
},
3002 { MKTAG('c','h','a','n'), mov_read_chan
}, /* channel layout */
3003 { MKTAG('d','v','c','1'), mov_read_dvc1
},
3004 { MKTAG('s','b','g','p'), mov_read_sbgp
},
3005 { MKTAG('h','v','c','C'), mov_read_glbl
},
3006 { MKTAG('-','-','-','-'), mov_read_custom
},
3010 static int mov_read_default(MOVContext
*c
, AVIOContext
*pb
, MOVAtom atom
)
3012 int64_t total_size
= 0;
3017 atom
.size
= INT64_MAX
;
3018 while (total_size
+ 8 < atom
.size
&& !pb
->eof_reached
) {
3019 int (*parse
)(MOVContext
*, AVIOContext
*, MOVAtom
) = NULL
;
3022 if (atom
.size
>= 8) {
3023 a
.size
= avio_rb32(pb
);
3024 a
.type
= avio_rl32(pb
);
3026 av_log(c
->fc
, AV_LOG_TRACE
, "type: %08x '%.4s' parent:'%.4s' sz: %"PRId64
" %"PRId64
" %"PRId64
"\n",
3027 a
.type
, (char*)&a
.type
, (char*)&atom
.type
, a
.size
, total_size
, atom
.size
);
3029 if (a
.size
== 1) { /* 64 bit extended size */
3030 a
.size
= avio_rb64(pb
) - 8;
3034 a
.size
= atom
.size
- total_size
;
3041 a
.size
= FFMIN(a
.size
, atom
.size
- total_size
);
3043 for (i
= 0; mov_default_parse_table
[i
].type
; i
++)
3044 if (mov_default_parse_table
[i
].type
== a
.type
) {
3045 parse
= mov_default_parse_table
[i
].parse
;
3049 // container is user data
3050 if (!parse
&& (atom
.type
== MKTAG('u','d','t','a') ||
3051 atom
.type
== MKTAG('i','l','s','t')))
3052 parse
= mov_read_udta_string
;
3054 if (!parse
) { /* skip leaf atoms data */
3055 avio_skip(pb
, a
.size
);
3057 int64_t start_pos
= avio_tell(pb
);
3059 int err
= parse(c
, pb
, a
);
3062 if (c
->found_moov
&& c
->found_mdat
&&
3063 ((!pb
->seekable
|| c
->fc
->flags
& AVFMT_FLAG_IGNIDX
) ||
3064 start_pos
+ a
.size
== avio_size(pb
))) {
3065 if (!pb
->seekable
|| c
->fc
->flags
& AVFMT_FLAG_IGNIDX
)
3066 c
->next_root_atom
= start_pos
+ a
.size
;
3069 left
= a
.size
- avio_tell(pb
) + start_pos
;
3070 if (left
> 0) /* skip garbage at atom end */
3071 avio_skip(pb
, left
);
3072 else if (left
< 0) {
3073 av_log(c
->fc
, AV_LOG_WARNING
,
3074 "overread end of atom '%.4s' by %"PRId64
" bytes\n",
3075 (char*)&a
.type
, -left
);
3076 avio_seek(pb
, left
, SEEK_CUR
);
3080 total_size
+= a
.size
;
3083 if (total_size
< atom
.size
&& atom
.size
< 0x7ffff)
3084 avio_skip(pb
, atom
.size
- total_size
);
3089 static int mov_probe(AVProbeData
*p
)
3091 unsigned int offset
;
3095 /* check file header */
3098 /* ignore invalid offset */
3099 if ((offset
+ 8) > (unsigned int)p
->buf_size
)
3101 tag
= AV_RL32(p
->buf
+ offset
+ 4);
3103 /* check for obvious tags */
3104 case MKTAG('j','P',' ',' '): /* jpeg 2000 signature */
3105 case MKTAG('m','o','o','v'):
3106 case MKTAG('m','d','a','t'):
3107 case MKTAG('p','n','o','t'): /* detect movs with preview pics like ew.mov and april.mov */
3108 case MKTAG('u','d','t','a'): /* Packet Video PVAuthor adds this and a lot of more junk */
3109 case MKTAG('f','t','y','p'):
3110 return AVPROBE_SCORE_MAX
;
3111 /* those are more common words, so rate then a bit less */
3112 case MKTAG('e','d','i','w'): /* xdcam files have reverted first tags */
3113 case MKTAG('w','i','d','e'):
3114 case MKTAG('f','r','e','e'):
3115 case MKTAG('j','u','n','k'):
3116 case MKTAG('p','i','c','t'):
3117 return AVPROBE_SCORE_MAX
- 5;
3118 case MKTAG(0x82,0x82,0x7f,0x7d):
3119 case MKTAG('s','k','i','p'):
3120 case MKTAG('u','u','i','d'):
3121 case MKTAG('p','r','f','l'):
3122 offset
= AV_RB32(p
->buf
+offset
) + offset
;
3123 /* if we only find those cause probedata is too small at least rate them */
3124 score
= AVPROBE_SCORE_EXTENSION
;
3127 /* unrecognized tag */
3133 // must be done after parsing all trak because there's no order requirement
3134 static void mov_read_chapters(AVFormatContext
*s
)
3136 MOVContext
*mov
= s
->priv_data
;
3137 AVStream
*st
= NULL
;
3138 MOVStreamContext
*sc
;
3142 for (i
= 0; i
< s
->nb_streams
; i
++)
3143 if (s
->streams
[i
]->id
== mov
->chapter_track
) {
3148 av_log(s
, AV_LOG_ERROR
, "Referenced QT chapter track not found\n");
3152 st
->discard
= AVDISCARD_ALL
;
3154 cur_pos
= avio_tell(sc
->pb
);
3156 for (i
= 0; i
< st
->nb_index_entries
; i
++) {
3157 AVIndexEntry
*sample
= &st
->index_entries
[i
];
3158 int64_t end
= i
+1 < st
->nb_index_entries ? st
->index_entries
[i
+1].timestamp
: st
->duration
;
3163 if (avio_seek(sc
->pb
, sample
->pos
, SEEK_SET
) != sample
->pos
) {
3164 av_log(s
, AV_LOG_ERROR
, "Chapter %d not found in file\n", i
);
3168 // the first two bytes are the length of the title
3169 len
= avio_rb16(sc
->pb
);
3170 if (len
> sample
->size
-2)
3172 title_len
= 2*len
+ 1;
3173 if (!(title
= av_mallocz(title_len
)))
3176 // The samples could theoretically be in any encoding if there's an encd
3177 // atom following, but in practice are only utf-8 or utf-16, distinguished
3178 // instead by the presence of a BOM
3182 ch
= avio_rb16(sc
->pb
);
3184 avio_get_str16be(sc
->pb
, len
, title
, title_len
);
3185 else if (ch
== 0xfffe)
3186 avio_get_str16le(sc
->pb
, len
, title
, title_len
);
3189 if (len
== 1 || len
== 2)
3192 avio_get_str(sc
->pb
, len
- 2, title
+ 2, title_len
- 2);
3196 avpriv_new_chapter(s
, i
, st
->time_base
, sample
->timestamp
, end
, title
);
3200 avio_seek(sc
->pb
, cur_pos
, SEEK_SET
);
3203 static int mov_read_close(AVFormatContext
*s
)
3205 MOVContext
*mov
= s
->priv_data
;
3208 for (i
= 0; i
< s
->nb_streams
; i
++) {
3209 AVStream
*st
= s
->streams
[i
];
3210 MOVStreamContext
*sc
= st
->priv_data
;
3212 av_freep(&sc
->ctts_data
);
3213 for (j
= 0; j
< sc
->drefs_count
; j
++) {
3214 av_freep(&sc
->drefs
[j
].path
);
3215 av_freep(&sc
->drefs
[j
].dir
);
3217 av_freep(&sc
->drefs
);
3218 if (sc
->pb
&& sc
->pb
!= s
->pb
)
3221 av_freep(&sc
->chunk_offsets
);
3222 av_freep(&sc
->stsc_data
);
3223 av_freep(&sc
->sample_sizes
);
3224 av_freep(&sc
->keyframes
);
3225 av_freep(&sc
->stts_data
);
3226 av_freep(&sc
->stps_data
);
3227 av_freep(&sc
->rap_group
);
3228 av_freep(&sc
->display_matrix
);
3231 if (mov
->dv_demux
) {
3232 avformat_free_context(mov
->dv_fctx
);
3233 mov
->dv_fctx
= NULL
;
3236 av_freep(&mov
->trex_data
);
3241 static int mov_read_header(AVFormatContext
*s
)
3243 MOVContext
*mov
= s
->priv_data
;
3244 AVIOContext
*pb
= s
->pb
;
3246 MOVAtom atom
= { AV_RL32("root") };
3250 /* .mov and .mp4 aren't streamable anyway (only progressive download if moov is before mdat) */
3252 atom
.size
= avio_size(pb
);
3254 atom
.size
= INT64_MAX
;
3256 /* check MOV header */
3257 if ((err
= mov_read_default(mov
, pb
, atom
)) < 0) {
3258 av_log(s
, AV_LOG_ERROR
, "error reading header: %d\n", err
);
3262 if (!mov
->found_moov
) {
3263 av_log(s
, AV_LOG_ERROR
, "moov atom not found\n");
3265 return AVERROR_INVALIDDATA
;
3267 av_log(mov
->fc
, AV_LOG_TRACE
, "on_parse_exit_offset=%"PRId64
"\n", avio_tell(pb
));
3269 if (pb
->seekable
&& mov
->chapter_track
> 0)
3270 mov_read_chapters(s
);
3272 for (i
= 0; i
< s
->nb_streams
; i
++) {
3273 AVStream
*st
= s
->streams
[i
];
3274 MOVStreamContext
*sc
= st
->priv_data
;
3276 if (st
->codec
->codec_type
== AVMEDIA_TYPE_SUBTITLE
) {
3277 if (st
->codec
->width
<= 0 || st
->codec
->height
<= 0) {
3278 st
->codec
->width
= sc
->width
;
3279 st
->codec
->height
= sc
->height
;
3281 if (st
->codec
->codec_id
== AV_CODEC_ID_DVD_SUBTITLE
) {
3282 if ((err
= mov_rewrite_dvd_sub_extradata(st
)) < 0)
3288 if (mov
->trex_data
) {
3289 for (i
= 0; i
< s
->nb_streams
; i
++) {
3290 AVStream
*st
= s
->streams
[i
];
3291 MOVStreamContext
*sc
= st
->priv_data
;
3292 if (st
->duration
> 0)
3293 st
->codec
->bit_rate
= sc
->data_size
* 8 * sc
->time_scale
/ st
->duration
;
3297 for (i
= 0; i
< s
->nb_streams
; i
++) {
3298 AVStream
*st
= s
->streams
[i
];
3299 MOVStreamContext
*sc
= st
->priv_data
;
3301 switch (st
->codec
->codec_type
) {
3302 case AVMEDIA_TYPE_AUDIO
:
3303 err
= ff_replaygain_export(st
, s
->metadata
);
3309 case AVMEDIA_TYPE_VIDEO
:
3310 if (sc
->display_matrix
) {
3311 AVPacketSideData
*sd
, *tmp
;
3313 tmp
= av_realloc_array(st
->side_data
,
3314 st
->nb_side_data
+ 1, sizeof(*tmp
));
3316 return AVERROR(ENOMEM
);
3318 st
->side_data
= tmp
;
3321 sd
= &st
->side_data
[st
->nb_side_data
- 1];
3322 sd
->type
= AV_PKT_DATA_DISPLAYMATRIX
;