3 * Copyright (c) 2001 Fabrice Bellard
4 * Copyright (c) 2009 Baptiste Coudurier <baptiste dot coudurier at gmail dot com>
6 * This file is part of FFmpeg.
8 * FFmpeg is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
13 * FFmpeg is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with FFmpeg; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
26 //#define DEBUG_METADATA
27 //#define MOV_EXPORT_ALL_METADATA
29 #include "libavutil/intreadwrite.h"
30 #include "libavutil/avstring.h"
34 #include "libavcodec/mpeg4audio.h"
35 #include "libavcodec/mpegaudiodata.h"
36 #include "libavcodec/get_bits.h"
43 * First version by Francois Revol revol@free.fr
44 * Seek function by Gael Chardon gael.dev@4now.net
46 * Features and limitations:
47 * - reads most of the QT files I have (at least the structure),
48 * Sample QuickTime files with mp3 audio can be found at: http://www.3ivx.com/showcase.html
49 * - the code is quite ugly... maybe I won't do it recursive next time :-)
51 * Funny I didn't know about http://sourceforge.net/projects/qt-ffmpeg/
52 * when coding this :) (it's a writer anyway)
54 * Reference documents:
55 * http://www.geocities.com/xhelmboyx/quicktime/formats/qtm-layout.txt
57 * http://developer.apple.com/documentation/QuickTime/QTFF/
58 * http://developer.apple.com/documentation/QuickTime/QTFF/qtff.pdf
59 * QuickTime is a trademark of Apple (AFAIK :))
62 #include "qtpalette.h"
68 /* XXX: it's the first time I make a recursive parser I think... sorry if it's ugly :P */
70 /* those functions parse an atom */
72 0: continue to parse next atom
73 <0: error occurred, exit
75 /* links atom IDs to parse functions */
76 typedef struct MOVParseTableEntry {
78 int (*parse)(MOVContext *ctx, ByteIOContext *pb, MOVAtom atom);
81 static const MOVParseTableEntry mov_default_parse_table[];
83 static int mov_metadata_trkn(MOVContext *c, ByteIOContext *pb, unsigned len)
87 get_be16(pb); // unknown
88 snprintf(buf, sizeof(buf), "%d", get_be16(pb));
89 av_metadata_set(&c->fc->metadata, "track", buf);
91 get_be16(pb); // total tracks
96 static int mov_read_udta_string(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
98 #ifdef MOV_EXPORT_ALL_METADATA
101 char str[1024], key2[16], language[4] = {0};
102 const char *key = NULL;
104 int (*parse)(MOVContext*, ByteIOContext*, unsigned) = NULL;
107 case MKTAG(0xa9,'n','a','m'): key = "title"; break;
108 case MKTAG(0xa9,'a','u','t'):
109 case MKTAG(0xa9,'A','R','T'):
110 case MKTAG(0xa9,'w','r','t'): key = "author"; break;
111 case MKTAG(0xa9,'c','p','y'): key = "copyright"; break;
112 case MKTAG(0xa9,'c','m','t'):
113 case MKTAG(0xa9,'i','n','f'): key = "comment"; break;
114 case MKTAG(0xa9,'a','l','b'): key = "album"; break;
115 case MKTAG(0xa9,'d','a','y'): key = "year"; break;
116 case MKTAG(0xa9,'g','e','n'): key = "genre"; break;
117 case MKTAG(0xa9,'t','o','o'):
118 case MKTAG(0xa9,'e','n','c'): key = "muxer"; break;
119 case MKTAG( 't','r','k','n'): key = "track";
120 parse = mov_metadata_trkn; break;
123 if (c->itunes_metadata && atom.size > 8) {
124 int data_size = get_be32(pb);
125 int tag = get_le32(pb);
126 if (tag == MKTAG('d','a','t','a')) {
127 get_be32(pb); // type
128 get_be32(pb); // unknown
129 str_size = data_size - 16;
132 } else if (atom.size > 4 && key && !c->itunes_metadata) {
133 str_size = get_be16(pb); // string length
134 ff_mov_lang_to_iso639(get_be16(pb), language);
137 str_size = atom.size;
139 #ifdef MOV_EXPORT_ALL_METADATA
141 snprintf(tmp_key, 5, "%.4s", (char*)&atom.type);
151 str_size = FFMIN3(sizeof(str)-1, str_size, atom.size);
154 parse(c, pb, str_size);
156 get_buffer(pb, str, str_size);
158 av_metadata_set(&c->fc->metadata, key, str);
159 if (*language && strcmp(language, "und")) {
160 snprintf(key2, sizeof(key2), "%s-%s", key, language);
161 av_metadata_set(&c->fc->metadata, key2, str);
164 #ifdef DEBUG_METADATA
165 av_log(c->fc, AV_LOG_DEBUG, "lang \"%3s\" ", language);
166 av_log(c->fc, AV_LOG_DEBUG, "tag \"%s\" value \"%s\" atom \"%.4s\" %d %lld\n",
167 key, str, (char*)&atom.type, str_size, atom.size);
173 static int mov_read_default(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
175 int64_t total_size = 0;
180 a.offset = atom.offset;
183 atom.size = INT64_MAX;
184 while(((total_size + 8) < atom.size) && !url_feof(pb) && !err) {
185 int (*parse)(MOVContext*, ByteIOContext*, MOVAtom) = NULL;
189 a.size = get_be32(pb);
190 a.type = get_le32(pb);
194 dprintf(c->fc, "type: %08x %.4s sz: %"PRIx64" %"PRIx64" %"PRIx64"\n",
195 a.type, (char*)&a.type, a.size, atom.size, total_size);
196 if (a.size == 1) { /* 64 bit extended size */
197 a.size = get_be64(pb) - 8;
202 a.size = atom.size - total_size;
209 a.size = FFMIN(a.size, atom.size - total_size);
211 for (i = 0; mov_default_parse_table[i].type; i++)
212 if (mov_default_parse_table[i].type == a.type) {
213 parse = mov_default_parse_table[i].parse;
217 // container is user data
218 if (!parse && (atom.type == MKTAG('u','d','t','a') ||
219 atom.type == MKTAG('i','l','s','t')))
220 parse = mov_read_udta_string;
222 if (!parse) { /* skip leaf atoms data */
223 url_fskip(pb, a.size);
225 int64_t start_pos = url_ftell(pb);
227 err = parse(c, pb, a);
228 if (url_is_streamed(pb) && c->found_moov && c->found_mdat)
230 left = a.size - url_ftell(pb) + start_pos;
231 if (left > 0) /* skip garbage at atom end */
236 total_size += a.size;
239 if (!err && total_size < atom.size && atom.size < 0x7ffff)
240 url_fskip(pb, atom.size - total_size);
245 static int mov_read_dref(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
248 MOVStreamContext *sc;
251 if (c->fc->nb_streams < 1)
253 st = c->fc->streams[c->fc->nb_streams-1];
256 get_be32(pb); // version + flags
257 entries = get_be32(pb);
258 if (entries >= UINT_MAX / sizeof(*sc->drefs))
260 sc->drefs = av_mallocz(entries * sizeof(*sc->drefs));
262 return AVERROR(ENOMEM);
263 sc->drefs_count = entries;
265 for (i = 0; i < sc->drefs_count; i++) {
266 MOVDref *dref = &sc->drefs[i];
267 uint32_t size = get_be32(pb);
268 int64_t next = url_ftell(pb) + size - 4;
270 dref->type = get_le32(pb);
271 get_be32(pb); // version + flags
272 dprintf(c->fc, "type %.4s size %d\n", (char*)&dref->type, size);
274 if (dref->type == MKTAG('a','l','i','s') && size > 150) {
275 /* macintosh alias record */
276 uint16_t volume_len, len;
282 volume_len = get_byte(pb);
283 volume_len = FFMIN(volume_len, 27);
284 get_buffer(pb, volume, 27);
285 volume[volume_len] = 0;
286 av_log(c->fc, AV_LOG_DEBUG, "volume %s, len %d\n", volume, volume_len);
290 for (type = 0; type != -1 && url_ftell(pb) < next; ) {
293 av_log(c->fc, AV_LOG_DEBUG, "type %d, len %d\n", type, len);
296 if (type == 2) { // absolute path
298 dref->path = av_mallocz(len+1);
300 return AVERROR(ENOMEM);
301 get_buffer(pb, dref->path, len);
302 if (len > volume_len && !strncmp(dref->path, volume, volume_len)) {
304 memmove(dref->path, dref->path+volume_len, len);
307 for (j = 0; j < len; j++)
308 if (dref->path[j] == ':')
310 av_log(c->fc, AV_LOG_DEBUG, "path %s\n", dref->path);
315 url_fseek(pb, next, SEEK_SET);
320 static int mov_read_hdlr(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
326 if (c->fc->nb_streams < 1) // meta before first trak
329 st = c->fc->streams[c->fc->nb_streams-1];
331 get_byte(pb); /* version */
332 get_be24(pb); /* flags */
335 ctype = get_le32(pb);
336 type = get_le32(pb); /* component subtype */
338 dprintf(c->fc, "ctype= %.4s (0x%08x)\n", (char*)&ctype, ctype);
339 dprintf(c->fc, "stype= %.4s\n", (char*)&type);
341 if (type == MKTAG('v','i','d','e'))
342 st->codec->codec_type = CODEC_TYPE_VIDEO;
343 else if(type == MKTAG('s','o','u','n'))
344 st->codec->codec_type = CODEC_TYPE_AUDIO;
345 else if(type == MKTAG('m','1','a',' '))
346 st->codec->codec_id = CODEC_ID_MP2;
347 else if(type == MKTAG('s','u','b','p'))
348 st->codec->codec_type = CODEC_TYPE_SUBTITLE;
350 get_be32(pb); /* component manufacture */
351 get_be32(pb); /* component flags */
352 get_be32(pb); /* component flags mask */
355 return 0; /* nothing left to read */
357 url_fskip(pb, atom.size - (url_ftell(pb) - atom.offset));
361 int ff_mp4_read_descr_len(ByteIOContext *pb)
366 int c = get_byte(pb);
367 len = (len << 7) | (c & 0x7f);
374 int mp4_read_descr(AVFormatContext *fc, ByteIOContext *pb, int *tag)
378 len = ff_mp4_read_descr_len(pb);
379 dprintf(fc, "MPEG4 description: tag=0x%02x len=%d\n", *tag, len);
383 #define MP4ESDescrTag 0x03
384 #define MP4DecConfigDescrTag 0x04
385 #define MP4DecSpecificDescrTag 0x05
387 static const AVCodecTag mp4_audio_types[] = {
388 { CODEC_ID_MP3ON4, AOT_PS }, /* old mp3on4 draft */
389 { CODEC_ID_MP3ON4, AOT_L1 }, /* layer 1 */
390 { CODEC_ID_MP3ON4, AOT_L2 }, /* layer 2 */
391 { CODEC_ID_MP3ON4, AOT_L3 }, /* layer 3 */
392 { CODEC_ID_MP4ALS, AOT_ALS }, /* MPEG-4 ALS */
393 { CODEC_ID_NONE, AOT_NULL },
396 int ff_mov_read_esds(AVFormatContext *fc, ByteIOContext *pb, MOVAtom atom)
401 if (fc->nb_streams < 1)
403 st = fc->streams[fc->nb_streams-1];
405 get_be32(pb); /* version + flags */
406 len = mp4_read_descr(fc, pb, &tag);
407 if (tag == MP4ESDescrTag) {
408 get_be16(pb); /* ID */
409 get_byte(pb); /* priority */
411 get_be16(pb); /* ID */
413 len = mp4_read_descr(fc, pb, &tag);
414 if (tag == MP4DecConfigDescrTag) {
415 int object_type_id = get_byte(pb);
416 get_byte(pb); /* stream type */
417 get_be24(pb); /* buffer size db */
418 get_be32(pb); /* max bitrate */
419 get_be32(pb); /* avg bitrate */
421 st->codec->codec_id= ff_codec_get_id(ff_mp4_obj_type, object_type_id);
422 dprintf(fc, "esds object type id %d\n", object_type_id);
423 len = mp4_read_descr(fc, pb, &tag);
424 if (tag == MP4DecSpecificDescrTag) {
425 dprintf(fc, "Specific MPEG4 header len=%d\n", len);
426 if((uint64_t)len > (1<<30))
428 st->codec->extradata = av_mallocz(len + FF_INPUT_BUFFER_PADDING_SIZE);
429 if (!st->codec->extradata)
430 return AVERROR(ENOMEM);
431 get_buffer(pb, st->codec->extradata, len);
432 st->codec->extradata_size = len;
433 if (st->codec->codec_id == CODEC_ID_AAC) {
434 MPEG4AudioConfig cfg;
435 ff_mpeg4audio_get_config(&cfg, st->codec->extradata,
436 st->codec->extradata_size);
437 if (cfg.chan_config > 7)
439 st->codec->channels = ff_mpeg4audio_channels[cfg.chan_config];
440 if (cfg.object_type == 29 && cfg.sampling_index < 3) // old mp3on4
441 st->codec->sample_rate = ff_mpa_freq_tab[cfg.sampling_index];
443 st->codec->sample_rate = cfg.sample_rate; // ext sample rate ?
444 dprintf(fc, "mp4a config channels %d obj %d ext obj %d "
445 "sample rate %d ext sample rate %d\n", st->codec->channels,
446 cfg.object_type, cfg.ext_object_type,
447 cfg.sample_rate, cfg.ext_sample_rate);
448 if (!(st->codec->codec_id = ff_codec_get_id(mp4_audio_types,
450 st->codec->codec_id = CODEC_ID_AAC;
457 static int mov_read_esds(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
459 return ff_mov_read_esds(c->fc, pb, atom);
462 static int mov_read_pasp(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
464 const int num = get_be32(pb);
465 const int den = get_be32(pb);
468 if (c->fc->nb_streams < 1)
470 st = c->fc->streams[c->fc->nb_streams-1];
473 if ((st->sample_aspect_ratio.den != 1 || st->sample_aspect_ratio.num) && // default
474 (den != st->sample_aspect_ratio.den || num != st->sample_aspect_ratio.num))
475 av_log(c->fc, AV_LOG_WARNING,
476 "sample aspect ratio already set to %d:%d, overriding by 'pasp' atom\n",
477 st->sample_aspect_ratio.num, st->sample_aspect_ratio.den);
478 st->sample_aspect_ratio.num = num;
479 st->sample_aspect_ratio.den = den;
484 /* this atom contains actual media data */
485 static int mov_read_mdat(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
487 if(atom.size == 0) /* wrong one (MP4) */
490 return 0; /* now go for moov */
493 static int mov_read_ftyp(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
495 uint32_t type = get_le32(pb);
497 if (type != MKTAG('q','t',' ',' '))
499 av_log(c->fc, AV_LOG_DEBUG, "ISO: File Type Major Brand: %.4s\n",(char *)&type);
500 get_be32(pb); /* minor version */
501 url_fskip(pb, atom.size - 8);
505 /* this atom should contain all header atoms */
506 static int mov_read_moov(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
508 if (mov_read_default(c, pb, atom) < 0)
510 /* we parsed the 'moov' atom, we can terminate the parsing as soon as we find the 'mdat' */
511 /* so we don't parse the whole file if over a network */
513 return 0; /* now go for mdat */
516 static int mov_read_moof(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
518 c->fragment.moof_offset = url_ftell(pb) - 8;
519 dprintf(c->fc, "moof offset %llx\n", c->fragment.moof_offset);
520 return mov_read_default(c, pb, atom);
523 static int mov_read_mdhd(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
526 MOVStreamContext *sc;
528 char language[4] = {0};
531 if (c->fc->nb_streams < 1)
533 st = c->fc->streams[c->fc->nb_streams-1];
536 version = get_byte(pb);
538 return -1; /* unsupported */
540 get_be24(pb); /* flags */
545 get_be32(pb); /* creation time */
546 get_be32(pb); /* modification time */
549 sc->time_scale = get_be32(pb);
550 st->duration = (version == 1) ? get_be64(pb) : get_be32(pb); /* duration */
552 lang = get_be16(pb); /* language */
553 if (ff_mov_lang_to_iso639(lang, language))
554 av_metadata_set(&st->metadata, "language", language);
555 get_be16(pb); /* quality */
560 static int mov_read_mvhd(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
562 int version = get_byte(pb); /* version */
563 get_be24(pb); /* flags */
569 get_be32(pb); /* creation time */
570 get_be32(pb); /* modification time */
572 c->time_scale = get_be32(pb); /* time scale */
574 dprintf(c->fc, "time scale = %i\n", c->time_scale);
576 c->duration = (version == 1) ? get_be64(pb) : get_be32(pb); /* duration */
577 get_be32(pb); /* preferred scale */
579 get_be16(pb); /* preferred volume */
581 url_fskip(pb, 10); /* reserved */
583 url_fskip(pb, 36); /* display matrix */
585 get_be32(pb); /* preview time */
586 get_be32(pb); /* preview duration */
587 get_be32(pb); /* poster time */
588 get_be32(pb); /* selection time */
589 get_be32(pb); /* selection duration */
590 get_be32(pb); /* current time */
591 get_be32(pb); /* next track ID */
596 static int mov_read_smi(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
600 if (c->fc->nb_streams < 1)
602 st = c->fc->streams[c->fc->nb_streams-1];
604 if((uint64_t)atom.size > (1<<30))
607 // currently SVQ3 decoder expect full STSD header - so let's fake it
608 // this should be fixed and just SMI header should be passed
609 av_free(st->codec->extradata);
610 st->codec->extradata = av_mallocz(atom.size + 0x5a + FF_INPUT_BUFFER_PADDING_SIZE);
611 if (!st->codec->extradata)
612 return AVERROR(ENOMEM);
613 st->codec->extradata_size = 0x5a + atom.size;
614 memcpy(st->codec->extradata, "SVQ3", 4); // fake
615 get_buffer(pb, st->codec->extradata + 0x5a, atom.size);
616 dprintf(c->fc, "Reading SMI %"PRId64" %s\n", atom.size, st->codec->extradata + 0x5a);
620 static int mov_read_enda(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
625 if (c->fc->nb_streams < 1)
627 st = c->fc->streams[c->fc->nb_streams-1];
629 little_endian = get_be16(pb);
630 dprintf(c->fc, "enda %d\n", little_endian);
631 if (little_endian == 1) {
632 switch (st->codec->codec_id) {
633 case CODEC_ID_PCM_S24BE:
634 st->codec->codec_id = CODEC_ID_PCM_S24LE;
636 case CODEC_ID_PCM_S32BE:
637 st->codec->codec_id = CODEC_ID_PCM_S32LE;
639 case CODEC_ID_PCM_F32BE:
640 st->codec->codec_id = CODEC_ID_PCM_F32LE;
642 case CODEC_ID_PCM_F64BE:
643 st->codec->codec_id = CODEC_ID_PCM_F64LE;
652 /* FIXME modify qdm2/svq3/h264 decoders to take full atom as extradata */
653 static int mov_read_extradata(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
659 if (c->fc->nb_streams < 1) // will happen with jp2 files
661 st= c->fc->streams[c->fc->nb_streams-1];
662 size= (uint64_t)st->codec->extradata_size + atom.size + 8 + FF_INPUT_BUFFER_PADDING_SIZE;
663 if(size > INT_MAX || (uint64_t)atom.size > INT_MAX)
665 buf= av_realloc(st->codec->extradata, size);
668 st->codec->extradata= buf;
669 buf+= st->codec->extradata_size;
670 st->codec->extradata_size= size - FF_INPUT_BUFFER_PADDING_SIZE;
671 AV_WB32( buf , atom.size + 8);
672 AV_WL32( buf + 4, atom.type);
673 get_buffer(pb, buf + 8, atom.size);
677 static int mov_read_wave(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
681 if (c->fc->nb_streams < 1)
683 st = c->fc->streams[c->fc->nb_streams-1];
685 if((uint64_t)atom.size > (1<<30))
688 if (st->codec->codec_id == CODEC_ID_QDM2) {
689 // pass all frma atom to codec, needed at least for QDM2
690 av_free(st->codec->extradata);
691 st->codec->extradata = av_mallocz(atom.size + FF_INPUT_BUFFER_PADDING_SIZE);
692 if (!st->codec->extradata)
693 return AVERROR(ENOMEM);
694 st->codec->extradata_size = atom.size;
695 get_buffer(pb, st->codec->extradata, atom.size);
696 } else if (atom.size > 8) { /* to read frma, esds atoms */
697 if (mov_read_default(c, pb, atom) < 0)
700 url_fskip(pb, atom.size);
705 * This function reads atom content and puts data in extradata without tag
706 * nor size unlike mov_read_extradata.
708 static int mov_read_glbl(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
712 if (c->fc->nb_streams < 1)
714 st = c->fc->streams[c->fc->nb_streams-1];
716 if((uint64_t)atom.size > (1<<30))
719 av_free(st->codec->extradata);
720 st->codec->extradata = av_mallocz(atom.size + FF_INPUT_BUFFER_PADDING_SIZE);
721 if (!st->codec->extradata)
722 return AVERROR(ENOMEM);
723 st->codec->extradata_size = atom.size;
724 get_buffer(pb, st->codec->extradata, atom.size);
728 static int mov_read_stco(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
731 MOVStreamContext *sc;
732 unsigned int i, entries;
734 if (c->fc->nb_streams < 1)
736 st = c->fc->streams[c->fc->nb_streams-1];
739 get_byte(pb); /* version */
740 get_be24(pb); /* flags */
742 entries = get_be32(pb);
744 if(entries >= UINT_MAX/sizeof(int64_t))
747 sc->chunk_offsets = av_malloc(entries * sizeof(int64_t));
748 if (!sc->chunk_offsets)
749 return AVERROR(ENOMEM);
750 sc->chunk_count = entries;
752 if (atom.type == MKTAG('s','t','c','o'))
753 for(i=0; i<entries; i++)
754 sc->chunk_offsets[i] = get_be32(pb);
755 else if (atom.type == MKTAG('c','o','6','4'))
756 for(i=0; i<entries; i++)
757 sc->chunk_offsets[i] = get_be64(pb);
765 * Compute codec id for 'lpcm' tag.
766 * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
768 enum CodecID ff_mov_get_lpcm_codec_id(int bps, int flags)
770 if (flags & 1) { // floating point
771 if (flags & 2) { // big endian
772 if (bps == 32) return CODEC_ID_PCM_F32BE;
773 else if (bps == 64) return CODEC_ID_PCM_F64BE;
775 if (bps == 32) return CODEC_ID_PCM_F32LE;
776 else if (bps == 64) return CODEC_ID_PCM_F64LE;
782 if (flags & 4) return CODEC_ID_PCM_S8;
783 else return CODEC_ID_PCM_U8;
784 else if (bps == 16) return CODEC_ID_PCM_S16BE;
785 else if (bps == 24) return CODEC_ID_PCM_S24BE;
786 else if (bps == 32) return CODEC_ID_PCM_S32BE;
789 if (flags & 4) return CODEC_ID_PCM_S8;
790 else return CODEC_ID_PCM_U8;
791 else if (bps == 16) return CODEC_ID_PCM_S16LE;
792 else if (bps == 24) return CODEC_ID_PCM_S24LE;
793 else if (bps == 32) return CODEC_ID_PCM_S32LE;
796 return CODEC_ID_NONE;
799 static int mov_read_stsd(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
802 MOVStreamContext *sc;
803 int j, entries, pseudo_stream_id;
805 if (c->fc->nb_streams < 1)
807 st = c->fc->streams[c->fc->nb_streams-1];
810 get_byte(pb); /* version */
811 get_be24(pb); /* flags */
813 entries = get_be32(pb);
815 for(pseudo_stream_id=0; pseudo_stream_id<entries; pseudo_stream_id++) {
816 //Parsing Sample description table
819 MOVAtom a = { 0, 0, 0 };
820 int64_t start_pos = url_ftell(pb);
821 int size = get_be32(pb); /* size */
822 uint32_t format = get_le32(pb); /* data format */
825 get_be32(pb); /* reserved */
826 get_be16(pb); /* reserved */
827 dref_id = get_be16(pb);
830 if (st->codec->codec_tag &&
831 st->codec->codec_tag != format &&
832 (c->fc->video_codec_id ? ff_codec_get_id(codec_movvideo_tags, format) != c->fc->video_codec_id
833 : st->codec->codec_tag != MKTAG('j','p','e','g'))
835 /* Multiple fourcc, we skip JPEG. This is not correct, we should
836 * export it as a separate AVStream but this needs a few changes
837 * in the MOV demuxer, patch welcome. */
838 av_log(c->fc, AV_LOG_WARNING, "multiple fourcc not supported\n");
839 url_fskip(pb, size - (url_ftell(pb) - start_pos));
842 sc->pseudo_stream_id = st->codec->codec_tag ? -1 : pseudo_stream_id;
843 sc->dref_id= dref_id;
845 st->codec->codec_tag = format;
846 id = ff_codec_get_id(codec_movaudio_tags, format);
847 if (id<=0 && ((format&0xFFFF) == 'm'+('s'<<8) || (format&0xFFFF) == 'T'+('S'<<8)))
848 id = ff_codec_get_id(ff_codec_wav_tags, bswap_32(format)&0xFFFF);
850 if (st->codec->codec_type != CODEC_TYPE_VIDEO && id > 0) {
851 st->codec->codec_type = CODEC_TYPE_AUDIO;
852 } else if (st->codec->codec_type != CODEC_TYPE_AUDIO && /* do not overwrite codec type */
853 format && format != MKTAG('m','p','4','s')) { /* skip old asf mpeg4 tag */
854 id = ff_codec_get_id(codec_movvideo_tags, format);
856 id = ff_codec_get_id(ff_codec_bmp_tags, format);
858 st->codec->codec_type = CODEC_TYPE_VIDEO;
859 else if(st->codec->codec_type == CODEC_TYPE_DATA){
860 id = ff_codec_get_id(ff_codec_movsubtitle_tags, format);
862 st->codec->codec_type = CODEC_TYPE_SUBTITLE;
866 dprintf(c->fc, "size=%d 4CC= %c%c%c%c codec_type=%d\n", size,
867 (format >> 0) & 0xff, (format >> 8) & 0xff, (format >> 16) & 0xff,
868 (format >> 24) & 0xff, st->codec->codec_type);
870 if(st->codec->codec_type==CODEC_TYPE_VIDEO) {
871 uint8_t codec_name[32];
872 unsigned int color_depth;
875 st->codec->codec_id = id;
876 get_be16(pb); /* version */
877 get_be16(pb); /* revision level */
878 get_be32(pb); /* vendor */
879 get_be32(pb); /* temporal quality */
880 get_be32(pb); /* spatial quality */
882 st->codec->width = get_be16(pb); /* width */
883 st->codec->height = get_be16(pb); /* height */
885 get_be32(pb); /* horiz resolution */
886 get_be32(pb); /* vert resolution */
887 get_be32(pb); /* data size, always 0 */
888 get_be16(pb); /* frames per samples */
890 get_buffer(pb, codec_name, 32); /* codec name, pascal string */
891 if (codec_name[0] <= 31) {
892 memcpy(st->codec->codec_name, &codec_name[1],codec_name[0]);
893 st->codec->codec_name[codec_name[0]] = 0;
896 st->codec->bits_per_coded_sample = get_be16(pb); /* depth */
897 st->codec->color_table_id = get_be16(pb); /* colortable id */
898 dprintf(c->fc, "depth %d, ctab id %d\n",
899 st->codec->bits_per_coded_sample, st->codec->color_table_id);
900 /* figure out the palette situation */
901 color_depth = st->codec->bits_per_coded_sample & 0x1F;
902 color_greyscale = st->codec->bits_per_coded_sample & 0x20;
904 /* if the depth is 2, 4, or 8 bpp, file is palettized */
905 if ((color_depth == 2) || (color_depth == 4) ||
906 (color_depth == 8)) {
907 /* for palette traversal */
908 unsigned int color_start, color_count, color_end;
909 unsigned char r, g, b;
911 st->codec->palctrl = av_malloc(sizeof(*st->codec->palctrl));
912 if (color_greyscale) {
913 int color_index, color_dec;
914 /* compute the greyscale palette */
915 st->codec->bits_per_coded_sample = color_depth;
916 color_count = 1 << color_depth;
918 color_dec = 256 / (color_count - 1);
919 for (j = 0; j < color_count; j++) {
920 r = g = b = color_index;
921 st->codec->palctrl->palette[j] =
922 (r << 16) | (g << 8) | (b);
923 color_index -= color_dec;
927 } else if (st->codec->color_table_id) {
928 const uint8_t *color_table;
929 /* if flag bit 3 is set, use the default palette */
930 color_count = 1 << color_depth;
931 if (color_depth == 2)
932 color_table = ff_qt_default_palette_4;
933 else if (color_depth == 4)
934 color_table = ff_qt_default_palette_16;
936 color_table = ff_qt_default_palette_256;
938 for (j = 0; j < color_count; j++) {
939 r = color_table[j * 3 + 0];
940 g = color_table[j * 3 + 1];
941 b = color_table[j * 3 + 2];
942 st->codec->palctrl->palette[j] =
943 (r << 16) | (g << 8) | (b);
946 /* load the palette from the file */
947 color_start = get_be32(pb);
948 color_count = get_be16(pb);
949 color_end = get_be16(pb);
950 if ((color_start <= 255) &&
951 (color_end <= 255)) {
952 for (j = color_start; j <= color_end; j++) {
953 /* each R, G, or B component is 16 bits;
954 * only use the top 8 bits; skip alpha bytes
964 st->codec->palctrl->palette[j] =
965 (r << 16) | (g << 8) | (b);
969 st->codec->palctrl->palette_changed = 1;
971 } else if(st->codec->codec_type==CODEC_TYPE_AUDIO) {
972 int bits_per_sample, flags;
973 uint16_t version = get_be16(pb);
975 st->codec->codec_id = id;
976 get_be16(pb); /* revision level */
977 get_be32(pb); /* vendor */
979 st->codec->channels = get_be16(pb); /* channel count */
980 dprintf(c->fc, "audio channels %d\n", st->codec->channels);
981 st->codec->bits_per_coded_sample = get_be16(pb); /* sample size */
983 sc->audio_cid = get_be16(pb);
984 get_be16(pb); /* packet size = 0 */
986 st->codec->sample_rate = ((get_be32(pb) >> 16));
988 //Read QT version 1 fields. In version 0 these do not exist.
989 dprintf(c->fc, "version =%d, isom =%d\n",version,c->isom);
992 sc->samples_per_frame = get_be32(pb);
993 get_be32(pb); /* bytes per packet */
994 sc->bytes_per_frame = get_be32(pb);
995 get_be32(pb); /* bytes per sample */
996 } else if(version==2) {
997 get_be32(pb); /* sizeof struct only */
998 st->codec->sample_rate = av_int2dbl(get_be64(pb)); /* float 64 */
999 st->codec->channels = get_be32(pb);
1000 get_be32(pb); /* always 0x7F000000 */
1001 st->codec->bits_per_coded_sample = get_be32(pb); /* bits per channel if sound is uncompressed */
1002 flags = get_be32(pb); /* lcpm format specific flag */
1003 sc->bytes_per_frame = get_be32(pb); /* bytes per audio packet if constant */
1004 sc->samples_per_frame = get_be32(pb); /* lpcm frames per audio packet if constant */
1005 if (format == MKTAG('l','p','c','m'))
1006 st->codec->codec_id = ff_mov_get_lpcm_codec_id(st->codec->bits_per_coded_sample, flags);
1010 switch (st->codec->codec_id) {
1011 case CODEC_ID_PCM_S8:
1012 case CODEC_ID_PCM_U8:
1013 if (st->codec->bits_per_coded_sample == 16)
1014 st->codec->codec_id = CODEC_ID_PCM_S16BE;
1016 case CODEC_ID_PCM_S16LE:
1017 case CODEC_ID_PCM_S16BE:
1018 if (st->codec->bits_per_coded_sample == 8)
1019 st->codec->codec_id = CODEC_ID_PCM_S8;
1020 else if (st->codec->bits_per_coded_sample == 24)
1021 st->codec->codec_id =
1022 st->codec->codec_id == CODEC_ID_PCM_S16BE ?
1023 CODEC_ID_PCM_S24BE : CODEC_ID_PCM_S24LE;
1025 /* set values for old format before stsd version 1 appeared */
1026 case CODEC_ID_MACE3:
1027 sc->samples_per_frame = 6;
1028 sc->bytes_per_frame = 2*st->codec->channels;
1030 case CODEC_ID_MACE6:
1031 sc->samples_per_frame = 6;
1032 sc->bytes_per_frame = 1*st->codec->channels;
1034 case CODEC_ID_ADPCM_IMA_QT:
1035 sc->samples_per_frame = 64;
1036 sc->bytes_per_frame = 34*st->codec->channels;
1039 sc->samples_per_frame = 160;
1040 sc->bytes_per_frame = 33;
1046 bits_per_sample = av_get_bits_per_sample(st->codec->codec_id);
1047 if (bits_per_sample) {
1048 st->codec->bits_per_coded_sample = bits_per_sample;
1049 sc->sample_size = (bits_per_sample >> 3) * st->codec->channels;
1051 } else if(st->codec->codec_type==CODEC_TYPE_SUBTITLE){
1052 // ttxt stsd contains display flags, justification, background
1053 // color, fonts, and default styles, so fake an atom to read it
1054 MOVAtom fake_atom = { .size = size - (url_ftell(pb) - start_pos) };
1055 if (format != AV_RL32("mp4s")) // mp4s contains a regular esds atom
1056 mov_read_glbl(c, pb, fake_atom);
1057 st->codec->codec_id= id;
1058 st->codec->width = sc->width;
1059 st->codec->height = sc->height;
1061 /* other codec type, just skip (rtp, mp4s, tmcd ...) */
1062 url_fskip(pb, size - (url_ftell(pb) - start_pos));
1064 /* this will read extra atoms at the end (wave, alac, damr, avcC, SMI ...) */
1065 a.size = size - (url_ftell(pb) - start_pos);
1067 if (mov_read_default(c, pb, a) < 0)
1069 } else if (a.size > 0)
1070 url_fskip(pb, a.size);
1073 if(st->codec->codec_type==CODEC_TYPE_AUDIO && st->codec->sample_rate==0 && sc->time_scale>1)
1074 st->codec->sample_rate= sc->time_scale;
1076 /* special codec parameters handling */
1077 switch (st->codec->codec_id) {
1078 #if CONFIG_DV_DEMUXER
1079 case CODEC_ID_DVAUDIO:
1080 c->dv_fctx = avformat_alloc_context();
1081 c->dv_demux = dv_init_demux(c->dv_fctx);
1083 av_log(c->fc, AV_LOG_ERROR, "dv demux context init error\n");
1086 sc->dv_audio_container = 1;
1087 st->codec->codec_id = CODEC_ID_PCM_S16LE;
1090 /* no ifdef since parameters are always those */
1091 case CODEC_ID_QCELP:
1092 // force sample rate for qcelp when not stored in mov
1093 if (st->codec->codec_tag != MKTAG('Q','c','l','p'))
1094 st->codec->sample_rate = 8000;
1095 st->codec->frame_size= 160;
1096 st->codec->channels= 1; /* really needed */
1098 case CODEC_ID_AMR_NB:
1099 case CODEC_ID_AMR_WB:
1100 st->codec->frame_size= sc->samples_per_frame;
1101 st->codec->channels= 1; /* really needed */
1102 /* force sample rate for amr, stsd in 3gp does not store sample rate */
1103 if (st->codec->codec_id == CODEC_ID_AMR_NB)
1104 st->codec->sample_rate = 8000;
1105 else if (st->codec->codec_id == CODEC_ID_AMR_WB)
1106 st->codec->sample_rate = 16000;
1110 st->codec->codec_type = CODEC_TYPE_AUDIO; /* force type after stsd for m1a hdlr */
1111 st->need_parsing = AVSTREAM_PARSE_FULL;
1114 case CODEC_ID_ADPCM_MS:
1115 case CODEC_ID_ADPCM_IMA_WAV:
1116 st->codec->block_align = sc->bytes_per_frame;
1119 if (st->codec->extradata_size == 36) {
1120 st->codec->frame_size = AV_RB32(st->codec->extradata+12);
1121 st->codec->channels = AV_RB8 (st->codec->extradata+21);
1131 static int mov_read_stsc(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
1134 MOVStreamContext *sc;
1135 unsigned int i, entries;
1137 if (c->fc->nb_streams < 1)
1139 st = c->fc->streams[c->fc->nb_streams-1];
1142 get_byte(pb); /* version */
1143 get_be24(pb); /* flags */
1145 entries = get_be32(pb);
1147 dprintf(c->fc, "track[%i].stsc.entries = %i\n", c->fc->nb_streams-1, entries);
1149 if(entries >= UINT_MAX / sizeof(*sc->stsc_data))
1151 sc->stsc_data = av_malloc(entries * sizeof(*sc->stsc_data));
1153 return AVERROR(ENOMEM);
1154 sc->stsc_count = entries;
1156 for(i=0; i<entries; i++) {
1157 sc->stsc_data[i].first = get_be32(pb);
1158 sc->stsc_data[i].count = get_be32(pb);
1159 sc->stsc_data[i].id = get_be32(pb);
1164 static int mov_read_stps(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
1167 MOVStreamContext *sc;
1168 unsigned i, entries;
1170 if (c->fc->nb_streams < 1)
1172 st = c->fc->streams[c->fc->nb_streams-1];
1175 get_be32(pb); // version + flags
1177 entries = get_be32(pb);
1178 if (entries >= UINT_MAX / sizeof(*sc->stps_data))
1180 sc->stps_data = av_malloc(entries * sizeof(*sc->stps_data));
1182 return AVERROR(ENOMEM);
1183 sc->stps_count = entries;
1185 for (i = 0; i < entries; i++) {
1186 sc->stps_data[i] = get_be32(pb);
1187 //dprintf(c->fc, "stps %d\n", sc->stps_data[i]);
1193 static int mov_read_stss(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
1196 MOVStreamContext *sc;
1197 unsigned int i, entries;
1199 if (c->fc->nb_streams < 1)
1201 st = c->fc->streams[c->fc->nb_streams-1];
1204 get_byte(pb); /* version */
1205 get_be24(pb); /* flags */
1207 entries = get_be32(pb);
1209 dprintf(c->fc, "keyframe_count = %d\n", entries);
1211 if(entries >= UINT_MAX / sizeof(int))
1213 sc->keyframes = av_malloc(entries * sizeof(int));
1215 return AVERROR(ENOMEM);
1216 sc->keyframe_count = entries;
1218 for(i=0; i<entries; i++) {
1219 sc->keyframes[i] = get_be32(pb);
1220 //dprintf(c->fc, "keyframes[]=%d\n", sc->keyframes[i]);
1225 static int mov_read_stsz(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
1228 MOVStreamContext *sc;
1229 unsigned int i, entries, sample_size, field_size, num_bytes;
1233 if (c->fc->nb_streams < 1)
1235 st = c->fc->streams[c->fc->nb_streams-1];
1238 get_byte(pb); /* version */
1239 get_be24(pb); /* flags */
1241 if (atom.type == MKTAG('s','t','s','z')) {
1242 sample_size = get_be32(pb);
1243 if (!sc->sample_size) /* do not overwrite value computed in stsd */
1244 sc->sample_size = sample_size;
1248 get_be24(pb); /* reserved */
1249 field_size = get_byte(pb);
1251 entries = get_be32(pb);
1253 dprintf(c->fc, "sample_size = %d sample_count = %d\n", sc->sample_size, entries);
1255 sc->sample_count = entries;
1259 if (field_size != 4 && field_size != 8 && field_size != 16 && field_size != 32) {
1260 av_log(c->fc, AV_LOG_ERROR, "Invalid sample field size %d\n", field_size);
1264 if (entries >= UINT_MAX / sizeof(int) || entries >= (UINT_MAX - 4) / field_size)
1266 sc->sample_sizes = av_malloc(entries * sizeof(int));
1267 if (!sc->sample_sizes)
1268 return AVERROR(ENOMEM);
1270 num_bytes = (entries*field_size+4)>>3;
1272 buf = av_malloc(num_bytes+FF_INPUT_BUFFER_PADDING_SIZE);
1274 av_freep(&sc->sample_sizes);
1275 return AVERROR(ENOMEM);
1278 if (get_buffer(pb, buf, num_bytes) < num_bytes) {
1279 av_freep(&sc->sample_sizes);
1284 init_get_bits(&gb, buf, 8*num_bytes);
1286 for(i=0; i<entries; i++)
1287 sc->sample_sizes[i] = get_bits_long(&gb, field_size);
1293 static int mov_read_stts(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
1296 MOVStreamContext *sc;
1297 unsigned int i, entries;
1299 int64_t total_sample_count=0;
1301 if (c->fc->nb_streams < 1)
1303 st = c->fc->streams[c->fc->nb_streams-1];
1306 get_byte(pb); /* version */
1307 get_be24(pb); /* flags */
1308 entries = get_be32(pb);
1310 dprintf(c->fc, "track[%i].stts.entries = %i\n", c->fc->nb_streams-1, entries);
1312 if(entries >= UINT_MAX / sizeof(*sc->stts_data))
1314 sc->stts_data = av_malloc(entries * sizeof(*sc->stts_data));
1316 return AVERROR(ENOMEM);
1317 sc->stts_count = entries;
1319 for(i=0; i<entries; i++) {
1320 int sample_duration;
1323 sample_count=get_be32(pb);
1324 sample_duration = get_be32(pb);
1325 sc->stts_data[i].count= sample_count;
1326 sc->stts_data[i].duration= sample_duration;
1328 dprintf(c->fc, "sample_count=%d, sample_duration=%d\n",sample_count,sample_duration);
1330 duration+=(int64_t)sample_duration*sample_count;
1331 total_sample_count+=sample_count;
1334 st->nb_frames= total_sample_count;
1336 st->duration= duration;
1340 static int mov_read_cslg(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
1343 MOVStreamContext *sc;
1345 if (c->fc->nb_streams < 1)
1347 st = c->fc->streams[c->fc->nb_streams-1];
1350 get_be32(pb); // version + flags
1352 sc->dts_shift = get_be32(pb);
1353 dprintf(c->fc, "dts shift %d\n", sc->dts_shift);
1355 get_be32(pb); // least dts to pts delta
1356 get_be32(pb); // greatest dts to pts delta
1357 get_be32(pb); // pts start
1358 get_be32(pb); // pts end
1363 static int mov_read_ctts(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
1366 MOVStreamContext *sc;
1367 unsigned int i, entries;
1369 if (c->fc->nb_streams < 1)
1371 st = c->fc->streams[c->fc->nb_streams-1];
1374 get_byte(pb); /* version */
1375 get_be24(pb); /* flags */
1376 entries = get_be32(pb);
1378 dprintf(c->fc, "track[%i].ctts.entries = %i\n", c->fc->nb_streams-1, entries);
1380 if(entries >= UINT_MAX / sizeof(*sc->ctts_data))
1382 sc->ctts_data = av_malloc(entries * sizeof(*sc->ctts_data));
1384 return AVERROR(ENOMEM);
1385 sc->ctts_count = entries;
1387 for(i=0; i<entries; i++) {
1388 int count =get_be32(pb);
1389 int duration =get_be32(pb);
1391 sc->ctts_data[i].count = count;
1392 sc->ctts_data[i].duration= duration;
1397 static void mov_build_index(MOVContext *mov, AVStream *st)
1399 MOVStreamContext *sc = st->priv_data;
1400 int64_t current_offset;
1401 int64_t current_dts = 0;
1402 unsigned int stts_index = 0;
1403 unsigned int stsc_index = 0;
1404 unsigned int stss_index = 0;
1405 unsigned int stps_index = 0;
1408 /* adjust first dts according to edit list */
1409 if (sc->time_offset) {
1410 int rescaled = sc->time_offset < 0 ? av_rescale(sc->time_offset, sc->time_scale, mov->time_scale) : sc->time_offset;
1411 current_dts = -rescaled;
1412 if (sc->ctts_data && sc->ctts_data[0].duration / sc->stts_data[0].duration > 16) {
1413 /* more than 16 frames delay, dts are likely wrong
1414 this happens with files created by iMovie */
1416 st->codec->has_b_frames = 1;
1420 /* only use old uncompressed audio chunk demuxing when stts specifies it */
1421 if (!(st->codec->codec_type == CODEC_TYPE_AUDIO &&
1422 sc->stts_count == 1 && sc->stts_data[0].duration == 1)) {
1423 unsigned int current_sample = 0;
1424 unsigned int stts_sample = 0;
1425 unsigned int sample_size;
1426 unsigned int distance = 0;
1427 int key_off = sc->keyframes && sc->keyframes[0] == 1;
1429 current_dts -= sc->dts_shift;
1431 st->nb_frames = sc->sample_count;
1432 for (i = 0; i < sc->chunk_count; i++) {
1433 current_offset = sc->chunk_offsets[i];
1434 if (stsc_index + 1 < sc->stsc_count &&
1435 i + 1 == sc->stsc_data[stsc_index + 1].first)
1437 for (j = 0; j < sc->stsc_data[stsc_index].count; j++) {
1439 if (current_sample >= sc->sample_count) {
1440 av_log(mov->fc, AV_LOG_ERROR, "wrong sample count\n");
1444 if (!sc->keyframe_count || current_sample+key_off == sc->keyframes[stss_index]) {
1446 if (stss_index + 1 < sc->keyframe_count)
1448 } else if (sc->stps_count && current_sample+key_off == sc->stps_data[stps_index]) {
1450 if (stps_index + 1 < sc->stps_count)
1455 sample_size = sc->sample_size > 0 ? sc->sample_size : sc->sample_sizes[current_sample];
1456 if(sc->pseudo_stream_id == -1 ||
1457 sc->stsc_data[stsc_index].id - 1 == sc->pseudo_stream_id) {
1458 av_add_index_entry(st, current_offset, current_dts, sample_size, distance,
1459 keyframe ? AVINDEX_KEYFRAME : 0);
1460 dprintf(mov->fc, "AVIndex stream %d, sample %d, offset %"PRIx64", dts %"PRId64", "
1461 "size %d, distance %d, keyframe %d\n", st->index, current_sample,
1462 current_offset, current_dts, sample_size, distance, keyframe);
1465 current_offset += sample_size;
1466 current_dts += sc->stts_data[stts_index].duration;
1470 if (stts_index + 1 < sc->stts_count && stts_sample == sc->stts_data[stts_index].count) {
1477 for (i = 0; i < sc->chunk_count; i++) {
1478 unsigned chunk_samples;
1480 current_offset = sc->chunk_offsets[i];
1481 if (stsc_index + 1 < sc->stsc_count &&
1482 i + 1 == sc->stsc_data[stsc_index + 1].first)
1484 chunk_samples = sc->stsc_data[stsc_index].count;
1486 if (sc->samples_per_frame && chunk_samples % sc->samples_per_frame) {
1487 av_log(mov->fc, AV_LOG_ERROR, "error unaligned chunk\n");
1491 while (chunk_samples > 0) {
1492 unsigned size, samples;
1494 if (sc->samples_per_frame >= 160) { // gsm
1495 samples = sc->samples_per_frame;
1496 size = sc->bytes_per_frame;
1498 if (sc->samples_per_frame > 1) {
1499 samples = FFMIN((1024 / sc->samples_per_frame)*
1500 sc->samples_per_frame, chunk_samples);
1501 size = (samples / sc->samples_per_frame) * sc->bytes_per_frame;
1503 samples = FFMIN(1024, chunk_samples);
1504 size = samples * sc->sample_size;
1508 av_add_index_entry(st, current_offset, current_dts, size, 0, AVINDEX_KEYFRAME);
1509 dprintf(mov->fc, "AVIndex stream %d, chunk %d, offset %"PRIx64", dts %"PRId64", "
1510 "size %d, duration %d\n", st->index, i, current_offset, current_dts,
1513 current_offset += size;
1514 current_dts += samples;
1515 chunk_samples -= samples;
1521 static int mov_read_trak(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
1524 MOVStreamContext *sc;
1527 st = av_new_stream(c->fc, c->fc->nb_streams);
1528 if (!st) return AVERROR(ENOMEM);
1529 sc = av_mallocz(sizeof(MOVStreamContext));
1530 if (!sc) return AVERROR(ENOMEM);
1533 st->codec->codec_type = CODEC_TYPE_DATA;
1534 sc->ffindex = st->index;
1536 if ((ret = mov_read_default(c, pb, atom)) < 0)
1540 if (sc->chunk_count && (!sc->stts_count || !sc->stsc_count ||
1541 (!sc->sample_size && !sc->sample_count))) {
1542 av_log(c->fc, AV_LOG_ERROR, "stream %d, missing mandatory atoms, broken header\n",
1547 if (!sc->time_scale)
1548 sc->time_scale = c->time_scale;
1550 av_set_pts_info(st, 64, 1, sc->time_scale);
1552 if (st->codec->codec_type == CODEC_TYPE_AUDIO &&
1553 !st->codec->frame_size && sc->stts_count == 1) {
1554 st->codec->frame_size = av_rescale(sc->stts_data[0].duration,
1555 st->codec->sample_rate, sc->time_scale);
1556 dprintf(c->fc, "frame size %d\n", st->codec->frame_size);
1559 mov_build_index(c, st);
1561 if (sc->dref_id-1 < sc->drefs_count && sc->drefs[sc->dref_id-1].path) {
1562 if (url_fopen(&sc->pb, sc->drefs[sc->dref_id-1].path, URL_RDONLY) < 0)
1563 av_log(c->fc, AV_LOG_ERROR, "stream %d, error opening file %s: %s\n",
1564 st->index, sc->drefs[sc->dref_id-1].path, strerror(errno));
1568 switch (st->codec->codec_id) {
1569 #if CONFIG_H261_DECODER
1572 #if CONFIG_H263_DECODER
1575 #if CONFIG_H264_DECODER
1578 #if CONFIG_MPEG4_DECODER
1579 case CODEC_ID_MPEG4:
1581 st->codec->width = 0; /* let decoder init width/height */
1582 st->codec->height= 0;
1586 /* Do not need those anymore. */
1587 av_freep(&sc->chunk_offsets);
1588 av_freep(&sc->stsc_data);
1589 av_freep(&sc->sample_sizes);
1590 av_freep(&sc->keyframes);
1591 av_freep(&sc->stts_data);
1592 av_freep(&sc->stps_data);
1597 static int mov_read_ilst(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
1600 c->itunes_metadata = 1;
1601 ret = mov_read_default(c, pb, atom);
1602 c->itunes_metadata = 0;
1606 static int mov_read_meta(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
1608 while (atom.size > 8) {
1609 uint32_t tag = get_le32(pb);
1611 if (tag == MKTAG('h','d','l','r')) {
1612 url_fseek(pb, -8, SEEK_CUR);
1614 return mov_read_default(c, pb, atom);
1620 static int mov_read_tkhd(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
1625 int64_t disp_transform[2];
1626 int display_matrix[3][2];
1628 MOVStreamContext *sc;
1631 if (c->fc->nb_streams < 1)
1633 st = c->fc->streams[c->fc->nb_streams-1];
1636 version = get_byte(pb);
1637 get_be24(pb); /* flags */
1639 MOV_TRACK_ENABLED 0x0001
1640 MOV_TRACK_IN_MOVIE 0x0002
1641 MOV_TRACK_IN_PREVIEW 0x0004
1642 MOV_TRACK_IN_POSTER 0x0008
1649 get_be32(pb); /* creation time */
1650 get_be32(pb); /* modification time */
1652 st->id = (int)get_be32(pb); /* track id (NOT 0 !)*/
1653 get_be32(pb); /* reserved */
1655 /* highlevel (considering edits) duration in movie timebase */
1656 (version == 1) ? get_be64(pb) : get_be32(pb);
1657 get_be32(pb); /* reserved */
1658 get_be32(pb); /* reserved */
1660 get_be16(pb); /* layer */
1661 get_be16(pb); /* alternate group */
1662 get_be16(pb); /* volume */
1663 get_be16(pb); /* reserved */
1665 //read in the display matrix (outlined in ISO 14496-12, Section 6.2.2)
1666 // they're kept in fixed point format through all calculations
1667 // ignore u,v,z b/c we don't need the scale factor to calc aspect ratio
1668 for (i = 0; i < 3; i++) {
1669 display_matrix[i][0] = get_be32(pb); // 16.16 fixed point
1670 display_matrix[i][1] = get_be32(pb); // 16.16 fixed point
1671 get_be32(pb); // 2.30 fixed point (not used)
1674 width = get_be32(pb); // 16.16 fixed point track width
1675 height = get_be32(pb); // 16.16 fixed point track height
1676 sc->width = width >> 16;
1677 sc->height = height >> 16;
1679 // transform the display width/height according to the matrix
1680 // skip this if the display matrix is the default identity matrix
1681 // or if it is rotating the picture, ex iPhone 3GS
1682 // to keep the same scale, use [width height 1<<16]
1683 if (width && height &&
1684 ((display_matrix[0][0] != 65536 ||
1685 display_matrix[1][1] != 65536) &&
1686 !display_matrix[0][1] &&
1687 !display_matrix[1][0] &&
1688 !display_matrix[2][0] && !display_matrix[2][1])) {
1689 for (i = 0; i < 2; i++)
1691 (int64_t) width * display_matrix[0][i] +
1692 (int64_t) height * display_matrix[1][i] +
1693 ((int64_t) display_matrix[2][i] << 16);
1695 //sample aspect ratio is new width/height divided by old width/height
1696 st->sample_aspect_ratio = av_d2q(
1697 ((double) disp_transform[0] * height) /
1698 ((double) disp_transform[1] * width), INT_MAX);
1703 static int mov_read_tfhd(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
1705 MOVFragment *frag = &c->fragment;
1706 MOVTrackExt *trex = NULL;
1707 int flags, track_id, i;
1709 get_byte(pb); /* version */
1710 flags = get_be24(pb);
1712 track_id = get_be32(pb);
1715 frag->track_id = track_id;
1716 for (i = 0; i < c->trex_count; i++)
1717 if (c->trex_data[i].track_id == frag->track_id) {
1718 trex = &c->trex_data[i];
1722 av_log(c->fc, AV_LOG_ERROR, "could not find corresponding trex\n");
1726 if (flags & 0x01) frag->base_data_offset = get_be64(pb);
1727 else frag->base_data_offset = frag->moof_offset;
1728 if (flags & 0x02) frag->stsd_id = get_be32(pb);
1729 else frag->stsd_id = trex->stsd_id;
1731 frag->duration = flags & 0x08 ? get_be32(pb) : trex->duration;
1732 frag->size = flags & 0x10 ? get_be32(pb) : trex->size;
1733 frag->flags = flags & 0x20 ? get_be32(pb) : trex->flags;
1734 dprintf(c->fc, "frag flags 0x%x\n", frag->flags);
1738 static int mov_read_trex(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
1742 if ((uint64_t)c->trex_count+1 >= UINT_MAX / sizeof(*c->trex_data))
1744 trex = av_realloc(c->trex_data, (c->trex_count+1)*sizeof(*c->trex_data));
1746 return AVERROR(ENOMEM);
1747 c->trex_data = trex;
1748 trex = &c->trex_data[c->trex_count++];
1749 get_byte(pb); /* version */
1750 get_be24(pb); /* flags */
1751 trex->track_id = get_be32(pb);
1752 trex->stsd_id = get_be32(pb);
1753 trex->duration = get_be32(pb);
1754 trex->size = get_be32(pb);
1755 trex->flags = get_be32(pb);
1759 static int mov_read_trun(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
1761 MOVFragment *frag = &c->fragment;
1762 AVStream *st = NULL;
1763 MOVStreamContext *sc;
1766 int data_offset = 0;
1767 unsigned entries, first_sample_flags = frag->flags;
1768 int flags, distance, i;
1770 for (i = 0; i < c->fc->nb_streams; i++) {
1771 if (c->fc->streams[i]->id == frag->track_id) {
1772 st = c->fc->streams[i];
1777 av_log(c->fc, AV_LOG_ERROR, "could not find corresponding track id %d\n", frag->track_id);
1781 if (sc->pseudo_stream_id+1 != frag->stsd_id)
1783 get_byte(pb); /* version */
1784 flags = get_be24(pb);
1785 entries = get_be32(pb);
1786 dprintf(c->fc, "flags 0x%x entries %d\n", flags, entries);
1787 if (flags & 0x001) data_offset = get_be32(pb);
1788 if (flags & 0x004) first_sample_flags = get_be32(pb);
1789 if (flags & 0x800) {
1791 if ((uint64_t)entries+sc->ctts_count >= UINT_MAX/sizeof(*sc->ctts_data))
1793 ctts_data = av_realloc(sc->ctts_data,
1794 (entries+sc->ctts_count)*sizeof(*sc->ctts_data));
1796 return AVERROR(ENOMEM);
1797 sc->ctts_data = ctts_data;
1800 offset = frag->base_data_offset + data_offset;
1802 dprintf(c->fc, "first sample flags 0x%x\n", first_sample_flags);
1803 for (i = 0; i < entries; i++) {
1804 unsigned sample_size = frag->size;
1805 int sample_flags = i ? frag->flags : first_sample_flags;
1806 unsigned sample_duration = frag->duration;
1809 if (flags & 0x100) sample_duration = get_be32(pb);
1810 if (flags & 0x200) sample_size = get_be32(pb);
1811 if (flags & 0x400) sample_flags = get_be32(pb);
1812 if (flags & 0x800) {
1813 sc->ctts_data[sc->ctts_count].count = 1;
1814 sc->ctts_data[sc->ctts_count].duration = get_be32(pb);
1817 if ((keyframe = st->codec->codec_type == CODEC_TYPE_AUDIO ||
1818 (flags & 0x004 && !i && !sample_flags) || sample_flags & 0x2000000))
1820 av_add_index_entry(st, offset, dts, sample_size, distance,
1821 keyframe ? AVINDEX_KEYFRAME : 0);
1822 dprintf(c->fc, "AVIndex stream %d, sample %d, offset %"PRIx64", dts %"PRId64", "
1823 "size %d, distance %d, keyframe %d\n", st->index, sc->sample_count+i,
1824 offset, dts, sample_size, distance, keyframe);
1826 dts += sample_duration;
1827 offset += sample_size;
1829 frag->moof_offset = offset;
1834 /* this atom should be null (from specs), but some buggy files put the 'moov' atom inside it... */
1835 /* like the files created with Adobe Premiere 5.0, for samples see */
1836 /* http://graphics.tudelft.nl/~wouter/publications/soundtests/ */
1837 static int mov_read_wide(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
1842 return 0; /* continue */
1843 if (get_be32(pb) != 0) { /* 0 sized mdat atom... use the 'wide' atom size */
1844 url_fskip(pb, atom.size - 4);
1847 atom.type = get_le32(pb);
1850 if (atom.type != MKTAG('m','d','a','t')) {
1851 url_fskip(pb, atom.size);
1854 err = mov_read_mdat(c, pb, atom);
1858 static int mov_read_cmov(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
1863 uint8_t *moov_data; /* uncompressed data */
1864 long cmov_len, moov_len;
1867 get_be32(pb); /* dcom atom */
1868 if (get_le32(pb) != MKTAG('d','c','o','m'))
1870 if (get_le32(pb) != MKTAG('z','l','i','b')) {
1871 av_log(c->fc, AV_LOG_ERROR, "unknown compression for cmov atom !");
1874 get_be32(pb); /* cmvd atom */
1875 if (get_le32(pb) != MKTAG('c','m','v','d'))
1877 moov_len = get_be32(pb); /* uncompressed size */
1878 cmov_len = atom.size - 6 * 4;
1880 cmov_data = av_malloc(cmov_len);
1882 return AVERROR(ENOMEM);
1883 moov_data = av_malloc(moov_len);
1886 return AVERROR(ENOMEM);
1888 get_buffer(pb, cmov_data, cmov_len);
1889 if(uncompress (moov_data, (uLongf *) &moov_len, (const Bytef *)cmov_data, cmov_len) != Z_OK)
1890 goto free_and_return;
1891 if(init_put_byte(&ctx, moov_data, moov_len, 0, NULL, NULL, NULL, NULL) != 0)
1892 goto free_and_return;
1893 atom.type = MKTAG('m','o','o','v');
1895 atom.size = moov_len;
1897 // { int fd = open("/tmp/uncompheader.mov", O_WRONLY | O_CREAT); write(fd, moov_data, moov_len); close(fd); }
1899 ret = mov_read_default(c, &ctx, atom);
1905 av_log(c->fc, AV_LOG_ERROR, "this file requires zlib support compiled in\n");
1910 /* edit list atom */
1911 static int mov_read_elst(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
1913 MOVStreamContext *sc;
1916 if (c->fc->nb_streams < 1)
1918 sc = c->fc->streams[c->fc->nb_streams-1]->priv_data;
1920 get_byte(pb); /* version */
1921 get_be24(pb); /* flags */
1922 edit_count = get_be32(pb); /* entries */
1924 if((uint64_t)edit_count*12+8 > atom.size)
1927 for(i=0; i<edit_count; i++){
1929 int duration = get_be32(pb); /* Track duration */
1930 time = get_be32(pb); /* Media time */
1931 get_be32(pb); /* Media rate */
1932 if (i == 0 && time >= -1) {
1933 sc->time_offset = time != -1 ? time : -duration;
1938 av_log(c->fc, AV_LOG_WARNING, "multiple edit list entries, "
1939 "a/v desync might occur, patch welcome\n");
1941 dprintf(c->fc, "track[%i].edit_count = %i\n", c->fc->nb_streams-1, edit_count);
1945 static const MOVParseTableEntry mov_default_parse_table[] = {
1946 { MKTAG('a','v','s','s'), mov_read_extradata },
1947 { MKTAG('c','o','6','4'), mov_read_stco },
1948 { MKTAG('c','s','l','g'), mov_read_cslg },
1949 { MKTAG('c','t','t','s'), mov_read_ctts }, /* composition time to sample */
1950 { MKTAG('d','i','n','f'), mov_read_default },
1951 { MKTAG('d','r','e','f'), mov_read_dref },
1952 { MKTAG('e','d','t','s'), mov_read_default },
1953 { MKTAG('e','l','s','t'), mov_read_elst },
1954 { MKTAG('e','n','d','a'), mov_read_enda },
1955 { MKTAG('f','i','e','l'), mov_read_extradata },
1956 { MKTAG('f','t','y','p'), mov_read_ftyp },
1957 { MKTAG('g','l','b','l'), mov_read_glbl },
1958 { MKTAG('h','d','l','r'), mov_read_hdlr },
1959 { MKTAG('i','l','s','t'), mov_read_ilst },
1960 { MKTAG('j','p','2','h'), mov_read_extradata },
1961 { MKTAG('m','d','a','t'), mov_read_mdat },
1962 { MKTAG('m','d','h','d'), mov_read_mdhd },
1963 { MKTAG('m','d','i','a'), mov_read_default },
1964 { MKTAG('m','e','t','a'), mov_read_meta },
1965 { MKTAG('m','i','n','f'), mov_read_default },
1966 { MKTAG('m','o','o','f'), mov_read_moof },
1967 { MKTAG('m','o','o','v'), mov_read_moov },
1968 { MKTAG('m','v','e','x'), mov_read_default },
1969 { MKTAG('m','v','h','d'), mov_read_mvhd },
1970 { MKTAG('S','M','I',' '), mov_read_smi }, /* Sorenson extension ??? */
1971 { MKTAG('a','l','a','c'), mov_read_extradata }, /* alac specific atom */
1972 { MKTAG('a','v','c','C'), mov_read_glbl },
1973 { MKTAG('p','a','s','p'), mov_read_pasp },
1974 { MKTAG('s','t','b','l'), mov_read_default },
1975 { MKTAG('s','t','c','o'), mov_read_stco },
1976 { MKTAG('s','t','p','s'), mov_read_stps },
1977 { MKTAG('s','t','s','c'), mov_read_stsc },
1978 { MKTAG('s','t','s','d'), mov_read_stsd }, /* sample description */
1979 { MKTAG('s','t','s','s'), mov_read_stss }, /* sync sample */
1980 { MKTAG('s','t','s','z'), mov_read_stsz }, /* sample size */
1981 { MKTAG('s','t','t','s'), mov_read_stts },
1982 { MKTAG('s','t','z','2'), mov_read_stsz }, /* compact sample size */
1983 { MKTAG('t','k','h','d'), mov_read_tkhd }, /* track header */
1984 { MKTAG('t','f','h','d'), mov_read_tfhd }, /* track fragment header */
1985 { MKTAG('t','r','a','k'), mov_read_trak },
1986 { MKTAG('t','r','a','f'), mov_read_default },
1987 { MKTAG('t','r','e','x'), mov_read_trex },
1988 { MKTAG('t','r','u','n'), mov_read_trun },
1989 { MKTAG('u','d','t','a'), mov_read_default },
1990 { MKTAG('w','a','v','e'), mov_read_wave },
1991 { MKTAG('e','s','d','s'), mov_read_esds },
1992 { MKTAG('w','i','d','e'), mov_read_wide }, /* place holder */
1993 { MKTAG('c','m','o','v'), mov_read_cmov },
1997 static int mov_probe(AVProbeData *p)
1999 unsigned int offset;
2003 /* check file header */
2006 /* ignore invalid offset */
2007 if ((offset + 8) > (unsigned int)p->buf_size)
2009 tag = AV_RL32(p->buf + offset + 4);
2011 /* check for obvious tags */
2012 case MKTAG('j','P',' ',' '): /* jpeg 2000 signature */
2013 case MKTAG('m','o','o','v'):
2014 case MKTAG('m','d','a','t'):
2015 case MKTAG('p','n','o','t'): /* detect movs with preview pics like ew.mov and april.mov */
2016 case MKTAG('u','d','t','a'): /* Packet Video PVAuthor adds this and a lot of more junk */
2017 case MKTAG('f','t','y','p'):
2018 return AVPROBE_SCORE_MAX;
2019 /* those are more common words, so rate then a bit less */
2020 case MKTAG('e','d','i','w'): /* xdcam files have reverted first tags */
2021 case MKTAG('w','i','d','e'):
2022 case MKTAG('f','r','e','e'):
2023 case MKTAG('j','u','n','k'):
2024 case MKTAG('p','i','c','t'):
2025 return AVPROBE_SCORE_MAX - 5;
2026 case MKTAG(0x82,0x82,0x7f,0x7d):
2027 case MKTAG('s','k','i','p'):
2028 case MKTAG('u','u','i','d'):
2029 case MKTAG('p','r','f','l'):
2030 offset = AV_RB32(p->buf+offset) + offset;
2031 /* if we only find those cause probedata is too small at least rate them */
2032 score = AVPROBE_SCORE_MAX - 50;
2035 /* unrecognized tag */
2042 static int mov_read_header(AVFormatContext *s, AVFormatParameters *ap)
2044 MOVContext *mov = s->priv_data;
2045 ByteIOContext *pb = s->pb;
2047 MOVAtom atom = { 0, 0, 0 };
2050 /* .mov and .mp4 aren't streamable anyway (only progressive download if moov is before mdat) */
2051 if(!url_is_streamed(pb))
2052 atom.size = url_fsize(pb);
2054 atom.size = INT64_MAX;
2056 /* check MOV header */
2057 if ((err = mov_read_default(mov, pb, atom)) < 0) {
2058 av_log(s, AV_LOG_ERROR, "error reading header: %d\n", err);
2061 if (!mov->found_moov) {
2062 av_log(s, AV_LOG_ERROR, "moov atom not found\n");
2065 dprintf(mov->fc, "on_parse_exit_offset=%lld\n", url_ftell(pb));
2070 static AVIndexEntry *mov_find_next_sample(AVFormatContext *s, AVStream **st)
2072 AVIndexEntry *sample = NULL;
2073 int64_t best_dts = INT64_MAX;
2075 for (i = 0; i < s->nb_streams; i++) {
2076 AVStream *avst = s->streams[i];
2077 MOVStreamContext *msc = avst->priv_data;
2078 if (msc->pb && msc->current_sample < avst->nb_index_entries) {
2079 AVIndexEntry *current_sample = &avst->index_entries[msc->current_sample];
2080 int64_t dts = av_rescale(current_sample->timestamp, AV_TIME_BASE, msc->time_scale);
2081 dprintf(s, "stream %d, sample %d, dts %"PRId64"\n", i, msc->current_sample, dts);
2082 if (!sample || (url_is_streamed(s->pb) && current_sample->pos < sample->pos) ||
2083 (!url_is_streamed(s->pb) &&
2084 ((msc->pb != s->pb && dts < best_dts) || (msc->pb == s->pb &&
2085 ((FFABS(best_dts - dts) <= AV_TIME_BASE && current_sample->pos < sample->pos) ||
2086 (FFABS(best_dts - dts) > AV_TIME_BASE && dts < best_dts)))))) {
2087 sample = current_sample;
2096 static int mov_read_packet(AVFormatContext *s, AVPacket *pkt)
2098 MOVContext *mov = s->priv_data;
2099 MOVStreamContext *sc;
2100 AVIndexEntry *sample;
2101 AVStream *st = NULL;
2104 sample = mov_find_next_sample(s, &st);
2106 mov->found_mdat = 0;
2107 if (!url_is_streamed(s->pb) ||
2108 mov_read_default(mov, s->pb, (MOVAtom){ 0, 0, INT64_MAX }) < 0 ||
2111 dprintf(s, "read fragments, offset 0x%llx\n", url_ftell(s->pb));
2115 /* must be done just before reading, to avoid infinite loop on sample */
2116 sc->current_sample++;
2118 if (st->discard != AVDISCARD_ALL) {
2119 if (url_fseek(sc->pb, sample->pos, SEEK_SET) != sample->pos) {
2120 av_log(mov->fc, AV_LOG_ERROR, "stream %d, offset 0x%"PRIx64": partial file\n",
2121 sc->ffindex, sample->pos);
2124 ret = av_get_packet(sc->pb, pkt, sample->size);
2127 #if CONFIG_DV_DEMUXER
2128 if (mov->dv_demux && sc->dv_audio_container) {
2129 dv_produce_packet(mov->dv_demux, pkt, pkt->data, pkt->size);
2132 ret = dv_get_packet(mov->dv_demux, pkt);
2139 pkt->stream_index = sc->ffindex;
2140 pkt->dts = sample->timestamp;
2141 if (sc->ctts_data) {
2142 pkt->pts = pkt->dts + sc->dts_shift + sc->ctts_data[sc->ctts_index].duration;
2143 /* update ctts context */
2145 if (sc->ctts_index < sc->ctts_count &&
2146 sc->ctts_data[sc->ctts_index].count == sc->ctts_sample) {
2148 sc->ctts_sample = 0;
2151 pkt->dts = AV_NOPTS_VALUE;
2153 int64_t next_dts = (sc->current_sample < st->nb_index_entries) ?
2154 st->index_entries[sc->current_sample].timestamp : st->duration;
2155 pkt->duration = next_dts - pkt->dts;
2156 pkt->pts = pkt->dts;
2158 if (st->discard == AVDISCARD_ALL)
2160 pkt->flags |= sample->flags & AVINDEX_KEYFRAME ? PKT_FLAG_KEY : 0;
2161 pkt->pos = sample->pos;
2162 dprintf(s, "stream %d, pts %"PRId64", dts %"PRId64", pos 0x%"PRIx64", duration %d\n",
2163 pkt->stream_index, pkt->pts, pkt->dts, pkt->pos, pkt->duration);
2167 static int mov_seek_stream(AVStream *st, int64_t timestamp, int flags)
2169 MOVStreamContext *sc = st->priv_data;
2170 int sample, time_sample;
2173 sample = av_index_search_timestamp(st, timestamp, flags);
2174 dprintf(st->codec, "stream %d, timestamp %"PRId64", sample %d\n", st->index, timestamp, sample);
2175 if (sample < 0) /* not sure what to do */
2177 sc->current_sample = sample;
2178 dprintf(st->codec, "stream %d, found sample %d\n", st->index, sc->current_sample);
2179 /* adjust ctts index */
2180 if (sc->ctts_data) {
2182 for (i = 0; i < sc->ctts_count; i++) {
2183 int next = time_sample + sc->ctts_data[i].count;
2184 if (next > sc->current_sample) {
2186 sc->ctts_sample = sc->current_sample - time_sample;
2195 static int mov_read_seek(AVFormatContext *s, int stream_index, int64_t sample_time, int flags)
2198 int64_t seek_timestamp, timestamp;
2202 if (stream_index >= s->nb_streams)
2204 if (sample_time < 0)
2207 st = s->streams[stream_index];
2208 sample = mov_seek_stream(st, sample_time, flags);
2212 /* adjust seek timestamp to found sample timestamp */
2213 seek_timestamp = st->index_entries[sample].timestamp;
2215 for (i = 0; i < s->nb_streams; i++) {
2217 if (stream_index == i)
2220 timestamp = av_rescale_q(seek_timestamp, s->streams[stream_index]->time_base, st->time_base);
2221 mov_seek_stream(st, timestamp, flags);
2226 static int mov_read_close(AVFormatContext *s)
2228 MOVContext *mov = s->priv_data;
2231 for (i = 0; i < s->nb_streams; i++) {
2232 AVStream *st = s->streams[i];
2233 MOVStreamContext *sc = st->priv_data;
2235 av_freep(&sc->ctts_data);
2236 for (j = 0; j < sc->drefs_count; j++)
2237 av_freep(&sc->drefs[j].path);
2238 av_freep(&sc->drefs);
2239 if (sc->pb && sc->pb != s->pb)
2242 av_freep(&st->codec->palctrl);
2245 if (mov->dv_demux) {
2246 for(i = 0; i < mov->dv_fctx->nb_streams; i++) {
2247 av_freep(&mov->dv_fctx->streams[i]->codec);
2248 av_freep(&mov->dv_fctx->streams[i]);
2250 av_freep(&mov->dv_fctx);
2251 av_freep(&mov->dv_demux);
2254 av_freep(&mov->trex_data);
2259 AVInputFormat mov_demuxer = {
2260 "mov,mp4,m4a,3gp,3g2,mj2",
2261 NULL_IF_CONFIG_SMALL("QuickTime/MPEG-4/Motion JPEG 2000 format"),