3 * Copyright (c) 2001 Fabrice Bellard.
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
27 * First version by Francois Revol revol@free.fr
29 * Features and limitations:
30 * - reads most of the QT files I have (at least the structure),
31 * the exceptions are .mov with zlib compressed headers ('cmov' section). It shouldn't be hard to implement.
32 * FIXED, Francois Revol, 07/17/2002
33 * - ffmpeg has nearly none of the usual QuickTime codecs,
34 * although I succesfully dumped raw and mp3 audio tracks off .mov files.
35 * Sample QuickTime files with mp3 audio can be found at: http://www.3ivx.com/showcase.html
36 * - .mp4 parsing is still hazardous, although the format really is QuickTime with some minor changes
37 * (to make .mov parser crash maybe ?), despite what they say in the MPEG FAQ at
38 * http://mpeg.telecomitalialab.com/faq.htm
39 * - the code is quite ugly... maybe I won't do it recursive next time :-)
41 * Funny I didn't know about http://sourceforge.net/projects/qt-ffmpeg/
42 * when coding this :) (it's a writer anyway)
44 * Reference documents:
45 * http://www.geocities.com/xhelmboyx/quicktime/formats/qtm-layout.txt
47 * http://developer.apple.com/techpubs/quicktime/qtdevdocs/QTFF/qtff.html
48 * http://developer.apple.com/techpubs/quicktime/qtdevdocs/PDF/QTFileFormat.pdf
49 * QuickTime is a trademark of Apple (AFAIK :))
58 /* allows chunk splitting - should work now... */
59 /* in case you can't read a file, try commenting */
60 #define MOV_SPLIT_CHUNKS
62 /* Special handling for movies created with Minolta Dimaxe Xi*/
63 /* this fix should not interfere with other .mov files, but just in case*/
64 #define MOV_MINOLTA_FIX
66 /* some streams in QT (and in MP4 mostly) aren't either video nor audio */
67 /* so we first list them as this, then clean up the list of streams we give back, */
68 /* getting rid of these */
69 #define CODEC_TYPE_MOV_OTHER (enum CodecType) 2
71 static const CodecTag mov_video_tags[] = {
72 /* { CODEC_ID_, MKTAG('c', 'v', 'i', 'd') }, *//* Cinepak */
73 /* { CODEC_ID_H263, MKTAG('r', 'a', 'w', ' ') }, *//* Uncompressed RGB */
74 /* { CODEC_ID_H263, MKTAG('Y', 'u', 'v', '2') }, *//* Uncompressed YUV422 */
75 /* { CODEC_ID_RAWVIDEO, MKTAG('A', 'V', 'U', 'I') }, *//* YUV with alpha-channel (AVID Uncompressed) */
80 { CODEC_ID_MJPEG, MKTAG('j', 'p', 'e', 'g') }, /* PhotoJPEG */
81 { CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'e', 'g') }, /* MPEG */
82 { CODEC_ID_MJPEG, MKTAG('m', 'j', 'p', 'a') }, /* Motion-JPEG (format A) */
83 { CODEC_ID_MJPEG, MKTAG('m', 'j', 'p', 'b') }, /* Motion-JPEG (format B) */
84 { CODEC_ID_MJPEG, MKTAG('A', 'V', 'D', 'J') }, /* MJPEG with alpha-channel (AVID JFIF meridien compressed) */
85 /* { CODEC_ID_MJPEG, MKTAG('A', 'V', 'R', 'n') }, *//* MJPEG with alpha-channel (AVID ABVB/Truevision NuVista) */
86 /* { CODEC_ID_GIF, MKTAG('g', 'i', 'f', ' ') }, *//* embedded gif files as frames (usually one "click to play movie" frame) */
88 { CODEC_ID_SVQ1, MKTAG('S', 'V', 'Q', '1') }, /* Sorenson Video v1 */
89 { CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', '1') }, /* Sorenson Video v1 */
90 { CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', 'i') }, /* Sorenson Video v1 (from QT specs)*/
91 { CODEC_ID_SVQ3, MKTAG('S', 'V', 'Q', '3') }, /* Sorenson Video v3 */
92 { CODEC_ID_MPEG4, MKTAG('m', 'p', '4', 'v') },
93 { CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', 'X') }, /* OpenDiVX *//* sample files at http://heroinewarrior.com/xmovie.php3 use this tag */
94 /* { CODEC_ID_, MKTAG('I', 'V', '5', '0') }, *//* Indeo 5.0 */
95 { CODEC_ID_H263, MKTAG('h', '2', '6', '3') }, /* H263 */
96 { CODEC_ID_H263, MKTAG('s', '2', '6', '3') }, /* H263 ?? works */
97 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', ' ') }, /* DV NTSC */
98 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', 'p') }, /* DV PAL */
99 /* { CODEC_ID_DVVIDEO, MKTAG('A', 'V', 'd', 'v') }, *//* AVID dv */
100 { CODEC_ID_VP3, MKTAG('V', 'P', '3', '1') }, /* On2 VP3 */
101 { CODEC_ID_NONE, 0 },
104 static const CodecTag mov_audio_tags[] = {
105 /* { CODEC_ID_PCM_S16BE, MKTAG('N', 'O', 'N', 'E') }, *//* uncompressed */
106 { CODEC_ID_PCM_S16BE, MKTAG('t', 'w', 'o', 's') }, /* 16 bits */
107 /* { CODEC_ID_PCM_S8, MKTAG('t', 'w', 'o', 's') },*/ /* 8 bits */
108 { CODEC_ID_PCM_U8, MKTAG('r', 'a', 'w', ' ') }, /* 8 bits unsigned */
109 { CODEC_ID_PCM_S16LE, MKTAG('s', 'o', 'w', 't') }, /* */
110 { CODEC_ID_PCM_MULAW, MKTAG('u', 'l', 'a', 'w') }, /* */
111 { CODEC_ID_PCM_ALAW, MKTAG('a', 'l', 'a', 'w') }, /* */
112 { CODEC_ID_ADPCM_IMA_QT, MKTAG('i', 'm', 'a', '4') }, /* IMA-4 ADPCM */
113 { CODEC_ID_MACE3, MKTAG('M', 'A', 'C', '3') }, /* Macintosh Audio Compression and Expansion 3:1 */
114 { CODEC_ID_MACE6, MKTAG('M', 'A', 'C', '6') }, /* Macintosh Audio Compression and Expansion 6:1 */
116 { CODEC_ID_MP2, MKTAG('.', 'm', 'p', '3') }, /* MPEG layer 3 */ /* sample files at http://www.3ivx.com/showcase.html use this tag */
117 { CODEC_ID_MP2, 0x6D730055 }, /* MPEG layer 3 */
118 { CODEC_ID_MP2, 0x5500736D }, /* MPEG layer 3 *//* XXX: check endianness */
119 /* { CODEC_ID_OGG_VORBIS, MKTAG('O', 'g', 'g', 'S') }, *//* sample files at http://heroinewarrior.com/xmovie.php3 use this tag */
121 { CODEC_ID_AAC, MKTAG('m', 'p', '4', 'a') }, /* MPEG 4 AAC or audio ? */
122 /* The standard for mpeg4 audio is still not normalised AFAIK anyway */
123 { CODEC_ID_AMR_NB, MKTAG('s', 'a', 'm', 'r') }, /* AMR-NB 3gp */
124 { CODEC_ID_NONE, 0 },
127 /* the QuickTime file format is quite convoluted...
128 * it has lots of index tables, each indexing something in another one...
129 * Here we just use what is needed to read the chunks
132 typedef struct MOV_sample_to_chunk_tbl {
136 } MOV_sample_to_chunk_tbl;
141 int64_t size; /* total size (excluding the size and type fields) */
153 uint32_t flags; // 24bit
155 /* 0x03 ESDescrTag */
157 #define MP4ODescrTag 0x01
158 #define MP4IODescrTag 0x02
159 #define MP4ESDescrTag 0x03
160 #define MP4DecConfigDescrTag 0x04
161 #define MP4DecSpecificDescrTag 0x05
162 #define MP4SLConfigDescrTag 0x06
163 #define MP4ContentIdDescrTag 0x07
164 #define MP4SupplContentIdDescrTag 0x08
165 #define MP4IPIPtrDescrTag 0x09
166 #define MP4IPMPPtrDescrTag 0x0A
167 #define MP4IPMPDescrTag 0x0B
168 #define MP4RegistrationDescrTag 0x0D
169 #define MP4ESIDIncDescrTag 0x0E
170 #define MP4ESIDRefDescrTag 0x0F
171 #define MP4FileIODescrTag 0x10
172 #define MP4FileODescrTag 0x11
173 #define MP4ExtProfileLevelDescrTag 0x13
174 #define MP4ExtDescrTagsStart 0x80
175 #define MP4ExtDescrTagsEnd 0xFE
176 uint8_t stream_priority;
178 /* 0x04 DecConfigDescrTag */
179 uint8_t object_type_id;
181 /* XXX: really streamType is
182 * only 6bit, followed by:
186 uint32_t buffer_size_db; // 24
187 uint32_t max_bitrate;
188 uint32_t avg_bitrate;
190 /* 0x05 DecSpecificDescrTag */
191 uint8_t decoder_cfg_len;
192 uint8_t *decoder_cfg;
194 /* 0x06 SLConfigDescrTag */
195 uint8_t sl_config_len;
199 struct MOVParseTableEntry;
201 typedef struct MOVStreamContext {
202 int ffindex; /* the ffmpeg stream id */
203 int is_ff_stream; /* Is this stream presented to ffmpeg ? i.e. is this an audio or video stream ? */
206 int64_t *chunk_offsets;
207 long sample_to_chunk_sz;
208 MOV_sample_to_chunk_tbl *sample_to_chunk;
209 long sample_to_chunk_index;
215 long left_in_chunk; /* how many samples before next chunk */
216 /* specific MPEG4 header which is added at the beginning of the stream */
218 uint8_t *header_data;
222 typedef struct MOVContext {
223 int mp4; /* set to 1 as soon as we are sure that the file is an .mp4 file (even some header parsing depends on this) */
226 int duration; /* duration of the longest track */
227 int found_moov; /* when both 'moov' and 'mdat' sections has been found */
228 int found_mdat; /* we suppose we have enough data to read the file */
232 /* some streams listed here aren't presented to the ffmpeg API, since they aren't either video nor audio
233 * but we need the info to be able to skip data from those streams in the 'mdat' section
235 MOVStreamContext *streams[MAX_STREAMS];
237 int64_t next_chunk_offset;
238 MOVStreamContext *partial; /* != 0 : there is still to read in the current chunk */
240 MOV_ctab_t **ctab; /* color tables */
241 const struct MOVParseTableEntry *parse_table; /* could be eventually used to change the table */
242 /* NOTE: for recursion save to/ restore from local variable! */
246 /* XXX: it's the first time I make a recursive parser I think... sorry if it's ugly :P */
248 /* those functions parse an atom */
250 1: found what I wanted, exit
251 0: continue to parse next atom
252 -1: error occured, exit
254 typedef int (*mov_parse_function)(MOVContext *ctx, ByteIOContext *pb, MOV_atom_t atom);
256 /* links atom IDs to parse functions */
257 typedef struct MOVParseTableEntry {
259 mov_parse_function func;
260 } MOVParseTableEntry;
264 * XXX: static sux, even more in a multithreaded environment...
265 * Avoid them. This is here just to help debugging.
267 static int debug_indent = 0;
268 void print_atom(const char *str, MOV_atom_t atom)
271 tag = (unsigned int) atom.type;
273 if(tag == 0) tag = MKTAG('N', 'U', 'L', 'L');
277 printf(" %s: tag=%c%c%c%c offset=0x%x size=0x%x\n",
282 (unsigned int)atom.offset,
283 (unsigned int)atom.size);
284 assert((unsigned int)atom.size < 0x7fffffff);// catching errors
287 #define print_atom(a,b)
291 static int mov_read_leaf(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
293 print_atom("leaf", atom);
296 url_fskip(pb, atom.size);
297 /* url_seek(pb, atom_offset+atom.size, SEEK_SET); */
301 static int mov_read_default(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
303 int64_t total_size = 0;
309 print_atom("default", atom);
313 a.offset = atom.offset;
316 atom.size = 0x7fffffffffffffffLL;
317 while(((total_size + 8) < atom.size) && !url_feof(pb) && !err) {
321 a.size = get_be32(pb);
322 a.type = get_le32(pb);
326 //printf("type: %08x %.4s sz: %Lx %Lx %Lx\n", type, (char*)&type, size, atom.size, total_size);
327 if (a.size == 1) { /* 64 bit extended size */
328 a.size = get_be64(pb) - 8;
333 a.size = atom.size - total_size;
337 for (i = 0; c->parse_table[i].type != 0L
338 && c->parse_table[i].type != a.type; i++)
342 // printf(" i=%ld\n", i);
343 if (c->parse_table[i].type == 0) { /* skip leaf atoms data */
344 // url_seek(pb, atom.offset+atom.size, SEEK_SET);
346 print_atom("unknown", a);
348 url_fskip(pb, a.size);
351 //char b[5] = { type & 0xff, (type >> 8) & 0xff, (type >> 16) & 0xff, (type >> 24) & 0xff, 0 };
352 //print_atom(b, type, offset, size);
354 err = (c->parse_table[i].func)(c, pb, a);
358 total_size += a.size;
361 if (!err && total_size < atom.size && atom.size < 0x7ffff) {
362 //printf("RESET %Ld %Ld err:%d\n", atom.size, total_size, err);
363 url_fskip(pb, atom.size - total_size);
372 static int mov_read_ctab(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
376 //url_fskip(pb, atom.size); // for now
377 c->ctab = av_realloc(c->ctab, ++c->ctab_size);
378 t = c->ctab[c->ctab_size];
379 t->seed = get_be32(pb);
380 t->flags = get_be16(pb);
381 t->size = get_be16(pb) + 1;
382 len = 2 * t->size * 4;
384 t->clrs = av_malloc(len); // 16bit A R G B
386 get_buffer(pb, t->clrs, len);
392 static int mov_read_hdlr(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
394 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
399 print_atom("hdlr", atom);
401 get_byte(pb); /* version */
402 get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
405 ctype = get_le32(pb);
406 type = get_le32(pb); /* component subtype */
409 printf("ctype= %c%c%c%c (0x%08lx)\n", *((char *)&ctype), ((char *)&ctype)[1], ((char *)&ctype)[2], ((char *)&ctype)[3], (long) ctype);
410 printf("stype= %c%c%c%c\n", *((char *)&type), ((char *)&type)[1], ((char *)&type)[2], ((char *)&type)[3]);
413 /* XXX: yeah this is ugly... */
414 if(ctype == MKTAG('m', 'h', 'l', 'r')) { /* MOV */
415 if(type == MKTAG('v', 'i', 'd', 'e'))
417 else if(type == MKTAG('s', 'o', 'u', 'n'))
419 } else if(ctype == 0) { /* MP4 */
420 if(type == MKTAG('v', 'i', 'd', 'e'))
422 else if(type == MKTAG('s', 'o', 'u', 'n'))
424 else if(type == MKTAG('o', 'd', 's', 'm'))
426 else if(type == MKTAG('s', 'd', 's', 'm'))
428 } else puts("hdlr: meta");
431 if(ctype == MKTAG('m', 'h', 'l', 'r')) { /* MOV */
432 /* helps parsing the string hereafter... */
434 if(type == MKTAG('v', 'i', 'd', 'e'))
435 st->codec.codec_type = CODEC_TYPE_VIDEO;
436 else if(type == MKTAG('s', 'o', 'u', 'n'))
437 st->codec.codec_type = CODEC_TYPE_AUDIO;
438 } else if(ctype == 0) { /* MP4 */
439 /* helps parsing the string hereafter... */
441 if(type == MKTAG('v', 'i', 'd', 'e'))
442 st->codec.codec_type = CODEC_TYPE_VIDEO;
443 else if(type == MKTAG('s', 'o', 'u', 'n'))
444 st->codec.codec_type = CODEC_TYPE_AUDIO;
446 get_be32(pb); /* component manufacture */
447 get_be32(pb); /* component flags */
448 get_be32(pb); /* component flags mask */
451 return 0; /* nothing left to read */
452 /* XXX: MP4 uses a C string, not a pascal one */
457 while(get_byte(pb) && (++len < (atom.size - 24)));
459 /* .mov: PASCAL string */
465 buf = (uint8_t*) av_malloc(len+1);
467 get_buffer(pb, buf, len);
469 printf("**buf='%s'\n", buf);
479 static int mov_mp4_read_descr_len(ByteIOContext *pb)
484 int c = get_byte(pb);
485 len = (len << 7) | (c & 0x7f);
492 static int mov_mp4_read_descr(ByteIOContext *pb, int *tag)
496 len = mov_mp4_read_descr_len(pb);
498 printf("MPEG4 description: tag=0x%02x len=%d\n", *tag, len);
503 static inline unsigned int get_be24(ByteIOContext *s)
506 val = get_byte(s) << 16;
507 val |= get_byte(s) << 8;
512 static int mov_read_esds(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
514 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
515 MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
516 int64_t start_pos = url_ftell(pb);
519 print_atom("esds", atom);
521 /* Well, broken but suffisant for some MP4 streams */
522 get_be32(pb); /* version + flags */
523 len = mov_mp4_read_descr(pb, &tag);
524 if (tag == MP4ESDescrTag) {
525 get_be16(pb); /* ID */
526 get_byte(pb); /* priority */
528 get_be16(pb); /* ID */
530 len = mov_mp4_read_descr(pb, &tag);
531 if (tag == MP4DecConfigDescrTag) {
532 sc->esds.object_type_id = get_byte(pb);
533 sc->esds.stream_type = get_byte(pb);
534 sc->esds.buffer_size_db = get_be24(pb);
535 sc->esds.max_bitrate = get_be32(pb);
536 sc->esds.avg_bitrate = get_be32(pb);
538 len = mov_mp4_read_descr(pb, &tag);
539 //printf("LEN %d TAG %d m:%d a:%d\n", len, tag, sc->esds.max_bitrate, sc->esds.avg_bitrate);
540 if (tag == MP4DecSpecificDescrTag) {
542 printf("Specific MPEG4 header len=%d\n", len);
544 st->codec.extradata = (uint8_t*) av_mallocz(len);
545 if (st->codec.extradata) {
546 get_buffer(pb, st->codec.extradata, len);
547 st->codec.extradata_size = len;
551 /* in any case, skip garbage */
552 url_fskip(pb, atom.size - ((url_ftell(pb) - start_pos)));
556 /* this atom contains actual media data */
557 static int mov_read_mdat(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
559 print_atom("mdat", atom);
561 if(atom.size == 0) /* wrong one (MP4) */
564 c->mdat_offset = atom.offset;
565 c->mdat_size = atom.size;
567 return 1; /* found both, just go */
568 url_fskip(pb, atom.size);
569 return 0; /* now go for moov */
572 /* this atom should contain all header atoms */
573 static int mov_read_moov(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
577 print_atom("moov", atom);
579 err = mov_read_default(c, pb, atom);
580 /* we parsed the 'moov' atom, we can terminate the parsing as soon as we find the 'mdat' */
581 /* so we don't parse the whole file if over a network */
584 return 1; /* found both, just go */
585 return 0; /* now go for mdat */
589 static int mov_read_mdhd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
591 print_atom("mdhd", atom);
593 get_byte(pb); /* version */
595 get_byte(pb); get_byte(pb);
596 get_byte(pb); /* flags */
598 get_be32(pb); /* creation time */
599 get_be32(pb); /* modification time */
601 c->streams[c->total_streams]->time_scale = get_be32(pb);
604 printf("track[%i].time_scale = %i\n", c->fc->nb_streams-1, c->streams[c->total_streams]->time_scale); /* time scale */
606 get_be32(pb); /* duration */
608 get_be16(pb); /* language */
609 get_be16(pb); /* quality */
614 static int mov_read_mvhd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
616 print_atom("mvhd", atom);
618 get_byte(pb); /* version */
619 get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
621 get_be32(pb); /* creation time */
622 get_be32(pb); /* modification time */
623 c->time_scale = get_be32(pb); /* time scale */
625 printf("time scale = %i\n", c->time_scale);
627 c->duration = get_be32(pb); /* duration */
628 get_be32(pb); /* preferred scale */
630 get_be16(pb); /* preferred volume */
632 url_fskip(pb, 10); /* reserved */
634 url_fskip(pb, 36); /* display matrix */
636 get_be32(pb); /* preview time */
637 get_be32(pb); /* preview duration */
638 get_be32(pb); /* poster time */
639 get_be32(pb); /* selection time */
640 get_be32(pb); /* selection duration */
641 get_be32(pb); /* current time */
642 get_be32(pb); /* next track ID */
647 static int mov_read_smi(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
649 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
651 // currently SVQ3 decoder expect full STSD header - so let's fake it
652 // this should be fixed and just SMI header should be passed
653 av_free(st->codec.extradata);
654 st->codec.extradata_size = 0x5a + atom.size;
655 st->codec.extradata = (uint8_t*) av_mallocz(st->codec.extradata_size);
657 if (st->codec.extradata) {
658 strcpy(st->codec.extradata, "SVQ3"); // fake
659 get_buffer(pb, st->codec.extradata + 0x5a, atom.size);
660 //printf("Reading SMI %Ld %s\n", atom.size, (char*)st->codec.extradata + 0x5a);
662 url_fskip(pb, atom.size);
667 static int mov_read_stco(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
669 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
670 MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
673 print_atom("stco", atom);
675 get_byte(pb); /* version */
676 get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
678 entries = get_be32(pb);
679 sc->chunk_count = entries;
680 sc->chunk_offsets = (int64_t*) av_malloc(entries * sizeof(int64_t));
681 if (!sc->chunk_offsets)
683 if (atom.type == MKTAG('s', 't', 'c', 'o')) {
684 for(i=0; i<entries; i++) {
685 sc->chunk_offsets[i] = get_be32(pb);
687 } else if (atom.type == MKTAG('c', 'o', '6', '4')) {
688 for(i=0; i<entries; i++) {
689 sc->chunk_offsets[i] = get_be64(pb);
695 for(i=0; i<entries; i++) {
696 printf("chunk offset=0x%Lx\n", sc->chunk_offsets[i]);
703 static int mov_read_stsd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
705 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
706 //MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
707 int entries, frames_per_sample;
710 print_atom("stsd", atom);
712 get_byte(pb); /* version */
713 get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
715 entries = get_be32(pb);
717 while(entries--) { //Parsing Sample description table
719 int size = get_be32(pb); /* size */
720 format = get_le32(pb); /* data format */
722 get_be32(pb); /* reserved */
723 get_be16(pb); /* reserved */
724 get_be16(pb); /* index */
726 /* for MPEG4: set codec type by looking for it */
727 id = codec_get_id(mov_video_tags, format);
730 codec = avcodec_find_decoder(id);
732 st->codec.codec_type = codec->type;
735 printf("size=%d 4CC= %c%c%c%c codec_type=%d\n",
737 (format >> 0) & 0xff,
738 (format >> 8) & 0xff,
739 (format >> 16) & 0xff,
740 (format >> 24) & 0xff,
741 st->codec.codec_type);
743 st->codec.codec_tag = format;
744 if(st->codec.codec_type==CODEC_TYPE_VIDEO) {
745 MOV_atom_t a = { 0, 0, 0 };
746 st->codec.codec_id = id;
747 get_be16(pb); /* version */
748 get_be16(pb); /* revision level */
749 get_be32(pb); /* vendor */
750 get_be32(pb); /* temporal quality */
751 get_be32(pb); /* spacial quality */
752 st->codec.width = get_be16(pb); /* width */
753 st->codec.height = get_be16(pb); /* height */
755 if (st->codec.codec_id == CODEC_ID_MPEG4) {
756 /* in some MPEG4 the width/height are not correct, so
757 we ignore this info */
759 st->codec.height = 0;
762 get_be32(pb); /* horiz resolution */
763 get_be32(pb); /* vert resolution */
764 get_be32(pb); /* data size, always 0 */
765 frames_per_sample = get_be16(pb); /* frames per samples */
767 printf("frames/samples = %d\n", frames_per_sample);
769 get_buffer(pb, (uint8_t *)st->codec.codec_name, 32); /* codec name */
771 st->codec.bits_per_sample = get_be16(pb); /* depth */
772 st->codec.color_table_id = get_be16(pb); /* colortable id */
774 /* These are set in mov_read_stts and might already be set!
775 st->codec.frame_rate = 25;
776 st->codec.frame_rate_base = 1;
778 size -= (16+8*4+2+32+2*2);
784 a.size = get_be32(pb);
785 a.type = get_le32(pb);
788 printf("VIDEO: atom_type=%c%c%c%c atom.size=%Ld size_left=%d\n",
789 (a.type >> 0) & 0xff,
790 (a.type >> 8) & 0xff,
791 (a.type >> 16) & 0xff,
792 (a.type >> 24) & 0xff,
795 start_pos = url_ftell(pb);
798 case MKTAG('e', 's', 'd', 's'):
801 /* Well, broken but suffisant for some MP4 streams */
802 get_be32(pb); /* version + flags */
803 len = mov_mp4_read_descr(pb, &tag);
806 get_be16(pb); /* ID */
807 get_byte(pb); /* priority */
808 len = mov_mp4_read_descr(pb, &tag);
811 /* MP4DecConfigDescrTag */
812 get_byte(pb); /* objectTypeId */
813 get_be32(pb); /* streamType + buffer size */
814 get_be32(pb); /* max bit rate */
815 get_be32(pb); /* avg bit rate */
816 len = mov_mp4_read_descr(pb, &tag);
819 /* MP4DecSpecificDescrTag */
821 printf("Specific MPEG4 header len=%d\n", len);
823 sc->header_data = av_mallocz(len);
824 if (sc->header_data) {
825 get_buffer(pb, sc->header_data, len);
826 sc->header_len = len;
829 /* in any case, skip garbage */
836 printf("ATOMENEWSIZE %Ld %d\n", atom.size, url_ftell(pb) - start_pos);
838 url_fskip(pb, (atom.size - 8) -
839 ((url_ftell(pb) - start_pos)));
840 size -= atom.size - 8;
844 /* unknown extension */
849 mov_read_default(c, pb, a);
852 st->codec.codec_id = codec_get_id(mov_audio_tags, format);
853 if(st->codec.codec_id==CODEC_ID_AMR_NB) //from TS26.244
856 printf("AMR-NB audio identified!!\n");
858 get_be32(pb);get_be32(pb); //Reserved_8
859 get_be16(pb);//Reserved_2
860 get_be16(pb);//Reserved_2
861 get_be32(pb);//Reserved_4
862 get_be16(pb);//TimeScale
863 get_be16(pb);//Reserved_2
865 //AMRSpecificBox.(10 bytes)
874 get_be32(pb); //type=='damr'
878 get_be32(pb); //vendor
879 get_byte(pb); //decoder version
880 get_be16(pb); //mode_set
881 get_byte(pb); //mode_change_period
882 get_byte(pb); //frames_per_sample
885 printf("Audio: damr_type=%c%c%c%c damr_size=%d damr_vendor=%c%c%c%c\n",
886 (damr_type >> 24) & 0xff,
887 (damr_type >> 16) & 0xff,
888 (damr_type >> 8) & 0xff,
889 (damr_type >> 0) & 0xff,
891 (damr_vendor >> 24) & 0xff,
892 (damr_vendor >> 16) & 0xff,
893 (damr_vendor >> 8) & 0xff,
894 (damr_vendor >> 0) & 0xff
898 st->duration = AV_NOPTS_VALUE;//Not possible to get from this info, must count number of AMR frames
899 st->codec.sample_rate=8000;
900 st->codec.channels=1;
901 st->codec.bits_per_sample=16;
902 st->codec.bit_rate=0; /*It is not possible to tell this before we have
903 an audio frame and even then every frame can be different*/
905 else if( st->codec.codec_tag == MKTAG( 'm', 'p', '4', 's' ))
907 //This is some stuff for the hint track, lets ignore it!
908 //Do some mp4 auto detect.
911 url_fskip(pb, size); /* The mp4s atom also contians a esds atom that we can skip*/
913 else if(size>=(16+20))
914 {//16 bytes read, reading atleast 20 more
916 printf("audio size=0x%X\n",size);
918 uint16_t version = get_be16(pb); /* version */
919 get_be16(pb); /* revision level */
920 get_be32(pb); /* vendor */
922 st->codec.channels = get_be16(pb); /* channel count */
923 st->codec.bits_per_sample = get_be16(pb); /* sample size */
925 /* handle specific s8 codec */
926 get_be16(pb); /* compression id = 0*/
927 get_be16(pb); /* packet size = 0 */
929 st->codec.sample_rate = ((get_be32(pb) >> 16));
930 //printf("CODECID %d %d %.4s\n", st->codec.codec_id, CODEC_ID_PCM_S16BE, (char*)&format);
932 switch (st->codec.codec_id) {
933 case CODEC_ID_PCM_S16BE:
934 if (st->codec.bits_per_sample == 8)
935 st->codec.codec_id = CODEC_ID_PCM_S8;
937 case CODEC_ID_PCM_U8:
938 st->codec.bit_rate = st->codec.sample_rate * 8;
944 //Read QT version 1 fields. In version 0 theese dont exist
946 printf("version =%d mp4=%d\n",version,c->mp4);
947 printf("size-(16+20+16)=%d\n",size-(16+20+16));
949 if((version==1) && size>=(16+20+16))
951 get_be32(pb); /* samples per packet */
952 get_be32(pb); /* bytes per packet */
953 get_be32(pb); /* bytes per frame */
954 get_be32(pb); /* bytes per sample */
957 //Optional, additional atom-based fields
959 printf("offest=0x%X, sizeleft=%d=0x%x,format=%c%c%c%c\n",(int)url_ftell(pb),size - (16 + 20 + 16 ),size - (16 + 20 + 16 ),
960 (format >> 0) & 0xff,
961 (format >> 8) & 0xff,
962 (format >> 16) & 0xff,
963 (format >> 24) & 0xff);
965 MOV_atom_t a = { format, url_ftell(pb), size - (16 + 20 + 16 + 8) };
966 mov_read_default(c, pb, a);
971 //We should be down to 0 bytes here, but lets make sure.
975 printf("skipping 0x%X bytes\n",size-(16+20));
983 //Unknown size, but lets do our best and skip the rest.
985 printf("Strange size, skipping 0x%X bytes\n",size);
995 static int mov_read_stsc(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
997 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
998 MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
1001 print_atom("stsc", atom);
1003 get_byte(pb); /* version */
1004 get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
1006 entries = get_be32(pb);
1008 printf("track[%i].stsc.entries = %i\n", c->fc->nb_streams-1, entries);
1010 sc->sample_to_chunk_sz = entries;
1011 sc->sample_to_chunk = (MOV_sample_to_chunk_tbl*) av_malloc(entries * sizeof(MOV_sample_to_chunk_tbl));
1012 if (!sc->sample_to_chunk)
1014 for(i=0; i<entries; i++) {
1015 sc->sample_to_chunk[i].first = get_be32(pb);
1016 sc->sample_to_chunk[i].count = get_be32(pb);
1017 sc->sample_to_chunk[i].id = get_be32(pb);
1019 /* printf("sample_to_chunk first=%ld count=%ld, id=%ld\n", sc->sample_to_chunk[i].first, sc->sample_to_chunk[i].count, sc->sample_to_chunk[i].id); */
1025 static int mov_read_stsz(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1027 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
1028 MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
1031 print_atom("stsz", atom);
1033 get_byte(pb); /* version */
1034 get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
1036 sc->sample_size = get_be32(pb);
1037 entries = get_be32(pb);
1038 sc->sample_count = entries;
1040 printf("sample_size = %ld sample_count = %ld\n", sc->sample_size, sc->sample_count);
1043 return 0; /* there isn't any table following */
1044 sc->sample_sizes = (long*) av_malloc(entries * sizeof(long));
1045 if (!sc->sample_sizes)
1047 for(i=0; i<entries; i++) {
1048 sc->sample_sizes[i] = get_be32(pb);
1050 /* printf("sample_sizes[]=%ld\n", sc->sample_sizes[i]); */
1056 static int mov_read_stts(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1058 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
1059 //MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
1062 int total_sample_count=0;
1064 print_atom("stts", atom);
1066 get_byte(pb); /* version */
1067 get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
1068 entries = get_be32(pb);
1072 printf("track[%i].stts.entries = %i\n", c->fc->nb_streams-1, entries);
1074 for(i=0; i<entries; i++) {
1075 int sample_duration;
1078 sample_count=get_be32(pb);
1079 sample_duration = get_be32(pb);
1081 printf("sample_count=%d, sample_duration=%d\n",sample_count,sample_duration);
1083 duration+=sample_duration*sample_count;
1084 total_sample_count+=sample_count;
1086 #if 0 //We calculate an average instead, needed by .mp4-files created with nec e606 3g phone
1088 if (!i && st->codec.codec_type==CODEC_TYPE_VIDEO) {
1089 st->codec.frame_rate_base = sample_duration ? sample_duration : 1;
1090 st->codec.frame_rate = c->streams[c->total_streams]->time_scale;
1092 printf("VIDEO FRAME RATE= %i (sd= %i)\n", st->codec.frame_rate, sample_duration);
1098 #define MAX(a,b) a>b?a:b
1099 #define MIN(a,b) a>b?b:a
1100 /*The stsd atom which contain codec type sometimes comes after the stts so we cannot check for codec_type*/
1103 //Find greatest common divisor to avoid overflow using the Euclidean Algorithm...
1104 uint32_t max=MAX(duration,total_sample_count);
1105 uint32_t min=MIN(duration,total_sample_count);
1106 uint32_t spare=max%min;
1116 total_sample_count/=min;
1118 //Only support constant frame rate. But lets calculate the average. Needed by .mp4-files created with nec e606 3g phone.
1119 //To get better precision, we use the duration as frame_rate_base
1121 st->codec.frame_rate_base=duration;
1122 st->codec.frame_rate = c->streams[c->total_streams]->time_scale * total_sample_count;
1125 printf("FRAME RATE average (video or audio)= %f (tot sample count= %i ,tot dur= %i timescale=%d)\n", (float)st->codec.frame_rate/st->codec.frame_rate_base,total_sample_count,duration,c->streams[c->total_streams]->time_scale);
1130 st->codec.frame_rate_base = 1;
1131 st->codec.frame_rate = c->streams[c->total_streams]->time_scale;
1138 static int mov_read_trak(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1141 MOVStreamContext *sc;
1143 print_atom("trak", atom);
1145 st = av_new_stream(c->fc, c->fc->nb_streams);
1147 sc = (MOVStreamContext*) av_mallocz(sizeof(MOVStreamContext));
1153 sc->sample_to_chunk_index = -1;
1155 st->codec.codec_type = CODEC_TYPE_MOV_OTHER;
1156 st->start_time = 0; /* XXX: check */
1157 st->duration = (c->duration * (int64_t)AV_TIME_BASE) / c->time_scale;
1158 c->streams[c->fc->nb_streams-1] = sc;
1160 return mov_read_default(c, pb, atom);
1163 static int mov_read_tkhd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1167 print_atom("tkhd", atom);
1169 st = c->fc->streams[c->fc->nb_streams-1];
1171 get_byte(pb); /* version */
1173 get_byte(pb); get_byte(pb);
1174 get_byte(pb); /* flags */
1176 MOV_TRACK_ENABLED 0x0001
1177 MOV_TRACK_IN_MOVIE 0x0002
1178 MOV_TRACK_IN_PREVIEW 0x0004
1179 MOV_TRACK_IN_POSTER 0x0008
1182 get_be32(pb); /* creation time */
1183 get_be32(pb); /* modification time */
1184 st->id = (int)get_be32(pb); /* track id (NOT 0 !)*/
1185 get_be32(pb); /* reserved */
1186 st->start_time = 0; /* check */
1187 st->duration = (get_be32(pb) * (int64_t)AV_TIME_BASE) / c->time_scale; /* duration */
1188 get_be32(pb); /* reserved */
1189 get_be32(pb); /* reserved */
1191 get_be16(pb); /* layer */
1192 get_be16(pb); /* alternate group */
1193 get_be16(pb); /* volume */
1194 get_be16(pb); /* reserved */
1196 url_fskip(pb, 36); /* display matrix */
1198 /* those are fixed-point */
1199 st->codec.width = get_be32(pb) >> 16; /* track width */
1200 st->codec.height = get_be32(pb) >> 16; /* track height */
1205 /* this atom should be null (from specs), but some buggy files put the 'moov' atom inside it... */
1206 /* like the files created with Adobe Premiere 5.0, for samples see */
1207 /* http://graphics.tudelft.nl/~wouter/publications/soundtests/ */
1208 static int mov_read_wide(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1213 print_atom("wide", atom);
1217 return 0; /* continue */
1218 if (get_be32(pb) != 0) { /* 0 sized mdat atom... use the 'wide' atom size */
1219 url_fskip(pb, atom.size - 4);
1222 atom.type = get_le32(pb);
1225 if (atom.type != MKTAG('m', 'd', 'a', 't')) {
1226 url_fskip(pb, atom.size);
1229 err = mov_read_mdat(c, pb, atom);
1238 static int null_read_packet(void *opaque, uint8_t *buf, int buf_size)
1243 static int mov_read_cmov(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1247 uint8_t *moov_data; /* uncompressed data */
1248 long cmov_len, moov_len;
1251 print_atom("cmov", atom);
1253 get_be32(pb); /* dcom atom */
1254 if (get_le32(pb) != MKTAG( 'd', 'c', 'o', 'm' ))
1256 if (get_le32(pb) != MKTAG( 'z', 'l', 'i', 'b' )) {
1257 dprintf("unknown compression for cmov atom !");
1260 get_be32(pb); /* cmvd atom */
1261 if (get_le32(pb) != MKTAG( 'c', 'm', 'v', 'd' ))
1263 moov_len = get_be32(pb); /* uncompressed size */
1264 cmov_len = atom.size - 6 * 4;
1266 cmov_data = (uint8_t *) av_malloc(cmov_len);
1269 moov_data = (uint8_t *) av_malloc(moov_len);
1274 get_buffer(pb, cmov_data, cmov_len);
1275 if(uncompress (moov_data, (uLongf *) &moov_len, (const Bytef *)cmov_data, cmov_len) != Z_OK)
1277 if(init_put_byte(&ctx, moov_data, moov_len, 0, NULL, null_read_packet, NULL, NULL) != 0)
1279 ctx.buf_end = ctx.buffer + moov_len;
1280 atom.type = MKTAG( 'm', 'o', 'o', 'v' );
1282 atom.size = moov_len;
1284 { int fd = open("/tmp/uncompheader.mov", O_WRONLY | O_CREAT); write(fd, moov_data, moov_len); close(fd); }
1286 ret = mov_read_default(c, &ctx, atom);
1294 static const MOVParseTableEntry mov_default_parse_table[] = {
1296 { MKTAG( 'c', 'o', '6', '4' ), mov_read_stco },
1297 { MKTAG( 'c', 'p', 'r', 't' ), mov_read_default },
1298 { MKTAG( 'c', 'r', 'h', 'd' ), mov_read_default },
1299 { MKTAG( 'c', 't', 't', 's' ), mov_read_leaf }, /* composition time to sample */
1300 { MKTAG( 'd', 'i', 'n', 'f' ), mov_read_default }, /* data information */
1301 { MKTAG( 'd', 'p', 'n', 'd' ), mov_read_leaf },
1302 { MKTAG( 'd', 'r', 'e', 'f' ), mov_read_leaf },
1303 { MKTAG( 'e', 'd', 't', 's' ), mov_read_default },
1304 { MKTAG( 'e', 'l', 's', 't' ), mov_read_leaf },
1305 { MKTAG( 'f', 'r', 'e', 'e' ), mov_read_leaf },
1306 { MKTAG( 'h', 'd', 'l', 'r' ), mov_read_hdlr },
1307 { MKTAG( 'h', 'i', 'n', 't' ), mov_read_leaf },
1308 { MKTAG( 'h', 'm', 'h', 'd' ), mov_read_leaf },
1309 { MKTAG( 'i', 'o', 'd', 's' ), mov_read_leaf },
1310 { MKTAG( 'm', 'd', 'a', 't' ), mov_read_mdat },
1311 { MKTAG( 'm', 'd', 'h', 'd' ), mov_read_mdhd },
1312 { MKTAG( 'm', 'd', 'i', 'a' ), mov_read_default },
1313 { MKTAG( 'm', 'i', 'n', 'f' ), mov_read_default },
1314 { MKTAG( 'm', 'o', 'o', 'v' ), mov_read_moov },
1315 { MKTAG( 'm', 'p', '4', 'a' ), mov_read_default },
1316 { MKTAG( 'm', 'p', '4', 's' ), mov_read_default },
1317 { MKTAG( 'm', 'p', '4', 'v' ), mov_read_default },
1318 { MKTAG( 'm', 'p', 'o', 'd' ), mov_read_leaf },
1319 { MKTAG( 'm', 'v', 'h', 'd' ), mov_read_mvhd },
1320 { MKTAG( 'n', 'm', 'h', 'd' ), mov_read_leaf },
1321 { MKTAG( 'o', 'd', 'h', 'd' ), mov_read_default },
1322 { MKTAG( 's', 'd', 'h', 'd' ), mov_read_default },
1323 { MKTAG( 's', 'k', 'i', 'p' ), mov_read_default },
1324 { MKTAG( 's', 'm', 'h', 'd' ), mov_read_leaf }, /* sound media info header */
1325 { MKTAG( 'S', 'M', 'I', ' ' ), mov_read_smi }, /* Sorrenson extension ??? */
1326 { MKTAG( 's', 't', 'b', 'l' ), mov_read_default },
1327 { MKTAG( 's', 't', 'c', 'o' ), mov_read_stco },
1328 { MKTAG( 's', 't', 'd', 'p' ), mov_read_default },
1329 { MKTAG( 's', 't', 's', 'c' ), mov_read_stsc },
1330 { MKTAG( 's', 't', 's', 'd' ), mov_read_stsd }, /* sample description */
1331 { MKTAG( 's', 't', 's', 'h' ), mov_read_default },
1332 { MKTAG( 's', 't', 's', 's' ), mov_read_leaf }, /* sync sample */
1333 { MKTAG( 's', 't', 's', 'z' ), mov_read_stsz }, /* sample size */
1334 { MKTAG( 's', 't', 't', 's' ), mov_read_stts },
1335 { MKTAG( 't', 'k', 'h', 'd' ), mov_read_tkhd }, /* track header */
1336 { MKTAG( 't', 'r', 'a', 'k' ), mov_read_trak },
1337 { MKTAG( 't', 'r', 'e', 'f' ), mov_read_default }, /* not really */
1338 { MKTAG( 'u', 'd', 't', 'a' ), mov_read_leaf },
1339 { MKTAG( 'u', 'r', 'l', ' ' ), mov_read_leaf },
1340 { MKTAG( 'u', 'r', 'n', ' ' ), mov_read_leaf },
1341 { MKTAG( 'u', 'u', 'i', 'd' ), mov_read_default },
1342 { MKTAG( 'v', 'm', 'h', 'd' ), mov_read_leaf }, /* video media info header */
1343 { MKTAG( 'w', 'a', 'v', 'e' ), mov_read_default },
1345 { MKTAG( 'M', 'D', 'E', 'S' ), mov_read_leaf },
1347 { MKTAG( 'c', 'h', 'a', 'p' ), mov_read_leaf },
1348 { MKTAG( 'c', 'l', 'i', 'p' ), mov_read_default },
1349 { MKTAG( 'c', 'r', 'g', 'n' ), mov_read_leaf },
1350 { MKTAG( 'c', 't', 'a', 'b' ), mov_read_ctab },
1351 { MKTAG( 'e', 's', 'd', 's' ), mov_read_esds },
1352 { MKTAG( 'k', 'm', 'a', 't' ), mov_read_leaf },
1353 { MKTAG( 'm', 'a', 't', 't' ), mov_read_default },
1354 { MKTAG( 'r', 'd', 'r', 'f' ), mov_read_leaf },
1355 { MKTAG( 'r', 'm', 'd', 'a' ), mov_read_default },
1356 { MKTAG( 'r', 'm', 'd', 'r' ), mov_read_leaf },
1357 { MKTAG( 'r', 'm', 'r', 'a' ), mov_read_default },
1358 { MKTAG( 's', 'c', 'p', 't' ), mov_read_leaf },
1359 { MKTAG( 's', 's', 'r', 'c' ), mov_read_leaf },
1360 { MKTAG( 's', 'y', 'n', 'c' ), mov_read_leaf },
1361 { MKTAG( 't', 'c', 'm', 'd' ), mov_read_leaf },
1362 { MKTAG( 'w', 'i', 'd', 'e' ), mov_read_wide }, /* place holder */
1363 //{ MKTAG( 'r', 'm', 'q', 'u' ), mov_read_leaf },
1365 { MKTAG( 'c', 'm', 'o', 'v' ), mov_read_cmov },
1367 { MKTAG( 'c', 'm', 'o', 'v' ), mov_read_leaf },
1369 { 0L, mov_read_leaf }
1372 static void mov_free_stream_context(MOVStreamContext *sc)
1375 av_free(sc->chunk_offsets);
1376 av_free(sc->sample_to_chunk);
1377 av_free(sc->sample_sizes);
1378 av_free(sc->header_data);
1383 static inline uint32_t mov_to_tag(uint8_t *buf)
1385 return MKTAG(buf[0], buf[1], buf[2], buf[3]);
1388 static inline uint32_t to_be32(uint8_t *buf)
1390 return (buf[0] << 24) | (buf[1] << 16) | (buf[2] << 8) | buf[3];
1393 /* XXX: is it sufficient ? */
1394 static int mov_probe(AVProbeData *p)
1396 unsigned int offset;
1399 /* check file header */
1400 if (p->buf_size <= 12)
1404 /* ignore invalid offset */
1405 if ((offset + 8) > (unsigned int)p->buf_size)
1407 tag = mov_to_tag(p->buf + offset + 4);
1409 case MKTAG( 'm', 'o', 'o', 'v' ):
1410 case MKTAG( 'w', 'i', 'd', 'e' ):
1411 case MKTAG( 'f', 'r', 'e', 'e' ):
1412 case MKTAG( 'm', 'd', 'a', 't' ):
1413 case MKTAG( 'p', 'n', 'o', 't' ): /* detect movs with preview pics like ew.mov and april.mov */
1414 case MKTAG( 'u', 'd', 't', 'a' ): /* Packet Video PVAuthor adds this and a lot of more junk */
1415 return AVPROBE_SCORE_MAX;
1416 case MKTAG( 'f', 't', 'y', 'p' ):
1417 case MKTAG( 's', 'k', 'i', 'p' ):
1418 offset = to_be32(p->buf+offset) + offset;
1421 /* unrecognized tag */
1428 static int mov_read_header(AVFormatContext *s, AVFormatParameters *ap)
1430 MOVContext *mov = (MOVContext *) s->priv_data;
1431 ByteIOContext *pb = &s->pb;
1433 MOV_atom_t atom = { 0, 0, 0 };
1436 mov->parse_table = mov_default_parse_table;
1438 /* XXX: I think we should auto detect */
1439 if(s->iformat->name[1] == 'p')
1442 if(!url_is_streamed(pb)) /* .mov and .mp4 aren't streamable anyway (only progressive download if moov is before mdat) */
1443 atom.size = url_filesize(url_fileno(pb));
1445 atom.size = 0x7FFFFFFFFFFFFFFFLL;
1448 printf("filesz=%Ld\n", atom.size);
1451 /* check MOV header */
1452 err = mov_read_default(mov, pb, atom);
1453 if (err<0 || (!mov->found_moov && !mov->found_mdat)) {
1454 fprintf(stderr, "mov: header not found !!! (err:%d, moov:%d, mdat:%d) pos:%lld\n",
1455 err, mov->found_moov, mov->found_mdat, url_ftell(pb));
1459 printf("on_parse_exit_offset=%d\n", (int) url_ftell(pb));
1461 /* some cleanup : make sure we are on the mdat atom */
1462 if(!url_is_streamed(pb) && (url_ftell(pb) != mov->mdat_offset))
1463 url_fseek(pb, mov->mdat_offset, SEEK_SET);
1465 mov->next_chunk_offset = mov->mdat_offset; /* initialise reading */
1468 printf("mdat_reset_offset=%d\n", (int) url_ftell(pb));
1472 printf("streams= %d\n", s->nb_streams);
1474 mov->total_streams = nb = s->nb_streams;
1477 for(i=0; i<s->nb_streams;) {
1478 if(s->streams[i]->codec.codec_type == CODEC_TYPE_MOV_OTHER) {/* not audio, not video, delete */
1479 av_free(s->streams[i]);
1480 for(j=i+1; j<s->nb_streams; j++)
1481 s->streams[j-1] = s->streams[j];
1486 for(i=0; i<s->nb_streams;i++) {
1487 MOVStreamContext *sc;
1488 sc = (MOVStreamContext *)s->streams[i]->priv_data;
1490 sc->is_ff_stream = 1;
1494 printf("real streams= %d\n", s->nb_streams);
1499 /* Yes, this is ugly... I didn't write the specs of QT :p */
1500 /* XXX:remove useless commented code sometime */
1501 static int mov_read_packet(AVFormatContext *s, AVPacket *pkt)
1503 MOVContext *mov = (MOVContext *) s->priv_data;
1504 MOVStreamContext *sc;
1505 int64_t offset = 0x0FFFFFFFFFFFFFFFLL;
1510 #ifdef MOV_SPLIT_CHUNKS
1516 idx = sc->sample_to_chunk_index;
1518 if (idx < 0) return 0;
1519 size = sc->sample_sizes[sc->current_sample];
1521 sc->current_sample++;
1522 sc->left_in_chunk--;
1524 if (sc->left_in_chunk <= 0)
1526 offset = mov->next_chunk_offset;
1527 /* extract the sample */
1535 for(i=0; i<mov->total_streams; i++) {
1536 MOVStreamContext *msc = mov->streams[i];
1537 //printf("MOCHUNK %ld %d %p pos:%Ld\n", mov->streams[i]->next_chunk, mov->total_streams, mov->streams[i], url_ftell(&s->pb));
1538 if ((msc->next_chunk < msc->chunk_count) && msc->next_chunk >= 0
1539 && (msc->chunk_offsets[msc->next_chunk] < offset)) {
1541 offset = msc->chunk_offsets[msc->next_chunk];
1542 //printf("SELETED %Ld i:%d\n", offset, i);
1545 if (!sc || offset==0x0FFFFFFFFFFFFFFFLL)
1550 if(mov->next_chunk_offset < offset) { /* some meta data */
1551 url_fskip(&s->pb, (offset - mov->next_chunk_offset));
1552 mov->next_chunk_offset = offset;
1555 //printf("chunk: [%i] %lli -> %lli\n", st_id, mov->next_chunk_offset, offset);
1556 if(!sc->is_ff_stream) {
1557 url_fskip(&s->pb, (offset - mov->next_chunk_offset));
1558 mov->next_chunk_offset = offset;
1559 offset = 0x0FFFFFFFFFFFFFFFLL;
1563 /* now get the chunk size... */
1565 for(i=0; i<mov->total_streams; i++) {
1566 MOVStreamContext *msc = mov->streams[i];
1567 if ((msc->next_chunk < msc->chunk_count)
1568 && ((msc->chunk_offsets[msc->next_chunk] - offset) < size))
1569 size = msc->chunk_offsets[msc->next_chunk] - offset;
1572 #ifdef MOV_MINOLTA_FIX
1573 //Make sure that size is according to sample_size (Needed by .mov files
1574 //created on a Minolta Dimage Xi where audio chunks contains waste data in the end)
1575 //Maybe we should really not only check sc->sample_size, but also sc->sample_sizes
1576 //but I have no such movies
1577 if (sc->sample_size > 0) {
1579 for(i=0; i<(sc->sample_to_chunk_sz); i++) {
1580 if( (sc->sample_to_chunk[i].first)<=(sc->next_chunk) && (sc->sample_size>0) )
1582 foundsize=sc->sample_to_chunk[i].count*sc->sample_size;
1585 /*printf("sample_to_chunk first=%ld count=%ld, id=%ld\n", sc->sample_to_chunk[i].first, sc->sample_to_chunk[i].count, sc->sample_to_chunk[i].id);*/
1588 if( (foundsize>0) && (foundsize<size) )
1591 /*printf("this size should actually be %d\n",foundsize);*/
1596 #endif //MOV_MINOLTA_FIX
1598 #ifdef MOV_SPLIT_CHUNKS
1599 /* split chunks into samples */
1600 if (sc->sample_size == 0) {
1601 int idx = sc->sample_to_chunk_index;
1602 if ((idx + 1 < sc->sample_to_chunk_sz)
1603 && (sc->next_chunk >= sc->sample_to_chunk[idx + 1].first))
1605 sc->sample_to_chunk_index = idx;
1606 if (idx >= 0 && sc->sample_to_chunk[idx].count != 1) {
1608 /* we'll have to get those samples before next chunk */
1609 sc->left_in_chunk = sc->sample_to_chunk[idx].count - 1;
1610 size = sc->sample_sizes[sc->current_sample];
1613 sc->current_sample++;
1618 //printf("chunk: [%i] %lli -> %lli (%i)\n", st_id, offset, offset + size, size);
1619 if(size == 0x0FFFFFFF)
1620 size = mov->mdat_size + mov->mdat_offset - offset;
1625 url_fseek(&s->pb, offset, SEEK_SET);
1627 //printf("READCHUNK hlen: %d %d off: %Ld pos:%Ld\n", size, sc->header_len, offset, url_ftell(&s->pb));
1628 if (sc->header_len > 0) {
1629 av_new_packet(pkt, size + sc->header_len);
1630 memcpy(pkt->data, sc->header_data, sc->header_len);
1631 get_buffer(&s->pb, pkt->data + sc->header_len, size);
1633 av_freep(&sc->header_data);
1636 av_new_packet(pkt, size);
1637 get_buffer(&s->pb, pkt->data, pkt->size);
1639 pkt->stream_index = sc->ffindex;
1643 printf("Packet (%d, %d, %ld) ", pkt->stream_index, st_id, pkt->size);
1645 printf("%02x ", pkt->data[i]);
1647 printf("%c ", (pkt->data[i]) & 0x7F);
1652 mov->next_chunk_offset = offset + size;
1657 static int mov_read_close(AVFormatContext *s)
1660 MOVContext *mov = (MOVContext *) s->priv_data;
1661 for(i=0; i<mov->total_streams; i++)
1662 mov_free_stream_context(mov->streams[i]);
1663 for(i=0; i<s->nb_streams; i++)
1664 av_freep(&s->streams[i]);
1665 /* free color tabs */
1666 for(i=0; i<mov->ctab_size; i++)
1667 av_freep(&mov->ctab[i]);
1668 av_freep(&mov->ctab);
1672 static AVInputFormat mov_iformat = {
1674 "QuickTime/MPEG4 format",
1684 av_register_input_format(&mov_iformat);