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
30 * First version by Francois Revol revol@free.fr
32 * Features and limitations:
33 * - reads most of the QT files I have (at least the structure),
34 * the exceptions are .mov with zlib compressed headers ('cmov' section). It shouldn't be hard to implement.
35 * FIXED, Francois Revol, 07/17/2002
36 * - ffmpeg has nearly none of the usual QuickTime codecs,
37 * although I succesfully dumped raw and mp3 audio tracks off .mov files.
38 * Sample QuickTime files with mp3 audio can be found at: http://www.3ivx.com/showcase.html
39 * - .mp4 parsing is still hazardous, although the format really is QuickTime with some minor changes
40 * (to make .mov parser crash maybe ?), despite what they say in the MPEG FAQ at
41 * http://mpeg.telecomitalialab.com/faq.htm
42 * - the code is quite ugly... maybe I won't do it recursive next time :-)
44 * Funny I didn't know about http://sourceforge.net/projects/qt-ffmpeg/
45 * when coding this :) (it's a writer anyway)
47 * Reference documents:
48 * http://www.geocities.com/xhelmboyx/quicktime/formats/qtm-layout.txt
50 * http://developer.apple.com/techpubs/quicktime/qtdevdocs/QTFF/qtff.html
51 * http://developer.apple.com/techpubs/quicktime/qtdevdocs/PDF/QTFileFormat.pdf
52 * QuickTime is a trademark of Apple (AFAIK :))
61 #include "qtpalette.h"
63 /* allows chunk splitting - should work now... */
64 /* in case you can't read a file, try commenting */
65 #define MOV_SPLIT_CHUNKS
67 /* Special handling for movies created with Minolta Dimaxe Xi*/
68 /* this fix should not interfere with other .mov files, but just in case*/
69 #define MOV_MINOLTA_FIX
71 /* some streams in QT (and in MP4 mostly) aren't either video nor audio */
72 /* so we first list them as this, then clean up the list of streams we give back, */
73 /* getting rid of these */
74 #define CODEC_TYPE_MOV_OTHER (enum CodecType) 2
76 static const CodecTag mov_video_tags[] = {
77 /* { CODEC_ID_, MKTAG('c', 'v', 'i', 'd') }, *//* Cinepak */
78 /* { CODEC_ID_H263, MKTAG('r', 'a', 'w', ' ') }, *//* Uncompressed RGB */
79 /* { CODEC_ID_H263, MKTAG('Y', 'u', 'v', '2') }, *//* Uncompressed YUV422 */
80 /* { CODEC_ID_RAWVIDEO, MKTAG('A', 'V', 'U', 'I') }, *//* YUV with alpha-channel (AVID Uncompressed) */
85 { CODEC_ID_MJPEG, MKTAG('j', 'p', 'e', 'g') }, /* PhotoJPEG */
86 { CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'e', 'g') }, /* MPEG */
87 { CODEC_ID_MJPEG, MKTAG('m', 'j', 'p', 'a') }, /* Motion-JPEG (format A) */
88 { CODEC_ID_MJPEG, MKTAG('m', 'j', 'p', 'b') }, /* Motion-JPEG (format B) */
89 { CODEC_ID_MJPEG, MKTAG('A', 'V', 'D', 'J') }, /* MJPEG with alpha-channel (AVID JFIF meridien compressed) */
90 /* { CODEC_ID_MJPEG, MKTAG('A', 'V', 'R', 'n') }, *//* MJPEG with alpha-channel (AVID ABVB/Truevision NuVista) */
91 /* { CODEC_ID_GIF, MKTAG('g', 'i', 'f', ' ') }, *//* embedded gif files as frames (usually one "click to play movie" frame) */
93 { CODEC_ID_SVQ1, MKTAG('S', 'V', 'Q', '1') }, /* Sorenson Video v1 */
94 { CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', '1') }, /* Sorenson Video v1 */
95 { CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', 'i') }, /* Sorenson Video v1 (from QT specs)*/
96 { CODEC_ID_SVQ3, MKTAG('S', 'V', 'Q', '3') }, /* Sorenson Video v3 */
97 { CODEC_ID_MPEG4, MKTAG('m', 'p', '4', 'v') },
98 { CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', 'X') }, /* OpenDiVX *//* sample files at http://heroinewarrior.com/xmovie.php3 use this tag */
99 { CODEC_ID_MPEG4, MKTAG('X', 'V', 'I', 'D') },
100 /* { CODEC_ID_, MKTAG('I', 'V', '5', '0') }, *//* Indeo 5.0 */
101 { CODEC_ID_H263, MKTAG('h', '2', '6', '3') }, /* H263 */
102 { CODEC_ID_H263, MKTAG('s', '2', '6', '3') }, /* H263 ?? works */
103 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', ' ') }, /* DV NTSC */
104 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', 'p') }, /* DV PAL */
105 /* { CODEC_ID_DVVIDEO, MKTAG('A', 'V', 'd', 'v') }, *//* AVID dv */
106 { CODEC_ID_VP3, MKTAG('V', 'P', '3', '1') }, /* On2 VP3 */
107 { CODEC_ID_RPZA, MKTAG('r', 'p', 'z', 'a') }, /* Apple Video (RPZA) */
108 { CODEC_ID_CINEPAK, MKTAG('c', 'v', 'i', 'd') }, /* Cinepak */
109 { CODEC_ID_8BPS, MKTAG('8', 'B', 'P', 'S') }, /* Planar RGB (8BPS) */
110 { CODEC_ID_SMC, MKTAG('s', 'm', 'c', ' ') }, /* Apple Graphics (SMC) */
111 { CODEC_ID_QTRLE, MKTAG('r', 'l', 'e', ' ') }, /* Apple Animation (RLE) */
112 { CODEC_ID_NONE, 0 },
115 static const CodecTag mov_audio_tags[] = {
116 /* { CODEC_ID_PCM_S16BE, MKTAG('N', 'O', 'N', 'E') }, *//* uncompressed */
117 { CODEC_ID_PCM_S16BE, MKTAG('t', 'w', 'o', 's') }, /* 16 bits */
118 /* { CODEC_ID_PCM_S8, MKTAG('t', 'w', 'o', 's') },*/ /* 8 bits */
119 { CODEC_ID_PCM_U8, MKTAG('r', 'a', 'w', ' ') }, /* 8 bits unsigned */
120 { CODEC_ID_PCM_S16LE, MKTAG('s', 'o', 'w', 't') }, /* */
121 { CODEC_ID_PCM_MULAW, MKTAG('u', 'l', 'a', 'w') }, /* */
122 { CODEC_ID_PCM_ALAW, MKTAG('a', 'l', 'a', 'w') }, /* */
123 { CODEC_ID_ADPCM_IMA_QT, MKTAG('i', 'm', 'a', '4') }, /* IMA-4 ADPCM */
124 { CODEC_ID_MACE3, MKTAG('M', 'A', 'C', '3') }, /* Macintosh Audio Compression and Expansion 3:1 */
125 { CODEC_ID_MACE6, MKTAG('M', 'A', 'C', '6') }, /* Macintosh Audio Compression and Expansion 6:1 */
127 { CODEC_ID_MP2, MKTAG('.', 'm', 'p', '3') }, /* MPEG layer 3 */ /* sample files at http://www.3ivx.com/showcase.html use this tag */
128 { CODEC_ID_MP2, 0x6D730055 }, /* MPEG layer 3 */
129 { CODEC_ID_MP2, 0x5500736D }, /* MPEG layer 3 *//* XXX: check endianness */
130 /* { CODEC_ID_OGG_VORBIS, MKTAG('O', 'g', 'g', 'S') }, *//* sample files at http://heroinewarrior.com/xmovie.php3 use this tag */
132 { CODEC_ID_MPEG4AAC, MKTAG('m', 'p', '4', 'a') }, /* MPEG-4 AAC */
133 /* The standard for mpeg4 audio is still not normalised AFAIK anyway */
134 { CODEC_ID_AMR_NB, MKTAG('s', 'a', 'm', 'r') }, /* AMR-NB 3gp */
135 { CODEC_ID_AMR_WB, MKTAG('s', 'a', 'w', 'b') }, /* AMR-WB 3gp */
136 { CODEC_ID_AC3, MKTAG('m', 's', 0x20, 0x00) }, /* Dolby AC-3 */
137 { CODEC_ID_NONE, 0 },
140 /* the QuickTime file format is quite convoluted...
141 * it has lots of index tables, each indexing something in another one...
142 * Here we just use what is needed to read the chunks
145 typedef struct MOV_sample_to_chunk_tbl {
149 } MOV_sample_to_chunk_tbl;
154 int64_t size; /* total size (excluding the size and type fields) */
166 uint32_t flags; // 24bit
168 /* 0x03 ESDescrTag */
170 #define MP4ODescrTag 0x01
171 #define MP4IODescrTag 0x02
172 #define MP4ESDescrTag 0x03
173 #define MP4DecConfigDescrTag 0x04
174 #define MP4DecSpecificDescrTag 0x05
175 #define MP4SLConfigDescrTag 0x06
176 #define MP4ContentIdDescrTag 0x07
177 #define MP4SupplContentIdDescrTag 0x08
178 #define MP4IPIPtrDescrTag 0x09
179 #define MP4IPMPPtrDescrTag 0x0A
180 #define MP4IPMPDescrTag 0x0B
181 #define MP4RegistrationDescrTag 0x0D
182 #define MP4ESIDIncDescrTag 0x0E
183 #define MP4ESIDRefDescrTag 0x0F
184 #define MP4FileIODescrTag 0x10
185 #define MP4FileODescrTag 0x11
186 #define MP4ExtProfileLevelDescrTag 0x13
187 #define MP4ExtDescrTagsStart 0x80
188 #define MP4ExtDescrTagsEnd 0xFE
189 uint8_t stream_priority;
191 /* 0x04 DecConfigDescrTag */
192 uint8_t object_type_id;
194 /* XXX: really streamType is
195 * only 6bit, followed by:
199 uint32_t buffer_size_db; // 24
200 uint32_t max_bitrate;
201 uint32_t avg_bitrate;
203 /* 0x05 DecSpecificDescrTag */
204 uint8_t decoder_cfg_len;
205 uint8_t *decoder_cfg;
207 /* 0x06 SLConfigDescrTag */
208 uint8_t sl_config_len;
212 struct MOVParseTableEntry;
214 typedef struct MOVStreamContext {
215 int ffindex; /* the ffmpeg stream id */
216 int is_ff_stream; /* Is this stream presented to ffmpeg ? i.e. is this an audio or video stream ? */
219 int64_t *chunk_offsets;
220 long sample_to_chunk_sz;
221 MOV_sample_to_chunk_tbl *sample_to_chunk;
222 long sample_to_chunk_index;
230 long left_in_chunk; /* how many samples before next chunk */
231 /* specific MPEG4 header which is added at the beginning of the stream */
233 uint8_t *header_data;
237 typedef struct MOVContext {
238 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) */
241 int duration; /* duration of the longest track */
242 int found_moov; /* when both 'moov' and 'mdat' sections has been found */
243 int found_mdat; /* we suppose we have enough data to read the file */
247 /* some streams listed here aren't presented to the ffmpeg API, since they aren't either video nor audio
248 * but we need the info to be able to skip data from those streams in the 'mdat' section
250 MOVStreamContext *streams[MAX_STREAMS];
252 int64_t next_chunk_offset;
253 MOVStreamContext *partial; /* != 0 : there is still to read in the current chunk */
255 MOV_ctab_t **ctab; /* color tables */
256 const struct MOVParseTableEntry *parse_table; /* could be eventually used to change the table */
257 /* NOTE: for recursion save to/ restore from local variable! */
259 AVPaletteControl palette_control;
263 /* XXX: it's the first time I make a recursive parser I think... sorry if it's ugly :P */
265 /* those functions parse an atom */
267 1: found what I wanted, exit
268 0: continue to parse next atom
269 -1: error occured, exit
271 typedef int (*mov_parse_function)(MOVContext *ctx, ByteIOContext *pb, MOV_atom_t atom);
273 /* links atom IDs to parse functions */
274 typedef struct MOVParseTableEntry {
276 mov_parse_function func;
277 } MOVParseTableEntry;
281 * XXX: static sux, even more in a multithreaded environment...
282 * Avoid them. This is here just to help debugging.
284 static int debug_indent = 0;
285 void print_atom(const char *str, MOV_atom_t atom)
288 tag = (unsigned int) atom.type;
290 if(tag == 0) tag = MKTAG('N', 'U', 'L', 'L');
294 printf(" %s: tag=%c%c%c%c offset=0x%x size=0x%x\n",
299 (unsigned int)atom.offset,
300 (unsigned int)atom.size);
301 assert((unsigned int)atom.size < 0x7fffffff);// catching errors
304 #define print_atom(a,b)
308 static int mov_read_leaf(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
310 print_atom("leaf", atom);
313 url_fskip(pb, atom.size);
314 /* url_seek(pb, atom_offset+atom.size, SEEK_SET); */
318 static int mov_read_default(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
320 int64_t total_size = 0;
326 print_atom("default", atom);
330 a.offset = atom.offset;
333 atom.size = 0x7fffffffffffffffLL;
334 while(((total_size + 8) < atom.size) && !url_feof(pb) && !err) {
338 a.size = get_be32(pb);
339 a.type = get_le32(pb);
343 //printf("type: %08x %.4s sz: %Lx %Lx %Lx\n", type, (char*)&type, size, atom.size, total_size);
344 if (a.size == 1) { /* 64 bit extended size */
345 a.size = get_be64(pb) - 8;
350 a.size = atom.size - total_size;
354 for (i = 0; c->parse_table[i].type != 0L
355 && c->parse_table[i].type != a.type; i++)
359 // printf(" i=%ld\n", i);
360 if (c->parse_table[i].type == 0) { /* skip leaf atoms data */
361 // url_seek(pb, atom.offset+atom.size, SEEK_SET);
363 print_atom("unknown", a);
365 url_fskip(pb, a.size);
368 //char b[5] = { type & 0xff, (type >> 8) & 0xff, (type >> 16) & 0xff, (type >> 24) & 0xff, 0 };
369 //print_atom(b, type, offset, size);
371 err = (c->parse_table[i].func)(c, pb, a);
375 total_size += a.size;
378 if (!err && total_size < atom.size && atom.size < 0x7ffff) {
379 //printf("RESET %Ld %Ld err:%d\n", atom.size, total_size, err);
380 url_fskip(pb, atom.size - total_size);
389 static int mov_read_ctab(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
393 //url_fskip(pb, atom.size); // for now
394 c->ctab = av_realloc(c->ctab, ++c->ctab_size);
395 t = c->ctab[c->ctab_size];
396 t->seed = get_be32(pb);
397 t->flags = get_be16(pb);
398 t->size = get_be16(pb) + 1;
399 len = 2 * t->size * 4;
401 t->clrs = av_malloc(len); // 16bit A R G B
403 get_buffer(pb, t->clrs, len);
409 static int mov_read_hdlr(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
411 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
416 print_atom("hdlr", atom);
418 get_byte(pb); /* version */
419 get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
422 ctype = get_le32(pb);
423 type = get_le32(pb); /* component subtype */
426 printf("ctype= %c%c%c%c (0x%08lx)\n", *((char *)&ctype), ((char *)&ctype)[1], ((char *)&ctype)[2], ((char *)&ctype)[3], (long) ctype);
427 printf("stype= %c%c%c%c\n", *((char *)&type), ((char *)&type)[1], ((char *)&type)[2], ((char *)&type)[3]);
430 /* XXX: yeah this is ugly... */
431 if(ctype == MKTAG('m', 'h', 'l', 'r')) { /* MOV */
432 if(type == MKTAG('v', 'i', 'd', 'e'))
434 else if(type == MKTAG('s', 'o', 'u', 'n'))
436 } else if(ctype == 0) { /* MP4 */
437 if(type == MKTAG('v', 'i', 'd', 'e'))
439 else if(type == MKTAG('s', 'o', 'u', 'n'))
441 else if(type == MKTAG('o', 'd', 's', 'm'))
443 else if(type == MKTAG('s', 'd', 's', 'm'))
445 } else puts("hdlr: meta");
448 if(ctype == MKTAG('m', 'h', 'l', 'r')) { /* MOV */
449 /* helps parsing the string hereafter... */
451 if(type == MKTAG('v', 'i', 'd', 'e'))
452 st->codec.codec_type = CODEC_TYPE_VIDEO;
453 else if(type == MKTAG('s', 'o', 'u', 'n'))
454 st->codec.codec_type = CODEC_TYPE_AUDIO;
455 } else if(ctype == 0) { /* MP4 */
456 /* helps parsing the string hereafter... */
458 if(type == MKTAG('v', 'i', 'd', 'e'))
459 st->codec.codec_type = CODEC_TYPE_VIDEO;
460 else if(type == MKTAG('s', 'o', 'u', 'n'))
461 st->codec.codec_type = CODEC_TYPE_AUDIO;
463 get_be32(pb); /* component manufacture */
464 get_be32(pb); /* component flags */
465 get_be32(pb); /* component flags mask */
468 return 0; /* nothing left to read */
469 /* XXX: MP4 uses a C string, not a pascal one */
474 while(get_byte(pb) && (++len < (atom.size - 24)));
476 /* .mov: PASCAL string */
482 buf = (uint8_t*) av_malloc(len+1);
484 get_buffer(pb, buf, len);
486 printf("**buf='%s'\n", buf);
496 static int mov_mp4_read_descr_len(ByteIOContext *pb)
501 int c = get_byte(pb);
502 len = (len << 7) | (c & 0x7f);
509 static int mov_mp4_read_descr(ByteIOContext *pb, int *tag)
513 len = mov_mp4_read_descr_len(pb);
515 printf("MPEG4 description: tag=0x%02x len=%d\n", *tag, len);
520 static inline unsigned int get_be24(ByteIOContext *s)
523 val = get_byte(s) << 16;
524 val |= get_byte(s) << 8;
529 static int mov_read_esds(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
531 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
532 MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
533 int64_t start_pos = url_ftell(pb);
536 print_atom("esds", atom);
538 /* Well, broken but suffisant for some MP4 streams */
539 get_be32(pb); /* version + flags */
540 len = mov_mp4_read_descr(pb, &tag);
541 if (tag == MP4ESDescrTag) {
542 get_be16(pb); /* ID */
543 get_byte(pb); /* priority */
545 get_be16(pb); /* ID */
547 len = mov_mp4_read_descr(pb, &tag);
548 if (tag == MP4DecConfigDescrTag) {
549 sc->esds.object_type_id = get_byte(pb);
550 sc->esds.stream_type = get_byte(pb);
551 sc->esds.buffer_size_db = get_be24(pb);
552 sc->esds.max_bitrate = get_be32(pb);
553 sc->esds.avg_bitrate = get_be32(pb);
555 len = mov_mp4_read_descr(pb, &tag);
556 //printf("LEN %d TAG %d m:%d a:%d\n", len, tag, sc->esds.max_bitrate, sc->esds.avg_bitrate);
557 if (tag == MP4DecSpecificDescrTag) {
559 printf("Specific MPEG4 header len=%d\n", len);
561 st->codec.extradata = (uint8_t*) av_mallocz(len);
562 if (st->codec.extradata) {
563 get_buffer(pb, st->codec.extradata, len);
564 st->codec.extradata_size = len;
568 /* in any case, skip garbage */
569 url_fskip(pb, atom.size - ((url_ftell(pb) - start_pos)));
573 /* this atom contains actual media data */
574 static int mov_read_mdat(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
576 print_atom("mdat", atom);
578 if(atom.size == 0) /* wrong one (MP4) */
581 c->mdat_offset = atom.offset;
582 c->mdat_size = atom.size;
584 return 1; /* found both, just go */
585 url_fskip(pb, atom.size);
586 return 0; /* now go for moov */
589 /* this atom should contain all header atoms */
590 static int mov_read_moov(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
594 print_atom("moov", atom);
596 err = mov_read_default(c, pb, atom);
597 /* we parsed the 'moov' atom, we can terminate the parsing as soon as we find the 'mdat' */
598 /* so we don't parse the whole file if over a network */
601 return 1; /* found both, just go */
602 return 0; /* now go for mdat */
606 static int mov_read_mdhd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
608 print_atom("mdhd", atom);
610 get_byte(pb); /* version */
612 get_byte(pb); get_byte(pb);
613 get_byte(pb); /* flags */
615 get_be32(pb); /* creation time */
616 get_be32(pb); /* modification time */
618 c->streams[c->total_streams]->time_scale = get_be32(pb);
621 printf("track[%i].time_scale = %i\n", c->fc->nb_streams-1, c->streams[c->total_streams]->time_scale); /* time scale */
623 get_be32(pb); /* duration */
625 get_be16(pb); /* language */
626 get_be16(pb); /* quality */
631 static int mov_read_mvhd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
633 print_atom("mvhd", atom);
635 get_byte(pb); /* version */
636 get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
638 get_be32(pb); /* creation time */
639 get_be32(pb); /* modification time */
640 c->time_scale = get_be32(pb); /* time scale */
642 printf("time scale = %i\n", c->time_scale);
644 c->duration = get_be32(pb); /* duration */
645 get_be32(pb); /* preferred scale */
647 get_be16(pb); /* preferred volume */
649 url_fskip(pb, 10); /* reserved */
651 url_fskip(pb, 36); /* display matrix */
653 get_be32(pb); /* preview time */
654 get_be32(pb); /* preview duration */
655 get_be32(pb); /* poster time */
656 get_be32(pb); /* selection time */
657 get_be32(pb); /* selection duration */
658 get_be32(pb); /* current time */
659 get_be32(pb); /* next track ID */
664 static int mov_read_smi(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
666 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
668 // currently SVQ3 decoder expect full STSD header - so let's fake it
669 // this should be fixed and just SMI header should be passed
670 av_free(st->codec.extradata);
671 st->codec.extradata_size = 0x5a + atom.size;
672 st->codec.extradata = (uint8_t*) av_mallocz(st->codec.extradata_size);
674 if (st->codec.extradata) {
675 strcpy(st->codec.extradata, "SVQ3"); // fake
676 get_buffer(pb, st->codec.extradata + 0x5a, atom.size);
677 //printf("Reading SMI %Ld %s\n", atom.size, (char*)st->codec.extradata + 0x5a);
679 url_fskip(pb, atom.size);
684 static int mov_read_stco(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
686 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
687 MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
690 print_atom("stco", atom);
692 get_byte(pb); /* version */
693 get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
695 entries = get_be32(pb);
696 sc->chunk_count = entries;
697 sc->chunk_offsets = (int64_t*) av_malloc(entries * sizeof(int64_t));
698 if (!sc->chunk_offsets)
700 if (atom.type == MKTAG('s', 't', 'c', 'o')) {
701 for(i=0; i<entries; i++) {
702 sc->chunk_offsets[i] = get_be32(pb);
704 } else if (atom.type == MKTAG('c', 'o', '6', '4')) {
705 for(i=0; i<entries; i++) {
706 sc->chunk_offsets[i] = get_be64(pb);
712 for(i=0; i<entries; i++) {
713 printf("chunk offset=0x%Lx\n", sc->chunk_offsets[i]);
720 static int mov_read_stsd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
722 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
723 //MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
724 int entries, frames_per_sample;
727 /* for palette traversal */
735 unsigned char *color_table;
737 unsigned char r, g, b;
739 print_atom("stsd", atom);
741 get_byte(pb); /* version */
742 get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
744 entries = get_be32(pb);
746 while(entries--) { //Parsing Sample description table
748 int size = get_be32(pb); /* size */
749 format = get_le32(pb); /* data format */
751 get_be32(pb); /* reserved */
752 get_be16(pb); /* reserved */
753 get_be16(pb); /* index */
755 /* for MPEG4: set codec type by looking for it */
756 id = codec_get_id(mov_video_tags, format);
759 codec = avcodec_find_decoder(id);
761 st->codec.codec_type = codec->type;
764 printf("size=%d 4CC= %c%c%c%c codec_type=%d\n",
766 (format >> 0) & 0xff,
767 (format >> 8) & 0xff,
768 (format >> 16) & 0xff,
769 (format >> 24) & 0xff,
770 st->codec.codec_type);
772 st->codec.codec_tag = format;
773 if(st->codec.codec_type==CODEC_TYPE_VIDEO) {
774 MOV_atom_t a = { 0, 0, 0 };
775 st->codec.codec_id = id;
776 get_be16(pb); /* version */
777 get_be16(pb); /* revision level */
778 get_be32(pb); /* vendor */
779 get_be32(pb); /* temporal quality */
780 get_be32(pb); /* spacial quality */
781 st->codec.width = get_be16(pb); /* width */
782 st->codec.height = get_be16(pb); /* height */
784 if (st->codec.codec_id == CODEC_ID_MPEG4) {
785 /* in some MPEG4 the width/height are not correct, so
786 we ignore this info */
788 st->codec.height = 0;
791 get_be32(pb); /* horiz resolution */
792 get_be32(pb); /* vert resolution */
793 get_be32(pb); /* data size, always 0 */
794 frames_per_sample = get_be16(pb); /* frames per samples */
796 printf("frames/samples = %d\n", frames_per_sample);
798 get_buffer(pb, (uint8_t *)st->codec.codec_name, 32); /* codec name */
800 st->codec.bits_per_sample = get_be16(pb); /* depth */
801 st->codec.color_table_id = get_be16(pb); /* colortable id */
803 /* These are set in mov_read_stts and might already be set!
804 st->codec.frame_rate = 25;
805 st->codec.frame_rate_base = 1;
807 size -= (16+8*4+2+32+2*2);
813 a.size = get_be32(pb);
814 a.type = get_le32(pb);
817 printf("VIDEO: atom_type=%c%c%c%c atom.size=%Ld size_left=%d\n",
818 (a.type >> 0) & 0xff,
819 (a.type >> 8) & 0xff,
820 (a.type >> 16) & 0xff,
821 (a.type >> 24) & 0xff,
824 start_pos = url_ftell(pb);
827 case MKTAG('e', 's', 'd', 's'):
830 /* Well, broken but suffisant for some MP4 streams */
831 get_be32(pb); /* version + flags */
832 len = mov_mp4_read_descr(pb, &tag);
835 get_be16(pb); /* ID */
836 get_byte(pb); /* priority */
837 len = mov_mp4_read_descr(pb, &tag);
840 /* MP4DecConfigDescrTag */
841 get_byte(pb); /* objectTypeId */
842 get_be32(pb); /* streamType + buffer size */
843 get_be32(pb); /* max bit rate */
844 get_be32(pb); /* avg bit rate */
845 len = mov_mp4_read_descr(pb, &tag);
848 /* MP4DecSpecificDescrTag */
850 printf("Specific MPEG4 header len=%d\n", len);
852 sc->header_data = av_mallocz(len);
853 if (sc->header_data) {
854 get_buffer(pb, sc->header_data, len);
855 sc->header_len = len;
858 /* in any case, skip garbage */
865 printf("ATOMENEWSIZE %Ld %d\n", atom.size, url_ftell(pb) - start_pos);
867 url_fskip(pb, (atom.size - 8) -
868 ((url_ftell(pb) - start_pos)));
869 size -= atom.size - 8;
873 /* unknown extension */
878 /* figure out the palette situation */
879 color_depth = st->codec.bits_per_sample & 0x1F;
880 color_greyscale = st->codec.bits_per_sample & 0x20;
882 /* if the depth is 2, 4, or 8 bpp, file is palettized */
883 if ((color_depth == 2) || (color_depth == 4) ||
884 (color_depth == 8)) {
886 if (color_greyscale) {
888 /* compute the greyscale palette */
889 color_count = 1 << color_depth;
891 color_dec = 256 / (color_count - 1);
892 for (j = 0; j < color_count; j++) {
893 r = g = b = color_index;
894 c->palette_control.palette[j] =
895 (r << 16) | (g << 8) | (b);
896 color_index -= color_dec;
901 } else if (st->codec.color_table_id & 0x08) {
903 /* if flag bit 3 is set, use the default palette */
904 color_count = 1 << color_depth;
905 if (color_depth == 2)
906 color_table = ff_qt_default_palette_4;
907 else if (color_depth == 4)
908 color_table = ff_qt_default_palette_16;
910 color_table = ff_qt_default_palette_256;
912 for (j = 0; j < color_count; j++) {
913 r = color_table[j * 4 + 0];
914 g = color_table[j * 4 + 1];
915 b = color_table[j * 4 + 2];
916 c->palette_control.palette[j] =
917 (r << 16) | (g << 8) | (b);
922 /* load the palette from the file */
923 color_start = get_be32(pb);
924 color_count = get_be16(pb);
925 color_end = get_be16(pb);
926 for (j = color_start; j <= color_end; j++) {
927 /* each R, G, or B component is 16 bits;
928 * only use the top 8 bits; skip alpha bytes
938 c->palette_control.palette[j] =
939 (r << 16) | (g << 8) | (b);
943 st->codec.palctrl = &c->palette_control;
944 st->codec.palctrl->palette_changed = 1;
946 st->codec.palctrl = NULL;
949 mov_read_default(c, pb, a);
952 st->codec.codec_id = codec_get_id(mov_audio_tags, format);
953 if(st->codec.codec_id==CODEC_ID_AMR_NB || st->codec.codec_id==CODEC_ID_AMR_WB) //from TS26.244
956 printf("AMR-NB or AMR-WB audio identified!!\n");
958 get_be32(pb);get_be32(pb); //Reserved_8
959 get_be16(pb);//Reserved_2
960 get_be16(pb);//Reserved_2
961 get_be32(pb);//Reserved_4
962 get_be16(pb);//TimeScale
963 get_be16(pb);//Reserved_2
965 //AMRSpecificBox.(10 bytes)
968 get_be32(pb); //type=='damr'
969 get_be32(pb); //vendor
970 get_byte(pb); //decoder version
971 get_be16(pb); //mode_set
972 get_byte(pb); //mode_change_period
973 get_byte(pb); //frames_per_sample
975 st->duration = AV_NOPTS_VALUE;//Not possible to get from this info, must count number of AMR frames
976 if(st->codec.codec_id==CODEC_ID_AMR_NB)
978 st->codec.sample_rate=8000;
979 st->codec.channels=1;
983 st->codec.sample_rate=16000;
984 st->codec.channels=1;
986 st->codec.bits_per_sample=16;
987 st->codec.bit_rate=0; /*It is not possible to tell this before we have
988 an audio frame and even then every frame can be different*/
990 else if( st->codec.codec_tag == MKTAG( 'm', 'p', '4', 's' ))
992 //This is some stuff for the hint track, lets ignore it!
993 //Do some mp4 auto detect.
996 url_fskip(pb, size); /* The mp4s atom also contians a esds atom that we can skip*/
998 else if( st->codec.codec_tag == MKTAG( 'm', 'p', '4', 'a' ))
1000 /* Handle mp4 audio tag */
1001 get_be32(pb); /* version */
1003 st->codec.channels = get_be16(pb); /* channels */
1004 st->codec.bits_per_sample = get_be16(pb); /* bits per sample */
1006 st->codec.sample_rate = get_be16(pb); /* sample rate, not always correct */
1010 MOV_atom_t a = { format, url_ftell(pb), size - (20 + 20 + 8) };
1011 mov_read_default(c, pb, a);
1013 /* Get correct sample rate from extradata */
1014 if(st->codec.extradata_size) {
1015 const int samplerate_table[] = {
1016 96000, 88200, 64000, 48000, 44100, 32000,
1017 24000, 22050, 16000, 12000, 11025, 8000,
1020 unsigned char *px = st->codec.extradata;
1021 // 5 bits objectTypeIndex, 4 bits sampleRateIndex, 4 bits channels
1022 int samplerate_index = ((px[0] & 7) << 1) + ((px[1] >> 7) & 1);
1023 st->codec.sample_rate = samplerate_table[samplerate_index];
1026 else if(size>=(16+20))
1027 {//16 bytes read, reading atleast 20 more
1029 printf("audio size=0x%X\n",size);
1031 uint16_t version = get_be16(pb); /* version */
1032 get_be16(pb); /* revision level */
1033 get_be32(pb); /* vendor */
1035 st->codec.channels = get_be16(pb); /* channel count */
1036 st->codec.bits_per_sample = get_be16(pb); /* sample size */
1038 /* handle specific s8 codec */
1039 get_be16(pb); /* compression id = 0*/
1040 get_be16(pb); /* packet size = 0 */
1042 st->codec.sample_rate = ((get_be32(pb) >> 16));
1043 //printf("CODECID %d %d %.4s\n", st->codec.codec_id, CODEC_ID_PCM_S16BE, (char*)&format);
1045 switch (st->codec.codec_id) {
1046 case CODEC_ID_PCM_S16BE:
1047 if (st->codec.bits_per_sample == 8)
1048 st->codec.codec_id = CODEC_ID_PCM_S8;
1050 case CODEC_ID_PCM_U8:
1051 st->codec.bit_rate = st->codec.sample_rate * 8;
1057 //Read QT version 1 fields. In version 0 theese dont exist
1059 printf("version =%d mp4=%d\n",version,c->mp4);
1060 printf("size-(16+20+16)=%d\n",size-(16+20+16));
1062 if((version==1) && size>=(16+20+16))
1064 get_be32(pb); /* samples per packet */
1065 get_be32(pb); /* bytes per packet */
1066 get_be32(pb); /* bytes per frame */
1067 get_be32(pb); /* bytes per sample */
1070 //Optional, additional atom-based fields
1072 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 ),
1073 (format >> 0) & 0xff,
1074 (format >> 8) & 0xff,
1075 (format >> 16) & 0xff,
1076 (format >> 24) & 0xff);
1078 MOV_atom_t a = { format, url_ftell(pb), size - (16 + 20 + 16 + 8) };
1079 mov_read_default(c, pb, a);
1084 //We should be down to 0 bytes here, but lets make sure.
1088 printf("skipping 0x%X bytes\n",size-(16+20));
1090 url_fskip(pb, size);
1096 //Unknown size, but lets do our best and skip the rest.
1098 printf("Strange size, skipping 0x%X bytes\n",size);
1100 url_fskip(pb, size);
1108 static int mov_read_stsc(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1110 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
1111 MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
1114 print_atom("stsc", atom);
1116 get_byte(pb); /* version */
1117 get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
1119 entries = get_be32(pb);
1121 printf("track[%i].stsc.entries = %i\n", c->fc->nb_streams-1, entries);
1123 sc->sample_to_chunk_sz = entries;
1124 sc->sample_to_chunk = (MOV_sample_to_chunk_tbl*) av_malloc(entries * sizeof(MOV_sample_to_chunk_tbl));
1125 if (!sc->sample_to_chunk)
1127 for(i=0; i<entries; i++) {
1128 sc->sample_to_chunk[i].first = get_be32(pb);
1129 sc->sample_to_chunk[i].count = get_be32(pb);
1130 sc->sample_to_chunk[i].id = get_be32(pb);
1132 /* 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); */
1138 static int mov_read_stss(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1140 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
1141 MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
1144 print_atom("stss", atom);
1146 get_byte(pb); /* version */
1147 get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
1149 entries = get_be32(pb);
1150 sc->keyframe_count = entries;
1152 av_log(NULL, AV_LOG_DEBUG, "keyframe_count = %ld\n", sc->keyframe_count);
1154 sc->keyframes = (long*) av_malloc(entries * sizeof(long));
1157 for(i=0; i<entries; i++) {
1158 sc->keyframes[i] = get_be32(pb);
1160 /* av_log(NULL, AV_LOG_DEBUG, "keyframes[]=%ld\n", sc->keyframes[i]); */
1166 static int mov_read_stsz(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1168 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
1169 MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
1172 print_atom("stsz", atom);
1174 get_byte(pb); /* version */
1175 get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
1177 sc->sample_size = get_be32(pb);
1178 entries = get_be32(pb);
1179 sc->sample_count = entries;
1181 printf("sample_size = %ld sample_count = %ld\n", sc->sample_size, sc->sample_count);
1184 return 0; /* there isn't any table following */
1185 sc->sample_sizes = (long*) av_malloc(entries * sizeof(long));
1186 if (!sc->sample_sizes)
1188 for(i=0; i<entries; i++) {
1189 sc->sample_sizes[i] = get_be32(pb);
1191 /* printf("sample_sizes[]=%ld\n", sc->sample_sizes[i]); */
1197 static int mov_read_stts(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1199 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
1200 //MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
1203 int64_t total_sample_count=0;
1205 print_atom("stts", atom);
1207 get_byte(pb); /* version */
1208 get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
1209 entries = get_be32(pb);
1213 printf("track[%i].stts.entries = %i\n", c->fc->nb_streams-1, entries);
1215 for(i=0; i<entries; i++) {
1216 int sample_duration;
1219 sample_count=get_be32(pb);
1220 sample_duration = get_be32(pb);
1222 printf("sample_count=%d, sample_duration=%d\n",sample_count,sample_duration);
1224 duration+=sample_duration*sample_count;
1225 total_sample_count+=sample_count;
1227 #if 0 //We calculate an average instead, needed by .mp4-files created with nec e606 3g phone
1229 if (!i && st->codec.codec_type==CODEC_TYPE_VIDEO) {
1230 st->codec.frame_rate_base = sample_duration ? sample_duration : 1;
1231 st->codec.frame_rate = c->streams[c->total_streams]->time_scale;
1233 printf("VIDEO FRAME RATE= %i (sd= %i)\n", st->codec.frame_rate, sample_duration);
1239 /*The stsd atom which contain codec type sometimes comes after the stts so we cannot check for codec_type*/
1243 &st->codec.frame_rate,
1244 &st->codec.frame_rate_base,
1245 c->streams[c->total_streams]->time_scale * total_sample_count,
1251 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);
1256 st->codec.frame_rate_base = 1;
1257 st->codec.frame_rate = c->streams[c->total_streams]->time_scale;
1262 static int mov_read_trak(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1265 MOVStreamContext *sc;
1267 print_atom("trak", atom);
1269 st = av_new_stream(c->fc, c->fc->nb_streams);
1271 sc = (MOVStreamContext*) av_mallocz(sizeof(MOVStreamContext));
1277 sc->sample_to_chunk_index = -1;
1279 st->codec.codec_type = CODEC_TYPE_MOV_OTHER;
1280 st->start_time = 0; /* XXX: check */
1281 st->duration = (c->duration * (int64_t)AV_TIME_BASE) / c->time_scale;
1282 c->streams[c->fc->nb_streams-1] = sc;
1284 return mov_read_default(c, pb, atom);
1287 static int mov_read_tkhd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1291 print_atom("tkhd", atom);
1293 st = c->fc->streams[c->fc->nb_streams-1];
1295 get_byte(pb); /* version */
1297 get_byte(pb); get_byte(pb);
1298 get_byte(pb); /* flags */
1300 MOV_TRACK_ENABLED 0x0001
1301 MOV_TRACK_IN_MOVIE 0x0002
1302 MOV_TRACK_IN_PREVIEW 0x0004
1303 MOV_TRACK_IN_POSTER 0x0008
1306 get_be32(pb); /* creation time */
1307 get_be32(pb); /* modification time */
1308 st->id = (int)get_be32(pb); /* track id (NOT 0 !)*/
1309 get_be32(pb); /* reserved */
1310 st->start_time = 0; /* check */
1311 st->duration = (get_be32(pb) * (int64_t)AV_TIME_BASE) / c->time_scale; /* duration */
1312 get_be32(pb); /* reserved */
1313 get_be32(pb); /* reserved */
1315 get_be16(pb); /* layer */
1316 get_be16(pb); /* alternate group */
1317 get_be16(pb); /* volume */
1318 get_be16(pb); /* reserved */
1320 url_fskip(pb, 36); /* display matrix */
1322 /* those are fixed-point */
1323 st->codec.width = get_be32(pb) >> 16; /* track width */
1324 st->codec.height = get_be32(pb) >> 16; /* track height */
1329 /* this atom should be null (from specs), but some buggy files put the 'moov' atom inside it... */
1330 /* like the files created with Adobe Premiere 5.0, for samples see */
1331 /* http://graphics.tudelft.nl/~wouter/publications/soundtests/ */
1332 static int mov_read_wide(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1337 print_atom("wide", atom);
1341 return 0; /* continue */
1342 if (get_be32(pb) != 0) { /* 0 sized mdat atom... use the 'wide' atom size */
1343 url_fskip(pb, atom.size - 4);
1346 atom.type = get_le32(pb);
1349 if (atom.type != MKTAG('m', 'd', 'a', 't')) {
1350 url_fskip(pb, atom.size);
1353 err = mov_read_mdat(c, pb, atom);
1362 static int null_read_packet(void *opaque, uint8_t *buf, int buf_size)
1367 static int mov_read_cmov(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1371 uint8_t *moov_data; /* uncompressed data */
1372 long cmov_len, moov_len;
1375 print_atom("cmov", atom);
1377 get_be32(pb); /* dcom atom */
1378 if (get_le32(pb) != MKTAG( 'd', 'c', 'o', 'm' ))
1380 if (get_le32(pb) != MKTAG( 'z', 'l', 'i', 'b' )) {
1381 dprintf("unknown compression for cmov atom !");
1384 get_be32(pb); /* cmvd atom */
1385 if (get_le32(pb) != MKTAG( 'c', 'm', 'v', 'd' ))
1387 moov_len = get_be32(pb); /* uncompressed size */
1388 cmov_len = atom.size - 6 * 4;
1390 cmov_data = (uint8_t *) av_malloc(cmov_len);
1393 moov_data = (uint8_t *) av_malloc(moov_len);
1398 get_buffer(pb, cmov_data, cmov_len);
1399 if(uncompress (moov_data, (uLongf *) &moov_len, (const Bytef *)cmov_data, cmov_len) != Z_OK)
1401 if(init_put_byte(&ctx, moov_data, moov_len, 0, NULL, null_read_packet, NULL, NULL) != 0)
1403 ctx.buf_end = ctx.buffer + moov_len;
1404 atom.type = MKTAG( 'm', 'o', 'o', 'v' );
1406 atom.size = moov_len;
1408 { int fd = open("/tmp/uncompheader.mov", O_WRONLY | O_CREAT); write(fd, moov_data, moov_len); close(fd); }
1410 ret = mov_read_default(c, &ctx, atom);
1418 static const MOVParseTableEntry mov_default_parse_table[] = {
1420 { MKTAG( 'c', 'o', '6', '4' ), mov_read_stco },
1421 { MKTAG( 'c', 'p', 'r', 't' ), mov_read_default },
1422 { MKTAG( 'c', 'r', 'h', 'd' ), mov_read_default },
1423 { MKTAG( 'c', 't', 't', 's' ), mov_read_leaf }, /* composition time to sample */
1424 { MKTAG( 'd', 'i', 'n', 'f' ), mov_read_default }, /* data information */
1425 { MKTAG( 'd', 'p', 'n', 'd' ), mov_read_leaf },
1426 { MKTAG( 'd', 'r', 'e', 'f' ), mov_read_leaf },
1427 { MKTAG( 'e', 'd', 't', 's' ), mov_read_default },
1428 { MKTAG( 'e', 'l', 's', 't' ), mov_read_leaf },
1429 { MKTAG( 'f', 'r', 'e', 'e' ), mov_read_leaf },
1430 { MKTAG( 'h', 'd', 'l', 'r' ), mov_read_hdlr },
1431 { MKTAG( 'h', 'i', 'n', 't' ), mov_read_leaf },
1432 { MKTAG( 'h', 'm', 'h', 'd' ), mov_read_leaf },
1433 { MKTAG( 'i', 'o', 'd', 's' ), mov_read_leaf },
1434 { MKTAG( 'm', 'd', 'a', 't' ), mov_read_mdat },
1435 { MKTAG( 'm', 'd', 'h', 'd' ), mov_read_mdhd },
1436 { MKTAG( 'm', 'd', 'i', 'a' ), mov_read_default },
1437 { MKTAG( 'm', 'i', 'n', 'f' ), mov_read_default },
1438 { MKTAG( 'm', 'o', 'o', 'v' ), mov_read_moov },
1439 { MKTAG( 'm', 'p', '4', 'a' ), mov_read_default },
1440 { MKTAG( 'm', 'p', '4', 's' ), mov_read_default },
1441 { MKTAG( 'm', 'p', '4', 'v' ), mov_read_default },
1442 { MKTAG( 'm', 'p', 'o', 'd' ), mov_read_leaf },
1443 { MKTAG( 'm', 'v', 'h', 'd' ), mov_read_mvhd },
1444 { MKTAG( 'n', 'm', 'h', 'd' ), mov_read_leaf },
1445 { MKTAG( 'o', 'd', 'h', 'd' ), mov_read_default },
1446 { MKTAG( 's', 'd', 'h', 'd' ), mov_read_default },
1447 { MKTAG( 's', 'k', 'i', 'p' ), mov_read_default },
1448 { MKTAG( 's', 'm', 'h', 'd' ), mov_read_leaf }, /* sound media info header */
1449 { MKTAG( 'S', 'M', 'I', ' ' ), mov_read_smi }, /* Sorrenson extension ??? */
1450 { MKTAG( 's', 't', 'b', 'l' ), mov_read_default },
1451 { MKTAG( 's', 't', 'c', 'o' ), mov_read_stco },
1452 { MKTAG( 's', 't', 'd', 'p' ), mov_read_default },
1453 { MKTAG( 's', 't', 's', 'c' ), mov_read_stsc },
1454 { MKTAG( 's', 't', 's', 'd' ), mov_read_stsd }, /* sample description */
1455 { MKTAG( 's', 't', 's', 'h' ), mov_read_default },
1456 { MKTAG( 's', 't', 's', 's' ), mov_read_stss }, /* sync sample */
1457 { MKTAG( 's', 't', 's', 'z' ), mov_read_stsz }, /* sample size */
1458 { MKTAG( 's', 't', 't', 's' ), mov_read_stts },
1459 { MKTAG( 't', 'k', 'h', 'd' ), mov_read_tkhd }, /* track header */
1460 { MKTAG( 't', 'r', 'a', 'k' ), mov_read_trak },
1461 { MKTAG( 't', 'r', 'e', 'f' ), mov_read_default }, /* not really */
1462 { MKTAG( 'u', 'd', 't', 'a' ), mov_read_leaf },
1463 { MKTAG( 'u', 'r', 'l', ' ' ), mov_read_leaf },
1464 { MKTAG( 'u', 'r', 'n', ' ' ), mov_read_leaf },
1465 { MKTAG( 'u', 'u', 'i', 'd' ), mov_read_default },
1466 { MKTAG( 'v', 'm', 'h', 'd' ), mov_read_leaf }, /* video media info header */
1467 { MKTAG( 'w', 'a', 'v', 'e' ), mov_read_default },
1469 { MKTAG( 'M', 'D', 'E', 'S' ), mov_read_leaf },
1471 { MKTAG( 'c', 'h', 'a', 'p' ), mov_read_leaf },
1472 { MKTAG( 'c', 'l', 'i', 'p' ), mov_read_default },
1473 { MKTAG( 'c', 'r', 'g', 'n' ), mov_read_leaf },
1474 { MKTAG( 'c', 't', 'a', 'b' ), mov_read_ctab },
1475 { MKTAG( 'e', 's', 'd', 's' ), mov_read_esds },
1476 { MKTAG( 'k', 'm', 'a', 't' ), mov_read_leaf },
1477 { MKTAG( 'm', 'a', 't', 't' ), mov_read_default },
1478 { MKTAG( 'r', 'd', 'r', 'f' ), mov_read_leaf },
1479 { MKTAG( 'r', 'm', 'd', 'a' ), mov_read_default },
1480 { MKTAG( 'r', 'm', 'd', 'r' ), mov_read_leaf },
1481 { MKTAG( 'r', 'm', 'r', 'a' ), mov_read_default },
1482 { MKTAG( 's', 'c', 'p', 't' ), mov_read_leaf },
1483 { MKTAG( 's', 's', 'r', 'c' ), mov_read_leaf },
1484 { MKTAG( 's', 'y', 'n', 'c' ), mov_read_leaf },
1485 { MKTAG( 't', 'c', 'm', 'd' ), mov_read_leaf },
1486 { MKTAG( 'w', 'i', 'd', 'e' ), mov_read_wide }, /* place holder */
1487 //{ MKTAG( 'r', 'm', 'q', 'u' ), mov_read_leaf },
1489 { MKTAG( 'c', 'm', 'o', 'v' ), mov_read_cmov },
1491 { MKTAG( 'c', 'm', 'o', 'v' ), mov_read_leaf },
1493 { 0L, mov_read_leaf }
1496 static void mov_free_stream_context(MOVStreamContext *sc)
1499 av_free(sc->chunk_offsets);
1500 av_free(sc->sample_to_chunk);
1501 av_free(sc->sample_sizes);
1502 av_free(sc->keyframes);
1503 av_free(sc->header_data);
1508 static inline uint32_t mov_to_tag(uint8_t *buf)
1510 return MKTAG(buf[0], buf[1], buf[2], buf[3]);
1513 static inline uint32_t to_be32(uint8_t *buf)
1515 return (buf[0] << 24) | (buf[1] << 16) | (buf[2] << 8) | buf[3];
1518 /* XXX: is it sufficient ? */
1519 static int mov_probe(AVProbeData *p)
1521 unsigned int offset;
1524 /* check file header */
1525 if (p->buf_size <= 12)
1529 /* ignore invalid offset */
1530 if ((offset + 8) > (unsigned int)p->buf_size)
1532 tag = mov_to_tag(p->buf + offset + 4);
1534 case MKTAG( 'm', 'o', 'o', 'v' ):
1535 case MKTAG( 'w', 'i', 'd', 'e' ):
1536 case MKTAG( 'f', 'r', 'e', 'e' ):
1537 case MKTAG( 'm', 'd', 'a', 't' ):
1538 case MKTAG( 'p', 'n', 'o', 't' ): /* detect movs with preview pics like ew.mov and april.mov */
1539 case MKTAG( 'u', 'd', 't', 'a' ): /* Packet Video PVAuthor adds this and a lot of more junk */
1540 return AVPROBE_SCORE_MAX;
1541 case MKTAG( 'f', 't', 'y', 'p' ):
1542 case MKTAG( 's', 'k', 'i', 'p' ):
1543 offset = to_be32(p->buf+offset) + offset;
1546 /* unrecognized tag */
1553 static int mov_read_header(AVFormatContext *s, AVFormatParameters *ap)
1555 MOVContext *mov = (MOVContext *) s->priv_data;
1556 ByteIOContext *pb = &s->pb;
1558 MOV_atom_t atom = { 0, 0, 0 };
1561 mov->parse_table = mov_default_parse_table;
1563 /* XXX: I think we should auto detect */
1564 if(s->iformat->name[1] == 'p')
1567 if(!url_is_streamed(pb)) /* .mov and .mp4 aren't streamable anyway (only progressive download if moov is before mdat) */
1568 atom.size = url_filesize(url_fileno(pb));
1570 atom.size = 0x7FFFFFFFFFFFFFFFLL;
1573 printf("filesz=%Ld\n", atom.size);
1576 /* check MOV header */
1577 err = mov_read_default(mov, pb, atom);
1578 if (err<0 || (!mov->found_moov && !mov->found_mdat)) {
1579 av_log(s, AV_LOG_ERROR, "mov: header not found !!! (err:%d, moov:%d, mdat:%d) pos:%lld\n",
1580 err, mov->found_moov, mov->found_mdat, url_ftell(pb));
1584 printf("on_parse_exit_offset=%d\n", (int) url_ftell(pb));
1586 /* some cleanup : make sure we are on the mdat atom */
1587 if(!url_is_streamed(pb) && (url_ftell(pb) != mov->mdat_offset))
1588 url_fseek(pb, mov->mdat_offset, SEEK_SET);
1590 mov->next_chunk_offset = mov->mdat_offset; /* initialise reading */
1593 printf("mdat_reset_offset=%d\n", (int) url_ftell(pb));
1597 printf("streams= %d\n", s->nb_streams);
1599 mov->total_streams = nb = s->nb_streams;
1602 for(i=0; i<s->nb_streams;) {
1603 if(s->streams[i]->codec.codec_type == CODEC_TYPE_MOV_OTHER) {/* not audio, not video, delete */
1604 av_free(s->streams[i]);
1605 for(j=i+1; j<s->nb_streams; j++)
1606 s->streams[j-1] = s->streams[j];
1611 for(i=0; i<s->nb_streams;i++) {
1612 MOVStreamContext *sc;
1613 sc = (MOVStreamContext *)s->streams[i]->priv_data;
1615 sc->is_ff_stream = 1;
1619 printf("real streams= %d\n", s->nb_streams);
1624 /* Yes, this is ugly... I didn't write the specs of QT :p */
1625 /* XXX:remove useless commented code sometime */
1626 static int mov_read_packet(AVFormatContext *s, AVPacket *pkt)
1628 MOVContext *mov = (MOVContext *) s->priv_data;
1629 MOVStreamContext *sc;
1630 int64_t offset = 0x0FFFFFFFFFFFFFFFLL;
1635 #ifdef MOV_SPLIT_CHUNKS
1641 idx = sc->sample_to_chunk_index;
1643 if (idx < 0) return 0;
1644 size = sc->sample_sizes[sc->current_sample];
1646 sc->current_sample++;
1647 sc->left_in_chunk--;
1649 if (sc->left_in_chunk <= 0)
1651 offset = mov->next_chunk_offset;
1652 /* extract the sample */
1660 for(i=0; i<mov->total_streams; i++) {
1661 MOVStreamContext *msc = mov->streams[i];
1662 //printf("MOCHUNK %ld %d %p pos:%Ld\n", mov->streams[i]->next_chunk, mov->total_streams, mov->streams[i], url_ftell(&s->pb));
1663 if ((msc->next_chunk < msc->chunk_count) && msc->next_chunk >= 0
1664 && (msc->chunk_offsets[msc->next_chunk] < offset)) {
1666 offset = msc->chunk_offsets[msc->next_chunk];
1667 //printf("SELETED %Ld i:%d\n", offset, i);
1670 if (!sc || offset==0x0FFFFFFFFFFFFFFFLL)
1675 if(mov->next_chunk_offset < offset) { /* some meta data */
1676 url_fskip(&s->pb, (offset - mov->next_chunk_offset));
1677 mov->next_chunk_offset = offset;
1680 //printf("chunk: [%i] %lli -> %lli\n", st_id, mov->next_chunk_offset, offset);
1681 if(!sc->is_ff_stream) {
1682 url_fskip(&s->pb, (offset - mov->next_chunk_offset));
1683 mov->next_chunk_offset = offset;
1684 offset = 0x0FFFFFFFFFFFFFFFLL;
1688 /* now get the chunk size... */
1690 for(i=0; i<mov->total_streams; i++) {
1691 MOVStreamContext *msc = mov->streams[i];
1692 if ((msc->next_chunk < msc->chunk_count)
1693 && ((msc->chunk_offsets[msc->next_chunk] - offset) < size))
1694 size = msc->chunk_offsets[msc->next_chunk] - offset;
1697 #ifdef MOV_MINOLTA_FIX
1698 //Make sure that size is according to sample_size (Needed by .mov files
1699 //created on a Minolta Dimage Xi where audio chunks contains waste data in the end)
1700 //Maybe we should really not only check sc->sample_size, but also sc->sample_sizes
1701 //but I have no such movies
1702 if (sc->sample_size > 0) {
1704 for(i=0; i<(sc->sample_to_chunk_sz); i++) {
1705 if( (sc->sample_to_chunk[i].first)<=(sc->next_chunk) && (sc->sample_size>0) )
1707 // I can't figure out why for PCM audio sample_size is always 1
1708 // (it should actually be channels*bits_per_second/8) but it is.
1709 AVCodecContext* cod = &s->streams[sc->ffindex]->codec;
1710 if (sc->sample_size == 1 && (cod->codec_id == CODEC_ID_PCM_S16BE || cod->codec_id == CODEC_ID_PCM_S16LE))
1711 foundsize=(sc->sample_to_chunk[i].count*cod->channels*cod->bits_per_sample)/8;
1713 foundsize=sc->sample_to_chunk[i].count*sc->sample_size;
1716 /*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);*/
1719 if( (foundsize>0) && (foundsize<size) )
1722 /*printf("this size should actually be %d\n",foundsize);*/
1727 #endif //MOV_MINOLTA_FIX
1729 #ifdef MOV_SPLIT_CHUNKS
1730 /* split chunks into samples */
1731 if (sc->sample_size == 0) {
1732 int idx = sc->sample_to_chunk_index;
1733 if ((idx + 1 < sc->sample_to_chunk_sz)
1734 && (sc->next_chunk >= sc->sample_to_chunk[idx + 1].first))
1736 sc->sample_to_chunk_index = idx;
1737 if (idx >= 0 && sc->sample_to_chunk[idx].count != 1) {
1739 /* we'll have to get those samples before next chunk */
1740 sc->left_in_chunk = sc->sample_to_chunk[idx].count - 1;
1741 size = sc->sample_sizes[sc->current_sample];
1744 sc->current_sample++;
1749 //printf("chunk: [%i] %lli -> %lli (%i)\n", st_id, offset, offset + size, size);
1750 if(size == 0x0FFFFFFF)
1751 size = mov->mdat_size + mov->mdat_offset - offset;
1756 url_fseek(&s->pb, offset, SEEK_SET);
1758 //printf("READCHUNK hlen: %d %d off: %Ld pos:%Ld\n", size, sc->header_len, offset, url_ftell(&s->pb));
1759 if (sc->header_len > 0) {
1760 av_new_packet(pkt, size + sc->header_len);
1761 memcpy(pkt->data, sc->header_data, sc->header_len);
1762 get_buffer(&s->pb, pkt->data + sc->header_len, size);
1764 av_freep(&sc->header_data);
1767 av_new_packet(pkt, size);
1768 get_buffer(&s->pb, pkt->data, pkt->size);
1770 pkt->stream_index = sc->ffindex;
1772 // If the keyframes table exists, mark any samples that are in the table as key frames.
1773 // If no table exists, treat very sample as a key frame.
1774 if (sc->keyframes) {
1776 b = sc->keyframe_count - 1;
1779 m = (a + b + 1) >> 1;
1780 if (sc->keyframes[m] > sc->current_sample) {
1787 if (sc->keyframes[a] == sc->current_sample)
1788 pkt->flags |= PKT_FLAG_KEY;
1791 pkt->flags |= PKT_FLAG_KEY;
1795 printf("Packet (%d, %d, %ld) ", pkt->stream_index, st_id, pkt->size);
1797 printf("%02x ", pkt->data[i]);
1799 printf("%c ", (pkt->data[i]) & 0x7F);
1804 mov->next_chunk_offset = offset + size;
1809 static int mov_read_close(AVFormatContext *s)
1812 MOVContext *mov = (MOVContext *) s->priv_data;
1813 for(i=0; i<mov->total_streams; i++)
1814 mov_free_stream_context(mov->streams[i]);
1815 /* free color tabs */
1816 for(i=0; i<mov->ctab_size; i++)
1817 av_freep(&mov->ctab[i]);
1818 av_freep(&mov->ctab);
1822 static AVInputFormat mov_iformat = {
1824 "QuickTime/MPEG4 format",
1834 av_register_input_format(&mov_iformat);