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
31 * Seek function by Gael Chardon gael.dev@4now.net
33 * Features and limitations:
34 * - reads most of the QT files I have (at least the structure),
35 * the exceptions are .mov with zlib compressed headers ('cmov' section). It shouldn't be hard to implement.
36 * FIXED, Francois Revol, 07/17/2002
37 * - ffmpeg has nearly none of the usual QuickTime codecs,
38 * although I succesfully dumped raw and mp3 audio tracks off .mov files.
39 * Sample QuickTime files with mp3 audio can be found at: http://www.3ivx.com/showcase.html
40 * - .mp4 parsing is still hazardous, although the format really is QuickTime with some minor changes
41 * (to make .mov parser crash maybe ?), despite what they say in the MPEG FAQ at
42 * http://mpeg.telecomitalialab.com/faq.htm
43 * - the code is quite ugly... maybe I won't do it recursive next time :-)
44 * - seek is not supported with files that contain edit list
46 * Funny I didn't know about http://sourceforge.net/projects/qt-ffmpeg/
47 * when coding this :) (it's a writer anyway)
49 * Reference documents:
50 * http://www.geocities.com/xhelmboyx/quicktime/formats/qtm-layout.txt
52 * http://developer.apple.com/documentation/QuickTime/QTFF/
53 * http://developer.apple.com/documentation/QuickTime/QTFF/qtff.pdf
54 * QuickTime is a trademark of Apple (AFAIK :))
63 #include "qtpalette.h"
66 /* Allows seeking (MOV_SPLIT_CHUNKS should also be defined) */
69 /* allows chunk splitting - should work now... */
70 /* in case you can't read a file, try commenting */
71 #define MOV_SPLIT_CHUNKS
73 /* Special handling for movies created with Minolta Dimaxe Xi*/
74 /* this fix should not interfere with other .mov files, but just in case*/
75 #define MOV_MINOLTA_FIX
77 /* some streams in QT (and in MP4 mostly) aren't either video nor audio */
78 /* so we first list them as this, then clean up the list of streams we give back, */
79 /* getting rid of these */
80 #define CODEC_TYPE_MOV_OTHER (enum CodecType) 2
82 static const CodecTag mov_video_tags[] = {
83 /* { CODEC_ID_, MKTAG('c', 'v', 'i', 'd') }, *//* Cinepak */
84 /* { CODEC_ID_H263, MKTAG('r', 'a', 'w', ' ') }, *//* Uncompressed RGB */
85 /* { CODEC_ID_H263, MKTAG('Y', 'u', 'v', '2') }, *//* Uncompressed YUV422 */
86 /* { CODEC_ID_RAWVIDEO, MKTAG('A', 'V', 'U', 'I') }, *//* YUV with alpha-channel (AVID Uncompressed) */
91 { CODEC_ID_MJPEG, MKTAG('j', 'p', 'e', 'g') }, /* PhotoJPEG */
92 { CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'e', 'g') }, /* MPEG */
93 { CODEC_ID_MJPEG, MKTAG('m', 'j', 'p', 'a') }, /* Motion-JPEG (format A) */
94 { CODEC_ID_MJPEG, MKTAG('m', 'j', 'p', 'b') }, /* Motion-JPEG (format B) */
95 { CODEC_ID_MJPEG, MKTAG('A', 'V', 'D', 'J') }, /* MJPEG with alpha-channel (AVID JFIF meridien compressed) */
96 /* { CODEC_ID_MJPEG, MKTAG('A', 'V', 'R', 'n') }, *//* MJPEG with alpha-channel (AVID ABVB/Truevision NuVista) */
97 /* { CODEC_ID_GIF, MKTAG('g', 'i', 'f', ' ') }, *//* embedded gif files as frames (usually one "click to play movie" frame) */
99 { CODEC_ID_SVQ1, MKTAG('S', 'V', 'Q', '1') }, /* Sorenson Video v1 */
100 { CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', '1') }, /* Sorenson Video v1 */
101 { CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', 'i') }, /* Sorenson Video v1 (from QT specs)*/
102 { CODEC_ID_SVQ3, MKTAG('S', 'V', 'Q', '3') }, /* Sorenson Video v3 */
103 { CODEC_ID_MPEG4, MKTAG('m', 'p', '4', 'v') },
104 { CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', 'X') }, /* OpenDiVX *//* sample files at http://heroinewarrior.com/xmovie.php3 use this tag */
105 { CODEC_ID_MPEG4, MKTAG('X', 'V', 'I', 'D') },
106 { CODEC_ID_MPEG4, MKTAG('3', 'I', 'V', '2') }, /* experimental: 3IVX files before ivx D4 4.5.1 */
107 /* { CODEC_ID_, MKTAG('I', 'V', '5', '0') }, *//* Indeo 5.0 */
108 { CODEC_ID_H263, MKTAG('h', '2', '6', '3') }, /* H263 */
109 { CODEC_ID_H263, MKTAG('s', '2', '6', '3') }, /* H263 ?? works */
110 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', ' ') }, /* DV NTSC */
111 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', 'p') }, /* DV PAL */
112 /* { CODEC_ID_DVVIDEO, MKTAG('A', 'V', 'd', 'v') }, *//* AVID dv */
113 { CODEC_ID_VP3, MKTAG('V', 'P', '3', '1') }, /* On2 VP3 */
114 { CODEC_ID_RPZA, MKTAG('r', 'p', 'z', 'a') }, /* Apple Video (RPZA) */
115 { CODEC_ID_CINEPAK, MKTAG('c', 'v', 'i', 'd') }, /* Cinepak */
116 { CODEC_ID_8BPS, MKTAG('8', 'B', 'P', 'S') }, /* Planar RGB (8BPS) */
117 { CODEC_ID_SMC, MKTAG('s', 'm', 'c', ' ') }, /* Apple Graphics (SMC) */
118 { CODEC_ID_QTRLE, MKTAG('r', 'l', 'e', ' ') }, /* Apple Animation (RLE) */
119 { CODEC_ID_QDRAW, MKTAG('q', 'd', 'r', 'w') }, /* QuickDraw */
120 { CODEC_ID_H264, MKTAG('a', 'v', 'c', '1') }, /* AVC-1/H.264 */
121 { CODEC_ID_NONE, 0 },
124 static const CodecTag mov_audio_tags[] = {
125 /* { CODEC_ID_PCM_S16BE, MKTAG('N', 'O', 'N', 'E') }, *//* uncompressed */
126 { CODEC_ID_PCM_S16BE, MKTAG('t', 'w', 'o', 's') }, /* 16 bits */
127 /* { CODEC_ID_PCM_S8, MKTAG('t', 'w', 'o', 's') },*/ /* 8 bits */
128 { CODEC_ID_PCM_U8, MKTAG('r', 'a', 'w', ' ') }, /* 8 bits unsigned */
129 { CODEC_ID_PCM_S16LE, MKTAG('s', 'o', 'w', 't') }, /* */
130 { CODEC_ID_PCM_MULAW, MKTAG('u', 'l', 'a', 'w') }, /* */
131 { CODEC_ID_PCM_ALAW, MKTAG('a', 'l', 'a', 'w') }, /* */
132 { CODEC_ID_ADPCM_IMA_QT, MKTAG('i', 'm', 'a', '4') }, /* IMA-4 ADPCM */
133 { CODEC_ID_MACE3, MKTAG('M', 'A', 'C', '3') }, /* Macintosh Audio Compression and Expansion 3:1 */
134 { CODEC_ID_MACE6, MKTAG('M', 'A', 'C', '6') }, /* Macintosh Audio Compression and Expansion 6:1 */
136 { CODEC_ID_MP2, MKTAG('.', 'm', 'p', '3') }, /* MPEG layer 3 */ /* sample files at http://www.3ivx.com/showcase.html use this tag */
137 { CODEC_ID_MP2, 0x6D730055 }, /* MPEG layer 3 */
138 { CODEC_ID_MP2, 0x5500736D }, /* MPEG layer 3 *//* XXX: check endianness */
139 /* { CODEC_ID_OGG_VORBIS, MKTAG('O', 'g', 'g', 'S') }, *//* sample files at http://heroinewarrior.com/xmovie.php3 use this tag */
141 { CODEC_ID_AAC, MKTAG('m', 'p', '4', 'a') }, /* MPEG-4 AAC */
142 /* The standard for mpeg4 audio is still not normalised AFAIK anyway */
143 { CODEC_ID_AMR_NB, MKTAG('s', 'a', 'm', 'r') }, /* AMR-NB 3gp */
144 { CODEC_ID_AMR_WB, MKTAG('s', 'a', 'w', 'b') }, /* AMR-WB 3gp */
145 { CODEC_ID_AC3, MKTAG('m', 's', 0x20, 0x00) }, /* Dolby AC-3 */
146 { CODEC_ID_ALAC,MKTAG('a', 'l', 'a', 'c') }, /* Apple Lossless */
147 { CODEC_ID_NONE, 0 },
150 /* the QuickTime file format is quite convoluted...
151 * it has lots of index tables, each indexing something in another one...
152 * Here we just use what is needed to read the chunks
155 typedef struct MOV_sample_to_chunk_tbl {
159 } MOV_sample_to_chunk_tbl;
164 int64_t size; /* total size (excluding the size and type fields) */
176 uint32_t flags; // 24bit
178 /* 0x03 ESDescrTag */
180 #define MP4ODescrTag 0x01
181 #define MP4IODescrTag 0x02
182 #define MP4ESDescrTag 0x03
183 #define MP4DecConfigDescrTag 0x04
184 #define MP4DecSpecificDescrTag 0x05
185 #define MP4SLConfigDescrTag 0x06
186 #define MP4ContentIdDescrTag 0x07
187 #define MP4SupplContentIdDescrTag 0x08
188 #define MP4IPIPtrDescrTag 0x09
189 #define MP4IPMPPtrDescrTag 0x0A
190 #define MP4IPMPDescrTag 0x0B
191 #define MP4RegistrationDescrTag 0x0D
192 #define MP4ESIDIncDescrTag 0x0E
193 #define MP4ESIDRefDescrTag 0x0F
194 #define MP4FileIODescrTag 0x10
195 #define MP4FileODescrTag 0x11
196 #define MP4ExtProfileLevelDescrTag 0x13
197 #define MP4ExtDescrTagsStart 0x80
198 #define MP4ExtDescrTagsEnd 0xFE
199 uint8_t stream_priority;
201 /* 0x04 DecConfigDescrTag */
202 uint8_t object_type_id;
204 /* XXX: really streamType is
205 * only 6bit, followed by:
209 uint32_t buffer_size_db; // 24
210 uint32_t max_bitrate;
211 uint32_t avg_bitrate;
213 /* 0x05 DecSpecificDescrTag */
214 uint8_t decoder_cfg_len;
215 uint8_t *decoder_cfg;
217 /* 0x06 SLConfigDescrTag */
218 uint8_t sl_config_len;
222 struct MOVParseTableEntry;
224 typedef struct Time2Sample{
229 typedef struct MOVStreamContext {
230 int ffindex; /* the ffmpeg stream id */
231 int is_ff_stream; /* Is this stream presented to ffmpeg ? i.e. is this an audio or video stream ? */
234 int64_t *chunk_offsets;
236 Time2Sample *stts_data;
238 Time2Sample *ctts_data;
239 int edit_count; /* number of 'edit' (elst atom) */
240 long sample_to_chunk_sz;
241 MOV_sample_to_chunk_tbl *sample_to_chunk;
242 long sample_to_chunk_index;
243 int sample_to_time_index;
244 long sample_to_time_sample;
245 uint64_t sample_to_time_time;
246 int sample_to_ctime_index;
247 int sample_to_ctime_sample;
255 long left_in_chunk; /* how many samples before next chunk */
256 /* specific MPEG4 header which is added at the beginning of the stream */
257 unsigned int header_len;
258 uint8_t *header_data;
262 typedef struct MOVContext {
263 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) */
266 int duration; /* duration of the longest track */
267 int found_moov; /* when both 'moov' and 'mdat' sections has been found */
268 int found_mdat; /* we suppose we have enough data to read the file */
271 int ni; ///< non interleaved mode
273 /* some streams listed here aren't presented to the ffmpeg API, since they aren't either video nor audio
274 * but we need the info to be able to skip data from those streams in the 'mdat' section
276 MOVStreamContext *streams[MAX_STREAMS];
278 int64_t next_chunk_offset;
279 MOVStreamContext *partial; /* != 0 : there is still to read in the current chunk */
281 MOV_ctab_t **ctab; /* color tables */
282 const struct MOVParseTableEntry *parse_table; /* could be eventually used to change the table */
283 /* NOTE: for recursion save to/ restore from local variable! */
285 AVPaletteControl palette_control;
289 /* XXX: it's the first time I make a recursive parser I think... sorry if it's ugly :P */
291 /* those functions parse an atom */
293 1: found what I wanted, exit
294 0: continue to parse next atom
295 -1: error occured, exit
297 typedef int (*mov_parse_function)(MOVContext *ctx, ByteIOContext *pb, MOV_atom_t atom);
299 /* links atom IDs to parse functions */
300 typedef struct MOVParseTableEntry {
302 mov_parse_function func;
303 } MOVParseTableEntry;
307 * XXX: static sux, even more in a multithreaded environment...
308 * Avoid them. This is here just to help debugging.
310 static int debug_indent = 0;
311 void print_atom(const char *str, MOV_atom_t atom)
314 tag = (unsigned int) atom.type;
316 if(tag == 0) tag = MKTAG('N', 'U', 'L', 'L');
318 av_log(NULL, AV_LOG_DEBUG, "|");
319 av_log(NULL, AV_LOG_DEBUG, "parse:");
320 av_log(NULL, AV_LOG_DEBUG, " %s: tag=%c%c%c%c offset=0x%x size=0x%x\n",
325 (unsigned int)atom.offset,
326 (unsigned int)atom.size);
327 assert((unsigned int)atom.size < 0x7fffffff);// catching errors
330 #define print_atom(a,b)
334 static int mov_read_leaf(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
336 print_atom("leaf", atom);
339 url_fskip(pb, atom.size);
340 /* url_seek(pb, atom_offset+atom.size, SEEK_SET); */
344 static int mov_read_default(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
346 int64_t total_size = 0;
352 print_atom("default", atom);
356 a.offset = atom.offset;
359 atom.size = 0x7fffffffffffffffLL;
360 while(((total_size + 8) < atom.size) && !url_feof(pb) && !err) {
364 a.size = get_be32(pb);
365 a.type = get_le32(pb);
369 //av_log(NULL, AV_LOG_DEBUG, "type: %08x %.4s sz: %Lx %Lx %Lx\n", type, (char*)&type, size, atom.size, total_size);
370 if (a.size == 1) { /* 64 bit extended size */
371 a.size = get_be64(pb) - 8;
376 a.size = atom.size - total_size;
380 for (i = 0; c->parse_table[i].type != 0L
381 && c->parse_table[i].type != a.type; i++)
389 // av_log(NULL, AV_LOG_DEBUG, " i=%ld\n", i);
390 if (c->parse_table[i].type == 0) { /* skip leaf atoms data */
391 // url_seek(pb, atom.offset+atom.size, SEEK_SET);
393 print_atom("unknown", a);
395 url_fskip(pb, a.size);
398 //char b[5] = { type & 0xff, (type >> 8) & 0xff, (type >> 16) & 0xff, (type >> 24) & 0xff, 0 };
399 //print_atom(b, type, offset, size);
401 err = (c->parse_table[i].func)(c, pb, a);
405 total_size += a.size;
408 if (!err && total_size < atom.size && atom.size < 0x7ffff) {
409 //av_log(NULL, AV_LOG_DEBUG, "RESET %Ld %Ld err:%d\n", atom.size, total_size, err);
410 url_fskip(pb, atom.size - total_size);
419 static int mov_read_ctab(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
422 url_fskip(pb, atom.size); // for now
424 VERY VERY BROKEN, NEVER execute this, needs rewrite
427 c->ctab = av_realloc(c->ctab, ++c->ctab_size);
428 t = c->ctab[c->ctab_size];
429 t->seed = get_be32(pb);
430 t->flags = get_be16(pb);
431 t->size = get_be16(pb) + 1;
432 len = 2 * t->size * 4;
434 t->clrs = av_malloc(len); // 16bit A R G B
436 get_buffer(pb, t->clrs, len);
443 static int mov_read_hdlr(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
445 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
450 print_atom("hdlr", atom);
452 get_byte(pb); /* version */
453 get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
456 ctype = get_le32(pb);
457 type = get_le32(pb); /* component subtype */
460 av_log(NULL, AV_LOG_DEBUG, "ctype= %c%c%c%c (0x%08lx)\n", *((char *)&ctype), ((char *)&ctype)[1], ((char *)&ctype)[2], ((char *)&ctype)[3], (long) ctype);
461 av_log(NULL, AV_LOG_DEBUG, "stype= %c%c%c%c\n", *((char *)&type), ((char *)&type)[1], ((char *)&type)[2], ((char *)&type)[3]);
464 /* XXX: yeah this is ugly... */
465 if(ctype == MKTAG('m', 'h', 'l', 'r')) { /* MOV */
466 if(type == MKTAG('v', 'i', 'd', 'e'))
468 else if(type == MKTAG('s', 'o', 'u', 'n'))
470 } else if(ctype == 0) { /* MP4 */
471 if(type == MKTAG('v', 'i', 'd', 'e'))
473 else if(type == MKTAG('s', 'o', 'u', 'n'))
475 else if(type == MKTAG('o', 'd', 's', 'm'))
477 else if(type == MKTAG('s', 'd', 's', 'm'))
479 } else puts("hdlr: meta");
482 if(ctype == MKTAG('m', 'h', 'l', 'r')) { /* MOV */
483 /* helps parsing the string hereafter... */
485 if(type == MKTAG('v', 'i', 'd', 'e'))
486 st->codec.codec_type = CODEC_TYPE_VIDEO;
487 else if(type == MKTAG('s', 'o', 'u', 'n'))
488 st->codec.codec_type = CODEC_TYPE_AUDIO;
489 } else if(ctype == 0) { /* MP4 */
490 /* helps parsing the string hereafter... */
492 if(type == MKTAG('v', 'i', 'd', 'e'))
493 st->codec.codec_type = CODEC_TYPE_VIDEO;
494 else if(type == MKTAG('s', 'o', 'u', 'n'))
495 st->codec.codec_type = CODEC_TYPE_AUDIO;
497 get_be32(pb); /* component manufacture */
498 get_be32(pb); /* component flags */
499 get_be32(pb); /* component flags mask */
502 return 0; /* nothing left to read */
503 /* XXX: MP4 uses a C string, not a pascal one */
508 while(get_byte(pb) && (++len < (atom.size - 24)));
510 /* .mov: PASCAL string */
516 buf = (uint8_t*) av_malloc(len+1);
518 get_buffer(pb, buf, len);
520 av_log(NULL, AV_LOG_DEBUG, "**buf='%s'\n", buf);
527 url_fskip(pb, atom.size - (url_ftell(pb) - atom.offset));
531 static int mov_mp4_read_descr_len(ByteIOContext *pb)
536 int c = get_byte(pb);
537 len = (len << 7) | (c & 0x7f);
544 static int mov_mp4_read_descr(ByteIOContext *pb, int *tag)
548 len = mov_mp4_read_descr_len(pb);
550 av_log(NULL, AV_LOG_DEBUG, "MPEG4 description: tag=0x%02x len=%d\n", *tag, len);
555 static inline unsigned int get_be24(ByteIOContext *s)
558 val = get_byte(s) << 16;
559 val |= get_byte(s) << 8;
564 static int mov_read_esds(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
566 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
567 MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
568 int64_t start_pos = url_ftell(pb);
571 print_atom("esds", atom);
573 /* Well, broken but suffisant for some MP4 streams */
574 get_be32(pb); /* version + flags */
575 len = mov_mp4_read_descr(pb, &tag);
576 if (tag == MP4ESDescrTag) {
577 get_be16(pb); /* ID */
578 get_byte(pb); /* priority */
580 get_be16(pb); /* ID */
582 len = mov_mp4_read_descr(pb, &tag);
583 if (tag == MP4DecConfigDescrTag) {
584 sc->esds.object_type_id = get_byte(pb);
585 sc->esds.stream_type = get_byte(pb);
586 sc->esds.buffer_size_db = get_be24(pb);
587 sc->esds.max_bitrate = get_be32(pb);
588 sc->esds.avg_bitrate = get_be32(pb);
590 len = mov_mp4_read_descr(pb, &tag);
591 //av_log(NULL, AV_LOG_DEBUG, "LEN %d TAG %d m:%d a:%d\n", len, tag, sc->esds.max_bitrate, sc->esds.avg_bitrate);
592 if (tag == MP4DecSpecificDescrTag) {
594 av_log(NULL, AV_LOG_DEBUG, "Specific MPEG4 header len=%d\n", len);
596 st->codec.extradata = (uint8_t*) av_mallocz(len + FF_INPUT_BUFFER_PADDING_SIZE);
597 if (st->codec.extradata) {
598 get_buffer(pb, st->codec.extradata, len);
599 st->codec.extradata_size = len;
603 /* in any case, skip garbage */
604 url_fskip(pb, atom.size - ((url_ftell(pb) - start_pos)));
608 /* this atom contains actual media data */
609 static int mov_read_mdat(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
611 print_atom("mdat", atom);
613 if(atom.size == 0) /* wrong one (MP4) */
616 c->mdat_offset = atom.offset;
617 c->mdat_size = atom.size;
619 return 1; /* found both, just go */
620 url_fskip(pb, atom.size);
621 return 0; /* now go for moov */
624 /* this atom should contain all header atoms */
625 static int mov_read_moov(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
629 print_atom("moov", atom);
631 err = mov_read_default(c, pb, atom);
632 /* we parsed the 'moov' atom, we can terminate the parsing as soon as we find the 'mdat' */
633 /* so we don't parse the whole file if over a network */
636 return 1; /* found both, just go */
637 return 0; /* now go for mdat */
641 static int mov_read_mdhd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
643 print_atom("mdhd", atom);
645 get_byte(pb); /* version */
647 get_byte(pb); get_byte(pb);
648 get_byte(pb); /* flags */
650 get_be32(pb); /* creation time */
651 get_be32(pb); /* modification time */
653 c->streams[c->fc->nb_streams-1]->time_scale = get_be32(pb);
656 av_log(NULL, AV_LOG_DEBUG, "track[%i].time_scale = %i\n", c->fc->nb_streams-1, c->streams[c->fc->nb_streams-1]->time_scale); /* time scale */
658 get_be32(pb); /* duration */
660 get_be16(pb); /* language */
661 get_be16(pb); /* quality */
666 static int mov_read_mvhd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
668 print_atom("mvhd", atom);
670 get_byte(pb); /* version */
671 get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
673 get_be32(pb); /* creation time */
674 get_be32(pb); /* modification time */
675 c->time_scale = get_be32(pb); /* time scale */
677 av_log(NULL, AV_LOG_DEBUG, "time scale = %i\n", c->time_scale);
679 c->duration = get_be32(pb); /* duration */
680 get_be32(pb); /* preferred scale */
682 get_be16(pb); /* preferred volume */
684 url_fskip(pb, 10); /* reserved */
686 url_fskip(pb, 36); /* display matrix */
688 get_be32(pb); /* preview time */
689 get_be32(pb); /* preview duration */
690 get_be32(pb); /* poster time */
691 get_be32(pb); /* selection time */
692 get_be32(pb); /* selection duration */
693 get_be32(pb); /* current time */
694 get_be32(pb); /* next track ID */
699 static int mov_read_smi(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
701 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
703 if((uint64_t)atom.size > (1<<30))
706 // currently SVQ3 decoder expect full STSD header - so let's fake it
707 // this should be fixed and just SMI header should be passed
708 av_free(st->codec.extradata);
709 st->codec.extradata_size = 0x5a + atom.size;
710 st->codec.extradata = (uint8_t*) av_mallocz(st->codec.extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
712 if (st->codec.extradata) {
713 strcpy(st->codec.extradata, "SVQ3"); // fake
714 get_buffer(pb, st->codec.extradata + 0x5a, atom.size);
715 //av_log(NULL, AV_LOG_DEBUG, "Reading SMI %Ld %s\n", atom.size, (char*)st->codec.extradata + 0x5a);
717 url_fskip(pb, atom.size);
722 static int mov_read_avcC(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
724 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
726 if((uint64_t)atom.size > (1<<30))
729 av_free(st->codec.extradata);
731 st->codec.extradata_size = atom.size;
732 st->codec.extradata = (uint8_t*) av_mallocz(st->codec.extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
734 if (st->codec.extradata) {
735 get_buffer(pb, st->codec.extradata, atom.size);
737 url_fskip(pb, atom.size);
742 static int mov_read_stco(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
744 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
745 MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
746 unsigned int i, entries;
748 print_atom("stco", atom);
750 get_byte(pb); /* version */
751 get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
753 entries = get_be32(pb);
755 if(entries >= UINT_MAX/sizeof(int64_t))
758 sc->chunk_count = entries;
759 sc->chunk_offsets = (int64_t*) av_malloc(entries * sizeof(int64_t));
760 if (!sc->chunk_offsets)
762 if (atom.type == MKTAG('s', 't', 'c', 'o')) {
763 for(i=0; i<entries; i++) {
764 sc->chunk_offsets[i] = get_be32(pb);
766 } else if (atom.type == MKTAG('c', 'o', '6', '4')) {
767 for(i=0; i<entries; i++) {
768 sc->chunk_offsets[i] = get_be64(pb);
773 for(i=0; i<c->fc->nb_streams; i++){
774 MOVStreamContext *sc2 = (MOVStreamContext *)c->fc->streams[i]->priv_data;
775 if(sc2 && sc2->chunk_offsets){
776 int64_t first= sc2->chunk_offsets[0];
777 int64_t last= sc2->chunk_offsets[sc2->chunk_count-1];
778 if(first >= sc->chunk_offsets[entries-1] || last <= sc->chunk_offsets[0])
784 for(i=0; i<entries; i++) {
785 av_log(NULL, AV_LOG_DEBUG, "chunk offset=0x%Lx\n", sc->chunk_offsets[i]);
792 static int mov_read_stsd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
794 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
795 //MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
796 int entries, frames_per_sample;
798 uint8_t codec_name[32];
800 /* for palette traversal */
808 unsigned char *color_table;
810 unsigned char r, g, b;
812 print_atom("stsd", atom);
814 get_byte(pb); /* version */
815 get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
817 entries = get_be32(pb);
819 while(entries--) { //Parsing Sample description table
821 int size = get_be32(pb); /* size */
822 format = get_le32(pb); /* data format */
824 get_be32(pb); /* reserved */
825 get_be16(pb); /* reserved */
826 get_be16(pb); /* index */
828 /* for MPEG4: set codec type by looking for it */
829 id = codec_get_id(mov_video_tags, format);
832 codec = avcodec_find_decoder(id);
834 st->codec.codec_type = codec->type;
837 av_log(NULL, AV_LOG_DEBUG, "size=%d 4CC= %c%c%c%c codec_type=%d\n",
839 (format >> 0) & 0xff,
840 (format >> 8) & 0xff,
841 (format >> 16) & 0xff,
842 (format >> 24) & 0xff,
843 st->codec.codec_type);
845 st->codec.codec_tag = format;
846 if(st->codec.codec_type==CODEC_TYPE_VIDEO) {
847 MOV_atom_t a = { 0, 0, 0 };
848 st->codec.codec_id = id;
849 get_be16(pb); /* version */
850 get_be16(pb); /* revision level */
851 get_be32(pb); /* vendor */
852 get_be32(pb); /* temporal quality */
853 get_be32(pb); /* spacial quality */
854 if(st->codec.codec_id == CODEC_ID_MPEG4){ //FIXME this is silly
858 st->codec.width = get_be16(pb); /* width */
859 st->codec.height = get_be16(pb); /* height */
861 get_be32(pb); /* horiz resolution */
862 get_be32(pb); /* vert resolution */
863 get_be32(pb); /* data size, always 0 */
864 frames_per_sample = get_be16(pb); /* frames per samples */
866 av_log(NULL, AV_LOG_DEBUG, "frames/samples = %d\n", frames_per_sample);
868 get_buffer(pb, codec_name, 32); /* codec name, pascal string (FIXME: true for mp4?) */
869 if (codec_name[0] <= 31) {
870 memcpy(st->codec.codec_name, &codec_name[1],codec_name[0]);
871 st->codec.codec_name[codec_name[0]] = 0;
874 st->codec.bits_per_sample = get_be16(pb); /* depth */
875 st->codec.color_table_id = get_be16(pb); /* colortable id */
877 /* These are set in mov_read_stts and might already be set!
878 st->codec.time_base.den = 25;
879 st->codec.time_base.num = 1;
881 size -= (16+8*4+2+32+2*2);
887 a.size = get_be32(pb);
888 a.type = get_le32(pb);
891 av_log(NULL, AV_LOG_DEBUG, "VIDEO: atom_type=%c%c%c%c atom.size=%Ld size_left=%d\n",
892 (a.type >> 0) & 0xff,
893 (a.type >> 8) & 0xff,
894 (a.type >> 16) & 0xff,
895 (a.type >> 24) & 0xff,
898 start_pos = url_ftell(pb);
901 case MKTAG('e', 's', 'd', 's'):
904 /* Well, broken but suffisant for some MP4 streams */
905 get_be32(pb); /* version + flags */
906 len = mov_mp4_read_descr(pb, &tag);
909 get_be16(pb); /* ID */
910 get_byte(pb); /* priority */
911 len = mov_mp4_read_descr(pb, &tag);
914 /* MP4DecConfigDescrTag */
915 get_byte(pb); /* objectTypeId */
916 get_be32(pb); /* streamType + buffer size */
917 get_be32(pb); /* max bit rate */
918 get_be32(pb); /* avg bit rate */
919 len = mov_mp4_read_descr(pb, &tag);
922 /* MP4DecSpecificDescrTag */
924 av_log(NULL, AV_LOG_DEBUG, "Specific MPEG4 header len=%d\n", len);
926 sc->header_data = av_mallocz(len);
927 if (sc->header_data) {
928 get_buffer(pb, sc->header_data, len);
929 sc->header_len = len;
932 /* in any case, skip garbage */
939 av_log(NULL, AV_LOG_DEBUG, "ATOMENEWSIZE %Ld %d\n", atom.size, url_ftell(pb) - start_pos);
941 url_fskip(pb, (atom.size - 8) -
942 ((url_ftell(pb) - start_pos)));
943 size -= atom.size - 8;
947 /* unknown extension */
952 /* figure out the palette situation */
953 color_depth = st->codec.bits_per_sample & 0x1F;
954 color_greyscale = st->codec.bits_per_sample & 0x20;
956 /* if the depth is 2, 4, or 8 bpp, file is palettized */
957 if ((color_depth == 2) || (color_depth == 4) ||
958 (color_depth == 8)) {
960 if (color_greyscale) {
962 /* compute the greyscale palette */
963 color_count = 1 << color_depth;
965 color_dec = 256 / (color_count - 1);
966 for (j = 0; j < color_count; j++) {
967 r = g = b = color_index;
968 c->palette_control.palette[j] =
969 (r << 16) | (g << 8) | (b);
970 color_index -= color_dec;
975 } else if (st->codec.color_table_id & 0x08) {
977 /* if flag bit 3 is set, use the default palette */
978 color_count = 1 << color_depth;
979 if (color_depth == 2)
980 color_table = ff_qt_default_palette_4;
981 else if (color_depth == 4)
982 color_table = ff_qt_default_palette_16;
984 color_table = ff_qt_default_palette_256;
986 for (j = 0; j < color_count; j++) {
987 r = color_table[j * 4 + 0];
988 g = color_table[j * 4 + 1];
989 b = color_table[j * 4 + 2];
990 c->palette_control.palette[j] =
991 (r << 16) | (g << 8) | (b);
996 /* load the palette from the file */
997 color_start = get_be32(pb);
998 color_count = get_be16(pb);
999 color_end = get_be16(pb);
1000 for (j = color_start; j <= color_end; j++) {
1001 /* each R, G, or B component is 16 bits;
1002 * only use the top 8 bits; skip alpha bytes
1012 c->palette_control.palette[j] =
1013 (r << 16) | (g << 8) | (b);
1017 st->codec.palctrl = &c->palette_control;
1018 st->codec.palctrl->palette_changed = 1;
1020 st->codec.palctrl = NULL;
1023 mov_read_default(c, pb, a);
1026 st->codec.codec_id = codec_get_id(mov_audio_tags, format);
1027 if(st->codec.codec_id==CODEC_ID_AMR_NB || st->codec.codec_id==CODEC_ID_AMR_WB) //from TS26.244
1030 av_log(NULL, AV_LOG_DEBUG, "AMR-NB or AMR-WB audio identified!!\n");
1032 get_be32(pb);get_be32(pb); //Reserved_8
1033 get_be16(pb);//Reserved_2
1034 get_be16(pb);//Reserved_2
1035 get_be32(pb);//Reserved_4
1036 get_be16(pb);//TimeScale
1037 get_be16(pb);//Reserved_2
1039 //AMRSpecificBox.(10 bytes)
1041 get_be32(pb); //size
1042 get_be32(pb); //type=='damr'
1043 get_be32(pb); //vendor
1044 get_byte(pb); //decoder version
1045 get_be16(pb); //mode_set
1046 get_byte(pb); //mode_change_period
1047 get_byte(pb); //frames_per_sample
1049 st->duration = AV_NOPTS_VALUE;//Not possible to get from this info, must count number of AMR frames
1050 if(st->codec.codec_id==CODEC_ID_AMR_NB)
1052 st->codec.sample_rate=8000;
1053 st->codec.channels=1;
1057 st->codec.sample_rate=16000;
1058 st->codec.channels=1;
1060 st->codec.bits_per_sample=16;
1061 st->codec.bit_rate=0; /*It is not possible to tell this before we have
1062 an audio frame and even then every frame can be different*/
1064 else if( st->codec.codec_tag == MKTAG( 'm', 'p', '4', 's' ))
1066 //This is some stuff for the hint track, lets ignore it!
1067 //Do some mp4 auto detect.
1070 url_fskip(pb, size); /* The mp4s atom also contians a esds atom that we can skip*/
1072 else if( st->codec.codec_tag == MKTAG( 'm', 'p', '4', 'a' ))
1077 /* Handle mp4 audio tag */
1078 mp4_version=get_be16(pb);/*version*/
1079 get_be16(pb); /*revesion*/
1081 st->codec.channels = get_be16(pb); /* channels */
1082 st->codec.bits_per_sample = get_be16(pb); /* bits per sample */
1084 st->codec.sample_rate = get_be16(pb); /* sample rate, not always correct */
1091 a.size=size-(16+20+16);
1094 a.size=size-(16+20);
1096 a.offset=url_ftell(pb);
1098 mov_read_default(c, pb, a);
1100 /* Get correct sample rate from extradata */
1101 if(st->codec.extradata_size) {
1102 const int samplerate_table[] = {
1103 96000, 88200, 64000, 48000, 44100, 32000,
1104 24000, 22050, 16000, 12000, 11025, 8000,
1107 unsigned char *px = st->codec.extradata;
1108 // 5 bits objectTypeIndex, 4 bits sampleRateIndex, 4 bits channels
1109 int samplerate_index = ((px[0] & 7) << 1) + ((px[1] >> 7) & 1);
1110 st->codec.sample_rate = samplerate_table[samplerate_index];
1111 st->codec.channels = (px[1] >> 3) & 15;
1114 else if( st->codec.codec_tag == MKTAG( 'a', 'l', 'a', 'c' ))
1116 /* Handle alac audio tag + special extradata */
1117 get_be32(pb); /* version */
1119 st->codec.channels = get_be16(pb); /* channels */
1120 st->codec.bits_per_sample = get_be16(pb); /* bits per sample */
1122 st->codec.sample_rate = get_be16(pb);
1125 /* fetch the 36-byte extradata needed for alac decoding */
1126 st->codec.extradata_size = 36;
1127 st->codec.extradata = (uint8_t*)
1128 av_mallocz(st->codec.extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
1129 get_buffer(pb, st->codec.extradata, st->codec.extradata_size);
1131 else if(size>=(16+20))
1132 {//16 bytes read, reading atleast 20 more
1135 av_log(NULL, AV_LOG_DEBUG, "audio size=0x%X\n",size);
1137 version = get_be16(pb); /* version */
1138 get_be16(pb); /* revision level */
1139 get_be32(pb); /* vendor */
1141 st->codec.channels = get_be16(pb); /* channel count */
1142 st->codec.bits_per_sample = get_be16(pb); /* sample size */
1144 /* handle specific s8 codec */
1145 get_be16(pb); /* compression id = 0*/
1146 get_be16(pb); /* packet size = 0 */
1148 st->codec.sample_rate = ((get_be32(pb) >> 16));
1149 //av_log(NULL, AV_LOG_DEBUG, "CODECID %d %d %.4s\n", st->codec.codec_id, CODEC_ID_PCM_S16BE, (char*)&format);
1151 switch (st->codec.codec_id) {
1152 case CODEC_ID_PCM_S16BE:
1153 if (st->codec.bits_per_sample == 8)
1154 st->codec.codec_id = CODEC_ID_PCM_S8;
1156 case CODEC_ID_PCM_U8:
1157 st->codec.bit_rate = st->codec.sample_rate * 8;
1163 //Read QT version 1 fields. In version 0 theese dont exist
1165 av_log(NULL, AV_LOG_DEBUG, "version =%d mp4=%d\n",version,c->mp4);
1166 av_log(NULL, AV_LOG_DEBUG, "size-(16+20+16)=%d\n",size-(16+20+16));
1168 if((version==1) && size>=(16+20+16))
1170 get_be32(pb); /* samples per packet */
1171 get_be32(pb); /* bytes per packet */
1172 get_be32(pb); /* bytes per frame */
1173 get_be32(pb); /* bytes per sample */
1176 //Optional, additional atom-based fields
1177 MOV_atom_t a = { format, url_ftell(pb), size - (16 + 20 + 16 + 8) };
1179 av_log(NULL, AV_LOG_DEBUG, "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 ),
1180 (format >> 0) & 0xff,
1181 (format >> 8) & 0xff,
1182 (format >> 16) & 0xff,
1183 (format >> 24) & 0xff);
1185 mov_read_default(c, pb, a);
1190 //We should be down to 0 bytes here, but lets make sure.
1194 av_log(NULL, AV_LOG_DEBUG, "skipping 0x%X bytes\n",size-(16+20));
1196 url_fskip(pb, size);
1202 //Unknown size, but lets do our best and skip the rest.
1204 av_log(NULL, AV_LOG_DEBUG, "Strange size, skipping 0x%X bytes\n",size);
1206 url_fskip(pb, size);
1214 static int mov_read_stsc(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1216 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
1217 MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
1218 unsigned int i, entries;
1220 print_atom("stsc", atom);
1222 get_byte(pb); /* version */
1223 get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
1225 entries = get_be32(pb);
1227 if(entries >= UINT_MAX / sizeof(MOV_sample_to_chunk_tbl))
1231 av_log(NULL, AV_LOG_DEBUG, "track[%i].stsc.entries = %i\n", c->fc->nb_streams-1, entries);
1233 sc->sample_to_chunk_sz = entries;
1234 sc->sample_to_chunk = (MOV_sample_to_chunk_tbl*) av_malloc(entries * sizeof(MOV_sample_to_chunk_tbl));
1235 if (!sc->sample_to_chunk)
1237 for(i=0; i<entries; i++) {
1238 sc->sample_to_chunk[i].first = get_be32(pb);
1239 sc->sample_to_chunk[i].count = get_be32(pb);
1240 sc->sample_to_chunk[i].id = get_be32(pb);
1242 /* av_log(NULL, AV_LOG_DEBUG, "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); */
1248 static int mov_read_stss(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1250 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
1251 MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
1252 unsigned int i, entries;
1254 print_atom("stss", atom);
1256 get_byte(pb); /* version */
1257 get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
1259 entries = get_be32(pb);
1261 if(entries >= UINT_MAX / sizeof(long))
1264 sc->keyframe_count = entries;
1266 av_log(NULL, AV_LOG_DEBUG, "keyframe_count = %ld\n", sc->keyframe_count);
1268 sc->keyframes = (long*) av_malloc(entries * sizeof(long));
1271 for(i=0; i<entries; i++) {
1272 sc->keyframes[i] = get_be32(pb);
1274 /* av_log(NULL, AV_LOG_DEBUG, "keyframes[]=%ld\n", sc->keyframes[i]); */
1280 static int mov_read_stsz(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1282 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
1283 MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
1284 unsigned int i, entries;
1286 print_atom("stsz", atom);
1288 get_byte(pb); /* version */
1289 get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
1291 sc->sample_size = get_be32(pb);
1292 entries = get_be32(pb);
1293 if(entries >= UINT_MAX / sizeof(long))
1296 sc->sample_count = entries;
1298 av_log(NULL, AV_LOG_DEBUG, "sample_size = %ld sample_count = %ld\n", sc->sample_size, sc->sample_count);
1301 return 0; /* there isn't any table following */
1302 sc->sample_sizes = (long*) av_malloc(entries * sizeof(long));
1303 if (!sc->sample_sizes)
1305 for(i=0; i<entries; i++) {
1306 sc->sample_sizes[i] = get_be32(pb);
1308 av_log(NULL, AV_LOG_DEBUG, "sample_sizes[]=%ld\n", sc->sample_sizes[i]);
1314 static int mov_read_stts(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1316 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
1317 //MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
1318 unsigned int i, entries;
1320 int64_t total_sample_count=0;
1322 print_atom("stts", atom);
1324 get_byte(pb); /* version */
1325 get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
1326 entries = get_be32(pb);
1327 if(entries >= UINT_MAX / sizeof(Time2Sample))
1330 c->streams[c->fc->nb_streams-1]->stts_count = entries;
1331 c->streams[c->fc->nb_streams-1]->stts_data = av_malloc(entries * sizeof(Time2Sample));
1334 av_log(NULL, AV_LOG_DEBUG, "track[%i].stts.entries = %i\n", c->fc->nb_streams-1, entries);
1336 for(i=0; i<entries; i++) {
1337 int sample_duration;
1340 sample_count=get_be32(pb);
1341 sample_duration = get_be32(pb);
1342 c->streams[c->fc->nb_streams - 1]->stts_data[i].count= sample_count;
1343 c->streams[c->fc->nb_streams - 1]->stts_data[i].duration= sample_duration;
1345 av_log(NULL, AV_LOG_DEBUG, "sample_count=%d, sample_duration=%d\n",sample_count,sample_duration);
1347 duration+=sample_duration*sample_count;
1348 total_sample_count+=sample_count;
1350 #if 0 //We calculate an average instead, needed by .mp4-files created with nec e606 3g phone
1352 if (!i && st->codec.codec_type==CODEC_TYPE_VIDEO) {
1353 st->codec.time_base.num = sample_duration ? sample_duration : 1;
1354 st->codec.time_base.den = c->streams[c->fc->nb_streams-1]->time_scale;
1356 av_log(NULL, AV_LOG_DEBUG, "VIDEO FRAME RATE= %i (sd= %i)\n", st->codec.time_base.den, sample_duration);
1362 /*The stsd atom which contain codec type sometimes comes after the stts so we cannot check for codec_type*/
1366 &st->codec.time_base.den,
1367 &st->codec.time_base.num,
1368 c->streams[c->fc->nb_streams-1]->time_scale * total_sample_count,
1374 av_log(NULL, AV_LOG_DEBUG, "FRAME RATE average (video or audio)= %f (tot sample count= %i ,tot dur= %i timescale=%d)\n", (float)st->codec.time_base.den/st->codec.time_base.num,total_sample_count,duration,c->streams[c->fc->nb_streams-1]->time_scale);
1379 st->codec.time_base.num = 1;
1380 st->codec.time_base.den = c->streams[c->fc->nb_streams-1]->time_scale;
1385 static int mov_read_ctts(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1387 // AVStream *st = c->fc->streams[c->fc->nb_streams-1];
1388 //MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
1389 unsigned int i, entries;
1391 print_atom("ctts", atom);
1393 get_byte(pb); /* version */
1394 get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
1395 entries = get_be32(pb);
1396 if(entries >= UINT_MAX / sizeof(Time2Sample))
1399 c->streams[c->fc->nb_streams-1]->ctts_count = entries;
1400 c->streams[c->fc->nb_streams-1]->ctts_data = av_malloc(entries * sizeof(Time2Sample));
1403 av_log(NULL, AV_LOG_DEBUG, "track[%i].ctts.entries = %i\n", c->fc->nb_streams-1, entries);
1405 for(i=0; i<entries; i++) {
1406 c->streams[c->fc->nb_streams - 1]->ctts_data[i].count= get_be32(pb);
1407 c->streams[c->fc->nb_streams - 1]->ctts_data[i].duration= get_be32(pb);
1412 static int mov_read_trak(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1415 MOVStreamContext *sc;
1417 print_atom("trak", atom);
1419 st = av_new_stream(c->fc, c->fc->nb_streams);
1421 sc = (MOVStreamContext*) av_mallocz(sizeof(MOVStreamContext));
1427 sc->sample_to_chunk_index = -1;
1429 st->codec.codec_type = CODEC_TYPE_MOV_OTHER;
1430 st->start_time = 0; /* XXX: check */
1431 st->duration = (c->duration * (int64_t)AV_TIME_BASE) / c->time_scale;
1432 c->streams[c->fc->nb_streams-1] = sc;
1434 return mov_read_default(c, pb, atom);
1437 static int mov_read_tkhd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1441 print_atom("tkhd", atom);
1443 st = c->fc->streams[c->fc->nb_streams-1];
1445 get_byte(pb); /* version */
1447 get_byte(pb); get_byte(pb);
1448 get_byte(pb); /* flags */
1450 MOV_TRACK_ENABLED 0x0001
1451 MOV_TRACK_IN_MOVIE 0x0002
1452 MOV_TRACK_IN_PREVIEW 0x0004
1453 MOV_TRACK_IN_POSTER 0x0008
1456 get_be32(pb); /* creation time */
1457 get_be32(pb); /* modification time */
1458 st->id = (int)get_be32(pb); /* track id (NOT 0 !)*/
1459 get_be32(pb); /* reserved */
1460 st->start_time = 0; /* check */
1461 st->duration = (get_be32(pb) * (int64_t)AV_TIME_BASE) / c->time_scale; /* duration */
1462 get_be32(pb); /* reserved */
1463 get_be32(pb); /* reserved */
1465 get_be16(pb); /* layer */
1466 get_be16(pb); /* alternate group */
1467 get_be16(pb); /* volume */
1468 get_be16(pb); /* reserved */
1470 url_fskip(pb, 36); /* display matrix */
1472 /* those are fixed-point */
1473 st->codec.width = get_be32(pb) >> 16; /* track width */
1474 st->codec.height = get_be32(pb) >> 16; /* track height */
1479 /* this atom should be null (from specs), but some buggy files put the 'moov' atom inside it... */
1480 /* like the files created with Adobe Premiere 5.0, for samples see */
1481 /* http://graphics.tudelft.nl/~wouter/publications/soundtests/ */
1482 static int mov_read_wide(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1487 print_atom("wide", atom);
1491 return 0; /* continue */
1492 if (get_be32(pb) != 0) { /* 0 sized mdat atom... use the 'wide' atom size */
1493 url_fskip(pb, atom.size - 4);
1496 atom.type = get_le32(pb);
1499 if (atom.type != MKTAG('m', 'd', 'a', 't')) {
1500 url_fskip(pb, atom.size);
1503 err = mov_read_mdat(c, pb, atom);
1512 static int null_read_packet(void *opaque, uint8_t *buf, int buf_size)
1517 static int mov_read_cmov(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1521 uint8_t *moov_data; /* uncompressed data */
1522 long cmov_len, moov_len;
1525 print_atom("cmov", atom);
1527 get_be32(pb); /* dcom atom */
1528 if (get_le32(pb) != MKTAG( 'd', 'c', 'o', 'm' ))
1530 if (get_le32(pb) != MKTAG( 'z', 'l', 'i', 'b' )) {
1531 av_log(NULL, AV_LOG_DEBUG, "unknown compression for cmov atom !");
1534 get_be32(pb); /* cmvd atom */
1535 if (get_le32(pb) != MKTAG( 'c', 'm', 'v', 'd' ))
1537 moov_len = get_be32(pb); /* uncompressed size */
1538 cmov_len = atom.size - 6 * 4;
1540 cmov_data = (uint8_t *) av_malloc(cmov_len);
1543 moov_data = (uint8_t *) av_malloc(moov_len);
1548 get_buffer(pb, cmov_data, cmov_len);
1549 if(uncompress (moov_data, (uLongf *) &moov_len, (const Bytef *)cmov_data, cmov_len) != Z_OK)
1551 if(init_put_byte(&ctx, moov_data, moov_len, 0, NULL, null_read_packet, NULL, NULL) != 0)
1553 ctx.buf_end = ctx.buffer + moov_len;
1554 atom.type = MKTAG( 'm', 'o', 'o', 'v' );
1556 atom.size = moov_len;
1558 { int fd = open("/tmp/uncompheader.mov", O_WRONLY | O_CREAT); write(fd, moov_data, moov_len); close(fd); }
1560 ret = mov_read_default(c, &ctx, atom);
1568 /* edit list atom */
1569 static int mov_read_elst(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1572 print_atom("elst", atom);
1574 get_byte(pb); /* version */
1575 get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
1576 edit_count= c->streams[c->fc->nb_streams-1]->edit_count = get_be32(pb); /* entries */
1578 for(i=0; i<edit_count; i++){
1579 get_be32(pb); /* Track duration */
1580 get_be32(pb); /* Media time */
1581 get_be32(pb); /* Media rate */
1584 av_log(NULL, AV_LOG_DEBUG, "track[%i].edit_count = %i\n", c->fc->nb_streams-1, c->streams[c->fc->nb_streams-1]->edit_count);
1589 static const MOVParseTableEntry mov_default_parse_table[] = {
1591 { MKTAG( 'c', 'o', '6', '4' ), mov_read_stco },
1592 { MKTAG( 'c', 'p', 'r', 't' ), mov_read_default },
1593 { MKTAG( 'c', 'r', 'h', 'd' ), mov_read_default },
1594 { MKTAG( 'c', 't', 't', 's' ), mov_read_ctts }, /* composition time to sample */
1595 { MKTAG( 'd', 'i', 'n', 'f' ), mov_read_default }, /* data information */
1596 { MKTAG( 'd', 'p', 'n', 'd' ), mov_read_leaf },
1597 { MKTAG( 'd', 'r', 'e', 'f' ), mov_read_leaf },
1598 { MKTAG( 'e', 'd', 't', 's' ), mov_read_default },
1599 { MKTAG( 'e', 'l', 's', 't' ), mov_read_elst },
1600 { MKTAG( 'f', 'r', 'e', 'e' ), mov_read_leaf },
1601 { MKTAG( 'h', 'd', 'l', 'r' ), mov_read_hdlr },
1602 { MKTAG( 'h', 'i', 'n', 't' ), mov_read_leaf },
1603 { MKTAG( 'h', 'm', 'h', 'd' ), mov_read_leaf },
1604 { MKTAG( 'i', 'o', 'd', 's' ), mov_read_leaf },
1605 { MKTAG( 'm', 'd', 'a', 't' ), mov_read_mdat },
1606 { MKTAG( 'm', 'd', 'h', 'd' ), mov_read_mdhd },
1607 { MKTAG( 'm', 'd', 'i', 'a' ), mov_read_default },
1608 { MKTAG( 'm', 'i', 'n', 'f' ), mov_read_default },
1609 { MKTAG( 'm', 'o', 'o', 'v' ), mov_read_moov },
1610 { MKTAG( 'm', 'p', '4', 'a' ), mov_read_default },
1611 { MKTAG( 'm', 'p', '4', 's' ), mov_read_default },
1612 { MKTAG( 'm', 'p', '4', 'v' ), mov_read_default },
1613 { MKTAG( 'm', 'p', 'o', 'd' ), mov_read_leaf },
1614 { MKTAG( 'm', 'v', 'h', 'd' ), mov_read_mvhd },
1615 { MKTAG( 'n', 'm', 'h', 'd' ), mov_read_leaf },
1616 { MKTAG( 'o', 'd', 'h', 'd' ), mov_read_default },
1617 { MKTAG( 's', 'd', 'h', 'd' ), mov_read_default },
1618 { MKTAG( 's', 'k', 'i', 'p' ), mov_read_leaf },
1619 { MKTAG( 's', 'm', 'h', 'd' ), mov_read_leaf }, /* sound media info header */
1620 { MKTAG( 'S', 'M', 'I', ' ' ), mov_read_smi }, /* Sorenson extension ??? */
1621 { MKTAG( 'a', 'v', 'c', 'C' ), mov_read_avcC },
1622 { MKTAG( 's', 't', 'b', 'l' ), mov_read_default },
1623 { MKTAG( 's', 't', 'c', 'o' ), mov_read_stco },
1624 { MKTAG( 's', 't', 'd', 'p' ), mov_read_default },
1625 { MKTAG( 's', 't', 's', 'c' ), mov_read_stsc },
1626 { MKTAG( 's', 't', 's', 'd' ), mov_read_stsd }, /* sample description */
1627 { MKTAG( 's', 't', 's', 'h' ), mov_read_default },
1628 { MKTAG( 's', 't', 's', 's' ), mov_read_stss }, /* sync sample */
1629 { MKTAG( 's', 't', 's', 'z' ), mov_read_stsz }, /* sample size */
1630 { MKTAG( 's', 't', 't', 's' ), mov_read_stts },
1631 { MKTAG( 't', 'k', 'h', 'd' ), mov_read_tkhd }, /* track header */
1632 { MKTAG( 't', 'r', 'a', 'k' ), mov_read_trak },
1633 { MKTAG( 't', 'r', 'e', 'f' ), mov_read_default }, /* not really */
1634 { MKTAG( 'u', 'd', 't', 'a' ), mov_read_leaf },
1635 { MKTAG( 'u', 'r', 'l', ' ' ), mov_read_leaf },
1636 { MKTAG( 'u', 'r', 'n', ' ' ), mov_read_leaf },
1637 { MKTAG( 'u', 'u', 'i', 'd' ), mov_read_leaf },
1638 { MKTAG( 'v', 'm', 'h', 'd' ), mov_read_leaf }, /* video media info header */
1639 { MKTAG( 'w', 'a', 'v', 'e' ), mov_read_default },
1641 { MKTAG( 'M', 'D', 'E', 'S' ), mov_read_leaf },
1643 { MKTAG( 'c', 'h', 'a', 'p' ), mov_read_leaf },
1644 { MKTAG( 'c', 'l', 'i', 'p' ), mov_read_default },
1645 { MKTAG( 'c', 'r', 'g', 'n' ), mov_read_leaf },
1646 { MKTAG( 'c', 't', 'a', 'b' ), mov_read_ctab },
1647 { MKTAG( 'e', 's', 'd', 's' ), mov_read_esds },
1648 { MKTAG( 'k', 'm', 'a', 't' ), mov_read_leaf },
1649 { MKTAG( 'm', 'a', 't', 't' ), mov_read_default },
1650 { MKTAG( 'r', 'd', 'r', 'f' ), mov_read_leaf },
1651 { MKTAG( 'r', 'm', 'd', 'a' ), mov_read_default },
1652 { MKTAG( 'r', 'm', 'd', 'r' ), mov_read_leaf },
1653 { MKTAG( 'r', 'm', 'r', 'a' ), mov_read_default },
1654 { MKTAG( 's', 'c', 'p', 't' ), mov_read_leaf },
1655 { MKTAG( 's', 's', 'r', 'c' ), mov_read_leaf },
1656 { MKTAG( 's', 'y', 'n', 'c' ), mov_read_leaf },
1657 { MKTAG( 't', 'c', 'm', 'd' ), mov_read_leaf },
1658 { MKTAG( 'w', 'i', 'd', 'e' ), mov_read_wide }, /* place holder */
1659 //{ MKTAG( 'r', 'm', 'q', 'u' ), mov_read_leaf },
1661 { MKTAG( 'c', 'm', 'o', 'v' ), mov_read_cmov },
1663 { MKTAG( 'c', 'm', 'o', 'v' ), mov_read_leaf },
1665 { 0L, mov_read_leaf }
1668 static void mov_free_stream_context(MOVStreamContext *sc)
1671 av_freep(&sc->chunk_offsets);
1672 av_freep(&sc->sample_to_chunk);
1673 av_freep(&sc->sample_sizes);
1674 av_freep(&sc->keyframes);
1675 av_freep(&sc->header_data);
1676 av_freep(&sc->stts_data);
1677 av_freep(&sc->ctts_data);
1682 static inline uint32_t mov_to_tag(uint8_t *buf)
1684 return MKTAG(buf[0], buf[1], buf[2], buf[3]);
1687 static inline uint32_t to_be32(uint8_t *buf)
1689 return (buf[0] << 24) | (buf[1] << 16) | (buf[2] << 8) | buf[3];
1692 /* XXX: is it sufficient ? */
1693 static int mov_probe(AVProbeData *p)
1695 unsigned int offset;
1699 /* check file header */
1700 if (p->buf_size <= 12)
1704 /* ignore invalid offset */
1705 if ((offset + 8) > (unsigned int)p->buf_size)
1707 tag = mov_to_tag(p->buf + offset + 4);
1709 /* check for obvious tags */
1710 case MKTAG( 'm', 'o', 'o', 'v' ):
1711 case MKTAG( 'm', 'd', 'a', 't' ):
1712 case MKTAG( 'p', 'n', 'o', 't' ): /* detect movs with preview pics like ew.mov and april.mov */
1713 case MKTAG( 'u', 'd', 't', 'a' ): /* Packet Video PVAuthor adds this and a lot of more junk */
1714 return AVPROBE_SCORE_MAX;
1715 /* those are more common words, so rate then a bit less */
1716 case MKTAG( 'w', 'i', 'd', 'e' ):
1717 case MKTAG( 'f', 'r', 'e', 'e' ):
1718 case MKTAG( 'j', 'u', 'n', 'k' ):
1719 case MKTAG( 'p', 'i', 'c', 't' ):
1720 return AVPROBE_SCORE_MAX - 5;
1721 case MKTAG( 'f', 't', 'y', 'p' ):
1722 case MKTAG( 's', 'k', 'i', 'p' ):
1723 case MKTAG( 'u', 'u', 'i', 'd' ):
1724 offset = to_be32(p->buf+offset) + offset;
1725 /* if we only find those cause probedata is too small at least rate them */
1726 score = AVPROBE_SCORE_MAX - 50;
1729 /* unrecognized tag */
1736 static int mov_read_header(AVFormatContext *s, AVFormatParameters *ap)
1738 MOVContext *mov = (MOVContext *) s->priv_data;
1739 ByteIOContext *pb = &s->pb;
1741 MOV_atom_t atom = { 0, 0, 0 };
1744 mov->parse_table = mov_default_parse_table;
1746 /* XXX: I think we should auto detect */
1747 if(s->iformat->name[1] == 'p')
1750 if(!url_is_streamed(pb)) /* .mov and .mp4 aren't streamable anyway (only progressive download if moov is before mdat) */
1751 atom.size = url_fsize(pb);
1753 atom.size = 0x7FFFFFFFFFFFFFFFLL;
1756 av_log(NULL, AV_LOG_DEBUG, "filesz=%Ld\n", atom.size);
1759 /* check MOV header */
1760 err = mov_read_default(mov, pb, atom);
1761 if (err<0 || (!mov->found_moov && !mov->found_mdat)) {
1762 av_log(s, AV_LOG_ERROR, "mov: header not found !!! (err:%d, moov:%d, mdat:%d) pos:%lld\n",
1763 err, mov->found_moov, mov->found_mdat, url_ftell(pb));
1767 av_log(NULL, AV_LOG_DEBUG, "on_parse_exit_offset=%d\n", (int) url_ftell(pb));
1769 /* some cleanup : make sure we are on the mdat atom */
1770 if(!url_is_streamed(pb) && (url_ftell(pb) != mov->mdat_offset))
1771 url_fseek(pb, mov->mdat_offset, SEEK_SET);
1773 mov->next_chunk_offset = mov->mdat_offset; /* initialise reading */
1776 av_log(NULL, AV_LOG_DEBUG, "mdat_reset_offset=%d\n", (int) url_ftell(pb));
1780 av_log(NULL, AV_LOG_DEBUG, "streams= %d\n", s->nb_streams);
1782 mov->total_streams = nb = s->nb_streams;
1785 for(i=0; i<s->nb_streams;) {
1786 if(s->streams[i]->codec.codec_type == CODEC_TYPE_MOV_OTHER) {/* not audio, not video, delete */
1787 av_free(s->streams[i]);
1788 for(j=i+1; j<s->nb_streams; j++)
1789 s->streams[j-1] = s->streams[j];
1794 for(i=0; i<s->nb_streams;i++) {
1795 MOVStreamContext *sc;
1796 sc = (MOVStreamContext *)s->streams[i]->priv_data;
1798 sc->is_ff_stream = 1;
1802 av_log(NULL, AV_LOG_DEBUG, "real streams= %d\n", s->nb_streams);
1807 /* Yes, this is ugly... I didn't write the specs of QT :p */
1808 /* XXX:remove useless commented code sometime */
1809 static int mov_read_packet(AVFormatContext *s, AVPacket *pkt)
1811 MOVContext *mov = (MOVContext *) s->priv_data;
1812 MOVStreamContext *sc;
1813 int64_t offset = INT64_MAX;
1814 int64_t best_dts = INT64_MAX;
1820 #ifdef MOV_SPLIT_CHUNKS
1823 idx = sc->sample_to_chunk_index;
1825 if (idx < 0) return 0;
1827 fprintf(stderr, "sc[ffid %d]->sample_size = %d\n", sc->ffindex, sc->sample_size);
1829 //size = sc->sample_sizes[sc->current_sample];
1830 // that ain't working...
1831 //size = (sc->sample_size)?sc->sample_size:sc->sample_sizes[sc->current_sample];
1832 size = (sc->sample_size > 1)?sc->sample_size:sc->sample_sizes[sc->current_sample];
1834 sc->current_sample++;
1835 sc->left_in_chunk--;
1837 if (sc->left_in_chunk <= 0)
1839 offset = mov->next_chunk_offset;
1840 /* extract the sample */
1848 if(offset == INT64_MAX)
1849 best_dts= INT64_MAX;
1850 for(i=0; i<mov->total_streams; i++) {
1851 MOVStreamContext *msc = mov->streams[i];
1853 if ((msc->next_chunk < msc->chunk_count) && msc->next_chunk >= 0){
1854 if (msc->sample_to_time_index < msc->stts_count && mov->ni) {
1856 int index= msc->sample_to_time_index;
1857 int sample= msc->sample_to_time_sample;
1858 int time= msc->sample_to_time_time;
1859 int duration = msc->stts_data[index].duration;
1860 int count = msc->stts_data[index].count;
1861 if (sample + count < msc->current_sample) {
1863 time += count*duration;
1865 duration = msc->stts_data[index].duration;
1867 dts = time + (msc->current_sample-1 - sample) * (int64_t)duration;
1868 dts = av_rescale(dts, AV_TIME_BASE, msc->time_scale);
1869 // av_log(NULL, AV_LOG_DEBUG, "%d %Ld %Ld %Ld \n", i, dts, best_dts, offset);
1873 offset = msc->chunk_offsets[msc->next_chunk];
1876 //av_log(NULL, AV_LOG_DEBUG, "MOCHUNK %ld %d %p pos:%Ld\n", mov->streams[i]->next_chunk, mov->total_streams, mov->streams[i], url_ftell(&s->pb));
1877 if ((msc->chunk_offsets[msc->next_chunk] < offset)) {
1879 offset = msc->chunk_offsets[msc->next_chunk];
1880 //av_log(NULL, AV_LOG_DEBUG, "SELETED %Ld i:%d\n", offset, i);
1885 if (!sc || offset==INT64_MAX)
1890 if(mov->next_chunk_offset < offset) { /* some meta data */
1891 url_fskip(&s->pb, (offset - mov->next_chunk_offset));
1892 mov->next_chunk_offset = offset;
1895 //av_log(NULL, AV_LOG_DEBUG, "chunk: [%i] %lli -> %lli\n", st_id, mov->next_chunk_offset, offset);
1896 if(!sc->is_ff_stream || (s->streams[sc->ffindex]->discard >= AVDISCARD_ALL)) {
1897 url_fskip(&s->pb, (offset - mov->next_chunk_offset));
1898 mov->next_chunk_offset = offset;
1903 /* now get the chunk size... */
1905 for(i=0; i<mov->total_streams; i++) {
1906 MOVStreamContext *msc = mov->streams[i];
1907 if ((msc->next_chunk < msc->chunk_count)
1908 && msc->chunk_offsets[msc->next_chunk] - offset < size
1909 && msc->chunk_offsets[msc->next_chunk] > offset)
1910 size = msc->chunk_offsets[msc->next_chunk] - offset;
1913 #ifdef MOV_MINOLTA_FIX
1914 //Make sure that size is according to sample_size (Needed by .mov files
1915 //created on a Minolta Dimage Xi where audio chunks contains waste data in the end)
1916 //Maybe we should really not only check sc->sample_size, but also sc->sample_sizes
1917 //but I have no such movies
1918 if (sc->sample_size > 0) {
1920 for(i=0; i<(sc->sample_to_chunk_sz); i++) {
1921 if( (sc->sample_to_chunk[i].first)<=(sc->next_chunk) )
1923 // I can't figure out why for PCM audio sample_size is always 1
1924 // (it should actually be channels*bits_per_second/8) but it is.
1925 AVCodecContext* cod = &s->streams[sc->ffindex]->codec;
1926 if (sc->sample_size == 1 && (cod->codec_id == CODEC_ID_PCM_S16BE || cod->codec_id == CODEC_ID_PCM_S16LE))
1927 foundsize=(sc->sample_to_chunk[i].count*cod->channels*cod->bits_per_sample)/8;
1929 foundsize=sc->sample_to_chunk[i].count*sc->sample_size;
1932 av_log(NULL, AV_LOG_DEBUG, "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);
1935 if( (foundsize>0) && (foundsize<size) )
1938 /*av_log(NULL, AV_LOG_DEBUG, "this size should actually be %d\n",foundsize);*/
1943 #endif //MOV_MINOLTA_FIX
1945 #ifdef MOV_SPLIT_CHUNKS
1946 /* split chunks into samples */
1947 if (sc->sample_size == 0) {
1948 idx = sc->sample_to_chunk_index;
1949 if ((idx + 1 < sc->sample_to_chunk_sz)
1950 && (sc->next_chunk >= sc->sample_to_chunk[idx + 1].first))
1952 sc->sample_to_chunk_index = idx;
1953 if (idx >= 0 && sc->sample_to_chunk[idx].count != 1) {
1955 /* we'll have to get those samples before next chunk */
1956 sc->left_in_chunk = sc->sample_to_chunk[idx].count - 1;
1957 size = (sc->sample_size > 1)?sc->sample_size:sc->sample_sizes[sc->current_sample];
1960 sc->current_sample++;
1966 av_log(NULL, AV_LOG_DEBUG, "chunk: %lli -> %lli (%i)\n", offset, offset + size, size);
1968 if(size == 0x0FFFFFFF)
1969 size = mov->mdat_size + mov->mdat_offset - offset;
1974 url_fseek(&s->pb, offset, SEEK_SET);
1976 //av_log(NULL, AV_LOG_DEBUG, "READCHUNK hlen: %d %d off: %Ld pos:%Ld\n", size, sc->header_len, offset, url_ftell(&s->pb));
1977 if (sc->header_len > 0) {
1978 av_new_packet(pkt, size + sc->header_len);
1979 memcpy(pkt->data, sc->header_data, sc->header_len);
1980 get_buffer(&s->pb, pkt->data + sc->header_len, size);
1982 av_freep(&sc->header_data);
1985 av_new_packet(pkt, size);
1986 get_buffer(&s->pb, pkt->data, pkt->size);
1988 pkt->stream_index = sc->ffindex;
1990 // If the keyframes table exists, mark any samples that are in the table as key frames.
1991 // If no table exists, treat very sample as a key frame.
1992 if (sc->keyframes) {
1994 b = sc->keyframe_count - 1;
1997 m = (a + b + 1) >> 1;
1998 if (sc->keyframes[m] > sc->current_sample) {
2005 if (sc->keyframes[a] == sc->current_sample)
2006 pkt->flags |= PKT_FLAG_KEY;
2009 pkt->flags |= PKT_FLAG_KEY;
2013 av_log(NULL, AV_LOG_DEBUG, "Packet (%d, %ld) ", pkt->stream_index, pkt->size);
2015 av_log(NULL, AV_LOG_DEBUG, "%02x ", pkt->data[i]);
2017 av_log(NULL, AV_LOG_DEBUG, "%c ", (pkt->data[i]) & 0x7F);
2018 av_log(NULL, AV_LOG_DEBUG, "\n");
2022 mov->next_chunk_offset = offset + size;
2024 /* find the corresponding dts */
2025 if (sc && sc->sample_to_time_index < sc->stts_count && pkt) {
2028 unsigned int duration = sc->stts_data[sc->sample_to_time_index].duration;
2029 count = sc->stts_data[sc->sample_to_time_index].count;
2030 if ((sc->sample_to_time_sample + count) < sc->current_sample) {
2031 sc->sample_to_time_sample += count;
2032 sc->sample_to_time_time += count*duration;
2033 sc->sample_to_time_index ++;
2034 duration = sc->stts_data[sc->sample_to_time_index].duration;
2036 dts = sc->sample_to_time_time + (sc->current_sample-1 - sc->sample_to_time_sample) * (int64_t)duration;
2037 /* find the corresponding pts */
2038 if (sc->sample_to_ctime_index < sc->ctts_count) {
2039 int duration = sc->ctts_data[sc->sample_to_ctime_index].duration;
2040 int count = sc->ctts_data[sc->sample_to_ctime_index].count;
2042 if ((sc->sample_to_ctime_sample + count) < sc->current_sample) {
2043 sc->sample_to_ctime_sample += count;
2044 sc->sample_to_ctime_index ++;
2045 duration = sc->ctts_data[sc->sample_to_ctime_index].duration;
2047 pts = dts + duration;
2050 pkt->pts = av_rescale( pts,
2051 (int64_t)s->streams[sc->ffindex]->time_base.den,
2052 (int64_t)sc->time_scale * (int64_t)s->streams[sc->ffindex]->time_base.num );
2053 pkt->dts = av_rescale( dts,
2054 (int64_t)s->streams[sc->ffindex]->time_base.den,
2055 (int64_t)sc->time_scale * (int64_t)s->streams[sc->ffindex]->time_base.num );
2057 av_log(NULL, AV_LOG_DEBUG, "stream #%d smp #%ld dts = %lld pts = %lld (smp:%ld time:%lld idx:%d ent:%d count:%d dur:%d)\n"
2058 , pkt->stream_index, sc->current_sample-1, pkt->dts, pkt->pts
2059 , sc->sample_to_time_sample
2060 , sc->sample_to_time_time
2061 , sc->sample_to_time_index
2071 #if defined(MOV_SPLIT_CHUNKS) && defined(MOV_SEEK)
2073 * Seek method based on the one described in the Appendix C of QTFileFormat.pdf
2075 static int mov_read_seek(AVFormatContext *s, int stream_index, int64_t timestamp, int flags)
2077 MOVContext* mov = (MOVContext *) s->priv_data;
2078 MOVStreamContext* sc;
2080 int64_t sample_time;
2082 int32_t seek_sample, sample;
2086 int32_t left_in_chunk;
2087 int64_t chunk_file_offset;
2088 int64_t sample_file_offset;
2089 int32_t first_chunk_sample;
2090 int32_t sample_to_chunk_idx;
2091 int sample_to_time_index;
2092 long sample_to_time_sample = 0;
2093 uint64_t sample_to_time_time = 0;
2096 // Find the corresponding mov stream
2097 for (mov_idx = 0; mov_idx < mov->total_streams; mov_idx++)
2098 if (mov->streams[mov_idx]->ffindex == stream_index)
2100 if (mov_idx == mov->total_streams) {
2101 av_log(s, AV_LOG_ERROR, "mov: requested stream was not found in mov streams (idx=%i)\n", stream_index);
2104 sc = mov->streams[mov_idx];
2106 // Step 1. Find the edit that contains the requested time (elst)
2107 if (sc->edit_count) {
2108 // FIXME should handle edit list
2109 av_log(s, AV_LOG_ERROR, "mov: does not handle seeking in files that contain edit list (c:%d)\n", sc->edit_count);
2113 // Step 2. Find the corresponding sample using the Time-to-sample atom (stts) */
2115 av_log(s, AV_LOG_DEBUG, "Searching for time %li in stream #%i (time_scale=%i)\n", (long)timestamp, mov_idx, sc->time_scale);
2117 // convert timestamp from time_base unit to timescale unit
2118 sample_time = av_rescale( timestamp,
2119 (int64_t)sc->time_scale * s->streams[stream_index]->time_base.num,
2120 (int64_t)s->streams[stream_index]->time_base.den);
2121 start_time = 0; // FIXME use elst atom
2122 sample = 1; // sample are 0 based in table
2124 av_log(s, AV_LOG_DEBUG, "Searching for sample_time %li \n", (long)sample_time);
2126 for (i = 0; i < sc->stts_count; i++) {
2127 count = sc->stts_data[i].count;
2128 duration = sc->stts_data[i].duration;
2129 //av_log(s, AV_LOG_DEBUG, "> sample_time %lli \n", (long)sample_time);
2130 //av_log(s, AV_LOG_DEBUG, "> count=%i duration=%i\n", count, duration);
2131 if ((start_time + count*duration) > sample_time) {
2132 sample_to_time_time = start_time;
2133 sample_to_time_index = i;
2134 sample_to_time_sample = sample;
2135 sample += (sample_time - start_time) / duration;
2139 start_time += count * duration;
2141 sample_to_time_time = start_time;
2142 sample_to_time_index = i;
2143 /* NOTE: despite what qt doc say, the dt value (Display Time in qt vocabulary) computed with the stts atom
2144 is a decoding time stamp (dts) not a presentation time stamp. And as usual dts != pts for stream with b frames */
2147 av_log(s, AV_LOG_DEBUG, "Found time %li at sample #%u\n", (long)sample_time, sample);
2149 if (sample > sc->sample_count) {
2150 av_log(s, AV_LOG_ERROR, "mov: sample pos is too high, unable to seek (req. sample=%i, sample count=%ld)\n", sample, sc->sample_count);
2154 // Step 3. Find the prior sync. sample using the Sync sample atom (stss)
2155 if (sc->keyframes) {
2157 b = sc->keyframe_count - 1;
2159 m = (a + b + 1) >> 1;
2160 if (sc->keyframes[m] > sample) {
2166 // av_log(s, AV_LOG_DEBUG, "a=%i (%i) b=%i (%i) m=%i (%i) stream #%i\n", a, sc->keyframes[a], b, sc->keyframes[b], m, sc->keyframes[m], mov_idx);
2169 // for low latency prob: always use the previous keyframe, just uncomment the next line
2171 seek_sample = sc->keyframes[a];
2174 seek_sample = sample; // else all samples are key frames
2176 av_log(s, AV_LOG_DEBUG, "Found nearest keyframe at sample #%i \n", seek_sample);
2179 // Step 4. Find the chunk of the sample using the Sample-to-chunk-atom (stsc)
2180 for (first_chunk_sample = 1, i = 0; i < (sc->sample_to_chunk_sz - 1); i++) {
2181 b = (sc->sample_to_chunk[i + 1].first - sc->sample_to_chunk[i].first) * sc->sample_to_chunk[i].count;
2182 if (seek_sample >= first_chunk_sample && seek_sample < (first_chunk_sample + b))
2184 first_chunk_sample += b;
2186 chunk = sc->sample_to_chunk[i].first + (seek_sample - first_chunk_sample) / sc->sample_to_chunk[i].count;
2187 left_in_chunk = sc->sample_to_chunk[i].count - (seek_sample - first_chunk_sample) % sc->sample_to_chunk[i].count;
2188 first_chunk_sample += ((seek_sample - first_chunk_sample) / sc->sample_to_chunk[i].count) * sc->sample_to_chunk[i].count;
2189 sample_to_chunk_idx = i;
2191 av_log(s, AV_LOG_DEBUG, "Sample was found in chunk #%i at sample offset %i (idx %i)\n", chunk, seek_sample - first_chunk_sample, sample_to_chunk_idx);
2194 // Step 5. Find the offset of the chunk using the chunk offset atom
2195 if (!sc->chunk_offsets) {
2196 av_log(s, AV_LOG_ERROR, "mov: no chunk offset atom, unable to seek\n");
2199 if (chunk > sc->chunk_count) {
2200 av_log(s, AV_LOG_ERROR, "mov: chunk offset atom too short, unable to seek (req. chunk=%i, chunk count=%li)\n", chunk, sc->chunk_count);
2203 chunk_file_offset = sc->chunk_offsets[chunk - 1];
2205 av_log(s, AV_LOG_DEBUG, "Chunk file offset is #%llu \n", chunk_file_offset);
2208 // Step 6. Find the byte offset within the chunk using the sample size atom
2209 sample_file_offset = chunk_file_offset;
2210 if (sc->sample_size)
2211 sample_file_offset += (seek_sample - first_chunk_sample) * sc->sample_size;
2213 for (i = 0; i < (seek_sample - first_chunk_sample); i++) {
2214 sample_file_offset += sc->sample_sizes[first_chunk_sample + i - 1];
2218 av_log(s, AV_LOG_DEBUG, "Sample file offset is #%llu \n", sample_file_offset);
2221 // Step 6. Update the parser
2223 mov->next_chunk_offset = sample_file_offset;
2224 // Update current stream state
2225 sc->current_sample = seek_sample - 1; // zero based
2226 sc->left_in_chunk = left_in_chunk;
2227 sc->next_chunk = chunk; // +1 -1 (zero based)
2228 sc->sample_to_chunk_index = sample_to_chunk_idx;
2230 // Update other streams
2231 for (i = 0; i<mov->total_streams; i++) {
2232 MOVStreamContext *msc;
2233 if (i == mov_idx) continue;
2234 // Find the nearest 'next' chunk
2235 msc = mov->streams[i];
2237 b = msc->chunk_count - 1;
2239 m = (a + b + 1) >> 1;
2240 if (msc->chunk_offsets[m] > chunk_file_offset) {
2246 /* av_log(s, AV_LOG_DEBUG, "a=%i (%li) b=%i (%li) m=%i (%li) stream #%i\n"
2247 , a, (long)msc->chunk_offsets[a], b, (long)msc->chunk_offsets[b], m, (long)msc->chunk_offsets[m], i); */
2250 msc->next_chunk = a;
2251 if (msc->chunk_offsets[a] < chunk_file_offset && a < (msc->chunk_count-1))
2254 av_log(s, AV_LOG_DEBUG, "Nearest next chunk for stream #%i is #%i @%lli\n", i, msc->next_chunk+1, msc->chunk_offsets[msc->next_chunk]);
2256 // Compute sample count and index in the sample_to_chunk table (what a pity)
2257 msc->sample_to_chunk_index = 0;
2258 msc->current_sample = 0;
2259 for(; msc->sample_to_chunk_index < (msc->sample_to_chunk_sz - 1)
2260 && msc->sample_to_chunk[msc->sample_to_chunk_index + 1].first <= (1 + msc->next_chunk); msc->sample_to_chunk_index++) {
2261 msc->current_sample += (msc->sample_to_chunk[msc->sample_to_chunk_index + 1].first - msc->sample_to_chunk[msc->sample_to_chunk_index].first) \
2262 * msc->sample_to_chunk[msc->sample_to_chunk_index].count;
2264 msc->current_sample += (msc->next_chunk - (msc->sample_to_chunk[msc->sample_to_chunk_index].first - 1)) * sc->sample_to_chunk[msc->sample_to_chunk_index].count;
2265 msc->left_in_chunk = msc->sample_to_chunk[msc->sample_to_chunk_index].count - 1;
2266 // Find corresponding position in stts (used later to compute dts)
2269 for (msc->sample_to_time_index = 0; msc->sample_to_time_index < msc->stts_count; msc->sample_to_time_index++) {
2270 count = msc->stts_data[msc->sample_to_time_index].count;
2271 duration = msc->stts_data[msc->sample_to_time_index].duration;
2272 if ((sample + count - 1) > msc->current_sample) {
2273 msc->sample_to_time_time = start_time;
2274 msc->sample_to_time_sample = sample;
2278 start_time += count * duration;
2281 for (msc->sample_to_ctime_index = 0; msc->sample_to_ctime_index < msc->ctts_count; msc->sample_to_ctime_index++) {
2282 count = msc->ctts_data[msc->sample_to_ctime_index].count;
2283 duration = msc->ctts_data[msc->sample_to_ctime_index].duration;
2284 if ((sample + count - 1) > msc->current_sample) {
2285 msc->sample_to_ctime_sample = sample;
2291 av_log(s, AV_LOG_DEBUG, "Next Sample for stream #%i is #%i @%i\n", i, msc->current_sample + 1, msc->sample_to_chunk_index + 1);
2298 static int mov_read_close(AVFormatContext *s)
2301 MOVContext *mov = (MOVContext *) s->priv_data;
2302 for(i=0; i<mov->total_streams; i++)
2303 mov_free_stream_context(mov->streams[i]);
2304 /* free color tabs */
2305 for(i=0; i<mov->ctab_size; i++)
2306 av_freep(&mov->ctab[i]);
2307 av_freep(&mov->ctab);
2311 static AVInputFormat mov_iformat = {
2312 "mov,mp4,m4a,3gp,3g2",
2313 "QuickTime/MPEG4 format",
2319 #if defined(MOV_SPLIT_CHUNKS) && defined(MOV_SEEK)
2326 av_register_input_format(&mov_iformat);