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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
33 * First version by Francois Revol revol@free.fr
34 * Seek function by Gael Chardon gael.dev@4now.net
36 * Features and limitations:
37 * - reads most of the QT files I have (at least the structure),
38 * the exceptions are .mov with zlib compressed headers ('cmov' section). It shouldn't be hard to implement.
39 * FIXED, Francois Revol, 07/17/2002
40 * - ffmpeg has nearly none of the usual QuickTime codecs,
41 * although I succesfully dumped raw and mp3 audio tracks off .mov files.
42 * Sample QuickTime files with mp3 audio can be found at: http://www.3ivx.com/showcase.html
43 * - .mp4 parsing is still hazardous, although the format really is QuickTime with some minor changes
44 * (to make .mov parser crash maybe ?), despite what they say in the MPEG FAQ at
45 * http://mpeg.telecomitalialab.com/faq.htm
46 * - the code is quite ugly... maybe I won't do it recursive next time :-)
47 * - seek is not supported with files that contain edit list
49 * Funny I didn't know about http://sourceforge.net/projects/qt-ffmpeg/
50 * when coding this :) (it's a writer anyway)
52 * Reference documents:
53 * http://www.geocities.com/xhelmboyx/quicktime/formats/qtm-layout.txt
55 * http://developer.apple.com/documentation/QuickTime/QTFF/
56 * http://developer.apple.com/documentation/QuickTime/QTFF/qtff.pdf
57 * QuickTime is a trademark of Apple (AFAIK :))
60 #include "qtpalette.h"
66 static const CodecTag mov_video_tags[] = {
67 /* { CODEC_ID_, MKTAG('c', 'v', 'i', 'd') }, *//* Cinepak */
68 /* { CODEC_ID_H263, MKTAG('r', 'a', 'w', ' ') }, *//* Uncompressed RGB */
69 /* { CODEC_ID_H263, MKTAG('Y', 'u', 'v', '2') }, *//* Uncompressed YUV422 */
70 /* { CODEC_ID_RAWVIDEO, MKTAG('A', 'V', 'U', 'I') }, *//* YUV with alpha-channel (AVID Uncompressed) */
75 { CODEC_ID_MJPEG, MKTAG('j', 'p', 'e', 'g') }, /* PhotoJPEG */
76 { CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'e', 'g') }, /* MPEG */
77 { CODEC_ID_MJPEG, MKTAG('m', 'j', 'p', 'a') }, /* Motion-JPEG (format A) */
78 { CODEC_ID_MJPEGB, MKTAG('m', 'j', 'p', 'b') }, /* Motion-JPEG (format B) */
79 { CODEC_ID_MJPEG, MKTAG('A', 'V', 'D', 'J') }, /* MJPEG with alpha-channel (AVID JFIF meridien compressed) */
80 /* { CODEC_ID_MJPEG, MKTAG('A', 'V', 'R', 'n') }, *//* MJPEG with alpha-channel (AVID ABVB/Truevision NuVista) */
81 /* { CODEC_ID_GIF, MKTAG('g', 'i', 'f', ' ') }, *//* embedded gif files as frames (usually one "click to play movie" frame) */
83 { CODEC_ID_SVQ1, MKTAG('S', 'V', 'Q', '1') }, /* Sorenson Video v1 */
84 { CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', '1') }, /* Sorenson Video v1 */
85 { CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', 'i') }, /* Sorenson Video v1 (from QT specs)*/
86 { CODEC_ID_SVQ3, MKTAG('S', 'V', 'Q', '3') }, /* Sorenson Video v3 */
87 { CODEC_ID_MPEG4, MKTAG('m', 'p', '4', 'v') },
88 { CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', 'X') }, /* OpenDiVX *//* sample files at http://heroinewarrior.com/xmovie.php3 use this tag */
89 { CODEC_ID_MPEG4, MKTAG('X', 'V', 'I', 'D') },
90 { CODEC_ID_MPEG4, MKTAG('3', 'I', 'V', '2') }, /* experimental: 3IVX files before ivx D4 4.5.1 */
91 /* { CODEC_ID_, MKTAG('I', 'V', '5', '0') }, *//* Indeo 5.0 */
92 { CODEC_ID_H263, MKTAG('h', '2', '6', '3') }, /* H263 */
93 { CODEC_ID_H263, MKTAG('s', '2', '6', '3') }, /* H263 ?? works */
94 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', ' ') }, /* DV NTSC */
95 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', 'p') }, /* DV PAL */
96 /* { CODEC_ID_DVVIDEO, MKTAG('A', 'V', 'd', 'v') }, *//* AVID dv */
97 { CODEC_ID_VP3, MKTAG('V', 'P', '3', '1') }, /* On2 VP3 */
98 { CODEC_ID_RPZA, MKTAG('r', 'p', 'z', 'a') }, /* Apple Video (RPZA) */
99 { CODEC_ID_CINEPAK, MKTAG('c', 'v', 'i', 'd') }, /* Cinepak */
100 { CODEC_ID_8BPS, MKTAG('8', 'B', 'P', 'S') }, /* Planar RGB (8BPS) */
101 { CODEC_ID_SMC, MKTAG('s', 'm', 'c', ' ') }, /* Apple Graphics (SMC) */
102 { CODEC_ID_QTRLE, MKTAG('r', 'l', 'e', ' ') }, /* Apple Animation (RLE) */
103 { CODEC_ID_QDRAW, MKTAG('q', 'd', 'r', 'w') }, /* QuickDraw */
104 { CODEC_ID_H264, MKTAG('a', 'v', 'c', '1') }, /* AVC-1/H.264 */
105 { CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '2') }, /* MPEG2 produced by Sony HD camera */
106 { CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '3') }, /* HDV produced by FCP */
107 { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '5', 'n') }, /* MPEG2 IMX NTSC 525/60 50mb/s produced by FCP */
108 { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '5', 'p') }, /* MPEG2 IMX PAL 625/50 50mb/s produced by FCP */
109 { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '3', 'n') }, /* MPEG2 IMX NTSC 525/60 30mb/s produced by FCP */
110 { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '3', 'p') }, /* MPEG2 IMX PAL 625/50 30mb/s produced by FCP */
111 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'p', 'p') }, /* DVCPRO PAL produced by FCP */
112 //{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '5') }, /* DVCPRO HD 50i produced by FCP */
113 //{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '6') }, /* DVCPRO HD 60i produced by FCP */
114 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', '5', 'p') }, /* DVCPRO50 PAL produced by FCP */
115 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', '5', 'n') }, /* DVCPRO50 NTSC produced by FCP */
116 { CODEC_ID_DVVIDEO, MKTAG('A', 'V', 'd', 'v') }, /* AVID DV */
117 //{ CODEC_ID_JPEG2000, MKTAG('m', 'j', 'p', '2') }, /* JPEG 2000 produced by FCP */
118 { CODEC_ID_RAWVIDEO, MKTAG('2', 'v', 'u', 'y') }, /* UNCOMPRESSED 8BIT 4:2:2 */
119 { CODEC_ID_NONE, 0 },
122 static const CodecTag mov_audio_tags[] = {
123 { CODEC_ID_PCM_S32BE, MKTAG('i', 'n', '3', '2') },
124 { CODEC_ID_PCM_S24BE, MKTAG('i', 'n', '2', '4') },
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_ADPCM_MS, MKTAG('m', 's', 0x00, 0x02) }, /* MS ADPCM */
134 { CODEC_ID_MACE3, MKTAG('M', 'A', 'C', '3') }, /* Macintosh Audio Compression and Expansion 3:1 */
135 { CODEC_ID_MACE6, MKTAG('M', 'A', 'C', '6') }, /* Macintosh Audio Compression and Expansion 6:1 */
137 { CODEC_ID_MP3, MKTAG('.', 'm', 'p', '3') }, /* MPEG layer 3 */ /* sample files at http://www.3ivx.com/showcase.html use this tag */
138 { CODEC_ID_MP2, 0x6D730055 }, /* MPEG layer 3 */
139 { CODEC_ID_MP2, 0x5500736D }, /* MPEG layer 3 *//* XXX: check endianness */
140 /* { CODEC_ID_OGG_VORBIS, MKTAG('O', 'g', 'g', 'S') }, *//* sample files at http://heroinewarrior.com/xmovie.php3 use this tag */
142 { CODEC_ID_AAC, MKTAG('m', 'p', '4', 'a') }, /* MPEG-4 AAC */
143 /* The standard for mpeg4 audio is still not normalised AFAIK anyway */
144 { CODEC_ID_AMR_NB, MKTAG('s', 'a', 'm', 'r') }, /* AMR-NB 3gp */
145 { CODEC_ID_AMR_WB, MKTAG('s', 'a', 'w', 'b') }, /* AMR-WB 3gp */
146 { CODEC_ID_AC3, MKTAG('m', 's', 0x20, 0x00) }, /* Dolby AC-3 */
147 { CODEC_ID_ALAC,MKTAG('a', 'l', 'a', 'c') }, /* Apple Lossless */
148 { CODEC_ID_QDM2,MKTAG('Q', 'D', 'M', '2') }, /* QDM2 */
149 { CODEC_ID_NONE, 0 },
152 /* the QuickTime file format is quite convoluted...
153 * it has lots of index tables, each indexing something in another one...
154 * Here we just use what is needed to read the chunks
157 typedef struct MOV_sample_to_chunk_tbl {
161 } MOV_sample_to_chunk_tbl;
166 int64_t size; /* total size (excluding the size and type fields) */
176 typedef struct MOV_mdat_atom_s {
183 uint32_t flags; // 24bit
185 /* 0x03 ESDescrTag */
187 #define MP4ODescrTag 0x01
188 #define MP4IODescrTag 0x02
189 #define MP4ESDescrTag 0x03
190 #define MP4DecConfigDescrTag 0x04
191 #define MP4DecSpecificDescrTag 0x05
192 #define MP4SLConfigDescrTag 0x06
193 #define MP4ContentIdDescrTag 0x07
194 #define MP4SupplContentIdDescrTag 0x08
195 #define MP4IPIPtrDescrTag 0x09
196 #define MP4IPMPPtrDescrTag 0x0A
197 #define MP4IPMPDescrTag 0x0B
198 #define MP4RegistrationDescrTag 0x0D
199 #define MP4ESIDIncDescrTag 0x0E
200 #define MP4ESIDRefDescrTag 0x0F
201 #define MP4FileIODescrTag 0x10
202 #define MP4FileODescrTag 0x11
203 #define MP4ExtProfileLevelDescrTag 0x13
204 #define MP4ExtDescrTagsStart 0x80
205 #define MP4ExtDescrTagsEnd 0xFE
206 uint8_t stream_priority;
208 /* 0x04 DecConfigDescrTag */
209 uint8_t object_type_id;
211 /* XXX: really streamType is
212 * only 6bit, followed by:
216 uint32_t buffer_size_db; // 24
217 uint32_t max_bitrate;
218 uint32_t avg_bitrate;
220 /* 0x05 DecSpecificDescrTag */
221 uint8_t decoder_cfg_len;
222 uint8_t *decoder_cfg;
224 /* 0x06 SLConfigDescrTag */
225 uint8_t sl_config_len;
229 struct MOVParseTableEntry;
231 typedef struct MOVStreamContext {
232 int ffindex; /* the ffmpeg stream id */
235 int64_t *chunk_offsets;
237 Time2Sample *stts_data;
239 Time2Sample *ctts_data;
240 int edit_count; /* number of 'edit' (elst atom) */
241 long sample_to_chunk_sz;
242 MOV_sample_to_chunk_tbl *sample_to_chunk;
243 int sample_to_ctime_index;
244 int sample_to_ctime_sample;
254 AVRational sample_size_v1;
257 typedef struct MOVContext {
258 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) */
261 int64_t duration; /* duration of the longest track */
262 int found_moov; /* when both 'moov' and 'mdat' sections has been found */
263 int found_mdat; /* we suppose we have enough data to read the file */
267 /* some streams listed here aren't presented to the ffmpeg API, since they aren't either video nor audio
268 * but we need the info to be able to skip data from those streams in the 'mdat' section
270 MOVStreamContext *streams[MAX_STREAMS];
273 MOV_ctab_t **ctab; /* color tables */
274 const struct MOVParseTableEntry *parse_table; /* could be eventually used to change the table */
275 /* NOTE: for recursion save to/ restore from local variable! */
277 AVPaletteControl palette_control;
278 MOV_mdat_atom_t *mdat_list;
283 /* XXX: it's the first time I make a recursive parser I think... sorry if it's ugly :P */
285 /* those functions parse an atom */
287 1: found what I wanted, exit
288 0: continue to parse next atom
289 -1: error occured, exit
291 typedef int (*mov_parse_function)(MOVContext *ctx, ByteIOContext *pb, MOV_atom_t atom);
293 /* links atom IDs to parse functions */
294 typedef struct MOVParseTableEntry {
296 mov_parse_function func;
297 } MOVParseTableEntry;
299 static int mov_read_leaf(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
302 url_fskip(pb, atom.size);
303 /* url_seek(pb, atom_offset+atom.size, SEEK_SET); */
307 static int mov_read_default(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
309 int64_t total_size = 0;
314 a.offset = atom.offset;
317 atom.size = 0x7fffffffffffffffLL;
318 while(((total_size + 8) < atom.size) && !url_feof(pb) && !err) {
322 a.size = get_be32(pb);
323 a.type = get_le32(pb);
327 dprintf("type: %08x %.4s sz: %"PRIx64" %"PRIx64" %"PRIx64"\n", a.type, (char*)&a.type, a.size, atom.size, total_size);
328 if (a.size == 1) { /* 64 bit extended size */
329 a.size = get_be64(pb) - 8;
334 a.size = atom.size - total_size;
338 for (i = 0; c->parse_table[i].type != 0L
339 && c->parse_table[i].type != a.type; i++)
347 if (c->parse_table[i].type == 0) { /* skip leaf atoms data */
348 url_fskip(pb, a.size);
350 offset_t start_pos = url_ftell(pb);
352 err = (c->parse_table[i].func)(c, pb, a);
353 left = a.size - url_ftell(pb) + start_pos;
354 if (left > 0) /* skip garbage at atom end */
359 total_size += a.size;
362 if (!err && total_size < atom.size && atom.size < 0x7ffff) {
363 url_fskip(pb, atom.size - total_size);
369 static int mov_read_ctab(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
372 url_fskip(pb, atom.size); // for now
374 VERY VERY BROKEN, NEVER execute this, needs rewrite
377 c->ctab = av_realloc(c->ctab, ++c->ctab_size);
378 t = c->ctab[c->ctab_size];
379 t->seed = get_be32(pb);
380 t->flags = get_be16(pb);
381 t->size = get_be16(pb) + 1;
382 len = 2 * t->size * 4;
384 t->clrs = av_malloc(len); // 16bit A R G B
386 get_buffer(pb, t->clrs, len);
393 static int mov_read_hdlr(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
395 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
400 get_byte(pb); /* version */
401 get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
404 ctype = get_le32(pb);
405 type = get_le32(pb); /* component subtype */
407 dprintf("ctype= %c%c%c%c (0x%08lx)\n", *((char *)&ctype), ((char *)&ctype)[1], ((char *)&ctype)[2], ((char *)&ctype)[3], (long) ctype);
408 dprintf("stype= %c%c%c%c\n", *((char *)&type), ((char *)&type)[1], ((char *)&type)[2], ((char *)&type)[3]);
409 if(ctype == MKTAG('m', 'h', 'l', 'r')) /* MOV */
413 if(type == MKTAG('v', 'i', 'd', 'e'))
414 st->codec->codec_type = CODEC_TYPE_VIDEO;
415 else if(type == MKTAG('s', 'o', 'u', 'n'))
416 st->codec->codec_type = CODEC_TYPE_AUDIO;
417 get_be32(pb); /* component manufacture */
418 get_be32(pb); /* component flags */
419 get_be32(pb); /* component flags mask */
422 return 0; /* nothing left to read */
423 /* XXX: MP4 uses a C string, not a pascal one */
428 while(get_byte(pb) && (++len < (atom.size - 24)));
430 /* .mov: PASCAL string */
435 url_fskip(pb, atom.size - (url_ftell(pb) - atom.offset));
439 static int mov_mp4_read_descr_len(ByteIOContext *pb)
444 int c = get_byte(pb);
445 len = (len << 7) | (c & 0x7f);
452 static int mov_mp4_read_descr(ByteIOContext *pb, int *tag)
456 len = mov_mp4_read_descr_len(pb);
457 dprintf("MPEG4 description: tag=0x%02x len=%d\n", *tag, len);
461 static int mov_read_esds(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
463 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
464 MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
467 /* Well, broken but suffisant for some MP4 streams */
468 get_be32(pb); /* version + flags */
469 len = mov_mp4_read_descr(pb, &tag);
470 if (tag == MP4ESDescrTag) {
471 get_be16(pb); /* ID */
472 get_byte(pb); /* priority */
474 get_be16(pb); /* ID */
476 len = mov_mp4_read_descr(pb, &tag);
477 if (tag == MP4DecConfigDescrTag) {
478 sc->esds.object_type_id = get_byte(pb);
479 sc->esds.stream_type = get_byte(pb);
480 sc->esds.buffer_size_db = get_be24(pb);
481 sc->esds.max_bitrate = get_be32(pb);
482 sc->esds.avg_bitrate = get_be32(pb);
484 st->codec->codec_id= codec_get_id(ff_mov_obj_type, sc->esds.object_type_id);
485 dprintf("esds object type id %d\n", sc->esds.object_type_id);
486 len = mov_mp4_read_descr(pb, &tag);
487 if (tag == MP4DecSpecificDescrTag) {
488 dprintf("Specific MPEG4 header len=%d\n", len);
489 st->codec->extradata = (uint8_t*) av_mallocz(len + FF_INPUT_BUFFER_PADDING_SIZE);
490 if (st->codec->extradata) {
491 get_buffer(pb, st->codec->extradata, len);
492 st->codec->extradata_size = len;
494 if ((*(uint8_t *)st->codec->extradata >> 3) == 29) {
495 st->codec->codec_id = CODEC_ID_MP3ON4;
503 /* this atom contains actual media data */
504 static int mov_read_mdat(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
506 if(atom.size == 0) /* wrong one (MP4) */
508 c->mdat_list = av_realloc(c->mdat_list, (c->mdat_count + 1) * sizeof(*c->mdat_list));
509 c->mdat_list[c->mdat_count].offset = atom.offset;
510 c->mdat_list[c->mdat_count].size = atom.size;
513 c->mdat_offset = atom.offset;
514 c->mdat_size = atom.size;
516 return 1; /* found both, just go */
517 url_fskip(pb, atom.size);
518 return 0; /* now go for moov */
521 static int mov_read_ftyp(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
523 uint32_t type = get_le32(pb);
527 case MKTAG('i', 's', 'o', 'm'):
528 case MKTAG('m', 'p', '4', '1'):
529 case MKTAG('m', 'p', '4', '2'):
530 case MKTAG('3', 'g', 'p', '1'):
531 case MKTAG('3', 'g', 'p', '2'):
532 case MKTAG('3', 'g', '2', 'a'):
533 case MKTAG('3', 'g', 'p', '3'):
534 case MKTAG('3', 'g', 'p', '4'):
535 case MKTAG('3', 'g', 'p', '5'):
536 case MKTAG('m', 'm', 'p', '4'): /* Mobile MP4 */
537 case MKTAG('M', '4', 'A', ' '): /* Apple iTunes AAC-LC Audio */
538 case MKTAG('M', '4', 'P', ' '): /* Apple iTunes AAC-LC Protected Audio */
539 case MKTAG('m', 'j', 'p', '2'): /* Motion Jpeg 2000 */
541 case MKTAG('q', 't', ' ', ' '):
543 av_log(c->fc, AV_LOG_DEBUG, "ISO: File Type Major Brand: %.4s\n",(char *)&type);
545 get_be32(pb); /* minor version */
546 url_fskip(pb, atom.size - 8);
550 /* this atom should contain all header atoms */
551 static int mov_read_moov(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
555 err = mov_read_default(c, pb, atom);
556 /* we parsed the 'moov' atom, we can terminate the parsing as soon as we find the 'mdat' */
557 /* so we don't parse the whole file if over a network */
560 return 1; /* found both, just go */
561 return 0; /* now go for mdat */
565 static int mov_read_mdhd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
567 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
568 MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
569 int version = get_byte(pb);
573 return 1; /* unsupported */
575 get_byte(pb); get_byte(pb);
576 get_byte(pb); /* flags */
582 get_be32(pb); /* creation time */
583 get_be32(pb); /* modification time */
586 sc->time_scale = get_be32(pb);
587 st->duration = (version == 1) ? get_be64(pb) : get_be32(pb); /* duration */
589 lang = get_be16(pb); /* language */
590 ff_mov_lang_to_iso639(lang, st->language);
591 get_be16(pb); /* quality */
596 static int mov_read_mvhd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
598 int version = get_byte(pb); /* version */
599 get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
605 get_be32(pb); /* creation time */
606 get_be32(pb); /* modification time */
608 c->time_scale = get_be32(pb); /* time scale */
610 av_log(NULL, AV_LOG_DEBUG, "time scale = %i\n", c->time_scale);
612 c->duration = (version == 1) ? get_be64(pb) : get_be32(pb); /* duration */
613 get_be32(pb); /* preferred scale */
615 get_be16(pb); /* preferred volume */
617 url_fskip(pb, 10); /* reserved */
619 url_fskip(pb, 36); /* display matrix */
621 get_be32(pb); /* preview time */
622 get_be32(pb); /* preview duration */
623 get_be32(pb); /* poster time */
624 get_be32(pb); /* selection time */
625 get_be32(pb); /* selection duration */
626 get_be32(pb); /* current time */
627 get_be32(pb); /* next track ID */
632 static int mov_read_smi(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
634 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
636 if((uint64_t)atom.size > (1<<30))
639 // currently SVQ3 decoder expect full STSD header - so let's fake it
640 // this should be fixed and just SMI header should be passed
641 av_free(st->codec->extradata);
642 st->codec->extradata_size = 0x5a + atom.size;
643 st->codec->extradata = (uint8_t*) av_mallocz(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
645 if (st->codec->extradata) {
646 strcpy(st->codec->extradata, "SVQ3"); // fake
647 get_buffer(pb, st->codec->extradata + 0x5a, atom.size);
648 dprintf("Reading SMI %"PRId64" %s\n", atom.size, (char*)st->codec->extradata + 0x5a);
650 url_fskip(pb, atom.size);
655 static int mov_read_enda(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
657 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
658 int little_endian = get_be16(pb);
661 switch (st->codec->codec_id) {
662 case CODEC_ID_PCM_S24BE:
663 st->codec->codec_id = CODEC_ID_PCM_S24LE;
665 case CODEC_ID_PCM_S32BE:
666 st->codec->codec_id = CODEC_ID_PCM_S32LE;
675 static int mov_read_alac(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
677 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
679 // currently ALAC decoder expect full atom header - so let's fake it
680 // this should be fixed and just ALAC header should be passed
682 av_free(st->codec->extradata);
683 st->codec->extradata_size = 36;
684 st->codec->extradata = (uint8_t*) av_mallocz(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
686 if (st->codec->extradata) {
687 strcpy(st->codec->extradata + 4, "alac"); // fake
688 get_buffer(pb, st->codec->extradata + 8, 36 - 8);
689 dprintf("Reading alac %d %s\n", st->codec->extradata_size, (char*)st->codec->extradata);
691 url_fskip(pb, atom.size);
695 static int mov_read_wave(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
697 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
699 if((uint64_t)atom.size > (1<<30))
702 if (st->codec->codec_id == CODEC_ID_QDM2) {
703 // pass all frma atom to codec, needed at least for QDM2
704 av_free(st->codec->extradata);
705 st->codec->extradata_size = atom.size;
706 st->codec->extradata = (uint8_t*) av_mallocz(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
708 if (st->codec->extradata) {
709 get_buffer(pb, st->codec->extradata, atom.size);
711 url_fskip(pb, atom.size);
712 } else if (atom.size > 8) { /* to read frma, esds atoms */
713 mov_read_default(c, pb, atom);
715 url_fskip(pb, atom.size);
719 static int mov_read_jp2h(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
721 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
723 if((uint64_t)atom.size > (1<<30))
726 av_free(st->codec->extradata);
728 st->codec->extradata_size = atom.size + 8;
729 st->codec->extradata = (uint8_t*) av_mallocz(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
731 /* pass all jp2h atom to codec */
732 if (st->codec->extradata) {
733 strcpy(st->codec->extradata + 4, "jp2h");
734 get_buffer(pb, st->codec->extradata + 8, atom.size);
736 url_fskip(pb, atom.size);
740 static int mov_read_avcC(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
742 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
744 if((uint64_t)atom.size > (1<<30))
747 av_free(st->codec->extradata);
749 st->codec->extradata_size = atom.size;
750 st->codec->extradata = (uint8_t*) av_mallocz(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
752 if (st->codec->extradata) {
753 get_buffer(pb, st->codec->extradata, atom.size);
755 url_fskip(pb, atom.size);
760 static int mov_read_stco(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
762 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
763 MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
764 unsigned int i, entries;
766 get_byte(pb); /* version */
767 get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
769 entries = get_be32(pb);
771 if(entries >= UINT_MAX/sizeof(int64_t))
774 sc->chunk_count = entries;
775 sc->chunk_offsets = (int64_t*) av_malloc(entries * sizeof(int64_t));
776 if (!sc->chunk_offsets)
778 if (atom.type == MKTAG('s', 't', 'c', 'o')) {
779 for(i=0; i<entries; i++) {
780 sc->chunk_offsets[i] = get_be32(pb);
782 } else if (atom.type == MKTAG('c', 'o', '6', '4')) {
783 for(i=0; i<entries; i++) {
784 sc->chunk_offsets[i] = get_be64(pb);
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 get_byte(pb); /* version */
813 get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
815 entries = get_be32(pb);
817 while(entries--) { //Parsing Sample description table
819 MOV_atom_t a = { 0, 0, 0 };
820 offset_t start_pos = url_ftell(pb);
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 if (st->codec->codec_tag) {
829 /* multiple fourcc, just skip for now */
830 url_fskip(pb, size - (url_ftell(pb) - start_pos));
834 st->codec->codec_tag = format;
835 id = codec_get_id(mov_audio_tags, format);
837 st->codec->codec_type = CODEC_TYPE_AUDIO;
838 } else if (format && format != MKTAG('m', 'p', '4', 's')) { /* skip old asf mpeg4 tag */
839 id = codec_get_id(mov_video_tags, format);
841 id = codec_get_id(codec_bmp_tags, format);
843 st->codec->codec_type = CODEC_TYPE_VIDEO;
846 dprintf("size=%d 4CC= %c%c%c%c codec_type=%d\n",
848 (format >> 0) & 0xff, (format >> 8) & 0xff, (format >> 16) & 0xff, (format >> 24) & 0xff,
849 st->codec->codec_type);
851 if(st->codec->codec_type==CODEC_TYPE_VIDEO) {
852 st->codec->codec_id = id;
853 get_be16(pb); /* version */
854 get_be16(pb); /* revision level */
855 get_be32(pb); /* vendor */
856 get_be32(pb); /* temporal quality */
857 get_be32(pb); /* spacial quality */
859 st->codec->width = get_be16(pb); /* width */
860 st->codec->height = get_be16(pb); /* height */
862 get_be32(pb); /* horiz resolution */
863 get_be32(pb); /* vert resolution */
864 get_be32(pb); /* data size, always 0 */
865 frames_per_sample = get_be16(pb); /* frames per samples */
867 av_log(NULL, AV_LOG_DEBUG, "frames/samples = %d\n", frames_per_sample);
869 get_buffer(pb, codec_name, 32); /* codec name, pascal string (FIXME: true for mp4?) */
870 if (codec_name[0] <= 31) {
871 memcpy(st->codec->codec_name, &codec_name[1],codec_name[0]);
872 st->codec->codec_name[codec_name[0]] = 0;
875 st->codec->bits_per_sample = get_be16(pb); /* depth */
876 st->codec->color_table_id = get_be16(pb); /* colortable id */
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;
947 } else if(st->codec->codec_type==CODEC_TYPE_AUDIO) {
949 uint16_t version = get_be16(pb);
951 st->codec->codec_id = id;
952 get_be16(pb); /* revision level */
953 get_be32(pb); /* vendor */
955 st->codec->channels = get_be16(pb); /* channel count */
956 dprintf("audio channels %d\n", st->codec->channels);
957 st->codec->bits_per_sample = get_be16(pb); /* sample size */
958 /* do we need to force to 16 for AMR ? */
960 /* handle specific s8 codec */
961 get_be16(pb); /* compression id = 0*/
962 get_be16(pb); /* packet size = 0 */
964 st->codec->sample_rate = ((get_be32(pb) >> 16));
966 switch (st->codec->codec_id) {
967 case CODEC_ID_PCM_S8:
968 case CODEC_ID_PCM_U8:
969 if (st->codec->bits_per_sample == 16)
970 st->codec->codec_id = CODEC_ID_PCM_S16BE;
972 case CODEC_ID_PCM_S16LE:
973 case CODEC_ID_PCM_S16BE:
974 if (st->codec->bits_per_sample == 8)
975 st->codec->codec_id = CODEC_ID_PCM_S8;
977 case CODEC_ID_AMR_WB:
978 st->codec->sample_rate = 16000; /* should really we ? */
979 st->codec->channels=1; /* really needed */
981 case CODEC_ID_AMR_NB:
982 st->codec->sample_rate = 8000; /* should really we ? */
983 st->codec->channels=1; /* really needed */
989 bits_per_sample = av_get_bits_per_sample(st->codec->codec_id);
990 if (bits_per_sample) {
991 st->codec->bits_per_sample = bits_per_sample;
992 sc->sample_size = (bits_per_sample >> 3) * st->codec->channels;
995 //Read QT version 1 fields. In version 0 theese dont exist
996 dprintf("version =%d mp4=%d\n",version,c->mp4);
998 sc->sample_size_v1.den = get_be32(pb); /* samples per packet */
999 get_be32(pb); /* bytes per packet */
1000 sc->sample_size_v1.num = get_be32(pb); /* bytes per frame */
1001 get_be32(pb); /* bytes per sample */
1002 } else if(version==2) {
1003 get_be32(pb); /* sizeof struct only */
1004 st->codec->sample_rate = av_int2dbl(get_be64(pb)); /* float 64 */
1005 st->codec->channels = get_be32(pb);
1006 get_be32(pb); /* always 0x7F000000 */
1007 get_be32(pb); /* bits per channel if sound is uncompressed */
1008 get_be32(pb); /* lcpm format specific flag */
1009 get_be32(pb); /* bytes per audio packet if constant */
1010 get_be32(pb); /* lpcm frames per audio packet if constant */
1013 /* other codec type, just skip (rtp, mp4s, tmcd ...) */
1014 url_fskip(pb, size - (url_ftell(pb) - start_pos));
1016 /* this will read extra atoms at the end (wave, alac, damr, avcC, SMI ...) */
1017 a.size = size - (url_ftell(pb) - start_pos);
1019 mov_read_default(c, pb, a);
1020 else if (a.size > 0)
1021 url_fskip(pb, a.size);
1024 if(st->codec->codec_type==CODEC_TYPE_AUDIO && st->codec->sample_rate==0 && sc->time_scale>1) {
1025 st->codec->sample_rate= sc->time_scale;
1028 switch (st->codec->codec_id) {
1032 #ifdef CONFIG_VORBIS_DECODER
1033 case CODEC_ID_VORBIS:
1035 case CODEC_ID_MP3ON4:
1036 st->codec->sample_rate= 0; /* let decoder init parameters properly */
1045 static int mov_read_stsc(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1047 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
1048 MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
1049 unsigned int i, entries;
1051 get_byte(pb); /* version */
1052 get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
1054 entries = get_be32(pb);
1056 if(entries >= UINT_MAX / sizeof(MOV_sample_to_chunk_tbl))
1060 av_log(NULL, AV_LOG_DEBUG, "track[%i].stsc.entries = %i\n", c->fc->nb_streams-1, entries);
1062 sc->sample_to_chunk_sz = entries;
1063 sc->sample_to_chunk = (MOV_sample_to_chunk_tbl*) av_malloc(entries * sizeof(MOV_sample_to_chunk_tbl));
1064 if (!sc->sample_to_chunk)
1066 for(i=0; i<entries; i++) {
1067 sc->sample_to_chunk[i].first = get_be32(pb);
1068 sc->sample_to_chunk[i].count = get_be32(pb);
1069 sc->sample_to_chunk[i].id = get_be32(pb);
1074 static int mov_read_stss(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1076 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
1077 MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
1078 unsigned int i, entries;
1080 get_byte(pb); /* version */
1081 get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
1083 entries = get_be32(pb);
1085 if(entries >= UINT_MAX / sizeof(long))
1088 sc->keyframe_count = entries;
1090 av_log(NULL, AV_LOG_DEBUG, "keyframe_count = %ld\n", sc->keyframe_count);
1092 sc->keyframes = (long*) av_malloc(entries * sizeof(long));
1095 for(i=0; i<entries; i++) {
1096 sc->keyframes[i] = get_be32(pb);
1098 /* av_log(NULL, AV_LOG_DEBUG, "keyframes[]=%ld\n", sc->keyframes[i]); */
1104 static int mov_read_stsz(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1106 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
1107 MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
1108 unsigned int i, entries, sample_size;
1110 get_byte(pb); /* version */
1111 get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
1113 sample_size = get_be32(pb);
1114 if (!sc->sample_size) /* do not overwrite value computed in stsd */
1115 sc->sample_size = sample_size;
1116 entries = get_be32(pb);
1117 if(entries >= UINT_MAX / sizeof(long))
1120 sc->sample_count = entries;
1125 av_log(NULL, AV_LOG_DEBUG, "sample_size = %ld sample_count = %ld\n", sc->sample_size, sc->sample_count);
1127 sc->sample_sizes = (long*) av_malloc(entries * sizeof(long));
1128 if (!sc->sample_sizes)
1130 for(i=0; i<entries; i++) {
1131 sc->sample_sizes[i] = get_be32(pb);
1133 av_log(NULL, AV_LOG_DEBUG, "sample_sizes[]=%ld\n", sc->sample_sizes[i]);
1139 static int mov_read_stts(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1141 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
1142 MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
1143 unsigned int i, entries;
1145 int64_t total_sample_count=0;
1147 get_byte(pb); /* version */
1148 get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
1149 entries = get_be32(pb);
1150 if(entries >= UINT_MAX / sizeof(Time2Sample))
1153 sc->stts_count = entries;
1154 sc->stts_data = av_malloc(entries * sizeof(Time2Sample));
1157 av_log(NULL, AV_LOG_DEBUG, "track[%i].stts.entries = %i\n", c->fc->nb_streams-1, entries);
1162 for(i=0; i<entries; i++) {
1163 int sample_duration;
1166 sample_count=get_be32(pb);
1167 sample_duration = get_be32(pb);
1168 sc->stts_data[i].count= sample_count;
1169 sc->stts_data[i].duration= sample_duration;
1171 sc->time_rate= ff_gcd(sc->time_rate, sample_duration);
1173 dprintf("sample_count=%d, sample_duration=%d\n",sample_count,sample_duration);
1175 duration+=(int64_t)sample_duration*sample_count;
1176 total_sample_count+=sample_count;
1179 st->nb_frames= total_sample_count;
1181 st->duration= duration;
1185 static int mov_read_ctts(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1187 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
1188 MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
1189 unsigned int i, entries;
1191 get_byte(pb); /* version */
1192 get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
1193 entries = get_be32(pb);
1194 if(entries >= UINT_MAX / sizeof(Time2Sample))
1197 sc->ctts_count = entries;
1198 sc->ctts_data = av_malloc(entries * sizeof(Time2Sample));
1200 dprintf("track[%i].ctts.entries = %i\n", c->fc->nb_streams-1, entries);
1202 for(i=0; i<entries; i++) {
1203 int count =get_be32(pb);
1204 int duration =get_be32(pb);
1207 av_log(c->fc, AV_LOG_ERROR, "negative ctts, ignoring\n");
1209 url_fskip(pb, 8 * (entries - i - 1));
1212 sc->ctts_data[i].count = count;
1213 sc->ctts_data[i].duration= duration;
1215 sc->time_rate= ff_gcd(sc->time_rate, duration);
1220 static int mov_read_trak(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1223 MOVStreamContext *sc;
1225 st = av_new_stream(c->fc, c->fc->nb_streams);
1227 sc = (MOVStreamContext*) av_mallocz(sizeof(MOVStreamContext));
1234 st->codec->codec_type = CODEC_TYPE_DATA;
1235 st->start_time = 0; /* XXX: check */
1236 c->streams[c->fc->nb_streams-1] = sc;
1238 return mov_read_default(c, pb, atom);
1241 static int mov_read_tkhd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1243 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
1244 int version = get_byte(pb);
1246 get_byte(pb); get_byte(pb);
1247 get_byte(pb); /* flags */
1249 MOV_TRACK_ENABLED 0x0001
1250 MOV_TRACK_IN_MOVIE 0x0002
1251 MOV_TRACK_IN_PREVIEW 0x0004
1252 MOV_TRACK_IN_POSTER 0x0008
1259 get_be32(pb); /* creation time */
1260 get_be32(pb); /* modification time */
1262 st->id = (int)get_be32(pb); /* track id (NOT 0 !)*/
1263 get_be32(pb); /* reserved */
1264 st->start_time = 0; /* check */
1265 (version == 1) ? get_be64(pb) : get_be32(pb); /* highlevel (considering edits) duration in movie timebase */
1266 get_be32(pb); /* reserved */
1267 get_be32(pb); /* reserved */
1269 get_be16(pb); /* layer */
1270 get_be16(pb); /* alternate group */
1271 get_be16(pb); /* volume */
1272 get_be16(pb); /* reserved */
1274 url_fskip(pb, 36); /* display matrix */
1276 /* those are fixed-point */
1277 get_be32(pb); /* track width */
1278 get_be32(pb); /* track height */
1283 /* this atom should be null (from specs), but some buggy files put the 'moov' atom inside it... */
1284 /* like the files created with Adobe Premiere 5.0, for samples see */
1285 /* http://graphics.tudelft.nl/~wouter/publications/soundtests/ */
1286 static int mov_read_wide(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1291 return 0; /* continue */
1292 if (get_be32(pb) != 0) { /* 0 sized mdat atom... use the 'wide' atom size */
1293 url_fskip(pb, atom.size - 4);
1296 atom.type = get_le32(pb);
1299 if (atom.type != MKTAG('m', 'd', 'a', 't')) {
1300 url_fskip(pb, atom.size);
1303 err = mov_read_mdat(c, pb, atom);
1309 static int null_read_packet(void *opaque, uint8_t *buf, int buf_size)
1314 static int mov_read_cmov(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1318 uint8_t *moov_data; /* uncompressed data */
1319 long cmov_len, moov_len;
1322 get_be32(pb); /* dcom atom */
1323 if (get_le32(pb) != MKTAG( 'd', 'c', 'o', 'm' ))
1325 if (get_le32(pb) != MKTAG( 'z', 'l', 'i', 'b' )) {
1326 av_log(NULL, AV_LOG_ERROR, "unknown compression for cmov atom !");
1329 get_be32(pb); /* cmvd atom */
1330 if (get_le32(pb) != MKTAG( 'c', 'm', 'v', 'd' ))
1332 moov_len = get_be32(pb); /* uncompressed size */
1333 cmov_len = atom.size - 6 * 4;
1335 cmov_data = (uint8_t *) av_malloc(cmov_len);
1338 moov_data = (uint8_t *) av_malloc(moov_len);
1343 get_buffer(pb, cmov_data, cmov_len);
1344 if(uncompress (moov_data, (uLongf *) &moov_len, (const Bytef *)cmov_data, cmov_len) != Z_OK)
1346 if(init_put_byte(&ctx, moov_data, moov_len, 0, NULL, null_read_packet, NULL, NULL) != 0)
1348 ctx.buf_end = ctx.buffer + moov_len;
1349 atom.type = MKTAG( 'm', 'o', 'o', 'v' );
1351 atom.size = moov_len;
1353 // { int fd = open("/tmp/uncompheader.mov", O_WRONLY | O_CREAT); write(fd, moov_data, moov_len); close(fd); }
1355 ret = mov_read_default(c, &ctx, atom);
1363 /* edit list atom */
1364 static int mov_read_elst(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1368 get_byte(pb); /* version */
1369 get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
1370 edit_count= c->streams[c->fc->nb_streams-1]->edit_count = get_be32(pb); /* entries */
1372 for(i=0; i<edit_count; i++){
1373 get_be32(pb); /* Track duration */
1374 get_be32(pb); /* Media time */
1375 get_be32(pb); /* Media rate */
1377 dprintf("track[%i].edit_count = %i\n", c->fc->nb_streams-1, c->streams[c->fc->nb_streams-1]->edit_count);
1381 static const MOVParseTableEntry mov_default_parse_table[] = {
1383 { MKTAG( 'c', 'o', '6', '4' ), mov_read_stco },
1384 { MKTAG( 'c', 'p', 'r', 't' ), mov_read_default },
1385 { MKTAG( 'c', 'r', 'h', 'd' ), mov_read_default },
1386 { MKTAG( 'c', 't', 't', 's' ), mov_read_ctts }, /* composition time to sample */
1387 { MKTAG( 'd', 'i', 'n', 'f' ), mov_read_default }, /* data information */
1388 { MKTAG( 'd', 'p', 'n', 'd' ), mov_read_leaf },
1389 { MKTAG( 'd', 'r', 'e', 'f' ), mov_read_leaf },
1390 { MKTAG( 'e', 'd', 't', 's' ), mov_read_default },
1391 { MKTAG( 'e', 'l', 's', 't' ), mov_read_elst },
1392 { MKTAG( 'e', 'n', 'd', 'a' ), mov_read_enda },
1393 { MKTAG( 'f', 'r', 'e', 'e' ), mov_read_leaf },
1394 { MKTAG( 'f', 't', 'y', 'p' ), mov_read_ftyp },
1395 { MKTAG( 'h', 'd', 'l', 'r' ), mov_read_hdlr },
1396 { MKTAG( 'h', 'i', 'n', 't' ), mov_read_leaf },
1397 { MKTAG( 'h', 'm', 'h', 'd' ), mov_read_leaf },
1398 { MKTAG( 'i', 'o', 'd', 's' ), mov_read_leaf },
1399 { MKTAG( 'j', 'p', '2', 'h' ), mov_read_jp2h },
1400 { MKTAG( 'm', 'd', 'a', 't' ), mov_read_mdat },
1401 { MKTAG( 'm', 'd', 'h', 'd' ), mov_read_mdhd },
1402 { MKTAG( 'm', 'd', 'i', 'a' ), mov_read_default },
1403 { MKTAG( 'm', 'i', 'n', 'f' ), mov_read_default },
1404 { MKTAG( 'm', 'o', 'o', 'v' ), mov_read_moov },
1405 { MKTAG( 'm', 'p', '4', 'a' ), mov_read_default },
1406 { MKTAG( 'm', 'p', '4', 's' ), mov_read_default },
1407 { MKTAG( 'm', 'p', '4', 'v' ), mov_read_default },
1408 { MKTAG( 'm', 'p', 'o', 'd' ), mov_read_leaf },
1409 { MKTAG( 'm', 'v', 'h', 'd' ), mov_read_mvhd },
1410 { MKTAG( 'n', 'm', 'h', 'd' ), mov_read_leaf },
1411 { MKTAG( 'o', 'd', 'h', 'd' ), mov_read_default },
1412 { MKTAG( 's', 'd', 'h', 'd' ), mov_read_default },
1413 { MKTAG( 's', 'k', 'i', 'p' ), mov_read_leaf },
1414 { MKTAG( 's', 'm', 'h', 'd' ), mov_read_leaf }, /* sound media info header */
1415 { MKTAG( 'S', 'M', 'I', ' ' ), mov_read_smi }, /* Sorenson extension ??? */
1416 { MKTAG( 'a', 'l', 'a', 'c' ), mov_read_alac }, /* alac specific atom */
1417 { MKTAG( 'a', 'v', 'c', 'C' ), mov_read_avcC },
1418 { MKTAG( 's', 't', 'b', 'l' ), mov_read_default },
1419 { MKTAG( 's', 't', 'c', 'o' ), mov_read_stco },
1420 { MKTAG( 's', 't', 'd', 'p' ), mov_read_default },
1421 { MKTAG( 's', 't', 's', 'c' ), mov_read_stsc },
1422 { MKTAG( 's', 't', 's', 'd' ), mov_read_stsd }, /* sample description */
1423 { MKTAG( 's', 't', 's', 'h' ), mov_read_default },
1424 { MKTAG( 's', 't', 's', 's' ), mov_read_stss }, /* sync sample */
1425 { MKTAG( 's', 't', 's', 'z' ), mov_read_stsz }, /* sample size */
1426 { MKTAG( 's', 't', 't', 's' ), mov_read_stts },
1427 { MKTAG( 't', 'k', 'h', 'd' ), mov_read_tkhd }, /* track header */
1428 { MKTAG( 't', 'r', 'a', 'k' ), mov_read_trak },
1429 { MKTAG( 't', 'r', 'e', 'f' ), mov_read_default }, /* not really */
1430 { MKTAG( 'u', 'd', 't', 'a' ), mov_read_leaf },
1431 { MKTAG( 'u', 'r', 'l', ' ' ), mov_read_leaf },
1432 { MKTAG( 'u', 'r', 'n', ' ' ), mov_read_leaf },
1433 { MKTAG( 'u', 'u', 'i', 'd' ), mov_read_leaf },
1434 { MKTAG( 'v', 'm', 'h', 'd' ), mov_read_leaf }, /* video media info header */
1435 { MKTAG( 'w', 'a', 'v', 'e' ), mov_read_wave },
1437 { MKTAG( 'M', 'D', 'E', 'S' ), mov_read_leaf },
1439 { MKTAG( 'c', 'h', 'a', 'p' ), mov_read_leaf },
1440 { MKTAG( 'c', 'l', 'i', 'p' ), mov_read_default },
1441 { MKTAG( 'c', 'r', 'g', 'n' ), mov_read_leaf },
1442 { MKTAG( 'c', 't', 'a', 'b' ), mov_read_ctab },
1443 { MKTAG( 'e', 's', 'd', 's' ), mov_read_esds },
1444 { MKTAG( 'k', 'm', 'a', 't' ), mov_read_leaf },
1445 { MKTAG( 'm', 'a', 't', 't' ), mov_read_default },
1446 { MKTAG( 'r', 'd', 'r', 'f' ), mov_read_leaf },
1447 { MKTAG( 'r', 'm', 'd', 'a' ), mov_read_default },
1448 { MKTAG( 'r', 'm', 'd', 'r' ), mov_read_leaf },
1449 { MKTAG( 'r', 'm', 'r', 'a' ), mov_read_default },
1450 { MKTAG( 's', 'c', 'p', 't' ), mov_read_leaf },
1451 { MKTAG( 's', 's', 'r', 'c' ), mov_read_leaf },
1452 { MKTAG( 's', 'y', 'n', 'c' ), mov_read_leaf },
1453 { MKTAG( 't', 'c', 'm', 'd' ), mov_read_leaf },
1454 { MKTAG( 'w', 'i', 'd', 'e' ), mov_read_wide }, /* place holder */
1455 //{ MKTAG( 'r', 'm', 'q', 'u' ), mov_read_leaf },
1457 { MKTAG( 'c', 'm', 'o', 'v' ), mov_read_cmov },
1459 { MKTAG( 'c', 'm', 'o', 'v' ), mov_read_leaf },
1461 { 0L, mov_read_leaf }
1464 static void mov_free_stream_context(MOVStreamContext *sc)
1467 av_freep(&sc->ctts_data);
1472 /* XXX: is it sufficient ? */
1473 static int mov_probe(AVProbeData *p)
1475 unsigned int offset;
1479 /* check file header */
1480 if (p->buf_size <= 12)
1484 /* ignore invalid offset */
1485 if ((offset + 8) > (unsigned int)p->buf_size)
1487 tag = LE_32(p->buf + offset + 4);
1489 /* check for obvious tags */
1490 case MKTAG( 'j', 'P', ' ', ' ' ): /* jpeg 2000 signature */
1491 case MKTAG( 'm', 'o', 'o', 'v' ):
1492 case MKTAG( 'm', 'd', 'a', 't' ):
1493 case MKTAG( 'p', 'n', 'o', 't' ): /* detect movs with preview pics like ew.mov and april.mov */
1494 case MKTAG( 'u', 'd', 't', 'a' ): /* Packet Video PVAuthor adds this and a lot of more junk */
1495 return AVPROBE_SCORE_MAX;
1496 /* those are more common words, so rate then a bit less */
1497 case MKTAG( 'w', 'i', 'd', 'e' ):
1498 case MKTAG( 'f', 'r', 'e', 'e' ):
1499 case MKTAG( 'j', 'u', 'n', 'k' ):
1500 case MKTAG( 'p', 'i', 'c', 't' ):
1501 return AVPROBE_SCORE_MAX - 5;
1502 case MKTAG( 'f', 't', 'y', 'p' ):
1503 case MKTAG( 's', 'k', 'i', 'p' ):
1504 case MKTAG( 'u', 'u', 'i', 'd' ):
1505 offset = BE_32(p->buf+offset) + offset;
1506 /* if we only find those cause probedata is too small at least rate them */
1507 score = AVPROBE_SCORE_MAX - 50;
1510 /* unrecognized tag */
1517 static void mov_build_index(MOVContext *mov, AVStream *st)
1519 MOVStreamContext *sc = st->priv_data;
1520 offset_t current_offset;
1521 int64_t current_dts = 0;
1527 if (sc->sample_sizes || st->codec->codec_type == CODEC_TYPE_VIDEO) {
1528 int keyframe, sample_size;
1529 int current_sample = 0;
1530 int stts_sample = 0;
1533 st->nb_frames = sc->sample_count;
1534 for (i = 0; i < sc->chunk_count; i++) {
1535 current_offset = sc->chunk_offsets[i];
1536 if (stsc_index + 1 < sc->sample_to_chunk_sz && i + 1 == sc->sample_to_chunk[stsc_index + 1].first)
1538 for (j = 0; j < sc->sample_to_chunk[stsc_index].count; j++) {
1539 keyframe = !sc->keyframe_count || current_sample + 1 == sc->keyframes[stss_index];
1542 if (stss_index + 1 < sc->keyframe_count)
1545 sample_size = sc->sample_size > 0 ? sc->sample_size : sc->sample_sizes[current_sample];
1546 dprintf("AVIndex stream %d, sample %d, offset %llx, dts %lld, size %d, distance %d, keyframe %d\n",
1547 st->index, current_sample, current_offset, current_dts, sample_size, distance, keyframe);
1548 av_add_index_entry(st, current_offset, current_dts, sample_size, distance, keyframe ? AVINDEX_KEYFRAME : 0);
1549 current_offset += sample_size;
1550 assert(sc->stts_data[stts_index].duration % sc->time_rate == 0);
1551 current_dts += sc->stts_data[stts_index].duration / sc->time_rate;
1554 if (current_sample + 1 < sc->sample_count)
1556 if (stts_index + 1 < sc->stts_count && stts_sample == sc->stts_data[stts_index].count) {
1562 } else { /* read whole chunk */
1563 int chunk_samples, chunk_size, chunk_duration;
1565 for (i = 0; i < sc->chunk_count; i++) {
1566 current_offset = sc->chunk_offsets[i];
1567 if (stsc_index + 1 < sc->sample_to_chunk_sz && i + 1 == sc->sample_to_chunk[stsc_index + 1].first)
1569 chunk_samples = sc->sample_to_chunk[stsc_index].count;
1570 /* get chunk size */
1571 if (sc->sample_size > 1 || st->codec->bits_per_sample == 8)
1572 chunk_size = chunk_samples * sc->sample_size;
1573 else if (sc->sample_size_v1.den > 0 && (chunk_samples * sc->sample_size_v1.num % sc->sample_size_v1.den == 0))
1574 chunk_size = chunk_samples * sc->sample_size_v1.num / sc->sample_size_v1.den;
1575 else { /* workaround to find nearest next chunk offset */
1576 chunk_size = INT_MAX;
1577 for (j = 0; j < mov->total_streams; j++) {
1578 MOVStreamContext *msc = mov->streams[j];
1580 for (k = msc->next_chunk; k < msc->chunk_count; k++) {
1581 if (msc->chunk_offsets[k] > current_offset && msc->chunk_offsets[k] - current_offset < chunk_size) {
1582 chunk_size = msc->chunk_offsets[k] - current_offset;
1583 msc->next_chunk = k;
1588 /* check for last chunk */
1589 if (chunk_size == INT_MAX)
1590 for (j = 0; j < mov->mdat_count; j++) {
1591 dprintf("mdat %d, offset %llx, size %lld, current offset %llx\n",
1592 j, mov->mdat_list[j].offset, mov->mdat_list[j].size, current_offset);
1593 if (mov->mdat_list[j].offset <= current_offset && mov->mdat_list[j].offset + mov->mdat_list[j].size > current_offset)
1594 chunk_size = mov->mdat_list[j].offset + mov->mdat_list[j].size - current_offset;
1596 assert(chunk_size != INT_MAX);
1597 for (j = 0; j < mov->total_streams; j++) {
1598 mov->streams[j]->next_chunk = 0;
1601 av_add_index_entry(st, current_offset, current_dts, chunk_size, 0, AVINDEX_KEYFRAME);
1602 /* get chunk duration */
1604 while (chunk_samples > 0) {
1605 if (chunk_samples < sc->stts_data[stts_index].count) {
1606 chunk_duration += sc->stts_data[stts_index].duration * chunk_samples;
1607 sc->stts_data[stts_index].count -= chunk_samples;
1610 chunk_duration += sc->stts_data[stts_index].duration * chunk_samples;
1611 chunk_samples -= sc->stts_data[stts_index].count;
1612 if (stts_index + 1 < sc->stts_count) {
1617 dprintf("AVIndex stream %d, chunk %d, offset %llx, dts %lld, size %d, duration %d\n",
1618 st->index, i, current_offset, current_dts, chunk_size, chunk_duration);
1619 assert(chunk_duration % sc->time_rate == 0);
1620 current_dts += chunk_duration / sc->time_rate;
1623 /* adjust sample count to avindex entries */
1624 sc->sample_count = st->nb_index_entries;
1627 static int mov_read_header(AVFormatContext *s, AVFormatParameters *ap)
1629 MOVContext *mov = (MOVContext *) s->priv_data;
1630 ByteIOContext *pb = &s->pb;
1632 MOV_atom_t atom = { 0, 0, 0 };
1635 mov->parse_table = mov_default_parse_table;
1637 if(!url_is_streamed(pb)) /* .mov and .mp4 aren't streamable anyway (only progressive download if moov is before mdat) */
1638 atom.size = url_fsize(pb);
1640 atom.size = 0x7FFFFFFFFFFFFFFFLL;
1642 /* check MOV header */
1643 err = mov_read_default(mov, pb, atom);
1644 if (err<0 || (!mov->found_moov && !mov->found_mdat)) {
1645 av_log(s, AV_LOG_ERROR, "mov: header not found !!! (err:%d, moov:%d, mdat:%d) pos:%"PRId64"\n",
1646 err, mov->found_moov, mov->found_mdat, url_ftell(pb));
1649 dprintf("on_parse_exit_offset=%d\n", (int) url_ftell(pb));
1651 /* some cleanup : make sure we are on the mdat atom */
1652 if(!url_is_streamed(pb) && (url_ftell(pb) != mov->mdat_offset))
1653 url_fseek(pb, mov->mdat_offset, SEEK_SET);
1655 mov->total_streams = s->nb_streams;
1657 for(i=0; i<mov->total_streams; i++) {
1658 MOVStreamContext *sc = mov->streams[i];
1663 sc->time_scale= mov->time_scale;
1664 av_set_pts_info(s->streams[i], 64, sc->time_rate, sc->time_scale);
1666 if(s->streams[i]->duration != AV_NOPTS_VALUE){
1667 assert(s->streams[i]->duration % sc->time_rate == 0);
1668 s->streams[i]->duration /= sc->time_rate;
1671 mov_build_index(mov, s->streams[i]);
1674 for(i=0; i<mov->total_streams; i++) {
1675 /* dont need those anymore */
1676 av_freep(&mov->streams[i]->chunk_offsets);
1677 av_freep(&mov->streams[i]->sample_to_chunk);
1678 av_freep(&mov->streams[i]->sample_sizes);
1679 av_freep(&mov->streams[i]->keyframes);
1680 av_freep(&mov->streams[i]->stts_data);
1682 av_freep(&mov->mdat_list);
1686 static int mov_read_packet(AVFormatContext *s, AVPacket *pkt)
1688 MOVContext *mov = s->priv_data;
1689 MOVStreamContext *sc = 0;
1690 AVIndexEntry *sample = 0;
1691 int64_t best_dts = INT64_MAX;
1694 for (i = 0; i < mov->total_streams; i++) {
1695 MOVStreamContext *msc = mov->streams[i];
1697 if (s->streams[i]->discard != AVDISCARD_ALL && msc->current_sample < msc->sample_count) {
1698 AVIndexEntry *current_sample = &s->streams[i]->index_entries[msc->current_sample];
1699 int64_t dts = av_rescale(current_sample->timestamp * (int64_t)msc->time_rate, AV_TIME_BASE, msc->time_scale);
1701 dprintf("stream %d, sample %ld, dts %lld\n", i, msc->current_sample, dts);
1702 if (dts < best_dts) {
1703 sample = current_sample;
1711 /* must be done just before reading, to avoid infinite loop on sample */
1712 sc->current_sample++;
1713 if (sample->pos >= url_fsize(&s->pb)) {
1714 av_log(mov->fc, AV_LOG_ERROR, "stream %d, offset 0x%llx: partial file\n", sc->ffindex, sample->pos);
1717 url_fseek(&s->pb, sample->pos, SEEK_SET);
1718 av_get_packet(&s->pb, pkt, sample->size);
1719 pkt->stream_index = sc->ffindex;
1720 pkt->dts = sample->timestamp;
1721 if (sc->ctts_data) {
1722 assert(sc->ctts_data[sc->sample_to_ctime_index].duration % sc->time_rate == 0);
1723 pkt->pts = pkt->dts + sc->ctts_data[sc->sample_to_ctime_index].duration / sc->time_rate;
1724 /* update ctts context */
1725 sc->sample_to_ctime_sample++;
1726 if (sc->sample_to_ctime_index < sc->ctts_count && sc->ctts_data[sc->sample_to_ctime_index].count == sc->sample_to_ctime_sample) {
1727 sc->sample_to_ctime_index++;
1728 sc->sample_to_ctime_sample = 0;
1731 pkt->pts = pkt->dts;
1733 pkt->flags |= sample->flags & AVINDEX_KEYFRAME ? PKT_FLAG_KEY : 0;
1734 pkt->pos = sample->pos;
1735 dprintf("stream %d, pts %lld, dts %lld, pos 0x%llx, duration %d\n", pkt->stream_index, pkt->pts, pkt->dts, pkt->pos, pkt->duration);
1739 static int mov_seek_stream(AVStream *st, int64_t timestamp, int flags)
1741 MOVStreamContext *sc = st->priv_data;
1742 int sample, time_sample;
1745 sample = av_index_search_timestamp(st, timestamp, flags);
1746 dprintf("stream %d, timestamp %lld, sample %d\n", st->index, timestamp, sample);
1747 if (sample < 0) /* not sure what to do */
1749 sc->current_sample = sample;
1750 dprintf("stream %d, found sample %ld\n", st->index, sc->current_sample);
1751 /* adjust ctts index */
1752 if (sc->ctts_data) {
1754 for (i = 0; i < sc->ctts_count; i++) {
1755 time_sample += sc->ctts_data[i].count;
1756 if (time_sample >= sc->current_sample) {
1757 sc->sample_to_ctime_index = i;
1758 sc->sample_to_ctime_sample = time_sample - sc->current_sample;
1766 static int mov_read_seek(AVFormatContext *s, int stream_index, int64_t sample_time, int flags)
1769 int64_t seek_timestamp, timestamp;
1773 if (stream_index >= s->nb_streams)
1776 st = s->streams[stream_index];
1777 sample = mov_seek_stream(st, sample_time, flags);
1781 /* adjust seek timestamp to found sample timestamp */
1782 seek_timestamp = st->index_entries[sample].timestamp;
1784 for (i = 0; i < s->nb_streams; i++) {
1786 if (stream_index == i || st->discard == AVDISCARD_ALL)
1789 timestamp = av_rescale_q(seek_timestamp, s->streams[stream_index]->time_base, st->time_base);
1790 mov_seek_stream(st, timestamp, flags);
1795 static int mov_read_close(AVFormatContext *s)
1798 MOVContext *mov = (MOVContext *) s->priv_data;
1799 for(i=0; i<mov->total_streams; i++)
1800 mov_free_stream_context(mov->streams[i]);
1801 /* free color tabs */
1802 for(i=0; i<mov->ctab_size; i++)
1803 av_freep(&mov->ctab[i]);
1804 av_freep(&mov->ctab);
1808 AVInputFormat mov_demuxer = {
1809 "mov,mp4,m4a,3gp,3g2,mj2",
1810 "QuickTime/MPEG4/Motion JPEG 2000 format",