3 * Copyright (c) 2001 Fabrice Bellard.
5 * This file is part of FFmpeg.
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
36 * First version by Francois Revol revol@free.fr
37 * Seek function by Gael Chardon gael.dev@4now.net
39 * Features and limitations:
40 * - reads most of the QT files I have (at least the structure),
41 * the exceptions are .mov with zlib compressed headers ('cmov' section). It shouldn't be hard to implement.
42 * FIXED, Francois Revol, 07/17/2002
43 * - ffmpeg has nearly none of the usual QuickTime codecs,
44 * although I succesfully dumped raw and mp3 audio tracks off .mov files.
45 * Sample QuickTime files with mp3 audio can be found at: http://www.3ivx.com/showcase.html
46 * - .mp4 parsing is still hazardous, although the format really is QuickTime with some minor changes
47 * (to make .mov parser crash maybe ?), despite what they say in the MPEG FAQ at
48 * http://mpeg.telecomitalialab.com/faq.htm
49 * - the code is quite ugly... maybe I won't do it recursive next time :-)
50 * - seek is not supported with files that contain edit list
52 * Funny I didn't know about http://sourceforge.net/projects/qt-ffmpeg/
53 * when coding this :) (it's a writer anyway)
55 * Reference documents:
56 * http://www.geocities.com/xhelmboyx/quicktime/formats/qtm-layout.txt
58 * http://developer.apple.com/documentation/QuickTime/QTFF/
59 * http://developer.apple.com/documentation/QuickTime/QTFF/qtff.pdf
60 * QuickTime is a trademark of Apple (AFAIK :))
63 #include "qtpalette.h"
69 static const AVCodecTag mov_video_tags[] = {
70 /* { CODEC_ID_, MKTAG('c', 'v', 'i', 'd') }, *//* Cinepak */
71 { CODEC_ID_RAWVIDEO, MKTAG('r', 'a', 'w', ' ') }, /* Uncompressed RGB */
72 /* { CODEC_ID_H263, MKTAG('Y', 'u', 'v', '2') }, *//* Uncompressed YUV422 */
73 /* { CODEC_ID_RAWVIDEO, MKTAG('A', 'V', 'U', 'I') }, *//* YUV with alpha-channel (AVID Uncompressed) */
78 { CODEC_ID_MJPEG, MKTAG('j', 'p', 'e', 'g') }, /* PhotoJPEG */
79 { CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'e', 'g') }, /* MPEG */
80 { CODEC_ID_MJPEG, MKTAG('m', 'j', 'p', 'a') }, /* Motion-JPEG (format A) */
81 { CODEC_ID_MJPEGB, MKTAG('m', 'j', 'p', 'b') }, /* Motion-JPEG (format B) */
82 { CODEC_ID_MJPEG, MKTAG('A', 'V', 'D', 'J') }, /* MJPEG with alpha-channel (AVID JFIF meridien compressed) */
83 /* { CODEC_ID_MJPEG, MKTAG('A', 'V', 'R', 'n') }, *//* MJPEG with alpha-channel (AVID ABVB/Truevision NuVista) */
84 { CODEC_ID_GIF, MKTAG('g', 'i', 'f', ' ') }, /* embedded gif files as frames (usually one "click to play movie" frame) */
86 { CODEC_ID_SVQ1, MKTAG('S', 'V', 'Q', '1') }, /* Sorenson Video v1 */
87 { CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', '1') }, /* Sorenson Video v1 */
88 { CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', 'i') }, /* Sorenson Video v1 (from QT specs)*/
89 { CODEC_ID_SVQ3, MKTAG('S', 'V', 'Q', '3') }, /* Sorenson Video v3 */
90 { CODEC_ID_MPEG4, MKTAG('m', 'p', '4', 'v') },
91 { CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', 'X') }, /* OpenDiVX *//* sample files at http://heroinewarrior.com/xmovie.php3 use this tag */
92 { CODEC_ID_MPEG4, MKTAG('X', 'V', 'I', 'D') },
93 { CODEC_ID_MPEG4, MKTAG('3', 'I', 'V', '2') }, /* experimental: 3IVX files before ivx D4 4.5.1 */
94 /* { CODEC_ID_, MKTAG('I', 'V', '5', '0') }, *//* Indeo 5.0 */
95 { CODEC_ID_H263, MKTAG('h', '2', '6', '3') }, /* H263 */
96 { CODEC_ID_H263, MKTAG('s', '2', '6', '3') }, /* H263 ?? works */
97 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', ' ') }, /* DV NTSC */
98 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', 'p') }, /* DV PAL */
99 { CODEC_ID_VP3, MKTAG('V', 'P', '3', '1') }, /* On2 VP3 */
100 { CODEC_ID_RPZA, MKTAG('r', 'p', 'z', 'a') }, /* Apple Video (RPZA) */
101 { CODEC_ID_CINEPAK, MKTAG('c', 'v', 'i', 'd') }, /* Cinepak */
102 { CODEC_ID_8BPS, MKTAG('8', 'B', 'P', 'S') }, /* Planar RGB (8BPS) */
103 { CODEC_ID_SMC, MKTAG('s', 'm', 'c', ' ') }, /* Apple Graphics (SMC) */
104 { CODEC_ID_QTRLE, MKTAG('r', 'l', 'e', ' ') }, /* Apple Animation (RLE) */
105 { CODEC_ID_MSRLE, MKTAG('W', 'R', 'L', 'E') },
106 { CODEC_ID_QDRAW, MKTAG('q', 'd', 'r', 'w') }, /* QuickDraw */
107 { CODEC_ID_H264, MKTAG('a', 'v', 'c', '1') }, /* AVC-1/H.264 */
108 { CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '2') }, /* MPEG2 produced by Sony HD camera */
109 { CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '3') }, /* HDV produced by FCP */
110 { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '5', 'n') }, /* MPEG2 IMX NTSC 525/60 50mb/s produced by FCP */
111 { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '5', 'p') }, /* MPEG2 IMX PAL 625/50 50mb/s produced by FCP */
112 { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '3', 'n') }, /* MPEG2 IMX NTSC 525/60 30mb/s produced by FCP */
113 { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '3', 'p') }, /* MPEG2 IMX PAL 625/50 30mb/s produced by FCP */
114 { CODEC_ID_MPEG2VIDEO, MKTAG('A', 'V', 'm', 'p') }, /* AVID IMX PAL */
115 { CODEC_ID_MPEG2VIDEO, MKTAG('A', 'V', 'm', 'n') }, /* AVID IMX NTSC */
116 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'p', 'p') }, /* DVCPRO PAL produced by FCP */
117 //{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '5') }, /* DVCPRO HD 50i produced by FCP */
118 //{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '6') }, /* DVCPRO HD 60i produced by FCP */
119 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', '5', 'p') }, /* DVCPRO50 PAL produced by FCP */
120 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', '5', 'n') }, /* DVCPRO50 NTSC produced by FCP */
121 { CODEC_ID_DVVIDEO, MKTAG('A', 'V', 'd', 'v') }, /* AVID DV */
122 //{ CODEC_ID_JPEG2000, MKTAG('m', 'j', 'p', '2') }, /* JPEG 2000 produced by FCP */
123 { CODEC_ID_TARGA, MKTAG('t', 'g', 'a', ' ') }, /* Truevision Targa */
124 { CODEC_ID_TIFF, MKTAG('t', 'i', 'f', 'f') }, /* TIFF embedded in MOV */
125 { CODEC_ID_RAWVIDEO, MKTAG('2', 'v', 'u', 'y') }, /* UNCOMPRESSED 8BIT 4:2:2 */
126 { CODEC_ID_VC1, MKTAG('v', 'c', '-', '1') }, /* SMPTE RP 2025 */
127 { CODEC_ID_WMV3, MKTAG('v', 'c', '-', '1') }, /* SMPTE RP 2025 */
128 { CODEC_ID_PNG, MKTAG('p', 'n', 'g', ' ') },
129 { CODEC_ID_NONE, 0 },
132 static const AVCodecTag mov_audio_tags[] = {
133 { CODEC_ID_PCM_S32BE, MKTAG('i', 'n', '3', '2') },
134 { CODEC_ID_PCM_S24BE, MKTAG('i', 'n', '2', '4') },
135 { CODEC_ID_PCM_S16BE, MKTAG('N', 'O', 'N', 'E') }, /* uncompressed */
136 { CODEC_ID_PCM_S16BE, MKTAG('t', 'w', 'o', 's') }, /* 16 bits */
137 { CODEC_ID_PCM_U8, MKTAG('r', 'a', 'w', ' ') }, /* 8 bits unsigned */
138 { CODEC_ID_PCM_S16LE, MKTAG('s', 'o', 'w', 't') }, /* */
139 { CODEC_ID_PCM_MULAW, MKTAG('u', 'l', 'a', 'w') }, /* */
140 { CODEC_ID_PCM_ALAW, MKTAG('a', 'l', 'a', 'w') }, /* */
141 { CODEC_ID_ADPCM_IMA_QT, MKTAG('i', 'm', 'a', '4') }, /* IMA-4 ADPCM */
142 { CODEC_ID_ADPCM_MS, MKTAG('m', 's', 0x00, 0x02) }, /* MS ADPCM */
143 { CODEC_ID_MACE3, MKTAG('M', 'A', 'C', '3') }, /* Macintosh Audio Compression and Expansion 3:1 */
144 { CODEC_ID_MACE6, MKTAG('M', 'A', 'C', '6') }, /* Macintosh Audio Compression and Expansion 6:1 */
146 { CODEC_ID_MP3, MKTAG('.', 'm', 'p', '3') }, /* MPEG layer 3 */ /* sample files at http://www.3ivx.com/showcase.html use this tag */
147 { CODEC_ID_MP2, 0x6D730055 }, /* MPEG layer 3 */
148 { CODEC_ID_MP2, 0x5500736D }, /* MPEG layer 3 *//* XXX: check endianness */
149 /* { CODEC_ID_OGG_VORBIS, MKTAG('O', 'g', 'g', 'S') }, *//* sample files at http://heroinewarrior.com/xmovie.php3 use this tag */
151 { CODEC_ID_AAC, MKTAG('m', 'p', '4', 'a') }, /* MPEG-4 AAC */
152 /* The standard for mpeg4 audio is still not normalised AFAIK anyway */
153 { CODEC_ID_AMR_NB, MKTAG('s', 'a', 'm', 'r') }, /* AMR-NB 3gp */
154 { CODEC_ID_AMR_WB, MKTAG('s', 'a', 'w', 'b') }, /* AMR-WB 3gp */
155 { CODEC_ID_AC3, MKTAG('m', 's', 0x20, 0x00) }, /* Dolby AC-3 */
156 { CODEC_ID_ALAC,MKTAG('a', 'l', 'a', 'c') }, /* Apple Lossless */
157 { CODEC_ID_QDM2,MKTAG('Q', 'D', 'M', '2') }, /* QDM2 */
158 { CODEC_ID_DVAUDIO, MKTAG('v', 'd', 'v', 'a') },
159 { CODEC_ID_DVAUDIO, MKTAG('d', 'v', 'c', 'a') },
160 { CODEC_ID_PCM_S16LE, MKTAG('l', 'p', 'c', 'm') },
161 { CODEC_ID_NONE, 0 },
164 /* the QuickTime file format is quite convoluted...
165 * it has lots of index tables, each indexing something in another one...
166 * Here we just use what is needed to read the chunks
169 typedef struct MOV_sample_to_chunk_tbl {
173 } MOV_sample_to_chunk_tbl;
178 int64_t size; /* total size (excluding the size and type fields) */
188 typedef struct MOV_mdat_atom_s {
195 uint32_t flags; // 24bit
197 /* 0x03 ESDescrTag */
199 #define MP4ODescrTag 0x01
200 #define MP4IODescrTag 0x02
201 #define MP4ESDescrTag 0x03
202 #define MP4DecConfigDescrTag 0x04
203 #define MP4DecSpecificDescrTag 0x05
204 #define MP4SLConfigDescrTag 0x06
205 #define MP4ContentIdDescrTag 0x07
206 #define MP4SupplContentIdDescrTag 0x08
207 #define MP4IPIPtrDescrTag 0x09
208 #define MP4IPMPPtrDescrTag 0x0A
209 #define MP4IPMPDescrTag 0x0B
210 #define MP4RegistrationDescrTag 0x0D
211 #define MP4ESIDIncDescrTag 0x0E
212 #define MP4ESIDRefDescrTag 0x0F
213 #define MP4FileIODescrTag 0x10
214 #define MP4FileODescrTag 0x11
215 #define MP4ExtProfileLevelDescrTag 0x13
216 #define MP4ExtDescrTagsStart 0x80
217 #define MP4ExtDescrTagsEnd 0xFE
218 uint8_t stream_priority;
220 /* 0x04 DecConfigDescrTag */
221 uint8_t object_type_id;
223 /* XXX: really streamType is
224 * only 6bit, followed by:
228 uint32_t buffer_size_db; // 24
229 uint32_t max_bitrate;
230 uint32_t avg_bitrate;
232 /* 0x05 DecSpecificDescrTag */
233 uint8_t decoder_cfg_len;
234 uint8_t *decoder_cfg;
236 /* 0x06 SLConfigDescrTag */
237 uint8_t sl_config_len;
241 struct MOVParseTableEntry;
243 typedef struct MOVStreamContext {
244 int ffindex; /* the ffmpeg stream id */
246 unsigned int chunk_count;
247 int64_t *chunk_offsets;
248 unsigned int stts_count;
249 Time2Sample *stts_data;
250 unsigned int ctts_count;
251 Time2Sample *ctts_data;
252 unsigned int edit_count; /* number of 'edit' (elst atom) */
253 unsigned int sample_to_chunk_sz;
254 MOV_sample_to_chunk_tbl *sample_to_chunk;
255 int sample_to_ctime_index;
256 int sample_to_ctime_sample;
257 unsigned int sample_size;
258 unsigned int sample_count;
260 unsigned int keyframe_count;
266 AVRational sample_size_v1;
267 int dv_audio_container;
270 typedef struct MOVContext {
273 int64_t duration; /* duration of the longest track */
274 int found_moov; /* when both 'moov' and 'mdat' sections has been found */
275 int found_mdat; /* we suppose we have enough data to read the file */
278 MOVStreamContext *streams[MAX_STREAMS];
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;
286 MOV_mdat_atom_t *mdat_list;
288 DVDemuxContext *dv_demux;
289 AVFormatContext *dv_fctx;
290 int isom; /* 1 if file is ISO Media (mp4/3gp) */
294 /* XXX: it's the first time I make a recursive parser I think... sorry if it's ugly :P */
296 /* those functions parse an atom */
298 1: found what I wanted, exit
299 0: continue to parse next atom
300 -1: error occured, exit
302 typedef int (*mov_parse_function)(MOVContext *ctx, ByteIOContext *pb, MOV_atom_t atom);
304 /* links atom IDs to parse functions */
305 typedef struct MOVParseTableEntry {
307 mov_parse_function func;
308 } MOVParseTableEntry;
310 static int mov_read_default(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
312 int64_t total_size = 0;
317 a.offset = atom.offset;
320 atom.size = 0x7fffffffffffffffLL;
321 while(((total_size + 8) < atom.size) && !url_feof(pb) && !err) {
325 a.size = get_be32(pb);
326 a.type = get_le32(pb);
330 dprintf("type: %08x %.4s sz: %"PRIx64" %"PRIx64" %"PRIx64"\n", a.type, (char*)&a.type, a.size, atom.size, total_size);
331 if (a.size == 1) { /* 64 bit extended size */
332 a.size = get_be64(pb) - 8;
337 a.size = atom.size - total_size;
341 for (i = 0; c->parse_table[i].type != 0L
342 && c->parse_table[i].type != a.type; i++)
350 if (c->parse_table[i].type == 0) { /* skip leaf atoms data */
351 url_fskip(pb, a.size);
353 offset_t start_pos = url_ftell(pb);
355 err = (c->parse_table[i].func)(c, pb, a);
356 left = a.size - url_ftell(pb) + start_pos;
357 if (left > 0) /* skip garbage at atom end */
362 total_size += a.size;
365 if (!err && total_size < atom.size && atom.size < 0x7ffff) {
366 url_fskip(pb, atom.size - total_size);
372 static int mov_read_ctab(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
375 url_fskip(pb, atom.size); // for now
377 VERY VERY BROKEN, NEVER execute this, needs rewrite
380 c->ctab = av_realloc(c->ctab, ++c->ctab_size);
381 t = c->ctab[c->ctab_size];
382 t->seed = get_be32(pb);
383 t->flags = get_be16(pb);
384 t->size = get_be16(pb) + 1;
385 len = 2 * t->size * 4;
387 t->clrs = av_malloc(len); // 16bit A R G B
389 get_buffer(pb, t->clrs, len);
396 static int mov_read_hdlr(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
398 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
402 get_byte(pb); /* version */
403 get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
406 ctype = get_le32(pb);
407 type = get_le32(pb); /* component subtype */
409 dprintf("ctype= %c%c%c%c (0x%08lx)\n", *((char *)&ctype), ((char *)&ctype)[1], ((char *)&ctype)[2], ((char *)&ctype)[3], (long) ctype);
410 dprintf("stype= %c%c%c%c\n", *((char *)&type), ((char *)&type)[1], ((char *)&type)[2], ((char *)&type)[3]);
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 else if(type == MKTAG('m', '1', 'a', ' '))
418 st->codec->codec_id = CODEC_ID_MP2;
419 else if(type == MKTAG('s', 'u', 'b', 'p')) {
420 st->codec->codec_type = CODEC_TYPE_SUBTITLE;
421 st->codec->codec_id = CODEC_ID_DVD_SUBTITLE;
423 get_be32(pb); /* component manufacture */
424 get_be32(pb); /* component flags */
425 get_be32(pb); /* component flags mask */
428 return 0; /* nothing left to read */
430 url_fskip(pb, atom.size - (url_ftell(pb) - atom.offset));
434 static int mov_mp4_read_descr_len(ByteIOContext *pb)
439 int c = get_byte(pb);
440 len = (len << 7) | (c & 0x7f);
447 static int mov_mp4_read_descr(ByteIOContext *pb, int *tag)
451 len = mov_mp4_read_descr_len(pb);
452 dprintf("MPEG4 description: tag=0x%02x len=%d\n", *tag, len);
456 static int mov_read_esds(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
458 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
459 MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
462 /* Well, broken but suffisant for some MP4 streams */
463 get_be32(pb); /* version + flags */
464 len = mov_mp4_read_descr(pb, &tag);
465 if (tag == MP4ESDescrTag) {
466 get_be16(pb); /* ID */
467 get_byte(pb); /* priority */
469 get_be16(pb); /* ID */
471 len = mov_mp4_read_descr(pb, &tag);
472 if (tag == MP4DecConfigDescrTag) {
473 sc->esds.object_type_id = get_byte(pb);
474 sc->esds.stream_type = get_byte(pb);
475 sc->esds.buffer_size_db = get_be24(pb);
476 sc->esds.max_bitrate = get_be32(pb);
477 sc->esds.avg_bitrate = get_be32(pb);
479 st->codec->codec_id= codec_get_id(ff_mov_obj_type, sc->esds.object_type_id);
480 dprintf("esds object type id %d\n", sc->esds.object_type_id);
481 len = mov_mp4_read_descr(pb, &tag);
482 if (tag == MP4DecSpecificDescrTag) {
483 dprintf("Specific MPEG4 header len=%d\n", len);
484 st->codec->extradata = av_mallocz(len + FF_INPUT_BUFFER_PADDING_SIZE);
485 if (st->codec->extradata) {
486 get_buffer(pb, st->codec->extradata, len);
487 st->codec->extradata_size = len;
489 if ((*st->codec->extradata >> 3) == 29) {
490 st->codec->codec_id = CODEC_ID_MP3ON4;
498 /* this atom contains actual media data */
499 static int mov_read_mdat(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
501 if(atom.size == 0) /* wrong one (MP4) */
503 c->mdat_list = av_realloc(c->mdat_list, (c->mdat_count + 1) * sizeof(*c->mdat_list));
504 c->mdat_list[c->mdat_count].offset = atom.offset;
505 c->mdat_list[c->mdat_count].size = atom.size;
508 c->mdat_offset = atom.offset;
510 return 1; /* found both, just go */
511 url_fskip(pb, atom.size);
512 return 0; /* now go for moov */
515 static int mov_read_ftyp(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
517 uint32_t type = get_le32(pb);
519 if (type != MKTAG('q','t',' ',' '))
521 av_log(c->fc, AV_LOG_DEBUG, "ISO: File Type Major Brand: %.4s\n",(char *)&type);
522 get_be32(pb); /* minor version */
523 url_fskip(pb, atom.size - 8);
527 /* this atom should contain all header atoms */
528 static int mov_read_moov(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
532 err = mov_read_default(c, pb, atom);
533 /* we parsed the 'moov' atom, we can terminate the parsing as soon as we find the 'mdat' */
534 /* so we don't parse the whole file if over a network */
537 return 1; /* found both, just go */
538 return 0; /* now go for mdat */
542 static int mov_read_mdhd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
544 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
545 MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
546 int version = get_byte(pb);
550 return 1; /* unsupported */
552 get_byte(pb); get_byte(pb);
553 get_byte(pb); /* flags */
559 get_be32(pb); /* creation time */
560 get_be32(pb); /* modification time */
563 sc->time_scale = get_be32(pb);
564 st->duration = (version == 1) ? get_be64(pb) : get_be32(pb); /* duration */
566 lang = get_be16(pb); /* language */
567 ff_mov_lang_to_iso639(lang, st->language);
568 get_be16(pb); /* quality */
573 static int mov_read_mvhd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
575 int version = get_byte(pb); /* version */
576 get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
582 get_be32(pb); /* creation time */
583 get_be32(pb); /* modification time */
585 c->time_scale = get_be32(pb); /* time scale */
587 av_log(NULL, AV_LOG_DEBUG, "time scale = %i\n", c->time_scale);
589 c->duration = (version == 1) ? get_be64(pb) : get_be32(pb); /* duration */
590 get_be32(pb); /* preferred scale */
592 get_be16(pb); /* preferred volume */
594 url_fskip(pb, 10); /* reserved */
596 url_fskip(pb, 36); /* display matrix */
598 get_be32(pb); /* preview time */
599 get_be32(pb); /* preview duration */
600 get_be32(pb); /* poster time */
601 get_be32(pb); /* selection time */
602 get_be32(pb); /* selection duration */
603 get_be32(pb); /* current time */
604 get_be32(pb); /* next track ID */
609 static int mov_read_smi(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
611 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
613 if((uint64_t)atom.size > (1<<30))
616 // currently SVQ3 decoder expect full STSD header - so let's fake it
617 // this should be fixed and just SMI header should be passed
618 av_free(st->codec->extradata);
619 st->codec->extradata_size = 0x5a + atom.size;
620 st->codec->extradata = av_mallocz(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
622 if (st->codec->extradata) {
623 memcpy(st->codec->extradata, "SVQ3", 4); // fake
624 get_buffer(pb, st->codec->extradata + 0x5a, atom.size);
625 dprintf("Reading SMI %"PRId64" %s\n", atom.size, st->codec->extradata + 0x5a);
627 url_fskip(pb, atom.size);
632 static int mov_read_enda(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
634 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
635 int little_endian = get_be16(pb);
638 switch (st->codec->codec_id) {
639 case CODEC_ID_PCM_S24BE:
640 st->codec->codec_id = CODEC_ID_PCM_S24LE;
642 case CODEC_ID_PCM_S32BE:
643 st->codec->codec_id = CODEC_ID_PCM_S32LE;
652 /* FIXME modify qdm2/svq3/h264 decoders to take full atom as extradata */
653 static int mov_read_extradata(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
655 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
656 if((uint64_t)atom.size > (1<<30))
658 av_free(st->codec->extradata);
659 st->codec->extradata_size = atom.size + 8;
660 st->codec->extradata = av_mallocz(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
661 if (st->codec->extradata) {
662 AV_WL32(st->codec->extradata + 4, atom.type);
663 get_buffer(pb, st->codec->extradata + 8, atom.size);
665 url_fskip(pb, atom.size);
669 static int mov_read_wave(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
671 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
673 if((uint64_t)atom.size > (1<<30))
676 if (st->codec->codec_id == CODEC_ID_QDM2) {
677 // pass all frma atom to codec, needed at least for QDM2
678 av_free(st->codec->extradata);
679 st->codec->extradata_size = atom.size;
680 st->codec->extradata = av_mallocz(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
682 if (st->codec->extradata) {
683 get_buffer(pb, st->codec->extradata, atom.size);
685 url_fskip(pb, atom.size);
686 } else if (atom.size > 8) { /* to read frma, esds atoms */
687 mov_read_default(c, pb, atom);
689 url_fskip(pb, atom.size);
693 static int mov_read_avcC(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
695 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
697 if((uint64_t)atom.size > (1<<30))
700 av_free(st->codec->extradata);
702 st->codec->extradata_size = atom.size;
703 st->codec->extradata = av_mallocz(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
705 if (st->codec->extradata) {
706 get_buffer(pb, st->codec->extradata, atom.size);
708 url_fskip(pb, atom.size);
713 static int mov_read_stco(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
715 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
716 MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
717 unsigned int i, entries;
719 get_byte(pb); /* version */
720 get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
722 entries = get_be32(pb);
724 if(entries >= UINT_MAX/sizeof(int64_t))
727 sc->chunk_count = entries;
728 sc->chunk_offsets = av_malloc(entries * sizeof(int64_t));
729 if (!sc->chunk_offsets)
731 if (atom.type == MKTAG('s', 't', 'c', 'o')) {
732 for(i=0; i<entries; i++) {
733 sc->chunk_offsets[i] = get_be32(pb);
735 } else if (atom.type == MKTAG('c', 'o', '6', '4')) {
736 for(i=0; i<entries; i++) {
737 sc->chunk_offsets[i] = get_be64(pb);
745 static int mov_read_stsd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
747 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
748 MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
749 int entries, frames_per_sample;
751 uint8_t codec_name[32];
753 /* for palette traversal */
761 unsigned char *color_table;
763 unsigned char r, g, b;
765 get_byte(pb); /* version */
766 get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
768 entries = get_be32(pb);
770 while(entries--) { //Parsing Sample description table
772 MOV_atom_t a = { 0, 0, 0 };
773 offset_t start_pos = url_ftell(pb);
774 int size = get_be32(pb); /* size */
775 format = get_le32(pb); /* data format */
777 get_be32(pb); /* reserved */
778 get_be16(pb); /* reserved */
779 get_be16(pb); /* index */
781 if (st->codec->codec_tag) {
782 /* multiple fourcc, just skip for now */
783 url_fskip(pb, size - (url_ftell(pb) - start_pos));
787 st->codec->codec_tag = format;
788 id = codec_get_id(mov_audio_tags, format);
789 if (st->codec->codec_type != CODEC_TYPE_VIDEO && id > 0) {
790 st->codec->codec_type = CODEC_TYPE_AUDIO;
791 } else if (st->codec->codec_type != CODEC_TYPE_AUDIO && /* do not overwrite codec type */
792 format && format != MKTAG('m', 'p', '4', 's')) { /* skip old asf mpeg4 tag */
793 id = codec_get_id(mov_video_tags, format);
795 id = codec_get_id(codec_bmp_tags, format);
797 st->codec->codec_type = CODEC_TYPE_VIDEO;
800 dprintf("size=%d 4CC= %c%c%c%c codec_type=%d\n",
802 (format >> 0) & 0xff, (format >> 8) & 0xff, (format >> 16) & 0xff, (format >> 24) & 0xff,
803 st->codec->codec_type);
805 if(st->codec->codec_type==CODEC_TYPE_VIDEO) {
806 st->codec->codec_id = id;
807 get_be16(pb); /* version */
808 get_be16(pb); /* revision level */
809 get_be32(pb); /* vendor */
810 get_be32(pb); /* temporal quality */
811 get_be32(pb); /* spacial quality */
813 st->codec->width = get_be16(pb); /* width */
814 st->codec->height = get_be16(pb); /* height */
816 get_be32(pb); /* horiz resolution */
817 get_be32(pb); /* vert resolution */
818 get_be32(pb); /* data size, always 0 */
819 frames_per_sample = get_be16(pb); /* frames per samples */
821 av_log(NULL, AV_LOG_DEBUG, "frames/samples = %d\n", frames_per_sample);
823 get_buffer(pb, codec_name, 32); /* codec name, pascal string (FIXME: true for mp4?) */
824 if (codec_name[0] <= 31) {
825 memcpy(st->codec->codec_name, &codec_name[1],codec_name[0]);
826 st->codec->codec_name[codec_name[0]] = 0;
829 st->codec->bits_per_sample = get_be16(pb); /* depth */
830 st->codec->color_table_id = get_be16(pb); /* colortable id */
832 /* figure out the palette situation */
833 color_depth = st->codec->bits_per_sample & 0x1F;
834 color_greyscale = st->codec->bits_per_sample & 0x20;
836 /* if the depth is 2, 4, or 8 bpp, file is palettized */
837 if ((color_depth == 2) || (color_depth == 4) ||
838 (color_depth == 8)) {
840 if (color_greyscale) {
842 /* compute the greyscale palette */
843 color_count = 1 << color_depth;
845 color_dec = 256 / (color_count - 1);
846 for (j = 0; j < color_count; j++) {
847 r = g = b = color_index;
848 c->palette_control.palette[j] =
849 (r << 16) | (g << 8) | (b);
850 color_index -= color_dec;
855 } else if (st->codec->color_table_id & 0x08) {
857 /* if flag bit 3 is set, use the default palette */
858 color_count = 1 << color_depth;
859 if (color_depth == 2)
860 color_table = ff_qt_default_palette_4;
861 else if (color_depth == 4)
862 color_table = ff_qt_default_palette_16;
864 color_table = ff_qt_default_palette_256;
866 for (j = 0; j < color_count; j++) {
867 r = color_table[j * 4 + 0];
868 g = color_table[j * 4 + 1];
869 b = color_table[j * 4 + 2];
870 c->palette_control.palette[j] =
871 (r << 16) | (g << 8) | (b);
876 /* load the palette from the file */
877 color_start = get_be32(pb);
878 color_count = get_be16(pb);
879 color_end = get_be16(pb);
880 for (j = color_start; j <= color_end; j++) {
881 /* each R, G, or B component is 16 bits;
882 * only use the top 8 bits; skip alpha bytes
892 c->palette_control.palette[j] =
893 (r << 16) | (g << 8) | (b);
897 st->codec->palctrl = &c->palette_control;
898 st->codec->palctrl->palette_changed = 1;
900 st->codec->palctrl = NULL;
901 } else if(st->codec->codec_type==CODEC_TYPE_AUDIO) {
903 uint16_t version = get_be16(pb);
905 st->codec->codec_id = id;
906 get_be16(pb); /* revision level */
907 get_be32(pb); /* vendor */
909 st->codec->channels = get_be16(pb); /* channel count */
910 dprintf("audio channels %d\n", st->codec->channels);
911 st->codec->bits_per_sample = get_be16(pb); /* sample size */
912 /* do we need to force to 16 for AMR ? */
914 /* handle specific s8 codec */
915 get_be16(pb); /* compression id = 0*/
916 get_be16(pb); /* packet size = 0 */
918 st->codec->sample_rate = ((get_be32(pb) >> 16));
920 switch (st->codec->codec_id) {
921 case CODEC_ID_PCM_S8:
922 case CODEC_ID_PCM_U8:
923 if (st->codec->bits_per_sample == 16)
924 st->codec->codec_id = CODEC_ID_PCM_S16BE;
926 case CODEC_ID_PCM_S16LE:
927 case CODEC_ID_PCM_S16BE:
928 if (st->codec->bits_per_sample == 8)
929 st->codec->codec_id = CODEC_ID_PCM_S8;
930 else if (st->codec->bits_per_sample == 24)
931 st->codec->codec_id = CODEC_ID_PCM_S24BE;
937 //Read QT version 1 fields. In version 0 theese dont exist
938 dprintf("version =%d, isom =%d\n",version,c->isom);
941 sc->sample_size_v1.den = get_be32(pb); /* samples per packet */
942 get_be32(pb); /* bytes per packet */
943 sc->sample_size_v1.num = get_be32(pb); /* bytes per frame */
944 get_be32(pb); /* bytes per sample */
945 } else if(version==2) {
946 get_be32(pb); /* sizeof struct only */
947 st->codec->sample_rate = av_int2dbl(get_be64(pb)); /* float 64 */
948 st->codec->channels = get_be32(pb);
949 get_be32(pb); /* always 0x7F000000 */
950 get_be32(pb); /* bits per channel if sound is uncompressed */
951 get_be32(pb); /* lcpm format specific flag */
952 get_be32(pb); /* bytes per audio packet if constant */
953 get_be32(pb); /* lpcm frames per audio packet if constant */
957 bits_per_sample = av_get_bits_per_sample(st->codec->codec_id);
958 if (bits_per_sample) {
959 st->codec->bits_per_sample = bits_per_sample;
960 sc->sample_size = (bits_per_sample >> 3) * st->codec->channels;
963 /* other codec type, just skip (rtp, mp4s, tmcd ...) */
964 url_fskip(pb, size - (url_ftell(pb) - start_pos));
966 /* this will read extra atoms at the end (wave, alac, damr, avcC, SMI ...) */
967 a.size = size - (url_ftell(pb) - start_pos);
969 mov_read_default(c, pb, a);
971 url_fskip(pb, a.size);
974 if(st->codec->codec_type==CODEC_TYPE_AUDIO && st->codec->sample_rate==0 && sc->time_scale>1) {
975 st->codec->sample_rate= sc->time_scale;
978 /* special codec parameters handling */
979 switch (st->codec->codec_id) {
980 #ifdef CONFIG_H261_DECODER
983 #ifdef CONFIG_H263_DECODER
986 #ifdef CONFIG_MPEG4_DECODER
989 st->codec->width= 0; /* let decoder init width/height */
990 st->codec->height= 0;
992 #ifdef CONFIG_LIBFAAD
995 #ifdef CONFIG_VORBIS_DECODER
996 case CODEC_ID_VORBIS:
998 case CODEC_ID_MP3ON4:
999 st->codec->sample_rate= 0; /* let decoder init parameters properly */
1001 #ifdef CONFIG_DV_DEMUXER
1002 case CODEC_ID_DVAUDIO:
1003 c->dv_fctx = av_alloc_format_context();
1004 c->dv_demux = dv_init_demux(c->dv_fctx);
1006 av_log(c->fc, AV_LOG_ERROR, "dv demux context init error\n");
1009 sc->dv_audio_container = 1;
1010 st->codec->codec_id = CODEC_ID_PCM_S16LE;
1013 /* no ifdef since parameters are always those */
1014 case CODEC_ID_AMR_WB:
1015 st->codec->sample_rate= 16000;
1016 st->codec->channels= 1; /* really needed */
1018 case CODEC_ID_AMR_NB:
1019 st->codec->sample_rate= 8000;
1020 st->codec->channels= 1; /* really needed */
1023 st->codec->codec_type = CODEC_TYPE_AUDIO; /* force type after stsd for m1a hdlr */
1024 st->need_parsing = 1;
1033 static int mov_read_stsc(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1035 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
1036 MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
1037 unsigned int i, entries;
1039 get_byte(pb); /* version */
1040 get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
1042 entries = get_be32(pb);
1044 if(entries >= UINT_MAX / sizeof(MOV_sample_to_chunk_tbl))
1048 av_log(NULL, AV_LOG_DEBUG, "track[%i].stsc.entries = %i\n", c->fc->nb_streams-1, entries);
1050 sc->sample_to_chunk_sz = entries;
1051 sc->sample_to_chunk = av_malloc(entries * sizeof(MOV_sample_to_chunk_tbl));
1052 if (!sc->sample_to_chunk)
1054 for(i=0; i<entries; i++) {
1055 sc->sample_to_chunk[i].first = get_be32(pb);
1056 sc->sample_to_chunk[i].count = get_be32(pb);
1057 sc->sample_to_chunk[i].id = get_be32(pb);
1062 static int mov_read_stss(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1064 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
1065 MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
1066 unsigned int i, entries;
1068 get_byte(pb); /* version */
1069 get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
1071 entries = get_be32(pb);
1073 if(entries >= UINT_MAX / sizeof(long))
1076 sc->keyframe_count = entries;
1078 av_log(NULL, AV_LOG_DEBUG, "keyframe_count = %d\n", sc->keyframe_count);
1080 sc->keyframes = av_malloc(entries * sizeof(long));
1083 for(i=0; i<entries; i++) {
1084 sc->keyframes[i] = get_be32(pb);
1086 /* av_log(NULL, AV_LOG_DEBUG, "keyframes[]=%ld\n", sc->keyframes[i]); */
1092 static int mov_read_stsz(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1094 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
1095 MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
1096 unsigned int i, entries, sample_size;
1098 get_byte(pb); /* version */
1099 get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
1101 sample_size = get_be32(pb);
1102 if (!sc->sample_size) /* do not overwrite value computed in stsd */
1103 sc->sample_size = sample_size;
1104 entries = get_be32(pb);
1105 if(entries >= UINT_MAX / sizeof(long))
1108 sc->sample_count = entries;
1113 av_log(NULL, AV_LOG_DEBUG, "sample_size = %d sample_count = %d\n", sc->sample_size, sc->sample_count);
1115 sc->sample_sizes = av_malloc(entries * sizeof(long));
1116 if (!sc->sample_sizes)
1118 for(i=0; i<entries; i++) {
1119 sc->sample_sizes[i] = get_be32(pb);
1121 av_log(NULL, AV_LOG_DEBUG, "sample_sizes[]=%ld\n", sc->sample_sizes[i]);
1127 static int mov_read_stts(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1129 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
1130 MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
1131 unsigned int i, entries;
1133 int64_t total_sample_count=0;
1135 get_byte(pb); /* version */
1136 get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
1137 entries = get_be32(pb);
1138 if(entries >= UINT_MAX / sizeof(Time2Sample))
1141 sc->stts_count = entries;
1142 sc->stts_data = av_malloc(entries * sizeof(Time2Sample));
1145 av_log(NULL, AV_LOG_DEBUG, "track[%i].stts.entries = %i\n", c->fc->nb_streams-1, entries);
1150 for(i=0; i<entries; i++) {
1151 int sample_duration;
1154 sample_count=get_be32(pb);
1155 sample_duration = get_be32(pb);
1156 sc->stts_data[i].count= sample_count;
1157 sc->stts_data[i].duration= sample_duration;
1159 sc->time_rate= ff_gcd(sc->time_rate, sample_duration);
1161 dprintf("sample_count=%d, sample_duration=%d\n",sample_count,sample_duration);
1163 duration+=(int64_t)sample_duration*sample_count;
1164 total_sample_count+=sample_count;
1167 st->nb_frames= total_sample_count;
1169 st->duration= duration;
1173 static int mov_read_ctts(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1175 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
1176 MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
1177 unsigned int i, entries;
1179 get_byte(pb); /* version */
1180 get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
1181 entries = get_be32(pb);
1182 if(entries >= UINT_MAX / sizeof(Time2Sample))
1185 sc->ctts_count = entries;
1186 sc->ctts_data = av_malloc(entries * sizeof(Time2Sample));
1188 dprintf("track[%i].ctts.entries = %i\n", c->fc->nb_streams-1, entries);
1190 for(i=0; i<entries; i++) {
1191 int count =get_be32(pb);
1192 int duration =get_be32(pb);
1195 av_log(c->fc, AV_LOG_ERROR, "negative ctts, ignoring\n");
1197 url_fskip(pb, 8 * (entries - i - 1));
1200 sc->ctts_data[i].count = count;
1201 sc->ctts_data[i].duration= duration;
1203 sc->time_rate= ff_gcd(sc->time_rate, duration);
1208 static int mov_read_trak(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1211 MOVStreamContext *sc;
1213 st = av_new_stream(c->fc, c->fc->nb_streams);
1215 sc = av_mallocz(sizeof(MOVStreamContext));
1222 st->codec->codec_type = CODEC_TYPE_DATA;
1223 st->start_time = 0; /* XXX: check */
1224 c->streams[c->fc->nb_streams-1] = sc;
1226 return mov_read_default(c, pb, atom);
1229 static int mov_read_tkhd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1231 AVStream *st = c->fc->streams[c->fc->nb_streams-1];
1232 int version = get_byte(pb);
1234 get_byte(pb); get_byte(pb);
1235 get_byte(pb); /* flags */
1237 MOV_TRACK_ENABLED 0x0001
1238 MOV_TRACK_IN_MOVIE 0x0002
1239 MOV_TRACK_IN_PREVIEW 0x0004
1240 MOV_TRACK_IN_POSTER 0x0008
1247 get_be32(pb); /* creation time */
1248 get_be32(pb); /* modification time */
1250 st->id = (int)get_be32(pb); /* track id (NOT 0 !)*/
1251 get_be32(pb); /* reserved */
1252 st->start_time = 0; /* check */
1253 (version == 1) ? get_be64(pb) : get_be32(pb); /* highlevel (considering edits) duration in movie timebase */
1254 get_be32(pb); /* reserved */
1255 get_be32(pb); /* reserved */
1257 get_be16(pb); /* layer */
1258 get_be16(pb); /* alternate group */
1259 get_be16(pb); /* volume */
1260 get_be16(pb); /* reserved */
1262 url_fskip(pb, 36); /* display matrix */
1264 /* those are fixed-point */
1265 get_be32(pb); /* track width */
1266 get_be32(pb); /* track height */
1271 /* this atom should be null (from specs), but some buggy files put the 'moov' atom inside it... */
1272 /* like the files created with Adobe Premiere 5.0, for samples see */
1273 /* http://graphics.tudelft.nl/~wouter/publications/soundtests/ */
1274 static int mov_read_wide(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1279 return 0; /* continue */
1280 if (get_be32(pb) != 0) { /* 0 sized mdat atom... use the 'wide' atom size */
1281 url_fskip(pb, atom.size - 4);
1284 atom.type = get_le32(pb);
1287 if (atom.type != MKTAG('m', 'd', 'a', 't')) {
1288 url_fskip(pb, atom.size);
1291 err = mov_read_mdat(c, pb, atom);
1295 static int mov_read_cmov(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1300 uint8_t *moov_data; /* uncompressed data */
1301 long cmov_len, moov_len;
1304 get_be32(pb); /* dcom atom */
1305 if (get_le32(pb) != MKTAG( 'd', 'c', 'o', 'm' ))
1307 if (get_le32(pb) != MKTAG( 'z', 'l', 'i', 'b' )) {
1308 av_log(NULL, AV_LOG_ERROR, "unknown compression for cmov atom !");
1311 get_be32(pb); /* cmvd atom */
1312 if (get_le32(pb) != MKTAG( 'c', 'm', 'v', 'd' ))
1314 moov_len = get_be32(pb); /* uncompressed size */
1315 cmov_len = atom.size - 6 * 4;
1317 cmov_data = av_malloc(cmov_len);
1320 moov_data = av_malloc(moov_len);
1325 get_buffer(pb, cmov_data, cmov_len);
1326 if(uncompress (moov_data, (uLongf *) &moov_len, (const Bytef *)cmov_data, cmov_len) != Z_OK)
1328 if(init_put_byte(&ctx, moov_data, moov_len, 0, NULL, NULL, NULL, NULL) != 0)
1330 atom.type = MKTAG( 'm', 'o', 'o', 'v' );
1332 atom.size = moov_len;
1334 // { int fd = open("/tmp/uncompheader.mov", O_WRONLY | O_CREAT); write(fd, moov_data, moov_len); close(fd); }
1336 ret = mov_read_default(c, &ctx, atom);
1341 av_log(c->fc, AV_LOG_ERROR, "this file requires zlib support compiled in\n");
1346 /* edit list atom */
1347 static int mov_read_elst(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
1351 get_byte(pb); /* version */
1352 get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
1353 edit_count= c->streams[c->fc->nb_streams-1]->edit_count = get_be32(pb); /* entries */
1355 for(i=0; i<edit_count; i++){
1356 get_be32(pb); /* Track duration */
1357 get_be32(pb); /* Media time */
1358 get_be32(pb); /* Media rate */
1360 dprintf("track[%i].edit_count = %i\n", c->fc->nb_streams-1, c->streams[c->fc->nb_streams-1]->edit_count);
1364 static const MOVParseTableEntry mov_default_parse_table[] = {
1366 { MKTAG( 'c', 'o', '6', '4' ), mov_read_stco },
1367 { MKTAG( 'c', 't', 't', 's' ), mov_read_ctts }, /* composition time to sample */
1368 { MKTAG( 'e', 'd', 't', 's' ), mov_read_default },
1369 { MKTAG( 'e', 'l', 's', 't' ), mov_read_elst },
1370 { MKTAG( 'e', 'n', 'd', 'a' ), mov_read_enda },
1371 { MKTAG( 'f', 'i', 'e', 'l' ), mov_read_extradata },
1372 { MKTAG( 'f', 't', 'y', 'p' ), mov_read_ftyp },
1373 { MKTAG( 'h', 'd', 'l', 'r' ), mov_read_hdlr },
1374 { MKTAG( 'j', 'p', '2', 'h' ), mov_read_extradata },
1375 { MKTAG( 'm', 'd', 'a', 't' ), mov_read_mdat },
1376 { MKTAG( 'm', 'd', 'h', 'd' ), mov_read_mdhd },
1377 { MKTAG( 'm', 'd', 'i', 'a' ), mov_read_default },
1378 { MKTAG( 'm', 'i', 'n', 'f' ), mov_read_default },
1379 { MKTAG( 'm', 'o', 'o', 'v' ), mov_read_moov },
1380 { MKTAG( 'm', 'v', 'h', 'd' ), mov_read_mvhd },
1381 { MKTAG( 'S', 'M', 'I', ' ' ), mov_read_smi }, /* Sorenson extension ??? */
1382 { MKTAG( 'a', 'l', 'a', 'c' ), mov_read_extradata }, /* alac specific atom */
1383 { MKTAG( 'a', 'v', 'c', 'C' ), mov_read_avcC },
1384 { MKTAG( 's', 't', 'b', 'l' ), mov_read_default },
1385 { MKTAG( 's', 't', 'c', 'o' ), mov_read_stco },
1386 { MKTAG( 's', 't', 's', 'c' ), mov_read_stsc },
1387 { MKTAG( 's', 't', 's', 'd' ), mov_read_stsd }, /* sample description */
1388 { MKTAG( 's', 't', 's', 's' ), mov_read_stss }, /* sync sample */
1389 { MKTAG( 's', 't', 's', 'z' ), mov_read_stsz }, /* sample size */
1390 { MKTAG( 's', 't', 't', 's' ), mov_read_stts },
1391 { MKTAG( 't', 'k', 'h', 'd' ), mov_read_tkhd }, /* track header */
1392 { MKTAG( 't', 'r', 'a', 'k' ), mov_read_trak },
1393 { MKTAG( 'w', 'a', 'v', 'e' ), mov_read_wave },
1394 { MKTAG( 'c', 't', 'a', 'b' ), mov_read_ctab },
1395 { MKTAG( 'e', 's', 'd', 's' ), mov_read_esds },
1396 { MKTAG( 'w', 'i', 'd', 'e' ), mov_read_wide }, /* place holder */
1397 { MKTAG( 'c', 'm', 'o', 'v' ), mov_read_cmov },
1401 static void mov_free_stream_context(MOVStreamContext *sc)
1404 av_freep(&sc->ctts_data);
1409 /* XXX: is it sufficient ? */
1410 static int mov_probe(AVProbeData *p)
1412 unsigned int offset;
1416 /* check file header */
1417 if (p->buf_size <= 12)
1421 /* ignore invalid offset */
1422 if ((offset + 8) > (unsigned int)p->buf_size)
1424 tag = AV_RL32(p->buf + offset + 4);
1426 /* check for obvious tags */
1427 case MKTAG( 'j', 'P', ' ', ' ' ): /* jpeg 2000 signature */
1428 case MKTAG( 'm', 'o', 'o', 'v' ):
1429 case MKTAG( 'm', 'd', 'a', 't' ):
1430 case MKTAG( 'p', 'n', 'o', 't' ): /* detect movs with preview pics like ew.mov and april.mov */
1431 case MKTAG( 'u', 'd', 't', 'a' ): /* Packet Video PVAuthor adds this and a lot of more junk */
1432 return AVPROBE_SCORE_MAX;
1433 /* those are more common words, so rate then a bit less */
1434 case MKTAG( 'w', 'i', 'd', 'e' ):
1435 case MKTAG( 'f', 'r', 'e', 'e' ):
1436 case MKTAG( 'j', 'u', 'n', 'k' ):
1437 case MKTAG( 'p', 'i', 'c', 't' ):
1438 return AVPROBE_SCORE_MAX - 5;
1439 case MKTAG( 'f', 't', 'y', 'p' ):
1440 case MKTAG( 's', 'k', 'i', 'p' ):
1441 case MKTAG( 'u', 'u', 'i', 'd' ):
1442 offset = AV_RB32(p->buf+offset) + offset;
1443 /* if we only find those cause probedata is too small at least rate them */
1444 score = AVPROBE_SCORE_MAX - 50;
1447 /* unrecognized tag */
1454 static void mov_build_index(MOVContext *mov, AVStream *st)
1456 MOVStreamContext *sc = st->priv_data;
1457 offset_t current_offset;
1458 int64_t current_dts = 0;
1459 unsigned int stts_index = 0;
1460 unsigned int stsc_index = 0;
1461 unsigned int stss_index = 0;
1462 unsigned int i, j, k;
1464 if (sc->sample_sizes || st->codec->codec_type == CODEC_TYPE_VIDEO || sc->dv_audio_container) {
1465 unsigned int current_sample = 0;
1466 unsigned int stts_sample = 0;
1467 unsigned int keyframe, sample_size;
1468 unsigned int distance = 0;
1470 st->nb_frames = sc->sample_count;
1471 for (i = 0; i < sc->chunk_count; i++) {
1472 current_offset = sc->chunk_offsets[i];
1473 if (stsc_index + 1 < sc->sample_to_chunk_sz && i + 1 == sc->sample_to_chunk[stsc_index + 1].first)
1475 for (j = 0; j < sc->sample_to_chunk[stsc_index].count; j++) {
1476 if (current_sample >= sc->sample_count) {
1477 av_log(mov->fc, AV_LOG_ERROR, "wrong sample count\n");
1480 keyframe = !sc->keyframe_count || current_sample + 1 == sc->keyframes[stss_index];
1483 if (stss_index + 1 < sc->keyframe_count)
1486 sample_size = sc->sample_size > 0 ? sc->sample_size : sc->sample_sizes[current_sample];
1487 dprintf("AVIndex stream %d, sample %d, offset %"PRIx64", dts %"PRId64", size %d, distance %d, keyframe %d\n",
1488 st->index, current_sample, current_offset, current_dts, sample_size, distance, keyframe);
1489 av_add_index_entry(st, current_offset, current_dts, sample_size, distance, keyframe ? AVINDEX_KEYFRAME : 0);
1490 current_offset += sample_size;
1491 assert(sc->stts_data[stts_index].duration % sc->time_rate == 0);
1492 current_dts += sc->stts_data[stts_index].duration / sc->time_rate;
1496 if (stts_index + 1 < sc->stts_count && stts_sample == sc->stts_data[stts_index].count) {
1502 } else { /* read whole chunk */
1503 unsigned int chunk_samples, chunk_size, chunk_duration;
1505 for (i = 0; i < sc->chunk_count; i++) {
1506 current_offset = sc->chunk_offsets[i];
1507 if (stsc_index + 1 < sc->sample_to_chunk_sz && i + 1 == sc->sample_to_chunk[stsc_index + 1].first)
1509 chunk_samples = sc->sample_to_chunk[stsc_index].count;
1510 /* get chunk size */
1511 if (sc->sample_size > 1 || st->codec->codec_id == CODEC_ID_PCM_U8 || st->codec->codec_id == CODEC_ID_PCM_S8)
1512 chunk_size = chunk_samples * sc->sample_size;
1513 else if (sc->sample_size_v1.den > 0 && (chunk_samples * sc->sample_size_v1.num % sc->sample_size_v1.den == 0))
1514 chunk_size = chunk_samples * sc->sample_size_v1.num / sc->sample_size_v1.den;
1515 else { /* workaround to find nearest next chunk offset */
1516 chunk_size = INT_MAX;
1517 for (j = 0; j < mov->total_streams; j++) {
1518 MOVStreamContext *msc = mov->streams[j];
1520 for (k = msc->next_chunk; k < msc->chunk_count; k++) {
1521 if (msc->chunk_offsets[k] > current_offset && msc->chunk_offsets[k] - current_offset < chunk_size) {
1522 chunk_size = msc->chunk_offsets[k] - current_offset;
1523 msc->next_chunk = k;
1528 /* check for last chunk */
1529 if (chunk_size == INT_MAX)
1530 for (j = 0; j < mov->mdat_count; j++) {
1531 dprintf("mdat %d, offset %"PRIx64", size %"PRId64", current offset %"PRIx64"\n",
1532 j, mov->mdat_list[j].offset, mov->mdat_list[j].size, current_offset);
1533 if (mov->mdat_list[j].offset <= current_offset && mov->mdat_list[j].offset + mov->mdat_list[j].size > current_offset)
1534 chunk_size = mov->mdat_list[j].offset + mov->mdat_list[j].size - current_offset;
1536 assert(chunk_size != INT_MAX);
1537 for (j = 0; j < mov->total_streams; j++) {
1538 mov->streams[j]->next_chunk = 0;
1541 av_add_index_entry(st, current_offset, current_dts, chunk_size, 0, AVINDEX_KEYFRAME);
1542 /* get chunk duration */
1544 while (chunk_samples > 0) {
1545 if (chunk_samples < sc->stts_data[stts_index].count) {
1546 chunk_duration += sc->stts_data[stts_index].duration * chunk_samples;
1547 sc->stts_data[stts_index].count -= chunk_samples;
1550 chunk_duration += sc->stts_data[stts_index].duration * chunk_samples;
1551 chunk_samples -= sc->stts_data[stts_index].count;
1552 if (stts_index + 1 < sc->stts_count) {
1557 dprintf("AVIndex stream %d, chunk %d, offset %"PRIx64", dts %"PRId64", size %d, duration %d\n",
1558 st->index, i, current_offset, current_dts, chunk_size, chunk_duration);
1559 assert(chunk_duration % sc->time_rate == 0);
1560 current_dts += chunk_duration / sc->time_rate;
1564 /* adjust sample count to avindex entries */
1565 sc->sample_count = st->nb_index_entries;
1568 static int mov_read_header(AVFormatContext *s, AVFormatParameters *ap)
1570 MOVContext *mov = (MOVContext *) s->priv_data;
1571 ByteIOContext *pb = &s->pb;
1573 MOV_atom_t atom = { 0, 0, 0 };
1576 mov->parse_table = mov_default_parse_table;
1578 if(!url_is_streamed(pb)) /* .mov and .mp4 aren't streamable anyway (only progressive download if moov is before mdat) */
1579 atom.size = url_fsize(pb);
1581 atom.size = 0x7FFFFFFFFFFFFFFFLL;
1583 /* check MOV header */
1584 err = mov_read_default(mov, pb, atom);
1585 if (err<0 || (!mov->found_moov && !mov->found_mdat)) {
1586 av_log(s, AV_LOG_ERROR, "mov: header not found !!! (err:%d, moov:%d, mdat:%d) pos:%"PRId64"\n",
1587 err, mov->found_moov, mov->found_mdat, url_ftell(pb));
1590 dprintf("on_parse_exit_offset=%d\n", (int) url_ftell(pb));
1592 /* some cleanup : make sure we are on the mdat atom */
1593 if(!url_is_streamed(pb) && (url_ftell(pb) != mov->mdat_offset))
1594 url_fseek(pb, mov->mdat_offset, SEEK_SET);
1596 mov->total_streams = s->nb_streams;
1598 for(i=0; i<mov->total_streams; i++) {
1599 MOVStreamContext *sc = mov->streams[i];
1601 if(!sc->stts_count || !sc->chunk_count || !sc->sample_to_chunk_sz ||
1602 (!sc->sample_size && !sc->sample_count)){
1603 av_log(s, AV_LOG_ERROR, "missing mandatory atoms, broken header\n");
1609 sc->time_scale= mov->time_scale;
1610 av_set_pts_info(s->streams[i], 64, sc->time_rate, sc->time_scale);
1612 if(s->streams[i]->duration != AV_NOPTS_VALUE){
1613 assert(s->streams[i]->duration % sc->time_rate == 0);
1614 s->streams[i]->duration /= sc->time_rate;
1617 mov_build_index(mov, s->streams[i]);
1620 for(i=0; i<mov->total_streams; i++) {
1621 /* dont need those anymore */
1622 av_freep(&mov->streams[i]->chunk_offsets);
1623 av_freep(&mov->streams[i]->sample_to_chunk);
1624 av_freep(&mov->streams[i]->sample_sizes);
1625 av_freep(&mov->streams[i]->keyframes);
1626 av_freep(&mov->streams[i]->stts_data);
1628 av_freep(&mov->mdat_list);
1632 static int mov_read_packet(AVFormatContext *s, AVPacket *pkt)
1634 MOVContext *mov = s->priv_data;
1635 MOVStreamContext *sc = 0;
1636 AVIndexEntry *sample = 0;
1637 int64_t best_dts = INT64_MAX;
1640 for (i = 0; i < mov->total_streams; i++) {
1641 MOVStreamContext *msc = mov->streams[i];
1643 if (s->streams[i]->discard != AVDISCARD_ALL && msc->current_sample < msc->sample_count) {
1644 AVIndexEntry *current_sample = &s->streams[i]->index_entries[msc->current_sample];
1645 int64_t dts = av_rescale(current_sample->timestamp * (int64_t)msc->time_rate, AV_TIME_BASE, msc->time_scale);
1647 dprintf("stream %d, sample %ld, dts %"PRId64"\n", i, msc->current_sample, dts);
1648 if (dts < best_dts) {
1649 sample = current_sample;
1657 /* must be done just before reading, to avoid infinite loop on sample */
1658 sc->current_sample++;
1659 if (sample->pos >= url_fsize(&s->pb)) {
1660 av_log(mov->fc, AV_LOG_ERROR, "stream %d, offset 0x%"PRIx64": partial file\n", sc->ffindex, sample->pos);
1663 #ifdef CONFIG_DV_DEMUXER
1664 if (sc->dv_audio_container) {
1665 dv_get_packet(mov->dv_demux, pkt);
1666 dprintf("dv audio pkt size %d\n", pkt->size);
1669 url_fseek(&s->pb, sample->pos, SEEK_SET);
1670 av_get_packet(&s->pb, pkt, sample->size);
1671 #ifdef CONFIG_DV_DEMUXER
1672 if (mov->dv_demux) {
1673 void *pkt_destruct_func = pkt->destruct;
1674 dv_produce_packet(mov->dv_demux, pkt, pkt->data, pkt->size);
1675 pkt->destruct = pkt_destruct_func;
1679 pkt->stream_index = sc->ffindex;
1680 pkt->dts = sample->timestamp;
1681 if (sc->ctts_data) {
1682 assert(sc->ctts_data[sc->sample_to_ctime_index].duration % sc->time_rate == 0);
1683 pkt->pts = pkt->dts + sc->ctts_data[sc->sample_to_ctime_index].duration / sc->time_rate;
1684 /* update ctts context */
1685 sc->sample_to_ctime_sample++;
1686 if (sc->sample_to_ctime_index < sc->ctts_count && sc->ctts_data[sc->sample_to_ctime_index].count == sc->sample_to_ctime_sample) {
1687 sc->sample_to_ctime_index++;
1688 sc->sample_to_ctime_sample = 0;
1691 pkt->pts = pkt->dts;
1693 pkt->flags |= sample->flags & AVINDEX_KEYFRAME ? PKT_FLAG_KEY : 0;
1694 pkt->pos = sample->pos;
1695 dprintf("stream %d, pts %"PRId64", dts %"PRId64", pos 0x%"PRIx64", duration %d\n", pkt->stream_index, pkt->pts, pkt->dts, pkt->pos, pkt->duration);
1699 static int mov_seek_stream(AVStream *st, int64_t timestamp, int flags)
1701 MOVStreamContext *sc = st->priv_data;
1702 int sample, time_sample;
1705 sample = av_index_search_timestamp(st, timestamp, flags);
1706 dprintf("stream %d, timestamp %"PRId64", sample %d\n", st->index, timestamp, sample);
1707 if (sample < 0) /* not sure what to do */
1709 sc->current_sample = sample;
1710 dprintf("stream %d, found sample %ld\n", st->index, sc->current_sample);
1711 /* adjust ctts index */
1712 if (sc->ctts_data) {
1714 for (i = 0; i < sc->ctts_count; i++) {
1715 time_sample += sc->ctts_data[i].count;
1716 if (time_sample >= sc->current_sample) {
1717 sc->sample_to_ctime_index = i;
1718 sc->sample_to_ctime_sample = time_sample - sc->current_sample;
1726 static int mov_read_seek(AVFormatContext *s, int stream_index, int64_t sample_time, int flags)
1729 int64_t seek_timestamp, timestamp;
1733 if (stream_index >= s->nb_streams)
1736 st = s->streams[stream_index];
1737 sample = mov_seek_stream(st, sample_time, flags);
1741 /* adjust seek timestamp to found sample timestamp */
1742 seek_timestamp = st->index_entries[sample].timestamp;
1744 for (i = 0; i < s->nb_streams; i++) {
1746 if (stream_index == i || st->discard == AVDISCARD_ALL)
1749 timestamp = av_rescale_q(seek_timestamp, s->streams[stream_index]->time_base, st->time_base);
1750 mov_seek_stream(st, timestamp, flags);
1755 static int mov_read_close(AVFormatContext *s)
1758 MOVContext *mov = (MOVContext *) s->priv_data;
1759 for(i=0; i<mov->total_streams; i++)
1760 mov_free_stream_context(mov->streams[i]);
1761 /* free color tabs */
1762 for(i=0; i<mov->ctab_size; i++)
1763 av_freep(&mov->ctab[i]);
1765 for(i=0; i<mov->dv_fctx->nb_streams; i++){
1766 av_freep(&mov->dv_fctx->streams[i]->codec);
1767 av_freep(&mov->dv_fctx->streams[i]);
1769 av_freep(&mov->dv_fctx);
1770 av_freep(&mov->dv_demux);
1772 av_freep(&mov->ctab);
1776 AVInputFormat mov_demuxer = {
1777 "mov,mp4,m4a,3gp,3g2,mj2",
1778 "QuickTime/MPEG4/Motion JPEG 2000 format",