Commit | Line | Data |
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6cea494e ZK |
1 | /* |
2 | * MOV decoder. | |
19720f15 | 3 | * Copyright (c) 2001 Fabrice Bellard. |
6cea494e | 4 | * |
19720f15 FB |
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. | |
6cea494e | 9 | * |
19720f15 | 10 | * This library is distributed in the hope that it will be useful, |
6cea494e | 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
19720f15 FB |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
13 | * Lesser General Public License for more details. | |
6cea494e | 14 | * |
19720f15 FB |
15 | * You should have received a copy of the GNU Lesser General Public |
16 | * License along with this library; if not, write to the Free Software | |
17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
6cea494e ZK |
18 | */ |
19 | #include "avformat.h" | |
20 | #include "avi.h" | |
21 | ||
22 | /* | |
23 | * First version by Francois Revol revol@free.fr | |
24 | * | |
25 | * Features and limitations: | |
26 | * - reads most of the QT files I have (at least the structure), | |
27 | * the exceptions are .mov with zlib compressed headers ('cmov' section). It shouldn't be hard to implement. | |
28 | * - ffmpeg has nearly none of the usual QuickTime codecs, | |
29 | * although I succesfully dumped raw and mp3 audio tracks off .mov files. | |
30 | * Sample QuickTime files with mp3 audio can be found at: http://www.3ivx.com/showcase.html | |
31 | * - .mp4 parsing is still hazardous, although the format really is QuickTime with some minor changes | |
32 | * (to make .mov parser crash maybe ?), despite what they say in the MPEG FAQ at | |
33 | * http://mpeg.telecomitalialab.com/faq.htm | |
34 | * - the code is quite ugly... maybe I won't do it recursive next time :-) | |
35 | * | |
36 | * Funny I didn't know about http://sourceforge.net/projects/qt-ffmpeg/ | |
37 | * when coding this :) (it's a writer anyway) | |
38 | * | |
39 | * Reference documents: | |
40 | * http://www.geocities.com/xhelmboyx/quicktime/formats/qtm-layout.txt | |
41 | * Apple: | |
42 | * http://developer.apple.com/techpubs/quicktime/qtdevdocs/QTFF/qtff.html | |
43 | * http://developer.apple.com/techpubs/quicktime/qtdevdocs/PDF/QTFileFormat.pdf | |
44 | * QuickTime is a trademark of Apple (AFAIK :)) | |
45 | */ | |
46 | ||
c9a65ca8 | 47 | //#define DEBUG |
6cea494e ZK |
48 | |
49 | #ifdef DEBUG | |
50 | /* | |
51 | * XXX: static sux, even more in a multithreaded environment... | |
52 | * Avoid them. This is here just to help debugging. | |
53 | */ | |
54 | static int debug_indent = 0; | |
55 | void print_atom(const char *str, UINT32 type, UINT64 offset, UINT64 size) | |
56 | { | |
57 | unsigned int tag, i; | |
58 | tag = (unsigned int) type; | |
59 | i=debug_indent; | |
60 | if(tag == 0) tag = MKTAG('N', 'U', 'L', 'L'); | |
61 | while(i--) | |
62 | printf("|"); | |
63 | printf("parse:"); | |
64 | printf(" %s: tag=%c%c%c%c offset=%d size=0x%x\n", | |
65 | str, tag & 0xff, | |
66 | (tag >> 8) & 0xff, | |
67 | (tag >> 16) & 0xff, | |
68 | (tag >> 24) & 0xff, | |
69 | (unsigned int)offset, | |
70 | (unsigned int)size); | |
71 | } | |
72 | #endif | |
73 | ||
74 | /* some streams in QT (and in MP4 mostly) aren't either video nor audio */ | |
75 | /* so we first list them as this, then clean up the list of streams we give back, */ | |
76 | /* getting rid of these */ | |
77 | #define CODEC_TYPE_MOV_OTHER 2 | |
78 | ||
a266644f | 79 | static const CodecTag mov_video_tags[] = { |
6cea494e ZK |
80 | /* { CODEC_ID_, MKTAG('c', 'v', 'i', 'd') }, *//* Cinepak */ |
81 | /* { CODEC_ID_JPEG, MKTAG('j', 'p', 'e', 'g') }, *//* JPEG */ | |
82 | { CODEC_ID_H263, MKTAG('r', 'a', 'w', ' ') }, /* Uncompressed RGB */ | |
83 | { CODEC_ID_H263, MKTAG('Y', 'u', 'v', '2') }, /* Uncompressed YUV422 */ | |
84 | /* Graphics */ | |
85 | /* Animation */ | |
86 | /* Apple video */ | |
87 | /* Kodak Photo CD */ | |
88 | /* { CODEC_ID_JPEG, MKTAG('j', 'p', 'e', 'g') }, *//* JPEG ? */ | |
89 | { CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'e', 'g') }, /* MPEG */ | |
90 | { CODEC_ID_MJPEG, MKTAG('m', 'j', 'p', 'b') }, /* Motion-JPEG (format A) */ | |
91 | { CODEC_ID_MJPEG, MKTAG('m', 'j', 'p', 'b') }, /* Motion-JPEG (format B) */ | |
92 | /* { CODEC_ID_GIF, MKTAG('g', 'i', 'f', ' ') }, *//* embedded gif files as frames (usually one "click to play movie" frame) */ | |
93 | /* Sorenson video */ | |
94 | { CODEC_ID_MPEG4, MKTAG('m', 'p', '4', 'v') }, /* OpenDiVX *//* yeah ! */ | |
95 | { CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', 'X') }, /* OpenDiVX *//* sample files at http://heroinewarrior.com/xmovie.php3 use this tag */ | |
96 | /* { CODEC_ID_, MKTAG('I', 'V', '5', '0') }, *//* Indeo 5.0 */ | |
97 | { 0, 0 }, | |
98 | }; | |
99 | ||
a266644f | 100 | static const CodecTag mov_audio_tags[] = { |
6cea494e ZK |
101 | /* { CODEC_ID_PCM_S16BE, MKTAG('N', 'O', 'N', 'E') }, *//* uncompressed */ |
102 | { CODEC_ID_PCM_S16BE, MKTAG('t', 'w', 'o', 's') }, /* 16 bits */ | |
103 | { CODEC_ID_PCM_S8, MKTAG('t', 'w', 'o', 's') }, /* 8 bits */ | |
104 | { CODEC_ID_PCM_U8, 0x20776172 }, /* 8 bits unsigned */ | |
105 | { CODEC_ID_PCM_S16LE, MKTAG('s', 'o', 'w', 't') }, /* */ | |
106 | { CODEC_ID_PCM_MULAW, MKTAG('u', 'l', 'a', 'w') }, /* */ | |
107 | { CODEC_ID_PCM_ALAW, MKTAG('a', 'l', 'a', 'w') }, /* */ | |
108 | /* { CODEC_ID_, MKTAG('i', 'm', 'a', '4') }, *//* IMA-4 */ | |
109 | ||
110 | { CODEC_ID_MP2, MKTAG('.', 'm', 'p', '3') }, /* MPEG layer 3 */ /* sample files at http://www.3ivx.com/showcase.html use this tag */ | |
111 | { CODEC_ID_MP2, 0x6D730055 }, /* MPEG layer 3 */ | |
112 | { CODEC_ID_MP2, 0x5500736D }, /* MPEG layer 3 *//* XXX: check endianness */ | |
113 | /* { CODEC_ID_OGG_VORBIS, MKTAG('O', 'g', 'g', 'S') }, *//* sample files at http://heroinewarrior.com/xmovie.php3 use this tag */ | |
114 | /* MP4 tags */ | |
115 | /* { CODEC_ID_AAC, MKTAG('m', 'p', '4', 'a') }, *//* MPEG 4 AAC or audio ? */ | |
116 | /* The standard for mpeg4 audio is still not normalised AFAIK anyway */ | |
117 | { 0, 0 }, | |
118 | }; | |
119 | ||
120 | /* the QuickTime file format is quite convoluted... | |
121 | * it has lots of index tables, each indexing something in another one... | |
122 | * Here we just use what is needed to read the chunks | |
123 | */ | |
124 | ||
125 | typedef struct MOV_sample_to_chunk_tbl { | |
126 | long first; | |
127 | long count; | |
128 | long id; | |
129 | } MOV_sample_to_chunk_tbl; | |
130 | ||
131 | typedef struct MOVStreamContext { | |
132 | int ffindex; /* the ffmpeg stream id */ | |
133 | int is_ff_stream; /* Is this stream presented to ffmpeg ? i.e. is this an audio or video stream ? */ | |
134 | long next_chunk; | |
135 | long chunk_count; | |
136 | INT64 *chunk_offsets; | |
137 | long sample_to_chunk_sz; | |
138 | MOV_sample_to_chunk_tbl *sample_to_chunk; | |
139 | long sample_size; | |
140 | long sample_count; | |
141 | long *sample_sizes; | |
142 | } MOVStreamContext; | |
143 | ||
144 | typedef struct MOVContext { | |
145 | 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) */ | |
146 | AVFormatContext *fc; | |
147 | long time_scale; | |
148 | int found_moov; /* when both 'moov' and 'mdat' sections has been found */ | |
149 | int found_mdat; /* we suppose we have enough data to read the file */ | |
150 | INT64 mdat_size; | |
151 | INT64 mdat_offset; | |
152 | int total_streams; | |
153 | /* some streams listed here aren't presented to the ffmpeg API, since they aren't either video nor audio | |
154 | * but we need the info to be able to skip data from those streams in the 'mdat' section | |
155 | */ | |
156 | MOVStreamContext *streams[MAX_STREAMS]; | |
157 | ||
158 | INT64 next_chunk_offset; | |
159 | } MOVContext; | |
160 | ||
161 | ||
162 | struct MOVParseTableEntry; | |
163 | ||
164 | /* XXX: it's the first time I make a recursive parser I think... sorry if it's ugly :P */ | |
165 | ||
166 | /* those functions parse an atom */ | |
167 | /* return code: | |
168 | 1: found what I wanted, exit | |
169 | 0: continue to parse next atom | |
170 | -1: error occured, exit | |
171 | */ | |
684f44d9 | 172 | typedef int (*mov_parse_function)(const struct MOVParseTableEntry *parse_table, |
6cea494e ZK |
173 | ByteIOContext *pb, |
174 | UINT32 atom_type, | |
175 | INT64 atom_offset, /* after the size and type field (and eventually the extended size) */ | |
176 | INT64 atom_size, /* total size (excluding the size and type fields) */ | |
177 | void *param); | |
178 | ||
179 | /* links atom IDs to parse functions */ | |
180 | typedef struct MOVParseTableEntry { | |
181 | UINT32 type; | |
182 | mov_parse_function func; | |
183 | } MOVParseTableEntry; | |
184 | ||
684f44d9 | 185 | static int parse_leaf(const MOVParseTableEntry *parse_table, ByteIOContext *pb, UINT32 atom_type, INT64 atom_offset, INT64 atom_size, void *param) |
6cea494e ZK |
186 | { |
187 | #ifdef DEBUG | |
188 | print_atom("leaf", atom_type, atom_offset, atom_size); | |
189 | #endif | |
190 | if(atom_size>1) | |
191 | url_fskip(pb, atom_size); | |
192 | /* url_seek(pb, atom_offset+atom_size, SEEK_SET); */ | |
193 | return 0; | |
194 | } | |
195 | ||
196 | ||
684f44d9 | 197 | static int parse_default(const MOVParseTableEntry *parse_table, ByteIOContext *pb, UINT32 atom_type, INT64 atom_offset, INT64 atom_size, void *param) |
6cea494e ZK |
198 | { |
199 | UINT32 type, foo=0; | |
200 | UINT64 offset, size; | |
201 | UINT64 total_size = 0; | |
202 | int i; | |
203 | int err = 0; | |
204 | foo=0; | |
205 | #ifdef DEBUG | |
206 | print_atom("default", atom_type, atom_offset, atom_size); | |
207 | debug_indent++; | |
208 | #endif | |
209 | ||
210 | offset = atom_offset; | |
211 | ||
212 | if(atom_size < 0) | |
213 | atom_size = 0x0FFFFFFFFFFFFFFF; | |
214 | while((total_size < atom_size) && !url_feof(pb) && !err) { | |
215 | size=atom_size; | |
216 | type=0L; | |
217 | if(atom_size >= 8) { | |
218 | size = get_be32(pb); | |
219 | type = get_le32(pb); | |
220 | } | |
221 | total_size += 8; | |
222 | offset+=8; | |
223 | // printf("type: %08lx sz: %08lx", type, size); | |
224 | if(size == 1) { /* 64 bit extended size */ | |
225 | size = get_be64(pb); | |
226 | offset+=8; | |
227 | total_size+=8; | |
228 | size-=8; | |
229 | } | |
230 | if(size == 0) | |
231 | size = atom_size - total_size; | |
232 | size-=8; | |
233 | for(i=0; parse_table[i].type != 0L && parse_table[i].type != type; i++); | |
234 | ||
235 | // printf(" i=%ld\n", i); | |
684f44d9 | 236 | if (parse_table[i].type == 0) { /* skip leaf atoms data */ |
6cea494e ZK |
237 | // url_seek(pb, atom_offset+atom_size, SEEK_SET); |
238 | #ifdef DEBUG | |
239 | print_atom("unknown", type, offset, size); | |
240 | #endif | |
241 | url_fskip(pb, size); | |
242 | } else | |
243 | err = (parse_table[i].func)(parse_table, pb, type, offset, size, param); | |
244 | ||
245 | offset+=size; | |
246 | total_size+=size; | |
247 | } | |
248 | ||
249 | #ifdef DEBUG | |
250 | debug_indent--; | |
251 | #endif | |
252 | return err; | |
253 | } | |
254 | ||
684f44d9 | 255 | static int parse_mvhd(const MOVParseTableEntry *parse_table, ByteIOContext *pb, UINT32 atom_type, INT64 atom_offset, INT64 atom_size, void *param) |
6cea494e ZK |
256 | { |
257 | MOVContext *c; | |
258 | #ifdef DEBUG | |
259 | print_atom("mvhd", atom_type, atom_offset, atom_size); | |
260 | #endif | |
261 | c = (MOVContext *)param; | |
262 | ||
263 | get_byte(pb); /* version */ | |
264 | get_byte(pb); get_byte(pb); get_byte(pb); /* flags */ | |
265 | ||
266 | get_be32(pb); /* creation time */ | |
267 | get_be32(pb); /* modification time */ | |
268 | c->time_scale = get_be32(pb); /* time scale */ | |
269 | get_be32(pb); /* duration */ | |
270 | get_be32(pb); /* preferred scale */ | |
271 | ||
272 | get_be16(pb); /* preferred volume */ | |
273 | ||
274 | url_fskip(pb, 10); /* reserved */ | |
275 | ||
276 | url_fskip(pb, 36); /* display matrix */ | |
277 | ||
278 | get_be32(pb); /* preview time */ | |
279 | get_be32(pb); /* preview duration */ | |
280 | get_be32(pb); /* poster time */ | |
281 | get_be32(pb); /* selection time */ | |
282 | get_be32(pb); /* selection duration */ | |
283 | get_be32(pb); /* current time */ | |
284 | get_be32(pb); /* next track ID */ | |
285 | ||
286 | return 0; | |
287 | } | |
288 | ||
289 | /* this atom should contain all header atoms */ | |
684f44d9 | 290 | static int parse_moov(const MOVParseTableEntry *parse_table, ByteIOContext *pb, UINT32 atom_type, INT64 atom_offset, INT64 atom_size, void *param) |
6cea494e ZK |
291 | { |
292 | int err; | |
293 | MOVContext *c; | |
294 | #ifdef DEBUG | |
295 | print_atom("moov", atom_type, atom_offset, atom_size); | |
296 | #endif | |
297 | c = (MOVContext *)param; | |
298 | ||
299 | err = parse_default(parse_table, pb, atom_type, atom_offset, atom_size, param); | |
300 | /* we parsed the 'moov' atom, we can terminate the parsing as soon as we find the 'mdat' */ | |
301 | /* so we don't parse the whole file if over a network */ | |
302 | c->found_moov=1; | |
303 | if(c->found_mdat) | |
304 | return 1; /* found both, just go */ | |
305 | return 0; /* now go for mdat */ | |
306 | } | |
307 | ||
308 | /* this atom contains actual media data */ | |
684f44d9 | 309 | static int parse_mdat(const MOVParseTableEntry *parse_table, ByteIOContext *pb, UINT32 atom_type, INT64 atom_offset, INT64 atom_size, void *param) |
6cea494e | 310 | { |
6cea494e ZK |
311 | MOVContext *c; |
312 | #ifdef DEBUG | |
313 | print_atom("mdat", atom_type, atom_offset, atom_size); | |
314 | #endif | |
315 | c = (MOVContext *)param; | |
316 | ||
317 | if(atom_size == 0) /* wrong one (MP4) */ | |
318 | return 0; | |
319 | c->found_mdat=1; | |
320 | c->mdat_offset = atom_offset; | |
321 | c->mdat_size = atom_size; | |
322 | if(c->found_moov) | |
323 | return 1; /* found both, just go */ | |
324 | url_fskip(pb, atom_size); | |
325 | return 0; /* now go for moov */ | |
326 | } | |
327 | ||
684f44d9 | 328 | static int parse_trak(const MOVParseTableEntry *parse_table, ByteIOContext *pb, UINT32 atom_type, INT64 atom_offset, INT64 atom_size, void *param) |
6cea494e ZK |
329 | { |
330 | MOVContext *c; | |
331 | AVStream *st; | |
332 | MOVStreamContext *sc; | |
333 | #ifdef DEBUG | |
334 | print_atom("trak", atom_type, atom_offset, atom_size); | |
335 | #endif | |
336 | ||
337 | c = (MOVContext *)param; | |
1ea4f593 FB |
338 | st = av_malloc(sizeof(AVStream)); |
339 | if (!st) return -2; | |
6cea494e ZK |
340 | memset(st, 0, sizeof(AVStream)); |
341 | c->fc->streams[c->fc->nb_streams] = st; | |
1ea4f593 | 342 | sc = av_malloc(sizeof(MOVStreamContext)); |
6cea494e ZK |
343 | st->priv_data = sc; |
344 | st->codec.codec_type = CODEC_TYPE_MOV_OTHER; | |
345 | c->streams[c->fc->nb_streams++] = sc; | |
346 | return parse_default(parse_table, pb, atom_type, atom_offset, atom_size, param); | |
347 | } | |
348 | ||
684f44d9 | 349 | static int parse_tkhd(const MOVParseTableEntry *parse_table, ByteIOContext *pb, UINT32 atom_type, INT64 atom_offset, INT64 atom_size, void *param) |
6cea494e ZK |
350 | { |
351 | MOVContext *c; | |
352 | AVStream *st; | |
353 | #ifdef DEBUG | |
354 | print_atom("tkhd", atom_type, atom_offset, atom_size); | |
355 | #endif | |
356 | ||
357 | c = (MOVContext *)param; | |
358 | st = c->fc->streams[c->fc->nb_streams-1]; | |
359 | ||
360 | get_byte(pb); /* version */ | |
361 | ||
362 | get_byte(pb); get_byte(pb); | |
363 | get_byte(pb); /* flags */ | |
364 | /* | |
365 | MOV_TRACK_ENABLED 0x0001 | |
366 | MOV_TRACK_IN_MOVIE 0x0002 | |
367 | MOV_TRACK_IN_PREVIEW 0x0004 | |
368 | MOV_TRACK_IN_POSTER 0x0008 | |
369 | */ | |
370 | ||
371 | get_be32(pb); /* creation time */ | |
372 | get_be32(pb); /* modification time */ | |
373 | st->id = (int)get_be32(pb); /* track id (NOT 0 !)*/ | |
374 | get_be32(pb); /* reserved */ | |
375 | get_be32(pb); /* duration */ | |
376 | get_be32(pb); /* reserved */ | |
377 | get_be32(pb); /* reserved */ | |
378 | ||
379 | get_be16(pb); /* layer */ | |
380 | get_be16(pb); /* alternate group */ | |
381 | get_be16(pb); /* volume */ | |
382 | get_be16(pb); /* reserved */ | |
383 | ||
384 | url_fskip(pb, 36); /* display matrix */ | |
385 | ||
386 | /* those are fixed-point */ | |
387 | st->codec.width = get_be32(pb) >> 16; /* track width */ | |
388 | st->codec.height = get_be32(pb) >> 16; /* track height */ | |
389 | ||
390 | return 0; | |
391 | } | |
392 | ||
684f44d9 | 393 | static int parse_hdlr(const MOVParseTableEntry *parse_table, ByteIOContext *pb, UINT32 atom_type, INT64 atom_offset, INT64 atom_size, void *param) |
6cea494e ZK |
394 | { |
395 | MOVContext *c; | |
396 | int len; | |
c9a65ca8 | 397 | char *buf; |
6cea494e ZK |
398 | UINT32 type; |
399 | AVStream *st; | |
400 | UINT32 ctype; | |
401 | #ifdef DEBUG | |
402 | print_atom("hdlr", atom_type, atom_offset, atom_size); | |
403 | #endif | |
404 | c = (MOVContext *)param; | |
405 | st = c->fc->streams[c->fc->nb_streams-1]; | |
406 | ||
407 | get_byte(pb); /* version */ | |
408 | get_byte(pb); get_byte(pb); get_byte(pb); /* flags */ | |
409 | ||
410 | /* component type */ | |
411 | ctype = get_le32(pb); | |
412 | type = get_le32(pb); /* component subtype */ | |
413 | ||
414 | #ifdef DEBUG | |
684f44d9 | 415 | printf("ctype= %c%c%c%c (0x%08lx)\n", *((char *)&ctype), ((char *)&ctype)[1], ((char *)&ctype)[2], ((char *)&ctype)[3], (long) ctype); |
6cea494e ZK |
416 | printf("stype= %c%c%c%c\n", *((char *)&type), ((char *)&type)[1], ((char *)&type)[2], ((char *)&type)[3]); |
417 | #endif | |
418 | #ifdef DEBUG | |
419 | /* XXX: yeah this is ugly... */ | |
420 | if(ctype == MKTAG('m', 'h', 'l', 'r')) { /* MOV */ | |
421 | if(type == MKTAG('v', 'i', 'd', 'e')) | |
422 | puts("hdlr: vide"); | |
423 | else if(type == MKTAG('s', 'o', 'u', 'n')) | |
424 | puts("hdlr: soun"); | |
425 | } else if(ctype == 0) { /* MP4 */ | |
426 | if(type == MKTAG('v', 'i', 'd', 'e')) | |
427 | puts("hdlr: vide"); | |
428 | else if(type == MKTAG('s', 'o', 'u', 'n')) | |
429 | puts("hdlr: soun"); | |
430 | else if(type == MKTAG('o', 'd', 's', 'm')) | |
431 | puts("hdlr: odsm"); | |
432 | else if(type == MKTAG('s', 'd', 's', 'm')) | |
433 | puts("hdlr: sdsm"); | |
434 | } else puts("hdlr: meta"); | |
435 | #endif | |
436 | ||
437 | if(ctype == MKTAG('m', 'h', 'l', 'r')) { /* MOV */ | |
438 | if(type == MKTAG('v', 'i', 'd', 'e')) | |
439 | st->codec.codec_type = CODEC_TYPE_VIDEO; | |
440 | else if(type == MKTAG('s', 'o', 'u', 'n')) | |
441 | st->codec.codec_type = CODEC_TYPE_AUDIO; | |
442 | } else if(ctype == 0) { /* MP4 */ | |
443 | if(type == MKTAG('v', 'i', 'd', 'e')) | |
444 | st->codec.codec_type = CODEC_TYPE_VIDEO; | |
445 | else if(type == MKTAG('s', 'o', 'u', 'n')) | |
446 | st->codec.codec_type = CODEC_TYPE_AUDIO; | |
447 | } | |
448 | get_be32(pb); /* component manufacture */ | |
449 | get_be32(pb); /* component flags */ | |
450 | get_be32(pb); /* component flags mask */ | |
451 | ||
452 | if(atom_size <= 24) | |
453 | return 0; /* nothing left to read */ | |
454 | /* XXX: MP4 uses a C string, not a pascal one */ | |
455 | /* component name */ | |
c9a65ca8 FB |
456 | len = get_byte(pb); |
457 | /* XXX: use a better heuristic */ | |
458 | if(len < 32) { | |
459 | /* assume that it is a Pascal like string */ | |
460 | buf = av_malloc(len+1); | |
461 | get_buffer(pb, buf, len); | |
462 | buf[len] = '\0'; | |
6cea494e | 463 | #ifdef DEBUG |
c9a65ca8 | 464 | printf("**buf='%s'\n", buf); |
6cea494e | 465 | #endif |
c9a65ca8 | 466 | av_free(buf); |
6cea494e | 467 | } else { |
c9a65ca8 FB |
468 | /* MP4 string */ |
469 | for(;;) { | |
470 | if (len == 0) | |
471 | break; | |
472 | len = get_byte(pb); | |
6cea494e ZK |
473 | } |
474 | } | |
475 | ||
476 | return 0; | |
477 | } | |
478 | ||
684f44d9 | 479 | static int parse_stsd(const MOVParseTableEntry *parse_table, ByteIOContext *pb, UINT32 atom_type, INT64 atom_offset, INT64 atom_size, void *param) |
6cea494e ZK |
480 | { |
481 | MOVContext *c; | |
482 | int entries, size, samp_sz, frames_per_sample; | |
6cea494e ZK |
483 | UINT32 format; |
484 | AVStream *st; | |
485 | #ifdef DEBUG | |
486 | print_atom("stsd", atom_type, atom_offset, atom_size); | |
487 | #endif | |
488 | c = (MOVContext *)param; | |
489 | st = c->fc->streams[c->fc->nb_streams-1]; | |
490 | ||
491 | get_byte(pb); /* version */ | |
492 | get_byte(pb); get_byte(pb); get_byte(pb); /* flags */ | |
493 | ||
494 | ||
495 | entries = get_be32(pb); | |
496 | ||
497 | while(entries--) { | |
498 | size = get_be32(pb); /* size */ | |
499 | format = get_le32(pb); /* data format */ | |
500 | ||
501 | get_be32(pb); /* reserved */ | |
502 | get_be16(pb); /* reserved */ | |
503 | get_be16(pb); /* index */ | |
504 | /* if(format == MKTAG('m', 'p', '4', 'v')) */ | |
505 | /* st->codec.codec_type=CODEC_TYPE_VIDEO; *//* force things (XXX: was this for .mp4 ?) */ | |
506 | if(st->codec.codec_type==CODEC_TYPE_VIDEO) { | |
507 | st->codec.codec_tag = format; | |
508 | st->codec.codec_id = codec_get_id(mov_video_tags, format); | |
509 | get_be16(pb); /* version */ | |
510 | get_be16(pb); /* revision level */ | |
511 | get_be32(pb); /* vendor */ | |
512 | get_be32(pb); /* temporal quality */ | |
513 | get_be32(pb); /* spacial quality */ | |
514 | st->codec.width = get_be16(pb); /* width */ | |
515 | st->codec.height = get_be16(pb); /* height */ | |
516 | get_be32(pb); /* horiz resolution */ | |
517 | get_be32(pb); /* vert resolution */ | |
518 | get_be32(pb); /* data size, always 0 */ | |
519 | frames_per_sample = get_be16(pb); /* frame per samples */ | |
520 | #ifdef DEBUG | |
684f44d9 | 521 | printf("frames/samples = %d\n", frames_per_sample); |
6cea494e ZK |
522 | #endif |
523 | url_fskip(pb, 32); /* codec name */ | |
524 | ||
525 | get_be16(pb); /* depth */ | |
526 | get_be16(pb); /* colortable id */ | |
527 | get_be16(pb); /* */ | |
528 | get_be16(pb); /* */ | |
529 | ||
530 | st->codec.sample_rate = 25 * FRAME_RATE_BASE; | |
531 | ||
532 | if(size > 16) | |
533 | url_fskip(pb, size-(16+24+18+32)); | |
534 | } else { | |
535 | st->codec.codec_tag = format; | |
536 | ||
537 | get_be16(pb); /* version */ | |
538 | get_be16(pb); /* revision level */ | |
539 | get_be32(pb); /* vendor */ | |
540 | ||
541 | st->codec.channels = get_be16(pb);/* channel count */ | |
542 | samp_sz = get_be16(pb); /* sample size */ | |
543 | #ifdef DEBUG | |
544 | if(samp_sz != 16) | |
545 | puts("!!! stsd: audio sample size is not 16 bit !"); | |
546 | #endif | |
547 | st->codec.codec_id = codec_get_id(mov_audio_tags, format); | |
548 | /* handle specific s8 codec */ | |
549 | if (st->codec.codec_id == CODEC_ID_PCM_S16BE && samp_sz == 8) | |
550 | st->codec.codec_id = CODEC_ID_PCM_S8; | |
551 | ||
552 | get_be16(pb); /* compression id = 0*/ | |
553 | get_be16(pb); /* packet size = 0 */ | |
554 | ||
555 | st->codec.sample_rate = ((get_be32(pb) >> 16)); | |
556 | st->codec.bit_rate = 0; | |
557 | ||
558 | /* this is for .mp4 files */ | |
559 | if(format == MKTAG('m', 'p', '4', 'v')) { /* XXX */ | |
560 | st->codec.codec_type=CODEC_TYPE_VIDEO; /* force things */ | |
561 | st->codec.codec_id = CODEC_ID_MPEG4; | |
562 | st->codec.frame_rate = 25; | |
563 | st->codec.bit_rate = 100000; | |
564 | } | |
565 | ||
566 | #if 0 | |
567 | ||
568 | get_be16(pb); get_be16(pb); /* */ | |
569 | get_be16(pb); /* */ | |
570 | get_be16(pb); /* */ | |
571 | get_be16(pb); /* */ | |
572 | get_be16(pb); /* */ | |
573 | #endif | |
574 | if(size > 16) | |
575 | url_fskip(pb, size-(16+20)); | |
576 | } | |
577 | #ifdef DEBUG | |
578 | printf("4CC= %c%c%c%c\n", *((char *)&format), ((char *)&format)[1], ((char *)&format)[2], ((char *)&format)[3]); | |
579 | #endif | |
580 | } | |
581 | /* | |
582 | if(len) { | |
1ea4f593 | 583 | buf = av_malloc(len+1); |
6cea494e ZK |
584 | get_buffer(pb, buf, len); |
585 | buf[len] = '\0'; | |
586 | puts(buf); | |
1ea4f593 | 587 | av_free(buf); |
6cea494e ZK |
588 | } |
589 | */ | |
590 | return 0; | |
591 | } | |
592 | ||
684f44d9 | 593 | static int parse_stco(const MOVParseTableEntry *parse_table, ByteIOContext *pb, UINT32 atom_type, INT64 atom_offset, INT64 atom_size, void *param) |
6cea494e ZK |
594 | { |
595 | MOVContext *c; | |
596 | int entries, i; | |
597 | AVStream *st; | |
598 | MOVStreamContext *sc; | |
599 | #ifdef DEBUG | |
600 | print_atom("stco", atom_type, atom_offset, atom_size); | |
601 | #endif | |
602 | c = (MOVContext *)param; | |
603 | st = c->fc->streams[c->fc->nb_streams-1]; | |
604 | sc = (MOVStreamContext *)st->priv_data; | |
605 | ||
606 | get_byte(pb); /* version */ | |
607 | get_byte(pb); get_byte(pb); get_byte(pb); /* flags */ | |
608 | ||
609 | entries = get_be32(pb); | |
610 | sc->chunk_count = entries; | |
1ea4f593 | 611 | sc->chunk_offsets = av_malloc(entries * sizeof(INT64)); |
6cea494e ZK |
612 | if(atom_type == MKTAG('s', 't', 'c', 'o')) { |
613 | for(i=0; i<entries; i++) { | |
614 | sc->chunk_offsets[i] = get_be32(pb); | |
615 | /*printf("chunk offset=%ld\n", sc->chunk_offsets[i]);*/ | |
616 | } | |
617 | } else if(atom_type == MKTAG('c', 'o', '6', '4')) { | |
618 | for(i=0; i<entries; i++) { | |
619 | sc->chunk_offsets[i] = get_be64(pb); | |
620 | /*printf("chunk offset=%ld\n", sc->chunk_offsets[i]);*/ | |
621 | } | |
622 | } else | |
623 | return -1; | |
624 | return 0; | |
625 | } | |
626 | ||
684f44d9 | 627 | static int parse_stsc(const MOVParseTableEntry *parse_table, ByteIOContext *pb, UINT32 atom_type, INT64 atom_offset, INT64 atom_size, void *param) |
6cea494e ZK |
628 | { |
629 | MOVContext *c; | |
630 | int entries, i; | |
631 | AVStream *st; | |
632 | MOVStreamContext *sc; | |
633 | #ifdef DEBUG | |
634 | print_atom("stsc", atom_type, atom_offset, atom_size); | |
635 | #endif | |
636 | c = (MOVContext *)param; | |
637 | st = c->fc->streams[c->fc->nb_streams-1]; | |
638 | sc = (MOVStreamContext *)st->priv_data; | |
639 | ||
640 | get_byte(pb); /* version */ | |
641 | get_byte(pb); get_byte(pb); get_byte(pb); /* flags */ | |
642 | ||
643 | entries = get_be32(pb); | |
644 | sc->sample_to_chunk_sz = entries; | |
1ea4f593 | 645 | sc->sample_to_chunk = av_malloc(entries * sizeof(MOV_sample_to_chunk_tbl)); |
6cea494e ZK |
646 | for(i=0; i<entries; i++) { |
647 | sc->sample_to_chunk[i].first = get_be32(pb); | |
648 | sc->sample_to_chunk[i].count = get_be32(pb); | |
649 | sc->sample_to_chunk[i].id = get_be32(pb); | |
650 | #ifdef DEBUG | |
651 | /* printf("sample_to_chunk first=%ld count=%ld, id=%ld\n", sc->sample_to_chunk[i].first, sc->sample_to_chunk[i].count, sc->sample_to_chunk[i].id); */ | |
652 | #endif | |
653 | } | |
654 | return 0; | |
655 | } | |
656 | ||
684f44d9 | 657 | static int parse_stsz(const MOVParseTableEntry *parse_table, ByteIOContext *pb, UINT32 atom_type, INT64 atom_offset, INT64 atom_size, void *param) |
6cea494e ZK |
658 | { |
659 | MOVContext *c; | |
660 | int entries, i; | |
661 | AVStream *st; | |
662 | MOVStreamContext *sc; | |
663 | #ifdef DEBUG | |
664 | print_atom("stsz", atom_type, atom_offset, atom_size); | |
665 | #endif | |
666 | c = (MOVContext *)param; | |
667 | st = c->fc->streams[c->fc->nb_streams-1]; | |
668 | sc = (MOVStreamContext *)st->priv_data; | |
669 | ||
670 | get_byte(pb); /* version */ | |
671 | get_byte(pb); get_byte(pb); get_byte(pb); /* flags */ | |
672 | ||
673 | sc->sample_size = get_be32(pb); | |
674 | entries = get_be32(pb); | |
675 | sc->sample_count = entries; | |
676 | printf("sample_size = %ld sample_count = %ld\n", sc->sample_size, sc->sample_count); | |
677 | if(sc->sample_size) | |
678 | return 0; /* there isn't any table following */ | |
1ea4f593 | 679 | sc->sample_sizes = av_malloc(entries * sizeof(long)); |
6cea494e ZK |
680 | for(i=0; i<entries; i++) { |
681 | sc->sample_sizes[i] = get_be32(pb); | |
682 | #ifdef DEBUG | |
683 | /* printf("sample_sizes[]=%ld\n", sc->sample_sizes[i]); */ | |
684 | #endif | |
685 | } | |
686 | return 0; | |
687 | } | |
688 | ||
689 | static const MOVParseTableEntry mov_default_parse_table[] = { | |
690 | /* mp4 atoms */ | |
691 | { MKTAG( 'm', 'p', '4', 'a' ), parse_default }, | |
692 | { MKTAG( 'c', 'o', '6', '4' ), parse_stco }, | |
693 | { MKTAG( 's', 't', 'c', 'o' ), parse_stco }, | |
694 | { MKTAG( 'c', 'r', 'h', 'd' ), parse_default }, | |
695 | { MKTAG( 'c', 't', 't', 's' ), parse_leaf }, | |
696 | { MKTAG( 'c', 'p', 'r', 't' ), parse_default }, | |
697 | { MKTAG( 'u', 'r', 'l', ' ' ), parse_leaf }, | |
698 | { MKTAG( 'u', 'r', 'n', ' ' ), parse_leaf }, | |
699 | { MKTAG( 'd', 'i', 'n', 'f' ), parse_default }, | |
700 | { MKTAG( 'd', 'r', 'e', 'f' ), parse_leaf }, | |
701 | { MKTAG( 's', 't', 'd', 'p' ), parse_default }, | |
702 | { MKTAG( 'e', 's', 'd', 's' ), parse_default }, | |
703 | { MKTAG( 'e', 'd', 't', 's' ), parse_default }, | |
704 | { MKTAG( 'e', 'l', 's', 't' ), parse_leaf }, | |
705 | { MKTAG( 'u', 'u', 'i', 'd' ), parse_default }, | |
706 | { MKTAG( 'f', 'r', 'e', 'e' ), parse_leaf }, | |
707 | { MKTAG( 'h', 'd', 'l', 'r' ), parse_hdlr }, | |
708 | { MKTAG( 'h', 'm', 'h', 'd' ), parse_default }, | |
709 | { MKTAG( 'h', 'i', 'n', 't' ), parse_leaf }, | |
710 | { MKTAG( 'n', 'm', 'h', 'd' ), parse_leaf }, | |
711 | { MKTAG( 'm', 'p', '4', 's' ), parse_default }, | |
712 | { MKTAG( 'm', 'd', 'i', 'a' ), parse_default }, | |
713 | { MKTAG( 'm', 'd', 'a', 't' ), parse_mdat }, | |
714 | { MKTAG( 'm', 'd', 'h', 'd' ), parse_leaf }, | |
715 | { MKTAG( 'm', 'i', 'n', 'f' ), parse_default }, | |
716 | { MKTAG( 'm', 'o', 'o', 'v' ), parse_moov }, | |
717 | { MKTAG( 'm', 'v', 'h', 'd' ), parse_mvhd }, | |
718 | { MKTAG( 'i', 'o', 'd', 's' ), parse_leaf }, | |
719 | { MKTAG( 'o', 'd', 'h', 'd' ), parse_default }, | |
720 | { MKTAG( 'm', 'p', 'o', 'd' ), parse_leaf }, | |
721 | { MKTAG( 's', 't', 's', 'd' ), parse_stsd }, | |
722 | { MKTAG( 's', 't', 's', 'z' ), parse_stsz }, | |
723 | { MKTAG( 's', 't', 'b', 'l' ), parse_default }, | |
724 | { MKTAG( 's', 't', 's', 'c' ), parse_stsc }, | |
725 | { MKTAG( 's', 'd', 'h', 'd' ), parse_default }, | |
726 | { MKTAG( 's', 't', 's', 'h' ), parse_default }, | |
727 | { MKTAG( 's', 'k', 'i', 'p' ), parse_default }, | |
728 | { MKTAG( 's', 'm', 'h', 'd' ), parse_leaf }, | |
729 | { MKTAG( 'd', 'p', 'n', 'd' ), parse_leaf }, | |
730 | { MKTAG( 's', 't', 's', 's' ), parse_leaf }, | |
731 | { MKTAG( 's', 't', 't', 's' ), parse_leaf }, | |
732 | { MKTAG( 't', 'r', 'a', 'k' ), parse_trak }, | |
733 | { MKTAG( 't', 'k', 'h', 'd' ), parse_tkhd }, | |
734 | { MKTAG( 't', 'r', 'e', 'f' ), parse_default }, /* not really */ | |
735 | { MKTAG( 'u', 'd', 't', 'a' ), parse_leaf }, | |
736 | { MKTAG( 'v', 'm', 'h', 'd' ), parse_leaf }, | |
737 | { MKTAG( 'm', 'p', '4', 'v' ), parse_default }, | |
738 | /* extra mp4 */ | |
739 | { MKTAG( 'M', 'D', 'E', 'S' ), parse_leaf }, | |
740 | /* QT atoms */ | |
741 | { MKTAG( 'c', 'h', 'a', 'p' ), parse_leaf }, | |
742 | { MKTAG( 'c', 'l', 'i', 'p' ), parse_default }, | |
743 | { MKTAG( 'c', 'r', 'g', 'n' ), parse_leaf }, | |
744 | { MKTAG( 'k', 'm', 'a', 't' ), parse_leaf }, | |
745 | { MKTAG( 'm', 'a', 't', 't' ), parse_default }, | |
746 | { MKTAG( 'r', 'd', 'r', 'f' ), parse_leaf }, | |
747 | { MKTAG( 'r', 'm', 'd', 'a' ), parse_default }, | |
748 | { MKTAG( 'r', 'm', 'd', 'r' ), parse_leaf }, | |
749 | //{ MKTAG( 'r', 'm', 'q', 'u' ), parse_leaf }, | |
750 | { MKTAG( 'r', 'm', 'r', 'a' ), parse_default }, | |
751 | { MKTAG( 's', 'c', 'p', 't' ), parse_leaf }, | |
752 | { MKTAG( 's', 'y', 'n', 'c' ), parse_leaf }, | |
753 | { MKTAG( 's', 's', 'r', 'c' ), parse_leaf }, | |
754 | { MKTAG( 't', 'c', 'm', 'd' ), parse_leaf }, | |
755 | { MKTAG( 'w', 'i', 'd', 'e' ), parse_leaf }, /* place holder */ | |
756 | { 0L, parse_leaf } | |
757 | }; | |
758 | ||
759 | static void mov_free_stream_context(MOVStreamContext *sc) | |
760 | { | |
761 | if(sc) { | |
1ea4f593 FB |
762 | av_free(sc->chunk_offsets); |
763 | av_free(sc->sample_to_chunk); | |
764 | av_free(sc); | |
6cea494e ZK |
765 | } |
766 | } | |
767 | ||
c9a65ca8 FB |
768 | /* XXX: is it suffisant ? */ |
769 | static int mov_probe(AVProbeData *p) | |
770 | { | |
771 | /* check file header */ | |
772 | if (p->buf_size <= 12) | |
773 | return 0; | |
774 | if ((p->buf[4] == 'm' && p->buf[5] == 'o' && | |
775 | p->buf[6] == 'o' && p->buf[7] == 'v') || | |
776 | (p->buf[4] == 'm' && p->buf[5] == 'd' && | |
777 | p->buf[6] == 'a' && p->buf[7] == 't')) | |
778 | return AVPROBE_SCORE_MAX; | |
779 | else | |
780 | return 0; | |
781 | } | |
782 | ||
a266644f | 783 | static int mov_read_header(AVFormatContext *s, AVFormatParameters *ap) |
6cea494e | 784 | { |
c9a65ca8 | 785 | MOVContext *mov = s->priv_data; |
6cea494e | 786 | ByteIOContext *pb = &s->pb; |
684f44d9 | 787 | int i, j, nb, err; |
6cea494e | 788 | INT64 size; |
6cea494e | 789 | |
6cea494e | 790 | mov->fc = s; |
c9a65ca8 FB |
791 | #if 0 |
792 | /* XXX: I think we should auto detect */ | |
793 | if(s->iformat->name[1] == 'p') | |
6cea494e | 794 | mov->mp4 = 1; |
c9a65ca8 | 795 | #endif |
6cea494e ZK |
796 | if(!url_is_streamed(pb)) /* .mov and .mp4 aren't streamable anyway (only progressive download if moov is before mdat) */ |
797 | size = url_filesize(url_fileno(pb)); | |
798 | else | |
799 | size = 0x7FFFFFFFFFFFFFFF; | |
800 | ||
801 | #ifdef DEBUG | |
684f44d9 | 802 | printf("filesz=%Ld\n", size); |
6cea494e ZK |
803 | #endif |
804 | ||
805 | /* check MOV header */ | |
806 | err = parse_default(mov_default_parse_table, pb, 0L, 0LL, size, mov); | |
807 | if(err<0 || (!mov->found_moov || !mov->found_mdat)) { | |
808 | puts("header not found !!!"); | |
809 | exit(1); | |
810 | } | |
811 | #ifdef DEBUG | |
684f44d9 | 812 | printf("on_parse_exit_offset=%d\n", (int) url_ftell(pb)); |
6cea494e ZK |
813 | #endif |
814 | /* some cleanup : make sure we are on the mdat atom */ | |
815 | if(!url_is_streamed(pb) && (url_ftell(pb) != mov->mdat_offset)) | |
816 | url_fseek(pb, mov->mdat_offset, SEEK_SET); | |
817 | ||
818 | mov->next_chunk_offset = mov->mdat_offset; /* initialise reading */ | |
819 | ||
820 | #ifdef DEBUG | |
684f44d9 | 821 | printf("mdat_reset_offset=%d\n", (int) url_ftell(pb)); |
6cea494e ZK |
822 | #endif |
823 | ||
824 | #ifdef DEBUG | |
684f44d9 | 825 | printf("streams= %d\n", s->nb_streams); |
6cea494e ZK |
826 | #endif |
827 | mov->total_streams = nb = s->nb_streams; | |
828 | ||
829 | #if 1 | |
830 | for(i=0; i<s->nb_streams;) { | |
831 | if(s->streams[i]->codec.codec_type == CODEC_TYPE_MOV_OTHER) {/* not audio, not video, delete */ | |
1ea4f593 | 832 | av_free(s->streams[i]); |
6cea494e ZK |
833 | for(j=i+1; j<s->nb_streams; j++) |
834 | s->streams[j-1] = s->streams[j]; | |
835 | s->nb_streams--; | |
836 | } else | |
837 | i++; | |
838 | } | |
839 | for(i=0; i<s->nb_streams;i++) { | |
840 | MOVStreamContext *sc; | |
841 | sc = (MOVStreamContext *)s->streams[i]->priv_data; | |
842 | sc->ffindex = i; | |
843 | sc->is_ff_stream = 1; | |
844 | } | |
845 | #endif | |
846 | #ifdef DEBUG | |
684f44d9 | 847 | printf("real streams= %d\n", s->nb_streams); |
6cea494e ZK |
848 | #endif |
849 | return 0; | |
850 | } | |
851 | ||
852 | /* Yes, this is ugly... I didn't write the specs of QT :p */ | |
853 | /* XXX:remove useless commented code sometime */ | |
a266644f | 854 | static int mov_read_packet(AVFormatContext *s, AVPacket *pkt) |
6cea494e ZK |
855 | { |
856 | MOVContext *mov = s->priv_data; | |
857 | INT64 offset = 0x0FFFFFFFFFFFFFFF; | |
684f44d9 | 858 | int i; |
6cea494e ZK |
859 | int st_id = 0, size; |
860 | size = 0x0FFFFFFF; | |
861 | ||
862 | again: | |
863 | for(i=0; i<mov->total_streams; i++) { | |
864 | /* printf("%8ld ", mov->streams[i]->chunk_offsets[mov->streams[i]->next_chunk]); */ | |
865 | if((mov->streams[i]->next_chunk < mov->streams[i]->chunk_count) | |
866 | && (mov->streams[i]->chunk_offsets[mov->streams[i]->next_chunk] < offset)) { | |
867 | /* printf("y"); */ | |
868 | st_id = i; | |
869 | offset = mov->streams[i]->chunk_offsets[mov->streams[i]->next_chunk]; | |
870 | } | |
871 | /* else printf("n"); */ | |
872 | } | |
873 | mov->streams[st_id]->next_chunk++; | |
874 | if(offset==0x0FFFFFFFFFFFFFFF) | |
875 | return -1; | |
876 | ||
877 | if(mov->next_chunk_offset < offset) /* some meta data */ | |
878 | url_fskip(&s->pb, (offset - mov->next_chunk_offset)); | |
879 | if(!mov->streams[st_id]->is_ff_stream) { | |
880 | url_fskip(&s->pb, (offset - mov->next_chunk_offset)); | |
881 | offset = 0x0FFFFFFFFFFFFFFF; | |
882 | /* puts("*"); */ | |
883 | goto again; | |
884 | } | |
885 | /* printf("\nchunk offset = %ld\n", offset); */ | |
886 | ||
887 | /* now get the chunk size... */ | |
888 | ||
889 | for(i=0; i<mov->total_streams; i++) { | |
890 | /* printf("%ld ", mov->streams[i]->chunk_offsets[mov->streams[i]->next_chunk] - offset); */ | |
891 | if((mov->streams[i]->next_chunk < mov->streams[i]->chunk_count) | |
892 | && ((mov->streams[i]->chunk_offsets[mov->streams[i]->next_chunk] - offset) < size)) { | |
893 | /* printf("y"); */ | |
894 | size = mov->streams[i]->chunk_offsets[mov->streams[i]->next_chunk] - offset; | |
895 | } | |
896 | /* else printf("n"); */ | |
897 | } | |
898 | /* printf("\nchunk size = %ld\n", size); */ | |
899 | if(size == 0x0FFFFFFF) | |
900 | size = mov->mdat_size + mov->mdat_offset - offset; | |
901 | if(size < 0) | |
902 | return -1; | |
903 | if(size == 0) | |
904 | return -1; | |
905 | av_new_packet(pkt, size); | |
906 | pkt->stream_index = mov->streams[st_id]->ffindex; | |
907 | ||
908 | get_buffer(&s->pb, pkt->data, pkt->size); | |
909 | ||
910 | #ifdef DEBUG | |
911 | /* | |
912 | printf("Packet (%d, %d, %ld) ", pkt->stream_index, st_id, pkt->size); | |
913 | for(i=0; i<8; i++) | |
914 | printf("%02x ", pkt->data[i]); | |
915 | for(i=0; i<8; i++) | |
916 | printf("%c ", (pkt->data[i]) & 0x7F); | |
917 | puts(""); | |
918 | */ | |
919 | #endif | |
920 | ||
921 | mov->next_chunk_offset = offset + size; | |
922 | ||
923 | return 0; | |
924 | } | |
925 | ||
a266644f | 926 | static int mov_read_close(AVFormatContext *s) |
6cea494e ZK |
927 | { |
928 | int i; | |
929 | MOVContext *mov = s->priv_data; | |
930 | for(i=0; i<mov->total_streams; i++) | |
931 | mov_free_stream_context(mov->streams[i]); | |
932 | for(i=0; i<s->nb_streams; i++) | |
1ea4f593 | 933 | av_free(s->streams[i]); |
6cea494e ZK |
934 | return 0; |
935 | } | |
936 | ||
c9a65ca8 | 937 | static AVInputFormat mov_iformat = { |
6cea494e | 938 | "mov", |
c9a65ca8 FB |
939 | "QuickTime/MPEG4 format", |
940 | sizeof(MOVContext), | |
941 | mov_probe, | |
6cea494e ZK |
942 | mov_read_header, |
943 | mov_read_packet, | |
944 | mov_read_close, | |
945 | }; | |
946 | ||
c9a65ca8 FB |
947 | int mov_init(void) |
948 | { | |
949 | av_register_input_format(&mov_iformat); | |
950 | return 0; | |
951 | } |