Commit | Line | Data |
---|---|---|
6cea494e | 1 | /* |
7fbde343 | 2 | * MOV demuxer |
19720f15 | 3 | * Copyright (c) 2001 Fabrice Bellard. |
6cea494e | 4 | * |
b78e7197 DB |
5 | * This file is part of FFmpeg. |
6 | * | |
7 | * FFmpeg is free software; you can redistribute it and/or | |
19720f15 FB |
8 | * modify it under the terms of the GNU Lesser General Public |
9 | * License as published by the Free Software Foundation; either | |
b78e7197 | 10 | * version 2.1 of the License, or (at your option) any later version. |
6cea494e | 11 | * |
b78e7197 | 12 | * FFmpeg is distributed in the hope that it will be useful, |
6cea494e | 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
19720f15 FB |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
15 | * Lesser General Public License for more details. | |
6cea494e | 16 | * |
19720f15 | 17 | * You should have received a copy of the GNU Lesser General Public |
b78e7197 | 18 | * License along with FFmpeg; if not, write to the Free Software |
5509bffa | 19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
6cea494e | 20 | */ |
d957696f MN |
21 | |
22 | #include <limits.h> | |
115329f1 | 23 | |
bfc2a19d | 24 | //#define DEBUG |
4e5ef14f | 25 | |
6cea494e | 26 | #include "avformat.h" |
9d9f4119 | 27 | #include "riff.h" |
e40ee6a2 | 28 | #include "isom.h" |
b60c0454 | 29 | #include "dv.h" |
6cea494e | 30 | |
0147f198 FR |
31 | #ifdef CONFIG_ZLIB |
32 | #include <zlib.h> | |
33 | #endif | |
34 | ||
6cea494e ZK |
35 | /* |
36 | * First version by Francois Revol revol@free.fr | |
115329f1 | 37 | * Seek function by Gael Chardon gael.dev@4now.net |
5ca1d879 | 38 | * |
6cea494e | 39 | * Features and limitations: |
5ca1d879 | 40 | * - reads most of the QT files I have (at least the structure), |
6cea494e | 41 | * Sample QuickTime files with mp3 audio can be found at: http://www.3ivx.com/showcase.html |
6cea494e | 42 | * - the code is quite ugly... maybe I won't do it recursive next time :-) |
5ca1d879 | 43 | * |
6cea494e ZK |
44 | * Funny I didn't know about http://sourceforge.net/projects/qt-ffmpeg/ |
45 | * when coding this :) (it's a writer anyway) | |
5ca1d879 | 46 | * |
6cea494e ZK |
47 | * Reference documents: |
48 | * http://www.geocities.com/xhelmboyx/quicktime/formats/qtm-layout.txt | |
49 | * Apple: | |
baf25c9d | 50 | * http://developer.apple.com/documentation/QuickTime/QTFF/ |
15c8dbe7 | 51 | * http://developer.apple.com/documentation/QuickTime/QTFF/qtff.pdf |
6cea494e ZK |
52 | * QuickTime is a trademark of Apple (AFAIK :)) |
53 | */ | |
54 | ||
b595afaa MM |
55 | #include "qtpalette.h" |
56 | ||
baf25c9d | 57 | |
cd7352d5 MN |
58 | #undef NDEBUG |
59 | #include <assert.h> | |
60 | ||
6cea494e ZK |
61 | /* the QuickTime file format is quite convoluted... |
62 | * it has lots of index tables, each indexing something in another one... | |
63 | * Here we just use what is needed to read the chunks | |
64 | */ | |
65 | ||
e23848a4 | 66 | typedef struct { |
1c02d96f BC |
67 | int first; |
68 | int count; | |
69 | int id; | |
e23848a4 | 70 | } MOV_stsc_t; |
6cea494e | 71 | |
5cd62665 | 72 | typedef struct { |
5ca1d879 ZK |
73 | uint32_t type; |
74 | int64_t offset; | |
75 | int64_t size; /* total size (excluding the size and type fields) */ | |
76 | } MOV_atom_t; | |
77 | ||
b6a17df4 ZK |
78 | struct MOVParseTableEntry; |
79 | ||
6cea494e ZK |
80 | typedef struct MOVStreamContext { |
81 | int ffindex; /* the ffmpeg stream id */ | |
1c02d96f | 82 | int next_chunk; |
44d3fea5 | 83 | unsigned int chunk_count; |
0c1a9eda | 84 | int64_t *chunk_offsets; |
44d3fea5 | 85 | unsigned int stts_count; |
e23848a4 | 86 | MOV_stts_t *stts_data; |
44d3fea5 | 87 | unsigned int ctts_count; |
e23848a4 | 88 | MOV_stts_t *ctts_data; |
44d3fea5 BC |
89 | unsigned int edit_count; /* number of 'edit' (elst atom) */ |
90 | unsigned int sample_to_chunk_sz; | |
e23848a4 | 91 | MOV_stsc_t *sample_to_chunk; |
c4ac052b MN |
92 | int sample_to_ctime_index; |
93 | int sample_to_ctime_sample; | |
44d3fea5 BC |
94 | unsigned int sample_size; |
95 | unsigned int sample_count; | |
1c02d96f | 96 | int *sample_sizes; |
44d3fea5 | 97 | unsigned int keyframe_count; |
1c02d96f | 98 | int *keyframes; |
5cd62665 | 99 | int time_scale; |
cd7352d5 | 100 | int time_rate; |
1c02d96f | 101 | int current_sample; |
e14f79ed BC |
102 | unsigned int bytes_per_frame; |
103 | unsigned int samples_per_frame; | |
b60c0454 | 104 | int dv_audio_container; |
ee6e2dbe | 105 | int pseudo_stream_id; |
77c75437 | 106 | int16_t audio_cid; ///< stsd audio compression id |
6cea494e ZK |
107 | } MOVStreamContext; |
108 | ||
109 | typedef struct MOVContext { | |
6cea494e | 110 | AVFormatContext *fc; |
5cd62665 | 111 | int time_scale; |
7e815047 | 112 | int64_t duration; /* duration of the longest track */ |
6cea494e ZK |
113 | int found_moov; /* when both 'moov' and 'mdat' sections has been found */ |
114 | int found_mdat; /* we suppose we have enough data to read the file */ | |
b595afaa | 115 | AVPaletteControl palette_control; |
b60c0454 BC |
116 | DVDemuxContext *dv_demux; |
117 | AVFormatContext *dv_fctx; | |
152e9a43 | 118 | int isom; /* 1 if file is ISO Media (mp4/3gp) */ |
6cea494e ZK |
119 | } MOVContext; |
120 | ||
121 | ||
6cea494e ZK |
122 | /* XXX: it's the first time I make a recursive parser I think... sorry if it's ugly :P */ |
123 | ||
124 | /* those functions parse an atom */ | |
125 | /* return code: | |
126 | 1: found what I wanted, exit | |
127 | 0: continue to parse next atom | |
128 | -1: error occured, exit | |
129 | */ | |
6cea494e ZK |
130 | /* links atom IDs to parse functions */ |
131 | typedef struct MOVParseTableEntry { | |
0c1a9eda | 132 | uint32_t type; |
03dc32f6 | 133 | int (*parse)(MOVContext *ctx, ByteIOContext *pb, MOV_atom_t atom); |
6cea494e ZK |
134 | } MOVParseTableEntry; |
135 | ||
73d07c27 BC |
136 | static const MOVParseTableEntry mov_default_parse_table[]; |
137 | ||
5ca1d879 | 138 | static int mov_read_default(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) |
6cea494e | 139 | { |
b6a17df4 | 140 | int64_t total_size = 0; |
5ca1d879 | 141 | MOV_atom_t a; |
6cea494e ZK |
142 | int i; |
143 | int err = 0; | |
5ca1d879 | 144 | |
5ca1d879 | 145 | a.offset = atom.offset; |
6cea494e | 146 | |
9ed83b0a | 147 | if (atom.size < 0) |
fa22ca22 | 148 | atom.size = INT64_MAX; |
5ca1d879 | 149 | while(((total_size + 8) < atom.size) && !url_feof(pb) && !err) { |
bb270c08 | 150 | a.size = atom.size; |
bcfe2ba0 | 151 | a.type=0; |
5ca1d879 | 152 | if(atom.size >= 8) { |
bb270c08 | 153 | a.size = get_be32(pb); |
5ca1d879 | 154 | a.type = get_le32(pb); |
6cea494e | 155 | } |
bb270c08 | 156 | total_size += 8; |
5ca1d879 | 157 | a.offset += 8; |
29c90869 BC |
158 | dprintf(c->fc, "type: %08x %.4s sz: %"PRIx64" %"PRIx64" %"PRIx64"\n", |
159 | a.type, (char*)&a.type, a.size, atom.size, total_size); | |
5ca1d879 | 160 | if (a.size == 1) { /* 64 bit extended size */ |
bb270c08 | 161 | a.size = get_be64(pb) - 8; |
5ca1d879 ZK |
162 | a.offset += 8; |
163 | total_size += 8; | |
6cea494e | 164 | } |
bb270c08 DB |
165 | if (a.size == 0) { |
166 | a.size = atom.size - total_size; | |
167 | if (a.size <= 8) | |
5cd62665 | 168 | break; |
bb270c08 | 169 | } |
bb270c08 | 170 | a.size -= 8; |
8622613d | 171 | if(a.size < 0) |
568e18b1 | 172 | break; |
3d2308b0 | 173 | a.size = FFMIN(a.size, atom.size - total_size); |
115329f1 | 174 | |
bcfe2ba0 | 175 | for (i = 0; mov_default_parse_table[i].type != 0 |
73d07c27 | 176 | && mov_default_parse_table[i].type != a.type; i++) |
11979c46 BC |
177 | /* empty */; |
178 | ||
73d07c27 | 179 | if (mov_default_parse_table[i].type == 0) { /* skip leaf atoms data */ |
5ca1d879 | 180 | url_fskip(pb, a.size); |
bb270c08 | 181 | } else { |
5c72cad8 BC |
182 | offset_t start_pos = url_ftell(pb); |
183 | int64_t left; | |
03dc32f6 | 184 | err = mov_default_parse_table[i].parse(c, pb, a); |
687f35f3 BC |
185 | if (c->found_moov && c->found_mdat) |
186 | break; | |
5c72cad8 BC |
187 | left = a.size - url_ftell(pb) + start_pos; |
188 | if (left > 0) /* skip garbage at atom end */ | |
189 | url_fskip(pb, left); | |
bb270c08 | 190 | } |
6cea494e | 191 | |
bb270c08 | 192 | a.offset += a.size; |
5ca1d879 | 193 | total_size += a.size; |
6cea494e ZK |
194 | } |
195 | ||
5ca1d879 | 196 | if (!err && total_size < atom.size && atom.size < 0x7ffff) { |
5ca1d879 | 197 | url_fskip(pb, atom.size - total_size); |
5cd62665 ZK |
198 | } |
199 | ||
6cea494e ZK |
200 | return err; |
201 | } | |
202 | ||
5ca1d879 | 203 | static int mov_read_hdlr(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) |
6cea494e | 204 | { |
5ca1d879 | 205 | AVStream *st = c->fc->streams[c->fc->nb_streams-1]; |
0c1a9eda | 206 | uint32_t type; |
0c1a9eda | 207 | uint32_t ctype; |
b6a17df4 | 208 | |
6cea494e ZK |
209 | get_byte(pb); /* version */ |
210 | get_byte(pb); get_byte(pb); get_byte(pb); /* flags */ | |
211 | ||
212 | /* component type */ | |
213 | ctype = get_le32(pb); | |
214 | type = get_le32(pb); /* component subtype */ | |
215 | ||
29c90869 BC |
216 | dprintf(c->fc, "ctype= %c%c%c%c (0x%08x)\n", *((char *)&ctype), ((char *)&ctype)[1], |
217 | ((char *)&ctype)[2], ((char *)&ctype)[3], (int) ctype); | |
218 | dprintf(c->fc, "stype= %c%c%c%c\n", | |
219 | *((char *)&type), ((char *)&type)[1], ((char *)&type)[2], ((char *)&type)[3]); | |
152e9a43 BC |
220 | if(!ctype) |
221 | c->isom = 1; | |
73920f07 BC |
222 | if(type == MKTAG('v', 'i', 'd', 'e')) |
223 | st->codec->codec_type = CODEC_TYPE_VIDEO; | |
224 | else if(type == MKTAG('s', 'o', 'u', 'n')) | |
225 | st->codec->codec_type = CODEC_TYPE_AUDIO; | |
95a07973 BC |
226 | else if(type == MKTAG('m', '1', 'a', ' ')) |
227 | st->codec->codec_id = CODEC_ID_MP2; | |
8cb97693 BC |
228 | else if(type == MKTAG('s', 'u', 'b', 'p')) { |
229 | st->codec->codec_type = CODEC_TYPE_SUBTITLE; | |
8cb97693 | 230 | } |
6cea494e ZK |
231 | get_be32(pb); /* component manufacture */ |
232 | get_be32(pb); /* component flags */ | |
233 | get_be32(pb); /* component flags mask */ | |
234 | ||
5ca1d879 | 235 | if(atom.size <= 24) |
6cea494e | 236 | return 0; /* nothing left to read */ |
5cd62665 | 237 | |
3c13647a | 238 | url_fskip(pb, atom.size - (url_ftell(pb) - atom.offset)); |
6cea494e ZK |
239 | return 0; |
240 | } | |
241 | ||
9e40addd | 242 | static int mp4_read_descr_len(ByteIOContext *pb) |
0e7eed09 | 243 | { |
5cd62665 | 244 | int len = 0; |
5ca1d879 ZK |
245 | int count = 4; |
246 | while (count--) { | |
5cd62665 | 247 | int c = get_byte(pb); |
bb270c08 DB |
248 | len = (len << 7) | (c & 0x7f); |
249 | if (!(c & 0x80)) | |
250 | break; | |
0e7eed09 FB |
251 | } |
252 | return len; | |
253 | } | |
254 | ||
9e40addd | 255 | static int mp4_read_descr(MOVContext *c, ByteIOContext *pb, int *tag) |
0e7eed09 FB |
256 | { |
257 | int len; | |
258 | *tag = get_byte(pb); | |
9e40addd | 259 | len = mp4_read_descr_len(pb); |
318c5e05 | 260 | dprintf(c->fc, "MPEG4 description: tag=0x%02x len=%d\n", *tag, len); |
0e7eed09 FB |
261 | return len; |
262 | } | |
263 | ||
0b07ac42 BC |
264 | #define MP4ESDescrTag 0x03 |
265 | #define MP4DecConfigDescrTag 0x04 | |
266 | #define MP4DecSpecificDescrTag 0x05 | |
267 | ||
5ca1d879 | 268 | static int mov_read_esds(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) |
5cd62665 | 269 | { |
5cd62665 | 270 | AVStream *st = c->fc->streams[c->fc->nb_streams-1]; |
5cd62665 | 271 | int tag, len; |
b6a17df4 | 272 | |
5cd62665 | 273 | get_be32(pb); /* version + flags */ |
9e40addd | 274 | len = mp4_read_descr(c, pb, &tag); |
5cd62665 | 275 | if (tag == MP4ESDescrTag) { |
bb270c08 DB |
276 | get_be16(pb); /* ID */ |
277 | get_byte(pb); /* priority */ | |
5cd62665 | 278 | } else |
bb270c08 | 279 | get_be16(pb); /* ID */ |
5cd62665 | 280 | |
9e40addd | 281 | len = mp4_read_descr(c, pb, &tag); |
5cd62665 | 282 | if (tag == MP4DecConfigDescrTag) { |
0b07ac42 BC |
283 | int object_type_id = get_byte(pb); |
284 | get_byte(pb); /* stream type */ | |
285 | get_be24(pb); /* buffer size db */ | |
286 | get_be32(pb); /* max bitrate */ | |
287 | get_be32(pb); /* avg bitrate */ | |
288 | ||
289 | st->codec->codec_id= codec_get_id(ff_mp4_obj_type, object_type_id); | |
290 | dprintf(c->fc, "esds object type id %d\n", object_type_id); | |
9e40addd | 291 | len = mp4_read_descr(c, pb, &tag); |
bb270c08 | 292 | if (tag == MP4DecSpecificDescrTag) { |
318c5e05 | 293 | dprintf(c->fc, "Specific MPEG4 header len=%d\n", len); |
852859ff BC |
294 | if((uint64_t)len > (1<<30)) |
295 | return -1; | |
9a630c25 | 296 | st->codec->extradata = av_mallocz(len + FF_INPUT_BUFFER_PADDING_SIZE); |
b014dd76 BC |
297 | if (!st->codec->extradata) |
298 | return AVERROR(ENOMEM); | |
17871a02 BC |
299 | get_buffer(pb, st->codec->extradata, len); |
300 | st->codec->extradata_size = len; | |
301 | /* from mplayer */ | |
302 | if ((*st->codec->extradata >> 3) == 29) { | |
303 | st->codec->codec_id = CODEC_ID_MP3ON4; | |
304 | } | |
bb270c08 | 305 | } |
5cd62665 | 306 | } |
5cd62665 ZK |
307 | return 0; |
308 | } | |
309 | ||
5ca1d879 ZK |
310 | /* this atom contains actual media data */ |
311 | static int mov_read_mdat(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) | |
6cea494e | 312 | { |
5ca1d879 ZK |
313 | if(atom.size == 0) /* wrong one (MP4) */ |
314 | return 0; | |
315 | c->found_mdat=1; | |
5ca1d879 ZK |
316 | if(c->found_moov) |
317 | return 1; /* found both, just go */ | |
318 | url_fskip(pb, atom.size); | |
319 | return 0; /* now go for moov */ | |
320 | } | |
321 | ||
4ea28253 BC |
322 | static int mov_read_ftyp(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) |
323 | { | |
324 | uint32_t type = get_le32(pb); | |
325 | ||
152e9a43 BC |
326 | if (type != MKTAG('q','t',' ',' ')) |
327 | c->isom = 1; | |
a512446e | 328 | av_log(c->fc, AV_LOG_DEBUG, "ISO: File Type Major Brand: %.4s\n",(char *)&type); |
4ea28253 BC |
329 | get_be32(pb); /* minor version */ |
330 | url_fskip(pb, atom.size - 8); | |
331 | return 0; | |
332 | } | |
333 | ||
5ca1d879 ZK |
334 | /* this atom should contain all header atoms */ |
335 | static int mov_read_moov(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) | |
336 | { | |
9cf0419b PI |
337 | if (mov_read_default(c, pb, atom) < 0) |
338 | return -1; | |
5ca1d879 ZK |
339 | /* we parsed the 'moov' atom, we can terminate the parsing as soon as we find the 'mdat' */ |
340 | /* so we don't parse the whole file if over a network */ | |
341 | c->found_moov=1; | |
342 | if(c->found_mdat) | |
343 | return 1; /* found both, just go */ | |
344 | return 0; /* now go for mdat */ | |
345 | } | |
346 | ||
347 | ||
348 | static int mov_read_mdhd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) | |
349 | { | |
f444b977 | 350 | AVStream *st = c->fc->streams[c->fc->nb_streams-1]; |
e4141433 | 351 | MOVStreamContext *sc = st->priv_data; |
f444b977 | 352 | int version = get_byte(pb); |
b9a87c4d | 353 | int lang; |
5ca1d879 | 354 | |
b9a87c4d FR |
355 | if (version > 1) |
356 | return 1; /* unsupported */ | |
5ca1d879 ZK |
357 | |
358 | get_byte(pb); get_byte(pb); | |
359 | get_byte(pb); /* flags */ | |
360 | ||
f444b977 BC |
361 | if (version == 1) { |
362 | get_be64(pb); | |
363 | get_be64(pb); | |
364 | } else { | |
365 | get_be32(pb); /* creation time */ | |
366 | get_be32(pb); /* modification time */ | |
367 | } | |
5ca1d879 | 368 | |
f444b977 BC |
369 | sc->time_scale = get_be32(pb); |
370 | st->duration = (version == 1) ? get_be64(pb) : get_be32(pb); /* duration */ | |
5ca1d879 | 371 | |
b9a87c4d | 372 | lang = get_be16(pb); /* language */ |
f444b977 | 373 | ff_mov_lang_to_iso639(lang, st->language); |
5ca1d879 ZK |
374 | get_be16(pb); /* quality */ |
375 | ||
376 | return 0; | |
377 | } | |
378 | ||
379 | static int mov_read_mvhd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) | |
380 | { | |
1175561e | 381 | int version = get_byte(pb); /* version */ |
5ca1d879 ZK |
382 | get_byte(pb); get_byte(pb); get_byte(pb); /* flags */ |
383 | ||
1175561e BC |
384 | if (version == 1) { |
385 | get_be64(pb); | |
386 | get_be64(pb); | |
387 | } else { | |
388 | get_be32(pb); /* creation time */ | |
389 | get_be32(pb); /* modification time */ | |
390 | } | |
5ca1d879 | 391 | c->time_scale = get_be32(pb); /* time scale */ |
f8c18cd7 BC |
392 | |
393 | dprintf(c->fc, "time scale = %i\n", c->time_scale); | |
394 | ||
1175561e | 395 | c->duration = (version == 1) ? get_be64(pb) : get_be32(pb); /* duration */ |
5ca1d879 ZK |
396 | get_be32(pb); /* preferred scale */ |
397 | ||
398 | get_be16(pb); /* preferred volume */ | |
399 | ||
400 | url_fskip(pb, 10); /* reserved */ | |
401 | ||
402 | url_fskip(pb, 36); /* display matrix */ | |
403 | ||
404 | get_be32(pb); /* preview time */ | |
405 | get_be32(pb); /* preview duration */ | |
406 | get_be32(pb); /* poster time */ | |
407 | get_be32(pb); /* selection time */ | |
408 | get_be32(pb); /* selection duration */ | |
409 | get_be32(pb); /* current time */ | |
410 | get_be32(pb); /* next track ID */ | |
411 | ||
412 | return 0; | |
413 | } | |
414 | ||
9ed83b0a ZK |
415 | static int mov_read_smi(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) |
416 | { | |
417 | AVStream *st = c->fc->streams[c->fc->nb_streams-1]; | |
418 | ||
568e18b1 MN |
419 | if((uint64_t)atom.size > (1<<30)) |
420 | return -1; | |
115329f1 | 421 | |
9ed83b0a ZK |
422 | // currently SVQ3 decoder expect full STSD header - so let's fake it |
423 | // this should be fixed and just SMI header should be passed | |
01f4895c | 424 | av_free(st->codec->extradata); |
b014dd76 BC |
425 | st->codec->extradata = av_mallocz(atom.size + 0x5a + FF_INPUT_BUFFER_PADDING_SIZE); |
426 | if (!st->codec->extradata) | |
427 | return AVERROR(ENOMEM); | |
17871a02 BC |
428 | st->codec->extradata_size = 0x5a + atom.size; |
429 | memcpy(st->codec->extradata, "SVQ3", 4); // fake | |
430 | get_buffer(pb, st->codec->extradata + 0x5a, atom.size); | |
431 | dprintf(c->fc, "Reading SMI %"PRId64" %s\n", atom.size, st->codec->extradata + 0x5a); | |
9ed83b0a ZK |
432 | return 0; |
433 | } | |
5ca1d879 | 434 | |
de23f234 BC |
435 | static int mov_read_enda(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) |
436 | { | |
437 | AVStream *st = c->fc->streams[c->fc->nb_streams-1]; | |
438 | int little_endian = get_be16(pb); | |
439 | ||
440 | if (little_endian) { | |
441 | switch (st->codec->codec_id) { | |
442 | case CODEC_ID_PCM_S24BE: | |
443 | st->codec->codec_id = CODEC_ID_PCM_S24LE; | |
444 | break; | |
445 | case CODEC_ID_PCM_S32BE: | |
446 | st->codec->codec_id = CODEC_ID_PCM_S32LE; | |
447 | break; | |
448 | default: | |
449 | break; | |
450 | } | |
451 | } | |
452 | return 0; | |
453 | } | |
454 | ||
014a5102 BC |
455 | /* FIXME modify qdm2/svq3/h264 decoders to take full atom as extradata */ |
456 | static int mov_read_extradata(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) | |
de23f234 BC |
457 | { |
458 | AVStream *st = c->fc->streams[c->fc->nb_streams-1]; | |
68bc33fa BC |
459 | uint64_t size= (uint64_t)st->codec->extradata_size + atom.size + 8 + FF_INPUT_BUFFER_PADDING_SIZE; |
460 | uint8_t *buf; | |
461 | if(size > INT_MAX || (uint64_t)atom.size > INT_MAX) | |
014a5102 | 462 | return -1; |
68bc33fa BC |
463 | buf= av_realloc(st->codec->extradata, size); |
464 | if(!buf) | |
465 | return -1; | |
466 | st->codec->extradata= buf; | |
467 | buf+= st->codec->extradata_size; | |
468 | st->codec->extradata_size= size - FF_INPUT_BUFFER_PADDING_SIZE; | |
469 | AV_WB32( buf , atom.size + 8); | |
470 | AV_WL32( buf + 4, atom.type); | |
471 | get_buffer(pb, buf + 8, atom.size); | |
de23f234 BC |
472 | return 0; |
473 | } | |
474 | ||
d9b1c197 RT |
475 | static int mov_read_wave(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) |
476 | { | |
477 | AVStream *st = c->fc->streams[c->fc->nb_streams-1]; | |
478 | ||
479 | if((uint64_t)atom.size > (1<<30)) | |
480 | return -1; | |
115329f1 | 481 | |
3840147e MN |
482 | if (st->codec->codec_id == CODEC_ID_QDM2) { |
483 | // pass all frma atom to codec, needed at least for QDM2 | |
484 | av_free(st->codec->extradata); | |
b014dd76 BC |
485 | st->codec->extradata = av_mallocz(atom.size + FF_INPUT_BUFFER_PADDING_SIZE); |
486 | if (!st->codec->extradata) | |
487 | return AVERROR(ENOMEM); | |
3840147e | 488 | st->codec->extradata_size = atom.size; |
b014dd76 | 489 | get_buffer(pb, st->codec->extradata, atom.size); |
3840147e | 490 | } else if (atom.size > 8) { /* to read frma, esds atoms */ |
9cf0419b PI |
491 | if (mov_read_default(c, pb, atom) < 0) |
492 | return -1; | |
5c72cad8 | 493 | } else |
bb270c08 | 494 | url_fskip(pb, atom.size); |
d9b1c197 RT |
495 | return 0; |
496 | } | |
497 | ||
bde24601 BC |
498 | /** |
499 | * This function reads atom content and puts data in extradata without tag | |
500 | * nor size unlike mov_read_extradata. | |
501 | */ | |
502 | static int mov_read_glbl(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) | |
169eb021 MM |
503 | { |
504 | AVStream *st = c->fc->streams[c->fc->nb_streams-1]; | |
505 | ||
568e18b1 MN |
506 | if((uint64_t)atom.size > (1<<30)) |
507 | return -1; | |
508 | ||
01f4895c | 509 | av_free(st->codec->extradata); |
b014dd76 BC |
510 | st->codec->extradata = av_mallocz(atom.size + FF_INPUT_BUFFER_PADDING_SIZE); |
511 | if (!st->codec->extradata) | |
512 | return AVERROR(ENOMEM); | |
01f4895c | 513 | st->codec->extradata_size = atom.size; |
b014dd76 | 514 | get_buffer(pb, st->codec->extradata, atom.size); |
169eb021 MM |
515 | return 0; |
516 | } | |
517 | ||
5ca1d879 ZK |
518 | static int mov_read_stco(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) |
519 | { | |
520 | AVStream *st = c->fc->streams[c->fc->nb_streams-1]; | |
e4141433 | 521 | MOVStreamContext *sc = st->priv_data; |
568e18b1 | 522 | unsigned int i, entries; |
5ca1d879 | 523 | |
5ca1d879 ZK |
524 | get_byte(pb); /* version */ |
525 | get_byte(pb); get_byte(pb); get_byte(pb); /* flags */ | |
526 | ||
527 | entries = get_be32(pb); | |
115329f1 | 528 | |
568e18b1 MN |
529 | if(entries >= UINT_MAX/sizeof(int64_t)) |
530 | return -1; | |
115329f1 | 531 | |
5ca1d879 | 532 | sc->chunk_count = entries; |
9a630c25 | 533 | sc->chunk_offsets = av_malloc(entries * sizeof(int64_t)); |
5ca1d879 ZK |
534 | if (!sc->chunk_offsets) |
535 | return -1; | |
536 | if (atom.type == MKTAG('s', 't', 'c', 'o')) { | |
537 | for(i=0; i<entries; i++) { | |
538 | sc->chunk_offsets[i] = get_be32(pb); | |
539 | } | |
540 | } else if (atom.type == MKTAG('c', 'o', '6', '4')) { | |
541 | for(i=0; i<entries; i++) { | |
542 | sc->chunk_offsets[i] = get_be64(pb); | |
543 | } | |
544 | } else | |
545 | return -1; | |
115329f1 | 546 | |
5ca1d879 ZK |
547 | return 0; |
548 | } | |
549 | ||
550 | static int mov_read_stsd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) | |
551 | { | |
552 | AVStream *st = c->fc->streams[c->fc->nb_streams-1]; | |
e4141433 | 553 | MOVStreamContext *sc = st->priv_data; |
5ca1d879 ZK |
554 | int entries, frames_per_sample; |
555 | uint32_t format; | |
53ffdd14 | 556 | uint8_t codec_name[32]; |
5ca1d879 | 557 | |
b595afaa | 558 | /* for palette traversal */ |
8b35bd80 MM |
559 | unsigned int color_depth; |
560 | unsigned int color_start; | |
561 | unsigned int color_count; | |
562 | unsigned int color_end; | |
b595afaa MM |
563 | int color_index; |
564 | int color_dec; | |
565 | int color_greyscale; | |
1fe47470 | 566 | const uint8_t *color_table; |
ee6e2dbe | 567 | int j, pseudo_stream_id; |
b595afaa MM |
568 | unsigned char r, g, b; |
569 | ||
6cea494e ZK |
570 | get_byte(pb); /* version */ |
571 | get_byte(pb); get_byte(pb); get_byte(pb); /* flags */ | |
572 | ||
6cea494e ZK |
573 | entries = get_be32(pb); |
574 | ||
ee6e2dbe | 575 | for(pseudo_stream_id=0; pseudo_stream_id<entries; pseudo_stream_id++) { //Parsing Sample description table |
b6a17df4 | 576 | enum CodecID id; |
de23f234 | 577 | MOV_atom_t a = { 0, 0, 0 }; |
3840147e | 578 | offset_t start_pos = url_ftell(pb); |
bb270c08 | 579 | int size = get_be32(pb); /* size */ |
6cea494e | 580 | format = get_le32(pb); /* data format */ |
5cd62665 | 581 | |
6cea494e ZK |
582 | get_be32(pb); /* reserved */ |
583 | get_be16(pb); /* reserved */ | |
584 | get_be16(pb); /* index */ | |
0e7eed09 | 585 | |
744a9c75 MN |
586 | if (st->codec->codec_tag && |
587 | (c->fc->video_codec_id ? codec_get_id(codec_movvideo_tags, format) != c->fc->video_codec_id | |
588 | : st->codec->codec_tag != MKTAG('j', 'p', 'e', 'g')) | |
589 | ){ | |
0bc4728e MN |
590 | /* multiple fourcc, we skip jpeg, this isnt correct, we should export it as |
591 | seperate AVStream but this needs a few changes in the mov demuxer, patch | |
592 | welcome */ | |
e7cc4b52 BC |
593 | url_fskip(pb, size - (url_ftell(pb) - start_pos)); |
594 | continue; | |
595 | } | |
ee6e2dbe | 596 | sc->pseudo_stream_id= pseudo_stream_id; |
e7cc4b52 | 597 | |
bb270c08 | 598 | st->codec->codec_tag = format; |
1e5f5e3b | 599 | id = codec_get_id(codec_movaudio_tags, format); |
bca7db35 MN |
600 | if (id<=0 && (format&0xFFFF) == 'm' + ('s'<<8)) |
601 | id = codec_get_id(codec_wav_tags, bswap_32(format)&0xFFFF); | |
602 | ||
48855b26 | 603 | if (st->codec->codec_type != CODEC_TYPE_VIDEO && id > 0) { |
99487f42 | 604 | st->codec->codec_type = CODEC_TYPE_AUDIO; |
48855b26 BC |
605 | } else if (st->codec->codec_type != CODEC_TYPE_AUDIO && /* do not overwrite codec type */ |
606 | format && format != MKTAG('m', 'p', '4', 's')) { /* skip old asf mpeg4 tag */ | |
1e5f5e3b | 607 | id = codec_get_id(codec_movvideo_tags, format); |
99487f42 | 608 | if (id <= 0) |
de23f234 | 609 | id = codec_get_id(codec_bmp_tags, format); |
99487f42 BC |
610 | if (id > 0) |
611 | st->codec->codec_type = CODEC_TYPE_VIDEO; | |
1e3c9307 MN |
612 | else if(st->codec->codec_type == CODEC_TYPE_DATA){ |
613 | id = codec_get_id(ff_codec_movsubtitle_tags, format); | |
614 | if(id > 0) | |
615 | st->codec->codec_type = CODEC_TYPE_SUBTITLE; | |
616 | } | |
99487f42 BC |
617 | } |
618 | ||
29c90869 BC |
619 | dprintf(c->fc, "size=%d 4CC= %c%c%c%c codec_type=%d\n", size, |
620 | (format >> 0) & 0xff, (format >> 8) & 0xff, (format >> 16) & 0xff, | |
621 | (format >> 24) & 0xff, st->codec->codec_type); | |
a20da52c | 622 | |
99487f42 | 623 | if(st->codec->codec_type==CODEC_TYPE_VIDEO) { |
01f4895c | 624 | st->codec->codec_id = id; |
6cea494e ZK |
625 | get_be16(pb); /* version */ |
626 | get_be16(pb); /* revision level */ | |
627 | get_be32(pb); /* vendor */ | |
628 | get_be32(pb); /* temporal quality */ | |
94472c1d | 629 | get_be32(pb); /* spatial quality */ |
3cb4ee51 BC |
630 | |
631 | st->codec->width = get_be16(pb); /* width */ | |
632 | st->codec->height = get_be16(pb); /* height */ | |
633 | ||
6cea494e ZK |
634 | get_be32(pb); /* horiz resolution */ |
635 | get_be32(pb); /* vert resolution */ | |
636 | get_be32(pb); /* data size, always 0 */ | |
5cd62665 | 637 | frames_per_sample = get_be16(pb); /* frames per samples */ |
f8c18cd7 BC |
638 | |
639 | dprintf(c->fc, "frames/samples = %d\n", frames_per_sample); | |
640 | ||
576f1445 BC |
641 | get_buffer(pb, codec_name, 32); /* codec name, pascal string (FIXME: true for mp4?) */ |
642 | if (codec_name[0] <= 31) { | |
643 | memcpy(st->codec->codec_name, &codec_name[1],codec_name[0]); | |
644 | st->codec->codec_name[codec_name[0]] = 0; | |
645 | } | |
5cd62665 | 646 | |
bb270c08 | 647 | st->codec->bits_per_sample = get_be16(pb); /* depth */ |
01f4895c | 648 | st->codec->color_table_id = get_be16(pb); /* colortable id */ |
6cea494e | 649 | |
b595afaa | 650 | /* figure out the palette situation */ |
01f4895c MN |
651 | color_depth = st->codec->bits_per_sample & 0x1F; |
652 | color_greyscale = st->codec->bits_per_sample & 0x20; | |
b595afaa MM |
653 | |
654 | /* if the depth is 2, 4, or 8 bpp, file is palettized */ | |
115329f1 | 655 | if ((color_depth == 2) || (color_depth == 4) || |
b595afaa | 656 | (color_depth == 8)) { |
b595afaa | 657 | if (color_greyscale) { |
b595afaa MM |
658 | /* compute the greyscale palette */ |
659 | color_count = 1 << color_depth; | |
660 | color_index = 255; | |
661 | color_dec = 256 / (color_count - 1); | |
662 | for (j = 0; j < color_count; j++) { | |
663 | r = g = b = color_index; | |
664 | c->palette_control.palette[j] = | |
665 | (r << 16) | (g << 8) | (b); | |
666 | color_index -= color_dec; | |
667 | if (color_index < 0) | |
668 | color_index = 0; | |
669 | } | |
01f4895c | 670 | } else if (st->codec->color_table_id & 0x08) { |
b595afaa MM |
671 | /* if flag bit 3 is set, use the default palette */ |
672 | color_count = 1 << color_depth; | |
673 | if (color_depth == 2) | |
a90466f7 | 674 | color_table = ff_qt_default_palette_4; |
b595afaa | 675 | else if (color_depth == 4) |
a90466f7 | 676 | color_table = ff_qt_default_palette_16; |
b595afaa | 677 | else |
a90466f7 | 678 | color_table = ff_qt_default_palette_256; |
b595afaa MM |
679 | |
680 | for (j = 0; j < color_count; j++) { | |
681 | r = color_table[j * 4 + 0]; | |
682 | g = color_table[j * 4 + 1]; | |
683 | b = color_table[j * 4 + 2]; | |
684 | c->palette_control.palette[j] = | |
685 | (r << 16) | (g << 8) | (b); | |
686 | } | |
b595afaa | 687 | } else { |
b595afaa MM |
688 | /* load the palette from the file */ |
689 | color_start = get_be32(pb); | |
690 | color_count = get_be16(pb); | |
691 | color_end = get_be16(pb); | |
8b35bd80 MM |
692 | if ((color_start <= 255) && |
693 | (color_end <= 255)) { | |
9de2919c MM |
694 | for (j = color_start; j <= color_end; j++) { |
695 | /* each R, G, or B component is 16 bits; | |
696 | * only use the top 8 bits; skip alpha bytes | |
697 | * up front */ | |
698 | get_byte(pb); | |
699 | get_byte(pb); | |
700 | r = get_byte(pb); | |
701 | get_byte(pb); | |
702 | g = get_byte(pb); | |
703 | get_byte(pb); | |
704 | b = get_byte(pb); | |
705 | get_byte(pb); | |
706 | c->palette_control.palette[j] = | |
707 | (r << 16) | (g << 8) | (b); | |
8b35bd80 | 708 | } |
b595afaa MM |
709 | } |
710 | } | |
01f4895c MN |
711 | st->codec->palctrl = &c->palette_control; |
712 | st->codec->palctrl->palette_changed = 1; | |
b595afaa | 713 | } else |
01f4895c | 714 | st->codec->palctrl = NULL; |
de23f234 | 715 | } else if(st->codec->codec_type==CODEC_TYPE_AUDIO) { |
b72708f8 | 716 | int bits_per_sample; |
de23f234 | 717 | uint16_t version = get_be16(pb); |
b595afaa | 718 | |
99487f42 | 719 | st->codec->codec_id = id; |
de23f234 BC |
720 | get_be16(pb); /* revision level */ |
721 | get_be32(pb); /* vendor */ | |
6d6d7970 | 722 | |
de23f234 | 723 | st->codec->channels = get_be16(pb); /* channel count */ |
318c5e05 | 724 | dprintf(c->fc, "audio channels %d\n", st->codec->channels); |
de23f234 | 725 | st->codec->bits_per_sample = get_be16(pb); /* sample size */ |
de23f234 | 726 | |
77c75437 | 727 | sc->audio_cid = get_be16(pb); |
de23f234 BC |
728 | get_be16(pb); /* packet size = 0 */ |
729 | ||
730 | st->codec->sample_rate = ((get_be32(pb) >> 16)); | |
731 | ||
732 | switch (st->codec->codec_id) { | |
b72708f8 BC |
733 | case CODEC_ID_PCM_S8: |
734 | case CODEC_ID_PCM_U8: | |
735 | if (st->codec->bits_per_sample == 16) | |
736 | st->codec->codec_id = CODEC_ID_PCM_S16BE; | |
737 | break; | |
0dd39bfe | 738 | case CODEC_ID_PCM_S16LE: |
de23f234 BC |
739 | case CODEC_ID_PCM_S16BE: |
740 | if (st->codec->bits_per_sample == 8) | |
741 | st->codec->codec_id = CODEC_ID_PCM_S8; | |
0299a87c BC |
742 | else if (st->codec->bits_per_sample == 24) |
743 | st->codec->codec_id = CODEC_ID_PCM_S24BE; | |
de23f234 | 744 | break; |
53152765 BC |
745 | /* set values for old format before stsd version 1 appeared */ |
746 | case CODEC_ID_MACE3: | |
747 | sc->samples_per_frame = 6; | |
748 | sc->bytes_per_frame = 2*st->codec->channels; | |
749 | break; | |
750 | case CODEC_ID_MACE6: | |
751 | sc->samples_per_frame = 6; | |
752 | sc->bytes_per_frame = 1*st->codec->channels; | |
753 | break; | |
754 | case CODEC_ID_ADPCM_IMA_QT: | |
755 | sc->samples_per_frame = 64; | |
756 | sc->bytes_per_frame = 34*st->codec->channels; | |
757 | break; | |
de23f234 BC |
758 | default: |
759 | break; | |
6d6d7970 | 760 | } |
14342fd5 | 761 | |
755bfeab | 762 | //Read QT version 1 fields. In version 0 these do not exist. |
318c5e05 | 763 | dprintf(c->fc, "version =%d, isom =%d\n",version,c->isom); |
152e9a43 | 764 | if(!c->isom) { |
80c5b9a1 | 765 | if(version==1) { |
e14f79ed | 766 | sc->samples_per_frame = get_be32(pb); |
80c5b9a1 | 767 | get_be32(pb); /* bytes per packet */ |
e14f79ed | 768 | sc->bytes_per_frame = get_be32(pb); |
80c5b9a1 BC |
769 | get_be32(pb); /* bytes per sample */ |
770 | } else if(version==2) { | |
771 | get_be32(pb); /* sizeof struct only */ | |
772 | st->codec->sample_rate = av_int2dbl(get_be64(pb)); /* float 64 */ | |
773 | st->codec->channels = get_be32(pb); | |
774 | get_be32(pb); /* always 0x7F000000 */ | |
775 | get_be32(pb); /* bits per channel if sound is uncompressed */ | |
776 | get_be32(pb); /* lcpm format specific flag */ | |
777 | get_be32(pb); /* bytes per audio packet if constant */ | |
778 | get_be32(pb); /* lpcm frames per audio packet if constant */ | |
779 | } | |
152e9a43 | 780 | } |
9770089d BC |
781 | |
782 | bits_per_sample = av_get_bits_per_sample(st->codec->codec_id); | |
783 | if (bits_per_sample) { | |
784 | st->codec->bits_per_sample = bits_per_sample; | |
785 | sc->sample_size = (bits_per_sample >> 3) * st->codec->channels; | |
786 | } | |
cc8d87b7 MN |
787 | } else if(st->codec->codec_type==CODEC_TYPE_SUBTITLE){ |
788 | st->codec->codec_id= id; | |
de23f234 BC |
789 | } else { |
790 | /* other codec type, just skip (rtp, mp4s, tmcd ...) */ | |
791 | url_fskip(pb, size - (url_ftell(pb) - start_pos)); | |
6cea494e | 792 | } |
de23f234 BC |
793 | /* this will read extra atoms at the end (wave, alac, damr, avcC, SMI ...) */ |
794 | a.size = size - (url_ftell(pb) - start_pos); | |
9cf0419b PI |
795 | if (a.size > 8) { |
796 | if (mov_read_default(c, pb, a) < 0) | |
797 | return -1; | |
798 | } else if (a.size > 0) | |
de23f234 | 799 | url_fskip(pb, a.size); |
6cea494e | 800 | } |
115329f1 | 801 | |
60f5c96e | 802 | if(st->codec->codec_type==CODEC_TYPE_AUDIO && st->codec->sample_rate==0 && sc->time_scale>1) |
302c389e | 803 | st->codec->sample_rate= sc->time_scale; |
e31bd3e3 | 804 | |
d00f8e17 | 805 | /* special codec parameters handling */ |
e31bd3e3 | 806 | switch (st->codec->codec_id) { |
989ac5a6 | 807 | #ifdef CONFIG_DV_DEMUXER |
b60c0454 BC |
808 | case CODEC_ID_DVAUDIO: |
809 | c->dv_fctx = av_alloc_format_context(); | |
810 | c->dv_demux = dv_init_demux(c->dv_fctx); | |
811 | if (!c->dv_demux) { | |
812 | av_log(c->fc, AV_LOG_ERROR, "dv demux context init error\n"); | |
813 | return -1; | |
814 | } | |
815 | sc->dv_audio_container = 1; | |
816 | st->codec->codec_id = CODEC_ID_PCM_S16LE; | |
817 | break; | |
989ac5a6 | 818 | #endif |
b95319a2 BC |
819 | /* no ifdef since parameters are always those */ |
820 | case CODEC_ID_AMR_WB: | |
821 | st->codec->sample_rate= 16000; | |
822 | st->codec->channels= 1; /* really needed */ | |
823 | break; | |
824 | case CODEC_ID_AMR_NB: | |
825 | st->codec->sample_rate= 8000; | |
826 | st->codec->channels= 1; /* really needed */ | |
827 | break; | |
a41104f8 | 828 | case CODEC_ID_MP2: |
c59f24e6 | 829 | case CODEC_ID_MP3: |
95a07973 | 830 | st->codec->codec_type = CODEC_TYPE_AUDIO; /* force type after stsd for m1a hdlr */ |
57004ff1 | 831 | st->need_parsing = AVSTREAM_PARSE_FULL; |
a41104f8 | 832 | break; |
74e9b9ae BC |
833 | case CODEC_ID_ADPCM_MS: |
834 | case CODEC_ID_ADPCM_IMA_WAV: | |
835 | st->codec->block_align = sc->bytes_per_frame; | |
836 | break; | |
e31bd3e3 BC |
837 | default: |
838 | break; | |
839 | } | |
5cd62665 | 840 | |
6cea494e ZK |
841 | return 0; |
842 | } | |
843 | ||
5ca1d879 | 844 | static int mov_read_stsc(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) |
6cea494e | 845 | { |
5ca1d879 | 846 | AVStream *st = c->fc->streams[c->fc->nb_streams-1]; |
e4141433 | 847 | MOVStreamContext *sc = st->priv_data; |
568e18b1 | 848 | unsigned int i, entries; |
b6a17df4 | 849 | |
6cea494e ZK |
850 | get_byte(pb); /* version */ |
851 | get_byte(pb); get_byte(pb); get_byte(pb); /* flags */ | |
852 | ||
853 | entries = get_be32(pb); | |
115329f1 | 854 | |
e23848a4 | 855 | if(entries >= UINT_MAX / sizeof(MOV_stsc_t)) |
568e18b1 | 856 | return -1; |
115329f1 | 857 | |
f8c18cd7 BC |
858 | dprintf(c->fc, "track[%i].stsc.entries = %i\n", c->fc->nb_streams-1, entries); |
859 | ||
6cea494e | 860 | sc->sample_to_chunk_sz = entries; |
e23848a4 | 861 | sc->sample_to_chunk = av_malloc(entries * sizeof(MOV_stsc_t)); |
b6a17df4 ZK |
862 | if (!sc->sample_to_chunk) |
863 | return -1; | |
6cea494e ZK |
864 | for(i=0; i<entries; i++) { |
865 | sc->sample_to_chunk[i].first = get_be32(pb); | |
866 | sc->sample_to_chunk[i].count = get_be32(pb); | |
867 | sc->sample_to_chunk[i].id = get_be32(pb); | |
6cea494e ZK |
868 | } |
869 | return 0; | |
870 | } | |
871 | ||
247d56f5 BB |
872 | static int mov_read_stss(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) |
873 | { | |
874 | AVStream *st = c->fc->streams[c->fc->nb_streams-1]; | |
e4141433 | 875 | MOVStreamContext *sc = st->priv_data; |
568e18b1 | 876 | unsigned int i, entries; |
247d56f5 | 877 | |
247d56f5 BB |
878 | get_byte(pb); /* version */ |
879 | get_byte(pb); get_byte(pb); get_byte(pb); /* flags */ | |
880 | ||
881 | entries = get_be32(pb); | |
115329f1 | 882 | |
1c02d96f | 883 | if(entries >= UINT_MAX / sizeof(int)) |
568e18b1 | 884 | return -1; |
115329f1 | 885 | |
247d56f5 | 886 | sc->keyframe_count = entries; |
f8c18cd7 BC |
887 | |
888 | dprintf(c->fc, "keyframe_count = %d\n", sc->keyframe_count); | |
889 | ||
1c02d96f | 890 | sc->keyframes = av_malloc(entries * sizeof(int)); |
247d56f5 BB |
891 | if (!sc->keyframes) |
892 | return -1; | |
893 | for(i=0; i<entries; i++) { | |
894 | sc->keyframes[i] = get_be32(pb); | |
f8c18cd7 | 895 | //dprintf(c->fc, "keyframes[]=%d\n", sc->keyframes[i]); |
247d56f5 BB |
896 | } |
897 | return 0; | |
898 | } | |
899 | ||
5ca1d879 | 900 | static int mov_read_stsz(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) |
6cea494e | 901 | { |
5ca1d879 | 902 | AVStream *st = c->fc->streams[c->fc->nb_streams-1]; |
e4141433 | 903 | MOVStreamContext *sc = st->priv_data; |
b72708f8 | 904 | unsigned int i, entries, sample_size; |
b6a17df4 | 905 | |
6cea494e ZK |
906 | get_byte(pb); /* version */ |
907 | get_byte(pb); get_byte(pb); get_byte(pb); /* flags */ | |
5cd62665 | 908 | |
b72708f8 BC |
909 | sample_size = get_be32(pb); |
910 | if (!sc->sample_size) /* do not overwrite value computed in stsd */ | |
911 | sc->sample_size = sample_size; | |
6cea494e | 912 | entries = get_be32(pb); |
1c02d96f | 913 | if(entries >= UINT_MAX / sizeof(int)) |
568e18b1 MN |
914 | return -1; |
915 | ||
6cea494e | 916 | sc->sample_count = entries; |
b72708f8 BC |
917 | if (sample_size) |
918 | return 0; | |
919 | ||
f8c18cd7 BC |
920 | dprintf(c->fc, "sample_size = %d sample_count = %d\n", sc->sample_size, sc->sample_count); |
921 | ||
1c02d96f | 922 | sc->sample_sizes = av_malloc(entries * sizeof(int)); |
b6a17df4 ZK |
923 | if (!sc->sample_sizes) |
924 | return -1; | |
6cea494e ZK |
925 | for(i=0; i<entries; i++) { |
926 | sc->sample_sizes[i] = get_be32(pb); | |
f8c18cd7 | 927 | dprintf(c->fc, "sample_sizes[]=%d\n", sc->sample_sizes[i]); |
6cea494e ZK |
928 | } |
929 | return 0; | |
930 | } | |
931 | ||
5ca1d879 | 932 | static int mov_read_stts(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) |
0147f198 | 933 | { |
5ca1d879 | 934 | AVStream *st = c->fc->streams[c->fc->nb_streams-1]; |
e4141433 | 935 | MOVStreamContext *sc = st->priv_data; |
568e18b1 | 936 | unsigned int i, entries; |
d957696f MN |
937 | int64_t duration=0; |
938 | int64_t total_sample_count=0; | |
b6a17df4 | 939 | |
0147f198 FR |
940 | get_byte(pb); /* version */ |
941 | get_byte(pb); get_byte(pb); get_byte(pb); /* flags */ | |
942 | entries = get_be32(pb); | |
e23848a4 | 943 | if(entries >= UINT_MAX / sizeof(MOV_stts_t)) |
568e18b1 | 944 | return -1; |
891f64b3 | 945 | |
cd7352d5 | 946 | sc->stts_count = entries; |
e23848a4 | 947 | sc->stts_data = av_malloc(entries * sizeof(MOV_stts_t)); |
c1da59fa BC |
948 | if (!sc->stts_data) |
949 | return -1; | |
f8c18cd7 | 950 | dprintf(c->fc, "track[%i].stts.entries = %i\n", c->fc->nb_streams-1, entries); |
cd7352d5 MN |
951 | |
952 | sc->time_rate=0; | |
953 | ||
0147f198 | 954 | for(i=0; i<entries; i++) { |
cd461d48 MN |
955 | int sample_duration; |
956 | int sample_count; | |
0147f198 | 957 | |
891f64b3 | 958 | sample_count=get_be32(pb); |
0147f198 | 959 | sample_duration = get_be32(pb); |
cd7352d5 MN |
960 | sc->stts_data[i].count= sample_count; |
961 | sc->stts_data[i].duration= sample_duration; | |
962 | ||
963 | sc->time_rate= ff_gcd(sc->time_rate, sample_duration); | |
961e0ccd | 964 | |
318c5e05 | 965 | dprintf(c->fc, "sample_count=%d, sample_duration=%d\n",sample_count,sample_duration); |
4e5ef14f | 966 | |
7e815047 | 967 | duration+=(int64_t)sample_duration*sample_count; |
891f64b3 | 968 | total_sample_count+=sample_count; |
891f64b3 | 969 | } |
970 | ||
961e0ccd MN |
971 | st->nb_frames= total_sample_count; |
972 | if(duration) | |
973 | st->duration= duration; | |
0147f198 FR |
974 | return 0; |
975 | } | |
976 | ||
c4ac052b MN |
977 | static int mov_read_ctts(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) |
978 | { | |
70a61ed4 | 979 | AVStream *st = c->fc->streams[c->fc->nb_streams-1]; |
e4141433 | 980 | MOVStreamContext *sc = st->priv_data; |
c4ac052b MN |
981 | unsigned int i, entries; |
982 | ||
c4ac052b MN |
983 | get_byte(pb); /* version */ |
984 | get_byte(pb); get_byte(pb); get_byte(pb); /* flags */ | |
985 | entries = get_be32(pb); | |
e23848a4 | 986 | if(entries >= UINT_MAX / sizeof(MOV_stts_t)) |
c4ac052b MN |
987 | return -1; |
988 | ||
70a61ed4 | 989 | sc->ctts_count = entries; |
e23848a4 | 990 | sc->ctts_data = av_malloc(entries * sizeof(MOV_stts_t)); |
c1da59fa BC |
991 | if (!sc->ctts_data) |
992 | return -1; | |
318c5e05 | 993 | dprintf(c->fc, "track[%i].ctts.entries = %i\n", c->fc->nb_streams-1, entries); |
4e5ef14f | 994 | |
c4ac052b | 995 | for(i=0; i<entries; i++) { |
70a61ed4 MN |
996 | int count =get_be32(pb); |
997 | int duration =get_be32(pb); | |
998 | ||
b0519015 BC |
999 | if (duration < 0) { |
1000 | av_log(c->fc, AV_LOG_ERROR, "negative ctts, ignoring\n"); | |
1001 | sc->ctts_count = 0; | |
1002 | url_fskip(pb, 8 * (entries - i - 1)); | |
1003 | break; | |
1004 | } | |
70a61ed4 MN |
1005 | sc->ctts_data[i].count = count; |
1006 | sc->ctts_data[i].duration= duration; | |
1007 | ||
1008 | sc->time_rate= ff_gcd(sc->time_rate, duration); | |
c4ac052b MN |
1009 | } |
1010 | return 0; | |
1011 | } | |
1012 | ||
5ca1d879 ZK |
1013 | static int mov_read_trak(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) |
1014 | { | |
1015 | AVStream *st; | |
1016 | MOVStreamContext *sc; | |
1017 | ||
5ca1d879 ZK |
1018 | st = av_new_stream(c->fc, c->fc->nb_streams); |
1019 | if (!st) return -2; | |
9a630c25 | 1020 | sc = av_mallocz(sizeof(MOVStreamContext)); |
5ca1d879 | 1021 | if (!sc) { |
bb270c08 | 1022 | av_free(st); |
5ca1d879 ZK |
1023 | return -1; |
1024 | } | |
1025 | ||
5ca1d879 | 1026 | st->priv_data = sc; |
05edc1a7 | 1027 | st->codec->codec_type = CODEC_TYPE_DATA; |
25c4950e | 1028 | st->start_time = 0; /* XXX: check */ |
5ca1d879 ZK |
1029 | |
1030 | return mov_read_default(c, pb, atom); | |
1031 | } | |
1032 | ||
d2ace376 BF |
1033 | static void mov_parse_udta_string(ByteIOContext *pb, char *str, int size) |
1034 | { | |
1035 | uint16_t str_size = get_be16(pb); /* string length */; | |
1036 | ||
1037 | get_be16(pb); /* skip language */ | |
1038 | get_buffer(pb, str, FFMIN(size, str_size)); | |
1039 | } | |
1040 | ||
1041 | static int mov_read_udta(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) | |
1042 | { | |
1043 | uint64_t end = url_ftell(pb) + atom.size; | |
1044 | ||
1045 | while (url_ftell(pb) + 8 < end) { | |
1046 | uint32_t tag_size = get_be32(pb); | |
1047 | uint32_t tag = get_le32(pb); | |
1048 | uint64_t next = url_ftell(pb) + tag_size - 8; | |
1049 | ||
aaac6c29 BC |
1050 | if (next > end) // stop if tag_size is wrong |
1051 | break; | |
1052 | ||
d2ace376 BF |
1053 | switch (tag) { |
1054 | case MKTAG(0xa9,'n','a','m'): | |
1055 | mov_parse_udta_string(pb, c->fc->title, sizeof(c->fc->title)); | |
1056 | break; | |
1057 | case MKTAG(0xa9,'w','r','t'): | |
1058 | mov_parse_udta_string(pb, c->fc->author, sizeof(c->fc->author)); | |
1059 | break; | |
1060 | case MKTAG(0xa9,'c','p','y'): | |
1061 | mov_parse_udta_string(pb, c->fc->copyright, sizeof(c->fc->copyright)); | |
1062 | break; | |
1063 | case MKTAG(0xa9,'i','n','f'): | |
1064 | mov_parse_udta_string(pb, c->fc->comment, sizeof(c->fc->comment)); | |
1065 | break; | |
1066 | default: | |
1067 | break; | |
1068 | } | |
1069 | ||
1070 | url_fseek(pb, next, SEEK_SET); | |
1071 | } | |
1072 | ||
1073 | return 0; | |
1074 | } | |
1075 | ||
5ca1d879 ZK |
1076 | static int mov_read_tkhd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) |
1077 | { | |
f444b977 BC |
1078 | AVStream *st = c->fc->streams[c->fc->nb_streams-1]; |
1079 | int version = get_byte(pb); | |
5ca1d879 ZK |
1080 | |
1081 | get_byte(pb); get_byte(pb); | |
1082 | get_byte(pb); /* flags */ | |
1083 | /* | |
1084 | MOV_TRACK_ENABLED 0x0001 | |
1085 | MOV_TRACK_IN_MOVIE 0x0002 | |
1086 | MOV_TRACK_IN_PREVIEW 0x0004 | |
1087 | MOV_TRACK_IN_POSTER 0x0008 | |
1088 | */ | |
1089 | ||
1175561e BC |
1090 | if (version == 1) { |
1091 | get_be64(pb); | |
1092 | get_be64(pb); | |
1093 | } else { | |
1094 | get_be32(pb); /* creation time */ | |
1095 | get_be32(pb); /* modification time */ | |
1096 | } | |
5ca1d879 ZK |
1097 | st->id = (int)get_be32(pb); /* track id (NOT 0 !)*/ |
1098 | get_be32(pb); /* reserved */ | |
25c4950e | 1099 | st->start_time = 0; /* check */ |
1175561e | 1100 | (version == 1) ? get_be64(pb) : get_be32(pb); /* highlevel (considering edits) duration in movie timebase */ |
5ca1d879 ZK |
1101 | get_be32(pb); /* reserved */ |
1102 | get_be32(pb); /* reserved */ | |
1103 | ||
1104 | get_be16(pb); /* layer */ | |
1105 | get_be16(pb); /* alternate group */ | |
1106 | get_be16(pb); /* volume */ | |
1107 | get_be16(pb); /* reserved */ | |
1108 | ||
1109 | url_fskip(pb, 36); /* display matrix */ | |
1110 | ||
1111 | /* those are fixed-point */ | |
c3daf8d8 BC |
1112 | get_be32(pb); /* track width */ |
1113 | get_be32(pb); /* track height */ | |
5ca1d879 ZK |
1114 | |
1115 | return 0; | |
1116 | } | |
1117 | ||
1118 | /* this atom should be null (from specs), but some buggy files put the 'moov' atom inside it... */ | |
1119 | /* like the files created with Adobe Premiere 5.0, for samples see */ | |
1120 | /* http://graphics.tudelft.nl/~wouter/publications/soundtests/ */ | |
1121 | static int mov_read_wide(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) | |
1122 | { | |
1123 | int err; | |
5ca1d879 | 1124 | |
5ca1d879 ZK |
1125 | if (atom.size < 8) |
1126 | return 0; /* continue */ | |
1127 | if (get_be32(pb) != 0) { /* 0 sized mdat atom... use the 'wide' atom size */ | |
1128 | url_fskip(pb, atom.size - 4); | |
1129 | return 0; | |
1130 | } | |
1131 | atom.type = get_le32(pb); | |
1132 | atom.offset += 8; | |
1133 | atom.size -= 8; | |
fd6e513e | 1134 | if (atom.type != MKTAG('m', 'd', 'a', 't')) { |
5ca1d879 ZK |
1135 | url_fskip(pb, atom.size); |
1136 | return 0; | |
1137 | } | |
1138 | err = mov_read_mdat(c, pb, atom); | |
5ca1d879 ZK |
1139 | return err; |
1140 | } | |
1141 | ||
5ca1d879 | 1142 | static int mov_read_cmov(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) |
0147f198 | 1143 | { |
d966b2f0 | 1144 | #ifdef CONFIG_ZLIB |
0147f198 | 1145 | ByteIOContext ctx; |
b6a17df4 ZK |
1146 | uint8_t *cmov_data; |
1147 | uint8_t *moov_data; /* uncompressed data */ | |
0147f198 FR |
1148 | long cmov_len, moov_len; |
1149 | int ret; | |
b6a17df4 | 1150 | |
0147f198 FR |
1151 | get_be32(pb); /* dcom atom */ |
1152 | if (get_le32(pb) != MKTAG( 'd', 'c', 'o', 'm' )) | |
1153 | return -1; | |
1154 | if (get_le32(pb) != MKTAG( 'z', 'l', 'i', 'b' )) { | |
4e5ef14f | 1155 | av_log(NULL, AV_LOG_ERROR, "unknown compression for cmov atom !"); |
0147f198 FR |
1156 | return -1; |
1157 | } | |
1158 | get_be32(pb); /* cmvd atom */ | |
1159 | if (get_le32(pb) != MKTAG( 'c', 'm', 'v', 'd' )) | |
1160 | return -1; | |
1161 | moov_len = get_be32(pb); /* uncompressed size */ | |
5ca1d879 | 1162 | cmov_len = atom.size - 6 * 4; |
5cd62665 | 1163 | |
9a630c25 | 1164 | cmov_data = av_malloc(cmov_len); |
0147f198 FR |
1165 | if (!cmov_data) |
1166 | return -1; | |
9a630c25 | 1167 | moov_data = av_malloc(moov_len); |
0147f198 FR |
1168 | if (!moov_data) { |
1169 | av_free(cmov_data); | |
1170 | return -1; | |
1171 | } | |
1172 | get_buffer(pb, cmov_data, cmov_len); | |
b6a17df4 | 1173 | if(uncompress (moov_data, (uLongf *) &moov_len, (const Bytef *)cmov_data, cmov_len) != Z_OK) |
0147f198 | 1174 | return -1; |
942f3bb5 | 1175 | if(init_put_byte(&ctx, moov_data, moov_len, 0, NULL, NULL, NULL, NULL) != 0) |
0147f198 | 1176 | return -1; |
5ca1d879 ZK |
1177 | atom.type = MKTAG( 'm', 'o', 'o', 'v' ); |
1178 | atom.offset = 0; | |
1179 | atom.size = moov_len; | |
9ed83b0a | 1180 | #ifdef DEBUG |
dbb4f00a | 1181 | // { int fd = open("/tmp/uncompheader.mov", O_WRONLY | O_CREAT); write(fd, moov_data, moov_len); close(fd); } |
9ed83b0a | 1182 | #endif |
5ca1d879 | 1183 | ret = mov_read_default(c, &ctx, atom); |
0147f198 FR |
1184 | av_free(moov_data); |
1185 | av_free(cmov_data); | |
1186 | return ret; | |
d966b2f0 BC |
1187 | #else |
1188 | av_log(c->fc, AV_LOG_ERROR, "this file requires zlib support compiled in\n"); | |
1189 | return -1; | |
0147f198 | 1190 | #endif |
d966b2f0 | 1191 | } |
0147f198 | 1192 | |
baf25c9d GC |
1193 | /* edit list atom */ |
1194 | static int mov_read_elst(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom) | |
1195 | { | |
7c622eed | 1196 | MOVStreamContext *sc = c->fc->streams[c->fc->nb_streams-1]->priv_data; |
e0977c80 BC |
1197 | int i, edit_count; |
1198 | ||
1199 | get_byte(pb); /* version */ | |
1200 | get_byte(pb); get_byte(pb); get_byte(pb); /* flags */ | |
7c622eed | 1201 | edit_count= sc->edit_count = get_be32(pb); /* entries */ |
e0977c80 BC |
1202 | |
1203 | for(i=0; i<edit_count; i++){ | |
d435e520 | 1204 | int time; |
e0977c80 | 1205 | get_be32(pb); /* Track duration */ |
d435e520 | 1206 | time = get_be32(pb); /* Media time */ |
e0977c80 | 1207 | get_be32(pb); /* Media rate */ |
d435e520 BC |
1208 | if (time != 0) |
1209 | av_log(c->fc, AV_LOG_WARNING, "edit list not starting at 0, " | |
1210 | "a/v desync might occur, patch welcome\n"); | |
e0977c80 | 1211 | } |
7c622eed | 1212 | dprintf(c->fc, "track[%i].edit_count = %i\n", c->fc->nb_streams-1, sc->edit_count); |
e0977c80 | 1213 | return 0; |
baf25c9d GC |
1214 | } |
1215 | ||
6cea494e ZK |
1216 | static const MOVParseTableEntry mov_default_parse_table[] = { |
1217 | /* mp4 atoms */ | |
5ca1d879 | 1218 | { MKTAG( 'c', 'o', '6', '4' ), mov_read_stco }, |
c4ac052b | 1219 | { MKTAG( 'c', 't', 't', 's' ), mov_read_ctts }, /* composition time to sample */ |
5ca1d879 | 1220 | { MKTAG( 'e', 'd', 't', 's' ), mov_read_default }, |
58e555d4 | 1221 | { MKTAG( 'e', 'l', 's', 't' ), mov_read_elst }, |
de23f234 | 1222 | { MKTAG( 'e', 'n', 'd', 'a' ), mov_read_enda }, |
9a63497b | 1223 | { MKTAG( 'f', 'i', 'e', 'l' ), mov_read_extradata }, |
4ea28253 | 1224 | { MKTAG( 'f', 't', 'y', 'p' ), mov_read_ftyp }, |
bde24601 | 1225 | { MKTAG( 'g', 'l', 'b', 'l' ), mov_read_glbl }, |
5ca1d879 | 1226 | { MKTAG( 'h', 'd', 'l', 'r' ), mov_read_hdlr }, |
014a5102 | 1227 | { MKTAG( 'j', 'p', '2', 'h' ), mov_read_extradata }, |
5ca1d879 ZK |
1228 | { MKTAG( 'm', 'd', 'a', 't' ), mov_read_mdat }, |
1229 | { MKTAG( 'm', 'd', 'h', 'd' ), mov_read_mdhd }, | |
1230 | { MKTAG( 'm', 'd', 'i', 'a' ), mov_read_default }, | |
1231 | { MKTAG( 'm', 'i', 'n', 'f' ), mov_read_default }, | |
1232 | { MKTAG( 'm', 'o', 'o', 'v' ), mov_read_moov }, | |
5ca1d879 | 1233 | { MKTAG( 'm', 'v', 'h', 'd' ), mov_read_mvhd }, |
169eb021 | 1234 | { MKTAG( 'S', 'M', 'I', ' ' ), mov_read_smi }, /* Sorenson extension ??? */ |
014a5102 | 1235 | { MKTAG( 'a', 'l', 'a', 'c' ), mov_read_extradata }, /* alac specific atom */ |
bde24601 | 1236 | { MKTAG( 'a', 'v', 'c', 'C' ), mov_read_glbl }, |
5ca1d879 ZK |
1237 | { MKTAG( 's', 't', 'b', 'l' ), mov_read_default }, |
1238 | { MKTAG( 's', 't', 'c', 'o' ), mov_read_stco }, | |
5ca1d879 ZK |
1239 | { MKTAG( 's', 't', 's', 'c' ), mov_read_stsc }, |
1240 | { MKTAG( 's', 't', 's', 'd' ), mov_read_stsd }, /* sample description */ | |
247d56f5 | 1241 | { MKTAG( 's', 't', 's', 's' ), mov_read_stss }, /* sync sample */ |
5ca1d879 ZK |
1242 | { MKTAG( 's', 't', 's', 'z' ), mov_read_stsz }, /* sample size */ |
1243 | { MKTAG( 's', 't', 't', 's' ), mov_read_stts }, | |
1244 | { MKTAG( 't', 'k', 'h', 'd' ), mov_read_tkhd }, /* track header */ | |
1245 | { MKTAG( 't', 'r', 'a', 'k' ), mov_read_trak }, | |
d2ace376 | 1246 | { MKTAG( 'u', 'd', 't', 'a' ), mov_read_udta }, |
d9b1c197 | 1247 | { MKTAG( 'w', 'a', 'v', 'e' ), mov_read_wave }, |
5ca1d879 | 1248 | { MKTAG( 'e', 's', 'd', 's' ), mov_read_esds }, |
5ca1d879 | 1249 | { MKTAG( 'w', 'i', 'd', 'e' ), mov_read_wide }, /* place holder */ |
5ca1d879 | 1250 | { MKTAG( 'c', 'm', 'o', 'v' ), mov_read_cmov }, |
bcfe2ba0 | 1251 | { 0, NULL } |
6cea494e ZK |
1252 | }; |
1253 | ||
b6a17df4 | 1254 | /* XXX: is it sufficient ? */ |
c9a65ca8 FB |
1255 | static int mov_probe(AVProbeData *p) |
1256 | { | |
0e7eed09 FB |
1257 | unsigned int offset; |
1258 | uint32_t tag; | |
2497479f | 1259 | int score = 0; |
3ffe3793 | 1260 | |
c9a65ca8 | 1261 | /* check file header */ |
0e7eed09 FB |
1262 | offset = 0; |
1263 | for(;;) { | |
1264 | /* ignore invalid offset */ | |
1265 | if ((offset + 8) > (unsigned int)p->buf_size) | |
2497479f | 1266 | return score; |
fead30d4 | 1267 | tag = AV_RL32(p->buf + offset + 4); |
0e7eed09 | 1268 | switch(tag) { |
2497479f | 1269 | /* check for obvious tags */ |
fc5188f3 | 1270 | case MKTAG( 'j', 'P', ' ', ' ' ): /* jpeg 2000 signature */ |
0e7eed09 | 1271 | case MKTAG( 'm', 'o', 'o', 'v' ): |
8b879f18 FR |
1272 | case MKTAG( 'm', 'd', 'a', 't' ): |
1273 | case MKTAG( 'p', 'n', 'o', 't' ): /* detect movs with preview pics like ew.mov and april.mov */ | |
bc634f6f | 1274 | case MKTAG( 'u', 'd', 't', 'a' ): /* Packet Video PVAuthor adds this and a lot of more junk */ |
3ffe3793 | 1275 | return AVPROBE_SCORE_MAX; |
2497479f | 1276 | /* those are more common words, so rate then a bit less */ |
263a93ec | 1277 | case MKTAG( 'e', 'd', 'i', 'w' ): /* xdcam files have reverted first tags */ |
2497479f FR |
1278 | case MKTAG( 'w', 'i', 'd', 'e' ): |
1279 | case MKTAG( 'f', 'r', 'e', 'e' ): | |
1280 | case MKTAG( 'j', 'u', 'n', 'k' ): | |
1281 | case MKTAG( 'p', 'i', 'c', 't' ): | |
1282 | return AVPROBE_SCORE_MAX - 5; | |
0e7eed09 | 1283 | case MKTAG( 'f', 't', 'y', 'p' ): |
5ca1d879 | 1284 | case MKTAG( 's', 'k', 'i', 'p' ): |
0d23cb84 | 1285 | case MKTAG( 'u', 'u', 'i', 'd' ): |
fead30d4 | 1286 | offset = AV_RB32(p->buf+offset) + offset; |
2497479f FR |
1287 | /* if we only find those cause probedata is too small at least rate them */ |
1288 | score = AVPROBE_SCORE_MAX - 50; | |
0e7eed09 FB |
1289 | break; |
1290 | default: | |
1291 | /* unrecognized tag */ | |
2497479f | 1292 | return score; |
0e7eed09 | 1293 | } |
3ffe3793 | 1294 | } |
2497479f | 1295 | return score; |
c9a65ca8 FB |
1296 | } |
1297 | ||
b72708f8 BC |
1298 | static void mov_build_index(MOVContext *mov, AVStream *st) |
1299 | { | |
1300 | MOVStreamContext *sc = st->priv_data; | |
1301 | offset_t current_offset; | |
1302 | int64_t current_dts = 0; | |
01aa1937 BC |
1303 | unsigned int stts_index = 0; |
1304 | unsigned int stsc_index = 0; | |
1305 | unsigned int stss_index = 0; | |
53152765 | 1306 | unsigned int i, j; |
b72708f8 | 1307 | |
77c75437 BC |
1308 | if (sc->sample_sizes || st->codec->codec_type == CODEC_TYPE_VIDEO || |
1309 | sc->audio_cid == -2) { | |
01aa1937 BC |
1310 | unsigned int current_sample = 0; |
1311 | unsigned int stts_sample = 0; | |
1312 | unsigned int keyframe, sample_size; | |
1313 | unsigned int distance = 0; | |
b72708f8 BC |
1314 | |
1315 | st->nb_frames = sc->sample_count; | |
1316 | for (i = 0; i < sc->chunk_count; i++) { | |
1317 | current_offset = sc->chunk_offsets[i]; | |
29c90869 BC |
1318 | if (stsc_index + 1 < sc->sample_to_chunk_sz && |
1319 | i + 1 == sc->sample_to_chunk[stsc_index + 1].first) | |
b72708f8 BC |
1320 | stsc_index++; |
1321 | for (j = 0; j < sc->sample_to_chunk[stsc_index].count; j++) { | |
64934877 BC |
1322 | if (current_sample >= sc->sample_count) { |
1323 | av_log(mov->fc, AV_LOG_ERROR, "wrong sample count\n"); | |
1324 | goto out; | |
1325 | } | |
b72708f8 BC |
1326 | keyframe = !sc->keyframe_count || current_sample + 1 == sc->keyframes[stss_index]; |
1327 | if (keyframe) { | |
1328 | distance = 0; | |
1329 | if (stss_index + 1 < sc->keyframe_count) | |
1330 | stss_index++; | |
1331 | } | |
1332 | sample_size = sc->sample_size > 0 ? sc->sample_size : sc->sample_sizes[current_sample]; | |
29c90869 BC |
1333 | dprintf(mov->fc, "AVIndex stream %d, sample %d, offset %"PRIx64", dts %"PRId64", " |
1334 | "size %d, distance %d, keyframe %d\n", st->index, current_sample, | |
1335 | current_offset, current_dts, sample_size, distance, keyframe); | |
ee6e2dbe | 1336 | if(sc->sample_to_chunk[stsc_index].id - 1 == sc->pseudo_stream_id) |
41e19673 MN |
1337 | av_add_index_entry(st, current_offset, current_dts, sample_size, distance, |
1338 | keyframe ? AVINDEX_KEYFRAME : 0); | |
b72708f8 BC |
1339 | current_offset += sample_size; |
1340 | assert(sc->stts_data[stts_index].duration % sc->time_rate == 0); | |
1341 | current_dts += sc->stts_data[stts_index].duration / sc->time_rate; | |
1342 | distance++; | |
1343 | stts_sample++; | |
64934877 | 1344 | current_sample++; |
b72708f8 BC |
1345 | if (stts_index + 1 < sc->stts_count && stts_sample == sc->stts_data[stts_index].count) { |
1346 | stts_sample = 0; | |
1347 | stts_index++; | |
1348 | } | |
1349 | } | |
1350 | } | |
1351 | } else { /* read whole chunk */ | |
01aa1937 | 1352 | unsigned int chunk_samples, chunk_size, chunk_duration; |
8cb66fd8 | 1353 | unsigned int frames = 1; |
b72708f8 BC |
1354 | for (i = 0; i < sc->chunk_count; i++) { |
1355 | current_offset = sc->chunk_offsets[i]; | |
29c90869 BC |
1356 | if (stsc_index + 1 < sc->sample_to_chunk_sz && |
1357 | i + 1 == sc->sample_to_chunk[stsc_index + 1].first) | |
b72708f8 BC |
1358 | stsc_index++; |
1359 | chunk_samples = sc->sample_to_chunk[stsc_index].count; | |
501f162f BC |
1360 | /* get chunk size, beware of alaw/ulaw/mace */ |
1361 | if (sc->samples_per_frame > 0 && | |
1362 | (chunk_samples * sc->bytes_per_frame % sc->samples_per_frame == 0)) { | |
311490cc BC |
1363 | if (sc->samples_per_frame < 1024) |
1364 | chunk_size = chunk_samples * sc->bytes_per_frame / sc->samples_per_frame; | |
1365 | else { | |
1366 | chunk_size = sc->bytes_per_frame; | |
1367 | frames = chunk_samples / sc->samples_per_frame; | |
1368 | chunk_samples = sc->samples_per_frame; | |
8cb66fd8 | 1369 | } |
501f162f BC |
1370 | } else if (sc->sample_size > 1 || st->codec->bits_per_sample == 8) { |
1371 | chunk_size = chunk_samples * sc->sample_size; | |
53152765 BC |
1372 | } else { |
1373 | av_log(mov->fc, AV_LOG_ERROR, "could not determine chunk size, report problem\n"); | |
1374 | goto out; | |
b72708f8 | 1375 | } |
8cb66fd8 | 1376 | for (j = 0; j < frames; j++) { |
18978a49 BC |
1377 | av_add_index_entry(st, current_offset, current_dts, chunk_size, 0, AVINDEX_KEYFRAME); |
1378 | /* get chunk duration */ | |
1379 | chunk_duration = 0; | |
1380 | while (chunk_samples > 0) { | |
1381 | if (chunk_samples < sc->stts_data[stts_index].count) { | |
1382 | chunk_duration += sc->stts_data[stts_index].duration * chunk_samples; | |
1383 | sc->stts_data[stts_index].count -= chunk_samples; | |
1384 | break; | |
1385 | } else { | |
1386 | chunk_duration += sc->stts_data[stts_index].duration * chunk_samples; | |
1387 | chunk_samples -= sc->stts_data[stts_index].count; | |
1388 | if (stts_index + 1 < sc->stts_count) | |
1389 | stts_index++; | |
1390 | } | |
b72708f8 | 1391 | } |
18978a49 BC |
1392 | current_offset += sc->bytes_per_frame; |
1393 | dprintf(mov->fc, "AVIndex stream %d, chunk %d, offset %"PRIx64", dts %"PRId64", size %d, " | |
1394 | "duration %d\n", st->index, i, current_offset, current_dts, chunk_size, chunk_duration); | |
1395 | assert(chunk_duration % sc->time_rate == 0); | |
1396 | current_dts += chunk_duration / sc->time_rate; | |
8cb66fd8 | 1397 | } |
b72708f8 | 1398 | } |
b72708f8 | 1399 | } |
64934877 | 1400 | out: |
1f1890c7 BC |
1401 | /* adjust sample count to avindex entries */ |
1402 | sc->sample_count = st->nb_index_entries; | |
b72708f8 BC |
1403 | } |
1404 | ||
a266644f | 1405 | static int mov_read_header(AVFormatContext *s, AVFormatParameters *ap) |
6cea494e | 1406 | { |
e4141433 | 1407 | MOVContext *mov = s->priv_data; |
899681cd | 1408 | ByteIOContext *pb = s->pb; |
05edc1a7 | 1409 | int i, err; |
5ca1d879 | 1410 | MOV_atom_t atom = { 0, 0, 0 }; |
6cea494e | 1411 | |
6cea494e | 1412 | mov->fc = s; |
3253c51f | 1413 | |
6cea494e | 1414 | if(!url_is_streamed(pb)) /* .mov and .mp4 aren't streamable anyway (only progressive download if moov is before mdat) */ |
bb270c08 | 1415 | atom.size = url_fsize(pb); |
6cea494e | 1416 | else |
fa22ca22 | 1417 | atom.size = INT64_MAX; |
6cea494e | 1418 | |
6cea494e | 1419 | /* check MOV header */ |
5ca1d879 | 1420 | err = mov_read_default(mov, pb, atom); |
25fa62e1 | 1421 | if (err<0 || (!mov->found_moov && !mov->found_mdat)) { |
bb270c08 DB |
1422 | av_log(s, AV_LOG_ERROR, "mov: header not found !!! (err:%d, moov:%d, mdat:%d) pos:%"PRId64"\n", |
1423 | err, mov->found_moov, mov->found_mdat, url_ftell(pb)); | |
1424 | return -1; | |
6cea494e | 1425 | } |
318c5e05 | 1426 | dprintf(mov->fc, "on_parse_exit_offset=%d\n", (int) url_ftell(pb)); |
4e5ef14f | 1427 | |
11f16b66 | 1428 | for(i=0; i<s->nb_streams; i++) { |
2d2432b7 | 1429 | AVStream *st = s->streams[i]; |
7c622eed | 1430 | MOVStreamContext *sc = st->priv_data; |
dfcf8d57 BC |
1431 | /* sanity checks */ |
1432 | if(!sc->stts_count || !sc->chunk_count || !sc->sample_to_chunk_sz || | |
1433 | (!sc->sample_size && !sc->sample_count)){ | |
1434 | av_log(s, AV_LOG_ERROR, "missing mandatory atoms, broken header\n"); | |
a097e559 | 1435 | sc->sample_count = 0; //ignore track |
b0c17f77 | 1436 | continue; |
dfcf8d57 | 1437 | } |
05edc1a7 BC |
1438 | if(!sc->time_rate) |
1439 | sc->time_rate=1; | |
1440 | if(!sc->time_scale) | |
1441 | sc->time_scale= mov->time_scale; | |
638fd2fc | 1442 | av_set_pts_info(st, 64, sc->time_rate, sc->time_scale); |
05edc1a7 | 1443 | |
2d2432b7 | 1444 | if (st->codec->codec_type == CODEC_TYPE_AUDIO && sc->stts_count == 1) |
6d680e1b | 1445 | st->codec->frame_size = av_rescale(sc->time_rate, st->codec->sample_rate, sc->time_scale); |
2d2432b7 | 1446 | |
638fd2fc BC |
1447 | if(st->duration != AV_NOPTS_VALUE){ |
1448 | assert(st->duration % sc->time_rate == 0); | |
1449 | st->duration /= sc->time_rate; | |
75b5b631 | 1450 | } |
05edc1a7 | 1451 | sc->ffindex = i; |
638fd2fc | 1452 | mov_build_index(mov, st); |
f296563e BC |
1453 | |
1454 | switch (st->codec->codec_id) { | |
1455 | #ifdef CONFIG_H261_DECODER | |
1456 | case CODEC_ID_H261: | |
1457 | #endif | |
1458 | #ifdef CONFIG_H263_DECODER | |
1459 | case CODEC_ID_H263: | |
1460 | #endif | |
1461 | #ifdef CONFIG_MPEG4_DECODER | |
1462 | case CODEC_ID_MPEG4: | |
1463 | #endif | |
1464 | st->codec->width= 0; /* let decoder init width/height */ | |
1465 | st->codec->height= 0; | |
1466 | break; | |
1467 | #ifdef CONFIG_LIBFAAD | |
1468 | case CODEC_ID_AAC: | |
1469 | #endif | |
1470 | #ifdef CONFIG_VORBIS_DECODER | |
1471 | case CODEC_ID_VORBIS: | |
1472 | #endif | |
1473 | case CODEC_ID_MP3ON4: | |
1474 | st->codec->sample_rate= 0; /* let decoder init parameters properly */ | |
1475 | break; | |
1476 | } | |
6cea494e | 1477 | } |
a2fe3b58 | 1478 | |
11f16b66 | 1479 | for(i=0; i<s->nb_streams; i++) { |
7c622eed | 1480 | MOVStreamContext *sc = s->streams[i]->priv_data; |
755bfeab | 1481 | /* Do not need those anymore. */ |
7c622eed BC |
1482 | av_freep(&sc->chunk_offsets); |
1483 | av_freep(&sc->sample_to_chunk); | |
1484 | av_freep(&sc->sample_sizes); | |
1485 | av_freep(&sc->keyframes); | |
1486 | av_freep(&sc->stts_data); | |
b72708f8 | 1487 | } |
6cea494e ZK |
1488 | return 0; |
1489 | } | |
1490 | ||
a266644f | 1491 | static int mov_read_packet(AVFormatContext *s, AVPacket *pkt) |
6cea494e | 1492 | { |
b72708f8 BC |
1493 | MOVContext *mov = s->priv_data; |
1494 | MOVStreamContext *sc = 0; | |
1495 | AVIndexEntry *sample = 0; | |
86d8602f | 1496 | int64_t best_dts = INT64_MAX; |
b72708f8 | 1497 | int i; |
3ffe3793 | 1498 | |
11f16b66 | 1499 | for (i = 0; i < s->nb_streams; i++) { |
7c622eed BC |
1500 | AVStream *st = s->streams[i]; |
1501 | MOVStreamContext *msc = st->priv_data; | |
1502 | if (st->discard != AVDISCARD_ALL && msc->current_sample < msc->sample_count) { | |
1503 | AVIndexEntry *current_sample = &st->index_entries[msc->current_sample]; | |
29c90869 BC |
1504 | int64_t dts = av_rescale(current_sample->timestamp * (int64_t)msc->time_rate, |
1505 | AV_TIME_BASE, msc->time_scale); | |
1c02d96f | 1506 | dprintf(s, "stream %d, sample %d, dts %"PRId64"\n", i, msc->current_sample, dts); |
687f35f3 BC |
1507 | if (!sample || (url_is_streamed(s->pb) && current_sample->pos < sample->pos) || |
1508 | (!url_is_streamed(s->pb) && | |
1509 | ((FFABS(best_dts - dts) <= AV_TIME_BASE && current_sample->pos < sample->pos) || | |
1510 | (FFABS(best_dts - dts) > AV_TIME_BASE && dts < best_dts)))) { | |
b72708f8 BC |
1511 | sample = current_sample; |
1512 | best_dts = dts; | |
1513 | sc = msc; | |
86d8602f | 1514 | } |
6cea494e | 1515 | } |
6cea494e | 1516 | } |
b72708f8 BC |
1517 | if (!sample) |
1518 | return -1; | |
1519 | /* must be done just before reading, to avoid infinite loop on sample */ | |
1520 | sc->current_sample++; | |
687f35f3 | 1521 | if (url_fseek(s->pb, sample->pos, SEEK_SET) != sample->pos) { |
29c90869 BC |
1522 | av_log(mov->fc, AV_LOG_ERROR, "stream %d, offset 0x%"PRIx64": partial file\n", |
1523 | sc->ffindex, sample->pos); | |
bb270c08 | 1524 | return -1; |
6cea494e | 1525 | } |
56ea717b | 1526 | av_get_packet(s->pb, pkt, sample->size); |
312954f0 | 1527 | #ifdef CONFIG_DV_DEMUXER |
56ea717b BC |
1528 | if (mov->dv_demux && sc->dv_audio_container) { |
1529 | dv_produce_packet(mov->dv_demux, pkt, pkt->data, pkt->size); | |
1530 | av_free(pkt->data); | |
300aa2b0 BC |
1531 | pkt->size = 0; |
1532 | if (dv_get_packet(mov->dv_demux, pkt) < 0) | |
1533 | return -1; | |
56ea717b | 1534 | } |
312954f0 | 1535 | #endif |
b72708f8 BC |
1536 | pkt->stream_index = sc->ffindex; |
1537 | pkt->dts = sample->timestamp; | |
1538 | if (sc->ctts_data) { | |
1539 | assert(sc->ctts_data[sc->sample_to_ctime_index].duration % sc->time_rate == 0); | |
1540 | pkt->pts = pkt->dts + sc->ctts_data[sc->sample_to_ctime_index].duration / sc->time_rate; | |
1541 | /* update ctts context */ | |
1542 | sc->sample_to_ctime_sample++; | |
29c90869 BC |
1543 | if (sc->sample_to_ctime_index < sc->ctts_count && |
1544 | sc->ctts_data[sc->sample_to_ctime_index].count == sc->sample_to_ctime_sample) { | |
b72708f8 BC |
1545 | sc->sample_to_ctime_index++; |
1546 | sc->sample_to_ctime_sample = 0; | |
b565ea09 | 1547 | } |
b72708f8 BC |
1548 | } else { |
1549 | pkt->pts = pkt->dts; | |
b565ea09 | 1550 | } |
b72708f8 BC |
1551 | pkt->flags |= sample->flags & AVINDEX_KEYFRAME ? PKT_FLAG_KEY : 0; |
1552 | pkt->pos = sample->pos; | |
29c90869 BC |
1553 | dprintf(s, "stream %d, pts %"PRId64", dts %"PRId64", pos 0x%"PRIx64", duration %d\n", |
1554 | pkt->stream_index, pkt->pts, pkt->dts, pkt->pos, pkt->duration); | |
b72708f8 BC |
1555 | return 0; |
1556 | } | |
3ffe3793 | 1557 | |
b72708f8 BC |
1558 | static int mov_seek_stream(AVStream *st, int64_t timestamp, int flags) |
1559 | { | |
1560 | MOVStreamContext *sc = st->priv_data; | |
1561 | int sample, time_sample; | |
1562 | int i; | |
115329f1 | 1563 | |
b72708f8 | 1564 | sample = av_index_search_timestamp(st, timestamp, flags); |
318c5e05 | 1565 | dprintf(st->codec, "stream %d, timestamp %"PRId64", sample %d\n", st->index, timestamp, sample); |
b72708f8 BC |
1566 | if (sample < 0) /* not sure what to do */ |
1567 | return -1; | |
1568 | sc->current_sample = sample; | |
1c02d96f | 1569 | dprintf(st->codec, "stream %d, found sample %d\n", st->index, sc->current_sample); |
b72708f8 BC |
1570 | /* adjust ctts index */ |
1571 | if (sc->ctts_data) { | |
1572 | time_sample = 0; | |
1573 | for (i = 0; i < sc->ctts_count; i++) { | |
54a5c719 BC |
1574 | int next = time_sample + sc->ctts_data[i].count; |
1575 | if (next > sc->current_sample) { | |
b72708f8 | 1576 | sc->sample_to_ctime_index = i; |
54a5c719 | 1577 | sc->sample_to_ctime_sample = sc->current_sample - time_sample; |
b72708f8 | 1578 | break; |
115329f1 | 1579 | } |
54a5c719 | 1580 | time_sample = next; |
247d56f5 | 1581 | } |
247d56f5 | 1582 | } |
b72708f8 | 1583 | return sample; |
6cea494e ZK |
1584 | } |
1585 | ||
961e0ccd | 1586 | static int mov_read_seek(AVFormatContext *s, int stream_index, int64_t sample_time, int flags) |
baf25c9d | 1587 | { |
b72708f8 BC |
1588 | AVStream *st; |
1589 | int64_t seek_timestamp, timestamp; | |
1590 | int sample; | |
1591 | int i; | |
baf25c9d | 1592 | |
b72708f8 | 1593 | if (stream_index >= s->nb_streams) |
baf25c9d | 1594 | return -1; |
baf25c9d | 1595 | |
b72708f8 BC |
1596 | st = s->streams[stream_index]; |
1597 | sample = mov_seek_stream(st, sample_time, flags); | |
1598 | if (sample < 0) | |
baf25c9d | 1599 | return -1; |
baf25c9d | 1600 | |
b72708f8 BC |
1601 | /* adjust seek timestamp to found sample timestamp */ |
1602 | seek_timestamp = st->index_entries[sample].timestamp; | |
baf25c9d | 1603 | |
b72708f8 BC |
1604 | for (i = 0; i < s->nb_streams; i++) { |
1605 | st = s->streams[i]; | |
1606 | if (stream_index == i || st->discard == AVDISCARD_ALL) | |
1607 | continue; | |
baf25c9d | 1608 | |
b72708f8 BC |
1609 | timestamp = av_rescale_q(seek_timestamp, s->streams[stream_index]->time_base, st->time_base); |
1610 | mov_seek_stream(st, timestamp, flags); | |
115329f1 | 1611 | } |
baf25c9d GC |
1612 | return 0; |
1613 | } | |
baf25c9d | 1614 | |
a266644f | 1615 | static int mov_read_close(AVFormatContext *s) |
6cea494e ZK |
1616 | { |
1617 | int i; | |
e4141433 | 1618 | MOVContext *mov = s->priv_data; |
11f16b66 | 1619 | for(i=0; i<s->nb_streams; i++) { |
7c622eed BC |
1620 | MOVStreamContext *sc = s->streams[i]->priv_data; |
1621 | av_freep(&sc->ctts_data); | |
4440b118 | 1622 | } |
b60c0454 BC |
1623 | if(mov->dv_demux){ |
1624 | for(i=0; i<mov->dv_fctx->nb_streams; i++){ | |
1625 | av_freep(&mov->dv_fctx->streams[i]->codec); | |
1626 | av_freep(&mov->dv_fctx->streams[i]); | |
1627 | } | |
1628 | av_freep(&mov->dv_fctx); | |
1629 | av_freep(&mov->dv_demux); | |
1630 | } | |
6cea494e ZK |
1631 | return 0; |
1632 | } | |
1633 | ||
ff70e601 | 1634 | AVInputFormat mov_demuxer = { |
fc5188f3 BC |
1635 | "mov,mp4,m4a,3gp,3g2,mj2", |
1636 | "QuickTime/MPEG4/Motion JPEG 2000 format", | |
c9a65ca8 FB |
1637 | sizeof(MOVContext), |
1638 | mov_probe, | |
6cea494e ZK |
1639 | mov_read_header, |
1640 | mov_read_packet, | |
1641 | mov_read_close, | |
baf25c9d | 1642 | mov_read_seek, |
6cea494e | 1643 | }; |