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2ba45a60 DM |
1 | /* |
2 | * Monkey's Audio APE demuxer | |
3 | * Copyright (c) 2007 Benjamin Zores <ben@geexbox.org> | |
4 | * based upon libdemac from Dave Chapman. | |
5 | * | |
6 | * This file is part of FFmpeg. | |
7 | * | |
8 | * FFmpeg is free software; you can redistribute it and/or | |
9 | * modify it under the terms of the GNU Lesser General Public | |
10 | * License as published by the Free Software Foundation; either | |
11 | * version 2.1 of the License, or (at your option) any later version. | |
12 | * | |
13 | * FFmpeg is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | * Lesser General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU Lesser General Public | |
19 | * License along with FFmpeg; if not, write to the Free Software | |
20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
21 | */ | |
22 | ||
23 | #include <stdio.h> | |
24 | ||
25 | #include "libavutil/intreadwrite.h" | |
26 | #include "avformat.h" | |
27 | #include "internal.h" | |
28 | #include "apetag.h" | |
29 | ||
30 | /* The earliest and latest file formats supported by this library */ | |
31 | #define APE_MIN_VERSION 3800 | |
32 | #define APE_MAX_VERSION 3990 | |
33 | ||
34 | #define MAC_FORMAT_FLAG_8_BIT 1 // is 8-bit [OBSOLETE] | |
35 | #define MAC_FORMAT_FLAG_CRC 2 // uses the new CRC32 error detection [OBSOLETE] | |
36 | #define MAC_FORMAT_FLAG_HAS_PEAK_LEVEL 4 // uint32 nPeakLevel after the header [OBSOLETE] | |
37 | #define MAC_FORMAT_FLAG_24_BIT 8 // is 24-bit [OBSOLETE] | |
38 | #define MAC_FORMAT_FLAG_HAS_SEEK_ELEMENTS 16 // has the number of seek elements after the peak level | |
39 | #define MAC_FORMAT_FLAG_CREATE_WAV_HEADER 32 // create the wave header on decompression (not stored) | |
40 | ||
41 | #define APE_EXTRADATA_SIZE 6 | |
42 | ||
43 | typedef struct { | |
44 | int64_t pos; | |
45 | int nblocks; | |
46 | int size; | |
47 | int skip; | |
48 | int64_t pts; | |
49 | } APEFrame; | |
50 | ||
51 | typedef struct { | |
52 | /* Derived fields */ | |
53 | uint32_t junklength; | |
54 | uint32_t firstframe; | |
55 | uint32_t totalsamples; | |
56 | int currentframe; | |
57 | APEFrame *frames; | |
58 | ||
59 | /* Info from Descriptor Block */ | |
60 | char magic[4]; | |
61 | int16_t fileversion; | |
62 | int16_t padding1; | |
63 | uint32_t descriptorlength; | |
64 | uint32_t headerlength; | |
65 | uint32_t seektablelength; | |
66 | uint32_t wavheaderlength; | |
67 | uint32_t audiodatalength; | |
68 | uint32_t audiodatalength_high; | |
69 | uint32_t wavtaillength; | |
70 | uint8_t md5[16]; | |
71 | ||
72 | /* Info from Header Block */ | |
73 | uint16_t compressiontype; | |
74 | uint16_t formatflags; | |
75 | uint32_t blocksperframe; | |
76 | uint32_t finalframeblocks; | |
77 | uint32_t totalframes; | |
78 | uint16_t bps; | |
79 | uint16_t channels; | |
80 | uint32_t samplerate; | |
81 | ||
82 | /* Seektable */ | |
83 | uint32_t *seektable; | |
84 | uint8_t *bittable; | |
85 | } APEContext; | |
86 | ||
87 | static int ape_probe(AVProbeData * p) | |
88 | { | |
89 | int version = AV_RL16(p->buf+4); | |
90 | if (AV_RL32(p->buf) != MKTAG('M', 'A', 'C', ' ')) | |
91 | return 0; | |
92 | ||
93 | if (version < APE_MIN_VERSION || version > APE_MAX_VERSION) | |
94 | return AVPROBE_SCORE_MAX/4; | |
95 | ||
96 | return AVPROBE_SCORE_MAX; | |
97 | } | |
98 | ||
99 | static void ape_dumpinfo(AVFormatContext * s, APEContext * ape_ctx) | |
100 | { | |
101 | #ifdef DEBUG | |
102 | int i; | |
103 | ||
104 | av_log(s, AV_LOG_DEBUG, "Descriptor Block:\n\n"); | |
105 | av_log(s, AV_LOG_DEBUG, "magic = \"%c%c%c%c\"\n", ape_ctx->magic[0], ape_ctx->magic[1], ape_ctx->magic[2], ape_ctx->magic[3]); | |
106 | av_log(s, AV_LOG_DEBUG, "fileversion = %"PRId16"\n", ape_ctx->fileversion); | |
107 | av_log(s, AV_LOG_DEBUG, "descriptorlength = %"PRIu32"\n", ape_ctx->descriptorlength); | |
108 | av_log(s, AV_LOG_DEBUG, "headerlength = %"PRIu32"\n", ape_ctx->headerlength); | |
109 | av_log(s, AV_LOG_DEBUG, "seektablelength = %"PRIu32"\n", ape_ctx->seektablelength); | |
110 | av_log(s, AV_LOG_DEBUG, "wavheaderlength = %"PRIu32"\n", ape_ctx->wavheaderlength); | |
111 | av_log(s, AV_LOG_DEBUG, "audiodatalength = %"PRIu32"\n", ape_ctx->audiodatalength); | |
112 | av_log(s, AV_LOG_DEBUG, "audiodatalength_high = %"PRIu32"\n", ape_ctx->audiodatalength_high); | |
113 | av_log(s, AV_LOG_DEBUG, "wavtaillength = %"PRIu32"\n", ape_ctx->wavtaillength); | |
114 | av_log(s, AV_LOG_DEBUG, "md5 = "); | |
115 | for (i = 0; i < 16; i++) | |
116 | av_log(s, AV_LOG_DEBUG, "%02x", ape_ctx->md5[i]); | |
117 | av_log(s, AV_LOG_DEBUG, "\n"); | |
118 | ||
119 | av_log(s, AV_LOG_DEBUG, "\nHeader Block:\n\n"); | |
120 | ||
121 | av_log(s, AV_LOG_DEBUG, "compressiontype = %"PRIu16"\n", ape_ctx->compressiontype); | |
122 | av_log(s, AV_LOG_DEBUG, "formatflags = %"PRIu16"\n", ape_ctx->formatflags); | |
123 | av_log(s, AV_LOG_DEBUG, "blocksperframe = %"PRIu32"\n", ape_ctx->blocksperframe); | |
124 | av_log(s, AV_LOG_DEBUG, "finalframeblocks = %"PRIu32"\n", ape_ctx->finalframeblocks); | |
125 | av_log(s, AV_LOG_DEBUG, "totalframes = %"PRIu32"\n", ape_ctx->totalframes); | |
126 | av_log(s, AV_LOG_DEBUG, "bps = %"PRIu16"\n", ape_ctx->bps); | |
127 | av_log(s, AV_LOG_DEBUG, "channels = %"PRIu16"\n", ape_ctx->channels); | |
128 | av_log(s, AV_LOG_DEBUG, "samplerate = %"PRIu32"\n", ape_ctx->samplerate); | |
129 | ||
130 | av_log(s, AV_LOG_DEBUG, "\nSeektable\n\n"); | |
131 | if ((ape_ctx->seektablelength / sizeof(uint32_t)) != ape_ctx->totalframes) { | |
132 | av_log(s, AV_LOG_DEBUG, "No seektable\n"); | |
133 | } else { | |
134 | for (i = 0; i < ape_ctx->seektablelength / sizeof(uint32_t); i++) { | |
135 | if (i < ape_ctx->totalframes - 1) { | |
136 | av_log(s, AV_LOG_DEBUG, "%8d %"PRIu32" (%"PRIu32" bytes)", | |
137 | i, ape_ctx->seektable[i], | |
138 | ape_ctx->seektable[i + 1] - ape_ctx->seektable[i]); | |
139 | if (ape_ctx->bittable) | |
140 | av_log(s, AV_LOG_DEBUG, " + %2d bits\n", | |
141 | ape_ctx->bittable[i]); | |
142 | av_log(s, AV_LOG_DEBUG, "\n"); | |
143 | } else { | |
144 | av_log(s, AV_LOG_DEBUG, "%8d %"PRIu32"\n", i, ape_ctx->seektable[i]); | |
145 | } | |
146 | } | |
147 | } | |
148 | ||
149 | av_log(s, AV_LOG_DEBUG, "\nFrames\n\n"); | |
150 | for (i = 0; i < ape_ctx->totalframes; i++) | |
151 | av_log(s, AV_LOG_DEBUG, "%8d %8"PRId64" %8d (%d samples)\n", i, | |
152 | ape_ctx->frames[i].pos, ape_ctx->frames[i].size, | |
153 | ape_ctx->frames[i].nblocks); | |
154 | ||
155 | av_log(s, AV_LOG_DEBUG, "\nCalculated information:\n\n"); | |
156 | av_log(s, AV_LOG_DEBUG, "junklength = %"PRIu32"\n", ape_ctx->junklength); | |
157 | av_log(s, AV_LOG_DEBUG, "firstframe = %"PRIu32"\n", ape_ctx->firstframe); | |
158 | av_log(s, AV_LOG_DEBUG, "totalsamples = %"PRIu32"\n", ape_ctx->totalsamples); | |
159 | #endif | |
160 | } | |
161 | ||
162 | static int ape_read_header(AVFormatContext * s) | |
163 | { | |
164 | AVIOContext *pb = s->pb; | |
165 | APEContext *ape = s->priv_data; | |
166 | AVStream *st; | |
167 | uint32_t tag; | |
168 | int i; | |
169 | int total_blocks, final_size = 0; | |
170 | int64_t pts, file_size; | |
171 | ||
172 | /* Skip any leading junk such as id3v2 tags */ | |
173 | ape->junklength = avio_tell(pb); | |
174 | ||
175 | tag = avio_rl32(pb); | |
176 | if (tag != MKTAG('M', 'A', 'C', ' ')) | |
177 | return AVERROR_INVALIDDATA; | |
178 | ||
179 | ape->fileversion = avio_rl16(pb); | |
180 | ||
181 | if (ape->fileversion < APE_MIN_VERSION || ape->fileversion > APE_MAX_VERSION) { | |
182 | av_log(s, AV_LOG_ERROR, "Unsupported file version - %d.%02d\n", | |
183 | ape->fileversion / 1000, (ape->fileversion % 1000) / 10); | |
184 | return AVERROR_PATCHWELCOME; | |
185 | } | |
186 | ||
187 | if (ape->fileversion >= 3980) { | |
188 | ape->padding1 = avio_rl16(pb); | |
189 | ape->descriptorlength = avio_rl32(pb); | |
190 | ape->headerlength = avio_rl32(pb); | |
191 | ape->seektablelength = avio_rl32(pb); | |
192 | ape->wavheaderlength = avio_rl32(pb); | |
193 | ape->audiodatalength = avio_rl32(pb); | |
194 | ape->audiodatalength_high = avio_rl32(pb); | |
195 | ape->wavtaillength = avio_rl32(pb); | |
196 | avio_read(pb, ape->md5, 16); | |
197 | ||
198 | /* Skip any unknown bytes at the end of the descriptor. | |
199 | This is for future compatibility */ | |
200 | if (ape->descriptorlength > 52) | |
201 | avio_skip(pb, ape->descriptorlength - 52); | |
202 | ||
203 | /* Read header data */ | |
204 | ape->compressiontype = avio_rl16(pb); | |
205 | ape->formatflags = avio_rl16(pb); | |
206 | ape->blocksperframe = avio_rl32(pb); | |
207 | ape->finalframeblocks = avio_rl32(pb); | |
208 | ape->totalframes = avio_rl32(pb); | |
209 | ape->bps = avio_rl16(pb); | |
210 | ape->channels = avio_rl16(pb); | |
211 | ape->samplerate = avio_rl32(pb); | |
212 | } else { | |
213 | ape->descriptorlength = 0; | |
214 | ape->headerlength = 32; | |
215 | ||
216 | ape->compressiontype = avio_rl16(pb); | |
217 | ape->formatflags = avio_rl16(pb); | |
218 | ape->channels = avio_rl16(pb); | |
219 | ape->samplerate = avio_rl32(pb); | |
220 | ape->wavheaderlength = avio_rl32(pb); | |
221 | ape->wavtaillength = avio_rl32(pb); | |
222 | ape->totalframes = avio_rl32(pb); | |
223 | ape->finalframeblocks = avio_rl32(pb); | |
224 | ||
225 | if (ape->formatflags & MAC_FORMAT_FLAG_HAS_PEAK_LEVEL) { | |
226 | avio_skip(pb, 4); /* Skip the peak level */ | |
227 | ape->headerlength += 4; | |
228 | } | |
229 | ||
230 | if (ape->formatflags & MAC_FORMAT_FLAG_HAS_SEEK_ELEMENTS) { | |
231 | ape->seektablelength = avio_rl32(pb); | |
232 | ape->headerlength += 4; | |
233 | ape->seektablelength *= sizeof(int32_t); | |
234 | } else | |
235 | ape->seektablelength = ape->totalframes * sizeof(int32_t); | |
236 | ||
237 | if (ape->formatflags & MAC_FORMAT_FLAG_8_BIT) | |
238 | ape->bps = 8; | |
239 | else if (ape->formatflags & MAC_FORMAT_FLAG_24_BIT) | |
240 | ape->bps = 24; | |
241 | else | |
242 | ape->bps = 16; | |
243 | ||
244 | if (ape->fileversion >= 3950) | |
245 | ape->blocksperframe = 73728 * 4; | |
246 | else if (ape->fileversion >= 3900 || (ape->fileversion >= 3800 && ape->compressiontype >= 4000)) | |
247 | ape->blocksperframe = 73728; | |
248 | else | |
249 | ape->blocksperframe = 9216; | |
250 | ||
251 | /* Skip any stored wav header */ | |
252 | if (!(ape->formatflags & MAC_FORMAT_FLAG_CREATE_WAV_HEADER)) | |
253 | avio_skip(pb, ape->wavheaderlength); | |
254 | } | |
255 | ||
256 | if(!ape->totalframes){ | |
257 | av_log(s, AV_LOG_ERROR, "No frames in the file!\n"); | |
258 | return AVERROR(EINVAL); | |
259 | } | |
260 | if(ape->totalframes > UINT_MAX / sizeof(APEFrame)){ | |
261 | av_log(s, AV_LOG_ERROR, "Too many frames: %"PRIu32"\n", | |
262 | ape->totalframes); | |
263 | return AVERROR_INVALIDDATA; | |
264 | } | |
265 | if (ape->seektablelength / sizeof(*ape->seektable) < ape->totalframes) { | |
266 | av_log(s, AV_LOG_ERROR, | |
267 | "Number of seek entries is less than number of frames: %"SIZE_SPECIFIER" vs. %"PRIu32"\n", | |
268 | ape->seektablelength / sizeof(*ape->seektable), ape->totalframes); | |
269 | return AVERROR_INVALIDDATA; | |
270 | } | |
271 | ape->frames = av_malloc(ape->totalframes * sizeof(APEFrame)); | |
272 | if(!ape->frames) | |
273 | return AVERROR(ENOMEM); | |
274 | ape->firstframe = ape->junklength + ape->descriptorlength + ape->headerlength + ape->seektablelength + ape->wavheaderlength; | |
275 | if (ape->fileversion < 3810) | |
276 | ape->firstframe += ape->totalframes; | |
277 | ape->currentframe = 0; | |
278 | ||
279 | ||
280 | ape->totalsamples = ape->finalframeblocks; | |
281 | if (ape->totalframes > 1) | |
282 | ape->totalsamples += ape->blocksperframe * (ape->totalframes - 1); | |
283 | ||
284 | if (ape->seektablelength > 0) { | |
285 | ape->seektable = av_mallocz(ape->seektablelength); | |
286 | if (!ape->seektable) | |
287 | return AVERROR(ENOMEM); | |
288 | for (i = 0; i < ape->seektablelength / sizeof(uint32_t) && !pb->eof_reached; i++) | |
289 | ape->seektable[i] = avio_rl32(pb); | |
290 | if (ape->fileversion < 3810) { | |
291 | ape->bittable = av_mallocz(ape->totalframes); | |
292 | if (!ape->bittable) | |
293 | return AVERROR(ENOMEM); | |
294 | for (i = 0; i < ape->totalframes && !pb->eof_reached; i++) | |
295 | ape->bittable[i] = avio_r8(pb); | |
296 | } | |
297 | if (pb->eof_reached) | |
298 | av_log(s, AV_LOG_WARNING, "File truncated\n"); | |
299 | } | |
300 | ||
301 | ape->frames[0].pos = ape->firstframe; | |
302 | ape->frames[0].nblocks = ape->blocksperframe; | |
303 | ape->frames[0].skip = 0; | |
304 | for (i = 1; i < ape->totalframes; i++) { | |
305 | ape->frames[i].pos = ape->seektable[i] + ape->junklength; | |
306 | ape->frames[i].nblocks = ape->blocksperframe; | |
307 | ape->frames[i - 1].size = ape->frames[i].pos - ape->frames[i - 1].pos; | |
308 | ape->frames[i].skip = (ape->frames[i].pos - ape->frames[0].pos) & 3; | |
309 | } | |
310 | ape->frames[ape->totalframes - 1].nblocks = ape->finalframeblocks; | |
311 | /* calculate final packet size from total file size, if available */ | |
312 | file_size = avio_size(pb); | |
313 | if (file_size > 0) { | |
314 | final_size = file_size - ape->frames[ape->totalframes - 1].pos - | |
315 | ape->wavtaillength; | |
316 | final_size -= final_size & 3; | |
317 | } | |
318 | if (file_size <= 0 || final_size <= 0) | |
319 | final_size = ape->finalframeblocks * 8; | |
320 | ape->frames[ape->totalframes - 1].size = final_size; | |
321 | ||
322 | for (i = 0; i < ape->totalframes; i++) { | |
323 | if(ape->frames[i].skip){ | |
324 | ape->frames[i].pos -= ape->frames[i].skip; | |
325 | ape->frames[i].size += ape->frames[i].skip; | |
326 | } | |
327 | ape->frames[i].size = (ape->frames[i].size + 3) & ~3; | |
328 | } | |
329 | if (ape->fileversion < 3810) { | |
330 | for (i = 0; i < ape->totalframes; i++) { | |
331 | if (i < ape->totalframes - 1 && ape->bittable[i + 1]) | |
332 | ape->frames[i].size += 4; | |
333 | ape->frames[i].skip <<= 3; | |
334 | ape->frames[i].skip += ape->bittable[i]; | |
335 | } | |
336 | } | |
337 | ||
338 | ape_dumpinfo(s, ape); | |
339 | ||
340 | av_log(s, AV_LOG_DEBUG, "Decoding file - v%d.%02d, compression level %"PRIu16"\n", | |
341 | ape->fileversion / 1000, (ape->fileversion % 1000) / 10, | |
342 | ape->compressiontype); | |
343 | ||
344 | /* now we are ready: build format streams */ | |
345 | st = avformat_new_stream(s, NULL); | |
346 | if (!st) | |
347 | return AVERROR(ENOMEM); | |
348 | ||
349 | total_blocks = (ape->totalframes == 0) ? 0 : ((ape->totalframes - 1) * ape->blocksperframe) + ape->finalframeblocks; | |
350 | ||
351 | st->codec->codec_type = AVMEDIA_TYPE_AUDIO; | |
352 | st->codec->codec_id = AV_CODEC_ID_APE; | |
353 | st->codec->codec_tag = MKTAG('A', 'P', 'E', ' '); | |
354 | st->codec->channels = ape->channels; | |
355 | st->codec->sample_rate = ape->samplerate; | |
356 | st->codec->bits_per_coded_sample = ape->bps; | |
357 | ||
358 | st->nb_frames = ape->totalframes; | |
359 | st->start_time = 0; | |
360 | st->duration = total_blocks; | |
361 | avpriv_set_pts_info(st, 64, 1, ape->samplerate); | |
362 | ||
363 | if (ff_alloc_extradata(st->codec, APE_EXTRADATA_SIZE)) | |
364 | return AVERROR(ENOMEM); | |
365 | AV_WL16(st->codec->extradata + 0, ape->fileversion); | |
366 | AV_WL16(st->codec->extradata + 2, ape->compressiontype); | |
367 | AV_WL16(st->codec->extradata + 4, ape->formatflags); | |
368 | ||
369 | pts = 0; | |
370 | for (i = 0; i < ape->totalframes; i++) { | |
371 | ape->frames[i].pts = pts; | |
372 | av_add_index_entry(st, ape->frames[i].pos, ape->frames[i].pts, 0, 0, AVINDEX_KEYFRAME); | |
373 | pts += ape->blocksperframe; | |
374 | } | |
375 | ||
376 | /* try to read APE tags */ | |
377 | if (pb->seekable) { | |
378 | ff_ape_parse_tag(s); | |
379 | avio_seek(pb, 0, SEEK_SET); | |
380 | } | |
381 | ||
382 | return 0; | |
383 | } | |
384 | ||
385 | static int ape_read_packet(AVFormatContext * s, AVPacket * pkt) | |
386 | { | |
387 | int ret; | |
388 | int nblocks; | |
389 | APEContext *ape = s->priv_data; | |
390 | uint32_t extra_size = 8; | |
391 | ||
392 | if (avio_feof(s->pb)) | |
393 | return AVERROR_EOF; | |
394 | if (ape->currentframe >= ape->totalframes) | |
395 | return AVERROR_EOF; | |
396 | ||
397 | if (avio_seek(s->pb, ape->frames[ape->currentframe].pos, SEEK_SET) < 0) | |
398 | return AVERROR(EIO); | |
399 | ||
400 | /* Calculate how many blocks there are in this frame */ | |
401 | if (ape->currentframe == (ape->totalframes - 1)) | |
402 | nblocks = ape->finalframeblocks; | |
403 | else | |
404 | nblocks = ape->blocksperframe; | |
405 | ||
406 | if (ape->frames[ape->currentframe].size <= 0 || | |
407 | ape->frames[ape->currentframe].size > INT_MAX - extra_size) { | |
408 | av_log(s, AV_LOG_ERROR, "invalid packet size: %d\n", | |
409 | ape->frames[ape->currentframe].size); | |
410 | ape->currentframe++; | |
411 | return AVERROR(EIO); | |
412 | } | |
413 | ||
414 | if (av_new_packet(pkt, ape->frames[ape->currentframe].size + extra_size) < 0) | |
415 | return AVERROR(ENOMEM); | |
416 | ||
417 | AV_WL32(pkt->data , nblocks); | |
418 | AV_WL32(pkt->data + 4, ape->frames[ape->currentframe].skip); | |
419 | ret = avio_read(s->pb, pkt->data + extra_size, ape->frames[ape->currentframe].size); | |
420 | if (ret < 0) { | |
421 | av_free_packet(pkt); | |
422 | return ret; | |
423 | } | |
424 | ||
425 | pkt->pts = ape->frames[ape->currentframe].pts; | |
426 | pkt->stream_index = 0; | |
427 | ||
428 | /* note: we need to modify the packet size here to handle the last | |
429 | packet */ | |
430 | pkt->size = ret + extra_size; | |
431 | ||
432 | ape->currentframe++; | |
433 | ||
434 | return 0; | |
435 | } | |
436 | ||
437 | static int ape_read_close(AVFormatContext * s) | |
438 | { | |
439 | APEContext *ape = s->priv_data; | |
440 | ||
441 | av_freep(&ape->frames); | |
442 | av_freep(&ape->seektable); | |
443 | av_freep(&ape->bittable); | |
444 | return 0; | |
445 | } | |
446 | ||
447 | static int ape_read_seek(AVFormatContext *s, int stream_index, int64_t timestamp, int flags) | |
448 | { | |
449 | AVStream *st = s->streams[stream_index]; | |
450 | APEContext *ape = s->priv_data; | |
451 | int index = av_index_search_timestamp(st, timestamp, flags); | |
452 | ||
453 | if (index < 0) | |
454 | return -1; | |
455 | ||
456 | if (avio_seek(s->pb, st->index_entries[index].pos, SEEK_SET) < 0) | |
457 | return -1; | |
458 | ape->currentframe = index; | |
459 | return 0; | |
460 | } | |
461 | ||
462 | AVInputFormat ff_ape_demuxer = { | |
463 | .name = "ape", | |
464 | .long_name = NULL_IF_CONFIG_SMALL("Monkey's Audio"), | |
465 | .priv_data_size = sizeof(APEContext), | |
466 | .read_probe = ape_probe, | |
467 | .read_header = ape_read_header, | |
468 | .read_packet = ape_read_packet, | |
469 | .read_close = ape_read_close, | |
470 | .read_seek = ape_read_seek, | |
471 | .extensions = "ape,apl,mac", | |
472 | }; |