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-rw-r--r--apps/codecs/libFLAC/file_decoder.c677
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diff --git a/apps/codecs/libFLAC/file_decoder.c b/apps/codecs/libFLAC/file_decoder.c
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index 213e76e8a5..0000000000
--- a/apps/codecs/libFLAC/file_decoder.c
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@@ -1,677 +0,0 @@
1/* libFLAC - Free Lossless Audio Codec library
2 * Copyright (C) 2000,2001,2002,2003,2004,2005 Josh Coalson
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 *
8 * - Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 *
11 * - Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * - Neither the name of the Xiph.org Foundation nor the names of its
16 * contributors may be used to endorse or promote products derived from
17 * this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
22 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
23 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
24 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
26 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
27 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
28 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
29 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#include <stdio.h>
33#include "global.h" /* for malloc() */
34#include <string.h> /* for strcmp() */
35#include <sys/stat.h> /* for stat() */
36#if defined _MSC_VER || defined __MINGW32__
37#include <io.h> /* for _setmode() */
38#include <fcntl.h> /* for _O_BINARY */
39#elif defined __CYGWIN__
40#include <io.h> /* for setmode(), O_BINARY */
41#include <fcntl.h> /* for _O_BINARY */
42#endif
43#include "FLAC/assert.h"
44#include "protected/file_decoder.h"
45#include "protected/seekable_stream_decoder.h"
46
47/***********************************************************************
48 *
49 * Private class method prototypes
50 *
51 ***********************************************************************/
52
53static void set_defaults_(FLAC__FileDecoder *decoder);
54static FILE *get_binary_stdin_();
55static FLAC__SeekableStreamDecoderReadStatus read_callback_(const FLAC__SeekableStreamDecoder *decoder, FLAC__byte buffer[], unsigned *bytes, void *client_data);
56static FLAC__SeekableStreamDecoderSeekStatus seek_callback_(const FLAC__SeekableStreamDecoder *decoder, FLAC__uint64 absolute_byte_offset, void *client_data);
57static FLAC__SeekableStreamDecoderTellStatus tell_callback_(const FLAC__SeekableStreamDecoder *decoder, FLAC__uint64 *absolute_byte_offset, void *client_data);
58static FLAC__SeekableStreamDecoderLengthStatus length_callback_(const FLAC__SeekableStreamDecoder *decoder, FLAC__uint64 *stream_length, void *client_data);
59static FLAC__bool eof_callback_(const FLAC__SeekableStreamDecoder *decoder, void *client_data);
60static FLAC__StreamDecoderWriteStatus write_callback_(const FLAC__SeekableStreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data);
61static void metadata_callback_(const FLAC__SeekableStreamDecoder *decoder, const FLAC__StreamMetadata *metadata, void *client_data);
62static void error_callback_(const FLAC__SeekableStreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data);
63
64/***********************************************************************
65 *
66 * Private class data
67 *
68 ***********************************************************************/
69
70typedef struct FLAC__FileDecoderPrivate {
71 FLAC__FileDecoderWriteCallback write_callback;
72 FLAC__FileDecoderMetadataCallback metadata_callback;
73 FLAC__FileDecoderErrorCallback error_callback;
74 void *client_data;
75 FILE *file;
76 char *filename; /* == NULL if stdin */
77 FLAC__SeekableStreamDecoder *seekable_stream_decoder;
78} FLAC__FileDecoderPrivate;
79
80/***********************************************************************
81 *
82 * Public static class data
83 *
84 ***********************************************************************/
85
86FLAC_API const char * const FLAC__FileDecoderStateString[] = {
87 "FLAC__FILE_DECODER_OK",
88 "FLAC__FILE_DECODER_END_OF_FILE",
89 "FLAC__FILE_DECODER_ERROR_OPENING_FILE",
90 "FLAC__FILE_DECODER_MEMORY_ALLOCATION_ERROR",
91 "FLAC__FILE_DECODER_SEEK_ERROR",
92 "FLAC__FILE_DECODER_SEEKABLE_STREAM_DECODER_ERROR",
93 "FLAC__FILE_DECODER_ALREADY_INITIALIZED",
94 "FLAC__FILE_DECODER_INVALID_CALLBACK",
95 "FLAC__FILE_DECODER_UNINITIALIZED"
96};
97
98/***********************************************************************
99 *
100 * Class constructor/destructor
101 *
102 ***********************************************************************/
103FLAC_FileDecoderProtected _fdprotected;
104FLAC_FileDecoderPrivate _fdprivate;
105
106FLAC_API FLAC__FileDecoder *FLAC__file_decoder_new()
107{
108 FLAC__FileDecoder *decoder;
109
110 FLAC__ASSERT(sizeof(int) >= 4); /* we want to die right away if this is not true */
111
112 decoder = (FLAC__FileDecoder*)calloc(1, sizeof(FLAC__FileDecoder));
113 if(decoder == 0) {
114 return 0;
115 }
116
117 decoder->protected = &_fdprotected;
118 /*decoder->protected_ = (FLAC__FileDecoderProtected*)calloc(1, sizeof(FLAC__FileDecoderProtected));
119 if(decoder->protected_ == 0) {
120 free(decoder);
121 return 0;
122 }*/
123
124 decoder->private_ = &_fdprivate;
125 /*decoder->private_ = (FLAC__FileDecoderPrivate*)calloc(1, sizeof(FLAC__FileDecoderPrivate));
126 if(decoder->private_ == 0) {
127 free(decoder->protected_);
128 free(decoder);
129 return 0;
130 }*/
131
132 decoder->private_->seekable_stream_decoder = FLAC__seekable_stream_decoder_new();
133 if(0 == decoder->private_->seekable_stream_decoder) {
134 /*free(decoder->private_);
135 free(decoder->protected_);
136 free(decoder);*/
137 return 0;
138 }
139
140 decoder->private_->file = 0;
141
142 set_defaults_(decoder);
143
144 decoder->protected_->state = FLAC__FILE_DECODER_UNINITIALIZED;
145
146 return decoder;
147}
148
149FLAC_API void FLAC__file_decoder_delete(FLAC__FileDecoder *decoder)
150{
151 FLAC__ASSERT(0 != decoder);
152 FLAC__ASSERT(0 != decoder->protected_);
153 FLAC__ASSERT(0 != decoder->private_);
154 FLAC__ASSERT(0 != decoder->private_->seekable_stream_decoder);
155
156 (void)FLAC__file_decoder_finish(decoder);
157
158 FLAC__seekable_stream_decoder_delete(decoder->private_->seekable_stream_decoder);
159
160 /*free(decoder->private_);
161 free(decoder->protected_);
162 free(decoder);*/
163}
164
165/***********************************************************************
166 *
167 * Public class methods
168 *
169 ***********************************************************************/
170
171FLAC_API FLAC__FileDecoderState FLAC__file_decoder_init(FLAC__FileDecoder *decoder)
172{
173 FLAC__ASSERT(0 != decoder);
174
175 if(decoder->protected_->state != FLAC__FILE_DECODER_UNINITIALIZED)
176 return decoder->protected_->state = FLAC__FILE_DECODER_ALREADY_INITIALIZED;
177
178 if(0 == decoder->private_->write_callback || 0 == decoder->private_->metadata_callback || 0 == decoder->private_->error_callback)
179 return decoder->protected_->state = FLAC__FILE_DECODER_INVALID_CALLBACK;
180
181 if(0 == decoder->private_->filename)
182 decoder->private_->file = get_binary_stdin_();
183 else
184 decoder->private_->file = fopen(decoder->private_->filename, "rb");
185
186 if(decoder->private_->file == 0)
187 return decoder->protected_->state = FLAC__FILE_DECODER_ERROR_OPENING_FILE;
188
189 FLAC__seekable_stream_decoder_set_read_callback(decoder->private_->seekable_stream_decoder, read_callback_);
190 FLAC__seekable_stream_decoder_set_seek_callback(decoder->private_->seekable_stream_decoder, seek_callback_);
191 FLAC__seekable_stream_decoder_set_tell_callback(decoder->private_->seekable_stream_decoder, tell_callback_);
192 FLAC__seekable_stream_decoder_set_length_callback(decoder->private_->seekable_stream_decoder, length_callback_);
193 FLAC__seekable_stream_decoder_set_eof_callback(decoder->private_->seekable_stream_decoder, eof_callback_);
194 FLAC__seekable_stream_decoder_set_write_callback(decoder->private_->seekable_stream_decoder, write_callback_);
195 FLAC__seekable_stream_decoder_set_metadata_callback(decoder->private_->seekable_stream_decoder, metadata_callback_);
196 FLAC__seekable_stream_decoder_set_error_callback(decoder->private_->seekable_stream_decoder, error_callback_);
197 FLAC__seekable_stream_decoder_set_client_data(decoder->private_->seekable_stream_decoder, decoder);
198
199 if(FLAC__seekable_stream_decoder_init(decoder->private_->seekable_stream_decoder) != FLAC__SEEKABLE_STREAM_DECODER_OK)
200 return decoder->protected_->state = FLAC__FILE_DECODER_SEEKABLE_STREAM_DECODER_ERROR;
201
202 return decoder->protected_->state = FLAC__FILE_DECODER_OK;
203}
204
205FLAC_API FLAC__bool FLAC__file_decoder_finish(FLAC__FileDecoder *decoder)
206{
207 FLAC__ASSERT(0 != decoder);
208
209 if(decoder->protected_->state == FLAC__FILE_DECODER_UNINITIALIZED)
210 return true;
211
212 FLAC__ASSERT(0 != decoder->private_->seekable_stream_decoder);
213
214 if(0 != decoder->private_->file && decoder->private_->file != stdin) {
215 fclose(decoder->private_->file);
216 decoder->private_->file = 0;
217 }
218
219 if(0 != decoder->private_->filename) {
220 free(decoder->private_->filename);
221 decoder->private_->filename = 0;
222 }
223
224 set_defaults_(decoder);
225
226 decoder->protected_->state = FLAC__FILE_DECODER_UNINITIALIZED;
227
228 return FLAC__seekable_stream_decoder_finish(decoder->private_->seekable_stream_decoder);
229}
230
231FLAC_API FLAC__bool FLAC__file_decoder_set_md5_checking(FLAC__FileDecoder *decoder, FLAC__bool value)
232{
233 FLAC__ASSERT(0 != decoder);
234 FLAC__ASSERT(0 != decoder->private_);
235 FLAC__ASSERT(0 != decoder->protected_);
236 FLAC__ASSERT(0 != decoder->private_->seekable_stream_decoder);
237 if(decoder->protected_->state != FLAC__FILE_DECODER_UNINITIALIZED)
238 return false;
239 return FLAC__seekable_stream_decoder_set_md5_checking(decoder->private_->seekable_stream_decoder, value);
240}
241
242FLAC_API FLAC__bool FLAC__file_decoder_set_filename(FLAC__FileDecoder *decoder, const char *value)
243{
244 FLAC__ASSERT(0 != decoder);
245 FLAC__ASSERT(0 != decoder->private_);
246 FLAC__ASSERT(0 != decoder->protected_);
247 FLAC__ASSERT(0 != value);
248 if(decoder->protected_->state != FLAC__FILE_DECODER_UNINITIALIZED)
249 return false;
250 if(0 != decoder->private_->filename) {
251 free(decoder->private_->filename);
252 decoder->private_->filename = 0;
253 }
254 if(0 != strcmp(value, "-")) {
255 if(0 == (decoder->private_->filename = (char*)malloc(strlen(value)+1))) {
256 decoder->protected_->state = FLAC__FILE_DECODER_MEMORY_ALLOCATION_ERROR;
257 return false;
258 }
259 strcpy(decoder->private_->filename, value);
260 }
261 return true;
262}
263
264FLAC_API FLAC__bool FLAC__file_decoder_set_write_callback(FLAC__FileDecoder *decoder, FLAC__FileDecoderWriteCallback value)
265{
266 FLAC__ASSERT(0 != decoder);
267 FLAC__ASSERT(0 != decoder->private_);
268 FLAC__ASSERT(0 != decoder->protected_);
269 if(decoder->protected_->state != FLAC__FILE_DECODER_UNINITIALIZED)
270 return false;
271 decoder->private_->write_callback = value;
272 return true;
273}
274
275FLAC_API FLAC__bool FLAC__file_decoder_set_metadata_callback(FLAC__FileDecoder *decoder, FLAC__FileDecoderMetadataCallback value)
276{
277 FLAC__ASSERT(0 != decoder);
278 FLAC__ASSERT(0 != decoder->private_);
279 FLAC__ASSERT(0 != decoder->protected_);
280 if(decoder->protected_->state != FLAC__FILE_DECODER_UNINITIALIZED)
281 return false;
282 decoder->private_->metadata_callback = value;
283 return true;
284}
285
286FLAC_API FLAC__bool FLAC__file_decoder_set_error_callback(FLAC__FileDecoder *decoder, FLAC__FileDecoderErrorCallback value)
287{
288 FLAC__ASSERT(0 != decoder);
289 FLAC__ASSERT(0 != decoder->private_);
290 FLAC__ASSERT(0 != decoder->protected_);
291 if(decoder->protected_->state != FLAC__FILE_DECODER_UNINITIALIZED)
292 return false;
293 decoder->private_->error_callback = value;
294 return true;
295}
296
297FLAC_API FLAC__bool FLAC__file_decoder_set_client_data(FLAC__FileDecoder *decoder, void *value)
298{
299 FLAC__ASSERT(0 != decoder);
300 FLAC__ASSERT(0 != decoder->private_);
301 FLAC__ASSERT(0 != decoder->protected_);
302 if(decoder->protected_->state != FLAC__FILE_DECODER_UNINITIALIZED)
303 return false;
304 decoder->private_->client_data = value;
305 return true;
306}
307
308FLAC_API FLAC__bool FLAC__file_decoder_set_metadata_respond(FLAC__FileDecoder *decoder, FLAC__MetadataType type)
309{
310 FLAC__ASSERT(0 != decoder);
311 FLAC__ASSERT(0 != decoder->private_);
312 FLAC__ASSERT(0 != decoder->protected_);
313 FLAC__ASSERT(0 != decoder->private_->seekable_stream_decoder);
314 if(decoder->protected_->state != FLAC__FILE_DECODER_UNINITIALIZED)
315 return false;
316 return FLAC__seekable_stream_decoder_set_metadata_respond(decoder->private_->seekable_stream_decoder, type);
317}
318
319FLAC_API FLAC__bool FLAC__file_decoder_set_metadata_respond_application(FLAC__FileDecoder *decoder, const FLAC__byte id[4])
320{
321 FLAC__ASSERT(0 != decoder);
322 FLAC__ASSERT(0 != decoder->private_);
323 FLAC__ASSERT(0 != decoder->protected_);
324 FLAC__ASSERT(0 != decoder->private_->seekable_stream_decoder);
325 if(decoder->protected_->state != FLAC__FILE_DECODER_UNINITIALIZED)
326 return false;
327 return FLAC__seekable_stream_decoder_set_metadata_respond_application(decoder->private_->seekable_stream_decoder, id);
328}
329
330FLAC_API FLAC__bool FLAC__file_decoder_set_metadata_respond_all(FLAC__FileDecoder *decoder)
331{
332 FLAC__ASSERT(0 != decoder);
333 FLAC__ASSERT(0 != decoder->private_);
334 FLAC__ASSERT(0 != decoder->protected_);
335 FLAC__ASSERT(0 != decoder->private_->seekable_stream_decoder);
336 if(decoder->protected_->state != FLAC__FILE_DECODER_UNINITIALIZED)
337 return false;
338 return FLAC__seekable_stream_decoder_set_metadata_respond_all(decoder->private_->seekable_stream_decoder);
339}
340
341FLAC_API FLAC__bool FLAC__file_decoder_set_metadata_ignore(FLAC__FileDecoder *decoder, FLAC__MetadataType type)
342{
343 FLAC__ASSERT(0 != decoder);
344 FLAC__ASSERT(0 != decoder->private_);
345 FLAC__ASSERT(0 != decoder->protected_);
346 FLAC__ASSERT(0 != decoder->private_->seekable_stream_decoder);
347 if(decoder->protected_->state != FLAC__FILE_DECODER_UNINITIALIZED)
348 return false;
349 return FLAC__seekable_stream_decoder_set_metadata_ignore(decoder->private_->seekable_stream_decoder, type);
350}
351
352FLAC_API FLAC__bool FLAC__file_decoder_set_metadata_ignore_application(FLAC__FileDecoder *decoder, const FLAC__byte id[4])
353{
354 FLAC__ASSERT(0 != decoder);
355 FLAC__ASSERT(0 != decoder->private_);
356 FLAC__ASSERT(0 != decoder->protected_);
357 FLAC__ASSERT(0 != decoder->private_->seekable_stream_decoder);
358 if(decoder->protected_->state != FLAC__FILE_DECODER_UNINITIALIZED)
359 return false;
360 return FLAC__seekable_stream_decoder_set_metadata_ignore_application(decoder->private_->seekable_stream_decoder, id);
361}
362
363FLAC_API FLAC__bool FLAC__file_decoder_set_metadata_ignore_all(FLAC__FileDecoder *decoder)
364{
365 FLAC__ASSERT(0 != decoder);
366 FLAC__ASSERT(0 != decoder->private_);
367 FLAC__ASSERT(0 != decoder->protected_);
368 FLAC__ASSERT(0 != decoder->private_->seekable_stream_decoder);
369 if(decoder->protected_->state != FLAC__FILE_DECODER_UNINITIALIZED)
370 return false;
371 return FLAC__seekable_stream_decoder_set_metadata_ignore_all(decoder->private_->seekable_stream_decoder);
372}
373
374FLAC_API FLAC__FileDecoderState FLAC__file_decoder_get_state(const FLAC__FileDecoder *decoder)
375{
376 FLAC__ASSERT(0 != decoder);
377 FLAC__ASSERT(0 != decoder->protected_);
378 return decoder->protected_->state;
379}
380
381FLAC_API FLAC__SeekableStreamDecoderState FLAC__file_decoder_get_seekable_stream_decoder_state(const FLAC__FileDecoder *decoder)
382{
383 FLAC__ASSERT(0 != decoder);
384 FLAC__ASSERT(0 != decoder->private_);
385 return FLAC__seekable_stream_decoder_get_state(decoder->private_->seekable_stream_decoder);
386}
387
388FLAC_API FLAC__StreamDecoderState FLAC__file_decoder_get_stream_decoder_state(const FLAC__FileDecoder *decoder)
389{
390 FLAC__ASSERT(0 != decoder);
391 FLAC__ASSERT(0 != decoder->private_);
392 return FLAC__seekable_stream_decoder_get_stream_decoder_state(decoder->private_->seekable_stream_decoder);
393}
394
395FLAC_API const char *FLAC__file_decoder_get_resolved_state_string(const FLAC__FileDecoder *decoder)
396{
397 if(decoder->protected_->state != FLAC__FILE_DECODER_SEEKABLE_STREAM_DECODER_ERROR)
398 return FLAC__FileDecoderStateString[decoder->protected_->state];
399 else
400 return FLAC__seekable_stream_decoder_get_resolved_state_string(decoder->private_->seekable_stream_decoder);
401}
402
403FLAC_API FLAC__bool FLAC__file_decoder_get_md5_checking(const FLAC__FileDecoder *decoder)
404{
405 FLAC__ASSERT(0 != decoder);
406 FLAC__ASSERT(0 != decoder->private_);
407 return FLAC__seekable_stream_decoder_get_md5_checking(decoder->private_->seekable_stream_decoder);
408}
409
410FLAC_API unsigned FLAC__file_decoder_get_channels(const FLAC__FileDecoder *decoder)
411{
412 FLAC__ASSERT(0 != decoder);
413 FLAC__ASSERT(0 != decoder->private_);
414 return FLAC__seekable_stream_decoder_get_channels(decoder->private_->seekable_stream_decoder);
415}
416
417FLAC_API FLAC__ChannelAssignment FLAC__file_decoder_get_channel_assignment(const FLAC__FileDecoder *decoder)
418{
419 FLAC__ASSERT(0 != decoder);
420 FLAC__ASSERT(0 != decoder->private_);
421 return FLAC__seekable_stream_decoder_get_channel_assignment(decoder->private_->seekable_stream_decoder);
422}
423
424FLAC_API unsigned FLAC__file_decoder_get_bits_per_sample(const FLAC__FileDecoder *decoder)
425{
426 FLAC__ASSERT(0 != decoder);
427 FLAC__ASSERT(0 != decoder->private_);
428 return FLAC__seekable_stream_decoder_get_bits_per_sample(decoder->private_->seekable_stream_decoder);
429}
430
431FLAC_API unsigned FLAC__file_decoder_get_sample_rate(const FLAC__FileDecoder *decoder)
432{
433 FLAC__ASSERT(0 != decoder);
434 FLAC__ASSERT(0 != decoder->private_);
435 return FLAC__seekable_stream_decoder_get_sample_rate(decoder->private_->seekable_stream_decoder);
436}
437
438FLAC_API unsigned FLAC__file_decoder_get_blocksize(const FLAC__FileDecoder *decoder)
439{
440 FLAC__ASSERT(0 != decoder);
441 FLAC__ASSERT(0 != decoder->private_);
442 return FLAC__seekable_stream_decoder_get_blocksize(decoder->private_->seekable_stream_decoder);
443}
444
445FLAC_API FLAC__bool FLAC__file_decoder_get_decode_position(const FLAC__FileDecoder *decoder, FLAC__uint64 *position)
446{
447 FLAC__ASSERT(0 != decoder);
448 FLAC__ASSERT(0 != decoder->private_);
449 return FLAC__seekable_stream_decoder_get_decode_position(decoder->private_->seekable_stream_decoder, position);
450}
451
452FLAC_API FLAC__bool FLAC__file_decoder_process_single(FLAC__FileDecoder *decoder)
453{
454 FLAC__bool ret;
455 FLAC__ASSERT(0 != decoder);
456
457 if(decoder->private_->seekable_stream_decoder->protected_->state == FLAC__SEEKABLE_STREAM_DECODER_END_OF_STREAM)
458 decoder->protected_->state = FLAC__FILE_DECODER_END_OF_FILE;
459
460 if(decoder->protected_->state == FLAC__FILE_DECODER_END_OF_FILE)
461 return true;
462
463 FLAC__ASSERT(decoder->protected_->state == FLAC__FILE_DECODER_OK);
464
465 ret = FLAC__seekable_stream_decoder_process_single(decoder->private_->seekable_stream_decoder);
466 if(!ret)
467 decoder->protected_->state = FLAC__FILE_DECODER_SEEKABLE_STREAM_DECODER_ERROR;
468
469 return ret;
470}
471
472FLAC_API FLAC__bool FLAC__file_decoder_process_until_end_of_metadata(FLAC__FileDecoder *decoder)
473{
474 FLAC__bool ret;
475 FLAC__ASSERT(0 != decoder);
476
477 if(decoder->private_->seekable_stream_decoder->protected_->state == FLAC__SEEKABLE_STREAM_DECODER_END_OF_STREAM)
478 decoder->protected_->state = FLAC__FILE_DECODER_END_OF_FILE;
479
480 if(decoder->protected_->state == FLAC__FILE_DECODER_END_OF_FILE)
481 return true;
482
483 FLAC__ASSERT(decoder->protected_->state == FLAC__FILE_DECODER_OK);
484
485 ret = FLAC__seekable_stream_decoder_process_until_end_of_metadata(decoder->private_->seekable_stream_decoder);
486 if(!ret)
487 decoder->protected_->state = FLAC__FILE_DECODER_SEEKABLE_STREAM_DECODER_ERROR;
488
489 return ret;
490}
491
492FLAC_API FLAC__bool FLAC__file_decoder_process_until_end_of_file(FLAC__FileDecoder *decoder)
493{
494 FLAC__bool ret;
495 FLAC__ASSERT(0 != decoder);
496
497 if(decoder->private_->seekable_stream_decoder->protected_->state == FLAC__SEEKABLE_STREAM_DECODER_END_OF_STREAM)
498 decoder->protected_->state = FLAC__FILE_DECODER_END_OF_FILE;
499
500 if(decoder->protected_->state == FLAC__FILE_DECODER_END_OF_FILE)
501 return true;
502
503 FLAC__ASSERT(decoder->protected_->state == FLAC__FILE_DECODER_OK);
504
505 ret = FLAC__seekable_stream_decoder_process_until_end_of_stream(decoder->private_->seekable_stream_decoder);
506 if(!ret)
507 decoder->protected_->state = FLAC__FILE_DECODER_SEEKABLE_STREAM_DECODER_ERROR;
508
509 return ret;
510}
511
512FLAC_API FLAC__bool FLAC__file_decoder_skip_single_frame(FLAC__FileDecoder *decoder)
513{
514 FLAC__bool ret;
515 FLAC__ASSERT(0 != decoder);
516
517 if(decoder->private_->seekable_stream_decoder->protected_->state == FLAC__SEEKABLE_STREAM_DECODER_END_OF_STREAM)
518 decoder->protected_->state = FLAC__FILE_DECODER_END_OF_FILE;
519
520 if(decoder->protected_->state == FLAC__FILE_DECODER_END_OF_FILE)
521 return true;
522
523 FLAC__ASSERT(decoder->protected_->state == FLAC__FILE_DECODER_OK);
524
525 ret = FLAC__seekable_stream_decoder_skip_single_frame(decoder->private_->seekable_stream_decoder);
526 if(!ret)
527 decoder->protected_->state = FLAC__FILE_DECODER_SEEKABLE_STREAM_DECODER_ERROR;
528
529 return ret;
530}
531
532FLAC_API FLAC__bool FLAC__file_decoder_seek_absolute(FLAC__FileDecoder *decoder, FLAC__uint64 sample)
533{
534 FLAC__ASSERT(0 != decoder);
535 FLAC__ASSERT(decoder->protected_->state == FLAC__FILE_DECODER_OK || decoder->protected_->state == FLAC__FILE_DECODER_END_OF_FILE);
536
537 if(decoder->private_->filename == 0) { /* means the file is stdin... */
538 decoder->protected_->state = FLAC__FILE_DECODER_SEEK_ERROR;
539 return false;
540 }
541
542 if(!FLAC__seekable_stream_decoder_seek_absolute(decoder->private_->seekable_stream_decoder, sample)) {
543 decoder->protected_->state = FLAC__FILE_DECODER_SEEK_ERROR;
544 return false;
545 }
546 else {
547 decoder->protected_->state = FLAC__FILE_DECODER_OK;
548 return true;
549 }
550}
551
552
553/***********************************************************************
554 *
555 * Private class methods
556 *
557 ***********************************************************************/
558
559void set_defaults_(FLAC__FileDecoder *decoder)
560{
561 FLAC__ASSERT(0 != decoder);
562 FLAC__ASSERT(0 != decoder->private_);
563
564 decoder->private_->filename = 0;
565 decoder->private_->write_callback = 0;
566 decoder->private_->metadata_callback = 0;
567 decoder->private_->error_callback = 0;
568 decoder->private_->client_data = 0;
569}
570
571/*
572 * This will forcibly set stdin to binary mode (for OSes that require it)
573 */
574FILE *get_binary_stdin_()
575{
576 /* if something breaks here it is probably due to the presence or
577 * absence of an underscore before the identifiers 'setmode',
578 * 'fileno', and/or 'O_BINARY'; check your system header files.
579 */
580#if defined _MSC_VER || defined __MINGW32__
581 _setmode(_fileno(stdin), _O_BINARY);
582#elif defined __CYGWIN__
583 /* almost certainly not needed for any modern Cygwin, but let's be safe... */
584 setmode(_fileno(stdin), _O_BINARY);
585#endif
586
587 return stdin;
588}
589
590FLAC__SeekableStreamDecoderReadStatus read_callback_(const FLAC__SeekableStreamDecoder *decoder, FLAC__byte buffer[], unsigned *bytes, void *client_data)
591{
592 FLAC__FileDecoder *file_decoder = (FLAC__FileDecoder *)client_data;
593 (void)decoder;
594
595 if(*bytes > 0) {
596 *bytes = (unsigned)fread(buffer, sizeof(FLAC__byte), *bytes, file_decoder->private_->file);
597 if(ferror(file_decoder->private_->file)) {
598 return FLAC__SEEKABLE_STREAM_DECODER_READ_STATUS_ERROR;
599 }
600 else {
601 return FLAC__SEEKABLE_STREAM_DECODER_READ_STATUS_OK;
602 }
603 }
604 else
605 return FLAC__SEEKABLE_STREAM_DECODER_READ_STATUS_ERROR; /* abort to avoid a deadlock */
606}
607
608FLAC__SeekableStreamDecoderSeekStatus seek_callback_(const FLAC__SeekableStreamDecoder *decoder, FLAC__uint64 absolute_byte_offset, void *client_data)
609{
610 FLAC__FileDecoder *file_decoder = (FLAC__FileDecoder *)client_data;
611 (void)decoder;
612
613 if(fseek(file_decoder->private_->file, (long)absolute_byte_offset, SEEK_SET) < 0)
614 return FLAC__SEEKABLE_STREAM_DECODER_SEEK_STATUS_ERROR;
615 else
616 return FLAC__SEEKABLE_STREAM_DECODER_SEEK_STATUS_OK;
617}
618
619FLAC__SeekableStreamDecoderTellStatus tell_callback_(const FLAC__SeekableStreamDecoder *decoder, FLAC__uint64 *absolute_byte_offset, void *client_data)
620{
621 FLAC__FileDecoder *file_decoder = (FLAC__FileDecoder *)client_data;
622 long pos;
623 (void)decoder;
624
625 if((pos = ftell(file_decoder->private_->file)) < 0)
626 return FLAC__SEEKABLE_STREAM_DECODER_TELL_STATUS_ERROR;
627 else {
628 *absolute_byte_offset = (FLAC__uint64)pos;
629 return FLAC__SEEKABLE_STREAM_DECODER_TELL_STATUS_OK;
630 }
631}
632
633FLAC__SeekableStreamDecoderLengthStatus length_callback_(const FLAC__SeekableStreamDecoder *decoder, FLAC__uint64 *stream_length, void *client_data)
634{
635 FLAC__FileDecoder *file_decoder = (FLAC__FileDecoder *)client_data;
636 struct stat filestats;
637 (void)decoder;
638
639 if(0 == file_decoder->private_->filename || stat(file_decoder->private_->filename, &filestats) != 0)
640 return FLAC__SEEKABLE_STREAM_DECODER_LENGTH_STATUS_ERROR;
641 else {
642 *stream_length = (FLAC__uint64)filestats.st_size;
643 return FLAC__SEEKABLE_STREAM_DECODER_LENGTH_STATUS_OK;
644 }
645}
646
647FLAC__bool eof_callback_(const FLAC__SeekableStreamDecoder *decoder, void *client_data)
648{
649 FLAC__FileDecoder *file_decoder = (FLAC__FileDecoder *)client_data;
650 (void)decoder;
651
652 return feof(file_decoder->private_->file)? true : false;
653}
654
655FLAC__StreamDecoderWriteStatus write_callback_(const FLAC__SeekableStreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data)
656{
657 FLAC__FileDecoder *file_decoder = (FLAC__FileDecoder *)client_data;
658 (void)decoder;
659
660 return file_decoder->private_->write_callback(file_decoder, frame, buffer, file_decoder->private_->client_data);
661}
662
663void metadata_callback_(const FLAC__SeekableStreamDecoder *decoder, const FLAC__StreamMetadata *metadata, void *client_data)
664{
665 FLAC__FileDecoder *file_decoder = (FLAC__FileDecoder *)client_data;
666 (void)decoder;
667
668 file_decoder->private_->metadata_callback(file_decoder, metadata, file_decoder->private_->client_data);
669}
670
671void error_callback_(const FLAC__SeekableStreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data)
672{
673 FLAC__FileDecoder *file_decoder = (FLAC__FileDecoder *)client_data;
674 (void)decoder;
675
676 file_decoder->private_->error_callback(file_decoder, status, file_decoder->private_->client_data);
677}
generated by cgit v1.2.3 (git 2.39.1) at 2024-09-19 23:05:53 +0000