1 /* EasyFLAC - A thin decoding wrapper around libFLAC and libOggFLAC to
2 * make your code less ugly. See easyflac.h for explanation.
4 * Copyright 2003 - Stan Seibert <volsung@xiph.org>
5 * This code is licensed under a BSD style license:
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions are
11 * - Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
14 * - Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
18 * - Neither the name of the Xiph.org Foundation nor the names of its
19 * contributors may be used to endorse or promote products derived from
20 * this software without specific prior written permission.
22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
23 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
24 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
25 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION
26 * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
27 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
28 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
29 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
30 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
31 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
32 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
40 #include <flac/export.h>
41 #if !defined(FLAC_API_VERSION_CURRENT) || (FLAC_API_VERSION_CURRENT < 8)
47 FLAC__bool EasyFLAC__is_oggflac(EasyFLAC__StreamDecoder *decoder)
49 return decoder->is_oggflac;
53 EasyFLAC__StreamDecoder *EasyFLAC__stream_decoder_new(FLAC__bool is_oggflac)
55 EasyFLAC__StreamDecoder *decoder = malloc(sizeof(EasyFLAC__StreamDecoder));
59 decoder->is_oggflac = is_oggflac;
61 if (decoder->is_oggflac)
62 decoder->oggflac = OggFLAC__stream_decoder_new();
64 decoder->flac = FLAC__stream_decoder_new();
66 if ( (decoder->is_oggflac && decoder->oggflac == NULL)
67 ||(!decoder->is_oggflac && decoder->flac == NULL) )
78 void EasyFLAC__stream_decoder_delete(EasyFLAC__StreamDecoder *decoder)
80 if (decoder->is_oggflac)
81 OggFLAC__stream_decoder_delete(decoder->oggflac);
83 FLAC__stream_decoder_delete(decoder->flac);
89 /* Wrappers around the callbacks for OggFLAC */
91 FLAC__StreamDecoderReadStatus oggflac_read_callback(const OggFLAC__StreamDecoder *decoder, FLAC__byte buffer[], unsigned *bytes, void *client_data)
93 EasyFLAC__StreamDecoder *e_decoder = (EasyFLAC__StreamDecoder *) client_data;
95 return (*e_decoder->callbacks.read)(e_decoder, buffer, bytes, e_decoder->callbacks.client_data);
99 FLAC__StreamDecoderWriteStatus oggflac_write_callback(const OggFLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data)
101 EasyFLAC__StreamDecoder *e_decoder = (EasyFLAC__StreamDecoder *) client_data;
103 return (*(e_decoder->callbacks.write))(e_decoder, frame, buffer, e_decoder->callbacks.client_data);
107 void oggflac_metadata_callback(const OggFLAC__StreamDecoder *decoder, const FLAC__StreamMetadata *metadata, void *client_data)
109 EasyFLAC__StreamDecoder *e_decoder = (EasyFLAC__StreamDecoder *) client_data;
111 (*e_decoder->callbacks.metadata)(e_decoder, metadata, e_decoder->callbacks.client_data);
115 void oggflac_error_callback(const OggFLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data)
117 EasyFLAC__StreamDecoder *e_decoder = (EasyFLAC__StreamDecoder *) client_data;
119 (*e_decoder->callbacks.error)(e_decoder, status, e_decoder->callbacks.client_data);
123 /* Wrappers around the callbacks for FLAC */
125 FLAC__StreamDecoderReadStatus flac_read_callback(const FLAC__StreamDecoder *decoder, FLAC__byte buffer[], unsigned *bytes, void *client_data)
127 EasyFLAC__StreamDecoder *e_decoder = (EasyFLAC__StreamDecoder *) client_data;
129 return (*e_decoder->callbacks.read)(e_decoder, buffer, bytes, e_decoder->callbacks.client_data);
133 FLAC__StreamDecoderWriteStatus flac_write_callback(const FLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data)
135 EasyFLAC__StreamDecoder *e_decoder = (EasyFLAC__StreamDecoder *) client_data;
137 return (*e_decoder->callbacks.write)(e_decoder, frame, buffer, e_decoder->callbacks.client_data);
141 void flac_metadata_callback(const FLAC__StreamDecoder *decoder, const FLAC__StreamMetadata *metadata, void *client_data)
143 EasyFLAC__StreamDecoder *e_decoder = (EasyFLAC__StreamDecoder *) client_data;
145 (*e_decoder->callbacks.metadata)(e_decoder, metadata, e_decoder->callbacks.client_data);
149 void flac_error_callback(const FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data)
151 EasyFLAC__StreamDecoder *e_decoder = (EasyFLAC__StreamDecoder *) client_data;
153 (*e_decoder->callbacks.error)(e_decoder, status, e_decoder->callbacks.client_data);
157 FLAC__bool EasyFLAC__set_read_callback(EasyFLAC__StreamDecoder *decoder, EasyFLAC__StreamDecoderReadCallback value)
159 decoder->callbacks.read = value;
161 if (decoder->is_oggflac)
162 return OggFLAC__stream_decoder_set_read_callback(decoder->oggflac, &oggflac_read_callback);
164 return FLAC__stream_decoder_set_read_callback(decoder->flac, &flac_read_callback);
168 FLAC__bool EasyFLAC__set_write_callback(EasyFLAC__StreamDecoder *decoder, EasyFLAC__StreamDecoderWriteCallback value)
170 decoder->callbacks.write = value;
172 if (decoder->is_oggflac)
173 return OggFLAC__stream_decoder_set_write_callback(decoder->oggflac, &oggflac_write_callback);
175 return FLAC__stream_decoder_set_write_callback(decoder->flac, &flac_write_callback);
179 FLAC__bool EasyFLAC__set_metadata_callback(EasyFLAC__StreamDecoder *decoder, EasyFLAC__StreamDecoderMetadataCallback value)
181 decoder->callbacks.metadata = value;
183 if (decoder->is_oggflac)
184 return OggFLAC__stream_decoder_set_metadata_callback(decoder->oggflac, &oggflac_metadata_callback);
186 return FLAC__stream_decoder_set_metadata_callback(decoder->flac, &flac_metadata_callback);
190 FLAC__bool EasyFLAC__set_error_callback(EasyFLAC__StreamDecoder *decoder, EasyFLAC__StreamDecoderErrorCallback value)
192 decoder->callbacks.error = value;
194 if (decoder->is_oggflac)
195 return OggFLAC__stream_decoder_set_error_callback(decoder->oggflac, &oggflac_error_callback);
197 return FLAC__stream_decoder_set_error_callback(decoder->flac, &flac_error_callback);
201 FLAC__bool EasyFLAC__set_client_data(EasyFLAC__StreamDecoder *decoder, void *value)
203 decoder->callbacks.client_data = value;
205 if (decoder->is_oggflac)
206 return OggFLAC__stream_decoder_set_client_data(decoder->oggflac, decoder);
208 return FLAC__stream_decoder_set_client_data(decoder->flac, decoder);
212 FLAC__bool EasyFLAC__set_metadata_respond(EasyFLAC__StreamDecoder *decoder, FLAC__MetadataType type)
214 if (decoder->is_oggflac)
215 return OggFLAC__stream_decoder_set_metadata_respond(decoder->oggflac, type);
217 return FLAC__stream_decoder_set_metadata_respond(decoder->flac, type);
221 FLAC__bool EasyFLAC__set_metadata_respond_application(EasyFLAC__StreamDecoder *decoder, const FLAC__byte id[4])
223 if (decoder->is_oggflac)
224 return OggFLAC__stream_decoder_set_metadata_respond_application(decoder->oggflac, id);
226 return FLAC__stream_decoder_set_metadata_respond_application(decoder->flac, id);
230 FLAC__bool EasyFLAC__set_metadata_respond_all(EasyFLAC__StreamDecoder *decoder)
232 if (decoder->is_oggflac)
233 return OggFLAC__stream_decoder_set_metadata_respond_all(decoder->oggflac);
235 return FLAC__stream_decoder_set_metadata_respond_all(decoder->flac);
239 FLAC__bool EasyFLAC__set_metadata_ignore(EasyFLAC__StreamDecoder *decoder, FLAC__MetadataType type)
241 if (decoder->is_oggflac)
242 return OggFLAC__stream_decoder_set_metadata_ignore(decoder->oggflac, type);
244 return FLAC__stream_decoder_set_metadata_ignore(decoder->flac, type);
248 FLAC__bool EasyFLAC__set_metadata_ignore_application(EasyFLAC__StreamDecoder *decoder, const FLAC__byte id[4])
250 if (decoder->is_oggflac)
251 return OggFLAC__stream_decoder_set_metadata_ignore_application(decoder->oggflac, id);
253 return FLAC__stream_decoder_set_metadata_ignore_application(decoder->flac, id);
256 FLAC__bool EasyFLAC__set_metadata_ignore_all(EasyFLAC__StreamDecoder *decoder)
258 if (decoder->is_oggflac)
259 return OggFLAC__stream_decoder_set_metadata_ignore_all(decoder->oggflac);
261 return FLAC__stream_decoder_set_metadata_ignore_all(decoder->flac);
265 FLAC__StreamDecoderState EasyFLAC__get_state(const EasyFLAC__StreamDecoder *decoder)
267 if (decoder->is_oggflac)
268 return OggFLAC__stream_decoder_get_FLAC_stream_decoder_state(decoder->oggflac);
270 return FLAC__stream_decoder_get_state(decoder->flac);
274 unsigned EasyFLAC__get_channels(const EasyFLAC__StreamDecoder *decoder)
276 if (decoder->is_oggflac)
277 return OggFLAC__stream_decoder_get_channels(decoder->oggflac);
279 return FLAC__stream_decoder_get_channels(decoder->flac);
283 FLAC__ChannelAssignment EasyFLAC__get_channel_assignment(const EasyFLAC__StreamDecoder *decoder)
285 if (decoder->is_oggflac)
286 return OggFLAC__stream_decoder_get_channel_assignment(decoder->oggflac);
288 return FLAC__stream_decoder_get_channel_assignment(decoder->flac);
292 unsigned EasyFLAC__get_bits_per_sample(const EasyFLAC__StreamDecoder *decoder)
294 if (decoder->is_oggflac)
295 return OggFLAC__stream_decoder_get_bits_per_sample(decoder->oggflac);
297 return FLAC__stream_decoder_get_bits_per_sample(decoder->flac);
301 unsigned EasyFLAC__get_sample_rate(const EasyFLAC__StreamDecoder *decoder)
303 if (decoder->is_oggflac)
304 return OggFLAC__stream_decoder_get_sample_rate(decoder->oggflac);
306 return FLAC__stream_decoder_get_sample_rate(decoder->flac);
310 unsigned EasyFLAC__get_blocksize(const EasyFLAC__StreamDecoder *decoder)
312 if (decoder->is_oggflac)
313 return OggFLAC__stream_decoder_get_blocksize(decoder->oggflac);
315 return FLAC__stream_decoder_get_blocksize(decoder->flac);
319 FLAC__StreamDecoderState EasyFLAC__init(EasyFLAC__StreamDecoder *decoder)
321 if (decoder->is_oggflac)
323 OggFLAC__stream_decoder_init(decoder->oggflac);
324 return OggFLAC__stream_decoder_get_FLAC_stream_decoder_state(decoder->oggflac);
327 return FLAC__stream_decoder_init(decoder->flac);
331 void EasyFLAC__finish(EasyFLAC__StreamDecoder *decoder)
333 if (decoder->is_oggflac)
334 OggFLAC__stream_decoder_finish(decoder->oggflac);
336 FLAC__stream_decoder_finish(decoder->flac);
340 FLAC__bool EasyFLAC__flush(EasyFLAC__StreamDecoder *decoder)
342 if (decoder->is_oggflac)
343 return OggFLAC__stream_decoder_flush(decoder->oggflac);
345 return FLAC__stream_decoder_flush(decoder->flac);
349 FLAC__bool EasyFLAC__reset(EasyFLAC__StreamDecoder *decoder)
351 if (decoder->is_oggflac)
352 return OggFLAC__stream_decoder_reset(decoder->oggflac);
354 return FLAC__stream_decoder_reset(decoder->flac);
358 FLAC__bool EasyFLAC__process_single(EasyFLAC__StreamDecoder *decoder)
360 if (decoder->is_oggflac)
361 return OggFLAC__stream_decoder_process_single(decoder->oggflac);
363 return FLAC__stream_decoder_process_single(decoder->flac);
367 FLAC__bool EasyFLAC__process_until_end_of_metadata(EasyFLAC__StreamDecoder *decoder)
369 if (decoder->is_oggflac)
370 return OggFLAC__stream_decoder_process_until_end_of_metadata(decoder->oggflac);
372 return FLAC__stream_decoder_process_until_end_of_metadata(decoder->flac);
376 FLAC__bool EasyFLAC__process_until_end_of_stream(EasyFLAC__StreamDecoder *decoder)
378 if (decoder->is_oggflac)
379 return OggFLAC__stream_decoder_process_until_end_of_stream(decoder->oggflac);
381 return FLAC__stream_decoder_process_until_end_of_stream(decoder->flac);