1 /*
2 Copyright (C) 2012-2014 Paul Brossier <piem@aubio.org>
3
4 This file is part of aubio.
5
6 aubio is free software: you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation, either version 3 of the License, or
9 (at your option) any later version.
10
11 aubio is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with aubio. If not, see <http://www.gnu.org/licenses/>.
18
19 */
20
21 #include "aubio_priv.h"
22
23 #ifdef HAVE_SINK_APPLE_AUDIO
24 #include "fvec.h"
25 #include "fmat.h"
26 #include "io/sink_apple_audio.h"
27 #include "io/ioutils.h"
28
29 // CFURLRef, CFURLCreateWithFileSystemPath, ...
30 #include <CoreFoundation/CoreFoundation.h>
31 // ExtAudioFileRef, AudioStreamBasicDescription, AudioBufferList, ...
32 #include <AudioToolbox/AudioToolbox.h>
33
34 extern int createAudioBufferList(AudioBufferList *bufferList, int channels, int segmentSize);
35 extern void freeAudioBufferList(AudioBufferList *bufferList);
36 extern CFURLRef createURLFromPath(const char * path);
37 char_t *getPrintableOSStatusError(char_t *str, OSStatus error);
38
39 uint_t aubio_sink_apple_audio_open(aubio_sink_apple_audio_t *s);
40
41 #define MAX_SIZE 4096 // the maximum number of frames that can be written at a time
42
43 void aubio_sink_apple_audio_write(aubio_sink_apple_audio_t *s, uint_t write);
44
45 struct _aubio_sink_apple_audio_t {
46 uint_t samplerate;
47 uint_t channels;
48 char_t *path;
49
50 uint_t max_frames;
51
52 AudioBufferList bufferList;
53 ExtAudioFileRef audioFile;
54 bool async;
55 };
56
new_aubio_sink_apple_audio(const char_t * uri,uint_t samplerate)57 aubio_sink_apple_audio_t * new_aubio_sink_apple_audio(const char_t * uri, uint_t samplerate) {
58 aubio_sink_apple_audio_t * s = AUBIO_NEW(aubio_sink_apple_audio_t);
59 s->max_frames = MAX_SIZE;
60 s->async = false;
61
62 if ( (uri == NULL) || (strnlen(uri, PATH_MAX) < 1) ) {
63 AUBIO_ERROR("sink_apple_audio: Aborted opening null path\n");
64 goto beach;
65 }
66
67 s->path = AUBIO_ARRAY(char_t, strnlen(uri, PATH_MAX) + 1);
68 strncpy(s->path, uri, strnlen(uri, PATH_MAX) + 1);
69
70 s->samplerate = 0;
71 s->channels = 0;
72
73 // zero samplerate given. do not open yet
74 if ((sint_t)samplerate == 0) {
75 return s;
76 }
77
78 // invalid samplerate given, abort
79 if (aubio_io_validate_samplerate("sink_apple_audio", s->path, samplerate)) {
80 goto beach;
81 }
82
83 s->samplerate = samplerate;
84 s->channels = 1;
85
86 if (aubio_sink_apple_audio_open(s) != AUBIO_OK) {
87 // open failed, abort
88 goto beach;
89 }
90
91 return s;
92 beach:
93 del_aubio_sink_apple_audio(s);
94 return NULL;
95 }
96
aubio_sink_apple_audio_preset_samplerate(aubio_sink_apple_audio_t * s,uint_t samplerate)97 uint_t aubio_sink_apple_audio_preset_samplerate(aubio_sink_apple_audio_t *s, uint_t samplerate)
98 {
99 if (aubio_io_validate_samplerate("sink_apple_audio", s->path, samplerate)) {
100 return AUBIO_FAIL;
101 }
102 s->samplerate = samplerate;
103 // automatically open when both samplerate and channels have been set
104 if (/* s->samplerate != 0 && */ s->channels != 0) {
105 return aubio_sink_apple_audio_open(s);
106 }
107 return AUBIO_OK;
108 }
109
aubio_sink_apple_audio_preset_channels(aubio_sink_apple_audio_t * s,uint_t channels)110 uint_t aubio_sink_apple_audio_preset_channels(aubio_sink_apple_audio_t *s, uint_t channels)
111 {
112 if (aubio_io_validate_channels("sink_apple_audio", s->path, channels)) {
113 return AUBIO_FAIL;
114 }
115 s->channels = channels;
116 // automatically open when both samplerate and channels have been set
117 if (s->samplerate != 0 /* && s->channels != 0 */) {
118 return aubio_sink_apple_audio_open(s);
119 }
120 return AUBIO_OK;
121 }
122
aubio_sink_apple_audio_get_samplerate(const aubio_sink_apple_audio_t * s)123 uint_t aubio_sink_apple_audio_get_samplerate(const aubio_sink_apple_audio_t *s)
124 {
125 return s->samplerate;
126 }
127
aubio_sink_apple_audio_get_channels(const aubio_sink_apple_audio_t * s)128 uint_t aubio_sink_apple_audio_get_channels(const aubio_sink_apple_audio_t *s)
129 {
130 return s->channels;
131 }
132
aubio_sink_apple_audio_open(aubio_sink_apple_audio_t * s)133 uint_t aubio_sink_apple_audio_open(aubio_sink_apple_audio_t *s) {
134
135 if (s->samplerate == 0 || s->channels == 0) return AUBIO_FAIL;
136
137 AudioStreamBasicDescription clientFormat;
138 memset(&clientFormat, 0, sizeof(AudioStreamBasicDescription));
139 clientFormat.mFormatID = kAudioFormatLinearPCM;
140 clientFormat.mSampleRate = (Float64)(s->samplerate);
141 clientFormat.mFormatFlags = kAudioFormatFlagIsSignedInteger | kAudioFormatFlagIsPacked;
142 clientFormat.mChannelsPerFrame = s->channels;
143 clientFormat.mBitsPerChannel = sizeof(short) * 8;
144 clientFormat.mFramesPerPacket = 1;
145 clientFormat.mBytesPerFrame = clientFormat.mBitsPerChannel * clientFormat.mChannelsPerFrame / 8;
146 clientFormat.mBytesPerPacket = clientFormat.mFramesPerPacket * clientFormat.mBytesPerFrame;
147 clientFormat.mReserved = 0;
148
149 AudioFileTypeID fileType = kAudioFileWAVEType;
150 CFURLRef fileURL = createURLFromPath(s->path);
151 bool overwrite = true;
152
153 // set the in-memory format
154 AudioStreamBasicDescription inputFormat;
155 memset(&inputFormat, 0, sizeof(AudioStreamBasicDescription));
156 inputFormat.mFormatID = kAudioFormatLinearPCM;
157 inputFormat.mSampleRate = (Float64)(s->samplerate);
158 inputFormat.mFormatFlags = kAudioFormatFlagIsFloat | kAudioFormatFlagIsPacked;
159 inputFormat.mChannelsPerFrame = s->channels;
160 inputFormat.mBitsPerChannel = sizeof(smpl_t) * 8;
161 inputFormat.mFramesPerPacket = 1;
162 inputFormat.mBytesPerFrame = inputFormat.mBitsPerChannel * inputFormat.mChannelsPerFrame / 8;
163 inputFormat.mBytesPerPacket = inputFormat.mFramesPerPacket * inputFormat.mBytesPerFrame;
164 OSStatus err = noErr;
165 err = ExtAudioFileCreateWithURL(fileURL, fileType, &clientFormat, NULL,
166 overwrite ? kAudioFileFlags_EraseFile : 0, &s->audioFile);
167 CFRelease(fileURL);
168 if (err) {
169 char_t errorstr[20];
170 AUBIO_ERR("sink_apple_audio: error when trying to create %s with "
171 "ExtAudioFileCreateWithURL (%s)\n", s->path,
172 getPrintableOSStatusError(errorstr, err));
173 goto beach;
174 }
175
176 err = ExtAudioFileSetProperty(s->audioFile,
177 kExtAudioFileProperty_ClientDataFormat,
178 sizeof(AudioStreamBasicDescription), &inputFormat);
179 if (err) {
180 char_t errorstr[20];
181 AUBIO_ERR("sink_apple_audio: error when trying to set output format on %s "
182 "(%s)\n", s->path, getPrintableOSStatusError(errorstr, err));
183 goto beach;
184 }
185
186 if (createAudioBufferList(&s->bufferList, s->channels, s->max_frames * s->channels)) {
187 AUBIO_ERR("sink_apple_audio: error when creating buffer list for %s, "
188 "out of memory? \n", s->path);
189 goto beach;
190 }
191 return AUBIO_OK;
192
193 beach:
194 return AUBIO_FAIL;
195 }
196
aubio_sink_apple_audio_do(aubio_sink_apple_audio_t * s,fvec_t * write_data,uint_t write)197 void aubio_sink_apple_audio_do(aubio_sink_apple_audio_t * s, fvec_t * write_data, uint_t write) {
198 UInt32 c, v;
199 smpl_t *data = (smpl_t*)s->bufferList.mBuffers[0].mData;
200 uint_t length = aubio_sink_validate_input_length("sink_apple_audio", s->path,
201 s->max_frames, write_data->length, write);
202
203 for (c = 0; c < s->channels; c++) {
204 for (v = 0; v < length; v++) {
205 data[v * s->channels + c] = write_data->data[v];
206 }
207 }
208
209 aubio_sink_apple_audio_write(s, length);
210 }
211
aubio_sink_apple_audio_do_multi(aubio_sink_apple_audio_t * s,fmat_t * write_data,uint_t write)212 void aubio_sink_apple_audio_do_multi(aubio_sink_apple_audio_t * s, fmat_t * write_data, uint_t write) {
213 UInt32 c, v;
214 smpl_t *data = (smpl_t*)s->bufferList.mBuffers[0].mData;
215 uint_t channels = aubio_sink_validate_input_channels("sink_apple_audio",
216 s->path, s->channels, write_data->height);
217 uint_t length = aubio_sink_validate_input_length("sink_apple_audio", s->path,
218 s->max_frames, write_data->length, write);
219
220 for (c = 0; c < channels; c++) {
221 for (v = 0; v < length; v++) {
222 data[v * s->channels + c] = write_data->data[c][v];
223 }
224 }
225
226 aubio_sink_apple_audio_write(s, length);
227 }
228
aubio_sink_apple_audio_write(aubio_sink_apple_audio_t * s,uint_t write)229 void aubio_sink_apple_audio_write(aubio_sink_apple_audio_t *s, uint_t write) {
230 OSStatus err = noErr;
231 // set mDataByteSize to match the number of frames to be written
232 // see https://www.mail-archive.com/coreaudio-api@lists.apple.com/msg01109.html
233 s->bufferList.mBuffers[0].mDataByteSize = write * s->channels
234 * sizeof(smpl_t);
235 if (s->async) {
236 err = ExtAudioFileWriteAsync(s->audioFile, write, &s->bufferList);
237 if (err) {
238 char_t errorstr[20];
239 if (err == kExtAudioFileError_AsyncWriteBufferOverflow) {
240 sprintf(errorstr,"buffer overflow");
241 } else if (err == kExtAudioFileError_AsyncWriteTooLarge) {
242 sprintf(errorstr,"write too large");
243 } else {
244 // unknown error
245 getPrintableOSStatusError(errorstr, err);
246 }
247 AUBIO_ERROR("sink_apple_audio: error while writing %s "
248 "in ExtAudioFileWriteAsync (%s)\n", s->path, errorstr);
249 }
250 } else {
251 err = ExtAudioFileWrite(s->audioFile, write, &s->bufferList);
252 if (err) {
253 char_t errorstr[20];
254 AUBIO_ERROR("sink_apple_audio: error while writing %s "
255 "in ExtAudioFileWrite (%s)\n", s->path,
256 getPrintableOSStatusError(errorstr, err));
257 }
258 }
259 }
260
aubio_sink_apple_audio_close(aubio_sink_apple_audio_t * s)261 uint_t aubio_sink_apple_audio_close(aubio_sink_apple_audio_t * s) {
262 OSStatus err = noErr;
263 if (!s->audioFile) {
264 return AUBIO_FAIL;
265 }
266 err = ExtAudioFileDispose(s->audioFile);
267 if (err) {
268 char_t errorstr[20];
269 AUBIO_ERROR("sink_apple_audio: error while closing %s "
270 "in ExtAudioFileDispose (%s)\n", s->path,
271 getPrintableOSStatusError(errorstr, err));
272 }
273 s->audioFile = NULL;
274 return err;
275 }
276
del_aubio_sink_apple_audio(aubio_sink_apple_audio_t * s)277 void del_aubio_sink_apple_audio(aubio_sink_apple_audio_t * s) {
278 AUBIO_ASSERT(s);
279 if (s->audioFile)
280 aubio_sink_apple_audio_close (s);
281 if (s->path)
282 AUBIO_FREE(s->path);
283 freeAudioBufferList(&s->bufferList);
284 AUBIO_FREE(s);
285 }
286
287 #endif /* HAVE_SINK_APPLE_AUDIO */
288