1 |
iliev |
1829 |
/*************************************************************************** |
2 |
|
|
* * |
3 |
|
|
* LinuxSampler - modular, streaming capable sampler * |
4 |
|
|
* * |
5 |
|
|
* Copyright (C) 2009 Grigor Iliev * |
6 |
|
|
* * |
7 |
|
|
* This program is free software; you can redistribute it and/or modify * |
8 |
|
|
* it under the terms of the GNU General Public License as published by * |
9 |
|
|
* the Free Software Foundation; either version 2 of the License, or * |
10 |
|
|
* (at your option) any later version. * |
11 |
|
|
* * |
12 |
|
|
* This program is distributed in the hope that it will be useful, * |
13 |
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of * |
14 |
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
15 |
|
|
* GNU General Public License for more details. * |
16 |
|
|
* * |
17 |
|
|
* You should have received a copy of the GNU General Public License * |
18 |
|
|
* along with this program; if not, write to the Free Software * |
19 |
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, * |
20 |
|
|
* MA 02111-1307 USA * |
21 |
|
|
***************************************************************************/ |
22 |
|
|
|
23 |
|
|
#include "AudioOutputDeviceCoreAudio.h" |
24 |
|
|
|
25 |
|
|
#include "../../common/global_private.h" |
26 |
|
|
|
27 |
|
|
namespace LinuxSampler { |
28 |
|
|
|
29 |
|
|
void AudioOutputDeviceCoreAudio::HandleOutputBuffer ( |
30 |
|
|
void *aqData, |
31 |
|
|
AudioQueueRef inAQ, |
32 |
|
|
AudioQueueBufferRef inBuffer |
33 |
|
|
) { |
34 |
|
|
AQPlayerState* pAqData = (AQPlayerState*) aqData; |
35 |
|
|
if (atomic_read(&(pAqData->mIsRunning)) == 0) { |
36 |
|
|
AudioQueueFlush(pAqData->mQueue); |
37 |
|
|
AudioQueueStop (pAqData->mQueue, true); |
38 |
|
|
return; |
39 |
|
|
} |
40 |
|
|
uint bufferSize = pAqData->pDevice->uiBufferSize; |
41 |
|
|
|
42 |
|
|
// let all connected engines render 'fragmentSize' sample points |
43 |
|
|
pAqData->pDevice->RenderAudio(bufferSize); |
44 |
|
|
|
45 |
|
|
int16_t* pDataBuf = (int16_t*)(inBuffer->mAudioData); |
46 |
|
|
|
47 |
|
|
uint uiCoreAudioChannels = pAqData->pDevice->uiCoreAudioChannels; |
48 |
|
|
// convert from DSP value range (-1.0..+1.0) to 16 bit integer value |
49 |
|
|
// range (-32768..+32767), check clipping and copy to Alsa output buffer |
50 |
|
|
for (int c = 0; c < uiCoreAudioChannels; c++) { |
51 |
|
|
float* in = pAqData->pDevice->Channels[c]->Buffer(); |
52 |
|
|
for (int i = 0, o = c; i < bufferSize; i++ , o += uiCoreAudioChannels) { |
53 |
|
|
float sample_point = in[i] * 32768.0f; |
54 |
|
|
if (sample_point < -32768.0) sample_point = -32768.0; |
55 |
|
|
if (sample_point > 32767.0) sample_point = 32767.0; |
56 |
|
|
pDataBuf[o] = (int16_t) sample_point; |
57 |
|
|
} |
58 |
|
|
} |
59 |
|
|
|
60 |
|
|
inBuffer->mAudioDataByteSize = (uiCoreAudioChannels * 2) * bufferSize; |
61 |
|
|
|
62 |
|
|
OSStatus res = AudioQueueEnqueueBuffer(pAqData->mQueue, inBuffer, 0, NULL); |
63 |
|
|
if(res) std::cerr << "AudioQueueEnqueueBuffer: Error " << res << std::endl; |
64 |
|
|
} |
65 |
|
|
|
66 |
|
|
AudioOutputDeviceCoreAudio::DeviceInfo* AudioOutputDeviceCoreAudio::pDeviceInfo = NULL; |
67 |
|
|
|
68 |
|
|
AudioOutputDeviceCoreAudio::DeviceInfo* AudioOutputDeviceCoreAudio::GetDeviceInfo() { |
69 |
|
|
if(pDeviceInfo == NULL) { |
70 |
|
|
pDeviceInfo = new DeviceInfo; |
71 |
|
|
|
72 |
|
|
pDeviceInfo->uiSamplerate = 44100; |
73 |
|
|
pDeviceInfo->uiChannelNumber = 2; |
74 |
|
|
|
75 |
|
|
AudioStreamBasicDescription dataFormat; |
76 |
|
|
SetAudioDataFormat(&dataFormat); |
77 |
|
|
AudioQueueRef pQueue = NULL; |
78 |
|
|
|
79 |
|
|
OSStatus res = AudioQueueNewOutput ( |
80 |
|
|
&dataFormat, NULL, NULL, NULL, NULL, 0, &pQueue |
81 |
|
|
); |
82 |
|
|
|
83 |
|
|
if(res) { |
84 |
|
|
std::cerr << "Failed to retrieve device info: " << res << std::endl; |
85 |
|
|
return pDeviceInfo; |
86 |
|
|
} |
87 |
|
|
|
88 |
|
|
UInt32 chns = pDeviceInfo->uiChannelNumber; |
89 |
|
|
UInt32 size = sizeof(chns); |
90 |
|
|
res = AudioQueueGetProperty ( |
91 |
|
|
pQueue, |
92 |
|
|
kAudioQueueDeviceProperty_NumberChannels, |
93 |
|
|
&chns, &size |
94 |
|
|
); |
95 |
|
|
|
96 |
|
|
if(res) std::cerr << "Failed to retrieve channel number: " << res << std::endl; |
97 |
|
|
else pDeviceInfo->uiChannelNumber = chns; |
98 |
|
|
|
99 |
|
|
Float64 sRate = pDeviceInfo->uiSamplerate; |
100 |
|
|
size = sizeof(sRate); |
101 |
|
|
res = AudioQueueGetProperty ( |
102 |
|
|
pQueue, |
103 |
|
|
kAudioQueueDeviceProperty_SampleRate, |
104 |
|
|
&sRate, &size |
105 |
|
|
); |
106 |
|
|
|
107 |
|
|
if(res) std::cerr << "Failed to retrieve samplerate: " << res << std::endl; |
108 |
|
|
else pDeviceInfo->uiSamplerate = (uint)sRate; |
109 |
|
|
|
110 |
|
|
AudioQueueDispose(pQueue, true); |
111 |
|
|
} |
112 |
|
|
|
113 |
|
|
return pDeviceInfo; |
114 |
|
|
} |
115 |
|
|
|
116 |
|
|
AudioOutputDeviceCoreAudio::AudioOutputDeviceCoreAudio ( |
117 |
|
|
std::map<String,DeviceCreationParameter*> Parameters |
118 |
|
|
) : AudioOutputDevice(Parameters), Thread(true, true, 1, 0) { |
119 |
|
|
|
120 |
|
|
dmsg(2,("AudioOutputDeviceCoreAudio::AudioOutputDeviceCoreAudio()\n")); |
121 |
|
|
atomic_set(&pausedNew, 0); |
122 |
|
|
pausedOld = 0; |
123 |
|
|
|
124 |
|
|
uiCoreAudioChannels = ((DeviceCreationParameterInt*)Parameters["CHANNELS"])->ValueAsInt(); |
125 |
|
|
uint samplerate = ((DeviceCreationParameterInt*)Parameters["SAMPLERATE"])->ValueAsInt(); |
126 |
|
|
uiBufferNumber = ((DeviceCreationParameterInt*)Parameters["BUFFERS"])->ValueAsInt(); |
127 |
|
|
uiBufferSize = ((DeviceCreationParameterInt*)Parameters["BUFFERSIZE"])->ValueAsInt(); |
128 |
|
|
|
129 |
|
|
aqPlayerState.mDataFormat.mSampleRate = samplerate; |
130 |
|
|
aqPlayerState.mDataFormat.mFormatID = kAudioFormatLinearPCM; |
131 |
|
|
|
132 |
|
|
aqPlayerState.mDataFormat.mFormatFlags = |
133 |
|
|
kAudioFormatFlagIsSignedInteger | kAudioFormatFlagIsPacked; |
134 |
|
|
|
135 |
|
|
aqPlayerState.mDataFormat.mBytesPerPacket = uiCoreAudioChannels * 2; |
136 |
|
|
aqPlayerState.mDataFormat.mFramesPerPacket = 1; |
137 |
|
|
aqPlayerState.mDataFormat.mBytesPerFrame = uiCoreAudioChannels * 2; |
138 |
|
|
aqPlayerState.mDataFormat.mChannelsPerFrame = uiCoreAudioChannels; |
139 |
|
|
aqPlayerState.mDataFormat.mBitsPerChannel = 16; |
140 |
|
|
|
141 |
|
|
aqPlayerState.mBuffers = new AudioQueueBufferRef[uiBufferNumber]; |
142 |
|
|
|
143 |
|
|
aqPlayerState.bufferByteSize = |
144 |
|
|
MaxSamplesPerCycle() * aqPlayerState.mDataFormat.mBytesPerFrame; |
145 |
|
|
|
146 |
|
|
aqPlayerState.mNumPacketsToRead = MaxSamplesPerCycle(); |
147 |
|
|
|
148 |
|
|
aqPlayerState.pDevice = this; |
149 |
|
|
aqPlayerState.mQueue = NULL; |
150 |
|
|
|
151 |
|
|
uint fragmentSize = MaxSamplesPerCycle(); |
152 |
|
|
// create audio channels for this audio device to which the sampler engines can write to |
153 |
|
|
for (int i = 0; i < uiCoreAudioChannels; i++) { |
154 |
|
|
this->Channels.push_back(new AudioChannel(i, fragmentSize)); |
155 |
|
|
} |
156 |
|
|
|
157 |
|
|
StartThread(); |
158 |
|
|
|
159 |
|
|
if (!((DeviceCreationParameterBool*)Parameters["ACTIVE"])->ValueAsBool()) { |
160 |
|
|
Stop(); |
161 |
|
|
} |
162 |
|
|
} |
163 |
|
|
|
164 |
|
|
AudioOutputDeviceCoreAudio::~AudioOutputDevice() { |
165 |
|
|
atomic_set(&(aqPlayerState.mIsRunning), 0); |
166 |
|
|
destroyMutex.Lock(); |
167 |
|
|
AudioQueueDispose(aqPlayerState.mQueue, true); |
168 |
|
|
destroyMutex.Unlock(); |
169 |
|
|
delete [] aqPlayerState.mBuffers; |
170 |
|
|
} |
171 |
|
|
|
172 |
|
|
void AudioOutputDeviceCoreAudio::SetAudioDataFormat(AudioStreamBasicDescription* pDataFormat) { |
173 |
|
|
pDataFormat->mSampleRate = 44100; |
174 |
|
|
pDataFormat->mFormatID = kAudioFormatLinearPCM; |
175 |
|
|
|
176 |
|
|
pDataFormat->mFormatFlags = |
177 |
|
|
kAudioFormatFlagIsSignedInteger | kAudioFormatFlagIsPacked; |
178 |
|
|
|
179 |
|
|
pDataFormat->mBytesPerPacket = 4; |
180 |
|
|
pDataFormat->mFramesPerPacket = 1; |
181 |
|
|
pDataFormat->mBytesPerFrame = 4; |
182 |
|
|
pDataFormat->mChannelsPerFrame = 2; |
183 |
|
|
pDataFormat->mBitsPerChannel = 16; |
184 |
|
|
} |
185 |
|
|
|
186 |
|
|
String AudioOutputDeviceCoreAudio::Name() { |
187 |
|
|
return "COREAUDIO"; |
188 |
|
|
} |
189 |
|
|
|
190 |
|
|
String AudioOutputDeviceCoreAudio::Description() { |
191 |
|
|
return "Apple CoreAudio"; |
192 |
|
|
} |
193 |
|
|
|
194 |
|
|
String AudioOutputDeviceCoreAudio::Version() { |
195 |
|
|
String s = "$Revision: 1.1 $"; |
196 |
|
|
return s.substr(11, s.size() - 13); // cut dollar signs, spaces and CVS macro keyword |
197 |
|
|
} |
198 |
|
|
|
199 |
|
|
void AudioOutputDeviceCoreAudio::Play() { |
200 |
|
|
atomic_set(&pausedNew, 0); |
201 |
|
|
} |
202 |
|
|
|
203 |
|
|
bool AudioOutputDeviceCoreAudio::IsPlaying() { |
204 |
|
|
return !atomic_read(&pausedNew); |
205 |
|
|
} |
206 |
|
|
|
207 |
|
|
void AudioOutputDeviceCoreAudio::Stop() { |
208 |
|
|
atomic_set(&pausedNew, 1); |
209 |
|
|
} |
210 |
|
|
|
211 |
|
|
uint AudioOutputDeviceCoreAudio::MaxSamplesPerCycle() { |
212 |
|
|
return uiBufferSize; |
213 |
|
|
} |
214 |
|
|
|
215 |
|
|
uint AudioOutputDeviceCoreAudio::SampleRate() { |
216 |
|
|
return aqPlayerState.mDataFormat.mSampleRate; |
217 |
|
|
} |
218 |
|
|
|
219 |
|
|
String AudioOutputDeviceCoreAudio::Driver() { |
220 |
|
|
return Name(); |
221 |
|
|
} |
222 |
|
|
|
223 |
|
|
AudioChannel* AudioOutputDeviceCoreAudio::CreateChannel(uint ChannelNr) { |
224 |
|
|
// just create a mix channel |
225 |
|
|
return new AudioChannel(ChannelNr, Channel(ChannelNr % uiCoreAudioChannels)); |
226 |
|
|
} |
227 |
|
|
|
228 |
|
|
/** |
229 |
|
|
* Entry point for the thread. |
230 |
|
|
*/ |
231 |
|
|
int AudioOutputDeviceCoreAudio::Main() { |
232 |
|
|
dmsg(2,("CoreAudio thread started\n")); |
233 |
|
|
|
234 |
|
|
bool initialized = aqPlayerState.mQueue != NULL; |
235 |
|
|
if(!initialized) { |
236 |
|
|
/* |
237 |
|
|
* Initializing the audio queue |
238 |
|
|
* Need to be run from this thread because of CFRunLoopGetCurrent() |
239 |
|
|
* which returns the CFRunLoop object for the current thread. |
240 |
|
|
*/ |
241 |
|
|
OSStatus res = AudioQueueNewOutput ( |
242 |
|
|
&aqPlayerState.mDataFormat, |
243 |
|
|
HandleOutputBuffer, |
244 |
|
|
&aqPlayerState, |
245 |
|
|
CFRunLoopGetCurrent(), |
246 |
|
|
kCFRunLoopCommonModes, |
247 |
|
|
0, |
248 |
|
|
&aqPlayerState.mQueue |
249 |
|
|
); |
250 |
|
|
|
251 |
|
|
if(res) { |
252 |
|
|
String s = String("AudioQueueNewOutput: Error ") + ToString(res); |
253 |
|
|
throw Exception(s); |
254 |
|
|
} |
255 |
|
|
|
256 |
|
|
for (int i = 0; i < uiBufferNumber; ++i) { |
257 |
|
|
OSStatus res = AudioQueueAllocateBuffer ( |
258 |
|
|
aqPlayerState.mQueue, |
259 |
|
|
aqPlayerState.bufferByteSize, |
260 |
|
|
&aqPlayerState.mBuffers[i] |
261 |
|
|
); |
262 |
|
|
|
263 |
|
|
if(res) { |
264 |
|
|
String s = String("AudioQueueAllocateBuffer: Error "); |
265 |
|
|
throw Exception(s + ToString(res)); |
266 |
|
|
} |
267 |
|
|
} |
268 |
|
|
} |
269 |
|
|
|
270 |
|
|
for (int i = 0; i < uiBufferNumber; ++i) { |
271 |
|
|
HandleOutputBuffer ( |
272 |
|
|
&aqPlayerState, |
273 |
|
|
aqPlayerState.mQueue, |
274 |
|
|
aqPlayerState.mBuffers[i] |
275 |
|
|
); |
276 |
|
|
} |
277 |
|
|
|
278 |
|
|
Float32 gain = 1.0; |
279 |
|
|
|
280 |
|
|
OSStatus res = AudioQueueSetParameter ( |
281 |
|
|
aqPlayerState.mQueue, |
282 |
|
|
kAudioQueueParam_Volume, |
283 |
|
|
gain |
284 |
|
|
); |
285 |
|
|
|
286 |
|
|
if(res) std::cerr << "AudioQueueSetParameter: Error " << res << std::endl; |
287 |
|
|
|
288 |
|
|
atomic_set(&(aqPlayerState.mIsRunning), 1); |
289 |
|
|
|
290 |
|
|
if(!initialized) { |
291 |
|
|
res = AudioQueuePrime(aqPlayerState.mQueue, 0, NULL); |
292 |
|
|
if(res) { |
293 |
|
|
String s = String("AudioQueuePrime: Error ") + ToString(res); |
294 |
|
|
throw Exception(s); |
295 |
|
|
} |
296 |
|
|
} |
297 |
|
|
|
298 |
|
|
res = AudioQueueStart(aqPlayerState.mQueue, NULL); |
299 |
|
|
if(res) { |
300 |
|
|
String s = String("AudioQueueStart: Error ") + ToString(res); |
301 |
|
|
throw Exception(s); |
302 |
|
|
} |
303 |
|
|
|
304 |
|
|
destroyMutex.Lock(); |
305 |
|
|
do { |
306 |
|
|
if(atomic_read(&pausedNew) != pausedOld) { |
307 |
|
|
pausedOld = atomic_read(&pausedNew); |
308 |
|
|
|
309 |
|
|
if(pausedOld) { |
310 |
|
|
res = AudioQueuePause(aqPlayerState.mQueue); |
311 |
|
|
if(res) std::cerr << "AudioQueuePause: Error " << res << std::endl; |
312 |
|
|
} else { |
313 |
|
|
res = AudioQueuePrime(aqPlayerState.mQueue, 0, NULL); |
314 |
|
|
if(res) std::cerr << "AudioQueuePrime: Error " << res << std::endl; |
315 |
|
|
res = AudioQueueStart(aqPlayerState.mQueue, NULL); |
316 |
|
|
if(res) std::cerr << "AudioQueueStart: Error " << res << std::endl; |
317 |
|
|
} |
318 |
|
|
} |
319 |
|
|
|
320 |
|
|
CFRunLoopRunInMode(kCFRunLoopDefaultMode, 0.2, false); |
321 |
|
|
} while (atomic_read(&(aqPlayerState.mIsRunning))); |
322 |
|
|
destroyMutex.Unlock(); |
323 |
|
|
|
324 |
|
|
dmsg(2,("CoreAudio thread stopped\n")); |
325 |
|
|
|
326 |
|
|
return 0; |
327 |
|
|
} |
328 |
|
|
|
329 |
|
|
|
330 |
|
|
// *************** ParameterSampleRate *************** |
331 |
|
|
// * |
332 |
|
|
|
333 |
|
|
AudioOutputDeviceCoreAudio::ParameterSampleRate::ParameterSampleRate() : |
334 |
|
|
AudioOutputDevice::ParameterSampleRate::ParameterSampleRate() { |
335 |
|
|
|
336 |
|
|
} |
337 |
|
|
|
338 |
|
|
AudioOutputDeviceCoreAudio::ParameterSampleRate::ParameterSampleRate(String s) : |
339 |
|
|
AudioOutputDevice::ParameterSampleRate::ParameterSampleRate(s) { |
340 |
|
|
|
341 |
|
|
} |
342 |
|
|
|
343 |
|
|
optional<int> |
344 |
|
|
AudioOutputDeviceCoreAudio::ParameterSampleRate::DefaultAsInt(std::map<String,String> Parameters) { |
345 |
|
|
dmsg(2,("AudioOutputDeviceCoreAudio::ParameterSampleRate::DefaultAsInt()\n")); |
346 |
|
|
return GetDeviceInfo()->uiSamplerate; |
347 |
|
|
} |
348 |
|
|
|
349 |
|
|
|
350 |
|
|
// *************** ParameterChannels *************** |
351 |
|
|
// * |
352 |
|
|
|
353 |
|
|
AudioOutputDeviceCoreAudio::ParameterChannels::ParameterChannels() : |
354 |
|
|
AudioOutputDevice::ParameterChannels::ParameterChannels() { |
355 |
|
|
|
356 |
|
|
} |
357 |
|
|
|
358 |
|
|
AudioOutputDeviceCoreAudio::ParameterChannels::ParameterChannels(String s) : |
359 |
|
|
AudioOutputDevice::ParameterChannels::ParameterChannels(s) { |
360 |
|
|
|
361 |
|
|
} |
362 |
|
|
|
363 |
|
|
optional<int> |
364 |
|
|
AudioOutputDeviceCoreAudio::ParameterChannels::DefaultAsInt(std::map<String,String> Parameters) { |
365 |
|
|
dmsg(2,("AudioOutputDeviceCoreAudio::ParameterChannels::DefaultAsInt()\n")); |
366 |
|
|
return GetDeviceInfo()->uiChannelNumber; |
367 |
|
|
} |
368 |
|
|
|
369 |
|
|
// *************** ParameterBuffers *************** |
370 |
|
|
// * |
371 |
|
|
|
372 |
|
|
AudioOutputDeviceCoreAudio::ParameterBuffers::ParameterBuffers() : DeviceCreationParameterInt() { |
373 |
|
|
InitWithDefault(); |
374 |
|
|
} |
375 |
|
|
|
376 |
|
|
AudioOutputDeviceCoreAudio::ParameterBuffers::ParameterBuffers(String s) |
377 |
|
|
throw (Exception) : DeviceCreationParameterInt(s) { |
378 |
|
|
} |
379 |
|
|
|
380 |
|
|
String AudioOutputDeviceCoreAudio::ParameterBuffers::Description() { |
381 |
|
|
return "Number of audio buffer"; |
382 |
|
|
} |
383 |
|
|
|
384 |
|
|
bool AudioOutputDeviceCoreAudio::ParameterBuffers::Fix() { |
385 |
|
|
return true; |
386 |
|
|
} |
387 |
|
|
|
388 |
|
|
bool AudioOutputDeviceCoreAudio::ParameterBuffers::Mandatory() { |
389 |
|
|
return false; |
390 |
|
|
} |
391 |
|
|
|
392 |
|
|
std::map<String,DeviceCreationParameter*> |
393 |
|
|
AudioOutputDeviceCoreAudio::ParameterBuffers::DependsAsParameters() { |
394 |
|
|
return std::map<String,DeviceCreationParameter*>(); |
395 |
|
|
} |
396 |
|
|
|
397 |
|
|
optional<int> |
398 |
|
|
AudioOutputDeviceCoreAudio::ParameterBuffers::DefaultAsInt(std::map<String,String> Parameters) { |
399 |
|
|
return 3; |
400 |
|
|
} |
401 |
|
|
|
402 |
|
|
optional<int> |
403 |
|
|
AudioOutputDeviceCoreAudio::ParameterBuffers::RangeMinAsInt(std::map<String,String> Parameters) { |
404 |
|
|
return 2; |
405 |
|
|
} |
406 |
|
|
|
407 |
|
|
optional<int> |
408 |
|
|
AudioOutputDeviceCoreAudio::ParameterBuffers::RangeMaxAsInt(std::map<String,String> Parameters) { |
409 |
|
|
return 16; |
410 |
|
|
} |
411 |
|
|
|
412 |
|
|
std::vector<int> |
413 |
|
|
AudioOutputDeviceCoreAudio::ParameterBuffers::PossibilitiesAsInt(std::map<String,String> Parameters) { |
414 |
|
|
return std::vector<int>(); |
415 |
|
|
} |
416 |
|
|
|
417 |
|
|
void AudioOutputDeviceCoreAudio::ParameterBuffers::OnSetValue(int i) throw (Exception) { |
418 |
|
|
// not posssible, as parameter is fix |
419 |
|
|
} |
420 |
|
|
|
421 |
|
|
String AudioOutputDeviceCoreAudio::ParameterBuffers::Name() { |
422 |
|
|
return "BUFFERS"; |
423 |
|
|
} |
424 |
|
|
|
425 |
|
|
// *************** ParameterBufferSize *************** |
426 |
|
|
// * |
427 |
|
|
|
428 |
|
|
AudioOutputDeviceCoreAudio::ParameterBufferSize::ParameterBufferSize() : DeviceCreationParameterInt() { |
429 |
|
|
InitWithDefault(); |
430 |
|
|
} |
431 |
|
|
|
432 |
|
|
AudioOutputDeviceCoreAudio::ParameterBufferSize::ParameterBufferSize(String s) |
433 |
|
|
throw (Exception) : DeviceCreationParameterInt(s) { |
434 |
|
|
} |
435 |
|
|
|
436 |
|
|
String AudioOutputDeviceCoreAudio::ParameterBufferSize::Description() { |
437 |
|
|
return "Size of the audio buffer in sample frames"; |
438 |
|
|
} |
439 |
|
|
|
440 |
|
|
bool AudioOutputDeviceCoreAudio::ParameterBufferSize::Fix() { |
441 |
|
|
return true; |
442 |
|
|
} |
443 |
|
|
|
444 |
|
|
bool AudioOutputDeviceCoreAudio::ParameterBufferSize::Mandatory() { |
445 |
|
|
return false; |
446 |
|
|
} |
447 |
|
|
|
448 |
|
|
std::map<String,DeviceCreationParameter*> |
449 |
|
|
AudioOutputDeviceCoreAudio::ParameterBufferSize::DependsAsParameters() { |
450 |
|
|
return std::map<String,DeviceCreationParameter*>(); |
451 |
|
|
} |
452 |
|
|
|
453 |
|
|
optional<int> |
454 |
|
|
AudioOutputDeviceCoreAudio::ParameterBufferSize::DefaultAsInt(std::map<String,String> Parameters) { |
455 |
|
|
return 128; |
456 |
|
|
} |
457 |
|
|
|
458 |
|
|
optional<int> |
459 |
|
|
AudioOutputDeviceCoreAudio::ParameterBufferSize::RangeMinAsInt(std::map<String,String> Parameters) { |
460 |
|
|
return 32; |
461 |
|
|
} |
462 |
|
|
|
463 |
|
|
optional<int> |
464 |
|
|
AudioOutputDeviceCoreAudio::ParameterBufferSize::RangeMaxAsInt(std::map<String,String> Parameters) { |
465 |
|
|
return 4096; |
466 |
|
|
} |
467 |
|
|
|
468 |
|
|
std::vector<int> |
469 |
|
|
AudioOutputDeviceCoreAudio::ParameterBufferSize::PossibilitiesAsInt(std::map<String,String> Parameters) { |
470 |
|
|
return std::vector<int>(); |
471 |
|
|
} |
472 |
|
|
|
473 |
|
|
void AudioOutputDeviceCoreAudio::ParameterBufferSize::OnSetValue(int i) throw (Exception) { |
474 |
|
|
// not posssible, as parameter is fix |
475 |
|
|
} |
476 |
|
|
|
477 |
|
|
String AudioOutputDeviceCoreAudio::ParameterBufferSize::Name() { |
478 |
|
|
return "BUFFERSIZE"; |
479 |
|
|
} |
480 |
|
|
} // namespace LinuxSampler |