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/*************************************************************************** |
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* * |
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* LinuxSampler - modular, streaming capable sampler * |
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* * |
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* Copyright (C) 2009 Grigor Iliev * |
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* * |
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* This program is free software; you can redistribute it and/or modify * |
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* it under the terms of the GNU General Public License as published by * |
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* the Free Software Foundation; either version 2 of the License, or * |
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* (at your option) any later version. * |
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* * |
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* This program is distributed in the hope that it will be useful, * |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of * |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
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* GNU General Public License for more details. * |
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* * |
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* You should have received a copy of the GNU General Public License * |
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* along with this program; if not, write to the Free Software * |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, * |
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* MA 02111-1307 USA * |
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***************************************************************************/ |
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|
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#include "AudioOutputDeviceCoreAudio.h" |
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|
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#include "../../common/global_private.h" |
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|
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namespace LinuxSampler { |
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|
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void AudioOutputDeviceCoreAudio::HandleOutputBuffer ( |
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void *aqData, |
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AudioQueueRef inAQ, |
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AudioQueueBufferRef inBuffer |
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) { |
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AQPlayerState* pAqData = (AQPlayerState*) aqData; |
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if (atomic_read(&(pAqData->mIsRunning)) == 0) { |
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AudioQueueFlush(pAqData->mQueue); |
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AudioQueueStop (pAqData->mQueue, true); |
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return; |
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} |
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uint bufferSize = pAqData->pDevice->uiBufferSize; |
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|
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// let all connected engines render 'fragmentSize' sample points |
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pAqData->pDevice->RenderAudio(bufferSize); |
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|
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int16_t* pDataBuf = (int16_t*)(inBuffer->mAudioData); |
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|
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uint uiCoreAudioChannels = pAqData->pDevice->uiCoreAudioChannels; |
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// convert from DSP value range (-1.0..+1.0) to 16 bit integer value |
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// range (-32768..+32767), check clipping and copy to Alsa output buffer |
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for (int c = 0; c < uiCoreAudioChannels; c++) { |
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float* in = pAqData->pDevice->Channels[c]->Buffer(); |
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for (int i = 0, o = c; i < bufferSize; i++ , o += uiCoreAudioChannels) { |
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float sample_point = in[i] * 32768.0f; |
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if (sample_point < -32768.0) sample_point = -32768.0; |
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if (sample_point > 32767.0) sample_point = 32767.0; |
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pDataBuf[o] = (int16_t) sample_point; |
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} |
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} |
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|
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inBuffer->mAudioDataByteSize = (uiCoreAudioChannels * 2) * bufferSize; |
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|
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OSStatus res = AudioQueueEnqueueBuffer(pAqData->mQueue, inBuffer, 0, NULL); |
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if(res) std::cerr << "AudioQueueEnqueueBuffer: Error " << res << std::endl; |
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} |
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|
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AudioOutputDeviceCoreAudio::DeviceInfo* AudioOutputDeviceCoreAudio::pDeviceInfo = NULL; |
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|
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AudioOutputDeviceCoreAudio::DeviceInfo* AudioOutputDeviceCoreAudio::GetDeviceInfo() { |
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if(pDeviceInfo == NULL) { |
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pDeviceInfo = new DeviceInfo; |
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|
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pDeviceInfo->uiSamplerate = 44100; |
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pDeviceInfo->uiChannelNumber = 2; |
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|
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AudioStreamBasicDescription dataFormat; |
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SetAudioDataFormat(&dataFormat); |
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AudioQueueRef pQueue = NULL; |
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|
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OSStatus res = AudioQueueNewOutput ( |
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&dataFormat, NULL, NULL, NULL, NULL, 0, &pQueue |
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); |
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|
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if(res) { |
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std::cerr << "Failed to retrieve device info: " << res << std::endl; |
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return pDeviceInfo; |
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} |
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|
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UInt32 chns = pDeviceInfo->uiChannelNumber; |
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UInt32 size = sizeof(chns); |
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res = AudioQueueGetProperty ( |
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pQueue, |
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kAudioQueueDeviceProperty_NumberChannels, |
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&chns, &size |
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); |
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|
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if(res) std::cerr << "Failed to retrieve channel number: " << res << std::endl; |
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else pDeviceInfo->uiChannelNumber = chns; |
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|
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Float64 sRate = pDeviceInfo->uiSamplerate; |
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size = sizeof(sRate); |
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res = AudioQueueGetProperty ( |
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pQueue, |
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kAudioQueueDeviceProperty_SampleRate, |
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&sRate, &size |
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); |
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|
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if(res) std::cerr << "Failed to retrieve samplerate: " << res << std::endl; |
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else pDeviceInfo->uiSamplerate = (uint)sRate; |
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|
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AudioQueueDispose(pQueue, true); |
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} |
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|
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return pDeviceInfo; |
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} |
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|
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AudioOutputDeviceCoreAudio::AudioOutputDeviceCoreAudio ( |
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std::map<String,DeviceCreationParameter*> Parameters |
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) : AudioOutputDevice(Parameters), Thread(true, true, 1, 0) { |
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|
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dmsg(2,("AudioOutputDeviceCoreAudio::AudioOutputDeviceCoreAudio()\n")); |
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atomic_set(&pausedNew, 0); |
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pausedOld = 0; |
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|
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uiCoreAudioChannels = ((DeviceCreationParameterInt*)Parameters["CHANNELS"])->ValueAsInt(); |
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uint samplerate = ((DeviceCreationParameterInt*)Parameters["SAMPLERATE"])->ValueAsInt(); |
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uiBufferNumber = ((DeviceCreationParameterInt*)Parameters["BUFFERS"])->ValueAsInt(); |
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uiBufferSize = ((DeviceCreationParameterInt*)Parameters["BUFFERSIZE"])->ValueAsInt(); |
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|
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aqPlayerState.mDataFormat.mSampleRate = samplerate; |
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aqPlayerState.mDataFormat.mFormatID = kAudioFormatLinearPCM; |
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|
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aqPlayerState.mDataFormat.mFormatFlags = |
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kAudioFormatFlagIsSignedInteger | kAudioFormatFlagIsPacked; |
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|
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aqPlayerState.mDataFormat.mBytesPerPacket = uiCoreAudioChannels * 2; |
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aqPlayerState.mDataFormat.mFramesPerPacket = 1; |
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aqPlayerState.mDataFormat.mBytesPerFrame = uiCoreAudioChannels * 2; |
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aqPlayerState.mDataFormat.mChannelsPerFrame = uiCoreAudioChannels; |
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aqPlayerState.mDataFormat.mBitsPerChannel = 16; |
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|
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aqPlayerState.mBuffers = new AudioQueueBufferRef[uiBufferNumber]; |
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|
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aqPlayerState.bufferByteSize = |
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MaxSamplesPerCycle() * aqPlayerState.mDataFormat.mBytesPerFrame; |
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|
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aqPlayerState.mNumPacketsToRead = MaxSamplesPerCycle(); |
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|
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aqPlayerState.pDevice = this; |
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aqPlayerState.mQueue = NULL; |
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|
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uint fragmentSize = MaxSamplesPerCycle(); |
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// create audio channels for this audio device to which the sampler engines can write to |
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for (int i = 0; i < uiCoreAudioChannels; i++) { |
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this->Channels.push_back(new AudioChannel(i, fragmentSize)); |
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} |
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|
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StartThread(); |
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|
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if (!((DeviceCreationParameterBool*)Parameters["ACTIVE"])->ValueAsBool()) { |
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Stop(); |
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} |
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} |
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|
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AudioOutputDeviceCoreAudio::~AudioOutputDevice() { |
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atomic_set(&(aqPlayerState.mIsRunning), 0); |
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destroyMutex.Lock(); |
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AudioQueueDispose(aqPlayerState.mQueue, true); |
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destroyMutex.Unlock(); |
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delete [] aqPlayerState.mBuffers; |
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} |
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|
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void AudioOutputDeviceCoreAudio::SetAudioDataFormat(AudioStreamBasicDescription* pDataFormat) { |
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pDataFormat->mSampleRate = 44100; |
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pDataFormat->mFormatID = kAudioFormatLinearPCM; |
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|
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pDataFormat->mFormatFlags = |
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kAudioFormatFlagIsSignedInteger | kAudioFormatFlagIsPacked; |
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|
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pDataFormat->mBytesPerPacket = 4; |
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pDataFormat->mFramesPerPacket = 1; |
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pDataFormat->mBytesPerFrame = 4; |
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pDataFormat->mChannelsPerFrame = 2; |
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pDataFormat->mBitsPerChannel = 16; |
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} |
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|
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String AudioOutputDeviceCoreAudio::Name() { |
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return "COREAUDIO"; |
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} |
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|
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String AudioOutputDeviceCoreAudio::Description() { |
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return "Apple CoreAudio"; |
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} |
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|
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String AudioOutputDeviceCoreAudio::Version() { |
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String s = "$Revision: 1.1 $"; |
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return s.substr(11, s.size() - 13); // cut dollar signs, spaces and CVS macro keyword |
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} |
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|
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void AudioOutputDeviceCoreAudio::Play() { |
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atomic_set(&pausedNew, 0); |
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} |
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|
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bool AudioOutputDeviceCoreAudio::IsPlaying() { |
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return !atomic_read(&pausedNew); |
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} |
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|
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void AudioOutputDeviceCoreAudio::Stop() { |
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atomic_set(&pausedNew, 1); |
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} |
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|
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uint AudioOutputDeviceCoreAudio::MaxSamplesPerCycle() { |
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return uiBufferSize; |
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} |
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|
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uint AudioOutputDeviceCoreAudio::SampleRate() { |
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return aqPlayerState.mDataFormat.mSampleRate; |
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} |
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|
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String AudioOutputDeviceCoreAudio::Driver() { |
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return Name(); |
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} |
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|
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AudioChannel* AudioOutputDeviceCoreAudio::CreateChannel(uint ChannelNr) { |
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// just create a mix channel |
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return new AudioChannel(ChannelNr, Channel(ChannelNr % uiCoreAudioChannels)); |
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} |
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|
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/** |
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* Entry point for the thread. |
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*/ |
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int AudioOutputDeviceCoreAudio::Main() { |
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dmsg(2,("CoreAudio thread started\n")); |
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|
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bool initialized = aqPlayerState.mQueue != NULL; |
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if(!initialized) { |
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/* |
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* Initializing the audio queue |
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* Need to be run from this thread because of CFRunLoopGetCurrent() |
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* which returns the CFRunLoop object for the current thread. |
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*/ |
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OSStatus res = AudioQueueNewOutput ( |
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&aqPlayerState.mDataFormat, |
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HandleOutputBuffer, |
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&aqPlayerState, |
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CFRunLoopGetCurrent(), |
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kCFRunLoopCommonModes, |
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0, |
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&aqPlayerState.mQueue |
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); |
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|
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if(res) { |
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String s = String("AudioQueueNewOutput: Error ") + ToString(res); |
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throw Exception(s); |
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} |
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|
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for (int i = 0; i < uiBufferNumber; ++i) { |
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OSStatus res = AudioQueueAllocateBuffer ( |
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aqPlayerState.mQueue, |
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aqPlayerState.bufferByteSize, |
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&aqPlayerState.mBuffers[i] |
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); |
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|
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if(res) { |
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String s = String("AudioQueueAllocateBuffer: Error "); |
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throw Exception(s + ToString(res)); |
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} |
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} |
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} |
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|
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for (int i = 0; i < uiBufferNumber; ++i) { |
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HandleOutputBuffer ( |
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&aqPlayerState, |
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aqPlayerState.mQueue, |
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aqPlayerState.mBuffers[i] |
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); |
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} |
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|
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Float32 gain = 1.0; |
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|
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OSStatus res = AudioQueueSetParameter ( |
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aqPlayerState.mQueue, |
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kAudioQueueParam_Volume, |
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gain |
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); |
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|
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if(res) std::cerr << "AudioQueueSetParameter: Error " << res << std::endl; |
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|
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atomic_set(&(aqPlayerState.mIsRunning), 1); |
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|
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if(!initialized) { |
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res = AudioQueuePrime(aqPlayerState.mQueue, 0, NULL); |
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if(res) { |
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String s = String("AudioQueuePrime: Error ") + ToString(res); |
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throw Exception(s); |
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} |
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} |
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|
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res = AudioQueueStart(aqPlayerState.mQueue, NULL); |
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if(res) { |
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String s = String("AudioQueueStart: Error ") + ToString(res); |
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throw Exception(s); |
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} |
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|
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destroyMutex.Lock(); |
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do { |
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if(atomic_read(&pausedNew) != pausedOld) { |
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pausedOld = atomic_read(&pausedNew); |
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|
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if(pausedOld) { |
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res = AudioQueuePause(aqPlayerState.mQueue); |
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if(res) std::cerr << "AudioQueuePause: Error " << res << std::endl; |
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} else { |
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res = AudioQueuePrime(aqPlayerState.mQueue, 0, NULL); |
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if(res) std::cerr << "AudioQueuePrime: Error " << res << std::endl; |
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res = AudioQueueStart(aqPlayerState.mQueue, NULL); |
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if(res) std::cerr << "AudioQueueStart: Error " << res << std::endl; |
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} |
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} |
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|
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CFRunLoopRunInMode(kCFRunLoopDefaultMode, 0.2, false); |
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} while (atomic_read(&(aqPlayerState.mIsRunning))); |
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destroyMutex.Unlock(); |
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|
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dmsg(2,("CoreAudio thread stopped\n")); |
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|
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return 0; |
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} |
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|
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|
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// *************** ParameterSampleRate *************** |
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// * |
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|
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AudioOutputDeviceCoreAudio::ParameterSampleRate::ParameterSampleRate() : |
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AudioOutputDevice::ParameterSampleRate::ParameterSampleRate() { |
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|
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} |
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|
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AudioOutputDeviceCoreAudio::ParameterSampleRate::ParameterSampleRate(String s) : |
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AudioOutputDevice::ParameterSampleRate::ParameterSampleRate(s) { |
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|
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} |
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|
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optional<int> |
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AudioOutputDeviceCoreAudio::ParameterSampleRate::DefaultAsInt(std::map<String,String> Parameters) { |
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dmsg(2,("AudioOutputDeviceCoreAudio::ParameterSampleRate::DefaultAsInt()\n")); |
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return GetDeviceInfo()->uiSamplerate; |
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} |
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|
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|
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// *************** ParameterChannels *************** |
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// * |
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|
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AudioOutputDeviceCoreAudio::ParameterChannels::ParameterChannels() : |
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AudioOutputDevice::ParameterChannels::ParameterChannels() { |
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|
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} |
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|
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AudioOutputDeviceCoreAudio::ParameterChannels::ParameterChannels(String s) : |
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AudioOutputDevice::ParameterChannels::ParameterChannels(s) { |
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|
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} |
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|
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optional<int> |
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AudioOutputDeviceCoreAudio::ParameterChannels::DefaultAsInt(std::map<String,String> Parameters) { |
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dmsg(2,("AudioOutputDeviceCoreAudio::ParameterChannels::DefaultAsInt()\n")); |
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return GetDeviceInfo()->uiChannelNumber; |
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} |
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|
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// *************** ParameterBuffers *************** |
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// * |
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|
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AudioOutputDeviceCoreAudio::ParameterBuffers::ParameterBuffers() : DeviceCreationParameterInt() { |
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InitWithDefault(); |
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} |
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|
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AudioOutputDeviceCoreAudio::ParameterBuffers::ParameterBuffers(String s) |
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throw (Exception) : DeviceCreationParameterInt(s) { |
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} |
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|
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String AudioOutputDeviceCoreAudio::ParameterBuffers::Description() { |
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return "Number of audio buffer"; |
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} |
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|
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bool AudioOutputDeviceCoreAudio::ParameterBuffers::Fix() { |
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return true; |
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} |
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|
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bool AudioOutputDeviceCoreAudio::ParameterBuffers::Mandatory() { |
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return false; |
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} |
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|
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std::map<String,DeviceCreationParameter*> |
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AudioOutputDeviceCoreAudio::ParameterBuffers::DependsAsParameters() { |
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return std::map<String,DeviceCreationParameter*>(); |
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} |
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|
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optional<int> |
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AudioOutputDeviceCoreAudio::ParameterBuffers::DefaultAsInt(std::map<String,String> Parameters) { |
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return 3; |
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} |
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|
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optional<int> |
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AudioOutputDeviceCoreAudio::ParameterBuffers::RangeMinAsInt(std::map<String,String> Parameters) { |
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return 2; |
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} |
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|
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optional<int> |
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AudioOutputDeviceCoreAudio::ParameterBuffers::RangeMaxAsInt(std::map<String,String> Parameters) { |
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return 16; |
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} |
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|
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std::vector<int> |
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AudioOutputDeviceCoreAudio::ParameterBuffers::PossibilitiesAsInt(std::map<String,String> Parameters) { |
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return std::vector<int>(); |
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} |
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|
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void AudioOutputDeviceCoreAudio::ParameterBuffers::OnSetValue(int i) throw (Exception) { |
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// not posssible, as parameter is fix |
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} |
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|
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String AudioOutputDeviceCoreAudio::ParameterBuffers::Name() { |
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return "BUFFERS"; |
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} |
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|
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// *************** ParameterBufferSize *************** |
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// * |
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|
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AudioOutputDeviceCoreAudio::ParameterBufferSize::ParameterBufferSize() : DeviceCreationParameterInt() { |
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InitWithDefault(); |
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} |
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|
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AudioOutputDeviceCoreAudio::ParameterBufferSize::ParameterBufferSize(String s) |
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throw (Exception) : DeviceCreationParameterInt(s) { |
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} |
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|
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String AudioOutputDeviceCoreAudio::ParameterBufferSize::Description() { |
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return "Size of the audio buffer in sample frames"; |
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} |
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|
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bool AudioOutputDeviceCoreAudio::ParameterBufferSize::Fix() { |
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return true; |
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} |
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|
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bool AudioOutputDeviceCoreAudio::ParameterBufferSize::Mandatory() { |
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return false; |
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} |
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|
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std::map<String,DeviceCreationParameter*> |
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AudioOutputDeviceCoreAudio::ParameterBufferSize::DependsAsParameters() { |
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return std::map<String,DeviceCreationParameter*>(); |
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} |
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|
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optional<int> |
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AudioOutputDeviceCoreAudio::ParameterBufferSize::DefaultAsInt(std::map<String,String> Parameters) { |
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return 128; |
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} |
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|
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optional<int> |
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AudioOutputDeviceCoreAudio::ParameterBufferSize::RangeMinAsInt(std::map<String,String> Parameters) { |
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return 32; |
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} |
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|
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optional<int> |
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AudioOutputDeviceCoreAudio::ParameterBufferSize::RangeMaxAsInt(std::map<String,String> Parameters) { |
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return 4096; |
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} |
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|
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std::vector<int> |
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AudioOutputDeviceCoreAudio::ParameterBufferSize::PossibilitiesAsInt(std::map<String,String> Parameters) { |
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return std::vector<int>(); |
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} |
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|
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void AudioOutputDeviceCoreAudio::ParameterBufferSize::OnSetValue(int i) throw (Exception) { |
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// not posssible, as parameter is fix |
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} |
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|
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String AudioOutputDeviceCoreAudio::ParameterBufferSize::Name() { |
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return "BUFFERSIZE"; |
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} |
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} // namespace LinuxSampler |