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CoreAudio: Proper success returns in various property getters
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src/CoreAudio/CoreAudio/AudioHardwareImpl.cpp
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src/CoreAudio/CoreAudio/AudioHardwareImpl.cpp
···
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asbd->mBytesPerFrame = UInt32(asbd->mBytesPerPacket = asbd->mChannelsPerFrame * asbd->mSampleRate * asbd->mBitsPerChannel / 8);
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}
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*ioDataSize = sizeof(AudioStreamBasicDescription);
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return noErr;
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return kAudioHardwareNoError;
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}
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case kAudioDevicePropertyDeviceManufacturer:
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return getPropertyString(m_manufacturer, ioDataSize, outData);
···
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*flt = 44100;
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*ioDataSize = sizeof(Float64);
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return noErr;
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return kAudioHardwareNoError;
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}
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case kAudioDevicePropertyAvailableNominalSampleRates: // AudioValueRange[]
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{
···
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avr->mMaximum = 44100;
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}
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*ioDataSize = sizeof(AudioValueRange) * 1;
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return noErr;
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return kAudioHardwareNoError;
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}
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}
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src/CoreAudio/CoreAudio/AudioHardwareImplPA.cpp
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src/CoreAudio/CoreAudio/AudioHardwareImplPA.cpp
···
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*/
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#include "AudioHardwareImplPA.h"
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#include "stub.h"
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AudioHardwareImplPA::AudioHardwareImplPA()
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{
···
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*devId = kAudioObjectSystemObject;
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}
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*ioDataSize = sizeof(AudioDeviceID);
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break;
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return kAudioHardwareNoError;
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case kAudioHardwarePropertyDefaultOutputDevice: // returns AudioDeviceID
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if (AudioDeviceID* devId = static_cast<AudioDeviceID*>(outData); devId && *ioDataSize >= sizeof(AudioDeviceID))
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{
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*devId = kAudioObjectSystemObject;
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}
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*ioDataSize = sizeof(AudioDeviceID);
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break;
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return kAudioHardwareNoError;
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case kAudioHardwarePropertyDevices:
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{
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if (AudioDeviceID* devId = static_cast<AudioDeviceID*>(outData); devId && *ioDataSize >= sizeof(AudioDeviceID))
···
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devId[0] = kAudioObjectSystemObject;
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}
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*ioDataSize = sizeof(AudioDeviceID) * 1;
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break;
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return kAudioHardwareNoError;
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}
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// END kAudioObjectSystemObject properties
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···
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}
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*ioDataSize = size;
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break;
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return kAudioHardwareNoError;
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}
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}
···
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AudioHardwareStream* AudioHardwareImplPA::createStream(AudioDeviceIOProcID procID)
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{
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// TODO
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STUB();
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return nullptr;
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}