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/*
* Copyright 2020 Max Kellermann <max.kellermann@gmail.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef APPLE_AUDIO_UNIT_HXX
#define APPLE_AUDIO_UNIT_HXX
#include "Throw.hxx"
#include <AudioUnit/AudioUnit.h>
template<typename T>
T
AudioUnitGetPropertyT(AudioUnit inUnit, AudioUnitPropertyID inID,
AudioUnitScope inScope,
AudioUnitElement inElement)
{
UInt32 size = sizeof(T);
T value;
OSStatus status = AudioUnitGetProperty(inUnit, inID, inScope,
inElement,
&value, &size);
if (status != noErr)
Apple::ThrowOSStatus(status);
return value;
}
template<typename T>
void
AudioUnitSetPropertyT(AudioUnit inUnit, AudioUnitPropertyID inID,
AudioUnitScope inScope,
AudioUnitElement inElement,
const T &value)
{
OSStatus status = AudioUnitSetProperty(inUnit, inID, inScope,
inElement,
&value, sizeof(value));
if (status != noErr)
Apple::ThrowOSStatus(status);
}
inline void
AudioUnitSetCurrentDevice(AudioUnit inUnit, const AudioDeviceID &value)
{
AudioUnitSetPropertyT(inUnit, kAudioOutputUnitProperty_CurrentDevice,
kAudioUnitScope_Global, 0,
value);
}
inline void
AudioUnitSetInputStreamFormat(AudioUnit inUnit,
const AudioStreamBasicDescription &value)
{
AudioUnitSetPropertyT(inUnit, kAudioUnitProperty_StreamFormat,
kAudioUnitScope_Input, 0,
value);
}
inline void
AudioUnitSetInputRenderCallback(AudioUnit inUnit,
const AURenderCallbackStruct &value)
{
AudioUnitSetPropertyT(inUnit, kAudioUnitProperty_SetRenderCallback,
kAudioUnitScope_Input, 0,
value);
}
inline UInt32
AudioUnitGetBufferFrameSize(AudioUnit inUnit)
{
return AudioUnitGetPropertyT<UInt32>(inUnit,
kAudioDevicePropertyBufferFrameSize,
kAudioUnitScope_Global, 0);
}
inline void
AudioUnitSetBufferFrameSize(AudioUnit inUnit, const UInt32 &value)
{
AudioUnitSetPropertyT(inUnit, kAudioDevicePropertyBufferFrameSize,
kAudioUnitScope_Global, 0,
value);
}
#endif
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