/* * Copyright 2020 Max Kellermann * * 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 template 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 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(inUnit, kAudioDevicePropertyBufferFrameSize, kAudioUnitScope_Global, 0); } inline void AudioUnitSetBufferFrameSize(AudioUnit inUnit, const UInt32 &value) { AudioUnitSetPropertyT(inUnit, kAudioDevicePropertyBufferFrameSize, kAudioUnitScope_Global, 0, value); } #endif