AudioUnitCreate(), AudioUnitDispose()

gistfile1.c

#include <AudioToolbox/AudioToolbox.h>

/*
    AudioUnit unit = AudioUnitCreate(kAudioUnitType_Output, kAudioUnitSubType_RemoteIO);
 
    // set properties
 
    AudioUnitInitialize(unit);
    AudioOutputUnitStart(unit);
 
    // play
    
    AudioOutputUnitStop(unit);
    AudioUnitUninitialize(unit);
    AudioUnitDispose(unit);
 */

AudioUnit AudioUnitCreate(OSType type, OSType subType)
{
    AudioComponentDescription desc;
    desc.componentType = type;
	desc.componentSubType = subType;
    desc.componentManufacturer = kAudioUnitManufacturer_Apple;
	desc.componentFlags = 0;
    desc.componentFlagsMask = 0;
    
    AudioComponent comp = AudioComponentFindNext(NULL, &desc);
    if (comp == NULL) return NULL;
    
    AudioUnit unit = NULL;
    OSStatus status = AudioComponentInstanceNew(comp, &unit);
    if (status != noErr) return NULL;
    
    return unit;
}

OSStatus AudioUnitDispose(AudioUnit unit)
{
    return AudioComponentInstanceDispose(unit);
}