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AudioUnitQueueManager.h
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AudioUnitQueueManager.h
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/*
Frodo, Commodore 64 emulator for the iPhone
Copyright (C) 2007-2010 Stuart Carnie
See gpl.txt for license information.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#import <pthread.h>
#import <CoreFoundation/CoreFoundation.h>
#import <AudioUnit/AudioUnit.h>
#import <AudioToolbox/AudioToolbox.h>
const int kNumberBuffers = 4;
enum SoundChannels {
MonoSound = 1,
StereoSound = 2
};
class SIDRenderer;
class CAudioUnitQueueManager {
public:
CAudioUnitQueueManager(SIDRenderer *renderer, float sampleFrequency, SoundChannels channels);
~CAudioUnitQueueManager();
void start();
void stop();
void pause();
void resume();
private:
static OSStatus playbackCallback(void *inRefCon,
AudioUnitRenderActionFlags *ioActionFlags,
const AudioTimeStamp *inTimeStamp,
UInt32 inBusNumber,
UInt32 inNumberFrames,
AudioBufferList *ioData);
private:
AudioStreamBasicDescription _audioFormat;
AudioUnit _audioUnit;
SIDRenderer *_renderer;
};