CoreAudioAudioPlayer.h

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#pragma once
 
#ifdef __APPLE__
 
#include "AudioPlayer.h"
#include <AudioToolbox/AudioToolbox.h>
#include <pthread.h>
 
namespace Ship {
class CoreAudioAudioPlayer : public AudioPlayer {
  public:
    CoreAudioAudioPlayer(AudioSettings settings);
    ~CoreAudioAudioPlayer();
 
    int Buffered() override;
 
  protected:
    bool DoInit() override;
 
    void DoClose() override;
 
    void DoPlay(const uint8_t* buf, size_t len) override;
 
  private:
    static OSStatus CoreAudioRenderCallback(void* inRefCon, AudioUnitRenderActionFlags* ioActionFlags,
                                            const AudioTimeStamp* inTimeStamp, UInt32 inBusNumber,
                                            UInt32 inNumberFrames, AudioBufferList* ioData);
 
    AudioUnit mAudioUnit;
    int32_t mNumChannels;
    uint8_t* mRingBuffer;       
    size_t mRingBufferSize;     
    size_t mRingBufferReadPos;  
    size_t mRingBufferWritePos; 
    pthread_mutex_t mMutex;     
    bool mInitialized;
};
} // namespace Ship
#endif