audiooutput.h

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/*****************************************************************************
 * Copyright 2016-2017 Karolin Stange, Christoph Wick, and Haye Hinrichsen
 *
 * This file is part of JustIntonation.
 *
 * JustIntonation 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.
 *
 * JustIntonation 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 JustIntonation. If not, see http://www.gnu.org/licenses/.
 *****************************************************************************/

//=============================================================================
//                       Interface for audio output
//=============================================================================

#ifndef AUDIOOUTPUT_H
#define AUDIOOUTPUT_H

#include <QObject>
#include <QSettings>

#include "audiobase.h"
#include "audiooutputdevice.h"
#include "audiogenerator.h"


class AudioOutput : public AudioBase
{
public:
    AudioOutput ();
    virtual bool init() override;
    virtual bool start() override;
    virtual bool stop() override;
    virtual bool exit() override;

    virtual void initiallyCalledWorker() override final;
    virtual void finallyCalledWorker() override final;

    void setAudioGenerator (AudioGenerator &generator);
    AudioGenerator* getAudioGenerator() const { return pAudioGenerator; }

    void updateListOfDevices() override final;

    void setVolume (double volume);
    void setActualParameters (const AudioParameters &p);
    void setDefaultBufferSize (int n) { mDefaultBufferSize=n; }

public slots:
    void connectDevice (const bool active) override final;

private:
    AudioOutputDevice mAudioOutputDevice;       
    AudioGenerator defaultGenerator;            
    AudioGenerator* pAudioGenerator;            
    AudioDeviceGuard mAudioDeviceGuard;         
    QSettings mSettings;                        

protected:
    int mDefaultBufferSize;                     
};

#endif // AUDIOOUTPUT_H