/home/maxime/Projets/Mixxx/1.10/mixxx/src/engine/enginebufferscalest.h

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/***************************************************************************

                          enginebufferscalest.h  -  description
                             -------------------

        begin                : November 2004
        copyright            : (C) 2004 by Tue Haste Andersen
        email                : haste@diku.dk

 ***************************************************************************/

/***************************************************************************
 *                                                                         *
 *   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 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/

#ifndef ENGINEBUFFERSCALEST_H
#define ENGINEBUFFERSCALEST_H

#include <QMutex>
#include "enginebufferscale.h"
#include "SoundTouch.h"

const int kiSoundTouchReadAheadLength = 1000;
using namespace soundtouch;

class ReadAheadManager;

class EngineBufferScaleST : public EngineBufferScale {
    Q_OBJECT
public:
    EngineBufferScaleST(ReadAheadManager* pReadAheadManager);
    ~EngineBufferScaleST();

    void setPitchIndpTimeStretch(bool b);
    bool getPitchIndpTimeStretch(void);

    CSAMPLE* scale(double playpos, unsigned long buf_size,
                   CSAMPLE* pBase, unsigned long iBaseLength);

    double setTempo(double dTempo);

    void setBaseRate(double dBaseRate);

    void clear();

public slots:
    void slotSetSamplerate(double dSampleRate);
private:
    bool m_bBackwards;

    CSAMPLE *buffer_back;

    SoundTouch *m_pSoundTouch;

    bool m_bPitchIndpTimeStretch;

    bool m_bClear;

    QMutex m_qMutex;

    // The read-ahead manager that we use to fetch samples
    ReadAheadManager* m_pReadAheadManager;
};

#endif