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qwavvorbiswavedata.h

/***************************************************************************
                     libvorbisfilewavedata.h  -  description
                             -------------------
    begin                : Wed Dec 18 2002
    copyright            : (C) 2002 by Peter Eschler
    email                : eschler@users.sourceforge.net
 ***************************************************************************/

/***************************************************************************
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU Library General Public License as       *
 *   published by  the Free Software Foundation; either version 2 of the   *
 *   License, or (at your option) any later version.                       *
 *                                                                         *
 ***************************************************************************/

#ifndef QwavLIBVORBISFILEWAVEDATA_H
#define QwavLIBVORBISFILEWAVEDATA_H


//---------------------------------------------------------------------------
// Includes: project
//---------------------------------------------------------------------------

#include "qwavdefines.h"
#include "qwavwavedatainterface.h"

Qwav_BEGIN_NAMESPACE

//---------------------------------------------------------------------------
// Class: QwavLibVorbisWaveData
//---------------------------------------------------------------------------

class QWAV_EXPORTIMPORT QwavVorbisWaveData : public QwavWaveDataInterface  
{

public: 
    QwavVorbisWaveData();
    QwavVorbisWaveData(const string& filename)
        throw(FileOpenError, FileReadError); 

    virtual ~QwavVorbisWaveData();

    inline float       sampleRate  (void) const;
    inline long        nrOfSamples (void) const;
    inline uint        nrOfChannels(void) const;
    inline const Float& operator[] (uint index) const;
//    inline QwavPeakVector& getPeaks       (void);

    bool   readFile (const string& filename ) 
      throw(FileOpenError, FileReadError);

    bool   writeFile(const string& filename)
      throw(FileOpenError,FileReadError);      
    
    QwavPeakInfo           getPeak(QwavPeakInterpolator* s,
                               int   pixel,
                               int   nPixels,
                               Float zoomFac=1.0,
                               uint  channel=1) const;

    inline bool isOpen() const;

protected:
    QwavVorbisWaveData(const QwavVorbisWaveData&);

    const QwavVorbisWaveData& operator=(const QwavVorbisWaveData&); 

private:
    float      _sampleRate;
    int        _nrSamples;
    int        _nrChannels;  

    bool       _isOpen;

    Float*     _data;
    QwavPeakVector _peaks;
};


//---------------------------------------------------------------------------
// Method: getSampleRate
//---------------------------------------------------------------------------

float QwavVorbisWaveData::sampleRate() const
{
    return _sampleRate;
}


//---------------------------------------------------------------------------
// Method: getNrOfSamples
//---------------------------------------------------------------------------

long QwavVorbisWaveData::nrOfSamples() const
{
    return _nrSamples;
}


//---------------------------------------------------------------------------
// Method: getNrOfChannels
//---------------------------------------------------------------------------

uint  QwavVorbisWaveData::nrOfChannels() const
{
    return _nrChannels;
}

//---------------------------------------------------------------------------
// Method: operator[]
//---------------------------------------------------------------------------

const Float& QwavVorbisWaveData::operator[] (uint index) const
{    
    return _data[index];
}


//---------------------------------------------------------------------------
// Method: isOpen
//---------------------------------------------------------------------------

bool QwavVorbisWaveData::isOpen() const
{
    return _isOpen;
}

Qwav_END_NAMESPACE

#endif // QwavLIBVORBISFILEWAVEDATA_H

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