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/***************************************************************************
CurveStreamAdapter.h - converter from Curve to a Kwave::SampleSource
-------------------
begin : Thu Nov 01 2007
copyright : (C) 2007 by Thomas Eschenbacher
email : Thomas.Eschenbacher@gmx.de
***************************************************************************/
/***************************************************************************
* *
* 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 CURVE_STREAM_ADAPTER_H
#define CURVE_STREAM_ADAPTER_H
#include "config.h"
#include "libkwave_export.h"
#include <QtGlobal>
#include "libkwave/Curve.h"
#include "libkwave/SampleSource.h"
namespace Kwave
{
class LIBKWAVE_EXPORT CurveStreamAdapter: public Kwave::SampleSource
{
Q_OBJECT
public:
/**
* Constructor.
* @param curve the curve from which we take the interpolation
* @param length number of samples of the interpolated range
*/
CurveStreamAdapter(Kwave::Curve &curve, sample_index_t length);
/** Destructor */
~CurveStreamAdapter() override;
/** @see Kwave::KwaveSampleSource */
void goOn() override;
signals:
/** emits a block with the interpolated curve */
void output(Kwave::SampleArray data);
private:
/** position within the interpolation */
sample_index_t m_position;
/** number of samples of the interpolated area */
sample_index_t m_length;
/** the interpolation */
Kwave::Interpolation &m_interpolation;
/** array with the interpolated curve data */
Kwave::SampleArray m_buffer;
};
}
#endif /* CURVE_STREAM_ADAPTER_H */
//***************************************************************************
//***************************************************************************
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