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/***************************************************************************
Delay.h - delay line for small delays
-------------------
begin : Sun Nov 11 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 DELAY_H
#define DELAY_H
#include "config.h"
#include "libkwave_export.h"
#include <QtGlobal>
#include <QObject>
#include <QVariant>
#include "libkwave/SampleArray.h"
#include "libkwave/SampleFIFO.h"
#include "libkwave/SampleSource.h"
namespace Kwave
{
class LIBKWAVE_EXPORT Delay: public Kwave::SampleSource
{
Q_OBJECT
public:
/** Constructor */
Delay();
/** Destructor */
~Delay() override;
/** does the calculation */
void goOn() override;
signals:
/** emits a block with delayed wave data */
void output(Kwave::SampleArray data);
public slots:
/** receives input data */
void input(Kwave::SampleArray data);
/**
* Sets the delay time, normed to samples.
* The default setting is zero.
*/
void setDelay(const QVariant &d);
private:
/** buffer for delaying data */
Kwave::SampleFIFO m_fifo;
/** buffer for output data */
Kwave::SampleArray m_out_buffer;
/** delay [samples] */
unsigned int m_delay;
};
}
#endif /* DELAY_H */
//***************************************************************************
//***************************************************************************
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