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/***************************************************************************
Normalizer - simple normalizer with limiter
-------------------
begin : Sat May 09 2009
copyright : (C) 2009 by Thomas Eschenbacher
email : Thomas.Eschenbacher@gmx.de
limiter function : (C) 1999-2005 Chris Vaill <chrisvaill at gmail>
taken from "normalize-0.7.7"
***************************************************************************/
/***************************************************************************
* *
* 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 NORMALIZER_H
#define NORMALIZER_H
#include "config.h"
#include <QObject>
#include <QVariant>
#include "libkwave/SampleArray.h"
#include "libkwave/SampleSource.h"
namespace Kwave
{
class Normalizer: public Kwave::SampleSource
{
Q_OBJECT
public:
/** Constructor */
Normalizer();
/** Destructor */
~Normalizer() override;
/** does the calculation */
void goOn() override;
signals:
/** emits a block with the filtered data */
void output(Kwave::SampleArray data);
public slots:
/** receives input data */
void input(Kwave::SampleArray data);
/**
* Sets the gain of the amplifier [0...1]
*/
void setGain(const QVariant g);
/**
* Sets the limiter level [linear, 0...1]
*/
void setLimiterLevel(const QVariant l);
private:
/** buffer for input */
Kwave::SampleArray m_buffer;
/** gain */
double m_gain;
/** limiter level */
double m_limit;
};
}
#endif /* NORMALIZER_H */
//***************************************************************************
//***************************************************************************
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