Filter.h

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/***************************************************************************
               Filter.h  -  parameters of a digital IIR or FIR filter
                             -------------------
    begin                : Jan 21 2001
    copyright            : (C) 2001 by Thomas Eschenbacher
    email                : Thomas Eschenbacher <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 FILTER_H
#define FILTER_H

#include "config.h"
#include <QVector>

class QString;

namespace Kwave
{

    class Filter
    {
    public:
        explicit Filter(int rate);

        explicit Filter(const QString &command);

        virtual ~Filter();

        QString command();

        unsigned int resize(unsigned int newnum);

        inline bool isFIR() const { return m_fir; }

        inline int rate() const { return m_rate; }

        unsigned int count();

        double coeff(unsigned int index);

        void setCoeff(unsigned int index, double newval);

        unsigned int delay(unsigned int index);

        void setDelay(unsigned int index, unsigned int newval);

        void load(const QString &filename);

        void save(const QString &filename);

    private:

        bool m_fir;

        unsigned int m_rate;

        QVector<double> m_coeff;

        QVector<int> m_delay;

    };

}

#endif /* FILTER_H */

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