PlayBackDevice.h

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/***************************************************************************
       PlayBackDevice.h  -  abstract base class for playback devices
                             -------------------
    begin                : Sat May 19 2001
    copyright            : (C) 2001 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 PLAY_BACK_DEVICE_H
#define PLAY_BACK_DEVICE_H

#include "config.h"

#include <QList>
#include <QString>
#include <QStringList>

#include "libkwave/Sample.h"
#include "libkwave/String.h"

namespace Kwave
{
    class SampleArray;

    class PlayBackDevice
    {
    public:

        virtual ~PlayBackDevice() {}

        virtual QString open(const QString &device, double rate,
                             unsigned int channels, unsigned int bits,
                             unsigned int bufbase) = 0;

        virtual int write(const Kwave::SampleArray &samples) = 0;

        virtual int close() = 0;

        virtual QStringList supportedDevices() {
            return QStringList();
        }

        virtual QString fileFilter() { return _(""); }

        virtual QList<unsigned int> supportedBits(const QString &device) = 0;

        virtual int detectChannels(const QString &device,
                                   unsigned int &min, unsigned int &max)
        {
            (void)device;
            return min = max = 0;
        }

    };
}

#endif /* PLAY_BACK_DEVICE_H */

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