PlayBack-OSS.h

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/***************************************************************************
         PlayBack-OSS.h  -  playback device for standard linux OSS
                             -------------------
    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_OSS_H
#define PLAY_BACK_OSS_H

#include "config.h"
#ifdef HAVE_OSS_SUPPORT

#include <QByteArray>
#include <QList>
#include <QString>

#include "libkwave/PlayBackDevice.h"
#include "libkwave/SampleArray.h"
#include "libkwave/SampleFormat.h"

namespace Kwave
{

    class SampleEncoder;

    class PlayBackOSS: public Kwave::PlayBackDevice
    {
    public:

        PlayBackOSS();

        virtual ~PlayBackOSS() Q_DECL_OVERRIDE;

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

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

        virtual int close() Q_DECL_OVERRIDE;

        virtual QStringList supportedDevices() Q_DECL_OVERRIDE;

        virtual QString fileFilter() Q_DECL_OVERRIDE;

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

        virtual int detectChannels(const QString &device,
                                   unsigned int &min, unsigned int &max)
            Q_DECL_OVERRIDE;

    protected:

        void format2mode(int format, int &compression,
                         int &bits,
                         Kwave::SampleFormat::Format &sample_format) const;

        int openDevice(const QString &device);

        void flush();

        QString m_device_name;

        int m_handle;

        double m_rate;

        unsigned int m_channels;

        unsigned int m_bits;

        unsigned int m_bufbase;

        Kwave::SampleArray m_buffer;

        QByteArray m_raw_buffer;

        unsigned int m_buffer_size;

        unsigned int m_buffer_used;

        Kwave::SampleEncoder *m_encoder;

        int m_oss_version;
    };
}

#endif /* HAVE_OSS_SUPPORT */

#endif /* PLAY_BACK_OSS_H */

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