VirtualAudioFile.h

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/*************************************************************************
     VirtualAudioFile.h  -  adapter between QIODevice and libaudiofile
                             -------------------
    begin                : Mon May 06 2002
    copyright            : (C) 2002 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 VIRTUAL_AUDIO_FILE_H
#define VIRTUAL_AUDIO_FILE_H

#include "config.h"

#include <QtGlobal>
#include <QMap>

extern "C" {
}
#include <af_vfs.h>
#include <audiofile.h>

class QIODevice;

namespace Kwave
{

    class Q_DECL_EXPORT VirtualAudioFile
    {
    public:
        explicit VirtualAudioFile(QIODevice &device);

        virtual ~VirtualAudioFile();

        virtual void open(Kwave::VirtualAudioFile *x, AFfilesetup setup);

        virtual void close();

        inline AFfilehandle &handle() { return m_file_handle; }

        inline AFvirtualfile *file() { return m_virtual_file; }

        inline long int lastError() { return m_last_error; }

        inline QString lastErrorText() { return m_last_error_text; }

        virtual qint64 read(char *data, unsigned int nbytes);

        virtual qint64 length();

        virtual qint64 write(const char *data, unsigned int nbytes);

        virtual void destroy();

        virtual qint64 seek(qint64 offset, bool is_relative);

        virtual qint64 tell();

        static Kwave::VirtualAudioFile *adapter(AFvirtualfile *vfile);

    private:

        QIODevice &m_device;

        AFfilehandle m_file_handle;

        AFvirtualfile *m_virtual_file;

        long int m_last_error;

        QString m_last_error_text;

    };
}

#endif /* VIRTUAL_AUDIO_FILE_H */

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