/*************************************************************************
    OggSubEncoder.h  -  sub encoder base class for audio in an Ogg container
                             -------------------
    begin                : Thu Jan 03 2013
    copyright            : (C) 2013 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 OGG_SUB_ENCODER_H
#define OGG_SUB_ENCODER_H

#include "config.h"

class QIODevice;
class QWidget;

namespace Kwave
{
    class FileInfo;
    class MultiWriter;

    class OggSubEncoder
    {
    public:
        /** Destructor */
        virtual ~OggSubEncoder() {}

        /**
         * parse the header of the stream and initialize the decoder
         * @param widget a QWidget to be used as parent for error messages
         * @param info reference to a FileInfo to fill
         * @param src MultiTrackReader used as source of the audio data
         * @return true if succeeded, false if failed
         */
        virtual bool open(QWidget *widget, const Kwave::FileInfo &info,
                          Kwave::MultiTrackReader &src) = 0;

        /**
         * write the header information
         * @param dst a QIODevice that receives the raw data
         * @return true if succeeded, false if failed
         */
        virtual bool writeHeader(QIODevice &dst) = 0;

        /**
         * encode received ogg data
         * @param src MultiTrackReader used as source of the audio data
         * @param dst a QIODevice that receives the raw data
         * @return true if succeeded, false if failed
         */
        virtual bool encode(Kwave::MultiTrackReader &src,
                            QIODevice &dst) = 0;

        /**
         * finish the decoding, last chance to fix up some file info
         */
        virtual void close() = 0;

    };
}

#endif /* OGG_SUB_ENCODER_H */

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