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/*************************************************************************
OggSubDecoder.h - sub decoder base class for audio in an Ogg container
-------------------
begin : Wed Dec 26 2012
copyright : (C) 2012 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_DECODER_H
#define OGG_SUB_DECODER_H
#include "config.h"
class QWidget;
namespace Kwave
{
class FileInfo;
class MultiWriter;
class OggSubDecoder
{
public:
/** Destructor */
virtual ~OggSubDecoder() {}
/**
* 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
* @return -1 if failed or +1 if succeeded
*/
virtual int open(QWidget *widget, Kwave::FileInfo &info) = 0;
/**
* decode received ogg data
* @param dst a MultiWriter to be used as sink
* @return -1 if failed or >= 0 if succeeded
*/
virtual int decode(Kwave::MultiWriter &dst) = 0;
/** reset the stream info */
virtual void reset() = 0;
/**
* finish the decoding, last chance to fix up some file info
* @param info reference to a FileInfo to fill
*/
virtual void close(Kwave::FileInfo &info) = 0;
};
}
#endif /* OGG_SUB_DECODER_H */
//***************************************************************************
//***************************************************************************
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