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/*
*
* $Id: k3baudiofile.h 619556 2007-01-03 17:38:12Z trueg $
* Copyright (C) 2004 Sebastian Trueg <trueg@k3b.org>
*
* This file is part of the K3b project.
* Copyright (C) 1998-2007 Sebastian Trueg <trueg@k3b.org>
*
* 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.
* See the file "COPYING" for the exact licensing terms.
*/
#ifndef _K3B_AUDIO_FILE_H_
#define _K3B_AUDIO_FILE_H_
#include "k3baudiodatasource.h"
#include <k3bmsf.h>
#include <kurl.h>
#include "k3b_export.h"
class K3bAudioDecoder;
class K3bAudioTrack;
/**
* The K3bAudioFile is the most important audio data source. It gets its data
* from an audio file and uses a K3bAudioDecoder to decode this data.
*
* Be aware that it is currently not possible to change the doc of an AudioFile.
* The reason for this is the decoder sharing which is in place to allow gapless
* splitting of audio files into several tracks.
*
* \see K3bAudioDoc::createDecoderForUrl
*/
class LIBK3B_EXPORT K3bAudioFile : public K3bAudioDataSource
{
public:
/**
* The AudioFile registers itself with the doc. This is part of the
* decoder handling facility in K3bAudioDoc which reuses the same decoder
* for sources with the same url.
*
* Use K3bAudioDoc::getDecoderForUrl to create a decoder.
*/
K3bAudioFile( K3bAudioDecoder*, K3bAudioDoc* );
K3bAudioFile( const K3bAudioFile& );
/**
* The AudioFile deregisters itself from the doc. If it was the last file
* to use the decoder the doc will take care of deleting it.
*/
~K3bAudioFile();
const TQString& filename() const;
/**
* The complete length of the file used by this source.
*/
K3b::Msf originalLength() const;
TQString type() const;
TQString sourceComment() const;
bool isValid() const;
K3bAudioDecoder* decoder() const { return m_decoder; }
bool seek( const K3b::Msf& );
int read( char* data, unsigned int max );
K3bAudioDataSource* copy() const;
private:
K3bAudioDoc* m_doc;
K3bAudioDecoder* m_decoder;
unsigned long long m_decodedData;
};
#endif
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