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/***************************************************************************
readerextractwave.h - description
-------------------
begin : Thu Feb 6 2003
copyright : (C) 2003 by Tue & Ken Haste Andersen
email : haste@diku.dk
***************************************************************************/
/***************************************************************************
* *
* 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 READEREXTRACTWAVE_H
#define READEREXTRACTWAVE_H
#include "readerextract.h"
#include "defs.h"
#include "monitor.h"
#include "soundsource.h"
#include <qevent.h>
class SignalVertexBuffer;
class ReaderExtractHFC;
class ReaderExtractBeat;
class Reader;
#define EXTRACT
/**
* This is the main ReaderExtract class, taking care of buffering the incoming wave data from
* the SoundSource objects, and subsequently calls other ReaderExtract objects.
*
*@author Tue Haste Andersen
*/
class ReaderExtractWave : ReaderExtract {
public:
ReaderExtractWave(Reader *pReader, EngineBuffer *pEngineBuffer);
~ReaderExtractWave();
void newSource(TrackInfoObject *);
void reset();
void addVisual(VisualChannel *pVisualChannel);
void *getBasePtr();
int getRate();
int getLength();
int getChannels();
int getBufferSize();
ReaderExtractBeat *getExtractBeat();
void *processChunk(const int, const int, const int, bool);
/** Read a new chunk into the readbuffer: */
void getchunk(CSAMPLE rate);
/** Seek to a new play position. Returns positon actually seeked to */
long int seek(long int new_playpos);
/** The first read sample in the file, currently in read_buffer. This should only be
* accessed while holding the enginelock from the reader class. */
long signed int filepos_start;
/** The last read sample in the file, currently in read_buffer. This should only be
* accessed while holding the enginelock from the reader class. */
long signed int filepos_end;
/** The current play position in the file. This should only be
* updated while holding the enginelock from the reader class. */
long signed int filepos_play;
private:
/** Pointer to Reader class */
Reader *m_pReader;
/** Temporary buffer for the raw samples */
SAMPLE *temp;
/** Buffer start and end position */
int bufferpos_start, bufferpos_end;
/** Pointer to the sound source */
SoundSource *file;
int stepSize;
int windowPerChunk;
int windowNo;
/** The buffer where the samples are read into */
CSAMPLE *read_buffer;
/** Pointer to FFT extractor */
ReaderExtractHFC *readerhfc;
ReaderExtractBeat *readerbeat;
};
#endif
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