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/*
Copyright (c) 2005 Centre for Digital Music ( C4DM )
Queen Mary Univesrity of London
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 included with this distribution for more information.
*/
#ifndef GETKEYMODE_H
#define GETKEYMODE_H
#include "dsp/rateconversion/Decimator.h"
#include "dsp/chromagram/Chromagram.h"
class GetKeyMode
{
public:
GetKeyMode( int sampleRate, float tuningFrequency,
double hpcpAverage, double medianAverage );
virtual ~GetKeyMode();
int process( double* PCMData );
double krumCorr( double* pData1, double* pData2, unsigned int length );
unsigned int getBlockSize() { return m_ChromaFrameSize*m_DecimationFactor; }
unsigned int getHopSize() { return m_ChromaHopSize*m_DecimationFactor; }
double* getChroma() { return m_ChrPointer; }
unsigned int getChromaSize() { return m_BPO; }
double* getMeanHPCP() { return m_MeanHPCP; }
double *getKeyStrengths() { return m_keyStrengths; }
bool isModeMinor( int key );
protected:
double m_hpcpAverage;
double m_medianAverage;
unsigned int m_DecimationFactor;
//Decimator (fixed)
Decimator* m_Decimator;
//chroma configuration
ChromaConfig m_ChromaConfig;
//Chromagram object
Chromagram* m_Chroma;
//Chromagram output pointer
double* m_ChrPointer;
//Framesize
unsigned int m_ChromaFrameSize;
//Hop
unsigned int m_ChromaHopSize;
//Bins per octave
unsigned int m_BPO;
unsigned int m_ChromaBuffersize;
unsigned int m_MedianWinsize;
unsigned int m_bufferindex;
unsigned int m_ChromaBufferFilling;
unsigned int m_MedianBufferFilling;
double* m_DecimatedBuffer;
double* m_ChromaBuffer;
double* m_MeanHPCP;
double* m_MajCorr;
double* m_MinCorr;
double* m_Keys;
int* m_MedianFilterBuffer;
int* m_SortedBuffer;
double *m_keyStrengths;
};
#endif // !defined GETKEYMODE_H
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