c@232: /*
c@232:  * Author: c.landone 
c@232:  * Description:
c@232:  *
c@232:  * Syntax: C++
c@232:  *
c@232:  * Copyright (c) 2005 Centre for Digital Music ( C4DM )
c@232:  *                    Queen Mary Univesrity of London
c@232:  *
c@232:  *
c@232:  * This program is not free software; you cannot redistribute it 
c@232:  * without the explicit authorization from the centre for digital music,
c@232:  * queen mary university of london 
c@232:  *
c@232:  */
c@232: 
c@265: #ifndef GETKEYMODE_H
c@232: #define GETKEYMODE_H
c@232: 
c@232: 
c@232: #include "dsp/rateconversion/Decimator.h"
c@232: #include "dsp/chromagram/Chromagram.h"
c@232: 
c@232: 
c@232: class GetKeyMode  
c@232: {
c@232: public:
c@234: 	GetKeyMode( int sampleRate, float tuningFrequency,
c@234: 		    double hpcpAverage, double medianAverage );
c@232: 
c@232: 	virtual ~GetKeyMode();
c@232: 
c@232: 	int process( double* PCMData );
c@232: 
c@232: 	double krumCorr( double* pData1, double* pData2, unsigned int length );
c@232: 
c@232: 	unsigned int getBlockSize() { return m_ChromaFrameSize*m_DecimationFactor; }
c@232: 	unsigned int getHopSize() { return m_ChromaHopSize*m_DecimationFactor; }
c@232: 
c@232: 	double* getChroma() { return m_ChrPointer; }
c@232: 	unsigned int getChromaSize() { return m_BPO; }
c@232: 
c@232: 	double* getMeanHPCP() { return m_MeanHPCP; }
c@232: 
c@265: 	double *getKeyStrengths() { return m_keyStrengths; }
c@265: 
c@232: 	int isModeMinor( int key ); 
c@232: 
c@232: protected:
c@232: 
c@232: 	double m_hpcpAverage;
c@232: 	double m_medianAverage;
c@232: 	unsigned int m_DecimationFactor;
c@232: 
c@232: 	//Decimator (fixed)
c@232: 	Decimator* m_Decimator;
c@232: 
c@232: 	//chroma configuration
c@234: 	ChromaConfig m_ChromaConfig;
c@232: 
c@232: 	//Chromagram object
c@232: 	Chromagram* m_Chroma;
c@232: 
c@232: 	//Chromagram output pointer
c@232: 	double* m_ChrPointer;
c@232: 
c@232: 	//Framesize
c@232: 	unsigned int m_ChromaFrameSize;
c@232: 	//Hop
c@232: 	unsigned int m_ChromaHopSize;
c@232: 	//Bins per octave
c@232: 	unsigned int m_BPO;
c@232: 
c@232: 
c@232: 	unsigned int m_ChromaBuffersize;
c@232: 	unsigned int m_MedianWinsize;
c@232: 	
c@232: 	unsigned int m_bufferindex;
c@232: 	unsigned int m_ChromaBufferFilling;
c@232: 	unsigned int m_MedianBufferFilling;
c@232: 	
c@232: 
c@232: 	double* m_DecimatedBuffer;
c@232: 	double* m_ChromaBuffer;
c@232: 	double* m_MeanHPCP;
c@232: 
c@232: 	double* m_MajCorr;
c@232: 	double* m_MinCorr;
c@232: 	double* m_Keys;
c@232: 	int* m_MedianFilterBuffer;
c@232: 	int* m_SortedBuffer;
c@265: 
c@265: 	double *m_keyStrengths;
c@232: };
c@232: 
c@232: #endif // !defined GETKEYMODE_H