view dsp/keydetection/GetKeyMode.h @ 484:d48276a3ae24

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/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
/*
    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( const double *pDataNorm, const double *pProfileNorm, 
                     int shiftProfile, 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();

    double* getMeanHPCP() { return m_MeanHPCP; }

    double* getKeyStrengths();

    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;


    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_MajProfileNorm;
    double* m_MinProfileNorm;
    double* m_MajCorr;
    double* m_MinCorr;
    int* m_MedianFilterBuffer;
    int* m_SortedBuffer;

    double *m_keyStrengths;
};

#endif // !defined GETKEYMODE_H