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/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
/*
QM DSP Library
Centre for Digital Music, Queen Mary, University of London.
This file copyright 2006 Martin Gasser.
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 _CHANGEDETECTIONFUNCTION_
#define _CHANGEDETECTIONFUNCTION_
//#define DEBUG_CHANGE_DETECTION_FUNCTION 1
#include "TCSgram.h"
#include <valarray>
using std::valarray;
typedef valarray<double> ChangeDistance;
struct ChangeDFConfig
{
int smoothingWidth;
};
class ChangeDetectionFunction
{
public:
ChangeDetectionFunction(ChangeDFConfig);
~ChangeDetectionFunction();
ChangeDistance process(const TCSGram& rTCSGram);
private:
void setFilterWidth(const int iWidth);
private:
valarray<double> m_vaGaussian;
double m_dFilterSigma;
int m_iFilterWidth;
};
#endif // _CHANGDETECTIONFUNCTION_
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