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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 2005-2006 Christian Landone.
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.
*/
// PeakPicking.h: interface for the PeakPicking class.
//
//////////////////////////////////////////////////////////////////////
#ifndef PEAKPICKING_H
#define PEAKPICKING_H
#include "maths/MathUtilities.h"
#include "maths/MathAliases.h"
#include "dsp/signalconditioning/DFProcess.h"
struct PPWinThresh
{
unsigned int pre;
unsigned int post;
};
struct QFitThresh
{
double a;
double b;
double c;
};
struct PPickParams
{
unsigned int length; //Detection FunctionLength
double tau; // time resolution of the detection function:
unsigned int alpha; //alpha-norm parameter
double cutoff;//low-pass Filter cutoff freq
unsigned int LPOrd; // low-pass Filter order
double* LPACoeffs; //low pass Filter den coefficients
double* LPBCoeffs; //low pass Filter num coefficients
PPWinThresh WinT;//window size in frames for adaptive thresholding [pre post]:
QFitThresh QuadThresh;
};
class PeakPicking
{
public:
PeakPicking( PPickParams Config );
virtual ~PeakPicking();
void process( double* src, unsigned int len, vector<int> &onsets );
private:
void initialise( PPickParams Config );
void deInitialise();
int quadEval( vector<double> &src, vector<int> &idx );
DFProcConfig m_DFProcessingParams;
unsigned int m_DFLength ;
double Qfilta ;
double Qfiltb;
double Qfiltc;
double* m_workBuffer;
DFProcess* m_DFSmoothing;
};
#endif
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