82 lines
1.9 KiB
C++
82 lines
1.9 KiB
C++
/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
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/*
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QM DSP Library
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Centre for Digital Music, Queen Mary, University of London.
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This file 2005-2006 Christian Landone.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version. See the file
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COPYING included with this distribution for more information.
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*/
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// PeakPicking.h: interface for the PeakPicking class.
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//
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//////////////////////////////////////////////////////////////////////
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#ifndef PEAKPICKING_H
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#define PEAKPICKING_H
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#include "maths/MathUtilities.h"
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#include "maths/MathAliases.h"
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#include "dsp/signalconditioning/DFProcess.h"
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struct PPWinThresh
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{
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unsigned int pre;
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unsigned int post;
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};
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struct QFitThresh
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{
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double a;
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double b;
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double c;
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};
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struct PPickParams
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{
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unsigned int length; //Detection FunctionLength
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double tau; // time resolution of the detection function:
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unsigned int alpha; //alpha-norm parameter
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double cutoff;//low-pass Filter cutoff freq
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unsigned int LPOrd; // low-pass Filter order
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double* LPACoeffs; //low pass Filter den coefficients
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double* LPBCoeffs; //low pass Filter num coefficients
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PPWinThresh WinT;//window size in frames for adaptive thresholding [pre post]:
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QFitThresh QuadThresh;
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};
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class PeakPicking
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{
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public:
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PeakPicking( PPickParams Config );
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virtual ~PeakPicking();
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void process( double* src, unsigned int len, vector<int> &onsets );
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private:
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void initialise( PPickParams Config );
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void deInitialise();
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int quadEval( vector<double> &src, vector<int> &idx );
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DFProcConfig m_DFProcessingParams;
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unsigned int m_DFLength ;
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double Qfilta ;
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double Qfiltb;
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double Qfiltc;
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double* m_workBuffer;
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DFProcess* m_DFSmoothing;
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};
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#endif
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