91 lines
2.0 KiB
C++
91 lines
2.0 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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Modifications:
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- delta threshold
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Description: add delta threshold used as offset in the smoothed
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detection function
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Author: Mathieu Barthet
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Date: June 2010
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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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#ifndef CDFPROCESS_H
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#define CDFPROCESS_H
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#include <stdio.h>
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#include "FiltFilt.h"
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struct DFProcConfig{
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unsigned int length;
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unsigned int LPOrd;
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double *LPACoeffs;
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double *LPBCoeffs;
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unsigned int winPre;
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unsigned int winPost;
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double AlphaNormParam;
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bool isMedianPositive;
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float delta; //delta threshold used as an offset when computing the smoothed detection function
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DFProcConfig() :
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length(0),
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LPOrd(0),
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LPACoeffs(NULL),
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LPBCoeffs(NULL),
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winPre(0),
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winPost(0),
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AlphaNormParam(0),
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isMedianPositive(false),
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delta(0)
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{
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}
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};
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class DFProcess
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{
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public:
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DFProcess( DFProcConfig Config );
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virtual ~DFProcess();
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void process( double* src, double* dst );
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private:
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void initialise( DFProcConfig Config );
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void deInitialise();
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void removeDCNormalize( double *src, double*dst );
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void medianFilter( double* src, double* dst );
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int m_length;
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int m_FFOrd;
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int m_winPre;
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int m_winPost;
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double m_alphaNormParam;
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double* filtSrc;
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double* filtDst;
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double* m_filtScratchIn;
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double* m_filtScratchOut;
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FiltFilt* m_FiltFilt;
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bool m_isMedianPositive;
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float m_delta; //add delta threshold
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};
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#endif
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