cannam@0: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
cannam@0: 
cannam@0: /*
cannam@0:     QM DSP Library
cannam@0: 
cannam@0:     Centre for Digital Music, Queen Mary, University of London.
Chris@84:     This file 2005-2006 Christian Landone.
Chris@84: 
mathieu@96:     Modifications:
mathieu@96: 
mathieu@96:     - delta threshold
mathieu@96:     Description: add delta threshold used as offset in the smoothed
mathieu@96:     detection function
mathieu@96:     Author: Mathieu Barthet
mathieu@96:     Date: June 2010
mathieu@96: 
Chris@84:     This program is free software; you can redistribute it and/or
Chris@84:     modify it under the terms of the GNU General Public License as
Chris@84:     published by the Free Software Foundation; either version 2 of the
Chris@84:     License, or (at your option) any later version.  See the file
Chris@84:     COPYING included with this distribution for more information.
cannam@0: */
cannam@0: 
cannam@0: #ifndef CDFPROCESS_H
cannam@0: #define CDFPROCESS_H
cannam@0: 
cannam@0: #include <stdio.h>
cannam@0: #include "FiltFilt.h"
cannam@0: 
cannam@0: struct DFProcConfig{
cannam@0:     unsigned int length; 
cannam@0:     unsigned int LPOrd; 
cannam@0:     double *LPACoeffs; 
cannam@0:     double *LPBCoeffs; 
cannam@0:     unsigned int winPre;
cannam@0:     unsigned int winPost; 
cannam@0:     double AlphaNormParam;
cannam@12:     bool isMedianPositive;
Chris@185:     float delta; //delta threshold used as an offset when computing the smoothed detection function
Chris@185: 
Chris@185:     DFProcConfig() :
Chris@185:         length(0),
Chris@185:         LPOrd(0),
Chris@185:         LPACoeffs(NULL),
Chris@185:         LPBCoeffs(NULL),
Chris@185:         winPre(0),
Chris@185:         winPost(0),
Chris@185:         AlphaNormParam(0),
Chris@185:         isMedianPositive(false),
Chris@185:         delta(0)
Chris@185:     {
Chris@185:     }
cannam@12: };
cannam@0: 
cannam@0: class DFProcess  
cannam@0: {
cannam@0: public:
cannam@0:     DFProcess( DFProcConfig Config );
cannam@0:     virtual ~DFProcess();
cannam@0: 
cannam@0:     void process( double* src, double* dst );
cannam@0: 
cannam@0: 	
cannam@0: private:
cannam@0:     void initialise( DFProcConfig Config );
cannam@0:     void deInitialise();
cannam@0:     void removeDCNormalize( double *src, double*dst );
cannam@0:     void medianFilter( double* src, double* dst );
cannam@0: 
cannam@74:     int m_length;
cannam@74:     int m_FFOrd;
cannam@0: 
cannam@74:     int m_winPre;
cannam@74:     int m_winPost;
cannam@0: 
cannam@0:     double m_alphaNormParam;
cannam@0: 
cannam@0:     double* filtSrc;
cannam@0:     double* filtDst;
cannam@0: 
cannam@0:     double* m_filtScratchIn;
cannam@0:     double* m_filtScratchOut;
cannam@0: 
Chris@153:     FilterConfig m_FilterConfigParams;
cannam@0: 
cannam@0:     FiltFilt* m_FiltFilt;
cannam@0: 
cannam@0:     bool m_isMedianPositive;
Chris@185:     float m_delta; //add delta threshold
cannam@0: };
cannam@0: 
cannam@0: #endif