50 lines
1.2 KiB
C++
50 lines
1.2 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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#ifndef FILTFILT_H
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#define FILTFILT_H
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#include "Filter.h"
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/**
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* Zero-phase digital filter, implemented by processing the data
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* through a filter specified by the given FilterConfig structure (see
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* Filter) and then processing it again in reverse.
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*/
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class FiltFilt
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{
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public:
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FiltFilt( FilterConfig Config );
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virtual ~FiltFilt();
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void reset();
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void process( double* src, double* dst, unsigned int length );
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private:
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void initialise( FilterConfig Config );
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void deInitialise();
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unsigned int m_ord;
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Filter* m_filter;
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double* m_filtScratchIn;
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double* m_filtScratchOut;
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FilterConfig m_filterConfig;
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};
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#endif
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