NFCFilter.h

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/*
 * Copyright (C) 2013 David McGriffy, all rights reserved
 */

#ifndef NFC_H__INCLUDED
#define NFC_H__INCLUDED

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

#include "IIRFilter.h"


class CNFCFilter : public CIIRFilter  
{
public:
    CNFCFilter();                       
    CNFCFilter(float dCenterFreq);      
    ~CNFCFilter();                      
    void setSamplingRate(float sr);                 
    void doFilter(float *node, long sampleFrames);  
    void setCenterFreq(float dCenterFreq);          
protected:
    void init();
    void updateCoefficients();
    
    float m_dCenterFreq;
    float m_dBGain;

    double a1;
    double b0, b1;
    double y0, x0, x1;
};

#endif // !defined(AFX_SHELFFILTERI_H__72425CC7_65F2_42D2_BE62_253D0D373277__INCLUDED_)