FilterCoefficients.h

Go to the documentation of this file.

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

#ifndef FILTERCOEFFICIENTS_H
#define FILTERCOEFFICIENTS_H

#include <map>

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

#pragma warning(disable:4786)

#define MAXCOEFCHAN 4

class CFilterCoefficients  
{
public:
    CFilterCoefficients();              
    virtual ~CFilterCoefficients();     
    void setCoefficientFileName(const char *sfileName);                 
    int getFilterSize(int chan, float sampleRate);                      
    void setFilterSize(int chan, float sampleRate, int newFilterSize);  
    void* getCoefficients(int chan, float sampleRate);                  
    void setCoefficients(int chan, float sampleRate, float* coefs);     
    // old two channel methods
    int getFilterSizeA(float sampleRate);                               
    int getFilterSizeB(float sampleRate);                               
    void setFilterSizeA(float sampleRate, int newFilterSize);           
    void setFilterSizeB(float sampleRate, int newFilterSize);           
    void* getCoefficientsA(float sampleRate);                           
    void* getCoefficientsB(float sampleRate);                           
    void setCoefficientsA(float sampleRate, float *coefs);              
    void setCoefficientsB(float sampleRate, float *coefs);              
protected:
    void freeAll();

    // list of filter buffers for given sample rate
    std::map<float, void*> m_mapCoefListA;
    std::map<float, void*> m_mapCoefListB;
    std::map<float, int> m_mapCoefSizesA;
    std::map<float, int> m_mapCoefSizesB;

    std::map<float, void*> m_mapCoefList[MAXCOEFCHAN];
    std::map<float, int> m_mapCoefSizes[MAXCOEFCHAN];

    char errorMsg[1024];
    int errorCode;
};

#endif // !defined(AFX_FILTERCOEFFICIENTS_H__C87E300F_2B7F_4BEF_B6F1_24826F5C4674__INCLUDED_)