c@0: //
c@0: //  FIRFilter.h
c@0: //  Tempogram
c@0: //
c@0: //  Created by Carl Bussey on 25/06/2014.
c@0: //  Copyright (c) 2014 Carl Bussey. All rights reserved.
c@0: //
c@0: 
c@0: #ifndef __Tempogram__FIRFilter__
c@0: #define __Tempogram__FIRFilter__
c@0: 
c@0: class FIRFilter{
c@0: public:
c@0:     FIRFilter(const unsigned int lengthInput, const unsigned int numberOfCoefficients);
c@0:     ~FIRFilter();
c@0:     void process(const float *input, const float *coefficients, float *output);
c@0: private:
c@0:     unsigned int _lengthInput;
c@0:     unsigned int _numberOfCoefficients;
c@0:     unsigned int _lengthFIRFFT;
c@0:     
c@0:     double *fftInput;
c@0:     double *fftCoefficients;
c@0:     double *fftReal1;
c@0:     double *fftImag1;
c@0:     double *fftReal2;
c@0:     double *fftImag2;
c@0:     double *fftFilteredReal;
c@0:     double *fftFilteredImag;
c@0:     double *fftOutputReal;
c@0:     double *fftOutputImag;
c@0:     
c@0:     void initialise();
c@0:     void cleanup();
c@0: };
c@0: 
c@0: #endif /* defined(__Tempogram__FIRFilter__) */