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@7: #include <cmath>
c@7: #include <vamp-sdk/FFT.h>
c@7: #include <assert.h>
c@15: #include <iostream>
c@7: 
c@0: class FIRFilter{
c@0: public:
c@15:     enum OutputTypeArgument{
c@15:         first = 0,
c@15:         middle,
c@15:         all
c@15:     };
c@15:     
c@13:     FIRFilter(const size_t &lengthInput, const size_t &numberOfCoefficients);
c@0:     ~FIRFilter();
c@15:     void process(const float *pInput, const float *pCoefficients, float * pOutput, OutputTypeArgument outputType = first);
c@0: private:
c@13:     size_t m_lengthInput;
c@13:     size_t m_numberOfCoefficients;
c@20:     size_t m_lengthFIRFFT;
c@0:     
c@13:     double *m_pFftInput;
c@13:     double *m_pFftCoefficients;
c@13:     double *m_pFftReal1;
c@13:     double *m_pFftImag1;
c@13:     double *m_pFftReal2;
c@13:     double *m_pFftImag2;
c@13:     double *m_pFftFilteredReal;
c@13:     double *m_pFftFilteredImag;
c@13:     double *m_pFftOutputReal;
c@13:     double *m_pFftOutputImag;
c@0:     
c@0:     void initialise();
c@0:     void cleanup();
c@0: };
c@0: 
c@0: #endif /* defined(__Tempogram__FIRFilter__) */