Chris@43: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
Chris@43: 
Chris@43: /*
Chris@43:    Vamp Tempogram Plugin
Chris@43:    Carl Bussey, Centre for Digital Music, Queen Mary University of London
Chris@43:    Copyright 2014 Queen Mary University of London.
Chris@43:     
Chris@43:    This program is free software; you can redistribute it and/or
Chris@43:    modify it under the terms of the GNU General Public License as
Chris@43:    published by the Free Software Foundation; either version 2 of the
Chris@43:    License, or (at your option) any later version.  See the file
Chris@43:    COPYING included with this distribution for more information.
Chris@43: */
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__) */