Mercurial > hg > vamp-tempogram
view FIRFilter.h @ 45:e6a43500629b
I think that the tempogram max lag can't exceed the window length - 1, rather than the window length, because it is used as an index into a vector of the window length
author | Chris Cannam |
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date | Thu, 25 Sep 2014 18:42:35 +0100 |
parents | 4cf2d163127b |
children |
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/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */ /* Vamp Tempogram Plugin Carl Bussey, Centre for Digital Music, Queen Mary University of London Copyright 2014 Queen Mary University of London. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. See the file COPYING included with this distribution for more information. */ #ifndef __Tempogram__FIRFilter__ #define __Tempogram__FIRFilter__ #include <cmath> #include <vamp-sdk/FFT.h> #include <assert.h> #include <iostream> class FIRFilter{ public: enum OutputTypeArgument{ first = 0, middle, all }; FIRFilter(const size_t &lengthInput, const size_t &numberOfCoefficients); ~FIRFilter(); void process(const float *pInput, const float *pCoefficients, float * pOutput, OutputTypeArgument outputType = first); private: size_t m_lengthInput; size_t m_numberOfCoefficients; size_t m_lengthFIRFFT; double *m_pFftInput; double *m_pFftCoefficients; double *m_pFftReal1; double *m_pFftImag1; double *m_pFftReal2; double *m_pFftImag2; double *m_pFftFilteredReal; double *m_pFftFilteredImag; double *m_pFftOutputReal; double *m_pFftOutputImag; void initialise(); void cleanup(); }; #endif /* defined(__Tempogram__FIRFilter__) */