annotate FIRFilter.h @ 60:ac1a75151fc9
tip
isnan(int) is meaningless, and msvc refuses it as ambiguous
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Chris Cannam |
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Wed, 18 Dec 2019 16:47:10 +0000 |
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1 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
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2
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3 /*
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4 Vamp Tempogram Plugin
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5 Carl Bussey, Centre for Digital Music, Queen Mary University of London
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6 Copyright 2014 Queen Mary University of London.
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7
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8 This program is free software; you can redistribute it and/or
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9 modify it under the terms of the GNU General Public License as
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10 published by the Free Software Foundation; either version 2 of the
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11 License, or (at your option) any later version. See the file
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12 COPYING included with this distribution for more information.
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13 */
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14
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15 #ifndef __Tempogram__FIRFilter__
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16 #define __Tempogram__FIRFilter__
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17
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18 #include <cmath>
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19 #include <vamp-sdk/FFT.h>
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20 #include <assert.h>
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21 #include <iostream>
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22
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23 class FIRFilter{
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24 public:
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25 enum OutputTypeArgument{
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26 first = 0,
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27 middle,
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28 all
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29 };
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30
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31 FIRFilter(const size_t &lengthInput, const size_t &numberOfCoefficients);
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32 ~FIRFilter();
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33 void process(const float *pInput, const float *pCoefficients, float * pOutput, OutputTypeArgument outputType = first);
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34 private:
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35 size_t m_lengthInput;
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36 size_t m_numberOfCoefficients;
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37 size_t m_lengthFIRFFT;
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38
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39 double *m_pFftInput;
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40 double *m_pFftCoefficients;
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41 double *m_pFftReal1;
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42 double *m_pFftImag1;
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43 double *m_pFftReal2;
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44 double *m_pFftImag2;
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45 double *m_pFftFilteredReal;
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46 double *m_pFftFilteredImag;
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47 double *m_pFftOutputReal;
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48 double *m_pFftOutputImag;
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49
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50 void initialise();
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51 void cleanup();
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52 };
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53
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54 #endif /* defined(__Tempogram__FIRFilter__) */
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