annotate dsp/rateconversion/Decimator.h @ 0:d7116e3183f8
* Queen Mary C++ DSP library
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cannam |
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Wed, 05 Apr 2006 17:35:59 +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 QM DSP Library
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4
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5 Centre for Digital Music, Queen Mary, University of London.
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6 This file copyright 2005-2006 Christian Landone.
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7 All rights reserved.
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8 */
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9
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10 #ifndef DECIMATOR_H
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11 #define DECIMATOR_H
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12
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13 class Decimator
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14 {
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15 public:
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16 void process( double* src, double* dst );
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17 void doAntiAlias( double* src, double* dst, unsigned int length );
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18
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19 Decimator( unsigned int inLength, unsigned int decFactor );
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20 virtual ~Decimator();
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21
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22 private:
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23 void resetFilter();
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24 void deInitialise();
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25 void initialise( unsigned int inLength, unsigned int decFactor );
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26
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27 unsigned int m_inputLength;
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28 unsigned int m_outputLength;
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29 unsigned int m_decFactor;
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30
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31 double Input;
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32 double Output ;
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33
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34 double o1,o2,o3,o4,o5,o6,o7;
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35
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36 double a[ 9 ];
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37 double b[ 9 ];
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38
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39 double* decBuffer;
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40 };
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41
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42 #endif //
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