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annotate dsp/chromagram/Chromagram.h @ 225:49844bc8a895

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* Queen Mary C++ DSP library
author Chris Cannam <c.cannam@qmul.ac.uk>
date Wed, 05 Apr 2006 17:35:59 +0000
parents
children 07ac3de1e53b
rev   line source
c@225 1 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
c@225 2
c@225 3 /*
c@225 4 QM DSP Library
c@225 5
c@225 6 Centre for Digital Music, Queen Mary, University of London.
c@225 7 This file copyright 2005-2006 Christian Landone.
c@225 8 All rights reserved.
c@225 9 */
c@225 10
c@225 11 #ifndef CHROMAGRAM_H
c@225 12 #define CHROMAGRAM_H
c@225 13
c@225 14 #include "dsp/transforms/FFT.h"
c@225 15 #include "ConstantQ.h"
c@225 16
c@225 17 struct ChromaConfig{
c@225 18 unsigned int FS;
c@225 19 double min;
c@225 20 double max;
c@225 21 unsigned int BPO;
c@225 22 double CQThresh;
c@225 23 bool isNormalised;
c@225 24 };
c@225 25
c@225 26 class Chromagram
c@225 27 {
c@225 28
c@225 29 public:
c@225 30 Chromagram( ChromaConfig Config );
c@225 31 ~Chromagram();
c@225 32
c@225 33 double* process( double *data );
c@225 34 void unityNormalise( double* src );
c@225 35
c@225 36 // Complex arithmetic
c@225 37 double kabs( double real, double imag );
c@225 38
c@225 39 // Results
c@225 40 unsigned int getK() { return m_uK;}
c@225 41 unsigned int getFrameSize() { return m_frameSize; }
c@225 42 unsigned int getHopSize() { return m_hopSize; }
c@225 43
c@225 44 private:
c@225 45 int initialise( ChromaConfig Config );
c@225 46 int deInitialise();
c@225 47
c@225 48 double* m_chromadata;
c@225 49 double m_FMin;
c@225 50 double m_FMax;
c@225 51 unsigned int m_BPO;
c@225 52 unsigned int m_uK;
c@225 53
c@225 54 bool isNormalised;
c@225 55
c@225 56 unsigned int m_frameSize;
c@225 57 unsigned int m_hopSize;
c@225 58
c@225 59 FFT* m_FFT;
c@225 60 ConstantQ* m_ConstantQ;
c@225 61
c@225 62 double* m_FFTRe;
c@225 63 double* m_FFTIm;
c@225 64 double* m_CQRe;
c@225 65 double* m_CQIm;
c@225 66
c@225 67 };
c@225 68
c@225 69 #endif