cannam@0: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
cannam@0: 
cannam@0: /*
cannam@0:     QM DSP Library
cannam@0: 
cannam@0:     Centre for Digital Music, Queen Mary, University of London.
Chris@84:     This file 2005-2006 Christian Landone.
Chris@84: 
Chris@84:     This program is free software; you can redistribute it and/or
Chris@84:     modify it under the terms of the GNU General Public License as
Chris@84:     published by the Free Software Foundation; either version 2 of the
Chris@84:     License, or (at your option) any later version.  See the file
Chris@84:     COPYING included with this distribution for more information.
cannam@0: */
cannam@0: 
cannam@0: #ifndef PHASEVOCODER_H
cannam@0: #define PHASEVOCODER_H
cannam@0: 
cannam@64: class FFTReal;
cannam@0: 
cannam@0: class PhaseVocoder  
cannam@0: {
cannam@0: public:
cannam@64:     PhaseVocoder( unsigned int size );
cannam@0:     virtual ~PhaseVocoder();
cannam@0: 
cannam@64:     void process( double* src, double* mag, double* theta);
cannam@0: 
cannam@0: protected:
cannam@0:     void getPhase(unsigned int size, double *theta, double *real, double *imag);
cannam@64: //    void coreFFT( unsigned int NumSamples, double *RealIn, double* ImagIn, double *RealOut, double *ImagOut);
cannam@0:     void getMagnitude( unsigned int size, double* mag, double* real, double* imag);
cannam@55:     void FFTShift( unsigned int size, double* src);
cannam@0: 
cannam@64:     unsigned int m_n;
cannam@64:     FFTReal *m_fft;
cannam@64:     double *m_imagOut;
cannam@64:     double *m_realOut;
cannam@0: 
cannam@0: };
cannam@0: 
cannam@0: #endif