c@116: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
c@116: /*
c@116:     Constant-Q library
c@116:     Copyright (c) 2013-2014 Queen Mary, University of London
c@116: 
c@116:     Permission is hereby granted, free of charge, to any person
c@116:     obtaining a copy of this software and associated documentation
c@116:     files (the "Software"), to deal in the Software without
c@116:     restriction, including without limitation the rights to use, copy,
c@116:     modify, merge, publish, distribute, sublicense, and/or sell copies
c@116:     of the Software, and to permit persons to whom the Software is
c@116:     furnished to do so, subject to the following conditions:
c@116: 
c@116:     The above copyright notice and this permission notice shall be
c@116:     included in all copies or substantial portions of the Software.
c@116: 
c@116:     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
c@116:     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
c@116:     MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
c@116:     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
c@116:     CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
c@116:     CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
c@116:     WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
c@116: 
c@116:     Except as contained in this notice, the names of the Centre for
c@116:     Digital Music; Queen Mary, University of London; and Chris Cannam
c@116:     shall not be used in advertising or otherwise to promote the sale,
c@116:     use or other dealings in this Software without prior written
c@116:     authorization.
c@116: */
c@116: 
c@116: #ifndef CQ_KERNEL_H
c@116: #define CQ_KERNEL_H
c@116: 
c@127: #include "CQParameters.h"
c@127: 
c@116: #include <vector>
c@116: #include <complex>
c@116: 
c@116: class FFT;
c@116: 
c@116: class CQKernel
c@116: {
c@116: public:
c@127:     CQKernel(CQParameters params);
c@116:     ~CQKernel();
c@147: 
c@147:     bool isValid() const { return m_valid; }
c@116:     
c@116:     struct Properties {
c@116:         double sampleRate;
c@116:         double maxFrequency;
c@116:         double minFrequency;
c@116:         int binsPerOctave;
c@116:         int fftSize;
c@116:         int fftHop;
c@116:         int atomsPerFrame;
c@116:         int atomSpacing;
c@116:         int firstCentre;
c@116:         int lastCentre;
c@116:         double Q;
c@116:     };
c@116: 
c@116:     Properties getProperties() const { return m_p; }
c@116: 
c@116:     std::vector<std::complex<double> > processForward
c@116:         (const std::vector<std::complex<double> > &);
c@116: 
c@116:     std::vector<std::complex<double> > processInverse
c@116:         (const std::vector<std::complex<double> > &);
c@116: 
c@116: private:
c@127:     const CQParameters m_inparams;
c@116:     Properties m_p;
c@147:     bool m_valid;
c@116:     FFT *m_fft;
c@116: 
c@116:     struct KernelMatrix {
c@116:         std::vector<int> origin;
c@116:         std::vector<std::vector<std::complex<double> > > data;
c@116:     };
c@116:     KernelMatrix m_kernel;
c@116: 
c@127:     std::vector<double> makeWindow(int len) const;
c@147:     bool generateKernel();
c@116:     void finaliseKernel();
c@116: };
c@116: 
c@116: #endif