Mercurial > hg > silvet
diff constant-q-cpp/cq/CQKernel.h @ 366:5d0a2ebb4d17
Bring dependent libraries in to repo
author | Chris Cannam |
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date | Fri, 24 Jun 2016 14:47:45 +0100 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/constant-q-cpp/cq/CQKernel.h Fri Jun 24 14:47:45 2016 +0100 @@ -0,0 +1,89 @@ +/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */ +/* + Constant-Q library + Copyright (c) 2013-2014 Queen Mary, University of London + + Permission is hereby granted, free of charge, to any person + obtaining a copy of this software and associated documentation + files (the "Software"), to deal in the Software without + restriction, including without limitation the rights to use, copy, + modify, merge, publish, distribute, sublicense, and/or sell copies + of the Software, and to permit persons to whom the Software is + furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be + included in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY + CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF + CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + + Except as contained in this notice, the names of the Centre for + Digital Music; Queen Mary, University of London; and Chris Cannam + shall not be used in advertising or otherwise to promote the sale, + use or other dealings in this Software without prior written + authorization. +*/ + +#ifndef CQ_KERNEL_H +#define CQ_KERNEL_H + +#include "CQParameters.h" + +#include <vector> +#include <complex> + +class FFT; + +class CQKernel +{ +public: + CQKernel(CQParameters params); + ~CQKernel(); + + bool isValid() const { return m_valid; } + + struct Properties { + double sampleRate; + double maxFrequency; + double minFrequency; + int binsPerOctave; + int fftSize; + int fftHop; + int atomsPerFrame; + int atomSpacing; + int firstCentre; + int lastCentre; + double Q; + }; + + Properties getProperties() const { return m_p; } + + std::vector<std::complex<double> > processForward + (const std::vector<std::complex<double> > &); + + std::vector<std::complex<double> > processInverse + (const std::vector<std::complex<double> > &); + +private: + const CQParameters m_inparams; + Properties m_p; + bool m_valid; + FFT *m_fft; + + struct KernelMatrix { + std::vector<int> origin; + std::vector<std::vector<std::complex<double> > > data; + }; + KernelMatrix m_kernel; + + std::vector<double> makeWindow(int len) const; + bool generateKernel(); + void finaliseKernel(); +}; + +#endif