comparison cq/CQKernel.h @ 116:6deec2a51d13

Moving to standalone library layout

+/* -*- 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 <vector>
+#include <complex>
+
+class FFT;
+
+class CQKernel
+{
+public:
+    CQKernel(double sampleRate, double maxFreq, int binsPerOctave);
+    ~CQKernel();
+    
+    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:
+    Properties m_p;
+    FFT *m_fft;
+
+    struct KernelMatrix {
+        std::vector<int> origin;
+        std::vector<std::vector<std::complex<double> > > data;
+    };
+    KernelMatrix m_kernel;
+
+    void generateKernel();
+    void finaliseKernel();
+};
+
+#endif