/usr/include/CLAM/FourierTransform.hxx is in libclam-dev 1.4.0-7.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 | /*
* Copyright (c) 2001-2006 MUSIC TECHNOLOGY GROUP (MTG)
* UNIVERSITAT POMPEU FABRA
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#ifndef FourierTransform_hxx
#define FourierTransform_hxx
#include <vector>
#if USE_FFTW3
#include <fftw3.h>
#endif
class FourierTransform {
std::vector<double> _spectrum;
unsigned long mFrameSize;
bool mIsComplex;
#if USE_FFTW3
double * _realInput;
fftw_complex * _complexOutput;
fftw_plan _plan;
#endif
public:
FourierTransform(unsigned long int frameSize, double normalizationFactor, bool isComplex);
~FourierTransform();
void doIt(const float * input);
void doIt(const double * input);
const std::vector<double> & spectrum() const {return _spectrum;};
private:
template <typename T> void doItGeneric(const T * input);
};
#endif//FourierTransform_hxx
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