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Tonal
FourierTransform.hxx
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/*
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* Copyright (c) 2001-2006 MUSIC TECHNOLOGY GROUP (MTG)
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* UNIVERSITAT POMPEU FABRA
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*
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#ifndef FourierTransform_hxx
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#define FourierTransform_hxx
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#include <vector>
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#if USE_FFTW3
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#include <fftw3.h>
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#endif
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class
FourierTransform
{
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std::vector<double> _spectrum;
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unsigned
long
mFrameSize;
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bool
mIsComplex;
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#if USE_FFTW3
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double
* _realInput;
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fftw_complex * _complexOutput;
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fftw_plan _plan;
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#endif
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public
:
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FourierTransform
(
unsigned
long
int
frameSize,
double
normalizationFactor,
bool
isComplex);
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~FourierTransform
();
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void
doIt
(
const
float
* input);
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void
doIt
(
const
double
* input);
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const
std::vector<double> &
spectrum
()
const
{
return
_spectrum;};
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private
:
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template
<
typename
T>
void
doItGeneric(
const
T * input);
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};
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#endif//FourierTransform_hxx
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