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/*
Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011 Her Majesty
the Queen in Right of Canada (Communications Research Center Canada)
Copyright (C) 2014
Matthias P. Braendli, matthias.braendli@mpb.li
http://opendigitalradio.org
*/
/*
This file is part of ODR-DabMod.
ODR-DabMod 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 3 of the
License, or (at your option) any later version.
ODR-DabMod 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 ODR-DabMod. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef OFDM_GENERATOR_H
#define OFDM_GENERATOR_H
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include "porting.h"
#include "ModCodec.h"
#if USE_FFTW
# include "fftw3.h"
#else
# include "kiss_fftsimd.h"
# include <kiss_fft.h>
#endif
#include <sys/types.h>
class OfdmGenerator : public ModCodec
{
public:
OfdmGenerator(size_t nbSymbols, size_t nbCarriers, size_t spacing, bool inverse = true);
virtual ~OfdmGenerator();
OfdmGenerator(const OfdmGenerator&);
OfdmGenerator& operator=(const OfdmGenerator&);
int process(Buffer* const dataIn, Buffer* dataOut);
const char* name() { return "OfdmGenerator"; }
protected:
#if USE_FFTW
fftwf_plan myFftPlan;
fftwf_complex *myFftIn, *myFftOut;
#else
FFT_PLAN myFftPlan;
FFT_TYPE *myFftBuffer;
#endif
size_t myNbSymbols;
size_t myNbCarriers;
size_t mySpacing;
unsigned myPosSrc;
unsigned myPosDst;
unsigned myPosSize;
unsigned myNegSrc;
unsigned myNegDst;
unsigned myNegSize;
unsigned myZeroDst;
unsigned myZeroSize;
};
#endif // OFDM_GENERATOR_H
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