mirror of
https://github.com/JvanKatwijk/dabradio
synced 2025-10-06 00:02:49 +02:00
71 lines
1.9 KiB
C++
71 lines
1.9 KiB
C++
/*
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*
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* Copyright (C) 2009 .. 2017
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* Jan van Katwijk (J.vanKatwijk@gmail.com)
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* Lazy Chair Computing
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*
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* This file is part of the Qt-DAB
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*
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* Qt-DAB 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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* Qt-DAB 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 Qt-DAB; 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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#ifndef _COMMON_FFT
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#define _COMMON_FFT
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// Simple wrapper around fftwf
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#include "dab-constants.h"
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#include "dab-params.h"
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#define FFTW_MALLOC fftwf_malloc
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#define FFTW_PLAN_DFT_1D fftwf_plan_dft_1d
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#define FFTW_DESTROY_PLAN fftwf_destroy_plan
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#define FFTW_FREE fftwf_free
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#define FFTW_PLAN fftwf_plan
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#define FFTW_EXECUTE fftwf_execute
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#include <fftw3.h>
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/*
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* a simple wrapper
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*/
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class fftHandler {
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public:
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fftHandler (uint8_t);
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~fftHandler (void);
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std::complex<float> *getVector (void);
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void do_FFT (void);
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void do_IFFT (void);
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private:
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dabParams p;
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int32_t fftSize;
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std::complex<float> *vector;
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FFTW_PLAN plan;
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};
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class common_ifft {
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public:
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common_ifft (int32_t);
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~common_ifft(void);
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std::complex<float> *getVector(void);
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void do_IFFT(void);
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private:
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int32_t fft_size;
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std::complex<float> *vector;
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FFTW_PLAN plan;
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void Scale(std::complex<float> *);
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};
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#endif
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