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95 lines
2.6 KiB
C++
95 lines
2.6 KiB
C++
/* eq.h
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This file is part of a program that implements a Software-Defined Radio.
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Copyright (C) 2013, 2016 Warren Pratt, NR0V
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Copyright (C) 2024 Edouard Griffiths, F4EXB Adapted to SDRangel
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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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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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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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The author can be reached by email at
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warren@wpratt.com
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*/
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/********************************************************************************************************
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* *
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* Overlap-Save Equalizer *
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* *
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********************************************************************************************************/
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#ifndef wdsp_eq_h
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#define wdsp_eq_h
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#include <vector>
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#include "fftw3.h"
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#include "export.h"
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namespace WDSP {
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class WDSP_API EQ
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{
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public:
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int run;
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int size;
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float* in;
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float* out;
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int nfreqs;
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std::vector<float> F;
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std::vector<float> G;
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std::vector<float> infilt;
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std::vector<float> product;
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std::vector<float> mults;
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float scale;
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int ctfmode;
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int wintype;
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float samplerate;
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fftwf_plan CFor;
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fftwf_plan CRev;
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EQ(
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int run,
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int size,
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float *in,
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float *out,
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int nfreqs,
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const float* F,
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const float* G,
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int ctfmode,
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int wintype,
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int samplerate
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);
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EQ(const EQ&) = delete;
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EQ& operator=(EQ& other) = delete;
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~EQ() = default;
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void flush();
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void execute();
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void setBuffers(float* in, float* out);
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void setSamplerate(int rate);
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void setSize(int size);
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private:
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static void eq_mults (std::vector<float>& mults, int size, int nfreqs, float* F, float* G, float samplerate, float scale, int ctfmode, int wintype);
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void calc();
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void decalc();
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};
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} // namespace WDSP
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#endif
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