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80 lines
2.6 KiB
C++
80 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 "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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float* F;
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float* G;
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float* infilt;
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float* product;
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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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static EQ* create_eq (int run, int size, float *in, float *out, int nfreqs, float* F, float* G, int ctfmode, int wintype, int samplerate);
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// static float* eq_mults (int size, int nfreqs, float* F, float* G, float samplerate, float scale, int ctfmode, int wintype);
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static void destroy_eq (EQ *a);
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static void flush_eq (EQ *a);
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static void xeq (EQ *a);
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static void setBuffers_eq (EQ *a, float* in, float* out);
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static void setSamplerate_eq (EQ *a, int rate);
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static void setSize_eq (EQ *a, int size);
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private:
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static float* eq_mults (int size, int nfreqs, float* F, float* G, float samplerate, float scale, int ctfmode, int wintype);
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static void calc_eq (EQ *a);
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static void decalc_eq (EQ *a);
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};
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} // namespace WDSP
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#endif
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