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102 lines
2.9 KiB
C++
102 lines
2.9 KiB
C++
/* bandpass.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, 2017 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 Bandpass *
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* *
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********************************************************************************************************/
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#ifndef wdsp_bps_h
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#define wdsp_bps_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 RXA;
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class TXA;
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class WDSP_API BPS
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{
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public:
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int run;
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int position;
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int size;
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float* in;
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float* out;
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float f_low;
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float f_high;
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float* infilt;
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float* product;
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float* mults;
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float samplerate;
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int wintype;
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float gain;
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fftwf_plan CFor;
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fftwf_plan CRev;
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static BPS* create_bps (
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int run,
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int position,
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int size,
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float* in,
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float* out,
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float f_low,
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float f_high,
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int samplerate,
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int wintype,
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float gain
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);
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static void destroy_bps (BPS *a);
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static void flush_bps (BPS *a);
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static void xbps (BPS *a, int pos);
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static void setBuffers_bps (BPS *a, float* in, float* out);
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static void setSamplerate_bps (BPS *a, int rate);
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static void setSize_bps (BPS *a, int size);
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static void setFreqs_bps (BPS *a, float f_low, float f_high);
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// RXA Prototypes
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static void SetBPSRun (RXA& rxa, int run);
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static void SetBPSFreqs (RXA& rxa, float low, float high);
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static void SetBPSWindow (RXA& rxa, int wintype);
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// TXA Prototypes
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static void SetBPSRun (TXA& txa, int run);
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static void SetBPSFreqs (TXA& txa, float low, float high);
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static void SetBPSWindow (TXA& txa, int wintype);
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private:
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static void calc_bps (BPS *a);
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static void decalc_bps (BPS *a);
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};
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} // namespace WDSP
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#endif
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