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106 lines
3.4 KiB
C++
106 lines
3.4 KiB
C++
/* snb.h
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This file is part of a program that implements a Software-Defined Radio.
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Copyright (C) 2015, 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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#ifndef wdsp_bpsnba_h
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#define wdsp_bpsnba_h
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namespace WDSP{
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class RXA;
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class NOTCHDB;
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class NBP;
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class BPSNBA
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{
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public:
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int run; // run the filter
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int run_notches; // use the notches, vs straight bandpass
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int position; // position in the processing pipeline
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int size; // buffer size
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int nc; // number of filter coefficients
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int mp; // minimum phase flag
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float* in; // input buffer
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float* out; // output buffer
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int rate; // sample rate
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float* buff; // internal buffer
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NBP *bpsnba; // pointer to the notched bandpass filter, nbp
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double f_low; // low cutoff frequency
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double f_high; // high cutoff frequency
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double abs_low_freq; // lowest positive freq supported by SNB
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double abs_high_freq; // highest positive freq supported by SNG
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int wintype; // filter window type
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double gain; // filter gain
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int autoincr; // use auto increment for notch width
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int maxpb; // maximum passband segments supported
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NOTCHDB* ptraddr; // pointer to address of NOTCH DATABASE
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static BPSNBA* create_bpsnba (
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int run,
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int run_notches,
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int position,
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int size,
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int nc,
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int mp,
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float* in,
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float* out,
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int rate,
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double abs_low_freq,
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double abs_high_freq,
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double f_low,
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double f_high,
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int wintype,
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double gain,
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int autoincr,
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int maxpb,
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NOTCHDB* ptraddr
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);
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static void destroy_bpsnba (BPSNBA *a);
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static void flush_bpsnba (BPSNBA *a);
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static void setBuffers_bpsnba (BPSNBA *a, float* in, float* out);
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static void setSamplerate_bpsnba (BPSNBA *a, int rate);
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static void setSize_bpsnba (BPSNBA *a, int size);
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static void xbpsnbain (BPSNBA *a, int position);
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static void xbpsnbaout (BPSNBA *a, int position);
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static void recalc_bpsnba_filter (BPSNBA *a, int update);
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// RXA Propertoes
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static void BPSNBASetNC (RXA& rxa, int nc);
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static void BPSNBASetMP (RXA& rxa, int mp);
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private:
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static void calc_bpsnba (BPSNBA *a);
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static void decalc_bpsnba (BPSNBA *a);
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};
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#endif
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} // namespace
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