sdrangel/wdsp/anr.hpp

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2024-06-16 09:31:13 +00:00
/* anr.h
This file is part of a program that implements a Software-Defined Radio.
Copyright (C) 2012, 2013 Warren Pratt, NR0V
Copyright (C) 2024 Edouard Griffiths, F4EXB Adapted to SDRangel
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
The author can be reached by email at
warren@wpratt.com
*/
#ifndef wdsp_anr_h
#define wdsp_anr_h
#include "export.h"
#define ANR_DLINE_SIZE 2048
namespace WDSP {
class RXA;
class WDSP_API ANR
{
public:
int run;
int position;
int buff_size;
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float *in_buff;
float *out_buff;
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int dline_size;
int mask;
int n_taps;
int delay;
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float two_mu;
float gamma;
float d [ANR_DLINE_SIZE];
float w [ANR_DLINE_SIZE];
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int in_idx;
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float lidx;
float lidx_min;
float lidx_max;
float ngamma;
float den_mult;
float lincr;
float ldecr;
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static ANR* create_anr (
int run,
int position,
int buff_size,
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float *in_buff,
float *out_buff,
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int dline_size,
int n_taps,
int delay,
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float two_mu,
float gamma,
float lidx,
float lidx_min,
float lidx_max,
float ngamma,
float den_mult,
float lincr,
float ldecr
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);
static void destroy_anr (ANR *a);
static void flush_anr (ANR *a);
static void xanr (ANR *a, int position);
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static void setBuffers_anr (ANR *a, float* in, float* out);
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static void setSamplerate_anr (ANR *a, int rate);
static void setSize_anr (ANR *a, int size);
// RXA Properties
static void SetANRRun (RXA& rxa, int setit);
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static void SetANRVals (RXA& rxa, int taps, int delay, float gain, float leakage);
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static void SetANRTaps (RXA& rxa, int taps);
static void SetANRDelay (RXA& rxa, int delay);
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static void SetANRGain (RXA& rxa, float gain);
static void SetANRLeakage (RXA& rxa, float leakage);
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static void SetANRPosition (RXA& rxa, int position);
};
} // namespace WDSP
#endif