2024-06-16 09:31:13 +00:00
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/* wcpAGC.h
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This file is part of a program that implements a Software-Defined Radio.
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Copyright (C) 2011, 2012, 2013 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_wcpagc_h
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#define wdsp_wcpagc_h
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#include <array>
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2024-06-16 09:31:13 +00:00
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#include "export.h"
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#define MAX_SAMPLE_RATE (384000.0)
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#define MAX_N_TAU (8)
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#define MAX_TAU_ATTACK (0.01)
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#define RB_SIZE (int)(MAX_SAMPLE_RATE * MAX_N_TAU * MAX_TAU_ATTACK + 1)
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namespace WDSP {
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class WDSP_API WCPAGC
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{
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public:
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int run;
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int mode;
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int pmode;
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float* in;
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float* out;
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int io_buffsize;
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double sample_rate;
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double tau_attack;
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double tau_decay;
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int n_tau;
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double max_gain;
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double var_gain;
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double fixed_gain;
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double min_volts;
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double max_input;
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double out_targ;
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double out_target;
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double inv_max_input;
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double slope_constant;
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double gain;
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double inv_out_target;
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int out_index;
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int in_index;
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int attack_buffsize;
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std::array<double, RB_SIZE*2> ring;
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std::array<double, RB_SIZE> abs_ring;
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static const int ring_buffsize = RB_SIZE;
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double ring_max;
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double attack_mult;
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double decay_mult;
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double volts;
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double save_volts;
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std::array<double, 2> out_sample;
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double abs_out_sample;
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int state;
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double tau_fast_backaverage;
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double fast_backmult;
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double onemfast_backmult;
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double fast_backaverage;
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double tau_fast_decay;
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double fast_decay_mult;
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double pop_ratio;
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int hang_enable;
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double hang_backaverage;
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double tau_hang_backmult;
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double hang_backmult;
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double onemhang_backmult;
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int hang_counter;
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double hangtime;
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double hang_thresh;
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double hang_level;
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double tau_hang_decay;
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double hang_decay_mult;
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int decay_type;
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WCPAGC(
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int run,
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int mode,
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int pmode,
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float* in,
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float* out,
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int io_buffsize,
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int sample_rate,
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double tau_attack,
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double tau_decay,
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int n_tau,
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double max_gain,
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double var_gain,
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double fixed_gain,
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double max_input,
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double out_targ,
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double tau_fast_backaverage,
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double tau_fast_decay,
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double pop_ratio,
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int hang_enable,
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double tau_hang_backmult,
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double hangtime,
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double hang_thresh,
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double tau_hang_decay
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);
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WCPAGC(const WCPAGC&) = delete;
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WCPAGC& operator=(const WCPAGC& other) = delete;
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~WCPAGC() = 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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// Public Properties
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void setMode(int mode);
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void setFixed(double fixed_agc);
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void setAttack(int attack);
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void setDecay(int decay);
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void setHang(int hang);
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void getHangLevel(double *hangLevel) const;
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void setHangLevel(double hangLevel);
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void getHangThreshold(int *hangthreshold) const;
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void setHangThreshold(int hangthreshold);
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void getTop(double *max_agc) const;
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void setTop(double max_agc);
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void setSlope(int slope);
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void setMaxInputLevel(double level);
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void setRun(int state);
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void loadWcpAGC();
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private:
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void calc();
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};
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} // namespace WDSP
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#endif
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