sdrangel/wdsp/fmmod.hpp

/*  fmmod.h

This file is part of a program that implements a Software-Defined Radio.

Copyright (C) 2013, 2016, 2023 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_fmmod_h
#define wdsp_fmmod_h

#include "export.h"

namespace WDSP {

class FIRCORE;
class TXA;

class WDSP_API FMMOD
{
public:
    int run;
    int size;
    float* in;
    float* out;
    float samplerate;
    float deviation;
    float f_low;
    float f_high;
    int ctcss_run;
    float ctcss_level;
    float ctcss_freq;
    // for ctcss gen
    float tscale;
    float tphase;
    float tdelta;
    // mod
    float sphase;
    float sdelta;
    // bandpass
    int bp_run;
    float bp_fc;
    int nc;
    int mp;
    FIRCORE *p;

    static FMMOD* create_fmmod (
        int run,
        int size,
        float* in,
        float* out,
        int rate,
        float dev,
        float f_low,
        float f_high,
        int ctcss_run,
        float ctcss_level,
        float ctcss_freq,
        int bp_run,
        int nc,
        int mp
    );
    static void destroy_fmmod (FMMOD *a);
    static void flush_fmmod (FMMOD *a);
    static void xfmmod (FMMOD *a);
    static void setBuffers_fmmod (FMMOD *a, float* in, float* out);
    static void setSamplerate_fmmod (FMMOD *a, int rate);
    static void setSize_fmmod (FMMOD *a, int size);
    // TXA Properties
    static void SetFMDeviation (TXA& txa, float deviation);
    static void SetCTCSSFreq (TXA& txa, float freq);
    static void SetCTCSSRun (TXA& txa, int run);
    static void SetFMMP (TXA& txa, int mp);
    static void SetFMNC (TXA& txa, int nc);
    static void SetFMAFFreqs (TXA& txa, float low, float high);

private:
    static void calc_fmmod (FMMOD *a);
};

} // namespace WDSP

#endif