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sdrangel/wdsp/sphp.hpp
2024-07-31 01:37:17 +02:00

73 lines
2.2 KiB
C++

/* sphp.h
This file is part of a program that implements a Software-Defined Radio.
Copyright (C) 2014, 2022, 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
*/
/********************************************************************************************************
* *
* Double Single-Pole High-Pass *
* *
********************************************************************************************************/
#ifndef wdsp_sphp_h
#define wdsp_sphp_h
#include "export.h"
namespace WDSP {
class WDSP_API SPHP
{
public:
int run;
int size;
float* in;
float* out;
double rate;
double fc;
int nstages;
double a1, b0, b1;
double* x0, * x1, * y0, * y1;
// Complex Single-Pole High-Pass
static SPHP* create_sphp(int run, int size, float* in, float* out, double rate, double fc, int nstages);
static void destroy_sphp(SPHP *a);
static void flush_sphp(SPHP *a);
static void xsphp(SPHP *a);
static void setBuffers_sphp(SPHP *a, float* in, float* out);
static void setSamplerate_sphp(SPHP *a, int rate);
static void setSize_sphp(SPHP *a, int size);
private:
static void calc_sphp(SPHP *a);
static void decalc_sphp(SPHP *a);
};
} // namespace WDSP
#endif