mirror of
https://github.com/f4exb/sdrangel.git
synced 2024-11-11 02:46:12 -05:00
103 lines
2.7 KiB
C++
103 lines
2.7 KiB
C++
|
/* varsamp.h
|
||
|
|
|
||
|
|
This file is part of a program that implements a Software-Defined Radio.
|
||
|
|
|
||
|
|
Copyright (C) 2017 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_varsamp_h
|
||
|
|
#define wdsp_varsamp_h
|
||
|
|
|
||
|
|
#include "export.h"
|
||
|
|
|
||
|
|
namespace WDSP {
|
||
|
|
|
||
|
|
class WDSP_API VARSAMP
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
int run;
|
||
|
|
int size;
|
||
|
|
double* in;
|
||
|
|
double* out;
|
||
|
|
int in_rate;
|
||
|
|
int out_rate;
|
||
|
|
double fcin;
|
||
|
|
double fc;
|
||
|
|
double fc_low;
|
||
|
|
double gain;
|
||
|
|
int idx_in;
|
||
|
|
int ncoef;
|
||
|
|
double* h;
|
||
|
|
int rsize;
|
||
|
|
double* ring;
|
||
|
|
double var;
|
||
|
|
int varmode;
|
||
|
|
double cvar;
|
||
|
|
double inv_cvar;
|
||
|
|
double old_inv_cvar;
|
||
|
|
double dicvar;
|
||
|
|
double delta;
|
||
|
|
double* hs;
|
||
|
|
int R;
|
||
|
|
double h_offset;
|
||
|
|
double isamps;
|
||
|
|
double nom_ratio;
|
||
|
|
|
||
|
|
static VARSAMP* create_varsamp (
|
||
|
|
int run,
|
||
|
|
int size,
|
||
|
|
double* in,
|
||
|
|
double* out,
|
||
|
|
int in_rate,
|
||
|
|
int out_rate,
|
||
|
|
double fc,
|
||
|
|
double fc_low,
|
||
|
|
int R,
|
||
|
|
double gain,
|
||
|
|
double var,
|
||
|
|
int varmode
|
||
|
|
);
|
||
|
|
static void destroy_varsamp (VARSAMP *a);
|
||
|
|
static void flush_varsamp (VARSAMP *a);
|
||
|
|
static int xvarsamp (VARSAMP *a, double var);
|
||
|
|
static void setBuffers_varsamp (VARSAMP *a, double* in, double* out);
|
||
|
|
static void setSize_varsamp (VARSAMP *a, int size);
|
||
|
|
static void setInRate_varsamp (VARSAMP *a, int rate);
|
||
|
|
static void setOutRate_varsamp (VARSAMP *a, int rate);
|
||
|
|
static void setFCLow_varsamp (VARSAMP *a, double fc_low);
|
||
|
|
static void setBandwidth_varsamp (VARSAMP *a, double fc_low, double fc_high);
|
||
|
|
// Exported calls
|
||
|
|
static void* create_varsampV (int in_rate, int out_rate, int R);
|
||
|
|
static void xvarsampV (double* input, double* output, int numsamps, double var, int* outsamps, void* ptr);
|
||
|
|
static void destroy_varsampV (void* ptr);
|
||
|
|
|
||
|
|
private:
|
||
|
|
static void calc_varsamp (VARSAMP *a);
|
||
|
|
static void decalc_varsamp (VARSAMP *a);
|
||
|
|
static void hshift (VARSAMP *a);
|
||
|
|
};
|
||
|
|
|
||
|
|
} // namespace WDSP
|
||
|
|
|
||
|
|
#endif
|