mirror of
https://github.com/f4exb/sdrangel.git
synced 2024-11-25 01:18:38 -05:00
107 lines
2.5 KiB
C++
107 lines
2.5 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 <vector>
|
|
|
|
#include "export.h"
|
|
|
|
namespace WDSP {
|
|
|
|
class WDSP_API VARSAMP
|
|
{
|
|
public:
|
|
int run;
|
|
int size;
|
|
float* in;
|
|
float* out;
|
|
int in_rate;
|
|
int out_rate;
|
|
float fcin;
|
|
float fc;
|
|
float fc_low;
|
|
float gain;
|
|
int idx_in;
|
|
int ncoef;
|
|
std::vector<float> h;
|
|
int rsize;
|
|
std::vector<float> ring;
|
|
float var;
|
|
int varmode;
|
|
float cvar;
|
|
float inv_cvar;
|
|
float old_inv_cvar;
|
|
float dicvar;
|
|
float delta;
|
|
std::vector<float> hs;
|
|
int R;
|
|
float h_offset;
|
|
float isamps;
|
|
float nom_ratio;
|
|
|
|
VARSAMP(
|
|
int run,
|
|
int size,
|
|
float* in,
|
|
float* out,
|
|
int in_rate,
|
|
int out_rate,
|
|
float fc,
|
|
float fc_low,
|
|
int R,
|
|
float gain,
|
|
float var,
|
|
int varmode
|
|
);
|
|
VARSAMP(const VARSAMP&) = delete;
|
|
VARSAMP& operator=(VARSAMP& other) = delete;
|
|
~VARSAMP() = default;
|
|
|
|
void flush();
|
|
int execute(float var);
|
|
void setBuffers(float* in, float* out);
|
|
void setSize(int size);
|
|
void setInRate(int rate);
|
|
void setOutRate(int rate);
|
|
void setFCLow(float fc_low);
|
|
void setBandwidth(float fc_low, float fc_high);
|
|
// Exported calls
|
|
static void* create_varsampV (int in_rate, int out_rate, int R);
|
|
static void xvarsampV (float* input, float* output, int numsamps, float var, int* outsamps, void* ptr);
|
|
static void destroy_varsampV (void* ptr);
|
|
|
|
private:
|
|
void calc();
|
|
void hshift();
|
|
};
|
|
|
|
} // namespace WDSP
|
|
|
|
#endif
|