mirror of
https://github.com/f4exb/sdrangel.git
synced 2024-11-25 09:18:54 -05:00
95 lines
2.6 KiB
C++
95 lines
2.6 KiB
C++
/* eq.h
|
|
|
|
This file is part of a program that implements a Software-Defined Radio.
|
|
|
|
Copyright (C) 2013, 2016 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
|
|
|
|
*/
|
|
|
|
/********************************************************************************************************
|
|
* *
|
|
* Overlap-Save Equalizer *
|
|
* *
|
|
********************************************************************************************************/
|
|
|
|
#ifndef wdsp_eq_h
|
|
#define wdsp_eq_h
|
|
|
|
#include <vector>
|
|
|
|
#include "fftw3.h"
|
|
#include "export.h"
|
|
|
|
namespace WDSP {
|
|
|
|
class WDSP_API EQ
|
|
{
|
|
public:
|
|
int run;
|
|
int size;
|
|
float* in;
|
|
float* out;
|
|
int nfreqs;
|
|
std::vector<float> F;
|
|
std::vector<float> G;
|
|
std::vector<float> infilt;
|
|
std::vector<float> product;
|
|
std::vector<float> mults;
|
|
float scale;
|
|
int ctfmode;
|
|
int wintype;
|
|
float samplerate;
|
|
fftwf_plan CFor;
|
|
fftwf_plan CRev;
|
|
|
|
EQ(
|
|
int run,
|
|
int size,
|
|
float *in,
|
|
float *out,
|
|
int nfreqs,
|
|
const float* F,
|
|
const float* G,
|
|
int ctfmode,
|
|
int wintype,
|
|
int samplerate
|
|
);
|
|
EQ(const EQ&) = delete;
|
|
EQ& operator=(EQ& other) = delete;
|
|
~EQ() = default;
|
|
|
|
void flush();
|
|
void execute();
|
|
void setBuffers(float* in, float* out);
|
|
void setSamplerate(int rate);
|
|
void setSize(int size);
|
|
|
|
private:
|
|
static void eq_mults (std::vector<float>& mults, int size, int nfreqs, float* F, float* G, float samplerate, float scale, int ctfmode, int wintype);
|
|
void calc();
|
|
void decalc();
|
|
};
|
|
|
|
} // namespace WDSP
|
|
|
|
#endif
|