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rtty-bandfilter.h
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rtty-bandfilter.h
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#
/*
* Copyright (C) 2020
* Jan van Katwijk (J.vanKatwijk@gmail.com)
* Lazy Chair Computing
*
* This file is part of the SDRuno rtty decoder
*
* rtty decoder 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.
*
* rtty decoder 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 rtty decoder; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef __BANDPASS_FILTER_H
#define __BANDPASS_FILTER_H
#include <complex>
#include <vector>
class rttyBandfilter {
public:
rttyBandfilter (int16_t, int32_t, int32_t, int32_t);
~rttyBandfilter ();
std::complex<float> Pass (std::complex<float>);
void update (int, int);
private:
std::vector<float> filterBase;
std::vector<std::complex<float>> filterKernel;
std::vector<std::complex<float>> Buffer;
int sampleRate;
int ip;
int filterSize;
};
#endif