Source: kpsk/modes/psk31-fft.h
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#ifndef PSK31_FFT_H_INCLUDED
#define PSK31_FFT_H_INCLUDED
#include "stdio.h"
#include "hansis_fft.h"
class psk31_fft {
public:
static const int MODE_RXDATA=0;
static const int MODE_NARROWIF=1;
void set_parameters(int len, int _overlap, int _mode);
void get_parameters(int *len, int *over, int *mode);
void add_rx_sample(int sample);
void add_if_sample(float I, float Q);
int has_new_data();
int get_abs_data(float *data, int start, int len, int delta);
psk31_fft() {
rxdata = NULL;
Idata = Qdata = NULL;
fft = NULL;
window = NULL;
N = valid_counter=-1;
}
private:
inline float sqr(float x) {
return x * x;
}
int N;
int overlap;
int mode;
int *rxdata;
float *Idata, *Qdata;
int cnt;
int valid_counter;
FFTer *fft;
float *window;
};
#endif
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