30 lines
912 B
C
30 lines
912 B
C
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#pragma once
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#include <cstddef>
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#include <math.h>
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#include <vector>
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#include <complex>
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namespace fft {
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typedef float real_type;
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typedef std::complex<real_type> complex_type;
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bool fft_adc_sample(float * w, float ratio, const adcsample_t* data_in, complex_type* data_out, const size_t size);
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bool fft(const real_type* data_in, complex_type* data_out, const size_t size);
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void fft_freq(real_type* freq, const size_t size, const size_t sampleFreq);
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void fft_amp(const complex_type* fft_data, real_type* amplitude, const size_t size);
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void fft_db(real_type* amplitude, const size_t size);
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void rectwin(float * w, unsigned n);
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void hann(float * w, unsigned n, bool sflag);
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void hamming(float * w, unsigned n, bool sflag);
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void blackman(float * w, unsigned n, bool sflag);
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void blackmanharris(float * w, unsigned n, bool sflag);
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float get_main_freq(float* amplitudes, float* frequencies);
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}
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#include "fft.hpp"
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