SSTV-Decoder/include/fft/fft.h

#pragma once

#include "inttypes.h"

#define q15_t int16_t
#define q31_t int32_t

#define FFT_BIN(num, re) (uint16_t)((float)(num + 0.5) * re)
#define FFT_INDEX(freq, re) (uint16_t)((float)freq / re)

int FFT(q15_t *data);
feat: fft and comman table 2023-04-23 21:24:45 +08:00			`#pragma once`

			`#include "inttypes.h"`

refactor: split fft lib 2023-04-23 21:36:04 +08:00			`#define q15_t int16_t`
			`#define q31_t int32_t`
feat: fft and comman table 2023-04-23 21:24:45 +08:00
refactor: code style (if-else in one line) remove: old hanning window feat: FFT fixed length 2023-04-24 01:05:42 +08:00			`#define FFT_BIN(num, re) (uint16_t)((float)(num + 0.5) * re)`
			`#define FFT_INDEX(freq, re) (uint16_t)((float)freq / re)`
feat: fft and comman table 2023-04-23 21:24:45 +08:00
refactor: code style (if-else in one line) remove: old hanning window feat: FFT fixed length 2023-04-24 01:05:42 +08:00			`int FFT(q15_t *data);`