函数
void	csky_radix4_butterfly_yv_q31 (q31_t pSrc, uint32_t fftLen, const q31_t pCoef, uint32_t twidCoefModifier)

void	csky_bitreversal_32 (uint32_t pSrc, const uint16_t bitRevLen, const uint16_t pBitRevTable)

void	csky_cfft_radix4by2_yv_q31 (q31_t pSrc, uint32_t fftLen, const q31_t pCoef)

void	csky_fft_lib_cx32_fft (q31_t log2_buf_len, q31_t in_buf, q31_t out_buf, const q31_t twi_table, const uint16_t bitrev_tbl, q31_t *temp_buf, q31_t br)
	Q31 复数快速傅里叶变换更多...

函数说明

void csky_radix4_butterfly_yv_q31	(	q31_t *	pSrc,
		uint32_t	fftLen,
		const q31_t *	pCoef,
		uint32_t	twidCoefModifier
	)