csky_inv_rfft_q31_yv.c File Reference

Functions
void	csky_split_rifft_yv_q31 (q31_t *pSrc, uint32_t fftLen, const q31_t *pATable, const q31_t *pBTable, q31_t *pDst, uint32_t modifier)
void	csky_fft_lib_int32_ifft (q31_t log2_buf_len, q31_t *in_buf, q31_t *out_buf, const q31_t *twi_table, const twi_table_rfft_q31 *last_stage_twi_table, const uint16_t *bitrev_tbl, q31_t *temp_buf, q31_t br)
	Processing function for the Q31 real inverse FFT. More...
void	csky_split_rifft_q31 (q31_t *pSrc, uint32_t fftLen, q31_t *pATable, q31_t *pBTable, q31_t *pDst, uint32_t modifier)
	Core Real IFFT process. More...

Function Documentation

void csky_split_rifft_q31	(	q31_t *	pSrc,
		uint32_t	fftLen,
		q31_t *	pATable,
		q31_t *	pBTable,
		q31_t *	pDst,
		uint32_t	modifier
	)

end of RealFFT group

Parameters

[in]	*pSrc	points to the input buffer.
[in]	fftLen	length of FFT.
[in]	*pATable	points to the twiddle Coef A buffer.
[in]	*pBTable	points to the twiddle Coef B buffer.
[out]	*pDst	points to the output buffer.
[in]	modifier	twiddle coefficient modifier that supports different size FFTs with the same twiddle factor table.

Returns

none.

void csky_split_rifft_yv_q31	(	q31_t *	pSrc,
		uint32_t	fftLen,
		const q31_t *	pATable,
		const q31_t *	pBTable,
		q31_t *	pDst,
		uint32_t	modifier
	)