csky_cfft_radix2_q31.c File Reference

Functions
void	csky_radix2_butterfly_q31 (q31_t *pSrc, uint32_t fftLen, q31_t *pCoef, uint16_t twidCoefModifier)
void	csky_radix2_butterfly_inverse_q31 (q31_t *pSrc, uint32_t fftLen, q31_t *pCoef, uint16_t twidCoefModifier)
void	csky_bitreversal_q31 (q31_t *pSrc, uint32_t fftLen, uint16_t bitRevFactor, uint16_t *pBitRevTab)
void	csky_cfft_radix2_q31 (const csky_cfft_radix2_instance_q31 *S, q31_t *pSrc)
	Processing function for the fixed-point CFFT/CIFFT. More...

Function Documentation

void csky_bitreversal_q31	(	q31_t *	pSrc,
		uint32_t	fftLen,
		uint16_t	bitRevFactor,
		uint16_t *	pBitRevTab
	)

void csky_cfft_radix2_q31	(	const csky_cfft_radix2_instance_q31 *	S,
		q31_t *	pSrc
	)

Deprecated:

Do not use this function. It has been superseded by csky_cfft_q31 and will be removed

Parameters

[in]	*S	points to an instance of the fixed-point CFFT/CIFFT structure.
[in,out]	*pSrc	points to the complex data buffer of size 2*fftLen. Processing occurs in-place.

Returns

none.

void csky_radix2_butterfly_inverse_q31	(	q31_t *	pSrc,
		uint32_t	fftLen,
		q31_t *	pCoef,
		uint16_t	twidCoefModifier
	)

void csky_radix2_butterfly_q31	(	q31_t *	pSrc,
		uint32_t	fftLen,
		q31_t *	pCoef,
		uint16_t	twidCoefModifier
	)