CMSIS-DSP
Verison 1.1.0
CMSIS DSP Software Library
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Functions | |
void | arm_split_rfft_q31 (q31_t *pSrc, uint32_t fftLen, q31_t *pATable, q31_t *pBTable, q31_t *pDst, uint32_t modifier) |
Core Real FFT process. | |
void | arm_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. | |
void | arm_rfft_q31 (const arm_rfft_instance_q31 *S, q31_t *pSrc, q31_t *pDst) |
Processing function for the Q31 RFFT/RIFFT. |
void arm_split_rfft_q31 | ( | q31_t * | pSrc, |
uint32_t | fftLen, | ||
q31_t * | pATable, | ||
q31_t * | pBTable, | ||
q31_t * | pDst, | ||
uint32_t | modifier | ||
) |
end of RFFT_RIFFT group
[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. |
Referenced by arm_rfft_q31().
void arm_split_rifft_q31 | ( | q31_t * | pSrc, |
uint32_t | fftLen, | ||
q31_t * | pATable, | ||
q31_t * | pBTable, | ||
q31_t * | pDst, | ||
uint32_t | modifier | ||
) |
[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. |
Referenced by arm_rfft_q31().