CMSIS-DSP
Version 1.10.0
CMSIS DSP Software Library
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Functions | |
void | arm_split_rfft_q31 (q31_t *pSrc, uint32_t fftLen, const q31_t *pATable, const q31_t *pBTable, q31_t *pDst, uint32_t modifier) |
Core Real FFT process. More... | |
void | arm_split_rifft_q31 (q31_t *pSrc, uint32_t fftLen, const q31_t *pATable, const q31_t *pBTable, q31_t *pDst, uint32_t modifier) |
Core Real IFFT process. More... | |
void | arm_rfft_q31 (const arm_rfft_instance_q31 *S, q31_t *pSrc, q31_t *pDst) |
Processing function for the Q31 RFFT/RIFFT. More... | |
void arm_split_rfft_q31 | ( | q31_t * | pSrc, |
uint32_t | fftLen, | ||
const q31_t * | pATable, | ||
const q31_t * | pBTable, | ||
q31_t * | pDst, | ||
uint32_t | modifier | ||
) |
end of RealFFT group
[in] | pSrc | points to input buffer |
[in] | fftLen | length of FFT |
[in] | pATable | points to twiddle Coef A buffer |
[in] | pBTable | points to twiddle Coef B buffer |
[out] | pDst | points to output buffer |
[in] | modifier | twiddle coefficient modifier that supports different size FFTs with the same twiddle factor table |
void arm_split_rifft_q31 | ( | q31_t * | pSrc, |
uint32_t | fftLen, | ||
const q31_t * | pATable, | ||
const q31_t * | pBTable, | ||
q31_t * | pDst, | ||
uint32_t | modifier | ||
) |
[in] | pSrc | points to input buffer |
[in] | fftLen | length of FFT |
[in] | pATable | points to twiddle Coef A buffer |
[in] | pBTable | points to twiddle Coef B buffer |
[out] | pDst | points to output buffer |
[in] | modifier | twiddle coefficient modifier that supports different size FFTs with the same twiddle factor table |