Computes the inverse fast Fourier transform (FFT) of a real signal.
IppStatus ippsFFTInv_PermToR_AMRWBE_16s(const Ipp16s* pSrc, Ipp16s* pDst, int len);
pSrc |
Pointer to the transform coefficients. |
pDst |
Pointer to the real-valued sequence. |
len |
Length of the sequence, possible values 48, 96, 192, 288, 576 or 1152. |
The ippsFFTInv_RToPerm_AMRWBE function is declared in ippsc.h file. This function performs inverse FFT transform. Source data are stored in the Perm format. The results are stored as the real-valued sequence.
ippStsNoErr |
Indicates no error. |
ippStsNullPtrErr |
Indicates an error when one of the specified pointers is NULL. |
ippStsSizeErr |
Indicates an error when len is not equal to 48, 96, 192, 288, 576 or 1152. |
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