DFTOutOrdInitAlloc

Initializes the out-of-order discrete Fourier transform structure.

Syntax

IppStatus ippsDFTOutOrdInitAlloc_C_32fc(IppsDFTOutOrdSpec_C_32fc** ppDFTSpec, int len, int flag, IppHintAlgorithm hint);

IppStatus ippsDFTOutOrdInitAlloc_C_64fc(IppsDFTOutOrdSpec_C_64fc** ppDFTSpec, int len, int flag, IppHintAlgorithm hint);

Parameters

ppDFTSpec	Double pointer to the DFT specification structure to be created.
flag	Specifies the result normalization method. The values for the flag argument are described in the section Flag and Hint Arguments.
hint	Suggests using specific code for calculation. The values for the hint argument are described in the section Flag and Hint Arguments.
len	Length of the DFT transform.

Description

The function ippsDFTOutOrdInitAlloc_C is declared in the ipps.h file. This function creates and initializes the specification structure pDFTSpec for the out-of-order DFT with the following parameters: the transform len, the normalization flag, and the specific code hint.

Return Values

ippStsNoErr	Indicates no error.
ippStsNullPtrErr	Indicates an error when the pFFTSpec pointer is NULL.
ippStsSizeErr	Indicates an error when len is less than or equal to 0.
ippStsFftFlagErr	Indicates an error when the flag value is incorrect.
ippStsMemAllocErr	Indicates an error when no memory is allocated.