DCT4GetSize

Computes the size of the DCT-IV specification structure.

Syntax

IppStatus ippgDCT4GetSize_32f(int len, int* pSize);

IppStatus ippgDCT4GetSize_64f(int len, int* pSize);

Parameters

len	Number of samples in the transform.
pSize	Pointer to the size of the DCT-IV specification structure.

Description

The function ippgDCT4GetSize is declared in the ippgen.h file. This function computes the size pSize of the DCT-IV structure with the length of transform len.

The function ippgDCT4GetSize must be called prior to the function ippgDCT4Init.

Return Values

ippStsNoErr	Indicates no error.
ippStsNullPtrErr	Indicates an error if the pointer pSize is NULL.
ippStsSizeErr	Indicates an error when len is less than or equal to 0.