DCTFwdInitAlloc

Allocates memory and initializes the forward DCT structure.

Syntax

IppStatus ippsDCTFwdInitAlloc_16s(IppsDCTFwdSpec_16s** ppDCTSpec, int len, IppHintAlgorithm hint);

IppStatus ippsDCTFwdInitAlloc_32f(IppsDCTFwdSpec_32f** ppDCTSpec, int len, IppHintAlgorithm hint);

IppStatus ippsDCTFwdInitAlloc_64f(IppsDCTFwdSpec_64f** ppDCTSpec, int len, IppHintAlgorithm hint);

Parameters

ppDCTSpec	Double pointer to the forward DCT specification structure to be created.
len	Number of samples in the DCT.
hint	Suggests using specific code for calculation. The values for the hint argument are described in the section Flag and Hint Arguments.

Description

The function ippsDCTFwdInitAlloc is declared in the ipps.h file. This function allocates memory and initializes the forward DCT specification structure ppDCTSpec with the following parameters: the transform len, and the specific code hint.

The forward DCT specification structure is used by the function ippsDCTFwd.

Return Values

ippStsNoErr	Indicates no error.
ippStsNullPtrErr	Indicates an error if the ppDCTSpec pointer is NULL.
ippStsSizeErr	Indicates an error if len is less than or equal to 0.
ippStsMemAllocErr	Indicates an error if memory allocation fails.