FFTFree

Deallocates memory used by the FFT context structure.

Syntax

IppStatus ippiFFTFree_R_32s (IppiFFTSpec_R_32s* pFFTSpec);

IppStatus ippiFFTFree_R_32f (IppiFFTSpec_R_32f* pFFTSpec);

IppStatus ippiFFTFree_C_32fc (IppiFFTSpec_C_32fc* pFFTSpec);

Parameters

pFFTSpec

Pointer to the FFT context structure that has to be released.

Description

The function ippiFFTFree is declared in the ippi.h file. This function releases memory used by the previously initialized FFT context structure pFFTSpec.

Call this function after your application program has finished computing the fast Fourier transforms.

Return Values

ippStsNoErr	Indicates no error. Any other value indicates an error or a warning.
ippStsNullPtrErr	Indicates an error condition if pFFTSpec pointer is `NULL`.
ippStsContextMatchErr	Indicates an error condition if a pointer to an invalid pFFTSpec structure is passed.