Closes the DFT specification structure for real and complex signals.
Case 1: Operation on real signal
IppStatus ippsDFTFree_R_16s( IppsDFTSpec_R_16s* pDFTSpec);
IppStatus ippsDFTFree_R_32f( IppsDFTSpec_R_32f* pDFTSpec);
IppStatus ippsDFTFree_R_64f(IppsDFTSpec_R_64f* pDFTSpec);
Case 2: Operation on complex signal
IppStatus ippsDFTFree_C_16s( IppsDFTSpec_C_16s* pDFTSpec);
IppStatus ippsDFTFree_C_32f( IppsDFTSpec_C_32f* pDFTSpec);
IppStatus ippsDFTFree_C_64f( IppsDFTSpec_C_64f* pDFTSpec);
IppStatus ippsDFTFree_C_16sc( IppsDFTSpec_C_16sc* pDFTSpec);
IppStatus ippsDFTFree_C_32fc( IppsDFTSpec_C_32fc* pDFTSpec);
IppStatus ippsDFTFree_C_64fc( IppsDFTSpec_C_64fc* pDFTSpec);
pDFTSpec |
Pointer to the DFT specification structure. |
The function ippsDFTFree is declared in the ipps.h file. This function closes the DFT specification structure pDFTSpec initialized by the function ippsDFTInitAlloc_C or ippsDFTInitAlloc_R. Call ippsDFTFree after the transform is completed.
ippsDFTFree_R. The function ippsDFTFree_R closes the real DFT specification structure.
ippsDFTFree_C. The function ippsDFTFree_C closes the complex DFT specification structure.
ippStsNoErr |
Indicates no error. |
ippStsNullPtrErr |
Indicates an error when the pDFTSpec pointer is NULL. |
ippStsContextMatchErr |
Indicates an error when the specification identifier pDFTSpec is incorrect. |
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