Performs the inverse DCT for block of type 2 (m0=1).
Syntax
IppStatus ippiDCT2x4x8Inv_16s_C1I(Ipp16s* pSrcDst);
Parameters
pSrcDst |
Pointer to the block. |
Description
This function is declared in the ippvc.h header file. The function ippiDCT2x4x8Inv_16s_C1I performs the inverse DCT for a block of type 2 (m0 = 1). Formula for inverse DCT is as follows:
where,
This function is used in the DV decoder included into Intel IPP Samples. See introduction to DV.
Return Values
ippStsNoErr |
Indicates no error. |
ippStsNullPtrErr |
Indicates an error when pSrcDst is NULL. |