TransformPrediction

Performs inverse transform of inter prediction samples for the current macroblock in decoding process for P macroblocks in SP slices or SI macroblocks.

Syntax

IppStatus ippiTransformPrediction_H264_8u16s_C1(const Ipp8u* pSrc, Ipp32s step, Ipp16s* pDst);

Parameters

pSrc	Pointer to the array of inter prediction samples for the current macroblock (4x4 block).
step	Distance in bytes between starts of the consecutive lines in the source buffer.
pDst	Destination array of size 16.

Description

The function ippiTransformPrediction_H264_8u16s_C1 is declared in the ippvc.h file. The function performs inverse transform of inter prediction samples for the current macroblock in decoding process for P macroblocks in SP slices or SI macroblocks (the formula 8-286 of [JVTG050]).

This function is used in the H.264 decoder included into Intel IPP Samples. See introduction to H.264.

Return Values

ippStsNoErr	Indicates no error.
ippStsNullPtrErr	Indicates an error condition if at least one of the specified pointers is NULL.