SmoothingLuma_HorEdge

Performs smoothing filtering on the horizontal edge (internal or external) of luma 16X16 macroblocks.

Syntax

IppStatus ippiSmoothingLuma_HorEdge_VC1_16s8u_C1R( Ipp16s* pSrcDstUpper, Ipp32s srcDstUpperStep, Ipp16s* pSrcDstBottom, Ipp32s srcDstBottomStep, Ipp8u* pDst, Ipp32s dstStep, Ipp32u edgeDisableFlag );

Parameters

pSrcDstUpper	Pointer to the first pixel of the bottom left block row of the upper macroblock, from which the smoothing starts.
srcDstUpperStep	Step for transfer to the next row in the upper macroblock.
pSrcDstBottom	Pointer to the first pixel of the top left block of the bottom macroblock.
srcDstBottomStep	Step for transfer to the next row in the bottom macroblock.
pDst	Pointer to the first pixel of the bottom macroblock in the Y-plane.
dstStep	Distance in bytes between starts of the consecutive lines in the Y-plane.
edgeDisableFlag	Flag indicating that if (edgeDisableFlag & IPPVC_EDGE_HALF_1), then the left horizontal edge is disabled for smoothing, if (edgeDisableFlag & IPPVC_EDGE_HALF_2), then the right horizontal edge is disabled for smoothing.

Description

The function ippiSmoothingLuma_HorEdge_VC1_16s8u_C1R is declared in the ippvc.h file. The function performs smoothing filtering on the horizontal edge (internal or external) of the luma 16x16 macroblocks. See 8.5 of [SMPTE421M].

Horizontal Smoothing Between Two Macroblocks

Horizontal Smoothing Inside One Macroblock

All samples of the source block should be within the range [-2048; 2047). After smoothing, all samples of the destination block are within the range [-512, 511).

Return Values

ippStsNoErr	Indicates no error.
ippStsNullPtrErr	Indicates an error condition when source or destination pointers are NULL.