YCrCb420ToYCbCr422_Filter

Converts 4:2:0 YCrCb image to 4:2:2 YCbCr image with additional filtering.

Syntax

IppStatus ippiYCrCb420ToYCbCr422_Filter_8u_P3R(const Ipp8u* pSrc[3], int srcStep[3], Ipp8u* pDst[3], int dstStep[3], IppiSize roiSize);

Parameters

pSrc

Array of pointers to the ROI in each plane of the source image.

srcStep

Array of distances in bytes between starts of consecutive lines in each plane of the source image.

pDst

Array of pointers to the ROI in each plane of the destination image.

dstStep

Array of distances in bytes between starts of consecutive lines in each plane of the destination image.

roiSize

Size of the ROI in pixels, its width should be multiple of 2, its height should be multiple of 8.

Description

The function ippiYCrCb420ToYCbCr422_Filter is declared in the ippcc.h file. It operates with ROI (see Regions of Interest in Intel IPP).

This function converts the 4:2:0 YCrCb three-plane image pSrc to the 4:2:2 YCbCr three-plane image pDst (see Table “Planar Image Formats”).

Additionally, this function performs the vertical upsampling using a Catmull-Rom interpolation (cubic convolution interpolation).

Return Values

ippStsNoErr

Indicates no error. Any other value indicates an error.

ippStsNullPtrErr

Indicates an error condition if any of the specified pointers is NULL.

ippStsSizeErr

Indicates an error condition if roiSize.width is less than 2 or roiSize.height is less than 8.

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