YCbCr420ToCbYCr422

Converts 4:2:0 YCbCr image to 4:2:2 CbYCr image.

Syntax

IppStatus ippiYCbCr420ToCbYCr422_8u_P2C2R(const Ipp8u* pSrcY, int srcYStep, const Ipp8u* pSrcCbCr, int srcCbCrStep, Ipp8u* pDst, int dstStep, IppiSize roiSize);

Parameters

pSrcY	Pointer to the ROI in the luminance plane of the source image.
srcYStep	Distance in bytes between starts of consecutive lines in the luminance plane of the source image.
pSrcCbCr	Pointer to the ROI in the interleaved chrominance plane of the source image.
srcCbCrStep	Distance in bytes between starts of consecutive lines in the interleaved chrominance plane of the source image.
pDst	Pointer to the destination image ROI.
dstStep	Distance in bytes between starts of consecutive lines in the destination image.
roiSize	Size of the source and destination ROI in pixels, height and width should be multiple of 2.

Description

The function ippiYCbCr420ToCbYCr422 is declared in the ippcc.h file. It operates with ROI (see Regions of Interest in Intel IPP).

This function converts the planar 4:2:0 two-plane source image to the pixel-order 4:2:2 two-channel image. The first plane of the source image pSrcY contains luminance samples Y0, Y1, Y2, .., the second plane pSrcCbCr contains interleaved chrominance samples Cb0, Cr0, Cb1, Cr1, ... . The destination image pDst has the following sequence of samples: Cb0, Y0, Cr0, Y1, Cb1, Y2, Cr1, Y3, Cb2, ...

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 any field of the roiSize is less than 2.