Intel® Integrated Performance Primitives (Intel® IPP) Developer Guide and Reference
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YCrCb420ToYCbCr422
Converts 4:2:0 YCrCb image to 4:2:2 YCbCr image.
Syntax
IppStatus ippiYCrCb420ToYCbCr422_8u_P3R(const Ipp8u* pSrc[3], int srcStep[3], Ipp8u* pDst[3], int dstStep[3], IppiSize roiSize);
IppStatus ippiYCrCb420ToYCbCr422_8u_P3C2R(const Ipp8u* pSrc[3], int srcStep[3], Ipp8u* pDst, int dstStep, IppiSize roiSize);
Include Files
ippcc.h
Domain Dependencies
Headers: ippcore.h, ippvm.h, ipps.h, ippi.h
Libraries: ippcore.lib, ippvm.lib, ipps.lib, ippi.lib
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 | Pointer to the ROI in the pixel-order destination image. Array of pointers to the ROI in each plane of the planar destination image. | 
| dstStep | Distance in bytes between starts of consecutive lines in the destination image. Array of distance values for the destination image planes. | 
| roiSize | Size of the ROI in pixels, height and width should be multiple of 2. | 
Description
This function converts the 4:2:0YCrCb three-plane image pSrc to the 4:2:2YCbCr three-plane or two-channel image pDst (see Table “Pixel-Order Image Formats” and Table “Planar Image Formats”).
This function operates with ROI (see Regions of Interest in Intel IPP).
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. |