Intel® Integrated Performance Primitives Developer Guide and Reference

ID 790148
Date 11/07/2023
Public

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Document Table of Contents

YCrCb422ToYCbCr420

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

Syntax

IppStatus ippiYCrCb422ToYCbCr420_8u_C2P3R(const Ipp8u* pSrc, int srcStep, Ipp8u* pDst[3], int dstStep[3], 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

Pointer to the source image ROI.

srcStep

Distance in bytes between starts of consecutive lines in 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 the destination image planes.

roiSize

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

Description

This function operates with ROI (see Regions of Interest in Intel IPP).

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

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.