YCbCr420ToYCbCr411

Converts YCbCr image from 4:2:0 sampling format to 4:1:1 format.

Syntax

IppStatus ippiYCbCr420ToYCbCr411_8u_P3P2R(const Ipp8u* pSrc[3], int srcStep[3], Ipp8u* pDstY, int dstYStep, Ipp8u* pDstCbCr, int dstCbCrStep, IppiSize roiSize);

IppStatus ippiYCbCr420ToYCbCr411_8u_P2P3R(const Ipp8u* pSrcY, int srcYStep, const Ipp8u* pSrcCbCr, int srcCbCrStep, Ipp8u* pDst[3], int dstStep[3], IppiSize roiSize);

Parameters

pSrc	Array of pointers to the ROI in each plane for a three-plane source image.
srcStep	Array of distances in bytes between starts of consecutive lines in each plane for a three-plane source image.
pSrcY	Pointer to the ROI in the luminance plane for a two-plane source image.
srcYStep	Distance in bytes between starts of consecutive lines in the luminance plane of a source image.
pSrcCbCr	Pointer to the ROI in the interleaved chrominance plane for a two-plane source image.
srcCbCrStep	Distance in bytes between starts of consecutive lines in the interleaved chrominance plane of the source image.
pDst	Array of pointers to the ROI in each plane for a three-plane destination image.
dstStep	Array of distances in bytes between starts of consecutive lines in each plane for a three-plane destination image.
pDstY	Pointer to the ROI in the luminance plane for a two-plane destination image.
dstYStep	Distance in bytes between starts of consecutive lines in the luminance plane of a destination image.
pDstCbCr	Pointer to the ROI in the interleaved chrominance plane for a two-plane destination image.
dstCbCrStep	Distance in bytes between starts of consecutive lines in the chrominance plane of a destination image.
roiSize	Size of the ROI in pixels, its width should be multiple of 4, its height should be multiple of 2.

Description

The function ippiYCbCr420ToYCbCr411 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 source image to the 4:1:1 destination image. The source two-plane image is converted to destination three-plane image and vice versa. The first plane of the two-plane image contains luminance samples Y0, Y1, Y2, ..., the second plane contains interleaved chrominance samples Cb0, Cr0, Cb1, Cr1, .... The three-plane image has the following order of pointers: Y-plane, Cb-plane, Cr-plane (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 roiSize.width is less than 4 or roiSize.height is less than 2.