YCbCr422ToBGR_JPEG

Converts 16-bit per pixel YCbCr image to 24-bit per pixel BGR image.

Syntax

IppStatus ippiYCbCr422ToBGR_JPEG_8u_P3C3R(const Ipp8u* pSrc[3], int srcStep[3], Ipp8u* pDst, int dstStep, IppiSize roiSize);

IppStatus ippiYCbCr422ToBGR_JPEG_8u_P3C4R(const Ipp8u* pSrc[3], int srcStep[3], Ipp8u* pDst, int dstStep, IppiSize roiSize, Ipp8u aval);

Parameters

pSrc

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

srcStep

Array of distance values in bytes between starts of consecutive lines in each 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.

aval

Constant value to create the fourth channel.

Description

The function ippiYCbCr422ToBGR_JPEG is declared in the ippj.h file. It operates with ROI (see Regions of Interest in Intel IPP).

This function converts an YCbCr planar image pSrc, packed in 4:2:2 sampling format (see Figure “Different JPEG Sampling Formats” for more details) to the BGR image pDst according to the same formulas as the function ippiYCbCrToRGB_JPEG does. The output BGR values are saturated to the range [0..255].

Return Values

ippStsNoErr

Indicates no error. Any other value indicates an error or a warning.

ippStsNullPtrErr

Indicates an error condition if pSrc or pDst pointer is NULL.

ippStsSizeErr

Indicates an error condition if roiSize has a field with zero or negative value.

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