Visible to Intel only — GUID: GUID-A892E68F-9F99-44CE-BF76-2C5C7C06447E
Visible to Intel only — GUID: GUID-A892E68F-9F99-44CE-BF76-2C5C7C06447E
RGBToYCbCr422
Converts an RGB image to the YCbCr image with 4:2:2 sampling.
Syntax
Case 1: Operation on pixel-order data
IppStatus ippiRGBToYCbCr422_8u_C3C2R(const Ipp8u* pSrc, int srcStep, Ipp8u* pDst, int dstStep, IppiSize roiSize);
Case 2; Conversion from pixel-order to planar data
IppStatus ippiRGBToYCbCr422_8u_C3P3R(const Ipp8u* pSrc, int srcStep, Ipp8u* pDst[3], int dstStep[3], IppiSize roiSize);
Case 2: Conversion from planar to pixel-order data
IppStatus ippiRGBToYCbCr422_8u_P3C2R(const Ipp8u* pSrc[3], int srcStep, 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 |
Pointer to the source image ROI for pixel-order image. An array of pointers to ROI in each separate source color planes for planar images. |
srcStep |
Distance in bytes between starts of consecutive lines in the source image. |
pDst |
Pointer to the destination image ROI for pixel-order image. An array of pointer to ROI in each separate planes for the planar destination image. |
dstStep |
Distance in bytes between starts of consecutive lines in the destination image. |
roiSize |
Size of the source and destination ROI in pixels. |
Description
This function operates with ROI (see Regions of Interest in Intel IPP). This function converts the gamma-corrected R'G'B' image pSrc to the Y'Cb'Cr' image pDst with 4:2:2 sampling (see Table “Pixel-Order Image Formats” and Table “Planar Image Formats” for more details). The conversion is performed according to the same formulas as the function ippiRGBToYCbCr does.
The converted buffer for pixel-order image has the reduced bit depth of a 16 bits per pixel, whereas the source buffer has 24 bit depth.
Return Values
ippStsNoErr |
Indicates no error. Any other value indicates an error or a warning. |
ippStsNullPtrErr |
Indicates an error condition if pSrc or pDst is NULL. |
ippStsSizeErr |
Indicates an error condition if roiSize has a field with a zero or negative value. |