Developer Reference

  • 2020
  • 10/21/2020
  • Public Content
Contents

YCbCr420

Converts 4:2:0 YCbCr image.

Syntax

IppStatus ippiYCbCr420_8u_P3P2R(const Ipp8u*
pSrc
[3], int
srcStep
[3], Ipp8u*
pDstY
, int
dstYStep
, Ipp8u*
pDstCbCr
, int
dstCbCrStep
, IppiSize
roiSize
);
IppStatus ippiYCbCr420_8u_P2P3R(const Ipp8u*
pSrcY
, int
srcYStep
, const Ipp8u*
pSrcCbCr
, int
srcCbCrStep
, 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
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 source and destination 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 function converts the
4:2:0
three-plane (see Table
“Planar Image Formats”
) source image
pSrc
to the 4:2:0 two-plane image and vice versa. Two-plane image contains luminance samples
Y0
,
Y1
,
Y2
, .. in the first plane, and interleaved chrominance samples
Cb0
,
Cr0
,
Cb1
,
Cr1
,... in the second plane.
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.

Product and Performance Information

1

Intel's compilers may or may not optimize to the same degree for non-Intel microprocessors for optimizations that are not unique to Intel microprocessors. These optimizations include SSE2, SSE3, and SSSE3 instruction sets and other optimizations. Intel does not guarantee the availability, functionality, or effectiveness of any optimization on microprocessors not manufactured by Intel. Microprocessor-dependent optimizations in this product are intended for use with Intel microprocessors. Certain optimizations not specific to Intel microarchitecture are reserved for Intel microprocessors. Please refer to the applicable product User and Reference Guides for more information regarding the specific instruction sets covered by this notice.

Notice revision #20110804