YCbCr422ToYCbCr411
Converts YCbCr image from 4:2:2 sampling format to 4:1:1
format.
Syntax
Case 1: Operation on planar data
IppStatus
ippiYCbCr422ToYCbCr411_8u_P3R(const Ipp8u*
pSrc
[3], int
srcStep
[3], Ipp8u*
pDst
[3], int
dstStep
[3], IppiSize
roiSize
);
IppStatus
ippiYCbCr422ToYCbCr411_8u_P3P2R(const Ipp8u*
pSrc
[3], int
srcStep
[3], Ipp8u*
pDstY
, int
dstYStep
, Ipp8u*
pDstCbCr
, int
dstCbCrStep
, IppiSize
roiSize
);
Case 2: Conversion from pixel-order to planar
data
IppStatus
ippiYCbCr422ToYCbCr411_8u_C2P3R(const Ipp8u*
pSrc
, int
srcStep
, Ipp8u*
pDst
[3], int
dstStep
[3], IppiSize
roiSize
);
IppStatus
ippiYCbCr422ToYCbCr411_8u_C2P2R(const Ipp8u*
pSrc
, int
srcStep
, Ipp8u*
pDstY
, int
dstYStep
, Ipp8u*
pDstCbCr
, int
dstCbCrStep
, 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 ROI in the pixel-order source image. Array of pointers to the ROI in each plane of the planar source image.
- srcStep
- Distance in bytes between starts of consecutive lines in the source image. Array of distance values for the source image planes.
- 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.
Description
This function operates with ROI (see Regions of Interest in Intel
IPP).
This function converts the
4:2:2
image
pSrc
to the 4:1:1
image. The source image can be two-channel or
three-plane (see Table “Pixel-Order Image Formats”
for more details), destination
image always is planar with two or three planes (see Table “Planar
Image Formats”
for more details). The two-plane image contains
luminance samples Y0
, Y1
, Y2
, .. in the first plane pDstY
, and interleaved
chrominance samples Cb0
, Cr0
, Cb1
, Cr1
, ... in the
second plane pDstCbCr
.The value of the fields of the
roiSize
have certain
limitations:- its width should be multiple of 4 and cannot be less than 4 for
operation on two-channel images;
- its width should be multiple of 4 and cannot be less than 4, and
its height should be multiple of 2 and can not be less than 2 for three-plane to
two-plane image conversion;
- both height and width should be multiple of 2 and cannot be less
than 2 for operation on three-plane images.
Return Values
- ippStsNoErr
- Indicates no error. Any other value indicates an error.
- ippStsNullPtrErr
- Indicates an error condition if any of the specified pointers isNULL.
- ippStsSizeErr
- Indicates an error condition if corresponding fileds of theroiSizeis less than specified above values.