Developer Reference

  • 2020
  • 07/15/2020
  • Public Content
Contents

ResizeYUV420GetSrcRoi

Computes the ROI of the source image for NV12 resizing by tile processing.

Syntax

Single precision
IppStatus ippiResizeYUV420GetSrcRoi(
const
IppiResizeYUV420Spec*
pSpec
, IppiPoint
dstRoiOffset
, IppiSize
dstRoiSize
, IppiPoint*
srcRoiOffset
, IppiSize*
srcRoiSize
);
Include Files
ippi.h
Domain Dependencies
Headers:
ippcore.h
,
ippvm.h
,
ipps.h
Libraries:
ippcore.lib
,
ippvm.lib
,
ipps.lib
Parameters
pSpec
Pointer to the spec structure for the resize filter.
dstRoiOffset
Offset of the tiled destination image ROI.
dstRoiSize
Size of the tiled destination image ROI.
srcRoiOffset
Offset of the source image ROI.
srcRoiSize
Pointer to the size of the source image ROI.
Description
This function computes the ROI of the processed source image using the processed ROI of the destination image for the corresponding resize transform by tile processing. The
pSpec
parameter defines the resize algorithm parameters. Prior to using the
ippiResizeYUV420GetSrcRoi
function, you need to initialize the
pSpec
parameter by calling one of the following functions:
ippiResizeYUV420LanczosInit
or
ippiResizeYUV420SuperInit
functions.
If the destination ROI size exceeds the image origin, the source ROI will be obtained for an intersection of the destination ROI and image origin.
Return Values
ippStsNoErr
Indicates no error.
ippStsNullPtrErr
Indicates an error if one of the specified pointers is
NULL
.
ippStsContextMatchErr
Indicates an error if pointer to the spec structure is invalid.
ippStsOutOfRangeErr
Indicates an error if the destination image offset point is outside the destination image origin.
ippStsMisalignedOffsetErr
Indicates an error if one of the fields of the
dstRoiOffset
parameter is odd.
ippStsSizeErr
Indicates an error if one of the fields of the
dstRoiSize
is less than 2.
ippStsSizeWrn
Indicates a warning if the destination ROI exceeds the destination image origin or contains odd values.

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