Intel® Integrated Performance Primitives (Intel® IPP) Developer Guide and Reference

ID 790148
Date 3/22/2024
Public
Document Table of Contents

ResizeYUV422GetSrcRoi

Computes the ROI of the source image for YUV422 resizing by tile processing.

Syntax

IppStatus ippiResizeYUV422GetSrcRoi(const IppiResizeYUV422Spec* 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 ippiResizeYUV422GetSrcRoi function, you need to initialize the pSpec parameter by calling one of the following functions: ippiResizeYUV422NearestInit or ippiResizeYUV422LinearInit.

NOTE:

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 specification structure is invalid.

ippStsOutOfRangeErr

Indicates an error if the destination image offset point is outside the destination image origin.

ippStsMisalignedOffsetErr

Indicates an error if x-value of the parameter dstRoiOffset is odd.

ippStsSizeErr

Indicates an error in the following cases:
  • If the height of the destination ROI is zero or negative.

  • If the width of the destination ROI is less than 2.

ippStsSizeWrn

Indicates a warning in the following cases:

  • If the width of the destination ROI is odd.

  • If the destination ROI exceeds the destination image origin.