Visible to Intel only — GUID: GUID-B9766F03-E903-4A8D-8809-35DB1F0AE3BC
Visible to Intel only — GUID: GUID-B9766F03-E903-4A8D-8809-35DB1F0AE3BC
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. |