Developer Reference

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

ResizeYUV420GetBufferSize

Computes the size of the external buffer for the NV12 resize transform.

Syntax

IppStatus ippiResizeYUV420GetBufferSize(
const IppiResizeYUV420Spec*
pSpec
, IppiSize
dstSize
, Ipp32s*
pBufSize
);
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.
dstSize
Size in pixels of the destination image.
pBufSize
Pointer to the size in bytes of the external buffer.
Description
This function computes the size of the external buffer for the NV12 resize transform. The
pSpec
parameter defines the resize algorithm parameters. Prior to using the
ippiResizeYUV420GetBufferSize
function, you need to initialize the
pSpec
parameter by calling one of the following functions:
ippiResizeYUV420LanczosInit
and
ippiResizeYUV420SuperInit
.
Return Values
ippStsNoErr
Indicates no error.
ippStsNullPtrErr
Indicates an error if
pBufferSize
pointer is
NULL
.
ippStsNoOperation
Indicates a warning if width or height of the destination image is equal to zero.
ippStsContextMatchErr
Indicates an error if pointer to the spec structure is invalid.
ippStsSizeWrn
Indicates a warning in the following cases:
  • if width or height of the image is odd,
  • if the destination image size is more than the destination image origin size.
ippStsSizeErr
Indicates an error in the following cases:
  • if width or height of the image is equal to 1,
  • if width or height of the destination image is negative,
  • if the calculated buffer size exceeds maximum 32 bit signed integer positive value (the processed image size is too large).

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