Developer Reference

  • 2021
  • 03/26/2021
  • Public Content
Contents

FastNGetBufferSize

Computes the size of the work buffer for the
FastN
function.

Syntax

IppStatus ippiFastNGetBufferSize(IppiFastNSpec*
pSpec
, IppiSize
dstRoiSize
, int*
pBufSize
);
Include Files
ippcv.h
Domain Dependencies
Headers:
ippcore.h
,
ippvm.h
,
ipps.h
,
ippi.h
Libraries:
ippcore.lib
,
ippvm.lib
,
ipps.lib
,
ippi.lib
Parameters
pSpec
Pointer to the FastN specification structure.
dstRoiSize
Size of the destination ROI, in pixels.
pBufSize
Pointer to the computed size of the work buffer.
Description
This function computes the size of the work buffer for the
FastN
function. The result is stored in
pBufSize
.
Use the computed
pBufSize
value to allocate memory using the
ippMalloc
or
ippsMalloc
functions. The allocated memory can be freed only by the
ippFree
or
ippsFree
functions, respectively. For more information about the memory allocation functions, refer to the
Support Functions
section of the
Intel IPP Developer Reference, vol. 1
.
For an example on how to use this function, refer to the example provided with the
FastN
function description.
Return Values
ippStsNoErr
Indicates no error. Any other value indicates an error.
ippStsNullPtrErr
Indicates an error when
pSpecSize
or
pBufSize
is
NULL
.
ippStsSizeErr
Indicates an error when
dstRoiSize
is less than, or equal to zero.

Product and Performance Information

1

Performance varies by use, configuration and other factors. Learn more at www.Intel.com/PerformanceIndex.