Developer Reference

  • 2021
  • 01/25/2021
  • Public Content
Contents

WTFwdGetSize, WTInvGetSize

Compute the size of the wavelet transform state structures.

Syntax

IppStatus ippsWTFwdGetSize(IppDataType
srcType
, int
lenLow
, int
offsLow
, int
lenHigh
, int
offsHigh
, int*
pStateSize
);
IppStatus ippsWTInvGetSize(IppDataType
dstType
, int
lenLow
, int
offsLow
, int
lenHigh
, int
offsHigh
, int*
pStateSize
);
Include Files
ipps.h
Domain Dependencies
Headers:
ippcore.h
,
ippvm.h
Libraries:
ippcore.lib
,
ippvm.lib
Parameters
srcType
,
dstType
Data type of the transformed vector.
lenLow
Length of the low-pass filter.
offsLow
Input delay of the low-pass filter.
lenHigh
Length of the high-pass filter.
offsHigh
Input delay of the high-pass filter.
pStateSize
Pointer to the size of the
ippsWTFwd
or
ippsWTInv
state structure, in bytes.
Description
The
ippsWTFwd
and
ippsWTInv
functions compute the size of the
ippsWTFwd
and
ippsWTInv
state structures, in bytes, for the
ippsWTFwdInit
and
ippsWTInvInit
functions, respectively.
For an example on how to use these functions, refer to Wavelet Transforms Example.
Return Values
ippStsNoErr
Indicates no error.
ippStsNullPtrErr
Indicates an error when any of the specified pointers is
NULL
.
ippStsSizeErr
Indicates an error when
lenLow
or
lenHigh
is less than, or equal to zero.
ippStsWtOffsetErr
Indicates an error when the filter delay
offsLow
or
offsHigh
is less than -1.

Product and Performance Information

1

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