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.