FIRSparseGetStateSize
FIRSparseGetStateSize
Computes the size of the external buffer for the sparse FIR filter structure.
Syntax
IppStatus ippsFIRSparseGetStateSize_32f(int
nzTapsLen
, int
order
, int*
pStateSize
);
IppStatus ippsFIRSparseGetStateSize_32fc(int
nzTapsLen
, int
order
, int*
pStateSize
);
Include Files
ipps.h
Domain Dependencies
Headers:
ippcore.h
,
ippvm.h
Libraries:
ippcore.lib
,
ippvm.lib
Parameters
- nzTapsLen
- Number of elements in the array containing the non-zero tap values.
- order
- Order of the sparse FIR filter.
- pStateSize
- Pointer to the computed value of the external buffer.
Description
This function computes the size of the external buffer for a sparse FIR filter structure that is required for the function ippsFIRSparseInit . Computation is based on the specified number of non-zero filter coefficients
(see description of the function
nzTapsLen
and filter order
order
that is equal to the number of elements in the delay line
pNZTapPos
[
nzTapsLen
-1]
ippsFIRSparseInit
). The result value is stored in the
pStateSize
.
Return Values
- ippStsNoErr
- Indicates no error.
- ippStsNullPtrErr
- Indicates an error ifpStateSizepointer isNULL.
- ippStsFIRLenErr
- Indicates an error ifnzTapsLenororderis less than or equal to 0; ornzTapsLenis more thanorder.