IIRGetStateSize

Computes the length of the external buffer for the arbitrary IIR filter state structure.

Syntax

IppStatus ippsIIRGetStateSize32s_16s(int order, int* pBufferSize);

IppStatus ippsIIRGetStateSize32s_16s32f(int order, int* pBufferSize);

IppStatus ippsIIRGetStateSize32f_16s(int order, int* pBufferSize);

IppStatus ippsIIRGetStateSize64f_16s(int order, int* pBufferSize);

IppStatus ippsIIRGetStateSize64f_32s(int order, int* pBufferSize);

IppStatus ippsIIRGetStateSize32sc_16sc(int order, int* pBufferSize);

IppStatus ippsIIRGetStateSize32sc_16sc32fc(int order, int* pBufferSize);

IppStatus ippsIIRGetStateSize32fc_16sc(int order, int* pBufferSize);

IppStatus ippsIIRGetStateSize64fc_16sc(int order, int* pBufferSize);

IppStatus ippsIIRGetStateSize64fc_32sc(int order, int* pBufferSize);

IppStatus ippsIIRGetStateSize_32f(int order, int* pBufferSize);

IppStatus ippsIIRGetStateSize64f_32f(int order, int* pBufferSize);

IppStatus ippsIIRGetStateSize_64f(int order, int* pBufferSize);

IppStatus ippsIIRGetStateSize_32fc(int order, int* pBufferSize);

IppStatus ippsIIRGetStateSize64fc_32fc(int order, int* pBufferSize);

IppStatus ippsIIRGetStateSize_64fc(int order, int* pBufferSize);

Parameters

order	Order of the IIR filter.
pBufferSize	Pointer to the computed buffer size value.

Description

The function ippsIIRGetStateSize is declared in the ipps.h file. This function computes the size of the external buffer for an arbitrary IIR filter state, and stores the result in pBufferSize.

To compute a size of the buffer, the filter order parameter order must be specified.

Return Values

ippStsNoErr	Indicates no error.
ippStsNullPtrErr	Indicates an error when pBufferSize pointer is NULL.
ippStsIIROrderErr	Indicates an error when order is less than or equal to 0.