IIRGetStateSize

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

Syntax

IppStatus ippsIIRGetStateSize32s_BiQuad_16s(int numBq, int* pBufferSize);

IppStatus ippsIIRGetStateSize32s_BiQuad_16s32f(int numBq, int* pBufferSize);

IppStatus ippsIIRGetStateSize32f_BiQuad_16s(int numBq, int* pBufferSize);

IppStatus ippsIIRGetStateSize64f_BiQuad_16s(int numBq, int* pBufferSize);

IppStatus ippsIIRGetStateSize64f_BiQuad_32s(int numBq, int* pBufferSize);

IppStatus ippsIIRGetStateSize64f_BiQuad_DF1_32s(int numBq, int* pBufferSize);

IppStatus ippsIIRGetStateSize32sc_BiQuad_16sc(int numBq, int* pBufferSize);

IppStatus ippsIIRGetStateSize32sc_BiQuad_16sc32fc(int numBq, int* pBufferSize);

IppStatus ippsIIRGetStateSize32fc_BiQuad_16sc(int numBq, int* pBufferSize);

IppStatus ippsIIRGetStateSize64fc_BiQuad_16sc(int numBq, int* pBufferSize);

IppStatus ippsIIRGetStateSize64fc_BiQuad_32sc(int numBq, int* pBufferSize);

IppStatus ippsIIRGetStateSize_BiQuad_32f(int numBq, int* pBufferSize);

IppStatus ippsIIRGetStateSize_BiQuad_DF1_32f(int numBq, int* pBufferSize);

IppStatus ippsIIRGetStateSize64f_BiQuad_32f(int numBq, int* pBufferSize);

IppStatus ippsIIRGetStateSize_BiQuad_64f(int numBq, int* pBufferSize);

IppStatus ippsIIRGetStateSize_BiQuad_32fc(int numBq, int* pBufferSize);

IppStatus ippsIIRGetStateSize64fc_BiQuad_32fc(int numBq, int* pBufferSize);

IppStatus ippsIIRGetStateSize_BiQuad_64fc(int order, int* pBufferSize);

Parameters

numBq	Number of cascades of biquads.
pBufferSize	Pointer to the computed buffer size value.

Description

The function ippsIIRGetStateSize_BiQuad is declared in the ipps.h file. This function computes the size of the external buffer for a corresponding biquad IIR filter state, and stores the result in pBufferSize.

To compute a size of the buffer, the number of cascades of biquads numBq must be specified.

Return Values

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