HighPassFilterGetDlyLine

Receives the parameters of delay line of high-pass filter.

Syntax

IppStatus ippsHighPassFilterGetDlyLine_AMRWB_16s(const IppsHighPassFilterState_AMRWB_16s* pState, Ipp16s* pDlyLine, Ipp32s order);

Parameters

pState	Pointer to the memory supplied for filtering.
pDlyLine	Pointer to the vector (6-element size for order 2, or 9-element size for order 3) containing the filter memory.
order	The order of high-pass filter; possible value is 2 or 3.

Description

The function ippsHighPassFilterGetDlyLine_AMRWB is declared in ippsc.h file. This function gets the parameters of the delay line of the high-pass filter structure. The layout of the returned filter memory is follows:

Yh₂,Yl₂, Yh₁, Yl₁, X₀, X₁ - for the high-pass filter of order 2.

Yh₃,Yl₃, Yh₂,Yl₂, Yh₁, Yl₁, X₀, X₁, X₂ - the high-pass filter of order 3 ,

where X_i - the memory of the FIR filter part, and Yh_i, Yl_i - the memories of the IIR filter part.

Return Values

ippStsNoErr	Indicates no error.
ippStsNullPtrErr	Indicates an error when one of the specified pointer is NULL.
ippStsSizeErr	Indicates an error when order is not equal 2 or 3.