The functions described in this section perform a finite impulse response (FIR) filtering of input data. The functions initialize different FIR filter structures, get and set the delay lines and filter coefficients (taps), and perform filtering. Intel IPP contains the functions that implement the FIR filters without the delay line - stream FIR filters.

Special set of functions allows to compute the filter coefficients for different filters.

To perform single-rate FIR filtering with the

ippsFIRSR

function, follow this scheme:

Call
ippsFIRSRGetSize
function to get the size of the filter specification structure and the work buffer.
Call
ippsFIRSRInit
function to initialize the filter specification structure.
Call
ippsFIRSR
function to apply the single-rate FIR filter to a source vector.