'\" te
.\" Copyright (c) 2007, Sun Microsystems, Inc.  All Rights Reserved 
.TH mlib_SignalIIRInit_P4_S16_S16 3MLIB "2 Mar 2007" "SunOS 5.11" "mediaLib Library Functions"
.SH NAME
mlib_SignalIIRInit_P4_S16_S16, mlib_SignalIIRInit_P4_S16S_S16S \- parallel Infinite Impulse Response (IIR) filtering
.SH SYNOPSIS
.LP
.nf
cc [ \fIflag\fR... ] \fIfile\fR... \fB-lmlib\fR [ \fIlibrary\fR... ]
#include <mlib.h>

\fBmlib_status\fR \fBmlib_SignalIIRInit_P4_S16_S16\fR(\fBvoid **\fR\fIfilter\fR,
     \fBconst mlib_f32\fR \fIflt\fR);
.fi

.LP
.nf
\fBmlib_status\fR \fBmlib_SignalIIRInit_P4_S16S_S16S\fR(\fBvoid **\fR\fIfilter\fR,
     \fBconst mlib_f32\fR \fIflt\fR);
.fi

.SH DESCRIPTION
.sp
.LP
Each of these functions allocates memory for the internal filter structure and converts the filter coefficients to an internal representation.
.SH PARAMETERS
.sp
.LP
Each of the functions takes the following arguments:
.sp
.ne 2
.mk
.na
\fB\fIfilter\fR\fR
.ad
.RS 10n
.rt  
Internal filter structure.
.RE

.sp
.ne 2
.mk
.na
\fB\fIflt\fR\fR
.ad
.RS 10n
.rt  
Array of nine filter coefficients: c, a00, a10, b10, b20, a01, a11, b11, and b21.
.RE

.SH RETURN VALUES
.sp
.LP
Each of the functions returns \fBMLIB_SUCCESS\fR if successful. Otherwise it returns \fBMLIB_FAILURE\fR.
.SH ATTRIBUTES
.sp
.LP
See \fBattributes\fR(5) for descriptions of the following attributes:
.sp

.sp
.TS
tab() box;
cw(2.75i) |cw(2.75i) 
lw(2.75i) |lw(2.75i) 
.
ATTRIBUTE TYPEATTRIBUTE VALUE
_
Interface StabilityCommitted
_
MT-LevelMT-Safe
.TE

.SH SEE ALSO
.sp
.LP
\fBmlib_SignalIIR_Biquad_S16_S16_Sat\fR(3MLIB), \fBmlib_SignalIIR_P4_S16_S16_Sat\fR(3MLIB), \fBmlib_SignalIIRFree_Biquad_S16_S16\fR(3MLIB), \fBmlib_SignalIIRFree_P4_S16_S16\fR(3MLIB), \fBmlib_SignalIIRInit_Biquad_S16_S16\fR(3MLIB), \fBattributes\fR(5)