'\" te
.\" Copyright (c) 2007, Sun Microsystems, Inc.  All Rights Reserved 
.TH mlib_SignalADPCMInit 3MLIB "2 Mar 2007" "SunOS 5.11" "mediaLib Library Functions"
.SH NAME
mlib_SignalADPCMInit \- adaptive differential pulse code modulation (ADPCM)
.SH SYNOPSIS
.LP
.nf
cc [ \fIflag\fR... ] \fIfile\fR... \fB-lmlib\fR [ \fIlibrary\fR... ]
#include <mlib.h>

\fBmlib_status\fR \fBmlib_SignalADPCMInit\fR(\fBvoid **\fR\fIstate\fR);
.fi

.SH DESCRIPTION
.sp
.LP
The \fBmlib_SignalADPCMInit()\fR function creates the internal structure for the codec for functions that perform adaptive differential pulse code modulation (ADPCM) in compliance with the ITU (former CCITT) G.721, G.723, and G.726 specifications.
.SH PARAMETERS
.sp
.LP
The function takes the following arguments:
.sp
.ne 2
.mk
.na
\fB\fIstate\fR\fR
.ad
.RS 9n
.rt  
Internal structure of the codec.
.RE

.SH RETURN VALUES
.sp
.LP
The function 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_SignalADPCM2Bits2Linear\fR(3MLIB), \fBmlib_SignalADPCM3Bits2Linear\fR(3MLIB), \fBmlib_SignalADPCM4Bits2Linear\fR(3MLIB), \fBmlib_SignalADPCM5Bits2Linear\fR(3MLIB), \fBmlib_SignalADPCMFree\fR(3MLIB), \fBmlib_SignalLinear2ADPCM2Bits\fR(3MLIB), \fBmlib_SignalLinear2ADPCM3Bits\fR(3MLIB), \fBmlib_SignalLinear2ADPCM4Bits\fR(3MLIB), \fBmlib_SignalLinear2ADPCM5Bits\fR(3MLIB), \fBattributes\fR(5)