'\" te
.\" Copyright (c) 2007, Sun Microsystems, Inc.  All Rights Reserved 
.TH mlib_VideoDCT16x16_S16_S16 3MLIB "2 Mar 2007" "SunOS 5.11" "mediaLib Library Functions"
.SH NAME
mlib_VideoDCT16x16_S16_S16 \- forward Discrete Cosine Transform (DCT)
.SH SYNOPSIS
.LP
.nf
cc [ \fIflag\fR... ] \fIfile\fR... \fB-lmlib\fR [ \fIlibrary\fR... ]
#include <mlib.h>

\fBmlib_status\fR \fBmlib_VideoDCT16x16_S16_S16\fR(\fBmlib_s16\fR \fIcoeffs[256]\fR,
    \fBconst mlib_s16\fR \fIblock[256]\fR);
.fi

.SH DESCRIPTION
.sp
.LP
The input to the DCT routine is the difference between the current block and the reference block. The difference pixel can occupy nine bits and is represented as a 16-bit datum. The source and destination buffer addresses must be 8-byte aligned.
.SH PARAMETERS
.sp
.LP
The function takes the following arguments:
.sp
.ne 2
.mk
.na
\fB\fIcoeffs\fR\fR
.ad
.RS 10n
.rt  
Pointer to the destination DCT coefficients. coeffs must be 8-byte aligned.
.RE

.sp
.ne 2
.mk
.na
\fB\fIblock\fR\fR
.ad
.RS 10n
.rt  
Pointer to an 16x16 motion-compensated block that is the difference between the reference block and the current block. block must be 8-byte aligned.
.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_VideoDCT2x2_S16_S16\fR(3MLIB), \fBmlib_VideoDCT4x4_S16_S16\fR(3MLIB), \fBmlib_VideoDCT8x8_S16_S16\fR(3MLIB), \fBmlib_VideoDCT8x8_S16_S16_B12\fR(3MLIB), \fBmlib_VideoDCT8x8_S16_S16_NA\fR(3MLIB), \fBmlib_VideoDCT8x8_S16_U8\fR(3MLIB), \fBmlib_VideoDCT8x8_S16_U8_NA\fR(3MLIB), mlib_VideoDCT16x16_S16_S16(3MLIB), \fBmlib_VideoDCT16x16_S16_S16_B10\fR(3MLIB), \fBmlib_VideoDeQuantize_S16\fR(3MLIB), \fBmlib_VideoDeQuantizeInit_S16\fR(3MLIB), \fBmlib_VideoQuantize_S16\fR(3MLIB), \fBmlib_VideoQuantizeInit_S16\fR(3MLIB), \fBattributes\fR(5)