'\" te
.\" Copyright (c) 2007, Sun Microsystems, Inc.  All Rights Reserved 
.TH mlib_VideoInterpAveX_U8_U8 3MLIB "2 Mar 2007" "SunOS 5.11" "mediaLib Library Functions"
.SH NAME
mlib_VideoInterpAveX_U8_U8 \- half-pixel interpolation in the X direction and averaging for reference block
.SH SYNOPSIS
.LP
.nf
cc [ \fIflag\fR... ] \fIfile\fR... \fB-lmlib\fR [ \fIlibrary\fR... ]
#include <mlib.h>

\fBmlib_status\fR \fBmlib_VideoInterpAveX_U8_U8\fR(\fBmlib_u8 *\fR\fIcurr_block\fR,
     \fBconst mlib_u8 *\fR\fIref_block\fR, \fBmlib_s32\fR \fIwidth\fR, \fBmlib_s32\fR \fIheight\fR,
     \fBmlib_s32\fR \fIfrm_stride\fR, \fBmlib_s32\fR \fIfld_stride\fR);
.fi

.SH DESCRIPTION
.sp
.LP
The \fBmlib_VideoInterpAveX_U8_U8()\fR function performs half-pixel interpolation in the X direction and averaging for a reference block of data type mlib_u8 and a current block of data type mlib_u8. The stride applies to both the input reference block and the current block.
.SH PARAMETERS
.sp
.LP
The function takes the following arguments:
.sp
.ne 2
.mk
.na
\fB\fIcurr_block\fR\fR
.ad
.RS 14n
.rt  
Pointer to the current block. curr_block must be 8-byte aligned.
.RE

.sp
.ne 2
.mk
.na
\fB\fIref_block\fR\fR
.ad
.RS 14n
.rt  
Pointer to the reference block.
.RE

.sp
.ne 2
.mk
.na
\fB\fIwidth\fR\fR
.ad
.RS 14n
.rt  
Width of the blocks.
.RE

.sp
.ne 2
.mk
.na
\fB\fIheight\fR\fR
.ad
.RS 14n
.rt  
Height of the blocks.
.RE

.sp
.ne 2
.mk
.na
\fB\fIfrm_stride\fR\fR
.ad
.RS 14n
.rt  
Stride, in bytes, between adjacent rows in a frame in both the current block and the reference block. frm_stride must be a multiple of eight.
.RE

.sp
.ne 2
.mk
.na
\fB\fIfld_stride\fR\fR
.ad
.RS 14n
.rt  
Stride, in bytes, between adjacent rows in a field in both the current block and reference block. fld_stride must be a multiple of eight.
.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_VideoAddBlock_U8_S16\fR(3MLIB), \fBmlib_VideoCopyRef_S16_U8\fR(3MLIB), \fBmlib_VideoCopyRef_S16_U8_16x16\fR(3MLIB), \fBmlib_VideoCopyRef_U8_U8\fR(3MLIB), \fBmlib_VideoCopyRef_U8_U8_16x16\fR(3MLIB), \fBmlib_VideoCopyRefAve_U8_U8\fR(3MLIB), \fBmlib_VideoCopyRefAve_U8_U8_16x16\fR(3MLIB), \fBmlib_VideoH263OverlappedMC_S16_U8\fR(3MLIB), \fBmlib_VideoH263OverlappedMC_U8_U8\fR(3MLIB), \fBmlib_VideoInterpAveX_U8_U8_16x16\fR(3MLIB), \fBmlib_VideoInterpAveXY_U8_U8\fR(3MLIB), \fBmlib_VideoInterpAveXY_U8_U8_16x16\fR(3MLIB), \fBmlib_VideoInterpAveY_U8_U8\fR(3MLIB), \fBmlib_VideoInterpAveY_U8_U8_16x16\fR(3MLIB), \fBmlib_VideoInterpX_S16_U8\fR(3MLIB), \fBmlib_VideoInterpX_S16_U8_16x16\fR(3MLIB), \fBmlib_VideoInterpX_U8_U8\fR(3MLIB), \fBmlib_VideoInterpXY_S16_U8\fR(3MLIB), \fBmlib_VideoInterpXY_S16_U8_16x16\fR(3MLIB), \fBmlib_VideoInterpXY_U8_U8\fR(3MLIB), \fBmlib_VideoInterpXY_U8_U8_16x16\fR(3MLIB), \fBmlib_VideoInterpY_S16_U8\fR(3MLIB), \fBmlib_VideoInterpY_S16_U8_16x16\fR(3MLIB), \fBmlib_VideoInterpY_U8_U8\fR(3MLIB), \fBmlib_VideoInterpY_U8_U8_16x16\fR(3MLIB), \fBmlib_VideoP64Decimate_U8_U8\fR(3MLIB), \fBmlib_VideoP64Loop_S16_U8\fR(3MLIB), \fBmlib_VideoP64Loop_U8_U8\fR(3MLIB), \fBattributes\fR(5)