'\" te
.\" Copyright (c) 2007, Sun Microsystems, Inc.  All Rights Reserved 
.TH mlib_VideoColorJFIFYCC2ARGB444 3MLIB "23 May 2007" "SunOS 5.11" "mediaLib Library Functions"
.SH NAME
mlib_VideoColorJFIFYCC2ARGB444 \- JFIF YCbCr to ARGB color conversion
.SH SYNOPSIS
.LP
.nf
cc [ \fIflag\fR... ] \fIfile\fR... \fB-lmlib\fR [ \fIlibrary\fR... ]
#include <mlib.h>

\fBmlib_status\fR \fBmlib_VideoColorJFIFYCC2ARGB444\fR(\fBmlib_u8 *\fR\fIargb\fR,
     \fBconst mlib_u8 *\fR\fIy\fR, \fBconst mlib_u8 *\fR\fIcb\fR,
     \fBconst mlib_u8 *\fR\fIcr\fR, \fBmlib_s32\fR \fIn\fR);
.fi

.SH DESCRIPTION
.sp
.LP
The \fBmlib_VideoColorJFIFYCC2ARGB444()\fR function performs color space conversion from YCbCr to ARGB when used in the JPEG File Interchange Format (JFIF).
.sp
.LP
The following equation is used:
.sp
.in +2
.nf
A = 0xFF
R = Y                        + 1.40200 * (Cr - 128)
G = Y - 0.34414 * (Cb - 128) - 0.71414 * (Cr - 128)
B = Y + 1.77200 * (Cb - 128)
.fi
.in -2

.SH PARAMETERS
.sp
.LP
The function takes the following arguments:
.sp
.ne 2
.mk
.na
\fB\fIargb\fR\fR
.ad
.RS 8n
.rt  
Pointer to destination ARGB multi-component row. argb must be 8-byte aligned.
.RE

.sp
.ne 2
.mk
.na
\fB\fIy\fR\fR
.ad
.RS 8n
.rt  
Pointer to source Y component row. y must be 8-byte aligned.
.RE

.sp
.ne 2
.mk
.na
\fB\fIcb\fR\fR
.ad
.RS 8n
.rt  
Pointer to source Cb component row. cb must be 8-byte aligned.
.RE

.sp
.ne 2
.mk
.na
\fB\fIcr\fR\fR
.ad
.RS 8n
.rt  
Pointer to source Cr component row. cr must be 8-byte aligned.
.RE

.sp
.ne 2
.mk
.na
\fB\fIn\fR\fR
.ad
.RS 8n
.rt  
Length of Y component row. The length of Cb and Cr component rows must be n. The length of the ARGB multi-component row must be 4*n.
.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_VideoColorJFIFYCC2ABGR444\fR(3MLIB), \fBmlib_VideoColorJFIFYCC2RGB444\fR(3MLIB), \fBmlib_VideoColorJFIFYCC2RGB444_S16\fR(3MLIB), \fBattributes\fR(5)