'\" te
.\" Copyright (c) 2007, Sun Microsystems, Inc.  All Rights Reserved 
.TH mlib_VideoColorYUV2RGB420 3MLIB "2 Mar 2007" "SunOS 5.11" "mediaLib Library Functions"
.SH NAME
mlib_VideoColorYUV2RGB420 \- YUV to RGB color conversion
.SH SYNOPSIS
.LP
.nf
cc [ \fIflag\fR... ] \fIfile\fR... \fB-lmlib\fR [ \fIlibrary\fR... ]
#include <mlib.h>

\fBmlib_status\fR \fBmlib_VideoColorYUV2RGB420\fR(\fBmlib_u8 *\fR\fIrgb\fR, \fBconst mlib_u8 *\fR\fIy\fR,
     \fBconst mlib_u8 *\fR\fIu\fR, \fBconst mlib_u8 *\fR\fIv\fR, \fBmlib_s32\fR \fIwidth\fR, \fBmlib_s32\fR \fIheight\fR,
     \fBmlib_s32\fR \fIrgb_stride\fR, \fBmlib_s32\fR \fIy_stride\fR, \fBmlib_s32\fR \fIuv_stride\fR);
.fi

.SH DESCRIPTION
.sp
.LP
The \fBmlib_VideoColorYUV2RGB420()\fR function performs YUV to RGB color conversion used in MPEG1 and MPEG2 video compression in the 4:2:0 sequence.
.sp
.LP
The luminance component is stored in Y, the chrominance components are stored in U and V, respectively. The size of the chrominance image depends on the chroma format used by the sequence. In this sequence, the chrominance components are subsampled 2-to-1 in both the horizontal and vertical directions in respect to the luminance component.
.SH PARAMETERS
.sp
.LP
The function takes the following arguments:
.sp
.ne 2
.mk
.na
\fB\fIrgb\fR\fR
.ad
.RS 14n
.rt  
Pointer to the destination RGB image.
.RE

.sp
.ne 2
.mk
.na
\fB\fIy\fR\fR
.ad
.RS 14n
.rt  
Pointer to the source Y component.
.RE

.sp
.ne 2
.mk
.na
\fB\fIu\fR\fR
.ad
.RS 14n
.rt  
Pointer to the source U component.
.RE

.sp
.ne 2
.mk
.na
\fB\fIv\fR\fR
.ad
.RS 14n
.rt  
Pointer to the source V component.
.RE

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

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

.sp
.ne 2
.mk
.na
\fB\fIrgb_stride\fR\fR
.ad
.RS 14n
.rt  
Stride, in bytes, between adjacent rows in the destination image.
.RE

.sp
.ne 2
.mk
.na
\fB\fIy_stride\fR\fR
.ad
.RS 14n
.rt  
Stride, in bytes, between adjacent rows in the Y component image.
.RE

.sp
.ne 2
.mk
.na
\fB\fIuv_stride\fR\fR
.ad
.RS 14n
.rt  
Stride, in bytes, between adjacent rows in the U and V component images.
.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_VideoColorYUV2ABGR411\fR(3MLIB), \fBmlib_VideoColorYUV2ABGR420\fR(3MLIB), \fBmlib_VideoColorYUV2ABGR422\fR(3MLIB), \fBmlib_VideoColorYUV2ABGR444\fR(3MLIB), \fBmlib_VideoColorYUV2ARGB411\fR(3MLIB), \fBmlib_VideoColorYUV2ARGB420\fR(3MLIB), \fBmlib_VideoColorYUV2ARGB422\fR(3MLIB), \fBmlib_VideoColorYUV2ARGB444\fR(3MLIB), \fBmlib_VideoColorYUV2RGB411\fR(3MLIB), \fBmlib_VideoColorYUV2RGB422\fR(3MLIB), \fBmlib_VideoColorYUV2RGB444\fR(3MLIB), \fBattributes\fR(5)