mlib_VideoColorYUV2ABGR420_WX3(3MLIB) mediaLib Library Functions mlib_VideoColorYUV2ABGR420_WX3(3MLIB)
NAME
mlib_VideoColorYUV2ABGR420_WX3 - YUV to RGB color conversion
SYNOPSIS
cc [ flag... ] file... -lmlib [ library... ]
#include <mlib.h>
mlib_status mlib_VideoColorYUV2ABGR420_WX3(mlib_u8 *abgr,
const mlib_u8 *y,const mlib_u8 *u, const mlib_u8 *v,
mlib_s32 width, mlib_s32 height,
mlib_s32 abgr_stride, mlib_s32 y_stride,
mlib_s32 uv_stride, mlib_s32 left,
mlib_s32 top, mlib_s32 right, mlib_s32 bottom);
DESCRIPTION
The mlib_VideoColorYUV2ABGR420_WX3() function performs YUV to RGB color conversion used in MPEG1 and MPEG2 video compression in the 4:2:0
sequence. It performs color conversion together with window clipping and 3X zooming.
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 horizon-
tal and vertical directions in respect to the luminance component.
PARAMETERS
The function takes the following arguments:
abgr Pointer to the destination packed ABGR image. abgr must be 8-byte aligned.
y Pointer to the source Y component. y must be 8-byte aligned.
u Pointer to the source U component. u must be 4-byte aligned.
v Pointer to the source V component. v must be 4-byte aligned.
width Width of the image. width must be a multiple of 8.
height Height of the image. height must be a multiple of 2.
abgr_stride Stride, in bytes, between adjacent rows in the ABGR image. abgr_stride must be a multiple of 8.
y_stride Stride, in bytes, between adjacent rows in the Y component image. y_stride must be a multiple of 8.
uv_stride Stride, in bytes, between adjacent rows in the U and V component images. uv_stride must be a multiple of 8.
left Left border of clipping window. 0 <= left < right <= width.
top Top border of clipping window. 0 <= top < bottom <= height.
right Left border of clipping window. 0 <= left < right <= width.
bottom Bottom border of clipping window. 0 <= top < bottom <= height.
RETURN VALUES
The function returns MLIB_SUCCESS if successful. Otherwise it returns MLIB_FAILURE.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Interface Stability |Committed |
+-----------------------------+-----------------------------+
|MT-Level |MT-Safe |
+-----------------------------+-----------------------------+
SEE ALSO
mlib_VideoColorYUV2ABGR420_W(3MLIB), mlib_VideoColorYUV2ABGR420_WX2(3MLIB), mlib_VideoColorYUV2ABGR420_X2(3MLIB), mlib_VideoCol-
orYUV2ABGR420_X3(3MLIB), attributes(5)
SunOS 5.11 2 Mar 2007 mlib_VideoColorYUV2ABGR420_WX3(3MLIB)