mlib_VideoColorYUV2ABGR420mediaLib)Library mlib_VideoColorYUV2ABGR420_W(3MLIB)NAMEmlib_VideoColorYUV2ABGR420_W - YUV to RGB color conversion
SYNOPSIS
cc [ flag... ] file... -lmlib [ library... ]
#include <mlib.h>
mlib_status mlib_VideoColorYUV2ABGR420_W(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_W() 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.
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.
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 compo‐
nent 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 ALSOmlib_VideoColorYUV2ABGR420_WX2(3MLIB), mlib_VideoCol‐
orYUV2ABGR420_WX3(3MLIB), mlib_VideoColorYUV2ABGR420_X2(3MLIB),
mlib_VideoColorYUV2ABGR420_X3(3MLIB), attributes(5)SunOS 5.10 2 Mar 200mlib_VideoColorYUV2ABGR420_W(3MLIB)
