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Man page of mlib_VideoColorYUV2ABGR420_WX3
mlib_VideoColorYUV2ABGR420_WX3
Section: mediaLib Library Functions (3MLIB)
Updated: 2 Mar 2007
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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 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 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 |
|
SEE ALSO
mlib_VideoColorYUV2ABGR420_W(3MLIB), mlib_VideoColorYUV2ABGR420_WX2(3MLIB), mlib_VideoColorYUV2ABGR420_X2(3MLIB), mlib_VideoColorYUV2ABGR420_X3(3MLIB), attributes(5)
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- PARAMETERS
-
- RETURN VALUES
-
- ATTRIBUTES
-
- SEE ALSO
-
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