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Man page of mlib_VideoColorJFIFYCC2ARGB444
mlib_VideoColorJFIFYCC2ARGB444
Section: mediaLib Library Functions (3MLIB)
Updated: 23 May 2007
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NAME
mlib_VideoColorJFIFYCC2ARGB444 - JFIF YCbCr to ARGB color conversion
SYNOPSIS
cc [ flag... ] file... -lmlib [ library... ]
#include <mlib.h>
mlib_status mlib_VideoColorJFIFYCC2ARGB444(mlib_u8 *argb,
const mlib_u8 *y, const mlib_u8 *cb,
const mlib_u8 *cr, mlib_s32 n);
DESCRIPTION
The mlib_VideoColorJFIFYCC2ARGB444() function performs color space conversion from YCbCr to ARGB when used in the JPEG File Interchange Format (JFIF).
The following equation is used:
A = 0xFF
R = Y + 1.40200 * (Cr - 128)
G = Y - 0.34414 * (Cb - 128) - 0.71414 * (Cr - 128)
B = Y + 1.77200 * (Cb - 128)
PARAMETERS
The function takes the following arguments:
argb
-
Pointer to destination ARGB multi-component row. argb must be 8-byte aligned.
y
-
Pointer to source Y component row. y must be 8-byte aligned.
cb
-
Pointer to source Cb component row. cb must be 8-byte aligned.
cr
-
Pointer to source Cr component row. cr must be 8-byte aligned.
n
-
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.
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_VideoColorJFIFYCC2ABGR444(3MLIB), mlib_VideoColorJFIFYCC2RGB444(3MLIB), mlib_VideoColorJFIFYCC2RGB444_S16(3MLIB), attributes(5)
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- PARAMETERS
-
- RETURN VALUES
-
- ATTRIBUTES
-
- SEE ALSO
-
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