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Man page of mlib_VideoColorRGB2JFIFYCC420
mlib_VideoColorRGB2JFIFYCC420
Section: mediaLib Library Functions (3MLIB)
Updated: 2 Mar 2007
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NAME
mlib_VideoColorRGB2JFIFYCC420 - RGB to JFIF YCbCr color conversion
SYNOPSIS
cc [ flag... ] file... -lmlib [ library... ]
#include <mlib.h>
mlib_status mlib_VideoColorRGB2JFIFYCC420(mlib_u8 *y0, mlib_u8 *y1,
mlib_u8 *cb, mlib_u8 *cr, const mlib_u8 *rgb0, const mlib_u8 *rgb1,
mlib_s32 n);
DESCRIPTION
The mlib_VideoColorRGB2JFIFYCC420() function performs color space conversion from RGB to YCbCr together with sampling rate conversion when used in the JPEG File Interchange Format (JFIF).
PARAMETERS
The function takes the following arguments:
y0
-
Pointer to upper destination Y component row. y0 must be 8-byte aligned.
y1
-
Pointer to lower destination Y component row. y1 must be 8-byte aligned.
cb
-
Pointer to destination Cb component row. cb must be 8-byte aligned.
cr
-
Pointer to destination Cr component row. cr must be 8-byte aligned.
rgb0
-
Pointer to upper source RGB multi-component row. rgb0 must be 8-byte aligned.
rgb1
-
Pointer to lower source RGB multi-component row. rgb1 must be 8-byte aligned.
n
-
Length of Y component row. n must be even. The length of Cb and Cr component rows must be n/2. The length of the RGB multi-component row must be 3*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_VideoColorABGR2JFIFYCC420(3MLIB),
mlib_VideoColorABGR2JFIFYCC422(3MLIB),
mlib_VideoColorARGB2JFIFYCC420(3MLIB),
mlib_VideoColorARGB2JFIFYCC422(3MLIB),
mlib_VideoColorRGB2JFIFYCC422(3MLIB),
attributes(5)
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- PARAMETERS
-
- RETURN VALUES
-
- ATTRIBUTES
-
- SEE ALSO
-
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