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:

See Also

mlib_VideoColorJFIFYCC2ABGR444(3MLIB), mlib_VideoColorJFIFYCC2RGB444(3MLIB), mlib_VideoColorJFIFYCC2RGB444_S16(3MLIB), attributes(5)