mlib_VideoColorJFIFYCC2RGB444_S16

- JFIF YCbCr to RGB color conversion

Synopsis

cc [ flag... ] file... -lmlib [ library... ]
#include <mlib.h>

mlib_status mlib_VideoColorJFIFYCC2RGB444_S16(mlib_s16 *rgb,
     const mlib_s16 *y, const mlib_s16 *cb,
     const mlib_s16 *cr, mlib_s32 n);

Description

The mlib_VideoColorJFIFYCC2RGB444_S16() function performs color space conversion from YCbCr to RGB when used in the JPEG File Interchange Format (JFIF).

Both the input YCbCr components and the output RGB components are supposed to be in the range of [0, 4095].

The following equation is used:

R = Y                         + 1.40200 * (Cr - 2048)
G = Y - 0.34414 * (Cb - 2048) - 0.71414 * (Cr - 2048)
B = Y + 1.77200 * (Cb - 2048)

Parameters

The function takes the following arguments:

rgb

Pointer to destination RGB multi-component row. rgb 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 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:

See Also

mlib_VideoColorJFIFYCC2ABGR444(3MLIB), mlib_VideoColorJFIFYCC2ARGB444(3MLIB), mlib_VideoColorJFIFYCC2RGB444(3MLIB), attributes(5)