mlib_VideoColorYUV2RGB420

- YUV to RGB color conversion

Synopsis

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

mlib_status mlib_VideoColorYUV2RGB420(mlib_u8 *rgb, const mlib_u8 *y,
     const mlib_u8 *u, const mlib_u8 *v, mlib_s32 width, mlib_s32 height,
     mlib_s32 rgb_stride, mlib_s32 y_stride, mlib_s32 uv_stride);

Description

The mlib_VideoColorYUV2RGB420() function performs YUV to RGB color conversion used in MPEG1 and MPEG2 video compression in the 4:2:0 sequence.

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:

rgb

Pointer to the destination RGB image.

y

Pointer to the source Y component.

u

Pointer to the source U component.

v

Pointer to the source V component.

width

Width of the image.

height

Height of the image.

rgb_stride

Stride, in bytes, between adjacent rows in the destination image.

y_stride

Stride, in bytes, between adjacent rows in the Y component image.

uv_stride

Stride, in bytes, between adjacent rows in the U and V component images.

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_VideoColorYUV2ABGR411(3MLIB), mlib_VideoColorYUV2ABGR420(3MLIB), mlib_VideoColorYUV2ABGR422(3MLIB), mlib_VideoColorYUV2ABGR444(3MLIB), mlib_VideoColorYUV2ARGB411(3MLIB), mlib_VideoColorYUV2ARGB420(3MLIB), mlib_VideoColorYUV2ARGB422(3MLIB), mlib_VideoColorYUV2ARGB444(3MLIB), mlib_VideoColorYUV2RGB411(3MLIB), mlib_VideoColorYUV2RGB422(3MLIB), mlib_VideoColorYUV2RGB444(3MLIB), attributes(5)