1 .. -*- coding: utf-8; mode: rst -*-
3 .. _V4L2-PIX-FMT-YUV411P:
5 *****************************
6 V4L2_PIX_FMT_YUV411P ('411P')
7 *****************************
9 *man V4L2_PIX_FMT_YUV411P(2)*
11 Format with ¼ horizontal chroma resolution, also known as YUV 4:1:1.
12 Planar layout as opposed to ``V4L2_PIX_FMT_Y41P``
18 This format is not commonly used. This is a planar format similar to the
19 4:2:2 planar format except with half as many chroma. The three
20 components are separated into three sub-images or planes. The Y plane is
21 first. The Y plane has one byte per pixel. The Cb plane immediately
22 follows the Y plane in memory. The Cb plane is ¼ the width of the Y
23 plane (and of the image). Each Cb belongs to 4 pixels all on the same
24 row. For example, Cb\ :sub:`0` belongs to Y'\ :sub:`00`, Y'\ :sub:`01`,
25 Y'\ :sub:`02` and Y'\ :sub:`03`. Following the Cb plane is the Cr plane,
26 just like the Cb plane.
28 If the Y plane has pad bytes after each row, then the Cr and Cb planes
29 have ¼ as many pad bytes after their rows. In other words, four C x rows
30 (including padding) is exactly as long as one Y row (including padding).
33 Each cell is one byte.
139 **Color Sample Location..**