1 .. Permission is granted to copy, distribute and/or modify this
2 .. document under the terms of the GNU Free Documentation License,
3 .. Version 1.1 or any later version published by the Free Software
4 .. Foundation, with no Invariant Sections, no Front-Cover Texts
5 .. and no Back-Cover Texts. A copy of the license is included at
6 .. Documentation/media/uapi/fdl-appendix.rst.
8 .. TODO: replace it to GFDL-1.1-or-later WITH no-invariant-sections
10 .. _V4L2-PIX-FMT-YUV411P:
12 *****************************
13 V4L2_PIX_FMT_YUV411P ('411P')
14 *****************************
17 Format with ¼ horizontal chroma resolution, also known as YUV 4:1:1.
18 Planar layout as opposed to ``V4L2_PIX_FMT_Y41P``
24 This format is not commonly used. This is a planar format similar to the
25 4:2:2 planar format except with half as many chroma. The three
26 components are separated into three sub-images or planes. The Y plane is
27 first. The Y plane has one byte per pixel. The Cb plane immediately
28 follows the Y plane in memory. The Cb plane is ¼ the width of the Y
29 plane (and of the image). Each Cb belongs to 4 pixels all on the same
30 row. For example, Cb\ :sub:`0` belongs to Y'\ :sub:`00`, Y'\ :sub:`01`,
31 Y'\ :sub:`02` and Y'\ :sub:`03`. Following the Cb plane is the Cr plane,
32 just like the Cb plane.
34 If the Y plane has pad bytes after each row, then the Cr and Cb planes
35 have ¼ as many pad bytes after their rows. In other words, four C x rows
36 (including padding) is exactly as long as one Y row (including padding).
39 Each cell is one byte.
85 **Color Sample Location:**