Video for Linux Two API Specification: Revision 0.24
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# V4L2_PIX_FMT_YVU410 ('YVU9'), V4L2_PIX_FMT_YUV410 ('YUV9')

## Name

`V4L2_PIX_FMT_YVU410`, `V4L2_PIX_FMT_YUV410` -- Planar formats with ¼ horizontal and vertical chroma resolution, also known as YUV 4:1:0

## Description

These are planar formats, as opposed to a packed format. The three components are separated into three sub-images or planes. The Y plane is first. The Y plane has one byte per pixel. For `V4L2_PIX_FMT_YVU410`, the Cr plane immediately follows the Y plane in memory. The Cr plane is ¼ the width and ¼ the height of the Y plane (and of the image). Each Cr belongs to 16 pixels, a four-by-four square of the image. Following the Cr plane is the Cb plane, just like the Cr plane. `V4L2_PIX_FMT_YUV410` is the same, except the Cb plane comes first, then the Cr plane.

If the Y plane has pad bytes after each row, then the Cr and Cb planes have ¼ as many pad bytes after their rows. In other words, four Cx rows (including padding) are exactly as long as one Y row (including padding).

Example 2-1. `V4L2_PIX_FMT_YVU410` 4 × 4 pixel image

Byte Order. Each cell is one byte.

start + 0: | Y'00 | Y'01 | Y'02 | Y'03
start + 4: | Y'10 | Y'11 | Y'12 | Y'13
start + 8: | Y'20 | Y'21 | Y'22 | Y'23
start + 12: | Y'30 | Y'31 | Y'32 | Y'33
start + 16: | Cr00 |  |  |
start + 17: | Cb00 |  |  |

Color Sample Location.

| 0 |  | 1 |  | 2 |  | 3
0 | Y |  | Y |  | Y |  | Y
1 | Y |  | Y |  | Y |  | Y
|  |  |  | C |  |  |
2 | Y |  | Y |  | Y |  | Y
3 | Y |  | Y |  | Y |  | Y

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V4L2_PIX_FMT_YVU420 ('YV12'), V4L2_PIX_FMT_YUV420 ('YU12') | Up | V4L2_PIX_FMT_YUV422P ('422P')