Video for Linux Two API Specification: Revision 0.24
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# V4L2_PIX_FMT_YUYV ('YUYV')

## Name

`V4L2_PIX_FMT_YUYV` -- Packed format with ½ horizontal chroma resolution, also known as YUV 4:2:2

## Description

In this format each four bytes is two pixels. Each four bytes is two Y's, a Cb and a Cr. Each Y goes to one of the pixels, and the Cb and Cr belong to both pixels. As you can see, the Cr and Cb components have half the horizontal resolution of the Y component. `V4L2_PIX_FMT_YUYV` is known in the Windows environment as YUY2.

Example 2-1. `V4L2_PIX_FMT_YUYV` 4 × 4 pixel image

Byte Order. Each cell is one byte.

start + 0: | Y'00 | Cb00 | Y'01 | Cr00 | Y'02 | Cb01 | Y'03 | Cr01
start + 8: | Y'10 | Cb10 | Y'11 | Cr10 | Y'12 | Cb11 | Y'13 | Cr11
start + 16: | Y'20 | Cb20 | Y'21 | Cr20 | Y'22 | Cb21 | Y'23 | Cr21
start + 24: | Y'30 | Cb30 | Y'31 | Cr30 | Y'32 | Cb31 | Y'33 | Cr31

Color Sample Location.

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

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