119 строки
1.9 KiB
ReStructuredText
119 строки
1.9 KiB
ReStructuredText
.. -*- coding: utf-8; mode: rst -*-
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.. _V4L2-PIX-FMT-YUYV:
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**************************
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V4L2_PIX_FMT_YUYV ('YUYV')
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**************************
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Packed format with ½ horizontal chroma resolution, also known as YUV
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4:2:2
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Description
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===========
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In this format each four bytes is two pixels. Each four bytes is two
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Y's, a Cb and a Cr. Each Y goes to one of the pixels, and the Cb and Cr
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belong to both pixels. As you can see, the Cr and Cb components have
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half the horizontal resolution of the Y component. ``V4L2_PIX_FMT_YUYV``
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is known in the Windows environment as YUY2.
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**Byte Order.**
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Each cell is one byte.
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.. flat-table::
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:header-rows: 0
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:stub-columns: 0
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* - start + 0:
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- Y'\ :sub:`00`
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- Cb\ :sub:`00`
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- Y'\ :sub:`01`
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- Cr\ :sub:`00`
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- Y'\ :sub:`02`
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- Cb\ :sub:`01`
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- Y'\ :sub:`03`
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- Cr\ :sub:`01`
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* - start + 8:
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- Y'\ :sub:`10`
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- Cb\ :sub:`10`
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- Y'\ :sub:`11`
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- Cr\ :sub:`10`
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- Y'\ :sub:`12`
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- Cb\ :sub:`11`
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- Y'\ :sub:`13`
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- Cr\ :sub:`11`
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* - start + 16:
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- Y'\ :sub:`20`
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- Cb\ :sub:`20`
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- Y'\ :sub:`21`
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- Cr\ :sub:`20`
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- Y'\ :sub:`22`
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- Cb\ :sub:`21`
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- Y'\ :sub:`23`
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- Cr\ :sub:`21`
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* - start + 24:
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- Y'\ :sub:`30`
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- Cb\ :sub:`30`
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- Y'\ :sub:`31`
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- Cr\ :sub:`30`
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- Y'\ :sub:`32`
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- Cb\ :sub:`31`
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- Y'\ :sub:`33`
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- Cr\ :sub:`31`
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**Color Sample Location..**
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.. flat-table::
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:header-rows: 0
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:stub-columns: 0
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* -
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- 0
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-
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- 1
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-
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- 2
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-
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- 3
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* - 0
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- Y
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- C
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- Y
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-
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- Y
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- C
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- Y
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* - 1
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- Y
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- C
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- Y
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-
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- Y
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- C
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- Y
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* - 2
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- Y
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- C
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- Y
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-
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- Y
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- C
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- Y
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* - 3
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- Y
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- C
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- Y
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-
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- Y
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- C
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- Y
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