199 lines
3.6 KiB
ReStructuredText
Executable file
199 lines
3.6 KiB
ReStructuredText
Executable file
.. -*- coding: utf-8; mode: rst -*-
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.. _packed-yuv:
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******************
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Packed YUV formats
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******************
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Description
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===========
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Similar to the packed RGB formats these formats store the Y, Cb and Cr
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component of each pixel in one 16 or 32 bit word.
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.. raw:: latex
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\begingroup
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\tiny
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\setlength{\tabcolsep}{2pt}
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.. _packed-yuv-formats:
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.. tabularcolumns:: |p{2.0cm}|p{0.67cm}|p{0.29cm}|p{0.29cm}|p{0.29cm}|p{0.29cm}|p{0.29cm}|p{0.29cm}|p{0.29cm}|p{0.29cm}|p{0.29cm}|p{0.29cm}|p{0.29cm}|p{0.29cm}|p{0.29cm}|p{0.29cm}|p{0.29cm}|p{0.29cm}|p{0.29cm}|p{0.29cm}|p{0.29cm}|p{0.29cm}|p{0.29cm}|p{0.29cm}|p{0.29cm}|p{0.29cm}|p{0.29cm}|p{0.29cm}|p{0.29cm}|p{0.29cm}|p{0.29cm}|p{0.29cm}|p{0.29cm}|p{0.29cm}|
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.. flat-table:: Packed YUV Image Formats
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:header-rows: 2
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:stub-columns: 0
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* - Identifier
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- Code
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- :cspan:`7` Byte 0 in memory
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- :cspan:`7` Byte 1
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- :cspan:`7` Byte 2
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- :cspan:`7` Byte 3
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* -
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-
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- 7
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- 6
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- 5
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- 4
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- 3
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- 2
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- 1
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- 0
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- 7
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- 6
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- 5
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- 4
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- 3
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- 2
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- 1
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- 0
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- 7
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- 6
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- 5
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- 4
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- 3
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- 2
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- 1
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- 0
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- 7
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- 6
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- 5
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- 4
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- 3
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- 2
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- 1
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- 0
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* .. _V4L2-PIX-FMT-YUV444:
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- ``V4L2_PIX_FMT_YUV444``
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- 'Y444'
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- Cb\ :sub:`3`
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- Cb\ :sub:`2`
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- Cb\ :sub:`1`
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- Cb\ :sub:`0`
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- Cr\ :sub:`3`
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- Cr\ :sub:`2`
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- Cr\ :sub:`1`
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- Cr\ :sub:`0`
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- a\ :sub:`3`
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- a\ :sub:`2`
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- a\ :sub:`1`
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- a\ :sub:`0`
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- Y'\ :sub:`3`
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- Y'\ :sub:`2`
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- Y'\ :sub:`1`
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- Y'\ :sub:`0`
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-
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* .. _V4L2-PIX-FMT-YUV555:
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- ``V4L2_PIX_FMT_YUV555``
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- 'YUVO'
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- Cb\ :sub:`2`
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- Cb\ :sub:`1`
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- Cb\ :sub:`0`
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- Cr\ :sub:`4`
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- Cr\ :sub:`3`
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- Cr\ :sub:`2`
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- Cr\ :sub:`1`
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- Cr\ :sub:`0`
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- a
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- Y'\ :sub:`4`
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- Y'\ :sub:`3`
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- Y'\ :sub:`2`
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- Y'\ :sub:`1`
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- Y'\ :sub:`0`
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- Cb\ :sub:`4`
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- Cb\ :sub:`3`
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-
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* .. _V4L2-PIX-FMT-YUV565:
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- ``V4L2_PIX_FMT_YUV565``
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- 'YUVP'
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- Cb\ :sub:`2`
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- Cb\ :sub:`1`
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- Cb\ :sub:`0`
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- Cr\ :sub:`4`
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- Cr\ :sub:`3`
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- Cr\ :sub:`2`
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- Cr\ :sub:`1`
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- Cr\ :sub:`0`
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- Y'\ :sub:`4`
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- Y'\ :sub:`3`
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- Y'\ :sub:`2`
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- Y'\ :sub:`1`
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- Y'\ :sub:`0`
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- Cb\ :sub:`5`
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- Cb\ :sub:`4`
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- Cb\ :sub:`3`
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-
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* .. _V4L2-PIX-FMT-YUV32:
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- ``V4L2_PIX_FMT_YUV32``
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- 'YUV4'
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- a\ :sub:`7`
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- a\ :sub:`6`
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- a\ :sub:`5`
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- a\ :sub:`4`
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- a\ :sub:`3`
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- a\ :sub:`2`
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- a\ :sub:`1`
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- a\ :sub:`0`
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- Y'\ :sub:`7`
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- Y'\ :sub:`6`
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- Y'\ :sub:`5`
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- Y'\ :sub:`4`
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- Y'\ :sub:`3`
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- Y'\ :sub:`2`
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- Y'\ :sub:`1`
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- Y'\ :sub:`0`
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- Cb\ :sub:`7`
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- Cb\ :sub:`6`
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- Cb\ :sub:`5`
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- Cb\ :sub:`4`
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- Cb\ :sub:`3`
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- Cb\ :sub:`2`
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- Cb\ :sub:`1`
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- Cb\ :sub:`0`
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- Cr\ :sub:`7`
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- Cr\ :sub:`6`
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- Cr\ :sub:`5`
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- Cr\ :sub:`4`
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- Cr\ :sub:`3`
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- Cr\ :sub:`2`
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- Cr\ :sub:`1`
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- Cr\ :sub:`0`
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.. raw:: latex
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\endgroup
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.. note::
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#) Bit 7 is the most significant bit;
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#) The value of a = alpha bits is undefined when reading from the driver,
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ignored when writing to the driver, except when alpha blending has
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been negotiated for a :ref:`Video Overlay <overlay>` or
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:ref:`Video Output Overlay <osd>`.
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