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.. Permission is granted to copy, distribute and/or modify this
.. document under the terms of the GNU Free Documentation License,
.. Version 1.1 or any later version published by the Free Software
.. Foundation, with no Invariant Sections, no Front-Cover Texts
.. and no Back-Cover Texts. A copy of the license is included at
.. Documentation/media/uapi/fdl-appendix.rst.
..
.. TODO: replace it to GFDL-1.1-or-later WITH no-invariant-sections
.. _yuv-formats:
***********
YUV Formats
***********
YUV is the format native to TV broadcast and composite video signals. It
separates the brightness information (Y) from the color information (U
and V or Cb and Cr). The color information consists of red and blue
*color difference* signals, this way the green component can be
reconstructed by subtracting from the brightness component. See
:ref:`colorspaces` for conversion examples. YUV was chosen because
early television would only transmit brightness information. To add
color in a way compatible with existing receivers a new signal carrier
was added to transmit the color difference signals. Secondary in the YUV
format the U and V components usually have lower resolution than the Y
component. This is an analog video compression technique taking
advantage of a property of the human visual system, being more sensitive
to brightness information.
.. toctree::
:maxdepth: 1
pixfmt-packed-yuv
pixfmt-grey
pixfmt-y10
pixfmt-y12
pixfmt-y10b
pixfmt-y10p
pixfmt-y16
pixfmt-y16-be
pixfmt-y8i
pixfmt-y12i
pixfmt-uv8
pixfmt-yuyv
pixfmt-uyvy
pixfmt-yvyu
pixfmt-vyuy
pixfmt-y41p
pixfmt-yuv420
pixfmt-yuv420m
pixfmt-yuv422m
pixfmt-yuv444m
pixfmt-yuv410
pixfmt-yuv422p
pixfmt-yuv411p
pixfmt-nv12
pixfmt-nv12m
pixfmt-nv12mt
pixfmt-nv16
pixfmt-nv16m
pixfmt-nv24
pixfmt-m420
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