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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-10-20 00:10:27 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-10-20 00:10:27 -0300
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tree7fee4ab0509879c373c4f2cbd5b8a5be5b4041ee /Documentation/media/uapi/v4l/yuv-formats.rst
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+.. -*- coding: utf-8; mode: rst -*-
+
+.. _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-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