From 849369d6c66d3054688672f97d31fceb8e8230fb Mon Sep 17 00:00:00 2001
From: root <root@artemis.panaceas.org>
Date: Fri, 25 Dec 2015 04:40:36 +0000
Subject: initial_commit

---
 Documentation/DocBook/v4l/pixfmt-yuyv.xml | 128 ++++++++++++++++++++++++++++++
 1 file changed, 128 insertions(+)
 create mode 100644 Documentation/DocBook/v4l/pixfmt-yuyv.xml

(limited to 'Documentation/DocBook/v4l/pixfmt-yuyv.xml')

diff --git a/Documentation/DocBook/v4l/pixfmt-yuyv.xml b/Documentation/DocBook/v4l/pixfmt-yuyv.xml
new file mode 100644
index 00000000..bdb2ffac
--- /dev/null
+++ b/Documentation/DocBook/v4l/pixfmt-yuyv.xml
@@ -0,0 +1,128 @@
+    <refentry id="V4L2-PIX-FMT-YUYV">
+      <refmeta>
+	<refentrytitle>V4L2_PIX_FMT_YUYV ('YUYV')</refentrytitle>
+	&manvol;
+      </refmeta>
+      <refnamediv>
+	<refname><constant>V4L2_PIX_FMT_YUYV</constant></refname>
+	<refpurpose>Packed format with &frac12; horizontal chroma
+resolution, also known as YUV 4:2:2</refpurpose>
+      </refnamediv>
+      <refsect1>
+	<title>Description</title>
+
+	<para>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.
+<constant>V4L2_PIX_FMT_YUYV </constant> is known in the Windows
+environment as YUY2.</para>
+
+	<example>
+	  <title><constant>V4L2_PIX_FMT_YUYV</constant> 4 &times; 4
+pixel image</title>
+
+	  <formalpara>
+	    <title>Byte Order.</title>
+	    <para>Each cell is one byte.
+		<informaltable frame="none">
+		<tgroup cols="9" align="center">
+		  <colspec align="left" colwidth="2*" />
+		  <tbody valign="top">
+		    <row>
+		      <entry>start&nbsp;+&nbsp;0:</entry>
+		      <entry>Y'<subscript>00</subscript></entry>
+		      <entry>Cb<subscript>00</subscript></entry>
+		      <entry>Y'<subscript>01</subscript></entry>
+		      <entry>Cr<subscript>00</subscript></entry>
+		      <entry>Y'<subscript>02</subscript></entry>
+		      <entry>Cb<subscript>01</subscript></entry>
+		      <entry>Y'<subscript>03</subscript></entry>
+		      <entry>Cr<subscript>01</subscript></entry>
+		    </row>
+		    <row>
+		      <entry>start&nbsp;+&nbsp;8:</entry>
+		      <entry>Y'<subscript>10</subscript></entry>
+		      <entry>Cb<subscript>10</subscript></entry>
+		      <entry>Y'<subscript>11</subscript></entry>
+		      <entry>Cr<subscript>10</subscript></entry>
+		      <entry>Y'<subscript>12</subscript></entry>
+		      <entry>Cb<subscript>11</subscript></entry>
+		      <entry>Y'<subscript>13</subscript></entry>
+		      <entry>Cr<subscript>11</subscript></entry>
+		    </row>
+		    <row>
+		      <entry>start&nbsp;+&nbsp;16:</entry>
+		      <entry>Y'<subscript>20</subscript></entry>
+		      <entry>Cb<subscript>20</subscript></entry>
+		      <entry>Y'<subscript>21</subscript></entry>
+		      <entry>Cr<subscript>20</subscript></entry>
+		      <entry>Y'<subscript>22</subscript></entry>
+		      <entry>Cb<subscript>21</subscript></entry>
+		      <entry>Y'<subscript>23</subscript></entry>
+		      <entry>Cr<subscript>21</subscript></entry>
+		    </row>
+		    <row>
+		      <entry>start&nbsp;+&nbsp;24:</entry>
+		      <entry>Y'<subscript>30</subscript></entry>
+		      <entry>Cb<subscript>30</subscript></entry>
+		      <entry>Y'<subscript>31</subscript></entry>
+		      <entry>Cr<subscript>30</subscript></entry>
+		      <entry>Y'<subscript>32</subscript></entry>
+		      <entry>Cb<subscript>31</subscript></entry>
+		      <entry>Y'<subscript>33</subscript></entry>
+		      <entry>Cr<subscript>31</subscript></entry>
+		    </row>
+		  </tbody>
+		</tgroup>
+		</informaltable>
+	      </para>
+	  </formalpara>
+
+	  <formalpara>
+	    <title>Color Sample Location.</title>
+	    <para>
+		<informaltable frame="none">
+		<tgroup cols="7" align="center">
+		  <tbody valign="top">
+		    <row>
+		      <entry></entry>
+		      <entry>0</entry><entry></entry><entry>1</entry><entry></entry>
+		      <entry>2</entry><entry></entry><entry>3</entry>
+		    </row>
+		    <row>
+		      <entry>0</entry>
+		      <entry>Y</entry><entry>C</entry><entry>Y</entry><entry></entry>
+		      <entry>Y</entry><entry>C</entry><entry>Y</entry>
+		    </row>
+		    <row>
+		      <entry>1</entry>
+		      <entry>Y</entry><entry>C</entry><entry>Y</entry><entry></entry>
+		      <entry>Y</entry><entry>C</entry><entry>Y</entry>
+		    </row>
+		    <row>
+		      <entry>2</entry>
+		      <entry>Y</entry><entry>C</entry><entry>Y</entry><entry></entry>
+		      <entry>Y</entry><entry>C</entry><entry>Y</entry>
+		    </row>
+		    <row>
+		      <entry>3</entry>
+		      <entry>Y</entry><entry>C</entry><entry>Y</entry><entry></entry>
+		      <entry>Y</entry><entry>C</entry><entry>Y</entry>
+		    </row>
+		  </tbody>
+		</tgroup>
+		</informaltable>
+	      </para>
+	  </formalpara>
+	</example>
+      </refsect1>
+    </refentry>
+
+  <!--
+Local Variables:
+mode: sgml
+sgml-parent-document: "pixfmt.sgml"
+indent-tabs-mode: nil
+End:
+  -->
-- 
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