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Documentation / DocBook / media / v4l / pixfmt-y8i.xml


Based on kernel version 4.7.2. Page generated on 2016-08-22 22:45 EST.

1	<refentry id="V4L2-PIX-FMT-Y8I">
2	  <refmeta>
3	    <refentrytitle>V4L2_PIX_FMT_Y8I ('Y8I ')</refentrytitle>
4	    &manvol;
5	  </refmeta>
6	  <refnamediv>
7	    <refname><constant>V4L2_PIX_FMT_Y8I</constant></refname>
8	    <refpurpose>Interleaved grey-scale image, e.g. from a stereo-pair</refpurpose>
9	  </refnamediv>
10	  <refsect1>
11	    <title>Description</title>
12	
13	    <para>This is a grey-scale image with a depth of 8 bits per pixel, but with
14	pixels from 2 sources interleaved. Each pixel is stored in a 16-bit word. E.g.
15	the R200 RealSense camera stores pixel from the left sensor in lower and from
16	the right sensor in the higher 8 bits.</para>
17	
18	    <example>
19	      <title><constant>V4L2_PIX_FMT_Y8I</constant> 4 &times; 4
20	pixel image</title>
21	
22	      <formalpara>
23		<title>Byte Order.</title>
24		<para>Each cell is one byte.
25		  <informaltable frame="none">
26		    <tgroup cols="9" align="center">
27		      <colspec align="left" colwidth="2*" />
28		      <tbody valign="top">
29			<row>
30			  <entry>start&nbsp;+&nbsp;0:</entry>
31			  <entry>Y'<subscript>00left</subscript></entry>
32			  <entry>Y'<subscript>00right</subscript></entry>
33			  <entry>Y'<subscript>01left</subscript></entry>
34			  <entry>Y'<subscript>01right</subscript></entry>
35			  <entry>Y'<subscript>02left</subscript></entry>
36			  <entry>Y'<subscript>02right</subscript></entry>
37			  <entry>Y'<subscript>03left</subscript></entry>
38			  <entry>Y'<subscript>03right</subscript></entry>
39			</row>
40			<row>
41			  <entry>start&nbsp;+&nbsp;8:</entry>
42			  <entry>Y'<subscript>10left</subscript></entry>
43			  <entry>Y'<subscript>10right</subscript></entry>
44			  <entry>Y'<subscript>11left</subscript></entry>
45			  <entry>Y'<subscript>11right</subscript></entry>
46			  <entry>Y'<subscript>12left</subscript></entry>
47			  <entry>Y'<subscript>12right</subscript></entry>
48			  <entry>Y'<subscript>13left</subscript></entry>
49			  <entry>Y'<subscript>13right</subscript></entry>
50			</row>
51			<row>
52			  <entry>start&nbsp;+&nbsp;16:</entry>
53			  <entry>Y'<subscript>20left</subscript></entry>
54			  <entry>Y'<subscript>20right</subscript></entry>
55			  <entry>Y'<subscript>21left</subscript></entry>
56			  <entry>Y'<subscript>21right</subscript></entry>
57			  <entry>Y'<subscript>22left</subscript></entry>
58			  <entry>Y'<subscript>22right</subscript></entry>
59			  <entry>Y'<subscript>23left</subscript></entry>
60			  <entry>Y'<subscript>23right</subscript></entry>
61			</row>
62			<row>
63			  <entry>start&nbsp;+&nbsp;24:</entry>
64			  <entry>Y'<subscript>30left</subscript></entry>
65			  <entry>Y'<subscript>30right</subscript></entry>
66			  <entry>Y'<subscript>31left</subscript></entry>
67			  <entry>Y'<subscript>31right</subscript></entry>
68			  <entry>Y'<subscript>32left</subscript></entry>
69			  <entry>Y'<subscript>32right</subscript></entry>
70			  <entry>Y'<subscript>33left</subscript></entry>
71			  <entry>Y'<subscript>33right</subscript></entry>
72			</row>
73		      </tbody>
74		    </tgroup>
75		  </informaltable>
76		</para>
77	      </formalpara>
78	    </example>
79	  </refsect1>
80	</refentry>
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