Commit | Line | Data |
---|---|---|
8e080c2e MCC |
1 | <refentry id="V4L2-PIX-FMT-GREY"> |
2 | <refmeta> | |
3 | <refentrytitle>V4L2_PIX_FMT_GREY ('GREY')</refentrytitle> | |
4 | &manvol; | |
5 | </refmeta> | |
6 | <refnamediv> | |
7 | <refname><constant>V4L2_PIX_FMT_GREY</constant></refname> | |
8 | <refpurpose>Grey-scale image</refpurpose> | |
9 | </refnamediv> | |
10 | <refsect1> | |
11 | <title>Description</title> | |
12 | ||
13 | <para>This is a grey-scale image. It is really a degenerate | |
14 | Y'CbCr format which simply contains no Cb or Cr data.</para> | |
15 | ||
16 | <example> | |
17 | <title><constant>V4L2_PIX_FMT_GREY</constant> 4 × 4 | |
18 | pixel image</title> | |
19 | ||
20 | <formalpara> | |
21 | <title>Byte Order.</title> | |
22 | <para>Each cell is one byte. | |
23 | <informaltable frame="none"> | |
24 | <tgroup cols="5" align="center"> | |
25 | <colspec align="left" colwidth="2*" /> | |
26 | <tbody valign="top"> | |
27 | <row> | |
28 | <entry>start + 0:</entry> | |
29 | <entry>Y'<subscript>00</subscript></entry> | |
30 | <entry>Y'<subscript>01</subscript></entry> | |
31 | <entry>Y'<subscript>02</subscript></entry> | |
32 | <entry>Y'<subscript>03</subscript></entry> | |
33 | </row> | |
34 | <row> | |
35 | <entry>start + 4:</entry> | |
36 | <entry>Y'<subscript>10</subscript></entry> | |
37 | <entry>Y'<subscript>11</subscript></entry> | |
38 | <entry>Y'<subscript>12</subscript></entry> | |
39 | <entry>Y'<subscript>13</subscript></entry> | |
40 | </row> | |
41 | <row> | |
42 | <entry>start + 8:</entry> | |
43 | <entry>Y'<subscript>20</subscript></entry> | |
44 | <entry>Y'<subscript>21</subscript></entry> | |
45 | <entry>Y'<subscript>22</subscript></entry> | |
46 | <entry>Y'<subscript>23</subscript></entry> | |
47 | </row> | |
48 | <row> | |
49 | <entry>start + 12:</entry> | |
50 | <entry>Y'<subscript>30</subscript></entry> | |
51 | <entry>Y'<subscript>31</subscript></entry> | |
52 | <entry>Y'<subscript>32</subscript></entry> | |
53 | <entry>Y'<subscript>33</subscript></entry> | |
54 | </row> | |
55 | </tbody> | |
56 | </tgroup> | |
57 | </informaltable> | |
58 | </para> | |
59 | </formalpara> | |
60 | </example> | |
61 | </refsect1> | |
62 | </refentry> | |
63 | ||
64 | <!-- | |
65 | Local Variables: | |
66 | mode: sgml | |
67 | sgml-parent-document: "pixfmt.sgml" | |
68 | indent-tabs-mode: nil | |
69 | End: | |
70 | --> |