63 lines
1.9 KiB
XML
63 lines
1.9 KiB
XML
|
<refentry id="V4L2-PIX-FMT-GREY">
|
||
|
<refmeta>
|
||
|
<refentrytitle>V4L2_PIX_FMT_GREY ('GREY')</refentrytitle>
|
||
|
&manvol;
|
||
|
</refmeta>
|
||
|
<refnamediv>
|
||
|
<refname><constant>V4L2_PIX_FMT_GREY</constant></refname>
|
||
|
<refpurpose>Grey-scale image</refpurpose>
|
||
|
</refnamediv>
|
||
|
<refsect1>
|
||
|
<title>Description</title>
|
||
|
|
||
|
<para>This is a grey-scale image. It is really a degenerate
|
||
|
Y'CbCr format which simply contains no Cb or Cr data.</para>
|
||
|
|
||
|
<example>
|
||
|
<title><constant>V4L2_PIX_FMT_GREY</constant> 4 × 4
|
||
|
pixel image</title>
|
||
|
|
||
|
<formalpara>
|
||
|
<title>Byte Order.</title>
|
||
|
<para>Each cell is one byte.
|
||
|
<informaltable frame="none">
|
||
|
<tgroup cols="5" align="center">
|
||
|
<colspec align="left" colwidth="2*" />
|
||
|
<tbody valign="top">
|
||
|
<row>
|
||
|
<entry>start + 0:</entry>
|
||
|
<entry>Y'<subscript>00</subscript></entry>
|
||
|
<entry>Y'<subscript>01</subscript></entry>
|
||
|
<entry>Y'<subscript>02</subscript></entry>
|
||
|
<entry>Y'<subscript>03</subscript></entry>
|
||
|
</row>
|
||
|
<row>
|
||
|
<entry>start + 4:</entry>
|
||
|
<entry>Y'<subscript>10</subscript></entry>
|
||
|
<entry>Y'<subscript>11</subscript></entry>
|
||
|
<entry>Y'<subscript>12</subscript></entry>
|
||
|
<entry>Y'<subscript>13</subscript></entry>
|
||
|
</row>
|
||
|
<row>
|
||
|
<entry>start + 8:</entry>
|
||
|
<entry>Y'<subscript>20</subscript></entry>
|
||
|
<entry>Y'<subscript>21</subscript></entry>
|
||
|
<entry>Y'<subscript>22</subscript></entry>
|
||
|
<entry>Y'<subscript>23</subscript></entry>
|
||
|
</row>
|
||
|
<row>
|
||
|
<entry>start + 12:</entry>
|
||
|
<entry>Y'<subscript>30</subscript></entry>
|
||
|
<entry>Y'<subscript>31</subscript></entry>
|
||
|
<entry>Y'<subscript>32</subscript></entry>
|
||
|
<entry>Y'<subscript>33</subscript></entry>
|
||
|
</row>
|
||
|
</tbody>
|
||
|
</tgroup>
|
||
|
</informaltable>
|
||
|
</para>
|
||
|
</formalpara>
|
||
|
</example>
|
||
|
</refsect1>
|
||
|
</refentry>
|