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[media] DocBook: V4L: add V4L2_SDR_FMT_RU12LE - 'RU12'

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Document V4L2_SDR_FMT_RU12LE format. It is real unsigned 12-bit
little endian sample inside 16-bit space. Used by software defined
radio devices.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This commit is contained in:
Antti Palosaari 2014-07-11 13:14:27 -03:00 committed by Mauro Carvalho Chehab
parent 9e9e3927ea
commit dd6b66d039
2 changed files with 41 additions and 0 deletions
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40
Documentation/DocBook/media/v4l/pixfmt-sdr-ru12le.xml Normal file
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@ -0,0 +1,40 @@
<refentry id="V4L2-SDR-FMT-RU12LE">
<refmeta>
<refentrytitle>V4L2_SDR_FMT_RU12LE ('RU12')</refentrytitle>
&manvol;
</refmeta>
<refnamediv>
<refname>
<constant>V4L2_SDR_FMT_RU12LE</constant>
</refname>
<refpurpose>Real unsigned 12-bit little endian sample</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<para>
This format contains sequence of real number samples. Each sample is
represented as a 12 bit unsigned little endian number. Sample is stored
in 16 bit space with unused high bits padded with 0.
</para>
<example>
<title><constant>V4L2_SDR_FMT_RU12LE</constant> 1 sample</title>
<formalpara>
<title>Byte Order.</title>
<para>Each cell is one byte.
<informaltable frame="none">
<tgroup cols="3" align="center">
<colspec align="left" colwidth="2*" />
<tbody valign="top">
<row>
<entry>start&nbsp;+&nbsp;0:</entry>
<entry>I'<subscript>0[7:0]</subscript></entry>
<entry>I'<subscript>0[11:8]</subscript></entry>
</row>
</tbody>
</tgroup>
</informaltable>
</para>
</formalpara>
</example>
</refsect1>
</refentry>

1
Documentation/DocBook/media/v4l/pixfmt.xml
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@ -859,6 +859,7 @@ interface only.</para>
&sub-sdr-cu08;
&sub-sdr-cu16le;
&sub-sdr-ru12le;
</section>