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[media] DocBook: V4L: add V4L2_SDR_FMT_CU8 - 'CU08'

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Document V4L2_SDR_FMT_CU8 SDR format.
It is complex unsigned 8-bit IQ sample. Used by software defined
radio devices.

Cc: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This commit is contained in:
Antti Palosaari 2014-01-30 23:44:59 -03:00 committed by Mauro Carvalho Chehab
parent 8dfe644bf6
commit 0a670c42f2
2 changed files with 46 additions and 0 deletions
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44
Documentation/DocBook/media/v4l/pixfmt-sdr-cu08.xml Normal file
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@ -0,0 +1,44 @@
<refentry id="V4L2-SDR-FMT-CU08">
<refmeta>
<refentrytitle>V4L2_SDR_FMT_CU8 ('CU08')</refentrytitle>
&manvol;
</refmeta>
<refnamediv>
<refname>
<constant>V4L2_SDR_FMT_CU8</constant>
</refname>
<refpurpose>Complex unsigned 8-bit IQ sample</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<para>
This format contains sequence of complex number samples. Each complex number
consist two parts, called In-phase and Quadrature (IQ). Both I and Q are
represented as a 8 bit unsigned number. I value comes first and Q value after
that.
</para>
<example>
<title><constant>V4L2_SDR_FMT_CU8</constant> 1 sample</title>
<formalpara>
<title>Byte Order.</title>
<para>Each cell is one byte.
<informaltable frame="none">
<tgroup cols="2" align="center">
<colspec align="left" colwidth="2*" />
<tbody valign="top">
<row>
<entry>start&nbsp;+&nbsp;0:</entry>
<entry>I'<subscript>0</subscript></entry>
</row>
<row>
<entry>start&nbsp;+&nbsp;1:</entry>
<entry>Q'<subscript>0</subscript></entry>
</row>
</tbody>
</tgroup>
</informaltable>
</para>
</formalpara>
</example>
</refsect1>
</refentry>

2
Documentation/DocBook/media/v4l/pixfmt.xml
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@ -817,6 +817,8 @@ extended control <constant>V4L2_CID_MPEG_STREAM_TYPE</constant>, see
<para>These formats are used for <link linkend="sdr">SDR Capture</link>
interface only.</para>
&sub-sdr-cu08;
</section>
<section id="pixfmt-reserved">