48 lines
1.6 KiB
XML
48 lines
1.6 KiB
XML
|
<refentry id="V4L2-SDR-FMT-CS14LE">
|
||
|
|
<refmeta>
|
||
|
|
<refentrytitle>V4L2_SDR_FMT_CS14LE ('CS14')</refentrytitle>
|
||
|
|
&manvol;
|
||
|
|
</refmeta>
|
||
|
|
<refnamediv>
|
||
|
|
<refname>
|
||
|
|
<constant>V4L2_SDR_FMT_CS14LE</constant>
|
||
|
|
</refname>
|
||
|
|
<refpurpose>Complex signed 14-bit little endian 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 14 bit signed little endian number. I value comes first
|
||
|
|
and Q value after that. 14 bit value is stored in 16 bit space with unused
|
||
|
|
high bits padded with 0.
|
||
|
|
</para>
|
||
|
|
<example>
|
||
|
|
<title><constant>V4L2_SDR_FMT_CS14LE</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 + 0:</entry>
|
||
|
|
<entry>I'<subscript>0[7:0]</subscript></entry>
|
||
|
|
<entry>I'<subscript>0[13:8]</subscript></entry>
|
||
|
|
</row>
|
||
|
|
<row>
|
||
|
|
<entry>start + 2:</entry>
|
||
|
|
<entry>Q'<subscript>0[7:0]</subscript></entry>
|
||
|
|
<entry>Q'<subscript>0[13:8]</subscript></entry>
|
||
|
|
</row>
|
||
|
|
</tbody>
|
||
|
|
</tgroup>
|
||
|
|
</informaltable>
|
||
|
|
</para>
|
||
|
|
</formalpara>
|
||
|
|
</example>
|
||
|
|
</refsect1>
|
||
|
|
</refentry>
|