Documentation/DocBook/media/v4l/pixfmt-sdr-cs14le.xml

   1 <refentry id="V4L2-SDR-FMT-CS14LE">
   2   <refmeta>
   3     <refentrytitle>V4L2_SDR_FMT_CS14LE ('CS14')</refentrytitle>
   4     &manvol;
   5   </refmeta>
   6     <refnamediv>
   7       <refname>
   8         <constant>V4L2_SDR_FMT_CS14LE</constant>
   9       </refname>
  10       <refpurpose>Complex signed 14-bit little endian IQ sample</refpurpose>
  11     </refnamediv>
  12     <refsect1>
  13       <title>Description</title>
  14       <para>
  15 This format contains sequence of complex number samples. Each complex number
  16 consist two parts, called In-phase and Quadrature (IQ). Both I and Q are
  17 represented as a 14 bit signed little endian number. I value comes first
  18 and Q value after that. 14 bit value is stored in 16 bit space with unused
  19 high bits padded with 0.
  20       </para>
  21     <example>
  22       <title><constant>V4L2_SDR_FMT_CS14LE</constant> 1 sample</title>
  23       <formalpara>
  24         <title>Byte Order.</title>
  25         <para>Each cell is one byte.
  26           <informaltable frame="none">
  27             <tgroup cols="3" align="center">
  28               <colspec align="left" colwidth="2*" />
  29               <tbody valign="top">
  30                 <row>
  31                   <entry>start&nbsp;+&nbsp;0:</entry>
  32                   <entry>I'<subscript>0[7:0]</subscript></entry>
  33                   <entry>I'<subscript>0[13:8]</subscript></entry>
  34                 </row>
  35                 <row>
  36                   <entry>start&nbsp;+&nbsp;2:</entry>
  37                   <entry>Q'<subscript>0[7:0]</subscript></entry>
  38                   <entry>Q'<subscript>0[13:8]</subscript></entry>
  39                 </row>
  40               </tbody>
  41             </tgroup>
  42           </informaltable>
  43         </para>
  44       </formalpara>
  45     </example>
  46   </refsect1>
  47 </refentry>