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   1 <?xml version="1.0"?>
   2 <!--
   3 ###################################################
   4 ##Keep 1 in N
   5 ###################################################
   6  -->
   7 <block>
   8         <name>Keep 1 in N</name>
   9         <key>gr_keep_one_in_n</key>
  10         <import>from gnuradio import gr</import>
  11         <make>gr.keep_one_in_n($type.size*$vlen, $n)</make>
  12         <callback>set_n($n)</callback>
  13         <param>
  14                 <name>Type</name>
  15                 <key>type</key>
  16                 <type>enum</type>
  17                 <option>
  18                         <name>Complex</name>
  19                         <key>complex</key>
  20                         <opt>size:gr.sizeof_gr_complex</opt>
  21                 </option>
  22                 <option>
  23                         <name>Float</name>
  24                         <key>float</key>
  25                         <opt>size:gr.sizeof_float</opt>
  26                 </option>
  27                 <option>
  28                         <name>Int</name>
  29                         <key>int</key>
  30                         <opt>size:gr.sizeof_int</opt>
  31                 </option>
  32                 <option>
  33                         <name>Short</name>
  34                         <key>short</key>
  35                         <opt>size:gr.sizeof_short</opt>
  36                 </option>
  37                 <option>
  38                         <name>Byte</name>
  39                         <key>byte</key>
  40                         <opt>size:gr.sizeof_char</opt>
  41                 </option>
  42         </param>
  43         <param>
  44                 <name>N</name>
  45                 <key>n</key>
  46                 <value>1</value>
  47                 <type>int</type>
  48         </param>
  49         <param>
  50                 <name>Vec Length</name>
  51                 <key>vlen</key>
  52                 <value>1</value>
  53                 <type>int</type>
  54         </param>
  55         <check>$n &gt; 0</check>
  56         <check>$vlen &gt; 0</check>
  57         <sink>
  58                 <name>in</name>
  59                 <type>$type</type>
  60                 <vlen>$vlen</vlen>
  61         </sink>
  62         <source>
  63                 <name>out</name>
  64                 <type>$type</type>
  65                 <vlen>$vlen</vlen>
  66         </source>
  67 </block>