<?xml version="1.0" encoding="UTF-8"?>
<tsduck>
  <_descriptors>

    <content_identifier_descriptor>
      <crid crid_type="uint6, required"
            crid_location="uint2, required"
            crid_ref="uint16, optional"
            crid="string, optional"/>
    </content_identifier_descriptor>

  </_descriptors>
</tsduck>
