==== Content Identifier Table (CIT)

Defined by DVB in <<ETSI-102-323>> (TV-Anytime).

[source,xml]
----
<CIT version="uint5, default=0"
     current="bool, default=true"
     service_id="uint16, required"
     transport_stream_id="uint16, required"
     original_network_id="uint16, required">

  <!-- One per prepend string -->
  <prepend_string value="string, required"/>

  <!-- One per CRID (Content Reference Identifier) -->
  <crid crid_ref="uint16, required"
        prepend_string_index="uint8, optional"
        unique_string="string, required"/>

</CIT>
----
