==== data_broadcast_descriptor

Defined by DVB in <<ETSI-300-468>>.

[source,xml]
----
<data_broadcast_descriptor
    data_broadcast_id="uint16, required"
    component_tag="uint8, required"
    language_code="char3, required">
  <selector_bytes>Hexadecimal content</selector_bytes>
  <text>String</text>
</data_broadcast_descriptor>
----
