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

    <!-- ATSC Extended Text Table -->
    <ETT version="uint5, default=0"
         protocol_version="uint8, default=0"
         ETT_table_id_extension="uint16, required"
         ETM_id="uint32, required">
      <_any in="_metadata"/>
      <!-- Optional ATSC multiple_string_structure() containing one or more strings -->
      <extended_text_message>
        <string language="char3, required" text="string, required"/>
      </extended_text_message>
    </ETT>

  </_tables>
</tsduck>
