==== ISDB_component_group_descriptor

Defined by ARIB in <<ARIB-B10J>>.

[source,xml]
----
<ISDB_component_group_descriptor
   component_group_type="uint3, required">

  <component_group
    component_group_id="uint4, required"
    total_bit_rate="uint8, optional"
    explanation="string, optional">

    <CAUnit
       CA_unit_id="uint4, required">

      <component_tags>
        Up to 16 8-bit component tags
      </component_tags>

    </CAUnit>
  </component_group>

</ISDB_component_group_descriptor>
----
