==== stream_event_descriptor

Defined by MPEG in <<ISO-13818-6>>.

Note: `<private_data>` and `<private_text>` are mutually exclusive.
They both define the same private data part, the former using hexadecimal format and the latter ASCII text.

[source,xml]
----
<stream_event_descriptor
    event_id="uint16, required"
    event_NPT="uint33, required">
  <private_data>
    Hexadecimal content
  </private_data>
  <private_text>
    ASCII string to be used instead of private_data
  </private_text>
</stream_event_descriptor>
----
