==== splice_time_descriptor

Defined by ANSI/SCTE in <<SCTE-35>>.
Must be in a Splice Information Table (table id 0xFC).

[source,xml]
----
<splice_time_descriptor
    identifier="uint32, default=0x43554549"
    TAI_seconds="uint48, required"
    TAI_ns="uint32, required"
    UTC_offset="uint16, required"/>
----
