==== HEVC_timing_and_HRD_descriptor

Defined by MPEG in <<ISO-13818-1>>.

[source,xml]
----
<HEVC_timing_and_HRD_descriptor
    hrd_management_valid="bool, required"
    target_schedule_idx="uint5, optional"
    N="uint32, optional, specify both N and K or none"
    K="uint32, optional, specify both N and K or none"
    num_units_in_tick="uint32, optional"/>
----
