Optional ReadonlyclipReplace only: when true (the default), a late-starting alternative presentation is clipped so the main presentation resumes on time.
Optional ReadonlyearliestHow far before the event the alternative MPD may be resolved.
Optional ReadonlymaxThe maximum duration the alternative presentation may play.
Optional ReadonlyreturnReplace only: the offset from the event's start at which the main presentation resumes. Defaults to the event's duration.
Optional ReadonlystartReplace only: when true, a late-starting alternative presentation starts at the offset it would have reached had it started on time.
Optional ReadonlyuriThe URL of the alternative MPD, or of a resolver that returns it.
An alternative MPD event's presentation, ISO/IEC 23009-1 5.16. Durations and offsets are in the parent EventStream's timescale units.