channelId of the manifest the session is aligned to now; null when it has none.
Delivery mode in effect after the switch.
Event id in effect after the boundary, or null when no event is active.
The polled manifest URL (unchanged by the switch).
channelId of the manifest the session was aligned to before; null when it had none.
Delivery mode in effect before the switch.
Emitted when a polled manifest changes the ads channel or playback crosses a channel-event boundary. Event-boundary changes use reason
event-boundaryand identify the active event witheventId(ornullwhen no event is active). During an active break, the event is emitted after that break finishes and the latest manifest is applied.