Optional playbackPlayback speed to be used for catchup/fallback.
(Defaults: 1.08 for catchup and 0.95 for fallback.)
Optional playbackAllowed deviation from target latency before catchup/fallback by changing the playback speed is done.
(Default: 0.075)
Optional seekAllowed deviation from target latency before catchup/fallback by seeking is done.
(Default: 5)
Configuration specifying live latency synchronization (i.e. maintaining latency by catchup/fallback).