liveEdgeOffset
The duration in seconds by which the default start position should precede the end of the live window. A suggested presentation delay in a manifest will be overridden. In case of a DASH low latency stream (i.e. LowLatencyConfig is set), the liveEdgeOffset will be ignored. A value < 0 disables this feature.
Has no effect with HLS and Progressive sources.
Default value is -1.0.