startOffset
The position where the stream should be started. Number can be positive or negative depending on the used TimelineReferencePoint. Invalid numbers will be corrected according to the stream boundaries.
For VOD this is applied at the time the stream is loaded, for LIVE when playback starts. For HLS streams setting a startOffset overrides a potential EXT-X-START:TIME-OFFSET
value.
This is overridden by SourceLiveConfig.targetLatency, LowLatencyConfig.targetLatency and LiveConfig.liveEdgeOffset, if set.
Default value: null