CmafWebVttOutputSettings.cueLatencyToleranceMs property
How far behind live the subtitle "forcing timer" keeps its finalisation watermark when no cues are flowing, so that cues arriving late relative to their media timestamp (e.g. a transcriber holding a caption until an utterance ends) are not stranded in an already-finalised segment. Raise this if captioning for a stream is very stop-start / delayed. Default: one segment.
Signature:
cueLatencyToleranceMs?: number;