rewind
ISO 8601 time between 1 minute to the duration of archive_window_duration to control seek-able window length during Live. The service won't use this property once LiveOutput stops. The archived VOD will have full content with original ArchiveWindowLength. For example, use PT1H30M to indicate 1 hour and 30 minutes of rewind window length. Service will use implicit default value 30m only if Live Event enables LL. Changing this forces a new Live Output to be created.