How to get the video playback time when vlc is embedded in the front-end web page?

vlc is embedded in the front-end web page, how to get the video playback time?
uses 2.2.2
vlc.video and vlc.playlist are both empty objects. I don"t know how to get the airtime. Depressed

Mar.28,2021
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1b323ee-2bdf2.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b323ee-2bdf2.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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