Add multiple Keyframe (dotted) descriptions to the video with js

recently encountered a problem, this technology has also been seen on iqiyi, Youku, after hard thinking, the technology is limited, I hope you can give me some ideas. It is better to provide the source code, thank you!

Feb.01,2022

dotting position = Keyframe time / total time * length of progress bar

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-64f5-1e9a2b5-17b9.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1e9a2b5-17b9.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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