What is the principle of Douyu's playback format and player?

doesn"t the h5 LVB format under ios only use hls? Why doesn"t it look like a big delay compared to PC-side web? Is
the reason for server-side optimization? Can the delay of Qiniuyun reach this level?

Live rtmp hls javascript
Apr.07,2021

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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-64f5-1bef2f6-31c45.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1bef2f6-31c45.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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