qualityLevels with length 0

[msjh80311]

Description

I've found that issue videojs/videojs-contrib-quality-levels#13 described a similar problem, and the reply told to use eventListener to addqualitylevel. I followed, but it seems like it just didn't get to those lines.

my codes are like:

  qualityLevels.on('addqualitylevel', function(event) {
    let qualityLevel = event.qualityLevel;
    console.log('qualityLevel.height:', qualityLevel.height);  // logs not printed
  });

What's more weird is, this problem doesn't always happen.

Users seldom encounter. And I can only tell that when my document is hidden during the initializing of the player, there's a lot more chance to happen!

Results

Expected

I could get all the tracks(sources) of my video via player.qualityLevels().

Actual

Problems that addqualitylevel seldom not works. player.qualityLevels() is an empty list.

Error output

no error message displayed at all...

Additional Information

versions

videojs

7.5.0+

browsers

desktop chrome, safari

plugins

• videojs-ima (1.5.1)
• videojs-contrib-ads (6.6.2)
• videojs-contrib-quality-levels (2.0.9)

[nikhilpaliwal129]

Hi, I am facing a similar issue. i.e. getting the empty array of levels in the "player.qualityLevels()" object in chrome version 72. is there any solution for it

Plugins:

• "videojs-contrib-quality-levels": "^2.0.9"
• "video.js": "^7.6.5"

[OCharnyshevich]

Hi, try to use console.log('qualityLevel.height:', event.qualityLevel.height);

[gkatsev]

If someone can provide a reduced test case we can take a look, however, we haven't seen this issue ourselves.