Greasy Fork

First of all, this is a really handy add-on and thanks for supporting this constantly! :)

I set the quality to be the highest highres because I had a pretty good graphics card and would like to enjoy the video to the highest resolution. One thing I noticed that the script worked initially by setting the quality to 8K, but then it was changed again to Auto. I think the second change was done by YouTube. Could you suggest a way to force the quality setting until it is finalized? It could be a simple loop until the quality is reached the desired quality.

Thanks for reporting the issue. Are you using 2020.09.26? There was an issue in 2020.09.24 that was causing problems with setting the resolution, but I just released 2020.09.26 a couple of hours ago to fix that.

Thanks for the prompt reply!

Yes, I used the latest version 2020.09.26. I am not sure what happened before but now it looks like it is working correctly now. :p

I did 2 small modifications on your codes.

1. Line 167 ytPlayer.setPlaybackQuality(targetRes); to
   while (ytPlayer.getPlaybackQuality() !== targetRes) { ytPlayer.setPlaybackQuality(targetRes); }
2. Line 197 ytPlayer.setPlaybackQuality(resolutionList[nextBestIndex]); to
   while (ytPlayer.getPlaybackQuality() !== resolutionList[nextBestIndex]) { ytPlayer.setPlaybackQuality(resolutionList[nextBestIndex]); }

I am definitely a rookie to JS so not sure whether this is the best way to do. But I suspect whether these changes will work as the script probably runs before YouTube comes in. YouTube may revert the video quality at a later point of time. But anyway, it is working well right now.