This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

This thread was archived. Please ask a new question if you need help.

Disable hardware video decoding for VP9 only?

  • 1 reply
  • 0 have this problem
  • 4 views
  • Last reply by cor-el

me
me
more options

Is it possible to disable hardware decoding for VP9 exclusively. Watching a 4K video on YouTube results in anywhere from 10% to 50% of frames dropped, which is not a great experience. If I disable video decoding entirely I get 0% dropped frames, but with 20% cpu overhead, therefore I'd like to disable it for VP9, but keep it for H264.

Is it possible to disable hardware decoding for VP9 exclusively. Watching a 4K video on YouTube results in anywhere from 10% to 50% of frames dropped, which is not a great experience. If I disable video decoding entirely I get 0% dropped frames, but with 20% cpu overhead, therefore I'd like to disable it for VP9, but keep it for H264.

All Replies (1)

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

There are two vp9 enabled prefs on the about:config page, you can leave the latter for WebRTC set to true.

  • media.mediasource.vp9.enabled = false
  • media.peerconnection.video.vp9_enabled = true