This simple API tells sites how a video playback is performing. When performance is poor, sites may use the information to reduce the video bitrate / framerate / resolution for a better user experience.


Video performance info is useful to improve the user experience. Chrome should ship the API to achieve interop with other UAs.



Specification link

Unknown standards status - check spec link for status

Status in Chromium


Enabled by default (tracking bug)

Consensus & Standardization

After a feature ships in Chrome, the values listed here are not guaranteed to be up to date.

  • Shipped/Shipping
  • Shipped/Shipping
  • Positive


Search tags

MediaPlaybackQuality, getVideoPlaybackQuality,

Last updated on 2021-12-13