This setting scales down the resolution of a video’s layers in each dimension by the given value before sending. For example, setting the value to 2.0 scales each dimension by a factor of 2, sending a video a quarter of its size. The value must be greater than or equal to 1.0 (the default). The default value applies no scaling.


Specification link

Specification currently under development in a Working Group

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
  • Positive
  • Positive


Last updated on 2021-12-13