This API enables the insertion of user-defined processing steps in the encoding and decoding of a WebRTC MediaStreamTrack.


Allow applications to insert custom data processing. A specific use case we want to support is end-to-end encryption of the encoded data transferred between RTCPeerConnections via an intermediate server.



Public discussion

Status in Chromium


Enabled by default (tracking bug) in:

  • Chrome for desktop release 86
  • Chrome for Android release 86

Consensus & Standardization

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

  • Positive
  • No signal
  • Positive
  • Positive


Last updated on 2021-04-05