WebAudio: MediaElement and MediaStream nodes defined only for AudioContext

Chrome historically allowed creation of MediaElementAudioSourceNode's, MediaStreamAudioSourceNode's, and MediaStreamAudioDestinationNode's using an OfflineAudioContext. This does not comply with the spec; these nodes should only be available for an AudioContext. The behavior with an OfflineAudioContext is not well-defined and contrary to the real-time nature of the nodes themselves. Thus, only allow these nodes to be constructed for an AudioContext.

Documentation

Specification

Editor's draft

Status in Chromium

Blink>WebAudio


Enabled by default (tracking bug) in:

  • Chrome for desktop release 71
  • Chrome for Android release 71
  • Chrome for iOS release 71
  • Opera release 58
  • Opera for Android release 58

Consensus & Standardization

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

  • Shipped
  • No public signals
  • No public signals
  • No signals

Owners

Last updated on 2018-08-28