Review mute/unmute/ended and constraints on track in audioContext.createMediaStreamDestination().stream

[jan-ivar]

As per w3c/mediacapture-main#984, please review mute/unmute/ended and constraints on the track in MediaStreamAudioDestinationNode's stream.

This is a spec cleanup to remove any implicitly inherited behaviors, requiring each spec that defines a source of new MediaStreamTracks to follow these extension guidelines, specifically:

A quick perusal revealed no mention of muted, ended or constraints related to MediaStreamAudioDestinationNode's track.

If a MediaStreamAudioDestinationNode's track is never muted or ended, and cannot be constrained (with applyConstraints), this is now the default behavior, but it might be good to call it out if it is intentional. E.g. something like "The MediaStreamAudioDestinationNode's stream's track is never muted or ended, and has no constraints."

[mjwilson-google]

2024-04-04 Audio WG teleconference conclusion:

If a MediaStreamAudioDestinationNode's track is never muted or ended, and cannot be constrained (with applyConstraints), this is now the default behavior, but it might be good to call it out if it is intentional. E.g. something like "The MediaStreamAudioDestinationNode's stream's track is never muted or ended, and has no constraints."

We will make the default behavior explicit as suggested above. Thank you for bringing this up.