[1.x] `TrackOption.capture` type does not support `MediaStreamTrack`

[manupik]

The TrackOption type should allow the capture property to accept a MediaStreamTrack, in addition to the existing options.

Current definition

type TrackOption = {
	// ...
	capture: boolean | MediaTrackConstraints;
	// ...
}

Suggested update

type TrackOption = {
	// ...
	capture: boolean | MediaTrackConstraints | MediaStreamTrack;
	// ...
}

Rationale
This is consistent with both the implementation and the documentation:

• Code reference:
  

  janus-gateway/html/demos/janus.js

  Line 2484 in 90677e2

  // An external track was provided, use that

• Documentation excerpt:

capture: in case something must be captured (e.g., a microphone for "audio" or a "webcam" for video), the capture property can be used to dictate what and how; passing true asks for the default device, but getUserMedia (for audio/video) or getDisplayMedia (for screen sharing) constraints can be passed as well as objects, and in case those will be used instead; passing a MediaStreamTrack instance will tell the library not to capture anything, but use the provided track as a source instead.
https://janus.conf.meetecho.com/docs/JS.html

[lminiero]

That makes sense, thanks for spotting this. Could you create a PR with your proposed change? I'm out of office for a few days but I can review it next week.

[manupik]

Sure, it’s up already. 👍🏼