[webrtc-pc] Merged Pull Request: Revise the rules of the negotiation-needed flag for transceivers.

alvestrand has just merged taylor-b's pull request 913 for 
https://github.com/w3c/webrtc-pc:

== Revise the rules of the negotiation-needed flag for transceivers. 
==
Addresses issue #803.

Besides just revising the negotiation-needed sections to deal with
transceivers instead of tracks, this commit makes the following
improvements relevant to the negotiation-needed flag:

- Use an internal slot to represent the flag.
- Only update the flag when applying an answer, or modifying the
  PeerConnection in the "stable" signaling state. *Not* when creating 
an
  answer.
- Instead of directly firing the negotiationneeded event when applying
 an
  answer, queue a task to check the flag again and then fire it (which
  is how it's normally fired).
- More thoroughly specify the steps for updating the 
negotiation-needed
  flag, and the criteria for determining if negotiation is needed.
- Reference these steps in every method where the negotiation-needed
  flag may possibly be updated.
- Remove text talking about RtpReceivers allowing the application to
  control the receipt of media, requiring negotiation. There's no 
method
  on RtpReceiver that does anything but provide information to the
  application.

See https://github.com/w3c/webrtc-pc/pull/913

Received on Thursday, 10 November 2016 15:38:00 UTC