Weekly github digest (WebRTC WG specifications)

Issues
------
* w3c/webrtc-pc (+3/-1/💬5)
  3 issues created:
  - Is it illegal to modify sdp between createOffer and setLocalDescription? (by y-i)
    https://github.com/w3c/webrtc-pc/issues/2907 
  - Are various exposed RTCIceCandidate values object-comparable? (by jan-ivar)
    https://github.com/w3c/webrtc-pc/issues/2906 
  - Name and export the RTCIceTransport algorithm for change in selected pair or state (by sam-vi)
    https://github.com/w3c/webrtc-pc/issues/2904 

  1 issues received 5 new comments:
  - #2907 Is it illegal to modify sdp between createOffer and setLocalDescription? (5 by alvestrand, henbos, y-i)
    https://github.com/w3c/webrtc-pc/issues/2907 

  1 issues closed:
  - Should garbage collecting RTCDataChannels be observable? https://github.com/w3c/webrtc-pc/issues/2624 [Ready for PR] 

* w3c/mediacapture-main (+1/-0/💬2)
  1 issues created:
  - How should MediaStreamTrack interact with BFCache? (by fergald)
    https://github.com/w3c/mediacapture-main/issues/974 

  1 issues received 2 new comments:
  - #974 How should MediaStreamTrack interact with BFCache? (2 by youennf)
    https://github.com/w3c/mediacapture-main/issues/974 

* w3c/mediacapture-screen-share (+1/-0/💬0)
  1 issues created:
  - Can a shared surface select its derivative window？ (by trookie2000)
    https://github.com/w3c/mediacapture-screen-share/issues/282 

* w3c/webrtc-extensions (+5/-0/💬2)
  5 issues created:
  - Maintain an internal slot of candidate pairs that are valid inputs to RTCIceTransport operations (by sam-vi)
    https://github.com/w3c/webrtc-extensions/issues/188 
  - Describe a match algorithm for two RTCIceCandidatePairs (by sam-vi)
    https://github.com/w3c/webrtc-extensions/issues/187 
  - Describe a match algorithm for two RTCIceCandidates (by sam-vi)
    https://github.com/w3c/webrtc-extensions/issues/186 
  - setSelectedCandidatePair should explicitly reference the RTCIceTransport algorithm for change in selected candidate pair (by sam-vi)
    https://github.com/w3c/webrtc-extensions/issues/185 
  - Clarify how icecandidatepairnominate and selectCandidatePair are to be used (by jan-ivar)
    https://github.com/w3c/webrtc-extensions/issues/184 

  2 issues received 2 new comments:
  - #188 Maintain an internal slot of candidate pairs that are valid inputs to RTCIceTransport operations (1 by jan-ivar)
    https://github.com/w3c/webrtc-extensions/issues/188 
  - #182 Unclear when all side-effects of setSelectedCandidatePair have taken effect (1 by jan-ivar)
    https://github.com/w3c/webrtc-extensions/issues/182 



Pull requests
-------------
* w3c/webrtc-pc (+1/-2/💬1)
  1 pull requests submitted:
  - Name and export the RTCIceTransport state update algo (by sam-vi)
    https://github.com/w3c/webrtc-pc/pull/2905 

  1 pull requests received 1 new comments:
  - #2905 Name and export the RTCIceTransport state update algo (1 by sam-vi)
    https://github.com/w3c/webrtc-pc/pull/2905 

  2 pull requests merged:
  - Update to ReSpec version 34.2.0
    https://github.com/w3c/webrtc-pc/pull/2903 [Editorial] [repo-management] 
  - Prevent GC of non-closed RTCDataChannels
    https://github.com/w3c/webrtc-pc/pull/2902 

* w3c/mediacapture-main (+0/-1/💬0)
  1 pull requests merged:
  - Update to latest ReSpec version 34.2.0
    https://github.com/w3c/mediacapture-main/pull/973 [editorial] [repo-management] 

* w3c/webrtc-encoded-transform (+0/-0/💬2)
  1 pull requests received 2 new comments:
  - #186 Add description of an API for controlling SDP codec negotiation (2 by alvestrand, fippo)
    https://github.com/w3c/webrtc-encoded-transform/pull/186 


Repositories tracked by this digest:
-----------------------------------
* https://github.com/w3c/webrtc-pc
* https://github.com/w3c/webrtc-identity
* https://github.com/w3c/webrtc-stats
* https://github.com/w3c/webrtc-charter
* https://github.com/w3c/webrtc-priority
* https://github.com/w3c/webrtc-ice
* https://github.com/w3c/webrtc-nv-use-cases
* https://github.com/w3c/mediacapture-main
* https://github.com/w3c/mediacapture-record
* https://github.com/w3c/mediacapture-image
* https://github.com/w3c/mediacapture-fromelement
* https://github.com/w3c/mediacapture-output
* https://github.com/w3c/mediacapture-screen-share
* https://github.com/w3c/mst-content-hint
* https://github.com/w3c/webrtc-svc
* https://github.com/w3c/webrtc-extensions
* https://github.com/w3c/webrtc-provisional-stats
* https://github.com/w3c/webrtc-encoded-transform
* https://github.com/w3c/mediacapture-automation
* https://github.com/w3c/mediacapture-transform
* https://github.com/w3c/mediacapture-region
* https://github.com/w3c/mediacapture-handle
* https://github.com/w3c/mediacapture-viewport
* https://github.com/w3c/webrtc-rtptransport
* https://github.com/web-platform-tests/wpt


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