tree 1ee7747fe4fd2d2736bc123da4c5958f0574b3b9
parent 96115cfcddff5a4e47c67092740caccef6cadda0
author Markus Handell <handellm@webrtc.org> 1592953570 +0200
committer Commit Bot <commit-bot@chromium.org> 1592995110 +0000

Reland RtpTransceiverInterface: introduce SetOfferedRtpHeaderExtensions.

This change adds exposure of a new transceiver method for
modifying the extensions offered in the next SDP negotiation,
following spec details in https://w3c.github.io/webrtc-extensions/#rtcrtptransceiver-interface.

Features:
- The interface allows to control the negotiated direction as
  per https://tools.ietf.org/html/rfc5285#page-7.
- The interface allows to remove an extension from SDP
  negotiation by modifying the direction to
  RtpTransceiverDirection::kStopped.

Note: support for signalling directionality of header extensions
in the SDP isn't implemented yet.

https://chromestatus.com/feature/5680189201711104.
Intent to prototype: https://groups.google.com/a/chromium.org/g/blink-dev/c/65YdUi02yZk

Tested: new unit tests in CL and manual tests with downstream project.
Bug: chromium:1051821
Change-Id: I7a4c2f979a5e50e88d49598eacb76d24e81c7c7a
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/177348
Commit-Queue: Markus Handell <handellm@webrtc.org>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#31554}