tree 9440c9c156ad3132a184aac572744fe4e5d5f13f
parent 1d44550ddc8c412652c75a2dfb69ec861066592b
author zhihuang <zhihuang@webrtc.org> 1502759868 -0700
committer Commit Bot <commit-bot@chromium.org> 1502759868 +0000

Adding support for Unified Plan offer/answer negotiation to the mediasession layer.

This layer takes in a simplified "options" struct and the current local description,
and generates a new offer/answer. Previously the options struct assumed there would
only be one media description per media type (audio/video), but it now supports
N number of audio/video descriptions.

The |add_legacy_stream| options is removed from the mediasession.cc/.h
in this CL.

The next step is to add the ability for PeerConnection/WebRtcSession to create
"options" to represent multiple RtpTransceivers, and apply the Unified Plan
descriptions correctly. Right now, only Plan B descriptions will be
generated in unit tests.

BUG=chromium:465349

Review-Url: https://codereview.webrtc.org/2991693002
Cr-Commit-Position: refs/heads/master@{#19343}