commit 5b1477839d8569291b88dfe950089d0ebf34bc8f
author Henrik Boström <hbos@webrtc.org> Tue Dec 04 11:25:05 2018 +0100
committer Commit Bot <commit-bot@chromium.org> Wed Dec 05 09:53:21 2018 +0000
tree 0d54a6320976958f938e12225ea6e8d4a0af4dc1
parent e5e36ddc400fc660c72601f63739615446659a83

[Unified Plan] If "a=msid" is missing, create default stream.

Prior to this CL, if the "a=msid" attribute was missing it was treated
the same as if "no streams" were explicitly signaled (a=msid:-); the
receivers would not be associated with any streams.

In order to support legacy endpoints that don't recognize "a=msid" that
assume the Plan B behavior of a stream being created anyway, this CL
creates a stream with a random ID in such cases. For background, see
https://github.com/web-platform-tests/wpt/pull/14054.

Bug: chromium:907508
Change-Id: I9d9dd0e4ba8f9941f8652f4d7873adc560777cd9
Reviewed-on: https://webrtc-review.googlesource.com/c/112900
Reviewed-by: Seth Hampson <shampson@webrtc.org>
Commit-Queue: Henrik Boström <hbos@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#25901}

api/rtpreceiverinterface.h

diff --git a/api/rtpreceiverinterface.h b/api/rtpreceiverinterface.h
index 266f6ac..2619735 100644
--- a/api/rtpreceiverinterface.h
+++ b/api/rtpreceiverinterface.h
@@ -146,6 +146,7 @@
 BEGIN_SIGNALING_PROXY_MAP(RtpReceiver)
 PROXY_SIGNALING_THREAD_DESTRUCTOR()
 PROXY_CONSTMETHOD0(rtc::scoped_refptr<MediaStreamTrackInterface>, track)
+PROXY_CONSTMETHOD0(std::vector<std::string>, stream_ids)
 PROXY_CONSTMETHOD0(std::vector<rtc::scoped_refptr<MediaStreamInterface>>,
                    streams)
 PROXY_CONSTMETHOD0(cricket::MediaType, media_type)