tree c931ab216643ea957f44215a035734809a58ac60
parent 182044184e9b5a17ecb994c2bb1860fdf4eb48e0
author Henrik Boström <hbos@webrtc.org> 1664188604 +0200
committer WebRTC LUCI CQ <webrtc-scoped@luci-project-accounts.iam.gserviceaccount.com> 1664195239 +0000

[Stats] Add support for SSRC collisions.

In non-BUNDLE use cases, it is possible for multiple RTP streams to have
the same SSRC (as long as the SSRC is unique within the same transport).

This CL adds support for "outbound-rtp" and "inbound-rtp" stream stats
to have the same SSRC on different transports by adding the transport to
the stats ID. This avoids multiple RTP stream stats having the same
stats ID and fixes the problem. It's a stupid use case, but it should
work.

There could still be a stats ID collision in the event of multiple
"remote-inbound-rtp" or "remote-outbound-rtp" reference the same SSRC
but on separate transports for the same reason, and would require the
same fix... but one bug at a time. Not addressed in this CL.

Bug: webrtc:14443
Change-Id: I1a2ffd79fc67c2765e6dbd1ccc6828d4e91c4589
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/275769
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Commit-Queue: Henrik Boström <hbos@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#38201}