tree 6a731c1e899ba2f7e1d3799b3b9f1d37e0ba7f4a
parent f37e9a385e422db83b2a84c6294d6df4909eec63
author Henrik Boström <hbos@webrtc.org> 1593611326 +0200
committer Commit Bot <commit-bot@chromium.org> 1593685691 +0000

[Adaptation] Multi-processor support for injected Resources.

Because a single Resource only has a single ResourceListener, injected
Resources only gets wired up to the stream's ResourceAdaptationProcessor
that was last to call SetResourceListener. This could potentially lead
to the relevant stream not adapting based on the injected resource
because it got wired up to the wrong stream's processor.

This CL fixes this issue by introducing BroadcastResourceListener. By
listening to 1 resource (the injected one), it can spawn N "adapter"
resources that mirror's the injected resource's usage signal, allowing
all ResourceAdaptationProcessor's to react to the signal.

This is wired up in Call, and tests are updated to verify the signal
gets through.

Bug: chromium:1101263, webrtc:11720
Change-Id: I8a37284cb9a68f08ca1bdb1ee050b7144c451297
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/178386
Reviewed-by: Stefan Holmer <stefan@webrtc.org>
Reviewed-by: Evan Shrubsole <eshr@google.com>
Commit-Queue: Henrik Boström <hbos@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#31612}