tree 056095e2c062339a4cc318723bf584ed89d16835
parent 9438ddc9fc6bddeb7409e8a24827c8ed06c2a9ee
author Henrik Boström <hbos@webrtc.org> 1589207861 +0200
committer Commit Bot <commit-bot@chromium.org> 1589233540 +0000

[Adaptation] Make Manager's Resources not depend on encoder queue.

This CL makes the VideoStreamEncoderResourceManager's inner Resources
(PreventAdaptUpDueToActiveCounts,
PreventIncreaseResolutionDueToBitrateResource and
PreventAdaptUpInBalancedResource) not directly depend on any of the
manager's states that will continue to live on the encoder task queue
when the adaptation task queue is introduced in the next CL.

PreventAdaptUpDueToActiveCounts depends on effective degradation
preference, which it can get from the Processor, and the active counts,
which will move to the adaptation queue and is safe to use.

PreventIncreaseResolutionDueToBitrateResource depends on encoder
settings and target bitrate. This Resource now listens to these states
being updated, which may be implemented with a PostTask when the
adaptation queue is added.

PreventAdaptUpInBalancedResource depends on the effective degradation
preference, which it can get from the Processor; balanced settings,
which is a const readonly struct (thread-safe); and encoder target
bitrate, which it listens for being updated (to be PostTask'ed).

All resources depends on GetReasonFromResource() which will be callable
from the adaptation queue.

Bug: webrtc:11542, webrtc:11520
Change-Id: Ifa7bd87d9d8729988073f78f6a37c6f3b8aa4db1
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/174807
Commit-Queue: Henrik Boström <hbos@webrtc.org>
Reviewed-by: Ilya Nikolaevskiy <ilnik@webrtc.org>
Reviewed-by: Evan Shrubsole <eshr@google.com>
Cr-Commit-Position: refs/heads/master@{#31220}