commit 7e7e805d3b48377fd4487940be7707c8855ea447
author Shuhai Peng <shuhai.peng@intel.com> Mon Oct 11 10:24:01 2021
committer WebRTC LUCI CQ <webrtc-scoped@luci-project-accounts.iam.gserviceaccount.com> Mon Oct 11 11:32:17 2021
tree e201f49298615e1e4028472a7b5811cdad4eb6e3
parent 49c59ca8063366e8cc36c3d5d597da09a2aaf54f

video: Re-configure scalers when encoder info changed.

Encoder info will be modified at runtime. In fact, we should reduce the
number of 'full' ReconfigureEncoder(). If only need subset of it at
runtime, consider handle it in VideoStreamEncoder::EncodeVideoFrame().

Consider two cases:
Re-configure scalers when encoder info changed. Consider two cases:
1. When the status of the scaler changes from enabled to disabled, if we
don't do this CL, scaler will adapt up/down to trigger an unnecessary
full ReconfigureEncoder() when the scaler should be banned.
2. When the status of the scaler changes from disabled to enabled, if we
don't do this CL, scaler will not work until some code trigger
ReconfigureEncoder(). In extreme cases, the scaler doesn't even work for
a long time when we expect that the scaler should work.

This CL aims to make scalers work properly when encoder info changed.

BUG: None
Change-Id: Iec17730b5fac5e642c0fb2d9b11c5b7434f0a220
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/233384
Reviewed-by: Ilya Nikolaevskiy <ilnik@webrtc.org>
Reviewed-by: Henrik Boström <hbos@webrtc.org>
Commit-Queue: Ilya Nikolaevskiy <ilnik@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#35175}