tree 2e61e0786370a1a62fdfec87e6fcff740be3925c
parent fddbe6c632b908a74ea9776138b57ef815564ed1
author Erik Språng <sprang@webrtc.org> 1569948603 +0200
committer Commit Bot <commit-bot@chromium.org> 1569951104 +0000

SimulcastEncoderAdapter: support per layer fallback and single encoder proxying

This CL adds an optional second encoder factory to SimulcastEncoderAdapter,
that can be used to create software fallback adapter per simulcast layer.

It also adds logic to check if the encoder supports simulcast natively, if so
it only allocates a single instance and delegates the simulcast logic to that
encoder instead. This means we will be able to remove EncoderSimulcastProxy.

Bug: webrtc:11000
Change-Id: Ifd5f029cc281ee2cedf9d18efa5e7e460884d6ff
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/155171
Commit-Queue: Erik Språng <sprang@webrtc.org>
Reviewed-by: Rasmus Brandt <brandtr@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#29364}