tree 6a54f3ef0a2631cf8b2958f696f918f016d46f51
parent e49d64e762660140d1b0bde1b9274dd24290ab87
author Erik Språng <sprang@webrtc.org> 1551883053 +0100
committer Commit Bot <commit-bot@chromium.org> 1551948161 +0000

Add target bitrate headroom signal to VideoStreamEncoder.

This CL plumbs an additional signal from VideoSendStream down to
VideoStreamEncoder, namely the amount of headroom that's left between
the encoder max bitrate and the current bitrate allocation for the
media track.

This will be used in follow-up CLs to tune encoder rate adjustment
and some codec specific paramaters a bit differently, based on the
knowledge if we are network constrained or not.

Bug: webrtc:10155
Change-Id: Ic6ccc79be5c6845468bab65b4ca9918b56923fa4
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/125981
Reviewed-by: Niels Moller <nisse@webrtc.org>
Commit-Queue: Erik Språng <sprang@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#27008}