In the past we relied upon ViEEncoder::OnFrame to set the render time for
frames. With the branch 64 update, this code moved to
VideoStreamEncoder::OnFrame, and only sets the timestamp if it is greater than
the current time. This results in broken rtp timestamp estimates in the rtcp
sender report, which causes problems for Meet and possibly other services
that rewrite rtp timestamps based upon the sender report.
This patch makes VideoStreamEncoder::OnFrame always set the timestamp. In a
follow on bug, we'll move this behaviour to VideoConduit so we don't have to
maintain a local modification of the upstream code.
Differential Revision: https://phabricator.services.mozilla.com/D17413
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extra : moz-landing-system : lando
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