d153a37801
Receiving RTCP often caused the worker thread to stall for >20 ms (>100ms observed) due to contention on VideoSender's send_crit_ (used to protect encoding). This change removes an unnecessary acquire of send_crit_ and caches encoder settings in ViEEncoder instead of acquiring them through ::SendCodec() in VCM (which is blocking). BUG=webrtc:5106 R=stefan@webrtc.org Review URL: https://codereview.webrtc.org/1433703002 . Cr-Commit-Position: refs/heads/master@{#10582}