tree da91ce8d225dc30e414c836e137df18ec5226b81
parent 34509d9f33db8079c4bb66406f8a77cc7da27f9d
author pbos@webrtc.org <pbos@webrtc.org> 1424120520 +0000
committer pbos@webrtc.org <pbos@webrtc.org> 1424120540 +0000

Setup encoders inexpensively before first frame.

Modifies WebRtcVideoSendStream to use a default width/height of 16px.
This significantly reduces SetRemoteDescription time under
WebRtcVideoEngine2. Also preventing (expensive) reconfigurations due to
incoming frames when the channel is not sending yet.

Tests have been modified to generate a frame before expecting a certain
encoder size to have been configured.

Also adding tracing to WebRtcVideoSendStream::InputFrame as it can lead
to reconfigurations of the encoder which is expensive and it should show
up in chrome://tracing.

BUG=1788
R=stefan@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/42369004

Cr-Commit-Position: refs/heads/master@{#8381}
git-svn-id: http://webrtc.googlecode.com/svn/trunk@8381 4adac7df-926f-26a2-2b94-8c16560cd09d