commit 3949e8666e5920a5b90c4f585485fc0be81ed046
author Peter Boström <pbos@webrtc.org> Fri Apr 10 13:36:33 2015
committer Peter Boström <pbos@webrtc.org> Fri Apr 10 13:36:32 2015
tree 3b2b47893641185272ed733628214265c3e81de4
parent a125d7d7adc5fe6147b07be06f2380a772b30bdd

Prevent decoder busy loop for send-only channels.

ViEChannels without default encoders doesn't register a receive codec by
default. This makes VideoReceiver::Decode return early, causing a
high-priority thread to effectively be busy looping. This would be
expected to wreck more havoc in a more cross-platform manner than it has
visibly done. On Windows XP however it manages to bring the whole
machine to a grinding halt forcing a reboot if CPU usage hits 100%.

BUG=chromium:470013
R=stefan@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/48049004

Cr-Commit-Position: refs/heads/master@{#8976}