commit 5614cf16e71e59e4785deca05249d9a06f746d66
author bjornv@webrtc.org <bjornv@webrtc.org> Tue Jan 27 18:09:52 2015
committer bjornv@webrtc.org <bjornv@webrtc.org> Tue Jan 27 18:10:27 2015
tree 683e1cc741de8c085e35ec145a680c7f9da46245
parent 6e251822cdfeed8ddc1829f6a16e510313565931

audio_processing: Use fixed aggregation window in delay metrics

Previously, the delay estimate history was reset every time the metrics were pulled. This required all clients to be on the same thread and make use of one call.

Now we use a fixed aggregation window of one second and when a client pulls the metrics you get the latest value.
Under certain circumstances like tests you would like to have the aggregation window set to the recording length. We therefore turn on the fixed aggregation window after the first call.

BUG=2994
TESTED=locally on Mac and trybots
R=kwiberg@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/38759004

Cr-Commit-Position: refs/heads/master@{#8170}
git-svn-id: http://webrtc.googlecode.com/svn/trunk@8170 4adac7df-926f-26a2-2b94-8c16560cd09d