commit 72a43a1d2cf3a667bbd218383aa975de72ed6804
author Qingsi Wang <qingsi@google.com> Tue Feb 20 16:03:18 2018 -0800
committer Commit Bot <commit-bot@chromium.org> Wed Feb 21 00:49:26 2018 +0000
tree 4ca655d4d75c9611eca8e302635bc80b41b8c09b
parent 54b8407ee59360b1744a8db5958437e7ca566d9d

Collect packet loss and RTT stats of STUN binding requests.

STUN candidates use STUN binding requests to keep NAT bindings open.
Related stats including packet loss and RTT can be now collected via the
legacy GetStats in PeerConnection.

Bug: None
Change-Id: I7b0eee1ccb07eb670a32ee303c9590047b25f31c
Reviewed-on: https://webrtc-review.googlesource.com/54100
Commit-Queue: Qingsi Wang <qingsi@google.com>
Reviewed-by: Taylor Brandstetter <deadbeef@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#22113}

rtc_base/helpers.cc

diff --git a/rtc_base/helpers.cc b/rtc_base/helpers.cc
index b0c8856..9cb9268 100644
--- a/rtc_base/helpers.cc
+++ b/rtc_base/helpers.cc
@@ -215,4 +215,8 @@
                              std::numeric_limits<double>::epsilon());
 }
 
+double GetNextMovingAverage(double prev_average, double cur, double ratio) {
+  return (ratio * prev_average + cur) / (ratio + 1);
+}
+
 }  // namespace rtc