commit 64851c0bfbefe25c6ceedbec13934475df268ef8
author Taylor Brandstetter <deadbeef@webrtc.org> Thu Jun 24 13:32:50 2021 -0700
committer WebRTC LUCI CQ <webrtc-scoped@luci-project-accounts.iam.gserviceaccount.com> Fri Jun 25 21:08:20 2021 +0000
tree 1cdf5c5d4db2dc6d418bfce556205f70c2eae208
parent a98742950061a9a0bc66ab429131bba316154860

Reland: Fix echo return loss stats and add to RTCAudioSourceStats.

Relanding after adding to chromium stats whitelist:
https://chromium-review.googlesource.com/c/chromium/src/+/2983329

This solves two problems:
* Echo return loss stats weren't being gathered in Chrome, because they
  need to be taken from the audio processor attached to the track
  rather than the audio send stream.
* The standardized location is in RTCAudioSourceStats, not
  RTCMediaStreamTrackStats. For now, will populate the stats in both
  locations.

Bug: webrtc:12770
Change-Id: I3633ee428d07b283b0cc503a84d8fa2e79415dfb
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/223761
Reviewed-by: Henrik Boström <hbos@webrtc.org>
Commit-Queue: Taylor Brandstetter <deadbeef@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#34367}

api/stats/rtcstats_objects.h

diff --git a/api/stats/rtcstats_objects.h b/api/stats/rtcstats_objects.h
index fe6d658..cb8e25a 100644
--- a/api/stats/rtcstats_objects.h
+++ b/api/stats/rtcstats_objects.h
@@ -629,6 +629,8 @@
   RTCStatsMember<double> audio_level;
   RTCStatsMember<double> total_audio_energy;
   RTCStatsMember<double> total_samples_duration;
+  RTCStatsMember<double> echo_return_loss;
+  RTCStatsMember<double> echo_return_loss_enhancement;
 };
 
 // https://w3c.github.io/webrtc-stats/#dom-rtcvideosourcestats