tree ec7777cd21a14e9f77d25bfa10f37e430ae4024a
parent 3041eb21e9c26277d6d80b7d6b0217f956b80dcb
author Hanna Silen <silen@webrtc.org> 1635512145 +0200
committer WebRTC LUCI CQ <webrtc-scoped@luci-project-accounts.iam.gserviceaccount.com> 1635921153 +0000

Add AnalogGainStatsReporter to compute and report analog gain statistics

Implement AnalogGainStatsReporter and add it in AudioProcessingImpl.
This class computes statistics for analog gain updates and
periodically reports them into a histogram.

The added histograms for analog gain update statistics:

 - WebRTC.Audio.ApmAnalogGainDecreaseRate
 - WebRTC.Audio.ApmAnalogGainIncreaseRate
 - WebRTC.Audio.ApmAnalogGainUpdateRate
 - WebRTC.Audio.ApmAnalogGainDecreaseAverage
 - WebRTC.Audio.ApmAnalogGainIncreaseAverage
 - WebRTC.Audio.ApmAnalogGainUpdateAverage

The histograms are defined in
https://chromium-review.googlesource.com/c/chromium/src/+/3207987

Bug: webrtc:12774
Change-Id: I3c58d4bb3eb034a11c3f39ab8edb2bc67c5fd5e4
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/234140
Commit-Queue: Hanna Silen <silen@webrtc.org>
Reviewed-by: Per Åhgren <peah@webrtc.org>
Reviewed-by: Alessio Bazzica <alessiob@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#35301}