commit b24c00f02d90261a97fac77c393304f2c170bcc1
author Sam Zackrisson <saza@webrtc.org> Mon Nov 26 16:18:25 2018 +0100
committer Commit Bot <commit-bot@chromium.org> Mon Nov 26 15:52:14 2018 +0000
tree ff015be683723bd141e3f6316eb945b3a5c9bef0
parent 2918d4e309ed61b51d41c9f3f7a016b6ce5be703

Add AudioProcessingCaptureStats and a level estimator replacement

This adds an interface for accessing stats on the capture stream, and
adds a level estimator to report one of the stats.

Bug: webrtc:9947
Change-Id: Id472534fa2e04d46c9ab700671f620584a246afb
Reviewed-on: https://webrtc-review.googlesource.com/c/109587
Commit-Queue: Sam Zackrisson <saza@webrtc.org>
Reviewed-by: Per Åhgren <peah@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#25786}

modules/audio_processing/include/audio_processing_statistics.h

diff --git a/modules/audio_processing/include/audio_processing_statistics.h b/modules/audio_processing/include/audio_processing_statistics.h
index 2ff2009..683db05 100644
--- a/modules/audio_processing/include/audio_processing_statistics.h
+++ b/modules/audio_processing/include/audio_processing_statistics.h
@@ -24,6 +24,14 @@
   AudioProcessingStats(const AudioProcessingStats& other);
   ~AudioProcessingStats();
 
+  // The root mean square (RMS) level in dBFS (decibels from digital
+  // full-scale) of the last capture frame, after processing. It is
+  // constrained to [-127, 0].
+  // The computation follows: https://tools.ietf.org/html/rfc6465
+  // with the intent that it can provide the RTP audio level indication.
+  // Only reported if level estimation is enabled in AudioProcessing::Config.
+  absl::optional<int> output_rms_dbfs;
+
   // AEC Statistics.
   // ERL = 10log_10(P_far / P_echo)
   absl::optional<double> echo_return_loss;