Pulling AEC divergent filter fraction.

webrtc/modules/audio_processing/aec/echo_cancellation.cc

 /*
  *  Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 423 matching lines @@
 }
 
 int WebRtcAec_GetMetrics(void* handle, AecMetrics* metrics) {
   const float kUpWeight = 0.7f;
   float dtmp;
   int stmp;
   Aec* self = reinterpret_cast<Aec*>(handle);
   Stats erl;
   Stats erle;
   Stats a_nlp;
+  float divergent_filter_fraction;
 
   if (handle == NULL) {
     return -1;
   }
   if (metrics == NULL) {
     return AEC_NULL_POINTER_ERROR;
   }
   if (self->initFlag != initCheck) {
     return AEC_UNINITIALIZED_ERROR;
   }
 
-  WebRtcAec_GetEchoStats(self->aec, &erl, &erle, &a_nlp);
+  WebRtcAec_GetEchoStats(self->aec, &erl, &erle, &a_nlp,
+                         &divergent_filter_fraction);

[peah-webrtc, 2016/04/07 11:14:48]

I cannot see that divergent_filter_fraction is used anywhere.

It should be propagated to the metrics struct, right?

[minyue-webrtc, 2016/04/07 11:22:53]

Good catch. My bad. now fixed

 
   // ERL
   metrics->erl.instant = static_cast<int>(erl.instant);
 
   if ((erl.himean > kOffsetLevel) && (erl.average > kOffsetLevel)) {
     // Use a mix between regular average and upper part average.
     dtmp = kUpWeight * erl.himean + (1 - kUpWeight) * erl.average;
     metrics->erl.average = static_cast<int>(dtmp);
   } else {
     metrics->erl.average = kOffsetLevel;
@@ skipping 411 matching lines @@
   } else {
     self->timeForDelayChange = 0;
   }
   self->lastDelayDiff = delay_difference;
 
   if (self->timeForDelayChange > 25) {
     self->knownDelay = WEBRTC_SPL_MAX((int)self->filtDelay - 256, 0);
   }
 }
 }  // namespace webrtc