Add adaptive notch filter to remove narrowband echo components in AEC3

webrtc/modules/audio_processing/aec3/suppression_gain_unittest.cc

 /*
  *  Copyright (c) 2017 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 24 matching lines @@
                                 3, std::vector<float>(kBlockSize, 0.f)),
                             false, &high_bands_gain, nullptr),
                "");
 }
 
 #endif
 
 // Does a sanity check that the gains are correctly computed.
 TEST(SuppressionGain, BasicGainComputation) {
   SuppressionGain suppression_gain(DetectOptimization());
+  RenderSignalAnalyzer analyzer;
   float high_bands_gain;
   std::array<float, kFftLengthBy2Plus1> E2;
   std::array<float, kFftLengthBy2Plus1> R2;
   std::array<float, kFftLengthBy2Plus1> N2;
   std::array<float, kFftLengthBy2Plus1> g;
   std::vector<std::vector<float>> x(1, std::vector<float>(kBlockSize, 0.f));
 
   // Ensure that a strong noise is detected to mask any echoes.
   E2.fill(10.f);
   R2.fill(0.1f);
   N2.fill(100.f);
   for (int k = 0; k < 10; ++k) {
-    suppression_gain.GetGain(E2, R2, N2, false, x, false, &high_bands_gain, &g);
+    suppression_gain.GetGain(E2, R2, N2, analyzer, false, x, false,
+                             &high_bands_gain, &g);
   }
   std::for_each(g.begin(), g.end(),
                 [](float a) { EXPECT_NEAR(1.f, a, 0.001); });
 
   // Ensure that a strong nearend is detected to mask any echoes.
   E2.fill(100.f);
   R2.fill(0.1f);
   N2.fill(0.f);
   for (int k = 0; k < 10; ++k) {
-    suppression_gain.GetGain(E2, R2, N2, false, x, false, &high_bands_gain, &g);
+    suppression_gain.GetGain(E2, R2, N2, analyzer, false, x, false,
+                             &high_bands_gain, &g);
   }
   std::for_each(g.begin(), g.end(),
                 [](float a) { EXPECT_NEAR(1.f, a, 0.001); });
 
   // Ensure that a strong echo is suppressed.
   E2.fill(1000000000.f);
   R2.fill(10000000000000.f);
   N2.fill(0.f);
   for (int k = 0; k < 10; ++k) {
-    suppression_gain.GetGain(E2, R2, N2, false, x, false, &high_bands_gain, &g);
+    suppression_gain.GetGain(E2, R2, N2, analyzer, false, x, false,
+                             &high_bands_gain, &g);
   }
   std::for_each(g.begin(), g.end(),
                 [](float a) { EXPECT_NEAR(0.f, a, 0.001); });
 
   // Verify the functionality for forcing a zero gain.
-  suppression_gain.GetGain(E2, R2, N2, false, x, true, &high_bands_gain, &g);
+  suppression_gain.GetGain(E2, R2, N2, analyzer, false, x, true,
+                           &high_bands_gain, &g);
   std::for_each(g.begin(), g.end(), [](float a) { EXPECT_FLOAT_EQ(0.f, a); });
   EXPECT_FLOAT_EQ(0.f, high_bands_gain);
 }
 
 }  // namespace aec3
 }  // namespace webrtc