Added the ability to adjust the AEC3 performance for large rooms

webrtc/modules/audio_processing/aec3/comfort_noise_generator_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 18 matching lines @@
 }
 
 }  // namespace
 
 #if RTC_DCHECK_IS_ON && GTEST_HAS_DEATH_TEST && !defined(WEBRTC_ANDROID)
 
 TEST(ComfortNoiseGenerator, NullLowerBandNoise) {
   std::array<float, kFftLengthBy2Plus1> N2;
   FftData noise;
   EXPECT_DEATH(ComfortNoiseGenerator(DetectOptimization())
-                   .Compute(AecState(), N2, nullptr, &noise),
+                   .Compute(AecState(0.f), N2, nullptr, &noise),
                "");
 }
 
 TEST(ComfortNoiseGenerator, NullUpperBandNoise) {
   std::array<float, kFftLengthBy2Plus1> N2;
   FftData noise;
   EXPECT_DEATH(ComfortNoiseGenerator(DetectOptimization())
-                   .Compute(AecState(), N2, &noise, nullptr),
+                   .Compute(AecState(0.f), N2, &noise, nullptr),
                "");
 }
 
 #endif
 
 #if defined(WEBRTC_ARCH_X86_FAMILY)
 // Verifies that the optimized methods are bitexact to their reference
 // counterparts.
 TEST(ComfortNoiseGenerator, TestOptimizations) {
   if (WebRtc_GetCPUInfo(kSSE2) != 0) {
@@ skipping 26 matching lines @@
                     0.00001f);
       }
     }
   }
 }
 
 #endif
 
 TEST(ComfortNoiseGenerator, CorrectLevel) {
   ComfortNoiseGenerator cng(DetectOptimization());
-  AecState aec_state;
+  AecState aec_state(0.f);
 
   std::array<float, kFftLengthBy2Plus1> N2;
   N2.fill(1000.f * 1000.f);
 
   FftData n_lower;
   FftData n_upper;
   n_lower.re.fill(0.f);
   n_lower.im.fill(0.f);
   n_upper.re.fill(0.f);
   n_upper.im.fill(0.f);
 
   // Ensure instantaneous updata to nonzero noise.
   cng.Compute(aec_state, N2, &n_lower, &n_upper);
   EXPECT_LT(0.f, Power(n_lower));
   EXPECT_LT(0.f, Power(n_upper));
 
   for (int k = 0; k < 10000; ++k) {
     cng.Compute(aec_state, N2, &n_lower, &n_upper);
   }
   EXPECT_NEAR(N2[0], Power(n_lower), N2[0] / 10.f);
   EXPECT_NEAR(N2[0], Power(n_upper), N2[0] / 10.f);
 }
 
 }  // namespace aec3
 }  // namespace webrtc