Major updates to the echo removal functionality 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.
  */
 
 #include "webrtc/modules/audio_processing/aec3/suppression_gain.h"
 
 #include "webrtc/base/checks.h"
 #include "webrtc/system_wrappers/include/cpu_features_wrapper.h"
 #include "webrtc/test/gtest.h"
 #include "webrtc/typedefs.h"
 
 namespace webrtc {
 namespace aec3 {
 
 #if RTC_DCHECK_IS_ON && GTEST_HAS_DEATH_TEST && !defined(WEBRTC_ANDROID)
 
 // Verifies that the check for non-null output gains works.
 TEST(SuppressionGain, NullOutputGains) {
   std::array<float, kFftLengthBy2Plus1> E2;
   std::array<float, kFftLengthBy2Plus1> R2;
   std::array<float, kFftLengthBy2Plus1> N2;
-  EXPECT_DEATH(
-      SuppressionGain(DetectOptimization()).GetGain(E2, R2, N2, 0.1f, nullptr),
-      "");
+  E2.fill(0.f);
+  R2.fill(0.f);
+  N2.fill(0.f);
+  float high_bands_gain;
+  EXPECT_DEATH(SuppressionGain(DetectOptimization())
+                   .GetGain(E2, R2, N2, false,
+                            std::vector<std::vector<float>>(
+                                3, std::vector<float>(kBlockSize, 0.f)),
+                            1, &high_bands_gain, nullptr),
+               "");
 }
 
 #endif
 
 #if defined(WEBRTC_ARCH_X86_FAMILY)
 // Verifies that the optimized methods are bitexact to their reference
 // counterparts.
 TEST(SuppressionGain, TestOptimizations) {
   if (WebRtc_GetCPUInfo(kSSE2) != 0) {
     std::array<float, kFftLengthBy2 - 1> G2_old;
@@ skipping 61 matching lines @@
         EXPECT_NEAR(g[j], g_SSE2[j], 0.0000001f);
       }
     }
   }
 }
 #endif
 
 // Does a sanity check that the gains are correctly computed.
 TEST(SuppressionGain, BasicGainComputation) {
   SuppressionGain suppression_gain(DetectOptimization());
+  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, 0.1f, &g);
+    suppression_gain.GetGain(E2, R2, N2, false, x, 1, &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, 0.1f, &g);
+    suppression_gain.GetGain(E2, R2, N2, false, x, 1, &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(0.1f);
   R2.fill(100.f);
   N2.fill(0.f);
   for (int k = 0; k < 10; ++k) {
-    suppression_gain.GetGain(E2, R2, N2, 0.1f, &g);
+    suppression_gain.GetGain(E2, R2, N2, false, x, 1, &high_bands_gain, &g);
   }
   std::for_each(g.begin(), g.end(),
                 [](float a) { EXPECT_NEAR(0.f, a, 0.001); });
 }
 
 }  // namespace aec3
 }  // namespace webrtc