Added the ability to adjust the AEC3 performance for large rooms

webrtc/modules/audio_processing/aec3/echo_remover.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/echo_remover.h"
@@ skipping 31 matching lines @@
                      std::array<float, kFftLengthBy2Plus1>* S2) {
   for (size_t k = 0; k < E.re.size(); ++k) {
     (*S2)[k] = (Y.re[k] - E.re[k]) * (Y.re[k] - E.re[k]) +
                (Y.im[k] - E.im[k]) * (Y.im[k] - E.im[k]);
   }
 }
 
 // Class for removing the echo from the capture signal.
 class EchoRemoverImpl final : public EchoRemover {
  public:
-  explicit EchoRemoverImpl(int sample_rate_hz);
+  explicit EchoRemoverImpl(
+      const AudioProcessing::Config::EchoCanceller3& config,
+      int sample_rate_hz);
   ~EchoRemoverImpl() override;
 
   // Removes the echo from a block of samples from the capture signal. The
   // supplied render signal is assumed to be pre-aligned with the capture
   // signal.
   void ProcessCapture(
       const rtc::Optional<size_t>& external_echo_path_delay_estimate,
       const EchoPathVariability& echo_path_variability,
       bool capture_signal_saturation,
       const RenderBuffer& render_buffer,
@@ skipping 20 matching lines @@
   ResidualEchoEstimator residual_echo_estimator_;
   bool echo_leakage_detected_ = false;
   AecState aec_state_;
   EchoRemoverMetrics metrics_;
 
   RTC_DISALLOW_COPY_AND_ASSIGN(EchoRemoverImpl);
 };
 
 int EchoRemoverImpl::instance_count_ = 0;
 
-EchoRemoverImpl::EchoRemoverImpl(int sample_rate_hz)
+EchoRemoverImpl::EchoRemoverImpl(
+    const AudioProcessing::Config::EchoCanceller3& config,
+    int sample_rate_hz)
     : fft_(),
       data_dumper_(
           new ApmDataDumper(rtc::AtomicOps::Increment(&instance_count_))),
       optimization_(DetectOptimization()),
       sample_rate_hz_(sample_rate_hz),
       subtractor_(data_dumper_.get(), optimization_),
       suppression_gain_(optimization_),
       cng_(optimization_),
-      suppression_filter_(sample_rate_hz_) {
+      suppression_filter_(sample_rate_hz_),
+      aec_state_(config.echo_decay) {
   RTC_DCHECK(ValidFullBandRate(sample_rate_hz));
 }
 
 EchoRemoverImpl::~EchoRemoverImpl() = default;
 
 void EchoRemoverImpl::ProcessCapture(
     const rtc::Optional<size_t>& echo_path_delay_samples,
     const EchoPathVariability& echo_path_variability,
     bool capture_signal_saturation,
     const RenderBuffer& render_buffer,
@@ skipping 101 matching lines @@
       aec_state_.FilterDelay() ? *aec_state_.FilterDelay() : -1);
   data_dumper_->DumpRaw(
       "aec3_external_delay",
       aec_state_.ExternalDelay() ? *aec_state_.ExternalDelay() : -1);
   data_dumper_->DumpRaw("aec3_capture_saturation",
                         aec_state_.SaturatedCapture() ? 1 : 0);
 }
 
 }  // namespace
 
-EchoRemover* EchoRemover::Create(int sample_rate_hz) {
-  return new EchoRemoverImpl(sample_rate_hz);
+EchoRemover* EchoRemover::Create(
+    const AudioProcessing::Config::EchoCanceller3& config,
+    int sample_rate_hz) {
+  return new EchoRemoverImpl(config, sample_rate_hz);
 }
 
 }  // namespace webrtc