Lock scheme #4: Introduced the render sample queue for the aec and aecm

webrtc/modules/audio_processing/audio_processing_impl.cc

Index: webrtc/modules/audio_processing/audio_processing_impl.cc
diff --git a/webrtc/modules/audio_processing/audio_processing_impl.cc b/webrtc/modules/audio_processing/audio_processing_impl.cc
index 668ec11e91da4165a2fe5815907296d10f7ad213..0daaf1f449d08ff5648d2c8f894587561ec26d79 100644
--- a/webrtc/modules/audio_processing/audio_processing_impl.cc
+++ b/webrtc/modules/audio_processing/audio_processing_impl.cc
@@ -530,6 +530,9 @@ int AudioProcessingImpl::ProcessStream(const float* const* src,
     return kNullPointerError;
   }
 
+  echo_cancellation_->ReadQueuedRenderData();
+  echo_control_mobile_->ReadQueuedRenderData();
+
   ProcessingConfig processing_config = api_format_;
   processing_config.input_stream() = input_config;
   processing_config.output_stream() = output_config;
@@ -571,6 +574,9 @@ int AudioProcessingImpl::ProcessStream(const float* const* src,
 
 int AudioProcessingImpl::ProcessStream(AudioFrame* frame) {
   CriticalSectionScoped crit_scoped(crit_);
+  echo_cancellation_->ReadQueuedRenderData();
+  echo_control_mobile_->ReadQueuedRenderData();
+
   if (!frame) {
     return kNullPointerError;
   }