Major AEC3 render pipeline changes

webrtc/modules/audio_processing/aec3/render_delay_controller.h

Index: webrtc/modules/audio_processing/aec3/render_delay_controller.h
diff --git a/webrtc/modules/audio_processing/aec3/render_delay_controller.h b/webrtc/modules/audio_processing/aec3/render_delay_controller.h
index b22a5fde16d3503c8976108e96e285bc9cc0ea81..469d571ddbfec9bf58908fb3fd7cc2d88fc51315 100644
--- a/webrtc/modules/audio_processing/aec3/render_delay_controller.h
+++ b/webrtc/modules/audio_processing/aec3/render_delay_controller.h
@@ -13,6 +13,7 @@
 
 #include "webrtc/base/array_view.h"
 #include "webrtc/base/optional.h"
+#include "webrtc/modules/audio_processing/aec3/downsampled_render_buffer.h"
 #include "webrtc/modules/audio_processing/aec3/render_delay_buffer.h"
 #include "webrtc/modules/audio_processing/logging/apm_data_dumper.h"
 
@@ -21,16 +22,18 @@ namespace webrtc {
 // Class for aligning the render and capture signal using a RenderDelayBuffer.
 class RenderDelayController {
  public:
-  static RenderDelayController* Create(
-      int sample_rate_hz,
-      const RenderDelayBuffer& render_delay_buffer);
+  static RenderDelayController* Create(int sample_rate_hz);
   virtual ~RenderDelayController() = default;
 
-  // Aligns the render buffer content with the capture signal.
-  virtual size_t GetDelay(rtc::ArrayView<const float> capture) = 0;
+  // Resets the delay controller.
+  virtual void Reset() = 0;
+
+  // Receives the externally used delay.
+  virtual void SetDelay(size_t render_delay) = 0;
 
-  // Analyzes the render signal and returns false if there is a buffer overrun.
-  virtual bool AnalyzeRender(rtc::ArrayView<const float> render) = 0;
+  // Aligns the render buffer content with the capture signal.
+  virtual size_t GetDelay(const DownsampledRenderBuffer& render_buffer,
+                          rtc::ArrayView<const float> capture) = 0;
 
   // Returns an approximate value for the headroom in the buffer alignment.
   virtual rtc::Optional<size_t> AlignmentHeadroomSamples() const = 0;