External VNR speed improvement and more.

webrtc/modules/video_processing/video_denoiser.h

Index: webrtc/modules/video_processing/video_denoiser.h
diff --git a/webrtc/modules/video_processing/video_denoiser.h b/webrtc/modules/video_processing/video_denoiser.h
index 03b30d91c7f74087547a3f223ee12e61bcf289db..38ef23721548365e5cccec4fb723bea46697d93d 100644
--- a/webrtc/modules/video_processing/video_denoiser.h
+++ b/webrtc/modules/video_processing/video_denoiser.h
@@ -24,23 +24,20 @@ class VideoDenoiser {
   explicit VideoDenoiser(bool runtime_cpu_detection);
   void DenoiseFrame(const VideoFrame& frame,
                     VideoFrame* denoised_frame,
-                    VideoFrame* denoised_frame_track,
-                    int noise_level_prev);
+                    VideoFrame* denoised_frame_prev,
+                    bool noise_estimation_enabled);
 
  private:
   int width_;
   int height_;
   CpuType cpu_type_;
-  std::unique_ptr<DenoiseMetrics[]> metrics_;
   std::unique_ptr<DenoiserFilter> filter_;
   std::unique_ptr<NoiseEstimation> ne_;
   std::unique_ptr<uint8_t[]> d_status_;
-#if EXPERIMENTAL
-  std::unique_ptr<uint8_t[]> d_status_tmp1_;
-  std::unique_ptr<uint8_t[]> d_status_tmp2_;
-#endif
+  std::unique_ptr<uint8_t[]> d_status_red_;

[marpan, 2016/04/11 19:16:44]

why not use a better name here? 
does red mean moving edge block?

[jackychen_, 2016/04/12 17:02:53]

Done.

   std::unique_ptr<uint8_t[]> x_density_;
   std::unique_ptr<uint8_t[]> y_density_;
+  std::unique_ptr<DenoiserDecision[]> mb_filter_decision_;
 };
 
 }  // namespace webrtc