Standalone denoiser (off by default).

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
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+/*
+ *  Copyright (c) 2015 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.
+ */
+
+#ifndef WEBRTC_MODULES_VIDEO_PROCESSING_VIDEO_DENOISER_H_
+#define WEBRTC_MODULES_VIDEO_PROCESSING_VIDEO_DENOISER_H_
+
+#include "webrtc/modules/video_processing/util/denoiser_filter.h"
+#include "webrtc/modules/video_processing/util/skin_detection.h"
+
+namespace webrtc {
+
+class VideoDenoiser {
+ public:
+  VideoDenoiser();
+  void DenoiseFrame(const VideoFrame& frame, VideoFrame* denoised_frame);
+
+ private:
+  void TrailingReduction(int mb_rows, int mb_cols, const uint8_t* y_src,
+                         int stride_y, uint8_t* y_dst);
+  int width_;
+  int height_;
+  rtc::scoped_ptr<DenoiseMetrics[]> metrics_;
+  rtc::scoped_ptr<DenoiserFilter> filter_;
+};
+
+}  // namespace webrtc
+
+#endif  // WEBRTC_MODULES_VIDEO_PROCESSING_VIDEO_DENOISER_H_