Initial VideoProcessing refactoring.

webrtc/modules/video_processing/frame_preprocessor.h

 /*
  *  Copyright (c) 2012 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.
  */
 
-/*
- * frame_preprocessor.h
- */
 #ifndef WEBRTC_MODULES_VIDEO_PROCESSING_FRAME_PREPROCESSOR_H_
 #define WEBRTC_MODULES_VIDEO_PROCESSING_FRAME_PREPROCESSOR_H_
 
+#include "webrtc/base/scoped_ptr.h"
 #include "webrtc/modules/video_processing/include/video_processing.h"
 #include "webrtc/modules/video_processing/content_analysis.h"
 #include "webrtc/modules/video_processing/spatial_resampler.h"
 #include "webrtc/modules/video_processing/video_decimator.h"
-#include "webrtc/modules/video_processing/video_denoiser.h"
 #include "webrtc/typedefs.h"
 #include "webrtc/video_frame.h"
 
 namespace webrtc {
 
+class VideoDenoiser;
+
+// All pointers/members in this class are assumed to be protected by the class
+// owner.
 class VPMFramePreprocessor {
  public:
   VPMFramePreprocessor();
   ~VPMFramePreprocessor();
 
   void Reset();
 
   // Enable temporal decimation.
   void EnableTemporalDecimation(bool enable);
 
   void SetInputFrameResampleMode(VideoFrameResampling resampling_mode);
 
   // Enable content analysis.
   void EnableContentAnalysis(bool enable);
 
   // Set target resolution: frame rate and dimension.
   int32_t SetTargetResolution(uint32_t width, uint32_t height,
                               uint32_t frame_rate);
 
   // Set target frame rate.
   void SetTargetFramerate(int frame_rate);
 
   // Update incoming frame rate/dimension.
   void UpdateIncomingframe_rate();
 
   int32_t updateIncomingFrameSize(uint32_t width, uint32_t height);
 
   // Set decimated values: frame rate/dimension.
-  uint32_t Decimatedframe_rate();
-  uint32_t DecimatedWidth() const;
-  uint32_t DecimatedHeight() const;
+  uint32_t GetDecimatedFrameRate();
+  uint32_t GetDecimatedWidth() const;
+  uint32_t GetDecimatedHeight() const;
 
   // Preprocess output:
-  int32_t PreprocessFrame(const VideoFrame& frame,
-                          VideoFrame** processed_frame);
-  VideoContentMetrics* ContentMetrics() const;
+  void EnableDenosing(bool enable);
+  const VideoFrame* PreprocessFrame(const VideoFrame& frame);
+  VideoContentMetrics* GetContentMetrics() const;
 
  private:
   // The content does not change so much every frame, so to reduce complexity
   // we can compute new content metrics every |kSkipFrameCA| frames.
   enum { kSkipFrameCA = 2 };
 
   VideoContentMetrics* content_metrics_;
   VideoFrame denoised_frame_;
   VideoFrame resampled_frame_;
   VPMSpatialResampler* spatial_resampler_;
   VPMContentAnalysis* ca_;
   VPMVideoDecimator* vd_;
-  VideoDenoiser* denoiser_;
+  rtc::scoped_ptr<VideoDenoiser> denoiser_;
   bool enable_ca_;
-  bool enable_denoising_;
-  int frame_cnt_;
-
+  uint32_t frame_cnt_;
 };
 
 }  // namespace webrtc
 
-#endif // WEBRTC_MODULES_VIDEO_PROCESSING_FRAME_PREPROCESSOR_H_
+#endif  // WEBRTC_MODULES_VIDEO_PROCESSING_FRAME_PREPROCESSOR_H_