Refactor scaling.

webrtc/modules/video_processing/spatial_resampler.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.
  */
 
 #ifndef WEBRTC_MODULES_VIDEO_PROCESSING_SPATIAL_RESAMPLER_H_
 #define WEBRTC_MODULES_VIDEO_PROCESSING_SPATIAL_RESAMPLER_H_
 
 #include "webrtc/typedefs.h"
 
 #include "webrtc/modules/include/module_common_types.h"
 #include "webrtc/modules/video_processing/include/video_processing_defines.h"
 
-#include "webrtc/common_video/libyuv/include/scaler.h"
-#include "webrtc/common_video/libyuv/include/webrtc_libyuv.h"
+#include "webrtc/common_video/include/i420_buffer_pool.h"
+#include "webrtc/video_frame.h"
 
 namespace webrtc {
 
 class VPMSpatialResampler {
  public:
   virtual ~VPMSpatialResampler() {}
   virtual int32_t SetTargetFrameSize(int32_t width, int32_t height) = 0;
   virtual void SetInputFrameResampleMode(
       VideoFrameResampling resampling_mode) = 0;
   virtual void Reset() = 0;
@@ skipping 14 matching lines @@
   virtual int32_t ResampleFrame(const VideoFrame& inFrame,
                                 VideoFrame* outFrame);
   virtual int32_t TargetWidth();
   virtual int32_t TargetHeight();
   virtual bool ApplyResample(int32_t width, int32_t height);
 
  private:
   VideoFrameResampling resampling_mode_;
   int32_t target_width_;
   int32_t target_height_;
-  Scaler scaler_;
+  I420BufferPool buffer_pool_;
 };
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_MODULES_VIDEO_PROCESSING_SPATIAL_RESAMPLER_H_