text: /*
   *  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/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;
    virtual int32_t ResampleFrame(const VideoFrame& inFrame,
                                  VideoFrame* outFrame) = 0;
    virtual int32_t TargetWidth() = 0;
    virtual int32_t TargetHeight() = 0;
    virtual bool ApplyResample(int32_t width, int32_t height) = 0;
  };
  
  class VPMSimpleSpatialResampler : public VPMSpatialResampler {
   public:
    VPMSimpleSpatialResampler();
    ~VPMSimpleSpatialResampler();
    virtual int32_t SetTargetFrameSize(int32_t width, int32_t height);
    virtual void SetInputFrameResampleMode(VideoFrameResampling resampling_mode);
    virtual void Reset();
    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_;
    I420BufferPool buffer_pool_;
  };
  
  }  // namespace webrtc
  
  #endif  // WEBRTC_MODULES_VIDEO_PROCESSING_SPATIAL_RESAMPLER_H_
  