itkVideoToVideoFilter.h

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/*=========================================================================
 *
 *  Copyright NumFOCUS
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *         https://www.apache.org/licenses/LICENSE-2.0.txt
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 *=========================================================================*/
#ifndef itkVideoToVideoFilter_h
#define itkVideoToVideoFilter_h
 
#include "itkVideoSource.h"
#include "itkVideoStream.h"
 
namespace itk
{

template <typename TInputVideoStream, typename TOutputVideoStream>
class ITK_TEMPLATE_EXPORT VideoToVideoFilter : public VideoSource<TOutputVideoStream>
{
public:
  ITK_DISALLOW_COPY_AND_MOVE(VideoToVideoFilter);

  using InputVideoStreamType = TInputVideoStream;
  using OutputVideoStreamType = TOutputVideoStream;
  using Self = VideoToVideoFilter<InputVideoStreamType, OutputVideoStreamType>;
  using Superclass = VideoSource<OutputVideoStreamType>;
  using Pointer = SmartPointer<Self>;
  using ConstPointer = SmartPointer<const Self>;
  using ConstWeakPointer = WeakPointer<const Self>;

  using typename Superclass::OutputFrameType;
  using typename Superclass::OutputFrameSpatialRegionType;

  using InputFrameType = typename InputVideoStreamType::FrameType;
  using InputFrameSpatialRegionType = typename InputVideoStreamType::SpatialRegionType;
  using InputFrameIndexType = typename InputVideoStreamType::IndexType;
  using InputFramePixelType = typename InputVideoStreamType::PixelType;
  using InputFramePointType = typename InputVideoStreamType::PointType;
  using InputFrameSpacingType = typename InputVideoStreamType::SpacingType;
  using InputFrameSizeType = typename InputVideoStreamType::SizeType;
  using InputFrameDirectionType = typename InputVideoStreamType::DirectionType;
 
  itkNewMacro(Self);

  itkOverrideGetNameOfClassMacro(VideoToVideoFilter);

  using Superclass::SetInput;
  virtual void
  SetInput(const InputVideoStreamType * videoStream);
 
  virtual void
  SetInput(unsigned int idx, const InputVideoStreamType * videoStream);

  const InputVideoStreamType *
  GetInput() const;
 
  const InputVideoStreamType *
  GetInput(unsigned int idx) const;

  void
  UpdateOutputInformation() override;
 
protected:
  InputVideoStreamType *
  GetInput();
 
  InputVideoStreamType *
  GetInput(unsigned int idx);

  void
  GenerateOutputRequestedRegion(DataObject * output) override;

  void
  GenerateInputRequestedRegion() override;

  void
  BeforeTemporalStreamingGenerateData() override;
 
  VideoToVideoFilter();
  ~VideoToVideoFilter() override = default;
 
  void
  PrintSelf(std::ostream & os, Indent indent) const override;
 
private:
}; // end class VideoToVideoFilter
 
} // end namespace itk
 
#ifndef ITK_MANUAL_INSTANTIATION
#  include "itkVideoToVideoFilter.hxx"
#endif
 
#endif