itkVXLVideoIO.h

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/*=========================================================================
 *
 *  Copyright Insight Software Consortium
 *
 *  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
 *
 *         http://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 itkVXLVideoIO_h
#define itkVXLVideoIO_h

// Define support for VXLVideo
#ifndef ITK_VIDEO_USE_VXL
#define ITK_VIDEO_USE_VXL
#endif

#ifdef _MSC_VER
#pragma warning ( disable : 4786 )
#endif

#include "itkVideoIOBase.h"
#include "vidl/vidl_ffmpeg_istream.h"
#include "vidl/vidl_ffmpeg_ostream.h"
#include "vidl/vidl_convert.h"
#include "vul/vul_reg_exp.h"

namespace itk
{
class VXLVideoIO:public VideoIOBase
{
public:
  ITK_DISALLOW_COPY_AND_ASSIGN(VXLVideoIO);

  using Self = VXLVideoIO;
  using Superclass = VideoIOBase;
  using Pointer = SmartPointer< Self >;

  using TemporalOffsetType = Superclass::TemporalOffsetType;
  using FrameOffsetType = Superclass::FrameOffsetType;
  using TemporalRatioType = Superclass::TemporalRatioType;
  using CameraIDType = Superclass::CameraIDType;
  itkNewMacro(Self);

  itkTypeMacro(VXLVideoIO, Superclass);

  void FinishReadingOrWriting() override;

  /*-------- This part of the interface deals with reading data. ------ */

  void SetReadFromFile() override;

  void SetReadFromCamera() override;

  bool CanReadFile(const char *) override;

  bool CanReadCamera( CameraIDType cameraID ) const override;

  void ReadImageInformation() override;

  void Read(void *buffer) override;


  bool SetNextFrameToRead( FrameOffsetType frameNumber) override;

  TemporalOffsetType GetPositionInMSec() const override;
  TemporalRatioType GetRatio() const override;
  FrameOffsetType GetFrameTotal() const override;
  TemporalRatioType GetFramesPerSecond() const override;
  FrameOffsetType  GetCurrentFrame() const override;
  FrameOffsetType  GetLastIFrame() const override;
  virtual FrameOffsetType GetIFrameInterval() const;

  virtual void SetCameraIndex(int idx);
  virtual int GetCameraIndex();


  /*-------- This part of the interfaces deals with writing data. ----- */

  bool CanWriteFile(const char *) override;

  void WriteImageInformation() override;

  void Write(const void *buffer) override;

  void SetWriterParameters(TemporalRatioType fps, const std::vector<SizeValueType>& dim, const char* fourCC,
                                   unsigned int nChannels, IOComponentType componentType) override;

protected:
  VXLVideoIO();
  ~VXLVideoIO();

  void PrintSelf(std::ostream & os, Indent indent) const override;

  void UpdateReaderProperties();

  void ResetMembers();

  void OpenReader();

  void OpenWriter();


  vidl_ffmpeg_ostream_params::encoder_type FourCCtoEncoderType(const char* fourCC);

  unsigned int GetNChannelsFromPixelFormat(vidl_pixel_format fmt);

  unsigned int GetSizeFromPixelFormat(vidl_pixel_format fmt);

  bool PixelFormatSupported(vidl_pixel_format fmt);

private:
  vidl_pixel_format                         m_PixelFormat;
  vidl_frame_sptr                           m_VIDLFrame;
  vidl_ffmpeg_istream*                      m_Reader;
  vidl_ffmpeg_ostream*                      m_Writer;
  vidl_ffmpeg_ostream_params::encoder_type  m_Encoder;


  int                 m_CameraIndex;
};
} // end namespace itk

#endif // itkVXLVideoIO_h