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/** \file     VideoIOYuv.h
    \brief    YUV file I/O class (header)
*/

#ifndef __VIDEOIOYUV__
#define __VIDEOIOYUV__

#include <stdio.h>
#include <fstream>
#include <iostream>
#include "CommonLib/CommonDef.h"
#include "CommonLib/Unit.h"

using namespace std;

// ====================================================================================================================
// Class definition
// ====================================================================================================================

/// YUV file I/O class
class VideoIOYuv
{
private:
  fstream   m_cHandle;                                      ///< file handle
  Int       m_fileBitdepth[MAX_NUM_CHANNEL_TYPE]; ///< bitdepth of input/output video file
  Int       m_MSBExtendedBitDepth[MAX_NUM_CHANNEL_TYPE];  ///< bitdepth after addition of MSBs (with value 0)
  Int       m_bitdepthShift[MAX_NUM_CHANNEL_TYPE];  ///< number of bits to increase or decrease image by before/after write/read

public:
  VideoIOYuv()           {}
  virtual ~VideoIOYuv()  {}

  Void  open  ( const std::string &fileName, Bool bWriteMode, const Int fileBitDepth[MAX_NUM_CHANNEL_TYPE], const Int MSBExtendedBitDepth[MAX_NUM_CHANNEL_TYPE], const Int internalBitDepth[MAX_NUM_CHANNEL_TYPE] ); ///< open or create file
  Void  close ();                                           ///< close file

  Void skipFrames(UInt numFrames, UInt width, UInt height, ChromaFormat format);

  // if fileFormat<NUM_CHROMA_FORMAT, the format of the file is that format specified, else it is the format of the PicYuv.


  // If fileFormat=NUM_CHROMA_FORMAT, use the format defined by pPicYuvTrueOrg
  Bool  read ( PelUnitBuf& pic, PelUnitBuf& picOrg, const InputColourSpaceConversion ipcsc, Int aiPad[2], ChromaFormat fileFormat=NUM_CHROMA_FORMAT, const Bool bClipToRec709=false );     ///< read one frame with padding parameter

  // If fileFormat=NUM_CHROMA_FORMAT, use the format defined by pPicYuv
  Bool  write( const CPelUnitBuf& pic,
               const InputColourSpaceConversion ipCSC, Int confLeft = 0, Int confRight = 0, Int confTop = 0, Int confBottom = 0, ChromaFormat format = NUM_CHROMA_FORMAT, const Bool bClipToRec709 = false ); ///< write one YUV frame with padding parameter

  // If fileFormat=NUM_CHROMA_FORMAT, use the format defined by pPicYuvTop and pPicYuvBottom
  Bool  write( const CPelUnitBuf& picTop, const CPelUnitBuf& picBot, const InputColourSpaceConversion ipCSC, Int confLeft=0, Int confRight=0, Int confTop=0, Int confBottom=0, ChromaFormat fileFormat=NUM_CHROMA_FORMAT, const Bool isTff=false, const Bool bClipToRec709=false);
  static Void ColourSpaceConvert(const CPelUnitBuf &src, PelUnitBuf &dest, const InputColourSpaceConversion conversion, Bool bIsForwards);

  Bool  isEof ();                                           ///< check for end-of-file
  Bool  isFail();                                           ///< check for failure


};

#endif // __VIDEOIOYUV__

