#ifndef YUVFORMAT_HEADER
#define YUVFORMAT_HEADER 1
////////////////////////////////////////////////////////////
//! author="Charles Galambos"
//! docentry="Image.Image IO"
//! date="29/10/98"
//! rcsid="$Id: yuvFormat.hh,v 1.4 1999/12/02 11:33:54 ees1cg Exp $"
//! file="amma/Image/VidIO/yuvFormat.hh"
//! example=exImgSeq.cc
//! lib=VidIO

#include "amma/DP/FileFormat.hh"
#include "amma/Image.hh"
#include "amma/YUVValue.hh"

//! userlevel=Develop
//: YUV File format information.

class FileFormatYUVBodyC : public FileFormatBodyC {
public:
  FileFormatYUVBodyC(const StringC &vName,const Index2dC &vSize);
  //: Constructor.
  
  virtual const type_info &ProbeLoad(IStreamC &in,const type_info &obj_type) const;
  //: Is stream in std stream format ?
  
  virtual const type_info &ProbeLoad(const FilenameC &filename,IStreamC &in,const type_info &obj_type) const;
  //: Probe for load.

  virtual const type_info &ProbeSave(const FilenameC &filename,const type_info &obj_type,BooleanT forceFormat) const;
  //: Probe for Save.
  
  virtual DPIPortBaseC CreateInput(IStreamC &in,const type_info &obj_type) const;
  //: Create a input port for loading.
  // This creates a plain YUV stream.
  // Will create an Invalid port if not supported.
  
  virtual DPOPortBaseC CreateOutput(OStreamC &out,const type_info &obj_type) const;
  //: Create a output port for saving.
  // This creates a plain YUV stream.
  // Will create an Invalid port if not supported.
  
  virtual DPIPortBaseC CreateInput(const FilenameC &filename,const type_info &obj_type) const;
  //: Create a input port for loading from file 'filename'.
  // Will create an Invalid port if not supported. <p>
  
  virtual DPOPortBaseC CreateOutput(const FilenameC &filename,const type_info &obj_type) const;
  //: Create a output port for saving to file 'filename'..
  // Will create an Invalid port if not supported. <p>
  
  virtual const type_info &DefaultType() const; 
  //: Get prefered IO type.
  
  virtual IntT Priority() const { return 1; }
  //: Find the priority of the format. the higher the better.
  // Default is zero, this is better than the default (streams.)
  
  virtual BooleanT IsStream() const { return FALSE; }
  //: Test if format is a fully streamable.
  // i.e. check if you can read/write more than object object.
  // This could easly be, but the abakas doesn't use it like that.
  // (I think.)
  
protected:
  StringC vName;  // Variant name.
  Index2dC vSize; // Variant image size.
};

/////////////////////////////
//! userlevel=Advanced
//: Create an instance of a YUV File Format.

class FileFormatYUVC : public FileFormatC<ImageC<ByteYUVValueC> > {
public:
  FileFormatYUVC(const StringC &vName,const Index2dC &vSize)
    : FileFormatC<ImageC<ByteYUVValueC> >(*new FileFormatYUVBodyC(vName,vSize))
  {}
};

#endif