vconvert.h File Reference

#include <ptlib.h>
#include <ptlib/videoio.h>

Include dependency graph for vconvert.h:

Go to the source code of this file.

Classes
class	PColourConverterRegistration
	This class registers a colour conversion class. More...
class	PColourConverter
	This class defines a means to convert an image from one colour format to another. More...
class	PSynonymColour
	Define synonym colour format converter. More...
class	PSynonymColourRegistration
	Define synonym colour format registration. More...

Macros
#define	PCOLOUR_CONVERTER2(cls, ancestor, srcFmt, dstFmt)
	Declare a colour converter class with Convert() function. More...
#define	PCOLOUR_CONVERTER(cls, src, dst)   PCOLOUR_CONVERTER2(cls,PColourConverter,src,dst)
	Declare a colour converter class with Convert() function. More...
#define	PSYNONYM_COLOUR_CONVERTER(from, to)   static PSynonymColourRegistration p_##from##_##to##_registration_instance(#from,#to)
	Define synonym colour format. More...

Macro Definition Documentation

#define PCOLOUR_CONVERTER	(		cls,
			src,
			dst
	)		PCOLOUR_CONVERTER2(cls,PColourConverter,src,dst)

Declare a colour converter class with Convert() function.

This should only be used once and at the global scope level for each converter. It declares everything needs so only the body of the Convert() function need be added.

#define PCOLOUR_CONVERTER2	(		cls,
			ancestor,
			srcFmt,
			dstFmt
	)

Value:

class cls : public ancestor { \
  public: \
  cls(const PVideoFrameInfo & src, const PVideoFrameInfo & dst) \
    : ancestor(src, dst) { } \
  virtual PBoolean Convert(const BYTE *, BYTE *, PINDEX * = NULL); \
}; \
static class cls##_Registration : public PColourConverterRegistration { \
  public: cls##_Registration() \
    : PColourConverterRegistration(srcFmt,dstFmt) { } \
  protected: virtual PColourConverter * Create(const PVideoFrameInfo & src, const PVideoFrameInfo & dst) const; \
} p_##cls##_registration_instance; \
PColourConverter * cls##_Registration::Create(const PVideoFrameInfo & src, const PVideoFrameInfo & dst) const \
  { return new cls(src, dst); } \
PBoolean cls::Convert(const BYTE *srcFrameBuffer, BYTE *dstFrameBuffer, PINDEX * bytesReturned) \

Declare a colour converter class with Convert() function.

This should only be used once and at the global scope level for each converter. It declares everything needs so only the body of the Convert() function need be added.

#define PSYNONYM_COLOUR_CONVERTER	(		from,
			to
	)		static PSynonymColourRegistration p_##from##_##to##_registration_instance(#from,#to)

Define synonym colour format.

This is a class that defines for which no conversion is required between the specified colour format names.