A descriptor for a v4l pixel format. More...

#include <gvcapturebuffer.h>

Public Types
enum	Type { rgb, yuv, grey }

Public Member Functions
	CaptureBufferFormat (unsigned int id_=0, const char *name_="", Type type_=rgb)
	Default constructor for an unusable, un-named rgb format.

	CaptureBufferFormat (unsigned int id_, const char *name_, Type type_, const CaptureBufferComponent &, const CaptureBufferComponent &, const CaptureBufferComponent &)
	Constructor for a named format. Use a string literal for the name.

bool	is_grey () const
	Returns true if grey colour components.

bool	is_rgb () const
	Returns true if rgb colour components.

bool	is_yuv () const
	Returns true if yuv colour components.

bool	is_simple () const
	Returns true for a packed rgb format with 24 bits per pixel.

const CaptureBufferComponent &	component (int c) const
	Returns the c'th colour component descriptor. More...

unsigned int	id () const
	Returns the id.

const char *	name () const
	Returns the name.

Type	type () const
	Returns the type.

Detailed Description

A descriptor for a v4l pixel format.

The descriptor, together with a scale structure, allow other classes to extract pixel values from a raw v4l buffer that is laid out in the way described.

Definition at line 218 of file gvcapturebuffer.h.

Member Function Documentation

const Gv::CaptureBufferComponent & Gv::CaptureBufferFormat::component ( int c ) const

inline

Returns the c'th colour component descriptor.

Every format has exactly three components; grey formats have a zero depth for two of them.

Definition at line 621 of file gvcapturebuffer.h.

The documentation for this class was generated from the following files:

/home/graeme/videotools/src/gvideo/gvcapturebuffer.h
/home/graeme/videotools/src/gvideo/gvcapturebuffer.cpp

Public Types

Public Member Functions

Detailed Description

Member Function Documentation