QCamV4L Class Reference

QCam implementation to acces a basic Video4Linux device. More...

#include <QCamV4L.hpp>

Inheritance diagram for QCamV4L:

[legend]Collaboration diagram for QCamV4L:

[legend]List of all members.

Public Member Functions
QCamFrame	yuvFrame () const
	return the frame in yuv 420P format.
const QSize &	size () const
	return the size of the current frame.
void	resize (const QSize &s)
	try to resize the current frame.
QWidget *	buildGUI (QWidget *parent)
	build the GUI
Protected Member Functions
virtual void	checkSize (int &x, int &y) const
	should be overloaded.
virtual const QSize *	getAllowedSize () const
	should be overloaded.
virtual int	getFrameRate () const
	return the frame rate of the camera.
Protected Attributes
video_mbuf	mmap_mbuf_
	mmap stuf

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Detailed Description

QCam implementation to acces a basic Video4Linux device.

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Member Function Documentation

QCamFrame QCamV4L::yuvFrame

(

)

const [inline, virtual]

return the frame in yuv 420P format.

it is the native format used by all algoithms.

Implements QCam.

void QCamV4L::resize

(

const QSize &

s

)

[virtual]

try to resize the current frame.

it can failed. size() must be called to know the real new size.

Implements QCam.

void QCamV4L::checkSize	(	int &	x,
		int &	y
	)			const [protected, virtual]

should be overloaded.

set x an y to allowed value.

Reimplemented in QCamOV511, and QCamVesta.

const QSize * QCamV4L::getAllowedSize

(

)

const [protected, virtual]

should be overloaded.

return the avaibles capture size.

Implements QCam.

Reimplemented in QCamVesta.

virtual int QCamV4L::getFrameRate

(

)

const [inline, protected, virtual]

return the frame rate of the camera.

is used if the select() system call is not avaible, by the timer used to probe the camera for a new frame

Reimplemented in QCamVesta.

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

• QCamV4L.hpp
• QCamV4L.cpp
• QCamV4LbestDevice.cpp

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