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V4LDev Class Reference

Abstract interface to Video4Linux devices. More...

#include <v4ldev.h>

Inheritance diagram for V4LDev::

List of all members.

Public Methods
virtual	~V4LDev ()
virtual bool	isCamera () const
virtual bool	isTuner () const
virtual int	startCapture (int x, int y)
virtual int	stopCapture ()
virtual bool	overlayOn () const
virtual int	grab (V4LImage *buff, bool scale=true)
virtual int	signal () const
virtual int	setCaptureGeometry (const QRect &geom)
virtual int	setImageSize (int w, int h=-1)
virtual QString	name () const
virtual int	setBrightness (int x)
virtual int	brightness () const
virtual int	setColour (int x)
virtual int	colour () const
virtual int	setHue (int x)
virtual int	hue () const
virtual int	setContrast (int x)
virtual int	contrast () const
virtual int	setWhiteness (int x)
virtual int	whiteness () const
virtual int	setColourKey (unsigned long x)
virtual unsigned long	colourKey () const
virtual int	setSource (const QString &source)
virtual const QString	source () const
virtual QStringList	sources () const
virtual float	aspectRatio () const
virtual bool	canOverlay () const
virtual bool	canGrab () const
virtual bool	hasAudio () const
virtual int	enableAudio ()
virtual int	disableAudio ()
virtual bool	audioEnabled () const
virtual int	setInputFormat (int fmt)
virtual int	inputFormat () const
virtual void	addClip (const QRect &clip)
virtual void	clearClips ()
virtual void	reClip ()
Static Public Methods
V4LDev *	getDevice (const QString &dev)
Protected Methods
	V4LDev (int fd, const QString &name, int channels, int type, int minw, int minh, int maxw, int maxh)
int	initGrabbing ()
Protected Attributes
int	_fd
bool	_valid
QString	_name
bool	_overlaid
video_channel *	_channels
int	_minWidth
int	_minHeight
int	_maxWidth
int	_maxHeight
int	_type
float	_aspectRatio
int	format
QStringList	_sources
int	_source
int	_capW
int	_capH
bool	_hasAudio
bool	_isTuner
video_mmap *	_mmapData
video_mbuf	_mbuf
int	_mmapCurrentFrame
uchar *	_mmapBuf
bool	_grabNeedsInit
uchar *	_grabBuf
uchar *	_readBuf
int	_grabW
int	_grabH
int	_fmt
int	_bpp
QValueList< QRect >	_clips
video_clip	_cliprecs [MAX_CLIP_RECTS]

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Detailed Description

Abstract interface to Video4Linux devices.

Version:

Id:

v4ldev.h,v 1.18 2002/11/13 22:16:44 staikos Exp

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Member Function Documentation

V4LDev* V4LDev::getDevice (  const QString & dev )  [static]

Factory method that creates a V4LDev for the specified device file.

virtual bool V4LDev::isCamera (  )  const [virtual]

Returns true iff this device is a camera. Reimplemented in V4LCamera.

virtual bool V4LDev::isTuner (  )  const [virtual]

Returns true iff this device is a tuner. Reimplemented in V4LTuner.

virtual int V4LDev::startCapture (  int x, int y )  [virtual]

h = -1 => use aspect ratio.

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

• v4ldev.h

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