vidl_v4l2_control_integer Class Reference

A class for handle a control of type integer. More...

#include <vidl_v4l2_control.h>

Inheritance diagram for vidl_v4l2_control_integer:

List of all members.

Public Member Functions
	vidl_v4l2_control_integer (const v4l2_queryctrl &ctr, int f)
int	minimum () const
	Minimum value of the control.
int	maximum () const
	Maximum value of the control.
int	step () const
	Step size.
int	default_value () const
	Default value of this control.
void	set (int value) const
	Set the value of the control.
void	set_100 (int value) const
	Change control.
int	get () const
	Get the value of the control.
int	get_100 () const
	Get the value of the control.
virtual vcl_string	description () const
	A 1-line brief description.
virtual void	reset () const
	Reset control.
v4l2_ctrl_type	type () const
	Type of control.
vcl_string	name () const
	Name of control.
int	id () const
	Id of control.
bool	read_only () const
	Control is read only.
bool	affect_other_controls () const
	Control can change value of other controls.
Static Public Member Functions
static vidl_v4l2_control *	new_control (const v4l2_queryctrl &ctr, int f)
	Factory method to create new controls.
Protected Member Functions
void	set_value (int v) const
int	get_value () const
Protected Attributes
int	fd
struct v4l2_queryctrl	ctrl_

---

Detailed Description

A class for handle a control of type integer.

Definition at line 74 of file vidl_v4l2_control.h.

---

Constructor & Destructor Documentation

vidl_v4l2_control_integer::vidl_v4l2_control_integer	(	const v4l2_queryctrl &	ctr,
		int	f
	)		[inline]

Definition at line 77 of file vidl_v4l2_control.h.

---

Member Function Documentation

bool vidl_v4l2_control::affect_other_controls

(

)

const [inline, inherited]

Control can change value of other controls.

Definition at line 60 of file vidl_v4l2_control.h.

int vidl_v4l2_control_integer::default_value

(

)

const [inline]

Default value of this control.

Definition at line 86 of file vidl_v4l2_control.h.

vcl_string vidl_v4l2_control_integer::description

(

)

const [virtual]

A 1-line brief description.

Implements vidl_v4l2_control.

Definition at line 91 of file vidl_v4l2_control.cxx.

int vidl_v4l2_control_integer::get

(

)

const [inline]

Get the value of the control.

Returns:

value in range determined by driver

Definition at line 95 of file vidl_v4l2_control.h.

int vidl_v4l2_control_integer::get_100

(

)

const [inline]

Get the value of the control.

Returns:

value in range 0-100

Definition at line 98 of file vidl_v4l2_control.h.

int vidl_v4l2_control::get_value

(

)

const [protected, inherited]

Definition at line 64 of file vidl_v4l2_control.cxx.

int vidl_v4l2_control::id

(

)

const [inline, inherited]

Id of control.

Returns:

ID (for example, V4L2_CID_BRIGHTNESS corresponds to brightness)

Definition at line 49 of file vidl_v4l2_control.h.

int vidl_v4l2_control_integer::maximum

(

)

const [inline]

Maximum value of the control.

Definition at line 81 of file vidl_v4l2_control.h.

int vidl_v4l2_control_integer::minimum

(

)

const [inline]

Minimum value of the control.

Definition at line 79 of file vidl_v4l2_control.h.

vcl_string vidl_v4l2_control::name

(

)

const [inline, inherited]

Name of control.

Returns:

name the driver assign to the control

Definition at line 44 of file vidl_v4l2_control.h.

vidl_v4l2_control * vidl_v4l2_control::new_control	(	const v4l2_queryctrl &	ctr,
		int	f
	)		[static, inherited]

Factory method to create new controls.

Parameters:

ctr	details from VIDIOC_QUERYCTRL
f	associated file descriptor

Returns:

pointer to base class of new control

Definition at line 20 of file vidl_v4l2_control.cxx.

bool vidl_v4l2_control::read_only

(

)

const [inline, inherited]

Control is read only.

Definition at line 51 of file vidl_v4l2_control.h.

virtual void vidl_v4l2_control_integer::reset

(

)

const [inline, virtual]

Reset control.

Reimplemented from vidl_v4l2_control.

Definition at line 102 of file vidl_v4l2_control.h.

void vidl_v4l2_control_integer::set

(

int

value

)

const

Set the value of the control.

Parameters:

value

to be set in range determined by driver

Definition at line 75 of file vidl_v4l2_control.cxx.

void vidl_v4l2_control_integer::set_100

(

int

value

)

const

Change control.

Parameters:

value

to be set in range 0-100

Definition at line 83 of file vidl_v4l2_control.cxx.

void vidl_v4l2_control::set_value

(

int

v

)

const [protected, inherited]

Definition at line 55 of file vidl_v4l2_control.cxx.

int vidl_v4l2_control_integer::step

(

)

const [inline]

Step size.

Indicates the increment between values which are actually different on the hardware

Definition at line 84 of file vidl_v4l2_control.h.

v4l2_ctrl_type vidl_v4l2_control::type

(

)

const [inline, inherited]

Type of control.

Returns:

type as indicated in v4l2 specification

Definition at line 41 of file vidl_v4l2_control.h.

---

Member Data Documentation

struct v4l2_queryctrl vidl_v4l2_control::ctrl_ [protected, inherited]

Definition at line 28 of file vidl_v4l2_control.h.

int vidl_v4l2_control::fd [protected, inherited]

Definition at line 27 of file vidl_v4l2_control.h.

---

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

• core/vidl/vidl_v4l2_control.h
• core/vidl/vidl_v4l2_control.cxx