carma::antenna::common::FrameGrabber Class Reference

Encapsulate hardware access to framegrabber device. More...

#include <carma/antenna/common/FrameGrabber.h>

Public Types
enum	ResolutionType { HI_RES, MID_RES, LO_RES, RES_COUNT }
	Supported resolution types. More...

Public Member Functions
void	createCaptureBuffer ()
	FrameGrabber (const std::string &fgdev, int fginput, bool emulate, carma::services::Table *table=0)
	Constructor. More...
	FrameGrabber (carma::services::Table *table)
	FrameGrabber (const FrameGrabber &)
::std::pair< short, short >	getResolution () const
static::std::pair< short, short >	getResolution (ResolutionType res)
Image	grabFrame (int numFrames=1, std::vector< float > *data=0)
	Grab a frame. More...
void	initializeCaptureBuffer ()
FrameGrabber &	operator= (const FrameGrabber &)
void	setBrightness (short b)
	Set brightness. More...
void	setContrast (short c)
	Set contrast. More...
void	setDebug (carma::services::Table *table)
void	setPixelDepth (short depth)
	Set pixel depth. More...
void	setResolution (ResolutionType resolution)
	Set resolution. More...
void	setTestImage (const Image &image)
	Set test image when emulating. More...
void	unmapCaptureBuffer ()
	~FrameGrabber ()
	Destructor. More...

Public Attributes
unsigned	bufLen_
unsigned	bufOffset_
bool	emulate_
void *	imageBuffer_
carma::util::PthreadMutex	mutex_
::std::auto_ptr < FrameGrabberPimpl >	pimpl_
::std::pair< short, short >	resolution_
carma::services::Table *	table_
Image	testImage_

Detailed Description

Encapsulate hardware access to framegrabber device.

This class is purely for controlling and accessing the frame grabber device. No extra image processing (e.g. rotation, cropping, etc) is done within this class.

Definition at line 32 of file FrameGrabber.h.

Member Enumeration Documentation

enum carma::antenna::common::FrameGrabber::ResolutionType

Supported resolution types.

Enumerator
HI_RES	768x480
MID_RES	640x400
LO_RES	320x200
RES_COUNT	Number of supported resolutions.

Definition at line 76 of file FrameGrabber.h.

Constructor & Destructor Documentation

carma::antenna::common::FrameGrabber::FrameGrabber	(	const std::string &	fgdev,
		int	fginput,
		bool	emulate,
		carma::services::Table *	table = 0
	)

Constructor.

Parameters

fgdev	Framegrabber device (e.g. /dev/video0)
fginput	Framegrabber input from which to grab frames.
emulate	Emulate using test image.

See Also

FrameGrabber::setTestImage

carma::antenna::common::FrameGrabber::~FrameGrabber

(

)

Destructor.

Member Function Documentation

Image carma::antenna::common::FrameGrabber::grabFrame	(	int	numFrames = 1,
		std::vector< float > *	data = 0
	)

Grab a frame.

Number of frames to integrate.

void carma::antenna::common::FrameGrabber::setBrightness

(

short

b

)

Set brightness.

Parameters

b	Unnormalized brightness value from [0,65535].

void carma::antenna::common::FrameGrabber::setContrast

(

short

c

)

Set contrast.

Parameters

c	Unnormalized contrast value [0,65535].

void carma::antenna::common::FrameGrabber::setPixelDepth

(

short

depth

)

Set pixel depth.

Parameters

depth

Pixel depth in bits.

void carma::antenna::common::FrameGrabber::setResolution

(

ResolutionType

resolution

)

Set resolution.

Parameters

resolution

Resolution.

See Also

ResolutionType

void carma::antenna::common::FrameGrabber::setTestImage

(

const Image &

image

)

Set test image when emulating.

If image size does not match the current resolution, it will be internally resized.

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

• carma/antenna/common/FrameGrabber.h