makVrv::DtImageTaskElement Class Reference

The DtImageTaskElement is an abstract base class for all image task elements. More...

Inheritance diagram for makVrv::DtImageTaskElement:

Public Member Functions
virtual	~DtImageTaskElement ()
	DTOR.
virtual void	setFromRecord (const makArchives::DtImageTaskRecord &config)
	Provide initial values from a DtImageTaskRecord.
virtual bool	configure ()
	Initialize the image task using values set by mutators and / or initFromRecord().
void	preFrame ()
	Thread of execution before each frame's processing.
void	processFrame (DtVideoFrameBuffer *frame)
	Process the image.
void	postFrame ()
	Thread of execution after each frame's processing.
virtual void	attach (DtImageTaskElement *next)
	Place another Image Task element after this one.

Protected Member Functions
	DtImageTaskElement (DtDe &de, DtProcessImageTask *owningTask)
	CTOR.
virtual void	handlePreFrame ()
	No-op in base class.
virtual void	handlePostFrame ()
	No-op in base class.
virtual void	handleProcessFrame (DtVideoFrameBuffer *frame)=0
	All image task elements must implement handleProcessFrame().

Protected Attributes
DtDe &	myDe
	DtDe.
DtProcessImageTask *	myOwningTask
DtImageTaskElement *	myNextElement
	Next task element to process.

Private Member Functions
	DtImageTaskElement ()
	Default CTOR (unimplemented)
	DtImageTaskElement (const DtImageTaskElement &rhs)
	Copy CTOR (unimplemented)
DtImageTaskElement &	operator= (const DtImageTaskElement &orig)
	Assignment operator (unimplemented)

Friends
class	DtImageTaskElementCreator
	Only a DtImageTaskElementCreator can construct a DtImageTaskElement.

Detailed Description

The DtImageTaskElement is an abstract base class for all image task elements.

It defines the common interface of all image tasks

Constructor & Destructor Documentation

virtual makVrv::DtImageTaskElement::~DtImageTaskElement ( )

virtual

DTOR.

makVrv::DtImageTaskElement::DtImageTaskElement ( DtDe &  de, DtProcessImageTask *  owningTask  )

protected

CTOR.

makVrv::DtImageTaskElement::DtImageTaskElement ( )

private

Default CTOR (unimplemented)

makVrv::DtImageTaskElement::DtImageTaskElement ( const DtImageTaskElement &  rhs )

private

Copy CTOR (unimplemented)

Member Function Documentation

virtual void makVrv::DtImageTaskElement::setFromRecord ( const makArchives::DtImageTaskRecord &  config )

virtual

Provide initial values from a DtImageTaskRecord.

This should be called before configure().

Reimplemented in makVrv::DtTransformFrameTaskElement, makVrv::DtSharedMemoryTaskElement, makVrv::DtGStreamerTaskElement, makVrv::DtTcpTaskElement, makVrv::DtCompressFrameTaskElement, and makVrv::DtWebSocketTaskElement.

virtual bool makVrv::DtImageTaskElement::configure ( )

virtual

Initialize the image task using values set by mutators and / or initFromRecord().

Reimplemented in makVrv::DtSharedMemoryTaskElement, makVrv::DtGStreamerTaskElement, makVrv::DtTcpTaskElement, and makVrv::DtWebSocketTaskElement.

void makVrv::DtImageTaskElement::preFrame

(

)

Thread of execution before each frame's processing.

preFrame() calls handlePreFrame(), and then calls preFrame() for the next element in the pipeline.

void makVrv::DtImageTaskElement::processFrame

(

DtVideoFrameBuffer *

frame

)

Process the image.

processFrame() call handleProcessFrame(), and the calls processFrame() for the next element in the pipeline.

void makVrv::DtImageTaskElement::postFrame

(

)

Thread of execution after each frame's processing.

postFrame() calls handlePostFrame(), and then call postFrame() for the next element in the pipeline.

virtual void makVrv::DtImageTaskElement::attach ( DtImageTaskElement *  next )

virtual

Place another Image Task element after this one.

virtual void makVrv::DtImageTaskElement::handlePreFrame ( )

protectedvirtual

No-op in base class.

Reimplemented in makVrv::DtTcpTaskElement, and makVrv::DtWebSocketTaskElement.

virtual void makVrv::DtImageTaskElement::handlePostFrame ( )

protectedvirtual

No-op in base class.

virtual void makVrv::DtImageTaskElement::handleProcessFrame ( DtVideoFrameBuffer *  frame )

protectedpure virtual

All image task elements must implement handleProcessFrame().

Implemented in makVrv::DtTransformFrameTaskElement, makVrv::DtSharedMemoryTaskElement, makVrv::DtGStreamerTaskElement, makVrv::DtTcpTaskElement, makVrv::DtCompressFrameTaskElement, and makVrv::DtWebSocketTaskElement.

DtImageTaskElement& makVrv::DtImageTaskElement::operator= ( const DtImageTaskElement &  orig )

private

Assignment operator (unimplemented)

Friends And Related Function Documentation

friend class DtImageTaskElementCreator

friend

Only a DtImageTaskElementCreator can construct a DtImageTaskElement.

Member Data Documentation

DtDe& makVrv::DtImageTaskElement::myDe

protected

DtDe.

DtProcessImageTask* makVrv::DtImageTaskElement::myOwningTask

protected

DtImageTaskElement* makVrv::DtImageTaskElement::myNextElement

protected

Next task element to process.

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

• /exports/nfedora7-1/nightly/docs/vrforcesDevelopment.tot/include/vrvVideoStream/DtImageTaskElement.h