itk::VideoSource< TOutputVideoStream > Class Template Reference

#include <itkVideoSource.h>

Inheritance diagram for itk::VideoSource< TOutputVideoStream >:

Collaboration diagram for itk::VideoSource< TOutputVideoStream >:

Detailed Description

template<class TOutputVideoStream>
class itk::VideoSource< TOutputVideoStream >

A TemporalProcessObject that produces a VideoStream.

VideoSource acts as the base class for all TemporalProcess objects that produce a VideoStream as their output. This class defines GetOutput() which returns a pointer to the VideoStream object on output port 0.

The other roll that VideoSource plays is to implement the framework for spatial streaming to complement the temporal streaming implemented in TemporalProcessObject. This implementation mirrors the implementation in ImageSource except that each thread will be able to operate on a spatial region of each frame in the current temporal region that is being processed.

Definition at line 43 of file itkVideoSource.h.

Classes
struct	ThreadStruct

Public Types
typedef SmartPointer< const Self >	ConstPointer
typedef WeakPointer< const Self >	ConstWeakPointer
typedef ProcessObject::DataObjectPointerArraySizeType	DataObjectPointerArraySizeType
typedef OutputVideoStreamType::DirectionType	OutputFrameDirectionType
typedef OutputVideoStreamType::IndexType	OutputFrameIndexType
typedef OutputVideoStreamType::PixelType	OutputFramePixelType
typedef OutputVideoStreamType::PointType	OutputFramePointType
typedef OutputVideoStreamType::SizeType	OutputFrameSizeType
typedef OutputVideoStreamType::SpacingType	OutputFrameSpacingType
typedef OutputVideoStreamType::SpatialRegionType	OutputFrameSpatialRegionType
typedef OutputVideoStreamType::FrameType	OutputFrameType
typedef TOutputVideoStream	OutputVideoStreamType
typedef SmartPointer< Self >	Pointer
typedef VideoSource	Self
typedef TemporalProcessObject	Superclass
Public Types inherited from itk::TemporalProcessObject
typedef SmartPointer< const Self >	ConstPointer
typedef SmartPointer< Self >	Pointer
typedef TemporalProcessObject	Self
typedef ProcessObject	Superclass
Public Types inherited from itk::ProcessObject
typedef SmartPointer< const Self >	ConstPointer
typedef DataObject::DataObjectIdentifierType	DataObjectIdentifierType
typedef DataObject::Pointer	DataObjectPointer
typedef std::vector < DataObjectPointer >	DataObjectPointerArray
typedef DataObjectPointerArray::size_type	DataObjectPointerArraySizeType
typedef std::vector < DataObjectIdentifierType >	NameArray
typedef SmartPointer< Self >	Pointer
typedef ProcessObject	Self
typedef Object	Superclass
Public Types inherited from itk::Object
typedef SmartPointer< const Self >	ConstPointer
typedef SmartPointer< Self >	Pointer
typedef Object	Self
typedef LightObject	Superclass
Public Types inherited from itk::LightObject
typedef SmartPointer< const Self >	ConstPointer
typedef SmartPointer< Self >	Pointer
typedef LightObject	Self

Public Member Functions
virtual ::itk::LightObject::Pointer	CreateAnother (void) const
virtual const char *	GetNameOfClass () const
OutputVideoStreamType *	GetOutput ()
OutputVideoStreamType *	GetOutput (unsigned int idx)
virtual void	GraftNthOutput (unsigned int idx, OutputVideoStreamType *output)
virtual void	GraftOutput (OutputVideoStreamType *output)
virtual DataObjectPointer	MakeOutput (DataObjectPointerArraySizeType idx)
Public Member Functions inherited from itk::TemporalProcessObject
virtual void	EnlargeOutputRequestedRegion (DataObject *output)
virtual void	GenerateData ()
virtual void	GenerateInputRequestedRegion ()
virtual void	GenerateOutputRequestedRegion (DataObject *output)
virtual SizeValueType	GetUnitInputNumberOfFrames ()
virtual SizeValueType	GetUnitOutputNumberOfFrames ()
virtual void	UpdateOutputData (DataObject *output)
virtual void	UpdateOutputInformation ()
Public Member Functions inherited from itk::ProcessObject
virtual void	AbortGenerateDataOff ()
virtual void	AbortGenerateDataOn ()
virtual const bool &	GetAbortGenerateData ()
NameArray	GetInputNames () const
MultiThreader *	GetMultiThreader () const
DataObjectPointerArraySizeType	GetNumberOfIndexedInputs () const
DataObjectPointerArraySizeType	GetNumberOfInputs () const
DataObjectPointerArraySizeType	GetNumberOfOutputs () const
virtual DataObjectPointerArraySizeType	GetNumberOfValidRequiredInputs () const
NameArray	GetOutputNames () const
virtual const float &	GetProgress ()
NameArray	GetRequiredInputNames () const
bool	HasInput (const DataObjectIdentifierType &key) const
bool	HasOutput (const DataObjectIdentifierType &key) const
virtual DataObjectPointer	MakeOutput (const DataObjectIdentifierType &)
virtual void	PrepareOutputs ()
virtual void	PropagateRequestedRegion (DataObject *output)
virtual void	ResetPipeline ()
virtual void	SetAbortGenerateData (bool _arg)
virtual void	SetProgress (float _arg)
virtual void	Update ()
virtual void	UpdateLargestPossibleRegion ()
void	UpdateProgress (float amount)
DataObjectPointerArray	GetInputs ()
DataObjectPointerArray	GetOutputs ()
DataObjectPointerArray	GetIndexedInputs ()
DataObjectPointerArray	GetIndexedOutputs ()
DataObjectPointerArraySizeType	GetNumberOfIndexedOutputs () const
virtual void	SetReleaseDataFlag (bool flag)
virtual bool	GetReleaseDataFlag () const
void	ReleaseDataFlagOn ()
void	ReleaseDataFlagOff ()
virtual void	SetReleaseDataBeforeUpdateFlag (bool _arg)
virtual const bool &	GetReleaseDataBeforeUpdateFlag ()
virtual void	ReleaseDataBeforeUpdateFlagOn ()
virtual void	ReleaseDataBeforeUpdateFlagOff ()
virtual void	SetNumberOfThreads (ThreadIdType _arg)
virtual const ThreadIdType &	GetNumberOfThreads ()
Public Member Functions inherited from itk::Object
unsigned long	AddObserver (const EventObject &event, Command *)
unsigned long	AddObserver (const EventObject &event, Command *) const
virtual void	DebugOff () const
virtual void	DebugOn () const
Command *	GetCommand (unsigned long tag)
bool	GetDebug () const
MetaDataDictionary &	GetMetaDataDictionary (void)
const MetaDataDictionary &	GetMetaDataDictionary (void) const
virtual ModifiedTimeType	GetMTime () const
virtual const TimeStamp &	GetTimeStamp () const
bool	HasObserver (const EventObject &event) const
void	InvokeEvent (const EventObject &)
void	InvokeEvent (const EventObject &) const
virtual void	Modified () const
virtual void	Register () const
void	RemoveAllObservers ()
void	RemoveObserver (unsigned long tag)
void	SetDebug (bool debugFlag) const
void	SetMetaDataDictionary (const MetaDataDictionary &rhs)
virtual void	SetReferenceCount (int)
virtual void	UnRegister () const
Public Member Functions inherited from itk::LightObject
virtual void	Delete ()
virtual int	GetReferenceCount () const
	itkCloneMacro (Self)
void	Print (std::ostream &os, Indent indent=0) const

Static Public Member Functions
static Pointer	New ()

Protected Member Functions
virtual void	AfterThreadedGenerateData ()
virtual void	AllocateOutputs ()
virtual void	BeforeThreadedGenerateData ()
virtual void	GenerateOutputRequestedTemporalRegion (TemporalDataObject *output)
virtual void	PrintSelf (std::ostream &os, Indent indent) const
virtual int	SplitRequestedSpatialRegion (int i, int num, OutputFrameSpatialRegionType &splitRegion)
virtual void	TemporalStreamingGenerateData ()
virtual void	ThreadedGenerateData (const OutputFrameSpatialRegionType &outputRegionForThread, int threadId)
	VideoSource ()
virtual	~VideoSource ()
Protected Member Functions inherited from itk::TemporalProcessObject
virtual void	AfterTemporalStreamingGenerateData ()
virtual void	BeforeTemporalStreamingGenerateData ()
virtual void	EnlargeOutputRequestedTemporalRegion (TemporalDataObject *output)
virtual TemporalRegion	GenerateDefaultLargestPossibleTemporalRegion ()
virtual void	GenerateInputRequestedTemporalRegion ()
virtual SizeValueType	GetInputStencilCurrentFrameIndex ()
virtual void	SetFrameSkipPerOutput (OffsetValueType _arg)
virtual void	SetInputStencilCurrentFrameIndex (SizeValueType _arg)
virtual void	SetUnitInputNumberOfFrames (SizeValueType _arg)
virtual void	SetUnitOutputNumberOfFrames (SizeValueType _arg)
virtual std::vector < TemporalRegion >	SplitRequestedTemporalRegion ()
	TemporalProcessObject ()
virtual	~TemporalProcessObject ()
Protected Member Functions inherited from itk::ProcessObject
virtual void	AddInput (DataObject *input)
virtual void	AddOutput (DataObject *output)
virtual void	CacheInputReleaseDataFlags ()
virtual void	GenerateOutputInformation ()
virtual const DataObjectPointerArraySizeType &	GetNumberOfRequiredOutputs ()
bool	IsIndexedInputName (const DataObjectIdentifierType &) const
bool	IsIndexedOutputName (const DataObjectIdentifierType &) const
	itkLegacyMacro (virtual void RemoveOutput(DataObject *output))
	itkLegacyMacro (void SetNumberOfOutputs(DataObjectPointerArraySizeType num))
	itkLegacyMacro (virtual void RemoveInput(DataObject *input))
	itkLegacyMacro (void SetNumberOfInputs(DataObjectPointerArraySizeType num))
DataObjectPointerArraySizeType	MakeIndexFromInputName (const DataObjectIdentifierType &name) const
DataObjectPointerArraySizeType	MakeIndexFromOutputName (const DataObjectIdentifierType &name) const
DataObjectIdentifierType	MakeNameFromInputIndex (DataObjectPointerArraySizeType idx) const
DataObjectIdentifierType	MakeNameFromOutputIndex (DataObjectPointerArraySizeType idx) const
	ProcessObject ()
virtual void	PropagateResetPipeline ()
virtual void	ReleaseInputs ()
virtual void	RemoveInput (const DataObjectIdentifierType &key)
virtual void	RemoveInput (DataObjectPointerArraySizeType)
virtual void	RemoveOutput (const DataObjectIdentifierType &key)
virtual void	RemoveOutput (DataObjectPointerArraySizeType idx)
virtual void	RestoreInputReleaseDataFlags ()
virtual void	SetInput (const DataObjectIdentifierType &key, DataObject *input)
virtual void	SetNthInput (DataObjectPointerArraySizeType num, DataObject *input)
virtual void	SetNthOutput (DataObjectPointerArraySizeType num, DataObject *output)
void	SetNumberOfIndexedInputs (DataObjectPointerArraySizeType num)
void	SetNumberOfIndexedOutputs (DataObjectPointerArraySizeType num)
virtual void	SetNumberOfRequiredOutputs (DataObjectPointerArraySizeType _arg)
virtual void	SetOutput (const DataObjectIdentifierType &key, DataObject *output)
virtual void	SetPrimaryInput (DataObject *input)
virtual void	SetPrimaryOutput (DataObject *output)
virtual void	VerifyInputInformation ()
virtual void	VerifyPreconditions ()
	~ProcessObject ()
DataObject *	GetInput (const DataObjectIdentifierType &key)
const DataObject *	GetInput (const DataObjectIdentifierType &key) const
DataObject *	GetInput (DataObjectPointerArraySizeType idx)
const DataObject *	GetInput (DataObjectPointerArraySizeType idx) const
virtual void	PushBackInput (const DataObject *input)
virtual void	PopBackInput ()
virtual void	PushFrontInput (const DataObject *input)
virtual void	PopFrontInput ()
DataObject *	GetPrimaryInput ()
const DataObject *	GetPrimaryInput () const
virtual void	SetPrimaryInputName (const DataObjectIdentifierType &key)
virtual const char *	GetPrimaryInputName (void) const
virtual void	SetNumberOfRequiredInputs (DataObjectPointerArraySizeType)
virtual const DataObjectPointerArraySizeType &	GetNumberOfRequiredInputs ()
bool	AddRequiredInputName (const DataObjectIdentifierType &)
bool	AddRequiredInputName (const DataObjectIdentifierType &, DataObjectPointerArraySizeType idx)
bool	RemoveRequiredInputName (const DataObjectIdentifierType &)
bool	IsRequiredInputName (const DataObjectIdentifierType &) const
void	SetRequiredInputNames (const NameArray &)
DataObject *	GetOutput (const DataObjectIdentifierType &key)
const DataObject *	GetOutput (const DataObjectIdentifierType &key) const
virtual void	SetPrimaryOutputName (const DataObjectIdentifierType &key)
virtual const char *	GetPrimaryOutputName (void) const
DataObject *	GetOutput (DataObjectPointerArraySizeType idx)
const DataObject *	GetOutput (DataObjectPointerArraySizeType idx) const
DataObject *	GetPrimaryOutput ()
const DataObject *	GetPrimaryOutput () const
Protected Member Functions inherited from itk::Object
	Object ()
bool	PrintObservers (std::ostream &os, Indent indent) const
virtual void	SetTimeStamp (const TimeStamp &time)
virtual	~Object ()
Protected Member Functions inherited from itk::LightObject
virtual LightObject::Pointer	InternalClone () const
	LightObject ()
virtual void	PrintHeader (std::ostream &os, Indent indent) const
virtual void	PrintTrailer (std::ostream &os, Indent indent) const
virtual	~LightObject ()

Static Protected Member Functions
static ITK_THREAD_RETURN_TYPE	ThreaderCallback (void *arg)

Private Member Functions
void	operator= (const Self &)
	VideoSource (const Self &)
static const unsigned int	OutputFrameDimension = OutputFrameType::ImageDimension
static unsigned int	GetOutputFrameDimension ()

Additional Inherited Members
Protected Types inherited from itk::LightObject
typedef int	InternalReferenceCountType
Protected Attributes inherited from itk::TemporalProcessObject
OffsetValueType	m_FrameSkipPerOutput
SizeValueType	m_InputStencilCurrentFrameIndex
SizeValueType	m_UnitInputNumberOfFrames
SizeValueType	m_UnitOutputNumberOfFrames

Member Typedef Documentation

template<class TOutputVideoStream>

typedef SmartPointer< const Self > itk::VideoSource< TOutputVideoStream >::ConstPointer

Definition at line 53 of file itkVideoSource.h.

template<class TOutputVideoStream>

typedef WeakPointer< const Self > itk::VideoSource< TOutputVideoStream >::ConstWeakPointer

Definition at line 54 of file itkVideoSource.h.

template<class TOutputVideoStream>

typedef ProcessObject::DataObjectPointerArraySizeType itk::VideoSource< TOutputVideoStream >::DataObjectPointerArraySizeType

Make a DataObject of the correct type for the specified output port. The default always creates an OutputVideoStreamType object, so subclasses with multiple types of output must override this to return the proper type.

Definition at line 101 of file itkVideoSource.h.

template<class TOutputVideoStream>

typedef OutputVideoStreamType::DirectionType itk::VideoSource< TOutputVideoStream >::OutputFrameDirectionType

Definition at line 64 of file itkVideoSource.h.

template<class TOutputVideoStream>

typedef OutputVideoStreamType::IndexType itk::VideoSource< TOutputVideoStream >::OutputFrameIndexType

Definition at line 59 of file itkVideoSource.h.

template<class TOutputVideoStream>

typedef OutputVideoStreamType::PixelType itk::VideoSource< TOutputVideoStream >::OutputFramePixelType

Definition at line 60 of file itkVideoSource.h.

template<class TOutputVideoStream>

typedef OutputVideoStreamType::PointType itk::VideoSource< TOutputVideoStream >::OutputFramePointType

Definition at line 61 of file itkVideoSource.h.

template<class TOutputVideoStream>

typedef OutputVideoStreamType::SizeType itk::VideoSource< TOutputVideoStream >::OutputFrameSizeType

Definition at line 63 of file itkVideoSource.h.

template<class TOutputVideoStream>

typedef OutputVideoStreamType::SpacingType itk::VideoSource< TOutputVideoStream >::OutputFrameSpacingType

Definition at line 62 of file itkVideoSource.h.

template<class TOutputVideoStream>

typedef OutputVideoStreamType::SpatialRegionType itk::VideoSource< TOutputVideoStream >::OutputFrameSpatialRegionType

Definition at line 58 of file itkVideoSource.h.

template<class TOutputVideoStream>

typedef OutputVideoStreamType::FrameType itk::VideoSource< TOutputVideoStream >::OutputFrameType

Definition at line 57 of file itkVideoSource.h.

template<class TOutputVideoStream>

typedef TOutputVideoStream itk::VideoSource< TOutputVideoStream >::OutputVideoStreamType

Definition at line 55 of file itkVideoSource.h.

template<class TOutputVideoStream>

typedef SmartPointer< Self > itk::VideoSource< TOutputVideoStream >::Pointer

Definition at line 52 of file itkVideoSource.h.

template<class TOutputVideoStream>

typedef VideoSource itk::VideoSource< TOutputVideoStream >::Self

Standard class typedefs

Definition at line 50 of file itkVideoSource.h.

template<class TOutputVideoStream>

typedef TemporalProcessObject itk::VideoSource< TOutputVideoStream >::Superclass

Definition at line 51 of file itkVideoSource.h.

Constructor & Destructor Documentation

template<class TOutputVideoStream>

itk::VideoSource< TOutputVideoStream >::VideoSource ( )

protected

template<class TOutputVideoStream>

virtual itk::VideoSource< TOutputVideoStream >::~VideoSource ( )

protectedvirtual

template<class TOutputVideoStream>

itk::VideoSource< TOutputVideoStream >::VideoSource ( const Self &  )

private

Member Function Documentation

template<class TOutputVideoStream>

virtual void itk::VideoSource< TOutputVideoStream >::AfterThreadedGenerateData ( void  )

inlineprotectedvirtual

Method that gets called after all threads finish in TemporalStreamingGenerateData

Definition at line 156 of file itkVideoSource.h.

template<class TOutputVideoStream>

virtual void itk::VideoSource< TOutputVideoStream >::AllocateOutputs ( )

protectedvirtual

The GenerateData method normally allocates the buffers for all of the outputs of a filter. Some filters may want to override this default behavior. For example, a filter may have multiple outputs with varying resolution. Or a filter may want to process data in place by grafting its input to its output.

template<class TOutputVideoStream>

virtual void itk::VideoSource< TOutputVideoStream >::BeforeThreadedGenerateData ( void  )

inlineprotectedvirtual

Method that gets called before threads are dispatched from TemporalStreamingGeneratData

Definition at line 151 of file itkVideoSource.h.

template<class TOutputVideoStream>

virtual::itk::LightObject::Pointer itk::VideoSource< TOutputVideoStream >::CreateAnother ( void  ) const

virtual

Create an object from an instance, potentially deferring to a factory. This method allows you to create an instance of an object that is exactly the same type as the referring object. This is useful in cases where an object has been cast back to a base class.

Reimplemented from itk::Object.

Reimplemented in itk::VideoToVideoFilter< TInputVideoStream, TOutputVideoStream >, itk::VideoToVideoFilter< itk::VideoStream< TImageToImageFilter::InputImageType >, itk::VideoStream< TImageToImageFilter::OutputImageType > >, itk::VideoToVideoFilter< TVideoStream, TVideoStream >, itk::VideoFileReader< TOutputVideoStream >, itk::FrameDifferenceVideoFilter< TInputVideoStream, TOutputVideoStream >, and itk::FrameAverageVideoFilter< TInputVideoStream, TOutputVideoStream >.

template<class TOutputVideoStream>

virtual void itk::VideoSource< TOutputVideoStream >::GenerateOutputRequestedTemporalRegion ( TemporalDataObject *  output )

protectedvirtual

Override GenerateOutputRequestedTemporalRegion to make sure that if the requested temporal region is not set, it gets set to the largest possible temporal region (using TemporalProcessObject's implementation) and the output has enough frame buffer slots to hold the entire request. We don't want the number of buffers to be changed for mid-pipeline filters since they will usually operate on fewer frames than requested at any given time. The solution is to only change the number of buffers if the requested temporal region was unset at the beginning of the call since mid-pipeline filters will always have their outputs' requested spatial regions set by the GenerateInputRequestedRegion call from the filter one further down the pipeline.

Reimplemented from itk::TemporalProcessObject.

template<class TOutputVideoStream>

virtual const char* itk::VideoSource< TOutputVideoStream >::GetNameOfClass ( ) const

virtual

Run-time type information (and related methods).

Reimplemented from itk::TemporalProcessObject.

Reimplemented in itk::VideoToVideoFilter< TInputVideoStream, TOutputVideoStream >, itk::VideoToVideoFilter< itk::VideoStream< TImageToImageFilter::InputImageType >, itk::VideoStream< TImageToImageFilter::OutputImageType > >, itk::VideoToVideoFilter< TVideoStream, TVideoStream >, itk::VideoFileReader< TOutputVideoStream >, itk::ImageFilterToVideoFilterWrapper< TImageToImageFilter >, itk::FrameDifferenceVideoFilter< TInputVideoStream, TOutputVideoStream >, itk::FrameAverageVideoFilter< TInputVideoStream, TOutputVideoStream >, and itk::DecimateFramesVideoFilter< TVideoStream >.

template<class TOutputVideoStream>

OutputVideoStreamType* itk::VideoSource< TOutputVideoStream >::GetOutput

(

)

GetOutput() returns a pointer to the VideoStream on output port 0. This is analogous to the GetOutput on ImageSource and will be used to pass VideoStream data between TemporalProcessObjects (typically video filters)

template<class TOutputVideoStream>

OutputVideoStreamType* itk::VideoSource< TOutputVideoStream >::GetOutput

(

unsigned int

idx

)

template<class TOutputVideoStream>

static unsigned int itk::VideoSource< TOutputVideoStream >::GetOutputFrameDimension ( )

inlinestatic

Access the spacial dimensionality of the frames

Definition at line 75 of file itkVideoSource.h.

template<class TOutputVideoStream>

virtual void itk::VideoSource< TOutputVideoStream >::GraftNthOutput ( unsigned int  idx, OutputVideoStreamType *  output  )

virtual

Graft the provided VideoStream onto the TemporalProcessObject's idx'th output using VideoStream's Graft implementation

template<class TOutputVideoStream>

virtual void itk::VideoSource< TOutputVideoStream >::GraftOutput ( OutputVideoStreamType *  output )

virtual

Graft the provided VideoStream onto the 0th output. This is useful for ImageSources that use a mini-pipeline internally. See comment in ImageSource for more information.

template<class TOutputVideoStream>

virtual DataObjectPointer itk::VideoSource< TOutputVideoStream >::MakeOutput ( DataObjectPointerArraySizeType  idx )

virtual

Make a DataObject of the correct type to used as the specified output. Every ProcessObject subclass must be able to create a DataObject that can be used as a specified output. This method is automatically called when DataObject::DisconnectPipeline() is called. DataObject::DisconnectPipeline, disconnects a data object from being an output of its current source. When the data object is disconnected, the ProcessObject needs to construct a replacement output data object so that the ProcessObject is in a valid state. So DataObject::DisconnectPipeline eventually calls ProcessObject::MakeOutput. Note that MakeOutput always returns a itkSmartPointer to a DataObject. ImageSource and MeshSource override this method to create the correct type of image and mesh respectively. If a filter has multiple outputs of different types, then that filter must provide an implementation of MakeOutput().

Reimplemented from itk::ProcessObject.

template<class TOutputVideoStream>

static Pointer itk::VideoSource< TOutputVideoStream >::New ( )

static

template<class TOutputVideoStream>

void itk::VideoSource< TOutputVideoStream >::operator= ( const Self &  )

private

template<class TOutputVideoStream>

virtual void itk::VideoSource< TOutputVideoStream >::PrintSelf ( std::ostream &  os, Indent  indent  ) const

protectedvirtual

ITK print mechanism

Reimplemented from itk::TemporalProcessObject.

Reimplemented in itk::VideoToVideoFilter< TInputVideoStream, TOutputVideoStream >, itk::VideoToVideoFilter< itk::VideoStream< TImageToImageFilter::InputImageType >, itk::VideoStream< TImageToImageFilter::OutputImageType > >, itk::VideoToVideoFilter< TVideoStream, TVideoStream >, itk::VideoFileReader< TOutputVideoStream >, itk::ImageFilterToVideoFilterWrapper< TImageToImageFilter >, itk::FrameDifferenceVideoFilter< TInputVideoStream, TOutputVideoStream >, itk::FrameAverageVideoFilter< TInputVideoStream, TOutputVideoStream >, and itk::DecimateFramesVideoFilter< TVideoStream >.

template<class TOutputVideoStream>

virtual int itk::VideoSource< TOutputVideoStream >::SplitRequestedSpatialRegion ( int  i, int  num, OutputFrameSpatialRegionType &  splitRegion  )

protectedvirtual

This method functions like SplitRequestedRegion in ImageSource and is used by the implementation of TemporalStreamingGenerateData to dispatch threads that call ThreadedGenerateData.

template<class TOutputVideoStream>

virtual void itk::VideoSource< TOutputVideoStream >::TemporalStreamingGenerateData ( )

protectedvirtual

We override the default implementation of TemporalStreamingGenerateData from TemporalProcessObject to provide functionality for spatial streaming. This implementation works exactly the same way as the implementation of GenerateData in ImageSource. The filter-specific implementation of ThreadedGenerateData will be responsible of accessing the correct frames.

Reimplemented from itk::TemporalProcessObject.

Reimplemented in itk::VideoFileReader< TOutputVideoStream >, and itk::ImageFilterToVideoFilterWrapper< TImageToImageFilter >.

template<class TOutputVideoStream>

virtual void itk::VideoSource< TOutputVideoStream >::ThreadedGenerateData ( const OutputFrameSpatialRegionType &  outputRegionForThread, int  threadId  )

protectedvirtual

ThreadedGenerateData here serves the same symnatic purpose as ThreadedGenerateData in ProcessObjects that handle Images. This is to say that ThreadedGenerateData is in charge of performing a single algorithmic operation on a portion of the requested region. The difference will come in the implementation of each filter. Subclass implementations must access the passed spatial region across the desired number of frames in the buffered TemporalRegion of the input.

WARNING: subclasses may need to handle the case where different frames have different spatial dimensions and thus some frames may not be accessible at the requested spatial region.

Reimplemented in itk::FrameDifferenceVideoFilter< TInputVideoStream, TOutputVideoStream >, and itk::FrameAverageVideoFilter< TInputVideoStream, TOutputVideoStream >.

template<class TOutputVideoStream>

static ITK_THREAD_RETURN_TYPE itk::VideoSource< TOutputVideoStream >::ThreaderCallback ( void *  arg )

staticprotected

Static thread callback function for the MultiThreader. This gives control to ThreadedGenerateData().

Member Data Documentation

template<class TOutputVideoStream>

const unsigned int itk::VideoSource< TOutputVideoStream >::OutputFrameDimension = OutputFrameType::ImageDimension

static

Access the spacial dimensionality of the frames

Definition at line 74 of file itkVideoSource.h.

---

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

• itkVideoSource.h