Superclass of video input devices for VTK. More...

#include <vtkVideoSource.h>

Inheritance diagram for vtkVideoSource:

Collaboration diagram for vtkVideoSource:

Public Types
typedef vtkImageAlgorithm	Superclass

Public Types inherited from vtkImageAlgorithm
typedef vtkAlgorithm	Superclass

Public Types inherited from vtkAlgorithm
enum	DesiredOutputPrecision { SINGLE_PRECISION , DOUBLE_PRECISION , DEFAULT_PRECISION }
	Values used for setting the desired output precision for various algorithms. More...

typedef vtkObject	Superclass

Public Member Functions
virtual vtkTypeBool	IsA (const char *type)
	Return 1 if this class is the same type of (or a subclass of) the named class.

vtkVideoSource *	NewInstance () const

void	PrintSelf (ostream &os, vtkIndent indent) override
	Methods invoked by print to print information about the object including superclasses.

virtual void	Record ()
	Record incoming video at the specified FrameRate.

virtual void	Play ()
	Play through the 'tape' sequentially at the specified frame rate.

virtual void	Stop ()
	Stop recording or playing.

virtual void	Rewind ()
	Rewind to the frame with the earliest timestamp.

virtual void	FastForward ()
	FastForward to the last frame that was recorded (i.e.

virtual void	Seek (int n)
	Seek forwards or backwards by the specified number of frames (positive is forward, negative is backward).

virtual void	Grab ()
	Grab a single video frame.

virtual double	GetFrameTimeStamp (int frame)
	Get a time stamp in seconds (resolution of milliseconds) for a video frame.

double	GetFrameTimeStamp ()
	Get a time stamp in seconds (resolution of milliseconds) for the Output.

virtual void	ReleaseSystemResources ()
	Release the video driver.

virtual void	InternalGrab ()
	The internal function which actually does the grab.


virtual int	GetRecording ()
	Are we in record mode? (record mode and play mode are mutually exclusive).


virtual int	GetPlaying ()
	Are we in play mode? (record mode and play mode are mutually exclusive).


virtual void	SetFrameSize (int x, int y, int z)
	Set the full-frame size.

virtual void	SetFrameSize (int dim[3])
	Set the full-frame size.

virtual int *	GetFrameSize ()
	Set the full-frame size.

virtual void	GetFrameSize (int &, int &, int &)
	Set the full-frame size.

virtual void	GetFrameSize (int[3])
	Set the full-frame size.


virtual void	SetFrameRate (float rate)
	Request a particular frame rate (default 30 frames per second).

virtual float	GetFrameRate ()
	Request a particular frame rate (default 30 frames per second).


virtual void	SetOutputFormat (int format)
	Set the output format.

void	SetOutputFormatToLuminance ()
	Set the output format.

void	SetOutputFormatToRGB ()
	Set the output format.

void	SetOutputFormatToRGBA ()
	Set the output format.

virtual int	GetOutputFormat ()
	Set the output format.


virtual void	SetFrameBufferSize (int FrameBufferSize)
	Set size of the frame buffer, i.e.

virtual int	GetFrameBufferSize ()
	Set size of the frame buffer, i.e.


virtual void	SetNumberOfOutputFrames (int)
	Set the number of frames to copy to the output on each execute.

virtual int	GetNumberOfOutputFrames ()
	Set the number of frames to copy to the output on each execute.


virtual void	AutoAdvanceOn ()
	Set whether to automatically advance the buffer before each grab.

virtual void	AutoAdvanceOff ()
	Set whether to automatically advance the buffer before each grab.

virtual void	SetAutoAdvance (vtkTypeBool)
	Set whether to automatically advance the buffer before each grab.

virtual vtkTypeBool	GetAutoAdvance ()
	Set whether to automatically advance the buffer before each grab.


virtual void	SetClipRegion (int r[6])
	Set the clip rectangle for the frames.

virtual void	SetClipRegion (int x0, int x1, int y0, int y1, int z0, int z1)
	Set the clip rectangle for the frames.

virtual int *	GetClipRegion ()
	Set the clip rectangle for the frames.

virtual void	GetClipRegion (int &, int &, int &, int &, int &, int &)
	Set the clip rectangle for the frames.

virtual void	GetClipRegion (int[6])
	Set the clip rectangle for the frames.


virtual void	SetOutputWholeExtent (int, int, int, int, int, int)
	Get/Set the WholeExtent of the output.

virtual void	SetOutputWholeExtent (int[6])
	Get/Set the WholeExtent of the output.

virtual int *	GetOutputWholeExtent ()
	Get/Set the WholeExtent of the output.

virtual void	GetOutputWholeExtent (int &, int &, int &, int &, int &, int &)
	Get/Set the WholeExtent of the output.

virtual void	GetOutputWholeExtent (int[6])
	Get/Set the WholeExtent of the output.


virtual void	SetDataSpacing (double, double, double)
	Set/Get the pixel spacing.

virtual void	SetDataSpacing (double[3])
	Set/Get the pixel spacing.

virtual double *	GetDataSpacing ()
	Set/Get the pixel spacing.

virtual void	GetDataSpacing (double &, double &, double &)
	Set/Get the pixel spacing.

virtual void	GetDataSpacing (double[3])
	Set/Get the pixel spacing.


virtual void	SetDataOrigin (double, double, double)
	Set/Get the coordinates of the lower, left corner of the frame.

virtual void	SetDataOrigin (double[3])
	Set/Get the coordinates of the lower, left corner of the frame.

virtual double *	GetDataOrigin ()
	Set/Get the coordinates of the lower, left corner of the frame.

virtual void	GetDataOrigin (double &, double &, double &)
	Set/Get the coordinates of the lower, left corner of the frame.

virtual void	GetDataOrigin (double[3])
	Set/Get the coordinates of the lower, left corner of the frame.


virtual void	SetOpacity (float)
	For RGBA output only (4 scalar components), set the opacity.

virtual float	GetOpacity ()
	For RGBA output only (4 scalar components), set the opacity.


virtual int	GetFrameCount ()
	This value is incremented each time a frame is grabbed.

virtual void	SetFrameCount (int)
	This value is incremented each time a frame is grabbed.


virtual int	GetFrameIndex ()
	Get the frame index relative to the 'beginning of the tape'.


virtual void	Initialize ()
	Initialize the hardware.

virtual int	GetInitialized ()
	Initialize the hardware.


void	SetStartTimeStamp (double t)
	And internal variable which marks the beginning of a Record session.

double	GetStartTimeStamp ()
	And internal variable which marks the beginning of a Record session.

Public Member Functions inherited from vtkImageAlgorithm
virtual vtkTypeBool	IsA (const char *type)
	Return 1 if this class is the same type of (or a subclass of) the named class.

vtkImageAlgorithm *	NewInstance () const

void	PrintSelf (ostream &os, vtkIndent indent) override
	Methods invoked by print to print information about the object including superclasses.

vtkTypeBool	ProcessRequest (vtkInformation , vtkInformationVector , vtkInformationVector ) override
	Process a request from the executive.

vtkImageData *	GetOutput ()
	Get the output data object for a port on this algorithm.

vtkImageData *	GetOutput (int)
	Get the output data object for a port on this algorithm.

virtual void	SetOutput (vtkDataObject *d)
	Get the output data object for a port on this algorithm.

void	SetInputData (vtkDataObject *)
	Assign a data object as input.

void	SetInputData (int, vtkDataObject *)
	Assign a data object as input.

vtkDataObject *	GetInput (int port)
	Get a data object for one of the input port connections.

vtkDataObject *	GetInput ()
	Get a data object for one of the input port connections.

vtkImageData *	GetImageDataInput (int port)
	Get a data object for one of the input port connections.

virtual void	AddInputData (vtkDataObject *)
	Assign a data object as input.

virtual void	AddInputData (int, vtkDataObject *)
	Assign a data object as input.

Public Member Functions inherited from vtkAlgorithm
virtual vtkTypeBool	IsA (const char *type)
	Return 1 if this class is the same type of (or a subclass of) the named class.

vtkAlgorithm *	NewInstance () const

void	PrintSelf (ostream &os, vtkIndent indent) override
	Methods invoked by print to print information about the object including superclasses.

vtkTypeBool	HasExecutive ()
	Check whether this algorithm has an assigned executive.

vtkExecutive *	GetExecutive ()
	Get this algorithm's executive.

virtual void	SetExecutive (vtkExecutive *executive)
	Set this algorithm's executive.

virtual vtkTypeBool	ProcessRequest (vtkInformation request, vtkInformationVector inInfo, vtkInformationVector outInfo)
	Upstream/Downstream requests form the generalized interface through which executives invoke a algorithm's functionality.

vtkTypeBool	ProcessRequest (vtkInformation request, vtkCollection inInfo, vtkInformationVector *outInfo)
	Version of ProcessRequest() that is wrapped.

virtual int	ComputePipelineMTime (vtkInformation request, vtkInformationVector inInfoVec, vtkInformationVector outInfoVec, int requestFromOutputPort, vtkMTimeType *mtime)
	A special version of ProcessRequest meant specifically for the pipeline modified time request.

virtual int	ModifyRequest (vtkInformation *request, int when)
	This method gives the algorithm a chance to modify the contents of a request before or after (specified in the when argument) it is forwarded.

vtkInformation *	GetInputPortInformation (int port)
	Get the information object associated with an input port.

vtkInformation *	GetOutputPortInformation (int port)
	Get the information object associated with an output port.

int	GetNumberOfInputPorts ()
	Get the number of input ports used by the algorithm.

int	GetNumberOfOutputPorts ()
	Get the number of output ports provided by the algorithm.

void	SetAbortExecuteAndUpdateTime ()
	Set AbortExecute Flag and update LastAbortTime.

void	UpdateProgress (double amount)
	Update the progress of the process object.

bool	CheckAbort ()
	Checks to see if this filter should abort.

vtkInformation *	GetInputArrayInformation (int idx)
	Get the info object for the specified input array to this algorithm.

void	RemoveAllInputs ()
	Remove all the input data.

vtkDataObject *	GetOutputDataObject (int port)
	Get the data object that will contain the algorithm output for the given port.

vtkDataObject *	GetInputDataObject (int port, int connection)
	Get the data object that will contain the algorithm input for the given port and given connection.

virtual void	RemoveInputConnection (int port, vtkAlgorithmOutput *input)
	Remove a connection from the given input port index.

virtual void	RemoveInputConnection (int port, int idx)
	Remove a connection given by index idx.

virtual void	RemoveAllInputConnections (int port)
	Removes all input connections.

virtual void	SetInputDataObject (int port, vtkDataObject *data)
	Sets the data-object as an input on the given port index.

virtual void	SetInputDataObject (vtkDataObject *data)

virtual void	AddInputDataObject (int port, vtkDataObject *data)
	Add the data-object as an input to this given port.

virtual void	AddInputDataObject (vtkDataObject *data)

vtkAlgorithmOutput *	GetOutputPort (int index)
	Get a proxy object corresponding to the given output port of this algorithm.

vtkAlgorithmOutput *	GetOutputPort ()

int	GetNumberOfInputConnections (int port)
	Get the number of inputs currently connected to a port.

int	GetTotalNumberOfInputConnections ()
	Get the total number of inputs for this algorithm.

vtkAlgorithmOutput *	GetInputConnection (int port, int index)
	Get the algorithm output port connected to an input port.

vtkAlgorithm *	GetInputAlgorithm (int port, int index, int &algPort)
	Returns the algorithm and the output port index of that algorithm connected to a port-index pair.

vtkAlgorithm *	GetInputAlgorithm (int port, int index)
	Returns the algorithm connected to a port-index pair.

vtkAlgorithm *	GetInputAlgorithm ()
	Equivalent to GetInputAlgorithm(0, 0).

vtkExecutive *	GetInputExecutive (int port, int index)
	Returns the executive associated with a particular input connection.

vtkExecutive *	GetInputExecutive ()
	Equivalent to GetInputExecutive(0, 0)

vtkInformation *	GetInputInformation (int port, int index)
	Return the information object that is associated with a particular input connection.

vtkInformation *	GetInputInformation ()
	Equivalent to GetInputInformation(0, 0)

vtkInformation *	GetOutputInformation (int port)
	Return the information object that is associated with a particular output port.

virtual vtkTypeBool	Update (int port, vtkInformationVector *requests)
	This method enables the passing of data requests to the algorithm to be used during execution (in addition to bringing a particular port up-to-date).

virtual vtkTypeBool	Update (vtkInformation *requests)
	Convenience method to update an algorithm after passing requests to its first output port.

virtual int	UpdatePiece (int piece, int numPieces, int ghostLevels, const int extents[6]=nullptr)
	Convenience method to update an algorithm after passing requests to its first output port.

virtual VTK_UNBLOCKTHREADS int	UpdateExtent (const int extents[6])
	Convenience method to update an algorithm after passing requests to its first output port.

virtual VTK_UNBLOCKTHREADS int	UpdateTimeStep (double time, int piece=-1, int numPieces=1, int ghostLevels=0, const int extents[6]=nullptr)
	Convenience method to update an algorithm after passing requests to its first output port.

virtual VTK_UNBLOCKTHREADS void	UpdateInformation ()
	Bring the algorithm's information up-to-date.

virtual void	UpdateDataObject ()
	Create output object(s).

virtual void	PropagateUpdateExtent ()
	Propagate meta-data upstream.

virtual VTK_UNBLOCKTHREADS void	UpdateWholeExtent ()
	Bring this algorithm's outputs up-to-date.

void	ConvertTotalInputToPortConnection (int ind, int &port, int &conn)
	Convenience routine to convert from a linear ordering of input connections to a port/connection pair.

void	RemoveNoPriorTemporalAccessInformationKey ()
	Removes any information key `vtkStreamingDemandDrivenPipeline::NO_PRIOR_TEMPORAL_ACCESS()` to all output ports of this `vtkAlgorithm`.

virtual vtkInformation *	GetInformation ()
	Set/Get the information object associated with this algorithm.

virtual void	SetInformation (vtkInformation *)
	Set/Get the information object associated with this algorithm.

bool	UsesGarbageCollector () const override
	Participate in garbage collection.

virtual void	SetAbortExecute (vtkTypeBool)
	Set/Get the AbortExecute flag for the process object.

virtual vtkTypeBool	GetAbortExecute ()
	Set/Get the AbortExecute flag for the process object.

virtual void	AbortExecuteOn ()
	Set/Get the AbortExecute flag for the process object.

virtual void	AbortExecuteOff ()
	Set/Get the AbortExecute flag for the process object.

virtual double	GetProgress ()
	Get the execution progress of a process object.

void	SetContainerAlgorithm (vtkAlgorithm *containerAlg)
	Set/get a Container algorithm for this algorithm.

vtkAlgorithm *	GetContainerAlgorithm ()
	Set/get a Container algorithm for this algorithm.

virtual void	SetAbortOutput (bool)
	Set/Get an internal variable used to communicate between the algorithm and executive.

virtual bool	GetAbortOutput ()
	Set/Get an internal variable used to communicate between the algorithm and executive.

void	SetProgressShiftScale (double shift, double scale)
	Specify the shift and scale values to use to apply to the progress amount when `UpdateProgress` is called.

virtual double	GetProgressShift ()
	Specify the shift and scale values to use to apply to the progress amount when `UpdateProgress` is called.

virtual double	GetProgressScale ()
	Specify the shift and scale values to use to apply to the progress amount when `UpdateProgress` is called.

void	SetProgressText (const char *ptext)
	Set the current text message associated with the progress state.

virtual char *	GetProgressText ()
	Set the current text message associated with the progress state.

virtual unsigned long	GetErrorCode ()
	The error code contains a possible error that occurred while reading or writing the file.

void	SetInputArrayToProcess (const char *name, int fieldAssociation)
	Set the input data arrays that this algorithm will process.

virtual void	SetInputArrayToProcess (int idx, int port, int connection, int fieldAssociation, const char *name)
	Set the input data arrays that this algorithm will process.

virtual void	SetInputArrayToProcess (int idx, int port, int connection, int fieldAssociation, int fieldAttributeType)
	Set the input data arrays that this algorithm will process.

virtual void	SetInputArrayToProcess (int idx, vtkInformation *info)
	Set the input data arrays that this algorithm will process.

virtual void	SetInputArrayToProcess (int idx, int port, int connection, const char fieldAssociation, const char attributeTypeorName)
	Set the input data arrays that this algorithm will process.

virtual void	SetInputConnection (int port, vtkAlgorithmOutput *input)
	Set the connection for the given input port index.

virtual void	SetInputConnection (vtkAlgorithmOutput *input)
	Set the connection for the given input port index.

virtual void	AddInputConnection (int port, vtkAlgorithmOutput *input)
	Add a connection to the given input port index.

virtual void	AddInputConnection (vtkAlgorithmOutput *input)
	Add a connection to the given input port index.

virtual VTK_UNBLOCKTHREADS void	Update (int port)
	Bring this algorithm's outputs up-to-date.

virtual VTK_UNBLOCKTHREADS void	Update ()
	Bring this algorithm's outputs up-to-date.

virtual void	SetReleaseDataFlag (vtkTypeBool)
	Turn release data flag on or off for all output ports.

virtual vtkTypeBool	GetReleaseDataFlag ()
	Turn release data flag on or off for all output ports.

void	ReleaseDataFlagOn ()
	Turn release data flag on or off for all output ports.

void	ReleaseDataFlagOff ()
	Turn release data flag on or off for all output ports.

int	UpdateExtentIsEmpty (vtkInformation pinfo, vtkDataObject output)
	This detects when the UpdateExtent will generate no data This condition is satisfied when the UpdateExtent has zero volume (0,-1,...) or the UpdateNumberOfPieces is 0.

int	UpdateExtentIsEmpty (vtkInformation *pinfo, int extentType)
	This detects when the UpdateExtent will generate no data This condition is satisfied when the UpdateExtent has zero volume (0,-1,...) or the UpdateNumberOfPieces is 0.

int *	GetUpdateExtent ()
	These functions return the update extent for output ports that use 3D extents.

int *	GetUpdateExtent (int port)
	These functions return the update extent for output ports that use 3D extents.

void	GetUpdateExtent (int &x0, int &x1, int &y0, int &y1, int &z0, int &z1)
	These functions return the update extent for output ports that use 3D extents.

void	GetUpdateExtent (int port, int &x0, int &x1, int &y0, int &y1, int &z0, int &z1)
	These functions return the update extent for output ports that use 3D extents.

void	GetUpdateExtent (int extent[6])
	These functions return the update extent for output ports that use 3D extents.

void	GetUpdateExtent (int port, int extent[6])
	These functions return the update extent for output ports that use 3D extents.

int	GetUpdatePiece ()
	These functions return the update extent for output ports that use piece extents.

int	GetUpdatePiece (int port)
	These functions return the update extent for output ports that use piece extents.

int	GetUpdateNumberOfPieces ()
	These functions return the update extent for output ports that use piece extents.

int	GetUpdateNumberOfPieces (int port)
	These functions return the update extent for output ports that use piece extents.

int	GetUpdateGhostLevel ()
	These functions return the update extent for output ports that use piece extents.

int	GetUpdateGhostLevel (int port)
	These functions return the update extent for output ports that use piece extents.

void	SetProgressObserver (vtkProgressObserver *)
	If an ProgressObserver is set, the algorithm will report progress through it rather than directly.

virtual vtkProgressObserver *	GetProgressObserver ()
	If an ProgressObserver is set, the algorithm will report progress through it rather than directly.

void	SetNoPriorTemporalAccessInformationKey (int key)
	Set to all output ports of this algorithm the information key `vtkStreamingDemandDrivenPipeline::NO_PRIOR_TEMPORAL_ACCESS()`.

void	SetNoPriorTemporalAccessInformationKey ()
	Set to all output ports of this algorithm the information key `vtkStreamingDemandDrivenPipeline::NO_PRIOR_TEMPORAL_ACCESS()`.

Public Member Functions inherited from vtkObject
	vtkBaseTypeMacro (vtkObject, vtkObjectBase)

virtual void	DebugOn ()
	Turn debugging output on.

virtual void	DebugOff ()
	Turn debugging output off.

bool	GetDebug ()
	Get the value of the debug flag.

void	SetDebug (bool debugFlag)
	Set the value of the debug flag.

virtual void	Modified ()
	Update the modification time for this object.

virtual vtkMTimeType	GetMTime ()
	Return this object's modified time.

void	PrintSelf (ostream &os, vtkIndent indent) override
	Methods invoked by print to print information about the object including superclasses.

void	RemoveObserver (unsigned long tag)

void	RemoveObservers (unsigned long event)

void	RemoveObservers (const char *event)

void	RemoveAllObservers ()

vtkTypeBool	HasObserver (unsigned long event)

vtkTypeBool	HasObserver (const char *event)

vtkTypeBool	InvokeEvent (unsigned long event)

vtkTypeBool	InvokeEvent (const char *event)

std::string	GetObjectDescription () const override
	The object description printed in messages and PrintSelf output.

unsigned long	AddObserver (unsigned long event, vtkCommand *, float priority=0.0f)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.

unsigned long	AddObserver (const char event, vtkCommand , float priority=0.0f)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.

vtkCommand *	GetCommand (unsigned long tag)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.

void	RemoveObserver (vtkCommand *)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.

void	RemoveObservers (unsigned long event, vtkCommand *)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.

void	RemoveObservers (const char event, vtkCommand )
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.

vtkTypeBool	HasObserver (unsigned long event, vtkCommand *)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.

vtkTypeBool	HasObserver (const char event, vtkCommand )
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.

template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, void(T::*callback)(), float priority=0.0f)
	Overloads to AddObserver that allow developers to add class member functions as callbacks for events.

template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, void(T::callback)(vtkObject , unsigned long, void *), float priority=0.0f)
	Overloads to AddObserver that allow developers to add class member functions as callbacks for events.

template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, bool(T::callback)(vtkObject , unsigned long, void *), float priority=0.0f)
	Allow user to set the AbortFlagOn() with the return value of the callback method.

vtkTypeBool	InvokeEvent (unsigned long event, void *callData)
	This method invokes an event and return whether the event was aborted or not.

vtkTypeBool	InvokeEvent (const char event, void callData)
	This method invokes an event and return whether the event was aborted or not.

virtual void	SetObjectName (const std::string &objectName)
	Set/get the name of this object for reporting purposes.

virtual std::string	GetObjectName () const
	Set/get the name of this object for reporting purposes.

Public Member Functions inherited from vtkObjectBase
const char *	GetClassName () const
	Return the class name as a string.

virtual std::string	GetObjectDescription () const
	The object description printed in messages and PrintSelf output.

virtual vtkTypeBool	IsA (const char *name)
	Return 1 if this class is the same type of (or a subclass of) the named class.

virtual vtkIdType	GetNumberOfGenerationsFromBase (const char *name)
	Given the name of a base class of this class type, return the distance of inheritance between this class type and the named class (how many generations of inheritance are there between this class and the named class).

virtual void	Delete ()
	Delete a VTK object.

virtual void	FastDelete ()
	Delete a reference to this object.

void	InitializeObjectBase ()

void	Print (ostream &os)
	Print an object to an ostream.

void	Register (vtkObjectBase *o)
	Increase the reference count (mark as used by another object).

virtual void	UnRegister (vtkObjectBase *o)
	Decrease the reference count (release by another object).

int	GetReferenceCount ()
	Return the current reference count of this object.

void	SetReferenceCount (int)
	Sets the reference count.

bool	GetIsInMemkind () const
	A local state flag that remembers whether this object lives in the normal or extended memory space.

virtual void	PrintHeader (ostream &os, vtkIndent indent)
	Methods invoked by print to print information about the object including superclasses.

virtual void	PrintTrailer (ostream &os, vtkIndent indent)
	Methods invoked by print to print information about the object including superclasses.

Static Public Member Functions
static vtkVideoSource *	New ()

static vtkTypeBool	IsTypeOf (const char *type)

static vtkVideoSource *	SafeDownCast (vtkObjectBase *o)

Static Public Member Functions inherited from vtkImageAlgorithm
static vtkTypeBool	IsTypeOf (const char *type)

static vtkImageAlgorithm *	SafeDownCast (vtkObjectBase *o)

Static Public Member Functions inherited from vtkAlgorithm
static vtkAlgorithm *	New ()

static vtkTypeBool	IsTypeOf (const char *type)

static vtkAlgorithm *	SafeDownCast (vtkObjectBase *o)

static vtkInformationIntegerKey *	INPUT_IS_OPTIONAL ()
	Keys used to specify input port requirements.

static vtkInformationIntegerKey *	INPUT_IS_REPEATABLE ()

static vtkInformationInformationVectorKey *	INPUT_REQUIRED_FIELDS ()

static vtkInformationStringVectorKey *	INPUT_REQUIRED_DATA_TYPE ()

static vtkInformationInformationVectorKey *	INPUT_ARRAYS_TO_PROCESS ()

static vtkInformationIntegerKey *	INPUT_PORT ()

static vtkInformationIntegerKey *	INPUT_CONNECTION ()

static vtkInformationIntegerKey *	CAN_PRODUCE_SUB_EXTENT ()
	This key tells the executive that a particular output port is capable of producing an arbitrary subextent of the whole extent.

static vtkInformationIntegerKey *	CAN_HANDLE_PIECE_REQUEST ()
	Key that tells the pipeline that a particular algorithm can or cannot handle piece request.

static vtkInformationIntegerKey *	ABORTED ()

static void	SetDefaultExecutivePrototype (vtkExecutive *proto)
	If the DefaultExecutivePrototype is set, a copy of it is created in CreateDefaultExecutive() using NewInstance().

Static Public Member Functions inherited from vtkObject
static vtkObject *	New ()
	Create an object with Debug turned off, modified time initialized to zero, and reference counting on.

static void	BreakOnError ()
	This method is called when vtkErrorMacro executes.

static void	SetGlobalWarningDisplay (vtkTypeBool val)
	This is a global flag that controls whether any debug, warning or error messages are displayed.

static void	GlobalWarningDisplayOn ()
	This is a global flag that controls whether any debug, warning or error messages are displayed.

static void	GlobalWarningDisplayOff ()
	This is a global flag that controls whether any debug, warning or error messages are displayed.

static vtkTypeBool	GetGlobalWarningDisplay ()
	This is a global flag that controls whether any debug, warning or error messages are displayed.

Static Public Member Functions inherited from vtkObjectBase
static vtkTypeBool	IsTypeOf (const char *name)
	Return 1 if this class type is the same type of (or a subclass of) the named class.

static vtkIdType	GetNumberOfGenerationsFromBaseType (const char *name)
	Given a the name of a base class of this class type, return the distance of inheritance between this class type and the named class (how many generations of inheritance are there between this class and the named class).

static vtkObjectBase *	New ()
	Create an object with Debug turned off, modified time initialized to zero, and reference counting on.

static void	SetMemkindDirectory (const char *directoryname)
	The name of a directory, ideally mounted -o dax, to memory map an extended memory space within.

static bool	GetUsingMemkind ()
	A global state flag that controls whether vtkObjects are constructed in the usual way (the default) or within the extended memory space.

Protected Member Functions
virtual vtkObjectBase *	NewInstanceInternal () const

	vtkVideoSource ()

	~vtkVideoSource () override

int	RequestInformation (vtkInformation , vtkInformationVector , vtkInformationVector ) override
	Subclasses can reimplement this method to collect information from their inputs and set information for their outputs.


virtual void	UpdateFrameBuffer ()
	These methods can be overridden in subclasses.

virtual void	AdvanceFrameBuffer (int n)
	These methods can be overridden in subclasses.

int	RequestData (vtkInformation , vtkInformationVector , vtkInformationVector ) override
	These methods can be overridden in subclasses.

virtual void	UnpackRasterLine (char outPtr, char rowPtr, int start, int count)
	These methods can be overridden in subclasses.

Protected Member Functions inherited from vtkImageAlgorithm
virtual vtkObjectBase *	NewInstanceInternal () const

	vtkImageAlgorithm ()

	~vtkImageAlgorithm () override

virtual int	RequestInformation (vtkInformation request, vtkInformationVector inputVector, vtkInformationVector outputVector)
	Subclasses can reimplement this method to collect information from their inputs and set information for their outputs.

virtual int	RequestUpdateExtent (vtkInformation , vtkInformationVector , vtkInformationVector )
	Subclasses can reimplement this method to translate the update extent requests from each output port into update extent requests for the input connections.

virtual int	RequestUpdateTime (vtkInformation , vtkInformationVector , vtkInformationVector )

virtual void	CopyInputArrayAttributesToOutput (vtkInformation request, vtkInformationVector inputVector, vtkInformationVector outputVector)
	Convenience method to copy the scalar type and number of components from the input data to the output data.

virtual int	RequestData (vtkInformation request, vtkInformationVector inputVector, vtkInformationVector outputVector)
	This is called in response to a REQUEST_DATA request from the executive.

virtual void	ExecuteDataWithInformation (vtkDataObject output, vtkInformation outInfo)
	This is a convenience method that is implemented in many subclasses instead of RequestData.

virtual void	CopyAttributeData (vtkImageData in, vtkImageData out, vtkInformationVector **inputVector)
	Copy the other point and cell data.

virtual void	ExecuteData (vtkDataObject *output)
	This method is the old style execute method, provided for the sake of backwards compatibility with older filters and readers.

virtual void	Execute ()
	This method is the old style execute method, provided for the sake of backwards compatibility with older filters and readers.

virtual void	AllocateOutputData (vtkImageData out, vtkInformation outInfo, int *uExtent)
	Allocate the output data.

virtual vtkImageData *	AllocateOutputData (vtkDataObject out, vtkInformation outInfo)
	Allocate the output data.

int	FillOutputPortInformation (int port, vtkInformation *info) override
	These method should be reimplemented by subclasses that have more than a single input or single output.

int	FillInputPortInformation (int port, vtkInformation *info) override
	These method should be reimplemented by subclasses that have more than a single input or single output.

Protected Member Functions inherited from vtkAlgorithm
virtual vtkObjectBase *	NewInstanceInternal () const

	vtkAlgorithm ()

	~vtkAlgorithm () override

bool	CheckUpstreamAbort ()
	Checks to see if an upstream filter has been aborted.

virtual int	FillInputPortInformation (int port, vtkInformation *info)
	Fill the input port information objects for this algorithm.

virtual int	FillOutputPortInformation (int port, vtkInformation *info)
	Fill the output port information objects for this algorithm.

virtual void	SetNumberOfInputPorts (int n)
	Set the number of input ports used by the algorithm.

virtual void	SetNumberOfOutputPorts (int n)
	Set the number of output ports provided by the algorithm.

int	InputPortIndexInRange (int index, const char *action)

int	OutputPortIndexInRange (int index, const char *action)

int	GetInputArrayAssociation (int idx, vtkInformationVector **inputVector)
	Get the association of the actual data array for the input array specified by idx, this is only reasonable during the REQUEST_DATA pass.

vtkInformation *	GetInputArrayFieldInformation (int idx, vtkInformationVector **inputVector)
	This method takes in an index (as specified in SetInputArrayToProcess) and a pipeline information vector.

virtual vtkExecutive *	CreateDefaultExecutive ()
	Create a default executive.

void	ReportReferences (vtkGarbageCollector *) override

virtual void	SetNthInputConnection (int port, int index, vtkAlgorithmOutput *input)
	Replace the Nth connection on the given input port.

virtual void	SetNumberOfInputConnections (int port, int n)
	Set the number of input connections on the given input port.

void	SetInputDataInternal (int port, vtkDataObject *input)
	These methods are used by subclasses to implement methods to set data objects directly as input.

void	AddInputDataInternal (int port, vtkDataObject *input)

int	GetInputArrayAssociation (int idx, int connection, vtkInformationVector **inputVector)
	Filters that have multiple connections on one port can use this signature.

int	GetInputArrayAssociation (int idx, vtkDataObject *input)
	Filters that have multiple connections on one port can use this signature.

vtkDataArray *	GetInputArrayToProcess (int idx, vtkInformationVector **inputVector)
	Get the actual data array for the input array specified by idx, this is only reasonable during the REQUEST_DATA pass.

vtkDataArray *	GetInputArrayToProcess (int idx, vtkInformationVector **inputVector, int &association)
	Get the actual data array for the input array specified by idx, this is only reasonable during the REQUEST_DATA pass.

vtkDataArray *	GetInputArrayToProcess (int idx, int connection, vtkInformationVector **inputVector)
	Filters that have multiple connections on one port can use this signature.

vtkDataArray *	GetInputArrayToProcess (int idx, int connection, vtkInformationVector **inputVector, int &association)
	Filters that have multiple connections on one port can use this signature.

vtkDataArray *	GetInputArrayToProcess (int idx, vtkDataObject *input)
	Filters that have multiple connections on one port can use this signature.

vtkDataArray *	GetInputArrayToProcess (int idx, vtkDataObject *input, int &association)
	Filters that have multiple connections on one port can use this signature.

vtkAbstractArray *	GetInputAbstractArrayToProcess (int idx, vtkInformationVector **inputVector)
	Get the actual data array for the input array specified by idx, this is only reasonable during the REQUEST_DATA pass.

vtkAbstractArray *	GetInputAbstractArrayToProcess (int idx, vtkInformationVector **inputVector, int &association)
	Get the actual data array for the input array specified by idx, this is only reasonable during the REQUEST_DATA pass.

vtkAbstractArray *	GetInputAbstractArrayToProcess (int idx, int connection, vtkInformationVector **inputVector)
	Filters that have multiple connections on one port can use this signature.

vtkAbstractArray *	GetInputAbstractArrayToProcess (int idx, int connection, vtkInformationVector **inputVector, int &association)
	Filters that have multiple connections on one port can use this signature.

vtkAbstractArray *	GetInputAbstractArrayToProcess (int idx, vtkDataObject *input)
	Filters that have multiple connections on one port can use this signature.

vtkAbstractArray *	GetInputAbstractArrayToProcess (int idx, vtkDataObject *input, int &association)
	Filters that have multiple connections on one port can use this signature.

virtual void	SetErrorCode (unsigned long)
	The error code contains a possible error that occurred while reading or writing the file.

Protected Member Functions inherited from vtkObject
	vtkObject ()

	~vtkObject () override

void	RegisterInternal (vtkObjectBase *, vtkTypeBool check) override

void	UnRegisterInternal (vtkObjectBase *, vtkTypeBool check) override

void	InternalGrabFocus (vtkCommand mouseEvents, vtkCommand keypressEvents=nullptr)
	These methods allow a command to exclusively grab all events.

void	InternalReleaseFocus ()
	These methods allow a command to exclusively grab all events.

Protected Member Functions inherited from vtkObjectBase
	vtkObjectBase ()

virtual	~vtkObjectBase ()

virtual void	RegisterInternal (vtkObjectBase *, vtkTypeBool check)

virtual void	UnRegisterInternal (vtkObjectBase *, vtkTypeBool check)

virtual void	ReportReferences (vtkGarbageCollector *)

virtual void	ObjectFinalize ()

	vtkObjectBase (const vtkObjectBase &)

void	operator= (const vtkObjectBase &)

Protected Attributes
int	Initialized

int	FrameSize [3]

int	ClipRegion [6]

int	OutputWholeExtent [6]

double	DataSpacing [3]

double	DataOrigin [3]

int	OutputFormat

int	NumberOfScalarComponents

int	FrameOutputExtent [6]

int	LastNumberOfScalarComponents

int	LastOutputExtent [6]

int	Recording

int	Playing

float	FrameRate

int	FrameCount

double	StartTimeStamp

double	FrameTimeStamp

vtkTypeBool	AutoAdvance

int	NumberOfOutputFrames

float	Opacity

int	FlipFrames

int	OutputNeedsInitialization

vtkMultiThreader *	PlayerThreader

int	PlayerThreadId

std::mutex	FrameBufferMutex

int	FrameBufferBitsPerPixel

int	FrameBufferRowAlignment

int	FrameBufferExtent [6]

int	FrameBufferSize

int	FrameBufferIndex

int	FrameIndex

void **	FrameBuffer

double *	FrameBufferTimeStamps

Protected Attributes inherited from vtkAlgorithm
vtkTimeStamp	LastAbortCheckTime

vtkInformation *	Information

double	Progress

char *	ProgressText

vtkProgressObserver *	ProgressObserver

unsigned long	ErrorCode
	The error code contains a possible error that occurred while reading or writing the file.

Protected Attributes inherited from vtkObject
bool	Debug

vtkTimeStamp	MTime

vtkSubjectHelper *	SubjectHelper

std::string	ObjectName

Protected Attributes inherited from vtkObjectBase
std::atomic< int32_t >	ReferenceCount

vtkWeakPointerBase **	WeakPointers

Additional Inherited Members
Public Attributes inherited from vtkAlgorithm
std::atomic< vtkTypeBool >	AbortExecute

Static Protected Member Functions inherited from vtkAlgorithm
static vtkInformationIntegerKey *	PORT_REQUIREMENTS_FILLED ()

Static Protected Member Functions inherited from vtkObjectBase
static vtkMallocingFunction	GetCurrentMallocFunction ()

static vtkReallocingFunction	GetCurrentReallocFunction ()

static vtkFreeingFunction	GetCurrentFreeFunction ()

static vtkFreeingFunction	GetAlternateFreeFunction ()

Static Protected Attributes inherited from vtkAlgorithm
static vtkTimeStamp	LastAbortTime

static vtkExecutive *	DefaultExecutivePrototype

Detailed Description

Superclass of video input devices for VTK.

vtkVideoSource is a superclass for video input interfaces for VTK. The goal is to provide an interface which is very similar to the interface of a VCR, where the 'tape' is an internal frame buffer capable of holding a preset number of video frames. Specialized versions of this class record input from various video input sources. This base class records input from a noise source.

Warning: You must call the ReleaseSystemResources() method before the application exits. Otherwise the application might hang while trying to exit.

See also: vtkWin32VideoSource vtkMILVideoSource

Definition at line 33 of file vtkVideoSource.h.

Member Typedef Documentation

◆ Superclass

typedef vtkImageAlgorithm vtkVideoSource::Superclass

Definition at line 37 of file vtkVideoSource.h.

Constructor & Destructor Documentation

◆ vtkVideoSource()

vtkVideoSource::vtkVideoSource ( )

protected

◆ ~vtkVideoSource()

vtkVideoSource::~vtkVideoSource ( )

overrideprotected

Member Function Documentation

◆ New()

static vtkVideoSource * vtkVideoSource::New ( )

static

◆ IsTypeOf()

static vtkTypeBool vtkVideoSource::IsTypeOf ( const char * type )

static

◆ IsA()

virtual vtkTypeBool vtkVideoSource::IsA ( const char * name )

virtual

Return 1 if this class is the same type of (or a subclass of) the named class.

Returns 0 otherwise. This method works in combination with vtkTypeMacro found in vtkSetGet.h.

Reimplemented from vtkImageAlgorithm.

Reimplemented in vtkFFMPEGVideoSource, and vtkWin32VideoSource.

◆ SafeDownCast()

static vtkVideoSource * vtkVideoSource::SafeDownCast ( vtkObjectBase * o )

static

◆ NewInstanceInternal()

virtual vtkObjectBase * vtkVideoSource::NewInstanceInternal ( ) const

protectedvirtual

Reimplemented from vtkImageAlgorithm.

Reimplemented in vtkFFMPEGVideoSource, and vtkWin32VideoSource.

◆ NewInstance()

vtkVideoSource * vtkVideoSource::NewInstance ( ) const

◆ PrintSelf()

void vtkVideoSource::PrintSelf	(	ostream &	os,
		vtkIndent	indent
	)

overridevirtual

Methods invoked by print to print information about the object including superclasses.

Typically not called by the user (use Print() instead) but used in the hierarchical print process to combine the output of several classes.

Reimplemented from vtkImageAlgorithm.

Reimplemented in vtkWin32VideoSource.

◆ Record()

virtual void vtkVideoSource::Record ( )

virtual

Record incoming video at the specified FrameRate.

The recording continues indefinitely until Stop() is called.

Reimplemented in vtkFFMPEGVideoSource, and vtkWin32VideoSource.

◆ Play()

virtual void vtkVideoSource::Play ( )

virtual

Play through the 'tape' sequentially at the specified frame rate.

If you have just finished Recoding, you should call Rewind() first.

Reimplemented in vtkFFMPEGVideoSource, and vtkWin32VideoSource.

◆ Stop()

virtual void vtkVideoSource::Stop ( )

virtual

Stop recording or playing.

Reimplemented in vtkFFMPEGVideoSource, and vtkWin32VideoSource.

◆ Rewind()

virtual void vtkVideoSource::Rewind ( )

virtual

Rewind to the frame with the earliest timestamp.

Record operations will start on the following frame, therefore if you want to re-record over this frame you must call Seek(-1) before calling Grab() or Record().

◆ FastForward()

virtual void vtkVideoSource::FastForward ( )

virtual

FastForward to the last frame that was recorded (i.e.

to the frame that has the most recent timestamp).

◆ Seek()

virtual void vtkVideoSource::Seek ( int n )

virtual

Seek forwards or backwards by the specified number of frames (positive is forward, negative is backward).

◆ Grab()

virtual void vtkVideoSource::Grab ( )

virtual

Grab a single video frame.

Reimplemented in vtkFFMPEGVideoSource, and vtkWin32VideoSource.

◆ GetRecording()

virtual int vtkVideoSource::GetRecording ( )

virtual

Are we in record mode? (record mode and play mode are mutually exclusive).

◆ GetPlaying()

virtual int vtkVideoSource::GetPlaying ( )

virtual

Are we in play mode? (record mode and play mode are mutually exclusive).

◆ SetFrameSize() [1/2]

virtual void vtkVideoSource::SetFrameSize	(	int	x,
		int	y,
		int	z
	)

virtual

Set the full-frame size.

This must be an allowed size for the device, the device may either refuse a request for an illegal frame size or automatically choose a new frame size. The default is usually 320x240x1, but can be device specific. The 'depth' should always be 1 (unless you have a device that can handle 3D acquisition).

Reimplemented in vtkFFMPEGVideoSource, and vtkWin32VideoSource.

◆ SetFrameSize() [2/2]

virtual void vtkVideoSource::SetFrameSize ( int dim[3] )

inlinevirtual

Set the full-frame size.

This must be an allowed size for the device, the device may either refuse a request for an illegal frame size or automatically choose a new frame size. The default is usually 320x240x1, but can be device specific. The 'depth' should always be 1 (unless you have a device that can handle 3D acquisition).

Reimplemented in vtkFFMPEGVideoSource, and vtkWin32VideoSource.

Definition at line 107 of file vtkVideoSource.h.

◆ GetFrameSize() [1/3]

virtual int * vtkVideoSource::GetFrameSize ( )

virtual

Set the full-frame size.

This must be an allowed size for the device, the device may either refuse a request for an illegal frame size or automatically choose a new frame size. The default is usually 320x240x1, but can be device specific. The 'depth' should always be 1 (unless you have a device that can handle 3D acquisition).

◆ GetFrameSize() [2/3]

virtual void vtkVideoSource::GetFrameSize	(	int &	,
		int &	,
		int &
	)

virtual

Set the full-frame size.

This must be an allowed size for the device, the device may either refuse a request for an illegal frame size or automatically choose a new frame size. The default is usually 320x240x1, but can be device specific. The 'depth' should always be 1 (unless you have a device that can handle 3D acquisition).

◆ GetFrameSize() [3/3]

virtual void vtkVideoSource::GetFrameSize ( int [3] )

virtual

Set the full-frame size.

This must be an allowed size for the device, the device may either refuse a request for an illegal frame size or automatically choose a new frame size. The default is usually 320x240x1, but can be device specific. The 'depth' should always be 1 (unless you have a device that can handle 3D acquisition).

◆ SetFrameRate()

virtual void vtkVideoSource::SetFrameRate ( float rate )

virtual

Request a particular frame rate (default 30 frames per second).

Reimplemented in vtkFFMPEGVideoSource, and vtkWin32VideoSource.

◆ GetFrameRate()

virtual float vtkVideoSource::GetFrameRate ( )

virtual

Request a particular frame rate (default 30 frames per second).