Contains class declaration for ossimVideoImageSource. More...

#include <ossimVideoImageSource.h>

Inheritance diagram for ossimVideoImageSource:

Public Member Functions
virtual bool	setFrameTime (const double &t)
	Sets the time stamp (in seconds from start of video) for the frame of interest. More...

virtual ossim_uint32	getNumberOfLines (ossim_uint32 resLevel=0) const
	Changes the frame to the new index (frame count from start of video). More...

virtual ossim_uint32	getNumberOfSamples (ossim_uint32 resLevel=0) const

virtual ossim_uint32	getImageTileWidth () const

virtual ossim_uint32	getImageTileHeight () const

virtual ossim_uint32	getNumberOfInputBands () const
	Currently assuming all videos are 8-bit RGB. More...

virtual ossim_uint32	getNumberOfOutputBands () const
	Returns the number of bands in a tile returned from this TileSource. More...

virtual ossimScalarType	getOutputScalarType () const
	This will be used to query the output pixel type of the tile source. More...

virtual ossimRefPtr< ossimImageData >	getTile (const ossimIrect &rect, ossim_uint32 resLevel=0)=0

virtual ossimRefPtr< ossimImageGeometry >	getImageGeometry ()
	Returns the image geometry object associated with this tile source or NULL if not defined. More...

virtual bool	canConnectMyInputTo (ossim_int32 index, const ossimConnectableObject *object) const
	From ossimConnectableObject base class. Returns true if object is an ossimVideoSource. More...

virtual ossim_uint32	getNumberOfDecimationLevels () const
	Video frames have no overviews, only full-res. More...

virtual void	getDecimationFactor (ossim_uint32 resLevel, ossimDpt &result) const
	Video frames have no overviews, only full-res. More...

virtual void	getDecimationFactors (std::vector< ossimDpt > &decimations) const
	Video frames have no overviews, only full-res. More...

Public Member Functions inherited from ossimImageSource
	ossimImageSource (ossimObject *owner=0)

	ossimImageSource (ossimObject *owner, ossim_uint32 inputListSize, ossim_uint32 outputListSize, bool inputListIsFixedFlag=true, bool outputListIsFixedFlag=true)

virtual	~ossimImageSource ()

virtual ossimRefPtr< ossimImageData >	getTile (const ossimIpt &origin, ossim_uint32 resLevel=0)

virtual bool	getTile (ossimImageData *result, ossim_uint32 resLevel=0)
	Method to get a tile. More...

virtual ossimObject *	getObject ()
	For RTTI support. More...

virtual const ossimObject *	getObject () const
	For RTTI support. More...

virtual void	getOutputBandList (std::vector< ossim_uint32 > &bandList) const
	Initializes bandList. More...

virtual ossim_uint32	getTileWidth () const
	Returns the default processing tile width. More...

virtual ossim_uint32	getTileHeight () const
	Returns the default processing tile height. More...

virtual double	getNullPixelValue (ossim_uint32 band=0) const
	Each band has a null pixel associated with it. More...

virtual double	getMinPixelValue (ossim_uint32 band=0) const
	Returns the min pixel of the band. More...

virtual double	getMaxPixelValue (ossim_uint32 band=0) const
	Returns the max pixel of the band. More...

virtual ossimIrect	getBoundingRect (ossim_uint32 resLevel=0) const
	This will return the bounding rect of the source. More...

virtual void	getBoundingRect (ossimIrect &rect, ossim_uint32 resLevel=0) const
	Gets the bounding rectangle of the source. More...

virtual bool	saveState (ossimKeywordlist &kwl, const char *prefix=0) const
	Method to save the state of an object to a keyword list. More...

virtual bool	loadState (const ossimKeywordlist &kwl, const char *prefix=0)
	Method to the load (recreate) the state of an object from a keyword list. More...

virtual void	getValidImageVertices (std::vector< ossimIpt > &validVertices, ossimVertexOrdering ordering=OSSIM_CLOCKWISE_ORDER, ossim_uint32 resLevel=0) const
	ordering specifies how the vertices should be arranged. More...

virtual void	setImageGeometry (const ossimImageGeometry *geom)
	Default implementation sets geometry of the first input to the geometry specified. More...

virtual void	saveImageGeometry () const
	Default method to call input's saveImageGeometry. More...

virtual void	saveImageGeometry (const ossimFilename &geometry_file) const
	Default method to call input's saveImageGeometry. More...

virtual ossimRefPtr< ossimProperty >	getProperty (const ossimString &name) const

virtual void	setProperty (ossimRefPtr< ossimProperty > property)

virtual void	getPropertyNames (std::vector< ossimString > &propertyNames) const

virtual bool	isIndexedData () const

Public Member Functions inherited from ossimSource
	ossimSource (ossimObject *owner=0)

	ossimSource (ossimObject *owner, ossim_uint32 inputListSize, ossim_uint32 outputListSize, bool inputListIsFixedFlag=true, bool outputListIsFixedFlag=true)

virtual	~ossimSource ()

virtual bool	isSourceEnabled () const

virtual void	enableSource ()

virtual void	disableSource ()

virtual bool	getEnableFlag () const

virtual void	setEnableFlag (bool flag)

virtual bool	isInitialized () const

virtual void	setInitializedFlag (bool flag)

virtual std::ostream &	print (std::ostream &out) const
	Outputs theErrorStatus as an ossimErrorCode and an ossimString. More...

Public Member Functions inherited from ossimConnectableObject
	ossimConnectableObject (ossimObject *owner=0)
	Base constructor of this object. More...

	ossimConnectableObject (ossimObject *owner, ossim_int32 inputListSize, ossim_int32 outputListSize, bool inputListIsFixedFlag=true, bool outputListIsFixedFlag=true)

virtual	~ossimConnectableObject ()

void	setId (const ossimId &id)
	All connectable objects will have id's. More...

const ossimId &	getId () const
	Will allow us to get this object's id. More...

const ossimObject *	getOwner () const
	Fetches the current owner, most likely a container but not limited to one. More...

virtual void	changeOwner (ossimObject *owner)
	Permits changing the object's owner. More...

virtual void	setDescription (const ossimString &description)

virtual ossimString	getDescription () const

virtual bool	isConnected (ossimConnectableObjectDirectionType direction=CONNECTABLE_DIRECTION_INPUT) const
	will check the direction specified to see if all slots are full. More...

	OSSIM_DEPRECATE_METHOD (virtual ossimConnectableObject *findConnectableObject(const ossimId &id))

	OSSIM_DEPRECATE_METHOD (virtual ossimConnectableObject *findObjectOfType(RTTItypeid typeId, ossimConnectableObjectDirectionType directionType, bool recurse=true))

	OSSIM_DEPRECATE_METHOD (virtual ossimConnectableObject *findObjectOfType(const ossimString &obj, ossimConnectableObjectDirectionType directionType, bool recurse=true))

	OSSIM_DEPRECATE_METHOD (virtual ossimConnectableObject *findInputObjectOfType(const ossimString &className))

virtual ossim_int32	findInputIndex (const ossimConnectableObject *object)
	Return a valid index of the input list if the passed in object is found else return -1. More...

virtual ossim_int32	findInputIndex (const ossimId &id)
	Return a valid index of the input list if the passed id is found else return -1. More...

virtual ossim_int32	findOutputIndex (const ossimConnectableObject *object)
	Return a valid index of the output list if the passed in object is found else return -1. More...

virtual ossim_int32	findOutputIndex (const ossimId &id)
	Return a valid index of the output list if the passed in object is found else return -1. More...

virtual ossim_int32	getMyInputIndexToConnectTo (ossimConnectableObject *object) const
	Should return the first available index to connect to. More...

virtual ossim_int32	getMyOutputIndexToConnectTo (ossimConnectableObject *object) const
	Should return the first available index to connect to. More...

virtual bool	canConnectMyOutputTo (ossim_int32 myOutputIndex, const ossimConnectableObject *object) const
	default implementation is to allow anyone to connect to us. More...

virtual void	disconnect (ossimConnectableObject *object=0)
	Will disconnect the object passed in. More...

virtual void	disconnect (const ossimId &id)
	Will disconnect the object passed in. More...

virtual ossimRefPtr< ossimConnectableObject >	disconnectMyInput (ossim_int32 inputIndex, bool disconnectOutputFlag=true, bool createEventFlag=true)
	Will disconnect the object at the given input index and generate a connection event. More...

virtual void	disconnectMyInput (ossimConnectableObject *input, bool disconnectOutputFlag=true, bool createEventFlag=true)
	Finds the index of the passed in input and calls disconnectMyInput(inputIndex, disconnectOutputFlag, createEventFlag);. More...

virtual void	disconnectMyInputs (ConnectableObjectList &inputList, bool disconnectOutputFlag=true, bool createEventFlag=true)

virtual ossimRefPtr< ossimConnectableObject >	disconnectMyOutput (ossim_int32 outputIndex, bool disconnectInputFlag=true, bool createEventFlag=true)
	Will disconnect the object at the given output index and generate a connection event. More...

virtual void	disconnectMyOutput (ossimConnectableObject *output, bool disconnectInputFlag=true, bool createEventFlag=true)
	Will disconnect the output object. More...

virtual void	disconnectMyOutputs (ConnectableObjectList &outputList, bool disconnectOutputFlag=true, bool createEventFlag=true)

virtual void	disconnectAllInputs ()
	Will disconnect all of the input objects. More...

virtual void	disconnectAllOutputs ()
	Will disconnect all of the output objects. More...

virtual ossim_int32	connectMyInputTo (ossimConnectableObject *inputObject, bool makeOutputConnection=true, bool createEventFlag=true)
	Will try to connect this objects input to the passed in object. More...

virtual ossim_int32	connectMyInputTo (ossim_int32 inputIndex, ossimConnectableObject *inputObject, bool makeOutputConnection=true, bool createEventFlag=true)
	Will connect the specified input to the passed in object. More...

virtual bool	connectMyInputTo (ConnectableObjectList &inputList, bool makeOutputConnection=true, bool createEventFlag=true)

virtual ossim_int32	connectMyOutputTo (ossimConnectableObject *outputObject, bool makeInputConnection=true, bool createEventFlag=true)
	Will try to connect this objects output to the passed in object. More...

virtual bool	connectMyOutputTo (ConnectableObjectList &outputList, bool makeInputConnection=true, bool createEventFlag=true)

virtual bool	connectInputList (ConnectableObjectList &inputList)
	Will disconnect itself from all inputs and reset to the passed in input list. More...

virtual bool	connectOutputList (ConnectableObjectList &outputList)
	Will disconnect itself from all outputs and reset to the passed in output list. More...

virtual ossim_uint32	getNumberOfInputs () const
	Returns the number of input objects. More...

virtual ossim_uint32	getNumberOfOutputs () const
	Return the number of output objects. More...

ossimConnectableObject *	getInput (ossim_uint32 index=0)
	returns the object at the specified index. More...

const ossimConnectableObject *	getInput (ossim_uint32 index=0) const
	returns the object at the specified index. More...

ossimConnectableObject *	getOutput (ossim_uint32 index=0)
	returns the object at the specified index. More...

const ossimConnectableObject *	getOutput (ossim_uint32 index=0) const
	returns the object at the specified index. More...

virtual void	setNumberOfInputs (ossim_int32 numberOfInputs)
	Will set the number of inputs. More...

virtual bool	getInputListIsFixedFlag () const

virtual bool	getOutputListIsFixedFlag () const

virtual void	setNumberOfOutputs (ossim_int32 numberOfInputs)
	Will set the number of outputs. More...

const ConnectableObjectList &	getInputList () const

const ConnectableObjectList &	getOutputList () const

ConnectableObjectList &	getInputList ()

ConnectableObjectList &	getOutputList ()

	OSSIM_DEPRECATE_METHOD (virtual void findAllObjectsOfType(ConnectableObjectList &result, const RTTItypeid &typeInfo, bool recurse=true))

	OSSIM_DEPRECATE_METHOD (virtual void findAllObjectsOfType(ConnectableObjectList &result, const ossimString &className, bool recurse=true))

virtual void	propagateEventToOutputs (ossimEvent &event)

virtual void	propagateEventToInputs (ossimEvent &event)

virtual void	setProperty (const ossimString &name, const ossimString &value)

virtual ossim_uint32	saveStateOfAllInputs (ossimKeywordlist &kwl, bool saveThisStateFlag=true, ossim_uint32 objectIndex=1, const char *prefix=0) const
	Save the state of all inputs to a keyword list. More...

virtual bool	fillContainer (ossimConnectableContainer &container)
	Inserts this object and all of its children and inputs into the container provided. More...

bool	moveInputUp (const ossimId &id)
	Moves the input connection matching id up one in the connection list. More...

bool	moveInputDown (const ossimId &id)
	Moves the input connection matching id down one in the connection list. More...

bool	moveInputToTop (const ossimId &id)
	Moves the input connection matching id to the top of the connection list. More...

bool	moveInputToBottom (const ossimId &id)
	Moves the input connection matching id to the bottom of the connection list. More...

virtual void	accept (ossimVisitor &visitor)
	We will add a visitor interface for all connectable objects. More...

Public Member Functions inherited from ossimObject
	ossimObject ()

virtual	~ossimObject ()

virtual ossimObject *	dup () const

virtual ossimString	getShortName () const

virtual ossimString	getLongName () const

virtual ossimString	getClassName () const

virtual RTTItypeid	getType () const

virtual bool	canCastTo (ossimObject *obj) const

virtual bool	canCastTo (const RTTItypeid &id) const

virtual bool	canCastTo (const ossimString &parentClassName) const

virtual bool	isEqualTo (const ossimObject &obj, ossimCompareType compareType=OSSIM_COMPARE_FULL) const

Public Member Functions inherited from ossimReferenced
	ossimReferenced ()

	ossimReferenced (const ossimReferenced &)

ossimReferenced &	operator= (const ossimReferenced &)

void	ref () const
	increment the reference count by one, indicating that this object has another pointer which is referencing it. More...

void	unref () const
	decrement the reference count by one, indicating that a pointer to this object is referencing it. More...

void	unref_nodelete () const
	decrement the reference count by one, indicating that a pointer to this object is referencing it. More...

int	referenceCount () const

Public Member Functions inherited from ossimListenerManager
	ossimListenerManager ()

virtual	~ossimListenerManager ()

virtual void	fireEvent (ossimEvent &event)

virtual bool	addListener (ossimListener *listener)

virtual bool	removeListener (ossimListener *listener)

virtual bool	findListener (ossimListener *listener)

Public Member Functions inherited from ossimPropertyInterface
	ossimPropertyInterface ()

virtual	~ossimPropertyInterface ()

virtual ossimString	getPropertyValueAsString (const ossimString &name) const

void	getPropertyList (std::vector< ossimRefPtr< ossimProperty > > &propertyList) const

void	setProperties (std::vector< ossimRefPtr< ossimProperty > > &propertyList)

Public Member Functions inherited from ossimErrorStatusInterface
	ossimErrorStatusInterface ()

virtual	~ossimErrorStatusInterface ()

virtual ossimErrorCode	getErrorStatus () const

virtual ossimString	getErrorStatusString () const

virtual void	setErrorStatus (ossimErrorCode error_status) const

virtual void	setErrorStatus () const

virtual void	clearErrorStatus () const

bool	hasError () const

Protected Member Functions
	ossimVideoImageSource (ossimVideoSource *video, const double &frame_time_seconds=0)
	Constructor used when accessing a common video object (versus instantiating a new video for each frame. More...

	ossimVideoImageSource ()
	Default Constructor. More...

virtual void	initialize ()
	Common initialization code for all construction methods. More...

Protected Member Functions inherited from ossimImageSource
	ossimImageSource (const ossimImageSource &rhs)

const ossimImageSource &	operator= (const ossimImageSource &)

Protected Member Functions inherited from ossimSource
	ossimSource (const ossimSource &rhs)

const ossimSource &	operator= (const ossimSource &rhs)

Protected Member Functions inherited from ossimConnectableObject
ossimConnectableObject *	findObjectOfType (ConnectableObjectList *connectableList, ossimVisitor &visitor)

Protected Member Functions inherited from ossimReferenced
virtual	~ossimReferenced ()

Protected Member Functions inherited from ossimListenerManager
	ossimListenerManager (const ossimListenerManager &rhs)

Protected Attributes
double	m_frameTime
	seconds from start of video More...

ossimIrect	m_frameRect
	Always (0,0) based. More...

ossimRefPtr< ossimImageData >	m_tile

Protected Attributes inherited from ossimSource
bool	theEnableFlag

bool	theInitializedFlag

Protected Attributes inherited from ossimConnectableObject
ossimId	theId

ossimString	theDescription

ossimObject *	theOwner

bool	theInputListIsFixedFlag
	Indicates whether the theInputObjectList is fixed. More...

bool	theOutputListIsFixedFlag
	Indicates whether the theOutputObjectList is fixed. More...

ConnectableObjectList	theInputObjectList
	Holds a list of input objects. More...

ConnectableObjectList	theOutputObjectList
	Holds a list of output objects. More...

Protected Attributes inherited from ossimListenerManager
std::list< ossimListener * >	theListenerList

bool	theEnabledFlag

std::list< ossimListener * >	theDelayedAdd

std::list< ossimListener * >	theDelayedRemove

bool	theFireEventFlag

Protected Attributes inherited from ossimErrorStatusInterface
ossimErrorCode	theErrorStatus

Additional Inherited Members
Public Types inherited from ossimConnectableObject
enum	ossimConnectableObjectDirectionType { CONNECTABLE_DIRECTION_NONE = 0, CONNECTABLE_DIRECTION_INPUT = 1, CONNECTABLE_DIRECTION_OUTPUT = 2 }

typedef std::vector< ossimRefPtr< ossimConnectableObject > >	ConnectableObjectList

Detailed Description

Contains class declaration for ossimVideoImageSource.

This is the ossimImageSource-derived class representing a single frame in a video stream.

Definition at line 27 of file ossimVideoImageSource.h.

Constructor & Destructor Documentation

◆ ossimVideoImageSource() [1/2]

ossimVideoImageSource::ossimVideoImageSource	(	ossimVideoSource *	video,
		const double &	frame_time_seconds = `0`
	)

protected

Constructor used when accessing a common video object (versus instantiating a new video for each frame.

Definition at line 33 of file ossimVideoImageSource.cpp.

References initialize(), and setFrameTime().

 :  m_frameTime (-1.0)
 {
    initialize();
    setFrameTime(frame_time_seconds);
 }

◆ ossimVideoImageSource() [2/2]

ossimVideoImageSource::ossimVideoImageSource ( )

protected

Default Constructor.

Definition at line 24 of file ossimVideoImageSource.cpp.

 : m_frameTime (-1.0)
 {
 }

Member Function Documentation

◆ canConnectMyInputTo()

bool ossimVideoImageSource::canConnectMyInputTo	(	ossim_int32	index,
		const ossimConnectableObject *	object
	)		const

virtual

From ossimConnectableObject base class. Returns true if object is an ossimVideoSource.

Implements ossimConnectableObject.

Definition at line 189 of file ossimVideoImageSource.cpp.

References PTR_CAST.

 {
    return ( (!object || PTR_CAST(ossimVideoSource, object)) && (inputIndex == 0) );
 }

◆ getDecimationFactor()

void ossimVideoImageSource::getDecimationFactor	(	ossim_uint32	resLevel,
		ossimDpt &	result
	)		const

virtual

Video frames have no overviews, only full-res.

Reimplemented from ossimImageSource.

Definition at line 198 of file ossimVideoImageSource.cpp.

 {
    result = ossimDpt(0.0, 0.0);
    if (resLevel == 0)
       result = ossimDpt(1.0, 1.0);
 }

◆ getDecimationFactors()

void ossimVideoImageSource::getDecimationFactors ( std::vector< ossimDpt > & decimations ) const

virtual

Video frames have no overviews, only full-res.

Reimplemented from ossimImageSource.

Definition at line 208 of file ossimVideoImageSource.cpp.

 {
    decimations.clear();
    decimations.push_back(ossimDpt(1.0, 1.0));
 }

◆ getImageGeometry()

ossimRefPtr< ossimImageGeometry > ossimVideoImageSource::getImageGeometry ( )

virtual

Returns the image geometry object associated with this tile source or NULL if not defined.

The geometry contains full-to-local image transform as well as projection (image-to-world). Default implementation returns the image geometry object associated with the next
(left) input source (if any) connected to this source in the chain, or NULL.

Reimplemented from ossimImageSource.

Definition at line 173 of file ossimVideoImageSource.cpp.

References ossimVideoGeometry::getImageGeometry(), ossimConnectableObject::getInput(), ossimVideoSource::getVideoGeometry(), m_frameTime, and ossimRefPtr< T >::valid().

 {
    ossimVideoSource* video = dynamic_cast<ossimVideoSource*>(getInput());
    if (!video)
       return NULL;
 
    ossimRefPtr<ossimVideoGeometry> video_geometry = video->getVideoGeometry();
    if (!video_geometry.valid())
       return NULL;
 
    return video_geometry->getImageGeometry(m_frameTime);
 }

◆ getImageTileHeight()

virtual ossim_uint32 ossimVideoImageSource::getImageTileHeight ( ) const

inlinevirtual

Definition at line 43 of file ossimVideoImageSource.h.

43 { return getNumberOfLines(); }

ossimVideoImageSource::getNumberOfLines

virtual ossim_uint32 getNumberOfLines(ossim_uint32 resLevel=0) const

Changes the frame to the new index (frame count from start of video).

Definition: ossimVideoImageSource.cpp:149

◆ getImageTileWidth()

virtual ossim_uint32 ossimVideoImageSource::getImageTileWidth ( ) const

inlinevirtual

Definition at line 42 of file ossimVideoImageSource.h.

42 { return getNumberOfSamples(); }

ossimVideoImageSource::getNumberOfSamples

virtual ossim_uint32 getNumberOfSamples(ossim_uint32 resLevel=0) const

Definition: ossimVideoImageSource.cpp:161

◆ getNumberOfDecimationLevels()

virtual ossim_uint32 ossimVideoImageSource::getNumberOfDecimationLevels ( ) const

inlinevirtual

Video frames have no overviews, only full-res.

Reimplemented from ossimImageSource.

Definition at line 58 of file ossimVideoImageSource.h.

58 { return 1; }

◆ getNumberOfInputBands()

virtual ossim_uint32 ossimVideoImageSource::getNumberOfInputBands ( ) const

inlinevirtual

Currently assuming all videos are 8-bit RGB.

Implements ossimImageSource.

Definition at line 46 of file ossimVideoImageSource.h.

46 { return 3; }

◆ getNumberOfLines()

ossim_uint32 ossimVideoImageSource::getNumberOfLines ( ossim_uint32 resLevel = 0 ) const

virtual

Changes the frame to the new index (frame count from start of video).

This will necessarily change the image geometry. Returns false if frame count is outside of allowable range.

Definition at line 149 of file ossimVideoImageSource.cpp.

References ossimIrect::height(), and m_frameRect.

 {
    // Only full-image res level = 0 presently supported:
    if (resLevel != 0)
       return 0;
 
    return m_frameRect.height();
 }

◆ getNumberOfOutputBands()

virtual ossim_uint32 ossimVideoImageSource::getNumberOfOutputBands ( ) const

inlinevirtual

Returns the number of bands in a tile returned from this TileSource.

Reimplemented from ossimImageSource.

Definition at line 47 of file ossimVideoImageSource.h.

47 { return 3; }

◆ getNumberOfSamples()

ossim_uint32 ossimVideoImageSource::getNumberOfSamples ( ossim_uint32 resLevel = 0 ) const

virtual

Definition at line 161 of file ossimVideoImageSource.cpp.

References m_frameRect, and ossimIrect::width().

 {
    // Only full-image res level = 0 presently supported:
    if (resLevel != 0)
       return 0;
 
    return m_frameRect.width();
 }

◆ getOutputScalarType()

virtual ossimScalarType ossimVideoImageSource::getOutputScalarType ( ) const

inlinevirtual

This will be used to query the output pixel type of the tile source.

Please ignore the argument. It will soon be removed.

Reimplemented from ossimImageSource.

Definition at line 48 of file ossimVideoImageSource.h.

References OSSIM_UINT8.

48 { return OSSIM_UINT8; }

OSSIM_UINT8

8 bit unsigned integer

Definition: ossimConstants.h:281

◆ getTile()

virtual ossimRefPtr<ossimImageData> ossimVideoImageSource::getTile	(	const ossimIrect &	rect,
		ossim_uint32	resLevel = `0`
	)

pure virtual

Returns: the requested region of interest

Reimplemented from ossimImageSource.

◆ initialize()

void ossimVideoImageSource::initialize ( )

protectedvirtual

Common initialization code for all construction methods.

Implements ossimImageSource.

Definition at line 44 of file ossimVideoImageSource.cpp.

References ossimImageDataFactory::create(), ossimVideoSource::frameSize(), ossimConnectableObject::getInput(), ossimImageData::initialize(), ossimImageDataFactory::instance(), m_frameRect, m_tile, ossimImageData::setHeight(), and ossimImageData::setWidth().

Referenced by ossimVideoImageSource().

 {
    ossimVideoSource* video = dynamic_cast<ossimVideoSource*>(getInput());
    if (!video)
       return;
 
    // Establish the frame rect:
    ossimIpt frame_size (video->frameSize());
    m_frameRect = ossimIrect(0, 0, frame_size.x-1, frame_size.y-1);
     
    // Initialize the tile data buffer:
    m_tile = ossimImageDataFactory::instance()->create(this, this);
    m_tile->setWidth(frame_size.x);
 
    m_tile->setHeight(frame_size.y);
    m_tile->initialize();
 }

◆ setFrameTime()

bool ossimVideoImageSource::setFrameTime ( const double & t )

virtual

Sets the time stamp (in seconds from start of video) for the frame of interest.

Returns false if frame time is outside of allowable range.

This will necessarily change the image geometry. Returns false if frame time is outside of allowable range.

Definition at line 122 of file ossimVideoImageSource.cpp.

References ossimVideoSource::duration(), ossimConnectableObject::getInput(), m_frameTime, ossimVideoSource::seek(), and ossimVideoSource::SEEK_ABSOLUTE.

Referenced by ossimVideoImageSource().

 {
    ossimVideoSource* video = dynamic_cast<ossimVideoSource*>(getInput());
    if (!video)
       return false;
 
    // If the requested frame number corresponds with the current active frame, we're done:
    if (frameTime == m_frameTime)
       return true;
 
    // Check that it is not past the last frame. Use video geometry's duration as it is more accurate
    m_frameTime = frameTime;
    if (m_frameTime > video->duration())
    {
       m_frameTime = 0;
       return false;
    }
 
    // Seek to that frame:
    video->seek(m_frameTime, ossimVideoSource::SEEK_ABSOLUTE);
 
    return true;
 }

Member Data Documentation

◆ m_frameRect

ossimIrect ossimVideoImageSource::m_frameRect

protected

Always (0,0) based.

Definition at line 72 of file ossimVideoImageSource.h.

Referenced by getNumberOfLines(), getNumberOfSamples(), and initialize().

◆ m_frameTime

double ossimVideoImageSource::m_frameTime

protected

seconds from start of video

Definition at line 71 of file ossimVideoImageSource.h.

Referenced by getImageGeometry(), and setFrameTime().

◆ m_tile

ossimRefPtr<ossimImageData> ossimVideoImageSource::m_tile

protected

Definition at line 73 of file ossimVideoImageSource.h.

Referenced by initialize().

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

Public Member Functions

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ ossimVideoImageSource() [1/2]

◆ ossimVideoImageSource() [2/2]

Member Function Documentation

◆ canConnectMyInputTo()

◆ getDecimationFactor()

◆ getDecimationFactors()

◆ getImageGeometry()

◆ getImageTileHeight()

◆ getImageTileWidth()

◆ getNumberOfDecimationLevels()

◆ getNumberOfInputBands()

◆ getNumberOfLines()

◆ getNumberOfOutputBands()

◆ getNumberOfSamples()

◆ getOutputScalarType()

◆ getTile()

◆ initialize()

◆ setFrameTime()

Member Data Documentation

◆ m_frameRect

◆ m_frameTime

◆ m_tile