ITK  6.0.0
Insight Toolkit
Public Types | Public Member Functions | Protected Member Functions | Protected Attributes | List of all members
itk::VideoIOBase Class Referenceabstract

#include <itkVideoIOBase.h>

Detailed Description

Abstract superclass defines video IO interface.

VideoIOBase is a class that reads and/or writes video data using a particular external technique or external library (OpenCV, vxl). The VideoIOBase encapsulates both the reading and writing of data. The VideoIOBase is used by the VideoFileReader class (to read data) and the VideoFileWriter (to write data). Normally the user does not directly manipulate this class directly.

A Pluggable factory pattern is used. This allows different kinds of readers to be registered (even at run time) without having to modify the code in this class.

See also
VideoFileWriter
VideoFileReader

Definition at line 70 of file itkVideoIOBase.h.

+ Inheritance diagram for itk::VideoIOBase:
+ Collaboration diagram for itk::VideoIOBase:

Public Types

using CameraIDType = SizeValueType
 
using FrameOffsetType = SizeValueType
 
using Pointer = SmartPointer< Self >
 
using ReadFromEnum = VideoIOBaseEnums::ReadFrom
 
using Self = VideoIOBase
 
using SizeValueType = itk::SizeValueType
 
using Superclass = ImageIOBase
 
using TemporalOffsetType = double
 
using TemporalRatioType = double
 
- Public Types inherited from itk::ImageIOBase
using ArrayOfExtensionsType = std::vector< std::string >
 
using BufferSizeType = itk::OffsetValueType
 
using ConstPointer = SmartPointer< const Self >
 
using IndexValueType = itk::IndexValueType
 
using IOByteOrderEnum = itk::IOByteOrderEnum
 
using IOComponentEnum = itk::IOComponentEnum
 
using IOFileEnum = itk::IOFileEnum
 
using Pointer = SmartPointer< Self >
 
using Self = ImageIOBase
 
using SizeType = itk::intmax_t
 
using SizeValueType = itk::SizeValueType
 
using Superclass = LightProcessObject
 
- Public Types inherited from itk::LightProcessObject
using ConstPointer = SmartPointer< const Self >
 
using Pointer = SmartPointer< Self >
 
using Self = LightProcessObject
 
using Superclass = Object
 
- Public Types inherited from itk::Object
using ConstPointer = SmartPointer< const Self >
 
using Pointer = SmartPointer< Self >
 
using Self = Object
 
using Superclass = LightObject
 
- Public Types inherited from itk::LightObject
using ConstPointer = SmartPointer< const Self >
 
using Pointer = SmartPointer< Self >
 
using Self = LightObject
 

Public Member Functions

virtual bool CanReadCamera (CameraIDType cameraID) const =0
 
virtual void FinishReadingOrWriting ()=0
 
const char * GetNameOfClass () const override
 
ReadFromEnum GetReadFrom ()
 
virtual bool SetNextFrameToRead (FrameOffsetType frameNumber)=0
 
virtual void SetReadFromCamera ()=0
 
virtual void SetReadFromFile ()=0
 
virtual void SetWriterParameters (TemporalRatioType framesPerSecond, const std::vector< SizeValueType > &dim, const char *fourCC, unsigned int nChannels, IOComponentEnum componentType)=0
 
virtual TemporalOffsetType GetPositionInMSec () const =0
 
virtual TemporalRatioType GetRatio () const =0
 
virtual FrameOffsetType GetFrameTotal () const =0
 
virtual TemporalRatioType GetFramesPerSecond () const =0
 
virtual FrameOffsetType GetCurrentFrame () const =0
 
virtual FrameOffsetType GetLastIFrame () const =0
 
- Public Member Functions inherited from itk::ImageIOBase
virtual bool CanReadFile (const char *)=0
 
virtual bool CanStreamRead ()
 
virtual bool CanStreamWrite ()
 
virtual bool CanWriteFile (const char *)=0
 
virtual ImageIORegion GenerateStreamableReadRegionFromRequestedRegion (const ImageIORegion &requested) const
 
virtual unsigned int GetActualNumberOfSplitsForWriting (unsigned int numberOfRequestedSplits, const ImageIORegion &pasteRegion, const ImageIORegion &largestPossibleRegion)
 
std::string GetByteOrderAsString (IOByteOrderEnum) const
 
virtual unsigned int GetComponentSize () const
 
virtual IOComponentEnum GetComponentType () const
 
virtual const std::type_info & GetComponentTypeInfo () const
 
virtual int GetCompressionLevel () const
 
virtual const std::string & GetCompressor () const
 
virtual std::vector< double > GetDefaultDirection (unsigned int k) const
 
virtual SizeValueType GetDimensions (unsigned int i) const
 
virtual std::vector< double > GetDirection (unsigned int i) const
 
std::string GetFileTypeAsString (IOFileEnum) const
 
SizeType GetImageSizeInBytes () const
 
SizeType GetImageSizeInComponents () const
 
SizeType GetImageSizeInPixels () const
 
virtual bool GetIsReadAsScalarPlusPalette () const
 
virtual unsigned int GetNumberOfDimensions () const
 
virtual double GetOrigin (unsigned int i) const
 
virtual SizeType GetPixelStride () const
 
virtual double GetSpacing (unsigned int i) const
 
virtual ImageIORegion GetSplitRegionForWriting (unsigned int ithPiece, unsigned int numberOfActualSplits, const ImageIORegion &pasteRegion, const ImageIORegion &largestPossibleRegion)
 
const ArrayOfExtensionsTypeGetSupportedReadExtensions () const
 
const ArrayOfExtensionsTypeGetSupportedWriteExtensions () const
 
virtual void Read (void *buffer)=0
 
virtual void ReadImageInformation ()=0
 
void SetByteOrderToLittleEndian ()
 
virtual void SetComponentType (const IOComponentEnum _arg)
 
virtual void SetCompressionLevel (int _arg)
 
virtual void SetCompressor (std::string _c)
 
virtual void SetDirection (unsigned int i, const std::vector< double > &direction)
 
virtual void SetDirection (unsigned int i, const vnl_vector< double > &direction)
 
void SetFileTypeToBinary ()
 
void SetNumberOfDimensions (unsigned int)
 
virtual void SetOrigin (unsigned int i, double origin)
 
virtual void SetSpacing (unsigned int i, double spacing)
 
template<typename TPixel >
void SetTypeInfo (const TPixel *)
 
virtual bool SupportsDimension (unsigned long dim)
 
virtual void Write (const void *buffer)=0
 
virtual void WriteImageInformation ()=0
 
virtual void SetFileName (const char *_arg)
 
virtual const char * GetFileName () const
 
virtual void SetDimensions (unsigned int i, SizeValueType dim)
 
virtual void SetIORegion (ImageIORegion _arg)
 
virtual const ImageIORegionGetIORegion () const
 
virtual void SetPixelType (const itk::CommonEnums::IOPixel _arg)
 
virtual itk::CommonEnums::IOPixel GetPixelType () const
 
virtual void SetNumberOfComponents (unsigned int _arg)
 
virtual const unsigned int & GetNumberOfComponents () const
 
virtual void SetUseCompression (bool _arg)
 
virtual bool GetUseCompression () const
 
virtual void UseCompressionOn ()
 
virtual void SetUseStreamedReading (bool _arg)
 
virtual bool GetUseStreamedReading () const
 
virtual void UseStreamedReadingOn ()
 
virtual void SetUseStreamedWriting (bool _arg)
 
virtual bool GetUseStreamedWriting () const
 
virtual void UseStreamedWritingOn ()
 
virtual void SetExpandRGBPalette (bool _arg)
 
virtual bool GetExpandRGBPalette () const
 
virtual void ExpandRGBPaletteOn ()
 
virtual void SetWritePalette (bool _arg)
 
virtual bool GetWritePalette () const
 
virtual void WritePaletteOn ()
 
virtual void SetFileType (const IOFileEnum _arg)
 
virtual IOFileEnum GetFileType () const
 
void SetFileTypeToASCII ()
 
virtual void SetByteOrder (const IOByteOrderEnum _arg)
 
virtual IOByteOrderEnum GetByteOrder () const
 
void SetByteOrderToBigEndian ()
 
template<typename TPixel >
void SetPixelTypeInfo (const TPixel *)
 
template<typename TPixel >
void SetPixelTypeInfo (const RGBPixel< TPixel > *)
 
template<typename TPixel >
void SetPixelTypeInfo (const RGBAPixel< TPixel > *)
 
template<unsigned int VLength>
void SetPixelTypeInfo (const Offset< VLength > *)
 
template<typename TPixel , unsigned int VLength>
void SetPixelTypeInfo (const Vector< TPixel, VLength > *)
 
template<typename TCoordinate , unsigned int VPointDimension>
void SetPixelTypeInfo (const Point< TCoordinate, VPointDimension > *)
 
template<typename TPixel , unsigned int VLength>
void SetPixelTypeInfo (const CovariantVector< TPixel, VLength > *)
 
template<typename TPixel , unsigned int VLength>
void SetPixelTypeInfo (const SymmetricSecondRankTensor< TPixel, VLength > *)
 
template<typename TPixel >
void SetPixelTypeInfo (const DiffusionTensor3D< TPixel > *)
 
template<typename TPixel >
void SetPixelTypeInfo (const std::complex< TPixel > *)
 
template<typename TPixel , unsigned int VLength>
void SetPixelTypeInfo (const FixedArray< TPixel, VLength > *)
 
template<typename TPixel >
void SetPixelTypeInfo (const VariableLengthVector< TPixel > *)
 
template<typename TValue >
void SetPixelTypeInfo (const Array< TValue > *)
 
template<typename TPixel , unsigned int VLength>
void SetPixelTypeInfo (const Matrix< TPixel, VLength, VLength > *)
 
template<typename TValue >
void SetPixelTypeInfo (const VariableSizeMatrix< TValue > *)
 
- Public Member Functions inherited from itk::LightProcessObject
virtual void AbortGenerateDataOn ()
 
virtual const bool & GetAbortGenerateData () const
 
virtual void SetAbortGenerateData (bool _arg)
 
virtual void UpdateOutputData ()
 
void UpdateProgress (float amount)
 
virtual void SetProgress (float _arg)
 
virtual const float & GetProgress () const
 
- Public Member Functions inherited from itk::Object
unsigned long AddObserver (const EventObject &event, Command *cmd) const
 
unsigned long AddObserver (const EventObject &event, std::function< void(const EventObject &)> function) const
 
LightObject::Pointer CreateAnother () const override
 
virtual void DebugOff () const
 
virtual void DebugOn () const
 
CommandGetCommand (unsigned long tag)
 
bool GetDebug () const
 
MetaDataDictionaryGetMetaDataDictionary ()
 
const MetaDataDictionaryGetMetaDataDictionary () const
 
virtual ModifiedTimeType GetMTime () const
 
virtual const TimeStampGetTimeStamp () const
 
bool HasObserver (const EventObject &event) const
 
void InvokeEvent (const EventObject &)
 
void InvokeEvent (const EventObject &) const
 
virtual void Modified () const
 
void Register () const override
 
void RemoveAllObservers ()
 
void RemoveObserver (unsigned long tag) const
 
void SetDebug (bool debugFlag) const
 
void SetReferenceCount (int) override
 
void UnRegister () const noexcept override
 
void SetMetaDataDictionary (const MetaDataDictionary &rhs)
 
void SetMetaDataDictionary (MetaDataDictionary &&rrhs)
 
virtual void SetObjectName (std::string _arg)
 
virtual const std::string & GetObjectName () const
 
- Public Member Functions inherited from itk::LightObject
Pointer Clone () const
 
virtual void Delete ()
 
virtual int GetReferenceCount () const
 
void Print (std::ostream &os, Indent indent=0) const
 

Protected Member Functions

void PrintSelf (std::ostream &os, Indent indent) const override
 
 VideoIOBase ()
 
 ~VideoIOBase () override
 
- Protected Member Functions inherited from itk::ImageIOBase
void AddSupportedReadExtension (const char *extension)
 
void AddSupportedWriteExtension (const char *extension)
 
void ComputeStrides ()
 
virtual unsigned int GetActualNumberOfSplitsForWritingCanStreamWrite (unsigned int numberOfRequestedSplits, const ImageIORegion &pasteRegion) const
 
SizeType GetComponentStride () const
 
virtual const ImageRegionSplitterBaseGetImageRegionSplitter () const
 
virtual unsigned int GetPixelSize () const
 
SizeType GetRowStride () const
 
SizeType GetSliceStride () const
 
virtual ImageIORegion GetSplitRegionForWritingCanStreamWrite (unsigned int ithPiece, unsigned int numberOfActualSplits, const ImageIORegion &pasteRegion) const
 
 ImageIOBase ()
 
virtual void InternalSetCompressor (const std::string &_compressor)
 
virtual void OpenFileForReading (std::ifstream &inputStream, const std::string &filename, bool ascii=false)
 
virtual void OpenFileForWriting (std::ofstream &outputStream, const std::string &filename, bool truncate=true, bool ascii=false)
 
virtual void ReadBufferAsASCII (std::istream &is, void *buffer, IOComponentEnum ctype, SizeType numComp)
 
bool ReadBufferAsBinary (std::istream &is, void *buffer, SizeType num)
 
virtual void Reset (const bool freeDynamic=true)
 
void Resize (const unsigned int numDimensions, const unsigned int *dimensions)
 
void SetSupportedReadExtensions (const ArrayOfExtensionsType &)
 
void SetSupportedWriteExtensions (const ArrayOfExtensionsType &)
 
virtual void WriteBufferAsASCII (std::ostream &os, const void *buffer, IOComponentEnum ctype, SizeType numComp)
 
 ~ImageIOBase () override
 
virtual bool HasSupportedReadExtension (const char *fileName, bool ignoreCase=true)
 
virtual bool HasSupportedWriteExtension (const char *fileName, bool ignoreCase=true)
 
virtual void SetMaximumCompressionLevel (int)
 
virtual int GetMaximumCompressionLevel () const
 
- Protected Member Functions inherited from itk::LightProcessObject
virtual void GenerateData ()
 
 LightProcessObject ()
 
 ~LightProcessObject () override
 
- Protected Member Functions inherited from itk::Object
 Object ()
 
bool PrintObservers (std::ostream &os, Indent indent) const
 
virtual void SetTimeStamp (const TimeStamp &timeStamp)
 
 ~Object () override
 
- 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 ()
 

Protected Attributes

FrameOffsetType m_CurrentFrame {}
 
TemporalRatioType m_FramesPerSecond { 0.0 }
 
FrameOffsetType m_FrameTotal {}
 
FrameOffsetType m_IFrameInterval {}
 
FrameOffsetType m_LastIFrame {}
 
TemporalOffsetType m_PositionInMSec { 0.0 }
 
TemporalRatioType m_Ratio { 0.0 }
 
bool m_ReaderOpen { false }
 
ReadFromEnum m_ReadFrom { ReadFromEnum::ReadFromFile }
 
bool m_WriterOpen { false }
 
- Protected Attributes inherited from itk::ImageIOBase
IOByteOrderEnum m_ByteOrder { IOByteOrderEnum::OrderNotApplicable }
 
IOComponentEnum m_ComponentType { IOComponentEnum::UNKNOWNCOMPONENTTYPE }
 
int m_CompressionLevel { 30 }
 
std::string m_Compressor { "uninitialized" }
 
std::vector< SizeValueTypem_Dimensions {}
 
std::vector< std::vector< double > > m_Direction {}
 
bool m_ExpandRGBPalette {}
 
std::string m_FileName {}
 
IOFileEnum m_FileType { IOFileEnum::TypeNotApplicable }
 
bool m_Initialized {}
 
ImageIORegion m_IORegion {}
 
bool m_IsReadAsScalarPlusPalette {}
 
int m_MaximumCompressionLevel { 100 }
 
unsigned int m_NumberOfComponents {}
 
unsigned int m_NumberOfDimensions { 0 }
 
std::vector< double > m_Origin {}
 
IOPixelEnum m_PixelType { IOPixelEnum::SCALAR }
 
std::vector< double > m_Spacing {}
 
std::vector< SizeTypem_Strides {}
 
bool m_UseCompression { false }
 
bool m_UseStreamedReading {}
 
bool m_UseStreamedWriting {}
 
bool m_WritePalette {}
 
- Protected Attributes inherited from itk::LightObject
std::atomic< int > m_ReferenceCount {}
 

Additional Inherited Members

- Static Public Member Functions inherited from itk::ImageIOBase
static std::string GetComponentTypeAsString (IOComponentEnum)
 
static IOComponentEnum GetComponentTypeFromString (const std::string &typeString)
 
static std::string GetPixelTypeAsString (IOPixelEnum)
 
static IOPixelEnum GetPixelTypeFromString (const std::string &pixelString)
 
- Static Public Member Functions inherited from itk::LightProcessObject
static Pointer New ()
 
- Static Public Member Functions inherited from itk::Object
static bool GetGlobalWarningDisplay ()
 
static void GlobalWarningDisplayOff ()
 
static void GlobalWarningDisplayOn ()
 
static Pointer New ()
 
static void SetGlobalWarningDisplay (bool val)
 
- Static Public Member Functions inherited from itk::LightObject
static void BreakOnError ()
 
static Pointer New ()
 

Member Typedef Documentation

◆ CameraIDType

Video-specific type alias

Definition at line 87 of file itkVideoIOBase.h.

◆ FrameOffsetType

Definition at line 83 of file itkVideoIOBase.h.

◆ Pointer

Definition at line 78 of file itkVideoIOBase.h.

◆ ReadFromEnum

Definition at line 98 of file itkVideoIOBase.h.

◆ Self

Standard class type aliases.

Definition at line 76 of file itkVideoIOBase.h.

◆ SizeValueType

Definition at line 79 of file itkVideoIOBase.h.

◆ Superclass

Definition at line 77 of file itkVideoIOBase.h.

◆ TemporalOffsetType

Frame offset type alias

Definition at line 82 of file itkVideoIOBase.h.

◆ TemporalRatioType

Definition at line 84 of file itkVideoIOBase.h.

Constructor & Destructor Documentation

◆ VideoIOBase()

itk::VideoIOBase::VideoIOBase ( )
protected

◆ ~VideoIOBase()

itk::VideoIOBase::~VideoIOBase ( )
overrideprotected

Member Function Documentation

◆ CanReadCamera()

virtual bool itk::VideoIOBase::CanReadCamera ( CameraIDType  cameraID) const
pure virtual

Return whether or not the VideoIO can read from a camera. The cameraID can be a camera number for OpenCV or a guid for VXL

Implemented in itk::FileListVideoIO, itk::VXLVideoIO, and itk::OpenCVVideoIO.

◆ FinishReadingOrWriting()

virtual void itk::VideoIOBase::FinishReadingOrWriting ( )
pure virtual

Close the reader and writer and reset members

Implemented in itk::FileListVideoIO, itk::VXLVideoIO, and itk::OpenCVVideoIO.

◆ GetCurrentFrame()

virtual FrameOffsetType itk::VideoIOBase::GetCurrentFrame ( ) const
pure virtual

Virtual accessor functions to be implemented in each derived class

Implemented in itk::FileListVideoIO, itk::VXLVideoIO, and itk::OpenCVVideoIO.

◆ GetFramesPerSecond()

virtual TemporalRatioType itk::VideoIOBase::GetFramesPerSecond ( ) const
pure virtual

Virtual accessor functions to be implemented in each derived class

Implemented in itk::FileListVideoIO, itk::VXLVideoIO, and itk::OpenCVVideoIO.

◆ GetFrameTotal()

virtual FrameOffsetType itk::VideoIOBase::GetFrameTotal ( ) const
pure virtual

Virtual accessor functions to be implemented in each derived class

Implemented in itk::FileListVideoIO, itk::VXLVideoIO, and itk::OpenCVVideoIO.

◆ GetLastIFrame()

virtual FrameOffsetType itk::VideoIOBase::GetLastIFrame ( ) const
pure virtual

Virtual accessor functions to be implemented in each derived class

Implemented in itk::FileListVideoIO, itk::VXLVideoIO, and itk::OpenCVVideoIO.

◆ GetNameOfClass()

const char* itk::VideoIOBase::GetNameOfClass ( ) const
overridevirtual
See also
LightObject::GetNameOfClass()

Reimplemented from itk::ImageIOBase.

Reimplemented in itk::OpenCVVideoIO, and itk::VXLVideoIO.

◆ GetPositionInMSec()

virtual TemporalOffsetType itk::VideoIOBase::GetPositionInMSec ( ) const
pure virtual

Virtual accessor functions to be implemented in each derived class

Implemented in itk::FileListVideoIO, itk::VXLVideoIO, and itk::OpenCVVideoIO.

◆ GetRatio()

virtual TemporalRatioType itk::VideoIOBase::GetRatio ( ) const
pure virtual

Virtual accessor functions to be implemented in each derived class

Implemented in itk::FileListVideoIO, itk::VXLVideoIO, and itk::OpenCVVideoIO.

◆ GetReadFrom()

ReadFromEnum itk::VideoIOBase::GetReadFrom ( )
inline

Get the current read type

Definition at line 116 of file itkVideoIOBase.h.

◆ PrintSelf()

void itk::VideoIOBase::PrintSelf ( std::ostream &  os,
Indent  indent 
) const
overrideprotectedvirtual

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 itk::ImageIOBase.

Reimplemented in itk::OpenCVVideoIO, and itk::VXLVideoIO.

◆ SetNextFrameToRead()

virtual bool itk::VideoIOBase::SetNextFrameToRead ( FrameOffsetType  frameNumber)
pure virtual

Set the next frame that should be read. Return true if you operation successful

Implemented in itk::FileListVideoIO, itk::VXLVideoIO, and itk::OpenCVVideoIO.

◆ SetReadFromCamera()

virtual void itk::VideoIOBase::SetReadFromCamera ( )
pure virtual

Set to reading from a camera

Implemented in itk::FileListVideoIO, itk::VXLVideoIO, and itk::OpenCVVideoIO.

◆ SetReadFromFile()

virtual void itk::VideoIOBase::SetReadFromFile ( )
pure virtual

Set to reading from file

Implemented in itk::FileListVideoIO, itk::VXLVideoIO, and itk::OpenCVVideoIO.

◆ SetWriterParameters()

virtual void itk::VideoIOBase::SetWriterParameters ( TemporalRatioType  framesPerSecond,
const std::vector< SizeValueType > &  dim,
const char *  fourCC,
unsigned int  nChannels,
IOComponentEnum  componentType 
)
pure virtual

Set Writer Parameters

Implemented in itk::FileListVideoIO, itk::VXLVideoIO, and itk::OpenCVVideoIO.

Member Data Documentation

◆ m_CurrentFrame

FrameOffsetType itk::VideoIOBase::m_CurrentFrame {}
protected

Definition at line 167 of file itkVideoIOBase.h.

◆ m_FramesPerSecond

TemporalRatioType itk::VideoIOBase::m_FramesPerSecond { 0.0 }
protected

Definition at line 165 of file itkVideoIOBase.h.

◆ m_FrameTotal

FrameOffsetType itk::VideoIOBase::m_FrameTotal {}
protected

Definition at line 166 of file itkVideoIOBase.h.

◆ m_IFrameInterval

FrameOffsetType itk::VideoIOBase::m_IFrameInterval {}
protected

Definition at line 168 of file itkVideoIOBase.h.

◆ m_LastIFrame

FrameOffsetType itk::VideoIOBase::m_LastIFrame {}
protected

Definition at line 169 of file itkVideoIOBase.h.

◆ m_PositionInMSec

TemporalOffsetType itk::VideoIOBase::m_PositionInMSec { 0.0 }
protected

Definition at line 171 of file itkVideoIOBase.h.

◆ m_Ratio

TemporalRatioType itk::VideoIOBase::m_Ratio { 0.0 }
protected

Definition at line 170 of file itkVideoIOBase.h.

◆ m_ReaderOpen

bool itk::VideoIOBase::m_ReaderOpen { false }
protected

Definition at line 173 of file itkVideoIOBase.h.

◆ m_ReadFrom

ReadFromEnum itk::VideoIOBase::m_ReadFrom { ReadFromEnum::ReadFromFile }
protected

Member Variables

Definition at line 164 of file itkVideoIOBase.h.

◆ m_WriterOpen

bool itk::VideoIOBase::m_WriterOpen { false }
protected

Definition at line 172 of file itkVideoIOBase.h.


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