ITK  5.0.0
Insight Segmentation and Registration Toolkit
Public Types | Public Member Functions | Protected Member Functions | Protected Attributes | List of all members
itk::VideoIOBase Class Referenceabstract

#include <itkVideoIOBase.h>

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

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 49 of file itkVideoIOBase.h.

Public Types

using CameraIDType = SizeValueType
 
using FrameOffsetType = SizeValueType
 
using Pointer = SmartPointer< Self >
 
enum  ReadType {
  ReadFromFile,
  ReadFromCamera
}
 
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
 
enum  ByteOrder {
  BigEndian,
  LittleEndian,
  OrderNotApplicable
}
 
using ConstPointer = SmartPointer< const Self >
 
enum  FileType {
  ASCII,
  Binary,
  TypeNotApplicable
}
 
using IndexValueType = ::itk::IndexValueType
 
enum  IOComponentType {
  UNKNOWNCOMPONENTTYPE,
  UCHAR,
  CHAR,
  USHORT,
  SHORT,
  UINT,
  INT,
  ULONG,
  LONG,
  ULONGLONG,
  LONGLONG,
  FLOAT,
  DOUBLE
}
 
enum  IOPixelType {
  UNKNOWNPIXELTYPE,
  SCALAR,
  RGB,
  RGBA,
  OFFSET,
  VECTOR,
  POINT,
  COVARIANTVECTOR,
  SYMMETRICSECONDRANKTENSOR,
  DIFFUSIONTENSOR3D,
  COMPLEX,
  FIXEDARRAY,
  MATRIX
}
 
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
 
virtual const char * GetNameOfClass () const
 
ReadType GetReadType ()
 
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, IOComponentType 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 (ByteOrder) const
 
virtual unsigned int GetComponentSize () const
 
virtual IOComponentType GetComponentType () const
 
virtual const std::type_info & GetComponentTypeInfo () const
 
virtual std::vector< double > GetDefaultDirection (unsigned int i) const
 
virtual SizeValueType GetDimensions (unsigned int i) const
 
virtual std::vector< double > GetDirection (unsigned int i) const
 
std::string GetFileTypeAsString (FileType) 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 IOComponentType _arg)
 
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)
 
template<typename TPixel , unsigned VLength>
void SetPixelTypeInfo (const SymmetricSecondRankTensor< TPixel, VLength > *)
 
template<typename TPixel >
void SetPixelTypeInfo (const DiffusionTensor3D< TPixel > *)
 
template<typename TPixel , unsigned VLength>
void SetPixelTypeInfo (const Matrix< TPixel, VLength, VLength > *)
 
template<typename TPixel >
void SetPixelTypeInfo (const std::complex< TPixel > *)
 
template<unsigned VLength>
void SetPixelTypeInfo (const Offset< VLength > *)
 
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 IOPixelType _arg)
 
virtual IOPixelType 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 UseCompressionOff ()
 
virtual void SetUseStreamedReading (bool _arg)
 
virtual bool GetUseStreamedReading () const
 
virtual void UseStreamedReadingOn ()
 
virtual void UseStreamedReadingOff ()
 
virtual void SetUseStreamedWriting (bool _arg)
 
virtual bool GetUseStreamedWriting () const
 
virtual void UseStreamedWritingOn ()
 
virtual void UseStreamedWritingOff ()
 
virtual void SetExpandRGBPalette (bool _arg)
 
virtual bool GetExpandRGBPalette () const
 
virtual void ExpandRGBPaletteOn ()
 
virtual void ExpandRGBPaletteOff ()
 
virtual void SetFileType (const FileType _arg)
 
virtual FileType GetFileType () const
 
void SetFileTypeToASCII ()
 
virtual void SetByteOrder (const ByteOrder _arg)
 
virtual ByteOrder 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<typename TPixel , unsigned VLength>
void SetPixelTypeInfo (const Vector< TPixel, VLength > *)
 
template<typename TPixel >
void SetPixelTypeInfo (const VariableLengthVector< TPixel > *)
 
template<typename TPixel , unsigned VLength>
void SetPixelTypeInfo (const CovariantVector< TPixel, VLength > *)
 
template<typename TPixel , unsigned VLength>
void SetPixelTypeInfo (const FixedArray< TPixel, VLength > *)
 
- Public Member Functions inherited from itk::LightProcessObject
virtual void AbortGenerateDataOff ()
 
virtual void AbortGenerateDataOn ()
 
virtual ::itk::LightObject::Pointer CreateAnother () const
 
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 *)
 
unsigned long AddObserver (const EventObject &event, Command *) 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)
 
void SetDebug (bool debugFlag) const
 
void SetReferenceCount (int) override
 
void UnRegister () const noexceptoverride
 
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
virtual void Delete ()
 
virtual int GetReferenceCount () const
 
 itkCloneMacro (Self)
 
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
ImageRegionSplitterBase
GetImageRegionSplitter () 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 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 &os, void *buffer, IOComponentType ctype, SizeType numberOfBytesToBeRead)
 
bool ReadBufferAsBinary (std::istream &os, void *buffer, SizeType numberOfBytesToBeRead)
 
virtual void Reset (const bool freeDynamic=true)
 
void Resize (const unsigned int numDimensions, const unsigned int *dimensions)
 
virtual void WriteBufferAsASCII (std::ostream &os, const void *buffer, IOComponentType ctype, SizeType numberOfBytesToWrite)
 
 ~ImageIOBase () override
 
virtual bool HasSupportedReadExtension (const char *fileName, bool ignoreCase=true)
 
virtual bool HasSupportedWriteExtension (const char *fileName, bool ignoreCase=true)
 
- 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 &time)
 
 ~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}
 
ReadType m_ReadType {ReadFromFile}
 
bool m_WriterOpen {false}
 
- Protected Attributes inherited from itk::ImageIOBase
ByteOrder m_ByteOrder {OrderNotApplicable}
 
IOComponentType m_ComponentType {UNKNOWNCOMPONENTTYPE}
 
std::vector< SizeValueTypem_Dimensions
 
std::vector< std::vector
< double > > 
m_Direction
 
bool m_ExpandRGBPalette
 
std::string m_FileName
 
FileType m_FileType {TypeNotApplicable}
 
bool m_Initialized
 
ImageIORegion m_IORegion
 
bool m_IsReadAsScalarPlusPalette
 
unsigned int m_NumberOfComponents
 
unsigned int m_NumberOfDimensions {0}
 
std::vector< double > m_Origin
 
IOPixelType m_PixelType {SCALAR}
 
std::vector< double > m_Spacing
 
std::vector< SizeTypem_Strides
 
bool m_UseCompression
 
bool m_UseStreamedReading
 
bool m_UseStreamedWriting
 
- 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 (IOComponentType)
 
static IOComponentType GetComponentTypeFromString (const std::string &typeString)
 
static std::string GetPixelTypeAsString (IOPixelType)
 
static IOPixelType 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 flag)
 
- Static Public Member Functions inherited from itk::LightObject
static void BreakOnError ()
 
static Pointer New ()
 

Member Typedef Documentation

Video-specific type alias

Definition at line 66 of file itkVideoIOBase.h.

Definition at line 62 of file itkVideoIOBase.h.

Definition at line 57 of file itkVideoIOBase.h.

Standard class type aliases.

Definition at line 55 of file itkVideoIOBase.h.

Definition at line 58 of file itkVideoIOBase.h.

Definition at line 56 of file itkVideoIOBase.h.

Frame offset type alias

Definition at line 61 of file itkVideoIOBase.h.

Definition at line 63 of file itkVideoIOBase.h.

Member Enumeration Documentation

Enum used to define weather to read from a file or a camera

Enumerator
ReadFromFile 
ReadFromCamera 

Definition at line 77 of file itkVideoIOBase.h.

Constructor & Destructor Documentation

itk::VideoIOBase::VideoIOBase ( )
protected
itk::VideoIOBase::~VideoIOBase ( )
overrideprotected

Member Function Documentation

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::OpenCVVideoIO, and itk::VXLVideoIO.

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

Close the reader and writer and reset members

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

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

Virtual accessor functions to be implemented in each derived class

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

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

Virtual accessor functions to be implemented in each derived class

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

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

Virtual accessor functions to be implemented in each derived class

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

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

Virtual accessor functions to be implemented in each derived class

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

virtual const char* itk::VideoIOBase::GetNameOfClass ( ) const
virtual

Run-time type information (and related methods).

Reimplemented from itk::ImageIOBase.

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

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

Virtual accessor functions to be implemented in each derived class

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

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

Virtual accessor functions to be implemented in each derived class

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

ReadType itk::VideoIOBase::GetReadType ( )
inline

Get the current read type

Definition at line 86 of file itkVideoIOBase.h.

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.

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::OpenCVVideoIO, and itk::VXLVideoIO.

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

Set to reading from a camera

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

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

Set to reading from file

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

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

Set Writer Parameters

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

Member Data Documentation

FrameOffsetType itk::VideoIOBase::m_CurrentFrame
protected

Definition at line 127 of file itkVideoIOBase.h.

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

Definition at line 125 of file itkVideoIOBase.h.

FrameOffsetType itk::VideoIOBase::m_FrameTotal
protected

Definition at line 126 of file itkVideoIOBase.h.

FrameOffsetType itk::VideoIOBase::m_IFrameInterval
protected

Definition at line 128 of file itkVideoIOBase.h.

FrameOffsetType itk::VideoIOBase::m_LastIFrame
protected

Definition at line 129 of file itkVideoIOBase.h.

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

Definition at line 131 of file itkVideoIOBase.h.

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

Definition at line 130 of file itkVideoIOBase.h.

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

Definition at line 133 of file itkVideoIOBase.h.

ReadType itk::VideoIOBase::m_ReadType {ReadFromFile}
protected

Member Variables

Definition at line 124 of file itkVideoIOBase.h.

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

Definition at line 132 of file itkVideoIOBase.h.


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