ts::AbstractVideoData Class Reference

Abstract base class for AVC data, either access units or structures. More...

#include <tsAbstractVideoData.h>

Inheritance diagram for ts::AbstractVideoData:

Collaboration diagram for ts::AbstractVideoData:

Public Member Functions
	AbstractVideoData ()=default
	Constructor.
virtual void	clear ()
	Clear all values.
virtual std::ostream &	display (std::ostream &stream=std::cout, const UString &margin=UString(), int level=Severity::Info) const =0
	Display the content of this object to a stream.
virtual bool	parse (const uint8_t *addr, size_t size, std::initializer_list< uint32_t > params=std::initializer_list< uint32_t >())=0
	Parse a memory area containing binary video data of the expected type.

Public Attributes
bool	valid = false
	Valid flag.

Protected Member Functions
template<typename INT > requires std::integral<INT>
void	disp (std::ostream &out, const UString &margin, const UChar *name, INT n) const
	Display helper for subclasses.
template<typename INT > requires std::integral<INT>
void	disp (std::ostream &out, const UString &margin, const UChar *name, std::vector< INT > n) const
	Display helper for subclasses.

Detailed Description

Abstract base class for AVC data, either access units or structures.

Typically used in:

• AVC, Advanced Video Coding, ISO 14496-10, ITU-T Rec. H.264.
• HEVC, High Efficiency Video Coding, ITU-T Rec. H.265.
• VVC, Versatile Video Coding, ITU-T Rec. H.266.

There is no strict encapsulation of data. Each subclass exposes public fields. This base class declares a common interface to parse, display and validate the data.

Member Function Documentation

clear()

virtual void ts::AbstractVideoData::clear ( )

virtual

Clear all values.

Should be reimplemented by subclasses. The data are marked invalid.

Reimplemented in ts::AbstractAVCAccessUnit, ts::AbstractHEVCAccessUnit, ts::AbstractVideoAccessUnit, ts::AbstractVVCAccessUnit, ts::AVCAccessUnitDelimiter, ts::AVCHRDParameters, ts::AVCSequenceParameterSet, ts::AVCVUIParameters, ts::HEVCAccessUnitDelimiter, ts::HEVCHRDParameters, ts::HEVCProfileTierLevel, ts::HEVCSequenceParameterSet, ts::HEVCShortTermReferencePictureSetList, ts::HEVCVUIParameters, and ts::VVCAccessUnitDelimiter.

parse()

virtual bool ts::AbstractVideoData::parse ( const uint8_t *  addr, size_t  size, std::initializer_list< uint32_t >  params = std::initializer_list< uint32_t >()  )

pure virtual

Parse a memory area containing binary video data of the expected type.

Must be reimplemented by subclasses. The data are marked as valid or invalid.

Parameters

[in]	addr	Address of the binary data to parse.
[in]	size	Size in bytes of the binary data to parse.
[in]	params	Additional parameters. May be needed by some structures.

Returns

The valid flag.

Implemented in ts::AbstractVideoAccessUnit, ts::AbstractVideoStructure, ts::HEVCHRDParameters, ts::HEVCProfileTierLevel, ts::HEVCScalingListData, ts::HEVCShortTermReferencePictureSetList, ts::HEVCVUIParameters, ts::AVCHRDParameters, and ts::AVCVUIParameters.

disp() [1/2]

template<typename INT >
requires std::integral<INT>

void ts::AbstractVideoData::disp ( std::ostream &  out, const UString &  margin, const UChar *  name, INT  n  ) const

inlineprotected

Display helper for subclasses.

Display an integer value.

Template Parameters

INT	An integer type.

Parameters

[in,out]	out	The stream where to print the content.
[in]	margin	The prefix string on each line.
[in]	name	A name to display for the value.
[in]	n	The integer value to display.

disp() [2/2]

template<typename INT >
requires std::integral<INT>

void ts::AbstractVideoData::disp ( std::ostream &  out, const UString &  margin, const UChar *  name, std::vector< INT >  n  ) const

inlineprotected

Display helper for subclasses.

Display a vector of integer value.

Template Parameters

INT	An integer type.

Parameters

[in,out]	out	The stream where to print the content.
[in]	margin	The prefix string on each line.
[in]	name	A name to display for the value.
[in]	n	The integer values to display.

display()

virtual std::ostream & ts::DisplayInterface::display ( std::ostream &  stream = std::cout, const UString &  margin = UString(), int  level = Severity::Info  ) const

pure virtualinherited

Display the content of this object to a stream.

Parameters

[in,out]	stream	The stream where to print the content. Standard output by default.
[in]	margin	The prefix string on each line, empty by default.
[in]	level	Severity level (for instance, Severity::Info or Severity::Debug may display more information).

Returns

A reference to stream.

Implemented in ts::HEVCHRDParameters, ts::HEVCProfileTierLevel, ts::HEVCScalingListData, ts::HEVCShortTermReferencePictureSetList, ts::ModulationArgs, ts::SignalState, ts::AVCHRDParameters, ts::HEVCAccessUnitDelimiter, ts::HEVCVUIParameters, ts::AVCAccessUnitDelimiter, ts::AVCSequenceParameterSet, ts::AVCVUIParameters, ts::HEVCSequenceParameterSet, and ts::VVCAccessUnitDelimiter.

Member Data Documentation

valid

bool ts::AbstractVideoData::valid = false

Valid flag.

Other fields are significant only if valid is true.

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

• tsAbstractVideoData.h