Representation of an AVC sequence parameter set access unit. More...

#include <tsAVCSequenceParameterSet.h>

Inheritance diagram for ts::AVCSequenceParameterSet:

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Collaboration diagram for ts::AVCSequenceParameterSet:

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Public Types
using	SuperClass = AbstractAVCAccessUnit
	Reference to the superclass.

Public Member Functions
	AVCSequenceParameterSet (const uint8_t *data=nullptr, size_t size=0)
	Constructor from a binary area.

uint8_t	chroma () const
	Get chroma_format_idc, applying default value (see H.264 7.4.2.1.1).

uint8_t	chromaArrayType () const
	The ChromaArrayType variable (see H.264 7.4.2.1.1).

virtual void	clear () override
	Clear all values.

uint32_t	cropUnitX () const
	The CropUnitX variable (see H.264 7.4.2.1.1).

uint32_t	cropUnitY () const
	The CropUnitY variable (see H.264 7.4.2.1.1).

virtual std::ostream &	display (std::ostream &strm=std::cout, const UString &margin=UString(), int level=Severity::Info) const override
	Display the content of this object to a stream.

bool	extension1 () const
	Check validity of extension fields 1.

uint32_t	frameHeight () const
	Frame height in pixels.

uint32_t	frameWidth () const
	Frame width in pixels.

virtual bool	parse (const uint8_t *, size_t, std::initializer_list< uint32_t >=std::initializer_list< uint32_t >()) override
	Parse a memory area containing binary video data of the expected type.

uint8_t	separateColourPlaneFlag () const
	Get separate_colour_plane_flag, applying default value (see H.264 7.4.2.1.1).

uint32_t	subHeightC () const
	The SubHeightC variable (see H.264 6.2).

uint32_t	subWidthC () const
	The SubWidthC variable (see H.264 6.2).

Public Attributes
uint32_t	bit_depth_chroma_minus8 = 0
	bit_depth_chroma_minus8

uint32_t	bit_depth_luma_minus8 = 0
	bit_depth_luma_minus8

uint8_t	chroma_format_idc = 0
	chroma_format_idc

uint8_t	constraint_set0_flag = 0
	constraint_set0_flag

uint8_t	constraint_set1_flag = 0
	constraint_set1_flag

uint8_t	constraint_set2_flag = 0
	constraint_set2_flag

uint8_t	constraint_set3_flag = 0
	constraint_set3_flag

uint8_t	delta_pic_order_always_zero_flag = 0
	delta_pic_order_always_zero_flag

uint8_t	direct_8x8_inference_flag = 0
	direct_8x8_inference_flag

uint8_t	forbidden_zero_bit = 0
	See ISO/IEC 14496-10 section 7.3.1.

uint32_t	frame_crop_bottom_offset = 0
	frame_crop_bottom_offset

uint32_t	frame_crop_left_offset = 0
	frame_crop_left_offset

uint32_t	frame_crop_right_offset = 0
	frame_crop_right_offset

uint32_t	frame_crop_top_offset = 0
	frame_crop_top_offset

uint8_t	frame_cropping_flag = 0
	frame_cropping_flag

uint8_t	frame_mbs_only_flag = 0
	frame_mbs_only_flag

uint8_t	gaps_in_frame_num_value_allowed_flag = 0
	gaps_in_frame_num_value_allowed_flag

uint8_t	level_idc = 0
	level_idc

uint32_t	log2_max_frame_num_minus4 = 0
	log2_max_frame_num_minus4

uint32_t	log2_max_pic_order_cnt_lsb_minus4 = 0
	log2_max_pic_order_cnt_lsb_minus4

uint8_t	mb_adaptive_frame_field_flag = 0
	mb_adaptive_frame_field_flag

uint8_t	nal_ref_idc = 0
	See ISO/IEC 14496-10 section 7.3.1.

uint8_t	nal_unit_type = 0
	See ISO/IEC 14496-10 section 7.3.1.

uint32_t	num_ref_frames = 0
	num_ref_frames

uint32_t	num_ref_frames_in_pic_order_cnt_cycle = 0
	num_ref_frames_in_pic_order_cnt_cycle

int32_t	offset_for_non_ref_pic = 0
	offset_for_non_ref_pic

std::vector< int32_t >	offset_for_ref_frame {}
	offset_for_ref_frame

int32_t	offset_for_top_to_bottom_field = 0
	offset_for_top_to_bottom_field

uint32_t	pic_height_in_map_units_minus1 = 0
	pic_height_in_map_units_minus1

uint32_t	pic_order_cnt_type = 0
	pic_order_cnt_type

uint32_t	pic_width_in_mbs_minus1 = 0
	pic_width_in_mbs_minus1

uint8_t	profile_idc = 0
	profile_idc

uint8_t	qpprime_y_zero_transform_bypass_flag = 0
	qpprime_y_zero_transform_bypass_flag

size_t	rbsp_trailing_bits_count = 0
	rbsp_trailing_bits_count

bool	rbsp_trailing_bits_valid = false
	rbsp_trailing_bits_valid

uint8_t	reserved_zero_4bits = 0
	reserved_zero_4bits

uint8_t	separate_colour_plane_flag = 0
	separate_colour_plane_flag

uint32_t	seq_parameter_set_id = 0
	seq_parameter_set_id

uint8_t	seq_scaling_matrix_present_flag = 0
	seq_scaling_matrix_present_flag

bool	valid = false
	Valid flag.

AVCVUIParameters	vui {}
	vui

uint8_t	vui_parameters_present_flag = 0
	vui_parameters_present_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.

virtual bool	parseBody (AVCParser &, std::initializer_list< uint32_t >) override
	Parse the body of the access unit up to but not including the rbsp_trailing_bits.

virtual bool	parseHeader (const uint8_t *&, size_t &, std::initializer_list< uint32_t >=std::initializer_list< uint32_t >()) override
	Parse the header of the access unit.

Detailed Description

Representation of an AVC sequence parameter set access unit.

AVC is Advanced Video Coding, ISO 14496-10, ITU H.264.

Constructor & Destructor Documentation

◆ AVCSequenceParameterSet()

ts::AVCSequenceParameterSet::AVCSequenceParameterSet	(	const uint8_t *	data = `nullptr`,
		size_t	size = `0`
	)

Constructor from a binary area.

Parameters

[in]	data	Address of binary data to analyze.
[in]	size	Size in bytes of binary data to analyze.

Member Function Documentation

◆ clear()

virtual void ts::AVCSequenceParameterSet::clear ( )

overridevirtual

Clear all values.

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

Reimplemented from ts::AbstractAVCAccessUnit.

◆ display()

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

overridevirtual

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.

Implements ts::DisplayInterface.

◆ chroma()

uint8_t ts::AVCSequenceParameterSet::chroma ( ) const

Get chroma_format_idc, applying default value (see H.264 7.4.2.1.1).

Returns: The chroma_format_idc, applying default value.

◆ separateColourPlaneFlag()

uint8_t ts::AVCSequenceParameterSet::separateColourPlaneFlag ( ) const

Get separate_colour_plane_flag, applying default value (see H.264 7.4.2.1.1).

Returns: The separate_colour_plane_flag, applying default value.

◆ chromaArrayType()

uint8_t ts::AVCSequenceParameterSet::chromaArrayType ( ) const

The ChromaArrayType variable (see H.264 7.4.2.1.1).

Returns: The ChromaArrayType variable.

◆ subWidthC()

uint32_t ts::AVCSequenceParameterSet::subWidthC ( ) const

The SubWidthC variable (see H.264 6.2).

Returns: The SubWidthC variable (see H.264 6.2).

◆ subHeightC()

uint32_t ts::AVCSequenceParameterSet::subHeightC ( ) const

The SubHeightC variable (see H.264 6.2).

Returns: The SubHeightC variable (see H.264 6.2).

◆ cropUnitX()

uint32_t ts::AVCSequenceParameterSet::cropUnitX ( ) const

The CropUnitX variable (see H.264 7.4.2.1.1).

Returns: The CropUnitX variable.

◆ cropUnitY()

uint32_t ts::AVCSequenceParameterSet::cropUnitY ( ) const

The CropUnitY variable (see H.264 7.4.2.1.1).

Returns: The CropUnitY variable.

◆ frameWidth()

uint32_t ts::AVCSequenceParameterSet::frameWidth ( ) const

Frame width in pixels.

Returns: The frame width in pixels.

◆ frameHeight()

uint32_t ts::AVCSequenceParameterSet::frameHeight ( ) const

Frame height in pixels.

Returns: The frame height in pixels.

◆ extension1()

bool ts::AVCSequenceParameterSet::extension1 ( ) const

Check validity of extension fields 1.

Returns: True if extension fields 1 are valid.

◆ parseBody()

virtual bool ts::AVCSequenceParameterSet::parseBody	(	AVCParser &	parser,
		std::initializer_list< uint32_t >	params
	)

overrideprotectedvirtual

Parse the body of the access unit up to but not including the rbsp_trailing_bits.

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

Parameters

[in,out]	parser	The parser of an AVC-like video stream.
[in]	params	Additional parameters. May be needed by some structures.

Returns: The valid flag.

Implements ts::AbstractVideoAccessUnit.

◆ parseHeader()

virtual bool ts::AbstractAVCAccessUnit::parseHeader	(	const uint8_t *&	addr,
		size_t &	size,
		std::initializer_list< uint32_t >	params = `std::initializer_list< uint32_t >()`
	)

overrideprotectedvirtualinherited

Parse the header of the access unit.

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

Parameters

[in,out]	addr	Address of the binary data to parse. Adjusted after header.
[in,out]	size	Size in bytes of the binary data to parse. Adjusted as remaining size after header.
[in]	params	Additional parameters. May be needed by some structures.

Returns: The valid flag.

Implements ts::AbstractVideoAccessUnit.

◆ parse()

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

overridevirtualinherited

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.

Implements ts::AbstractVideoData.

◆ 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

inlineprotectedinherited

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

inlineprotectedinherited

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.

Member Data Documentation

◆ valid

bool ts::AbstractVideoData::valid = false

inherited

Valid flag.

Other fields are significant only if valid is true.

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

tsAVCSequenceParameterSet.h

Public Types

Public Member Functions

Public Attributes

Protected Member Functions

Detailed Description

Constructor & Destructor Documentation

◆ AVCSequenceParameterSet()

Member Function Documentation

◆ clear()

◆ display()

◆ chroma()

◆ separateColourPlaneFlag()

◆ chromaArrayType()

◆ subWidthC()

◆ subHeightC()

◆ cropUnitX()

◆ cropUnitY()

◆ frameWidth()

◆ frameHeight()

◆ extension1()

◆ parseBody()

◆ parseHeader()

◆ parse()

◆ disp() [1/2]

◆ disp() [2/2]

Member Data Documentation

◆ valid