Basic definition of an MPEG-2 PES packet(Packetized Elementary Stream). More...

Public Member Functions
	QtsPesPacket ()
	Default constructor. More...

	QtsPesPacket (const void *addr, int size, QtsPid pid=QTS_PID_NULL)
	Constructor from full binary content. More...

	QtsPesPacket (const QtlByteBlock &content, QtsPid pid=QTS_PID_NULL)
	Constructor from full binary content. More...

void	clear ()
	Clear packet content, becomes an invalid packet. More...

QtlByteBlock	content () const
	Get a copy of the full binary content of the packet. More...

quint64	getDts () const
	Get the DTS (Decoding Time Stamp) - 33 bits. More...

QtsPacketCounter	getFirstTsPacketIndex () const
	Get the index of first TS packet of the PES packet in the demultiplexed stream. More...

QtsPacketCounter	getLastTsPacketIndex () const
	Get the index of last TS packet of the PES packet in the demultiplexed stream. More...

quint64	getPts () const
	Get the PTS (Presentation Time Stamp) - 33 bits. More...

QtsPid	getSourcePid () const
	Get the PID from which the packet was collected (informational only). More...

QtsPesStreamId	getStreamId () const
	Get the stream identifier of the PES packet. More...

bool	hasDts () const
	Check if the PES packet contains a DTS (Decoding Time Stamp). More...

bool	hasLongHeader () const
	Check if the packet has a long header. More...

bool	hasPts () const
	Check if the PES packet contains a PTS (Presentation Time Stamp). More...

const quint8 *	header () const
	Get the address of the PES header in the packet. More...

int	headerSize () const
	Get the size of the PES header in the packet. More...

bool	isAc3 () const
	Check if the PES packet contains AC-3 or Enhanced-AC-3 audio. More...

bool	isAvc () const
	Check if the PES packet contains AVC / H.264. More...

bool	isMpeg2Video () const
	Check if the PES packet contains MPEG-2 video (also applies to MPEG-1 video). More...

bool	isValid () const
	Check if a packet has valid content. More...

bool	operator!= (const QtsPesPacket &other) const
	Difference operator. More...

bool	operator== (const QtsPesPacket &other) const
	Comparison operator. More...

const quint8 *	payload () const
	Get the address of the PES payload in the packet. More...

int	payloadSize () const
	Get the size of the PES payload in the packet. More...

void	reload (const void *addr, int size, QtsPid pid=QTS_PID_NULL)
	Reload full binary content. More...

void	reload (const QtlByteBlock &content, QtsPid pid=QTS_PID_NULL)
	Reload full binary content. More...

void	setDts (const quint64 &dts)
	Replace the DTS (Decoding Time Stamp) value - 33 bits. More...

void	setFirstTsPacketIndex (QtsPacketCounter i)
	Set the index of first TS packet of the PES packet in the demultiplexed stream. More...

void	setLastTsPacketIndex (QtsPacketCounter i)
	Set the index of last TS packet of the PES packet in the demultiplexed stream. More...

void	setPts (const quint64 &pts)
	Replace the PTS (Presentation Time Stamp) value - 33 bits. More...

void	setSourcePid (QtsPid pid)
	Set the PID from which the packet was collected (informational only). More...

void	setStreamId (QtsPesStreamId sid)
	Set the stream identifier of the PES packet. More...

int	size () const
	Get the size in bytes of the packet. More...

Private Member Functions
void	initialize (QtsPid pid)
	Helper for constructor. More...

void	initialize (const QtlByteBlock &bb, QtsPid pid)
	Helper for constructor. More...

Private Attributes
QtlByteBlock	_data
	Full binary content of the packet. More...

QtsPacketCounter	_firstPkt
	Index of first packet in stream. More...

int	_headerSize
	PES header size in bytes. More...

bool	_isValid
	Content of _data is a valid packet. More...

QtsPacketCounter	_lastPkt
	Index of last packet in stream. More...

QtsPid	_sourcePid
	Source PID (informational). More...

Detailed Description

Basic definition of an MPEG-2 PES packet(Packetized Elementary Stream).

Constructor & Destructor Documentation

◆ QtsPesPacket() [1/3]

QtsPesPacket::QtsPesPacket ( )

inline

Default constructor.

The PES packet is initially marked invalid.

◆ QtsPesPacket() [2/3]

QtsPesPacket::QtsPesPacket	(	const void *	addr,
		int	size,
		QtsPid	pid = `QTS_PID_NULL`
	)

inline

Constructor from full binary content.

The content is copied into the packet only if valid.

Parameters

[in]	addr	Address of binary content.
[in]	size	Size of binary content.
[in]	pid	PID from which the PES packet was extracted (informational only).

◆ QtsPesPacket() [3/3]

QtsPesPacket::QtsPesPacket	(	const QtlByteBlock &	content,
		QtsPid	pid = `QTS_PID_NULL`
	)

inline

Constructor from full binary content.

The content is copied into the packet only if valid.

Parameters

[in]	content	Binary content.
[in]	pid	PID from which the PES packet was extracted (informational only).

Member Function Documentation

◆ reload() [1/2]

void QtsPesPacket::reload	(	const void *	addr,
		int	size,
		QtsPid	pid = `QTS_PID_NULL`
	)

inline

Reload full binary content.

The content is copied into the packet only if valid.

Parameters

[in]	addr	Address of binary content.
[in]	size	Size of binary content.
[in]	pid	PID from which the PES packet was extracted (informational only).

◆ reload() [2/2]

void QtsPesPacket::reload	(	const QtlByteBlock &	content,
		QtsPid	pid = `QTS_PID_NULL`
	)

inline

Reload full binary content.

The content is copied into the packet only if valid.

Parameters

[in]	content	Binary content.
[in]	pid	PID from which the PES packet was extracted (informational only).

◆ clear()

void QtsPesPacket::clear ( )

Clear packet content, becomes an invalid packet.

◆ isValid()

bool QtsPesPacket::isValid ( ) const

inline

Check if a packet has valid content.

Returns: True if the packet content is valid, false otherwise.

◆ operator==()

bool QtsPesPacket::operator== ( const QtsPesPacket & other ) const

Comparison operator.

The source PID are ignored, only the packet contents are compared. Note: Invalid packets are never identical

Parameters

[in] other Other instance to compare.

Returns: True if packets are identical, false otherwise.

◆ operator!=()

bool QtsPesPacket::operator!= ( const QtsPesPacket & other ) const

inline

Difference operator.

The source PID are ignored, only the packet contents are compared. Note: Invalid packets are never identical

Parameters

[in] other Other instance to compare.

Returns: True if packets are identical, false otherwise.

◆ getSourcePid()

QtsPid QtsPesPacket::getSourcePid ( ) const

inline

Get the PID from which the packet was collected (informational only).

Returns: The PID from which the packet was collected.

◆ setSourcePid()

void QtsPesPacket::setSourcePid ( QtsPid pid )

inline

Set the PID from which the packet was collected (informational only).

Parameters

[in] pid The PID from which the packet was collected.

◆ getFirstTsPacketIndex()

QtsPacketCounter QtsPesPacket::getFirstTsPacketIndex ( ) const

inline

Get the index of first TS packet of the PES packet in the demultiplexed stream.

Returns: The index of first TS packet of the PES packet.

◆ getLastTsPacketIndex()

QtsPacketCounter QtsPesPacket::getLastTsPacketIndex ( ) const

inline

Get the index of last TS packet of the PES packet in the demultiplexed stream.

Returns: The index of last TS packet of the PES packet.

◆ setFirstTsPacketIndex()

void QtsPesPacket::setFirstTsPacketIndex ( QtsPacketCounter i )

inline

Set the index of first TS packet of the PES packet in the demultiplexed stream.

Parameters

[in] i The index of first TS packet of the PES packet.

◆ setLastTsPacketIndex()

void QtsPesPacket::setLastTsPacketIndex ( QtsPacketCounter i )

inline

Set the index of last TS packet of the PES packet in the demultiplexed stream.

Parameters

[in] i The index of last TS packet of the PES packet.

◆ getStreamId()

QtsPesStreamId QtsPesPacket::getStreamId ( ) const

inline

Get the stream identifier of the PES packet.

Returns: The stream identifier of the PES packet.

◆ setStreamId()

void QtsPesPacket::setStreamId ( QtsPesStreamId sid )

inline

Set the stream identifier of the PES packet.

Parameters

[in] sid The stream identifier of the PES packet.

◆ hasLongHeader()

bool QtsPesPacket::hasLongHeader ( ) const

inline

Check if the packet has a long header.

Returns: True if the packet has a long header.

◆ content()

QtlByteBlock QtsPesPacket::content ( ) const

inline

Get a copy of the full binary content of the packet.

Returns: The full binary content of the packet.

◆ size()

int QtsPesPacket::size ( ) const

inline

Get the size in bytes of the packet.

Returns: The size in bytes of the packet.

◆ header()

const quint8* QtsPesPacket::header ( ) const

inline

Get the address of the PES header in the packet.

Do not modify the content.

Returns: Address of the PES header in the packet. May be invalidated when the packet is reloaded. Zero if the packet is invalid.

◆ headerSize()

int QtsPesPacket::headerSize ( ) const

inline

Get the size of the PES header in the packet.

Returns: Size of the PES header in the packet.

◆ payload()

const quint8* QtsPesPacket::payload ( ) const

inline

Get the address of the PES payload in the packet.

Do not modify the content.

Returns: Address of the PES payload in the packet. May be invalidated when the packet is reloaded. Zero if the packet is invalid.

◆ payloadSize()

int QtsPesPacket::payloadSize ( ) const

inline

Get the size of the PES payload in the packet.

Returns: Size of the PES payload in the packet.

◆ isMpeg2Video()

bool QtsPesPacket::isMpeg2Video ( ) const

Check if the PES packet contains MPEG-2 video (also applies to MPEG-1 video).

Returns: True if the PES packet contains MPEG-2 video.

◆ isAvc()

bool QtsPesPacket::isAvc ( ) const

Check if the PES packet contains AVC / H.264.

Returns: True if the PES packet contains AVC video.

◆ isAc3()

bool QtsPesPacket::isAc3 ( ) const

Check if the PES packet contains AC-3 or Enhanced-AC-3 audio.

Warning: As specified in ETSI TS 102 366, an AC-3 audio frame always starts with 0x0B77. This is what we check here. However, it is still possible that other encodings may start from time to time with 0x0B77. Thus, it is safe to say that a PID in which all PES packets start with 0x0B77(ie isAc3() returns true) contains AC-3. However, if only a few PES packets start with 0x0B77, it is safe to say that it should be something else.

Returns: True if the PES packet contains AC-3 or Enhanced-AC-3 audio.

◆ hasPts()

bool QtsPesPacket::hasPts ( ) const

Check if the PES packet contains a PTS (Presentation Time Stamp).

Returns: True if the PES packet contains a PTS.

◆ getPts()

quint64 QtsPesPacket::getPts ( ) const

Get the PTS (Presentation Time Stamp) - 33 bits.

Returns: PTS value or zero if not found.

◆ setPts()

void QtsPesPacket::setPts ( const quint64 & pts )

Replace the PTS (Presentation Time Stamp) value - 33 bits.

Do nothing if the packet has not PTS.

Parameters

pts	PTS value to replace.

◆ hasDts()

bool QtsPesPacket::hasDts ( ) const

Check if the PES packet contains a DTS (Decoding Time Stamp).

Returns: True if the PES packet contains a DTS.

◆ getDts()

quint64 QtsPesPacket::getDts ( ) const

Get the DTS (Decoding Time Stamp) - 33 bits.

Returns: DTS value or zero if not found.

◆ setDts()

void QtsPesPacket::setDts ( const quint64 & dts )

Replace the DTS (Decoding Time Stamp) value - 33 bits.

Do nothing if the packet has not DTS.

Parameters

dts	DTS value to replace.

◆ initialize() [1/2]

void QtsPesPacket::initialize ( QtsPid pid )

private

Helper for constructor.

Parameters

[in] pid Source PID.

◆ initialize() [2/2]

void QtsPesPacket::initialize	(	const QtlByteBlock &	bb,
		QtsPid	pid
	)

private

Helper for constructor.

Parameters

[in]	bb	PES packet binary content.
[in]	pid	Source PID.

Member Data Documentation

◆ _isValid

bool QtsPesPacket::_isValid

private

Content of _data is a valid packet.

◆ _headerSize

int QtsPesPacket::_headerSize

private

PES header size in bytes.

◆ _sourcePid

QtsPid QtsPesPacket::_sourcePid

private

Source PID (informational).

◆ _firstPkt

QtsPacketCounter QtsPesPacket::_firstPkt

private

Index of first packet in stream.

◆ _lastPkt

QtsPacketCounter QtsPesPacket::_lastPkt

private

Index of last packet in stream.

◆ _data

QtlByteBlock QtsPesPacket::_data

private

Full binary content of the packet.

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

Public Member Functions

Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

◆ QtsPesPacket() [1/3]

◆ QtsPesPacket() [2/3]

◆ QtsPesPacket() [3/3]

Member Function Documentation

◆ reload() [1/2]

◆ reload() [2/2]

◆ clear()

◆ isValid()

◆ operator==()

◆ operator!=()

◆ getSourcePid()

◆ setSourcePid()

◆ getFirstTsPacketIndex()

◆ getLastTsPacketIndex()

◆ setFirstTsPacketIndex()

◆ setLastTsPacketIndex()

◆ getStreamId()

◆ setStreamId()

◆ hasLongHeader()

◆ content()

◆ size()

◆ header()

◆ headerSize()

◆ payload()

◆ payloadSize()

◆ isMpeg2Video()

◆ isAvc()

◆ isAc3()

◆ hasPts()

◆ getPts()

◆ setPts()

◆ hasDts()

◆ getDts()

◆ setDts()

◆ initialize() [1/2]

◆ initialize() [2/2]

Member Data Documentation

◆ _isValid

◆ _headerSize

◆ _sourcePid

◆ _firstPkt

◆ _lastPkt

◆ _data