QtlMovieTsDemux Class Reference

Abstract base class to read an MPEG-TS file and demux its content. More...

Inheritance diagram for QtlMovieTsDemux:

Public Member Functions
	QtlMovieTsDemux (const QString &fileName, const QtlMovieSettings *settings, QtlLogger *log, QObject *parent=0)
	Constructor. More...
virtual void	abort () Q_DECL_OVERRIDE
	Abort analysis. More...
bool	isM2tsFile () const
	Check if the input file has M2TS format. More...
virtual bool	start () Q_DECL_OVERRIDE
	Start the analysis. More...
Public Member Functions inherited from QtlMovieAction
	QtlMovieAction (const QtlMovieSettings *settings, QtlLogger *log, QObject *parent=0)
	Constructor. More...
virtual	~QtlMovieAction ()
	Virtual destructor. More...
virtual void	debug (const QString &line, const QColor &color=QColor()) Q_DECL_OVERRIDE
	Log a line of debug text. More...
QString	description () const
	Get the description of the action. More...
int	elapsedSeconds () const
	Get the number of seconds since the action started. More...
bool	isCompleted () const
	Check if the action is completed. More...
bool	isSilent () const
	Check if unimportant messages are skipped. More...
bool	isStarted () const
	Check if the action was started (and possibly completed in the meantime). More...
virtual void	line (const QString &line, const QColor &color=QColor()) Q_DECL_OVERRIDE
	Log a line of text. More...
void	setDescription (const QString &description)
	Set the description of the action. More...
void	setSilent (bool silent)
	Set if unimportant messages are skipped. More...
const QtlMovieSettings *	settings () const
	Get the application settings. More...
virtual void	text (const QString &text) Q_DECL_OVERRIDE
	Log text. More...

Protected Member Functions
virtual QtsDemux *	demux ()=0
	Get the demux. More...
virtual void	emitCompleted (bool success, const QString &message=QString()) Q_DECL_OVERRIDE
	Emit the completed() signal. More...
virtual void	timerEvent (QTimerEvent *event) Q_DECL_OVERRIDE
	Event handler to handle timer. More...
Protected Member Functions inherited from QtlMovieAction
virtual void	emitProgress (int current, int maximum, int remainingSeconds=-1)
	Emit the progress() signal. More...

Private Member Functions
	QtlMovieTsDemux () Q_DECL_EQ_DELETE

Private Attributes
QtsTsFile	_file
	TS file. More...
bool	_isM2ts
	File has M2TS format. More...
int	_nextReport
	Next packet index to indicate progress report. More...
int	_packetInterval
	Min number of packets between two progress reports. More...
int	_timerId
	Repetitive timer. More...
int	_totalPackets
	File size in packets. More...

Additional Inherited Members
Signals inherited from QtlMovieAction
void	completed (bool success)
	Emitted when the action completes. More...
void	progress (const QString &description, int current, int maximum, int elapsedSeconds, int remainingSeconds)
	Emitted when some progress in the reporting is available. More...
void	started ()
	Emitted when the action starts. More...

Detailed Description

Abstract base class to read an MPEG-TS file and demux its content.

Reading a TS file is not a blocking operation. When start() is invoked, the file is not synchronously read. The Qt event loop invokes the appropriate slots when data is available from the file. The completion is notified using the signal completed(), inherited from QtlMovieAction.

Constructor & Destructor Documentation

QtlMovieTsDemux() [1/2]

QtlMovieTsDemux::QtlMovieTsDemux	(	const QString &	fileName,
		const QtlMovieSettings *	settings,
		QtlLogger *	log,
		QObject *	parent = 0
	)

Constructor.

Parameters

[in]	fileName	MPEG-TS file name.
[in]	settings	Application settings.
[in]	log	Where to log errors.
[in]	parent	Optional parent object.

QtlMovieTsDemux() [2/2]

QtlMovieTsDemux::QtlMovieTsDemux ( )

private

Member Function Documentation

start()

bool QtlMovieTsDemux::start ( )

virtual

Start the analysis.

Reimplemented from QtlMovieAction.

Returns

False if already started. True otherwise.

Reimplemented from QtlMovieAction.

Reimplemented in QtlMovieTeletextExtract.

abort()

void QtlMovieTsDemux::abort ( )

virtual

Abort analysis.

Reimplemented from QtlMovieAction. If the analysis is in progress(), the signal completed() will be emitted.

Reimplemented from QtlMovieAction.

isM2tsFile()

bool QtlMovieTsDemux::isM2tsFile ( ) const

inline

Check if the input file has M2TS format.

This information is available after reading at least one packet from the file.

Returns

True if the input file has M2TS format.

emitCompleted()

void QtlMovieTsDemux::emitCompleted ( bool  success, const QString &  message = QString()  )

protectedvirtual

Emit the completed() signal.

Reimplemented from QtlMovieAction.

Parameters

[in]	success	True when the action completed successfully, false otherwise.
[in]	message	Optional error message to log.

Reimplemented from QtlMovieAction.

Reimplemented in QtlMovieTeletextExtract.

demux()

virtual QtsDemux* QtlMovieTsDemux::demux ( )

protectedpure virtual

Get the demux.

Must be implemented by subclasses.

Returns

The current demux. Cannot be null.

Implemented in QtlMovieTeletextExtract, and QtlMovieTeletextSearch.

timerEvent()

void QtlMovieTsDemux::timerEvent ( QTimerEvent *  event )

protectedvirtual

Event handler to handle timer.

Parameters

event

Notified event.

Member Data Documentation

_file

QtsTsFile QtlMovieTsDemux::_file

private

TS file.

_isM2ts

bool QtlMovieTsDemux::_isM2ts

private

File has M2TS format.

_timerId

int QtlMovieTsDemux::_timerId

private

Repetitive timer.

_totalPackets

int QtlMovieTsDemux::_totalPackets

private

File size in packets.

_packetInterval

int QtlMovieTsDemux::_packetInterval

private

Min number of packets between two progress reports.

_nextReport

int QtlMovieTsDemux::_nextReport

private

Next packet index to indicate progress report.

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

• QtlMovieTsDemux.h
• QtlMovieTsDemux.cpp