Phonon::AbstractMediaStream2 Class Reference

#include <phonon/AbstractMediaStream2>

Inheritance diagram for Phonon::AbstractMediaStream2:

Protected Member Functions
	AbstractMediaStream2 (AbstractMediaStream2Private &dd, QObject *parent)
	AbstractMediaStream2 (QObject *parent=0)
bool	event (QEvent *e)
virtual void	needData (quint32 size)=0
void	resetDone ()
void	seekStreamDone ()
Protected Member Functions inherited from Phonon::AbstractMediaStream
	AbstractMediaStream (AbstractMediaStreamPrivate &dd, QObject *parent)
	AbstractMediaStream (QObject *parent=nullptr)
void	endOfData ()
virtual Q_INVOKABLE void	enoughData ()
void	error (Phonon::ErrorType errorType, const QString &errorString)
virtual Q_INVOKABLE void	reset ()=0
virtual Q_INVOKABLE void	seekStream (qint64 offset)
void	setStreamSeekable (bool)
void	setStreamSize (qint64)
bool	streamSeekable () const
qint64	streamSize () const
void	writeData (const QByteArray &data)
Protected Member Functions inherited from QObject
virtual void	childEvent (QChildEvent *event)
virtual void	connectNotify (const QMetaMethod &signal)
virtual void	customEvent (QEvent *event)
virtual void	disconnectNotify (const QMetaMethod &signal)
bool	isSignalConnected (const QMetaMethod &signal) const const
int	receivers (const char *signal) const const
QObject *	sender () const const
int	senderSignalIndex () const const
virtual void	timerEvent (QTimerEvent *event)

Additional Inherited Members
Public Types inherited from QObject
typedef	QObjectList
Properties inherited from QObject
	objectName
Public Member Functions inherited from Phonon::AbstractMediaStream
Public Member Functions inherited from QObject
	QObject (QObject *parent)
QBindable< QString >	bindableObjectName ()
bool	blockSignals (bool block)
const QObjectList &	children () const const
QMetaObject::Connection	connect (const QObject *sender, const char *signal, const char *method, Qt::ConnectionType type) const const
void	deleteLater ()
void	destroyed (QObject *obj)
bool	disconnect (const char *signal, const QObject *receiver, const char *method) const const
bool	disconnect (const QObject *receiver, const char *method) const const
void	dumpObjectInfo () const const
void	dumpObjectTree () const const
QList< QByteArray >	dynamicPropertyNames () const const
virtual bool	eventFilter (QObject *watched, QEvent *event)
T	findChild (const QString &name, Qt::FindChildOptions options) const const
QList< T >	findChildren (const QRegularExpression &re, Qt::FindChildOptions options) const const
QList< T >	findChildren (const QString &name, Qt::FindChildOptions options) const const
QList< T >	findChildren (Qt::FindChildOptions options) const const
bool	inherits (const char *className) const const
void	installEventFilter (QObject *filterObj)
bool	isQuickItemType () const const
bool	isWidgetType () const const
bool	isWindowType () const const
void	killTimer (int id)
virtual const QMetaObject *	metaObject () const const
void	moveToThread (QThread *targetThread)
QString	objectName () const const
void	objectNameChanged (const QString &objectName)
QObject *	parent () const const
QVariant	property (const char *name) const const
	Q_CLASSINFO (Name, Value)
	Q_EMIT Q_EMIT
	Q_ENUM (...)
	Q_ENUM_NS (...)
	Q_ENUMS (...)
	Q_FLAG (...)
	Q_FLAG_NS (...)
	Q_FLAGS (...)
	Q_GADGET Q_GADGET
	Q_GADGET_EXPORT (EXPORT_MACRO)
	Q_INTERFACES (...)
	Q_INVOKABLE Q_INVOKABLE
	Q_MOC_INCLUDE Q_MOC_INCLUDE
	Q_NAMESPACE Q_NAMESPACE
	Q_NAMESPACE_EXPORT (EXPORT_MACRO)
	Q_OBJECT Q_OBJECT
	Q_PROPERTY (...)
	Q_REVISION Q_REVISION
	Q_SET_OBJECT_NAME (Object)
	Q_SIGNAL Q_SIGNAL
	Q_SIGNALS Q_SIGNALS
	Q_SLOT Q_SLOT
	Q_SLOTS Q_SLOTS
T	qobject_cast (const QObject *object)
T	qobject_cast (QObject *object)
	QT_NO_NARROWING_CONVERSIONS_IN_CONNECT QT_NO_NARROWING_CONVERSIONS_IN_CONNECT
void	removeEventFilter (QObject *obj)
void	setObjectName (const QString &name)
void	setObjectName (QAnyStringView name)
void	setParent (QObject *parent)
bool	setProperty (const char *name, const QVariant &value)
bool	setProperty (const char *name, QVariant &&value)
bool	signalsBlocked () const const
int	startTimer (int interval, Qt::TimerType timerType)
int	startTimer (std::chrono::milliseconds interval, Qt::TimerType timerType)
QThread *	thread () const const
Static Public Member Functions inherited from QObject
QMetaObject::Connection	connect (const QObject *sender, const char *signal, const QObject *receiver, const char *method, Qt::ConnectionType type)
QMetaObject::Connection	connect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &method, Qt::ConnectionType type)
QMetaObject::Connection	connect (const QObject *sender, PointerToMemberFunction signal, const QObject *context, Functor functor, Qt::ConnectionType type)
QMetaObject::Connection	connect (const QObject *sender, PointerToMemberFunction signal, const QObject *receiver, PointerToMemberFunction method, Qt::ConnectionType type)
QMetaObject::Connection	connect (const QObject *sender, PointerToMemberFunction signal, Functor functor)
bool	disconnect (const QMetaObject::Connection &connection)
bool	disconnect (const QObject *sender, const char *signal, const QObject *receiver, const char *method)
bool	disconnect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &method)
bool	disconnect (const QObject *sender, PointerToMemberFunction signal, const QObject *receiver, PointerToMemberFunction method)
QString	tr (const char *sourceText, const char *disambiguation, int n)
Protected Attributes inherited from Phonon::AbstractMediaStream
QScopedPointer< AbstractMediaStreamPrivate >	d_ptr

Detailed Description

Base class for custom media data streams.

Implement this class to provide a custom data stream to the backend. The class supports both, the push and the pull model.

Push:

PushStream::PushStream(QObject *parent)
  : AbstractMediaStream2(parent), m_timer(new QTimer(this))
{
  setStreamSize(getMediaStreamSize());
 
  connect(m_timer, SIGNAL(timeout()), SLOT(moreData()));
  m_timer->setInterval(0);
}
 
void PushStream::moreData()
{
  const QByteArray data = getMediaData();
  if (data.isEmpty()) {
    endOfData();
  } else {
    writeData(data);
  }
}
 
void PushStream::needData()
{
  m_timer->start();
  moreData();
}
 
void PushStream::enoughData()
{
  m_timer->stop();
}

Pull:

PullStream::PullStream(QObject *parent)
  : AbstractMediaStream2(parent)
{
  setStreamSize(getMediaStreamSize());
}
 
void PullStream::needData()
{
  const QByteArray data = getMediaData();
  if (data.isEmpty()) {
    endOfData();
  } else {
    writeData(data);
  }
}

Author

Matthias Kretz kretz.nosp@m.@kde.nosp@m..org

Definition at line 97 of file abstractmediastream2.h.

Constructor & Destructor Documentation

AbstractMediaStream2() [1/2]

Phonon::AbstractMediaStream2::AbstractMediaStream2 ( QObject * parent = 0 )

explicitprotected

Constructs an AbstractMediaStream2 object with a parent.

Definition at line 108 of file abstractmediastream2.cpp.

AbstractMediaStream2() [2/2]

Phonon::AbstractMediaStream2::AbstractMediaStream2 ( AbstractMediaStream2Private & dd, QObject * parent )

protected

Definition at line 113 of file abstractmediastream2.cpp.

Member Function Documentation

event()

bool Phonon::AbstractMediaStream2::event ( QEvent * e )

protectedvirtual

Reimplemented from QObject.

Definition at line 35 of file abstractmediastream2.cpp.

needData()

virtual void Phonon::AbstractMediaStream2::needData ( quint32 size )

protectedpure virtual

Reimplement this function to be notified when the backend needs data.

When this function is called you should try to call writeData or endOfData before returning.

Parameters

size	The number of bytes that are needed. If possible, pass size bytes of media data in the next writeData call.

resetDone()

void Phonon::AbstractMediaStream2::resetDone ( )

protected

Definition at line 140 of file abstractmediastream2.cpp.

seekStreamDone()

void Phonon::AbstractMediaStream2::seekStreamDone ( )

protected

Definition at line 155 of file abstractmediastream2.cpp.

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

• abstractmediastream2.h
• abstractmediastream2.cpp