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Internal/Contributor docs for the Qt SDK. <b>Note:</b> These are NOT official API docs; those are found <a href='https://doc.qt.io/'>here</a>.
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QFFmpeg::PlaybackEngine Class Reference

#include <qffmpegplaybackengine_p.h>

+ Inheritance diagram for QFFmpeg::PlaybackEngine:
+ Collaboration diagram for QFFmpeg::PlaybackEngine:

Classes

struct  ObjectDeleter
 

Signals

void endOfStream ()
 
void errorOccured (int, const QString &)
 
void loopChanged ()
 
void buffered ()
 
- Signals inherited from QObject
void destroyed (QObject *=nullptr)
 This signal is emitted immediately before the object obj is destroyed, after any instances of QPointer have been notified, and cannot be blocked.
 
void objectNameChanged (const QString &objectName, QPrivateSignal)
 This signal is emitted after the object's name has been changed.
 

Public Member Functions

 PlaybackEngine ()
 
 ~PlaybackEngine () override
 
void setMedia (MediaDataHolder media)
 
void setVideoSink (QVideoSink *sink)
 
void setAudioSink (QAudioOutput *output)
 
void setAudioSink (QPlatformAudioOutput *output)
 
void setState (QMediaPlayer::PlaybackState state)
 
void play ()
 
void pause ()
 
void stop ()
 
void seek (qint64 pos)
 
void setLoops (int loopsCount)
 
void setPlaybackRate (float rate)
 
float playbackRate () const
 
void setActiveTrack (QPlatformMediaPlayer::TrackType type, int streamNumber)
 
qint64 currentPosition (bool topPos=true) const
 
qint64 duration () const
 
bool isSeekable () const
 
const QList< MediaDataHolder::StreamInfo > & streamInfo (QPlatformMediaPlayer::TrackType trackType) const
 
const QMediaMetaDatametaData () const
 
int activeTrack (QPlatformMediaPlayer::TrackType type) const
 
- Public Member Functions inherited from QObject
Q_INVOKABLE QObject (QObject *parent=nullptr)
 Constructs an object with parent object parent.
 
virtual ~QObject ()
 Destroys the object, deleting all its child objects.
 
virtual bool event (QEvent *event)
 This virtual function receives events to an object and should return true if the event e was recognized and processed.
 
virtual bool eventFilter (QObject *watched, QEvent *event)
 Filters events if this object has been installed as an event filter for the watched object.
 
QString objectName () const
 
Q_WEAK_OVERLOAD void setObjectName (const QString &name)
 Sets the object's name to name.
 
void setObjectName (QAnyStringView name)
 This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
 
QBindable< QStringbindableObjectName ()
 
bool isWidgetType () const
 Returns true if the object is a widget; otherwise returns false.
 
bool isWindowType () const
 Returns true if the object is a window; otherwise returns false.
 
bool isQuickItemType () const
 Returns true if the object is a QQuickItem; otherwise returns false.
 
bool signalsBlocked () const noexcept
 Returns true if signals are blocked; otherwise returns false.
 
bool blockSignals (bool b) noexcept
 If block is true, signals emitted by this object are blocked (i.e., emitting a signal will not invoke anything connected to it).
 
QThreadthread () const
 Returns the thread in which the object lives.
 
bool moveToThread (QThread *thread QT6_DECL_NEW_OVERLOAD_TAIL)
 Changes the thread affinity for this object and its children and returns true on success.
 
int startTimer (int interval, Qt::TimerType timerType=Qt::CoarseTimer)
 This is an overloaded function that will start a timer of type timerType and a timeout of interval milliseconds.
 
int startTimer (std::chrono::nanoseconds time, Qt::TimerType timerType=Qt::CoarseTimer)
 
void killTimer (int id)
 Kills the timer with timer identifier, id.
 
void killTimer (Qt::TimerId id)
 
template<typename T >
findChild (QAnyStringView aName, Qt::FindChildOptions options=Qt::FindChildrenRecursively) const
 Returns the child of this object that can be cast into type T and that is called name, or \nullptr if there is no such object.
 
template<typename T >
QList< T > findChildren (QAnyStringView aName, Qt::FindChildOptions options=Qt::FindChildrenRecursively) const
 Returns all children of this object with the given name that can be cast to type T, or an empty list if there are no such objects.
 
template<typename T >
findChild (Qt::FindChildOptions options=Qt::FindChildrenRecursively) const
 This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
 
template<typename T >
QList< T > findChildren (Qt::FindChildOptions options=Qt::FindChildrenRecursively) const
 This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
 
const QObjectListchildren () const
 Returns a list of child objects.
 
void setParent (QObject *parent)
 Makes the object a child of parent.
 
void installEventFilter (QObject *filterObj)
 Installs an event filter filterObj on this object.
 
void removeEventFilter (QObject *obj)
 Removes an event filter object obj from this object.
 
QMetaObject::Connection connect (const QObject *sender, const char *signal, const char *member, Qt::ConnectionType type=Qt::AutoConnection) const
 
bool disconnect (const char *signal=nullptr, const QObject *receiver=nullptr, const char *member=nullptr) const
 
bool disconnect (const QObject *receiver, const char *member=nullptr) const
 
void dumpObjectTree () const
 Dumps a tree of children to the debug output.
 
void dumpObjectInfo () const
 Dumps information about signal connections, etc.
 
bool setProperty (const char *name, const QVariant &value)
 Sets the value of the object's name property to value.
 
bool setProperty (const char *name, QVariant &&value)
 
QVariant property (const char *name) const
 Returns the value of the object's name property.
 
QList< QByteArraydynamicPropertyNames () const
 
QBindingStoragebindingStorage ()
 
const QBindingStoragebindingStorage () const
 
QObjectparent () const
 Returns a pointer to the parent object.
 
bool inherits (const char *classname) const
 Returns true if this object is an instance of a class that inherits className or a QObject subclass that inherits className; otherwise returns false.
 

Protected Types

template<typename T >
using ObjectPtr = std::unique_ptr<T, ObjectDeleter>
 
using RendererPtr = ObjectPtr<Renderer>
 
using StreamPtr = ObjectPtr<StreamDecoder>
 

Protected Member Functions

template<typename T , typename... Args>
ObjectPtr< T > createPlaybackEngineObject (Args &&...args)
 
virtual RendererPtr createRenderer (QPlatformMediaPlayer::TrackType trackType)
 
void updateActiveAudioOutput (QAudioOutput *output)
 
void updateActiveVideoOutput (QVideoSink *sink, bool cleanOutput=false)
 
- Protected Member Functions inherited from QObject
QObjectsender () const
 Returns a pointer to the object that sent the signal, if called in a slot activated by a signal; otherwise it returns \nullptr.
 
int senderSignalIndex () const
 
int receivers (const char *signal) const
 Returns the number of receivers connected to the signal.
 
bool isSignalConnected (const QMetaMethod &signal) const
 
virtual void timerEvent (QTimerEvent *event)
 This event handler can be reimplemented in a subclass to receive timer events for the object.
 
virtual void childEvent (QChildEvent *event)
 This event handler can be reimplemented in a subclass to receive child events.
 
virtual void customEvent (QEvent *event)
 This event handler can be reimplemented in a subclass to receive custom events.
 
virtual void connectNotify (const QMetaMethod &signal)
 
virtual void disconnectNotify (const QMetaMethod &signal)
 
 QObject (QObjectPrivate &dd, QObject *parent=nullptr)
 

Additional Inherited Members

- Public Slots inherited from QObject
void deleteLater ()
 \threadsafe
 
- Static Public Member Functions inherited from QObject
static QMetaObject::Connection connect (const QObject *sender, const char *signal, const QObject *receiver, const char *member, Qt::ConnectionType=Qt::AutoConnection)
 \threadsafe
 
static QMetaObject::Connection connect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &method, Qt::ConnectionType type=Qt::AutoConnection)
 
template<typename Func1 , typename Func2 >
static QMetaObject::Connection connect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, const typename QtPrivate::ContextTypeForFunctor< Func2 >::ContextType *context, Func2 &&slot, Qt::ConnectionType type=Qt::AutoConnection)
 
template<typename Func1 , typename Func2 >
static QMetaObject::Connection connect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, Func2 &&slot)
 
static bool disconnect (const QObject *sender, const char *signal, const QObject *receiver, const char *member)
 \threadsafe
 
static bool disconnect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &member)
 
static bool disconnect (const QMetaObject::Connection &)
 Disconnect a connection.
 
template<typename Func1 , typename Func2 >
static bool disconnect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, const typename QtPrivate::FunctionPointer< Func2 >::Object *receiver, Func2 slot)
 
template<typename Func1 >
static bool disconnect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, const QObject *receiver, void **zero)
 
- Protected Attributes inherited from QObject
QScopedPointer< QObjectDatad_ptr
 
- Properties inherited from QObject
QString objectName
 the name of this object
 

Detailed Description

Definition at line 68 of file qffmpegplaybackengine_p.h.

Member Typedef Documentation

◆ ObjectPtr

template<typename T >
using QFFmpeg::PlaybackEngine::ObjectPtr = std::unique_ptr<T, ObjectDeleter>
protected

Definition at line 134 of file qffmpegplaybackengine_p.h.

◆ RendererPtr

◆ StreamPtr

Constructor & Destructor Documentation

◆ PlaybackEngine()

QFFmpeg::PlaybackEngine::PlaybackEngine ( )

Definition at line 42 of file qffmpegplaybackengine.cpp.

◆ ~PlaybackEngine()

QFFmpeg::PlaybackEngine::~PlaybackEngine ( )
override

Definition at line 52 of file qffmpegplaybackengine.cpp.

References qCDebug.

Member Function Documentation

◆ activeTrack()

int QFFmpeg::PlaybackEngine::activeTrack ( QPlatformMediaPlayer::TrackType type) const

Definition at line 543 of file qffmpegplaybackengine.cpp.

References QFFmpeg::MediaDataHolder::activeTrack().

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◆ buffered

void QFFmpeg::PlaybackEngine::buffered ( )
signal

◆ createPlaybackEngineObject()

template<typename T , typename... Args>
PlaybackEngine::ObjectPtr< T > QFFmpeg::PlaybackEngine::createPlaybackEngineObject ( Args &&... args)
protected

Definition at line 219 of file qffmpegplaybackengine_p.h.

References args.

◆ createRenderer()

PlaybackEngine::RendererPtr QFFmpeg::PlaybackEngine::createRenderer ( QPlatformMediaPlayer::TrackType trackType)
protectedvirtual

Definition at line 195 of file qffmpegplaybackengine.cpp.

References QPlatformMediaPlayer::AudioStream, QFFmpeg::MediaDataHolder::rotation(), QPlatformMediaPlayer::SubtitleStream, and QPlatformMediaPlayer::VideoStream.

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◆ currentPosition()

qint64 QFFmpeg::PlaybackEngine::currentPosition ( bool topPos = true) const

Definition at line 501 of file qffmpegplaybackengine.cpp.

References QFFmpeg::TimeController::currentPosition(), i, pos, QFFmpeg::LoopOffset::pos, renderer, and QPlatformMediaPlayer::SubtitleStream.

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◆ duration()

qint64 QFFmpeg::PlaybackEngine::duration ( ) const

Definition at line 525 of file qffmpegplaybackengine.cpp.

References QFFmpeg::MediaDataHolder::duration().

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◆ endOfStream

void QFFmpeg::PlaybackEngine::endOfStream ( )
signal

◆ errorOccured

void QFFmpeg::PlaybackEngine::errorOccured ( int ,
const QString &  )
signal

◆ isSeekable()

bool QFFmpeg::PlaybackEngine::isSeekable ( ) const

Definition at line 530 of file qffmpegplaybackengine.cpp.

References QFFmpeg::MediaDataHolder::isSeekable().

Referenced by setLoops().

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◆ loopChanged

void QFFmpeg::PlaybackEngine::loopChanged ( )
signal

◆ metaData()

const QMediaMetaData & QFFmpeg::PlaybackEngine::metaData ( ) const

Definition at line 538 of file qffmpegplaybackengine.cpp.

References QFFmpeg::MediaDataHolder::metaData().

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◆ pause()

void QFFmpeg::PlaybackEngine::pause ( )
inline

Definition at line 89 of file qffmpegplaybackengine_p.h.

References QMediaPlayer::PausedState, and setState().

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◆ play()

void QFFmpeg::PlaybackEngine::play ( )
inline

Definition at line 86 of file qffmpegplaybackengine_p.h.

References QMediaPlayer::PlayingState, and setState().

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◆ playbackRate()

float QFFmpeg::PlaybackEngine::playbackRate ( ) const

Definition at line 292 of file qffmpegplaybackengine.cpp.

References QFFmpeg::TimeController::playbackRate().

Referenced by setPlaybackRate().

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◆ seek()

void QFFmpeg::PlaybackEngine::seek ( qint64 pos)

Definition at line 235 of file qffmpegplaybackengine.cpp.

References pos, QFFmpeg::LoopOffset::pos, QFFmpeg::TimeController::setPaused(), and QFFmpeg::TimeController::sync().

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◆ setActiveTrack()

void QFFmpeg::PlaybackEngine::setActiveTrack ( QPlatformMediaPlayer::TrackType type,
int streamNumber )

Definition at line 548 of file qffmpegplaybackengine.cpp.

References QFFmpeg::MediaDataHolder::setActiveTrack().

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◆ setAudioSink() [1/2]

void QFFmpeg::PlaybackEngine::setAudioSink ( QAudioOutput * output)

Definition at line 487 of file qffmpegplaybackengine.cpp.

References output, and updateActiveAudioOutput().

Referenced by setAudioSink().

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◆ setAudioSink() [2/2]

void QFFmpeg::PlaybackEngine::setAudioSink ( QPlatformAudioOutput * output)

Definition at line 483 of file qffmpegplaybackengine.cpp.

References output, and setAudioSink().

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◆ setLoops()

void QFFmpeg::PlaybackEngine::setLoops ( int loopsCount)

Definition at line 245 of file qffmpegplaybackengine.cpp.

References QFFmpeg::LoopOffset::index, isSeekable(), qCDebug, and qWarning.

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◆ setMedia()

void QFFmpeg::PlaybackEngine::setMedia ( MediaDataHolder media)

Definition at line 458 of file qffmpegplaybackengine.cpp.

References QFFmpeg::MediaDataHolder::avContext(), Q_ASSERT, and QMediaPlayer::StoppedState.

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◆ setPlaybackRate()

void QFFmpeg::PlaybackEngine::setPlaybackRate ( float rate)

Definition at line 284 of file qffmpegplaybackengine.cpp.

References playbackRate(), renderer, and QFFmpeg::TimeController::setPlaybackRate().

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◆ setState()

void QFFmpeg::PlaybackEngine::setState ( QMediaPlayer::PlaybackState state)

Definition at line 119 of file qffmpegplaybackengine.cpp.

References QFFmpeg::MediaDataHolder::avContext(), state, and QMediaPlayer::StoppedState.

Referenced by pause(), play(), and stop().

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◆ setVideoSink()

void QFFmpeg::PlaybackEngine::setVideoSink ( QVideoSink * sink)

Definition at line 468 of file qffmpegplaybackengine.cpp.

References updateActiveVideoOutput().

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◆ stop()

void QFFmpeg::PlaybackEngine::stop ( )
inline

Definition at line 92 of file qffmpegplaybackengine_p.h.

References setState(), and QMediaPlayer::StoppedState.

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◆ streamInfo()

const QList< MediaDataHolder::StreamInfo > & QFFmpeg::PlaybackEngine::streamInfo ( QPlatformMediaPlayer::TrackType trackType) const

Definition at line 533 of file qffmpegplaybackengine.cpp.

References QFFmpeg::MediaDataHolder::streamInfo().

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◆ updateActiveAudioOutput()

void QFFmpeg::PlaybackEngine::updateActiveAudioOutput ( QAudioOutput * output)
protected

Definition at line 585 of file qffmpegplaybackengine.cpp.

References QPlatformMediaPlayer::AudioStream, get(), output, and renderer.

Referenced by setAudioSink().

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◆ updateActiveVideoOutput()

void QFFmpeg::PlaybackEngine::updateActiveVideoOutput ( QVideoSink * sink,
bool cleanOutput = false )
protected

Definition at line 592 of file qffmpegplaybackengine.cpp.

References get(), renderer, QPlatformMediaPlayer::SubtitleStream, and QPlatformMediaPlayer::VideoStream.

Referenced by setVideoSink().

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