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Internal/Contributor docs for the Qt SDK. Note: These are NOT official API docs; those are found at https://doc.qt.io/
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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 (QMediaPlayer::Error, 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 (const QPlaybackOptions &options)
 ~PlaybackEngine () override
void setMedia (MediaDataHolder media)
void setVideoSink (QVideoSink *sink)
void setAudioSink (QAudioOutput *output)
void setAudioSink (QPlatformAudioOutput *output)
void setAudioBufferOutput (QAudioBufferOutput *output)
void setState (QMediaPlayer::PlaybackState state)
void play ()
void pause ()
void stop ()
void seek (TrackPosition pos)
void setLoops (int loopsCount)
void setPlaybackRate (float rate)
float playbackRate () const
void setActiveTrack (QPlatformMediaPlayer::TrackType type, int streamNumber)
TrackPosition currentPosition (bool topPos=true) const
TrackDuration duration () const
bool isSeekable () const
const QList< MediaDataHolder::StreamInfo > & streamInfo (QPlatformMediaPlayer::TrackType trackType) const
const QMediaMetaDatametaData () const
int activeTrack (QPlatformMediaPlayer::TrackType type) const
void setPitchCompensation (bool enabled)
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 isQmlObjectType () const
 Returns whether the object has been created by the QML engine or ownership has been explicitly set via QJSEngine::setObjectOwnership().
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)
template<typename AudioOutput>
void updateActiveAudioOutput (AudioOutput *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 72 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 142 of file qffmpegplaybackengine_p.h.

◆ RendererPtr

◆ StreamPtr

Constructor & Destructor Documentation

◆ PlaybackEngine()

QFFmpeg::PlaybackEngine::PlaybackEngine ( const QPlaybackOptions & options)
explicit

Definition at line 43 of file qffmpegplaybackengine.cpp.

◆ ~PlaybackEngine()

QFFmpeg::PlaybackEngine::~PlaybackEngine ( )
override

Definition at line 56 of file qffmpegplaybackengine.cpp.

Member Function Documentation

◆ activeTrack()

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

Definition at line 567 of file qffmpegplaybackengine.cpp.

◆ buffered

void QFFmpeg::PlaybackEngine::buffered ( )
signal

◆ createPlaybackEngineObject()

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

Definition at line 239 of file qffmpegplaybackengine_p.h.

◆ createRenderer()

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

Reimplemented in QFFmpeg::AudioDecoder, and QFFmpeg::AudioDecoder.

Definition at line 218 of file qffmpegplaybackengine.cpp.

◆ currentPosition()

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

Definition at line 524 of file qffmpegplaybackengine.cpp.

◆ duration()

TrackDuration QFFmpeg::PlaybackEngine::duration ( ) const

Definition at line 549 of file qffmpegplaybackengine.cpp.

◆ endOfStream

void QFFmpeg::PlaybackEngine::endOfStream ( )
signal

◆ errorOccured

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

◆ isSeekable()

bool QFFmpeg::PlaybackEngine::isSeekable ( ) const

Definition at line 554 of file qffmpegplaybackengine.cpp.

Referenced by setLoops().

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◆ loopChanged

void QFFmpeg::PlaybackEngine::loopChanged ( )
signal

◆ metaData()

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

Definition at line 562 of file qffmpegplaybackengine.cpp.

◆ pause()

void QFFmpeg::PlaybackEngine::pause ( )
inline

Definition at line 95 of file qffmpegplaybackengine_p.h.

◆ play()

void QFFmpeg::PlaybackEngine::play ( )
inline

Definition at line 92 of file qffmpegplaybackengine_p.h.

◆ playbackRate()

float QFFmpeg::PlaybackEngine::playbackRate ( ) const

Definition at line 317 of file qffmpegplaybackengine.cpp.

Referenced by setPlaybackRate().

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◆ seek()

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

Definition at line 259 of file qffmpegplaybackengine.cpp.

◆ setActiveTrack()

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

Definition at line 579 of file qffmpegplaybackengine.cpp.

◆ setAudioBufferOutput()

void QFFmpeg::PlaybackEngine::setAudioBufferOutput ( QAudioBufferOutput * output)

Definition at line 516 of file qffmpegplaybackengine.cpp.

◆ setAudioSink() [1/2]

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

Definition at line 502 of file qffmpegplaybackengine.cpp.

Referenced by setAudioSink().

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◆ setAudioSink() [2/2]

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

Definition at line 498 of file qffmpegplaybackengine.cpp.

References setAudioSink().

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◆ setLoops()

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

Definition at line 270 of file qffmpegplaybackengine.cpp.

References isSeekable().

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◆ setMedia()

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

Definition at line 473 of file qffmpegplaybackengine.cpp.

◆ setPitchCompensation()

void QFFmpeg::PlaybackEngine::setPitchCompensation ( bool enabled)

Definition at line 572 of file qffmpegplaybackengine.cpp.

References QFFmpeg::AudioRenderer::setPitchCompensation().

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◆ setPlaybackRate()

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

Definition at line 309 of file qffmpegplaybackengine.cpp.

References playbackRate().

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◆ setState()

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

Definition at line 142 of file qffmpegplaybackengine.cpp.

◆ setVideoSink()

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

Definition at line 483 of file qffmpegplaybackengine.cpp.

References updateActiveVideoOutput().

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◆ stop()

void QFFmpeg::PlaybackEngine::stop ( )
inline

Definition at line 98 of file qffmpegplaybackengine_p.h.

◆ streamInfo()

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

Definition at line 557 of file qffmpegplaybackengine.cpp.

◆ updateActiveAudioOutput()

template<typename AudioOutput>
void QFFmpeg::PlaybackEngine::updateActiveAudioOutput ( AudioOutput * output)
protected

Definition at line 625 of file qffmpegplaybackengine.cpp.

◆ updateActiveVideoOutput()

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

Definition at line 631 of file qffmpegplaybackengine.cpp.

Referenced by setVideoSink().

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