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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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QFFmpegAudioDecoder Class Reference

#include <qffmpegaudiodecoder_p.h>

Inheritance diagram for QFFmpegAudioDecoder:
Collaboration diagram for QFFmpegAudioDecoder:

Public Slots

void newAudioBuffer (const QAudioBuffer &b)
void done ()
void errorSignal (int err, const QString &errorString)
Public Slots inherited from QObject
void deleteLater ()
 \threadsafe

Public Member Functions

 QFFmpegAudioDecoder (QAudioDecoder *parent)
 ~QFFmpegAudioDecoder () override
QUrl source () const override
void setSource (const QUrl &fileName) override
QIODevicesourceDevice () const override
void setSourceDevice (QIODevice *device) override
void start () override
void stop () override
QAudioFormat audioFormat () const override
void setAudioFormat (const QAudioFormat &format) override
QAudioBuffer read () override
Public Member Functions inherited from QPlatformAudioDecoder
virtual bool bufferAvailable () const
virtual qint64 position () const
virtual qint64 duration () const
void formatChanged (const QAudioFormat &format)
void sourceChanged ()
void error (int error, const QString &errorString)
void clearError ()
void bufferReady ()
void bufferAvailableChanged (bool available)
void setIsDecoding (bool running=true)
void finished ()
bool isDecoding () const
void positionChanged (qint64 position)
void durationChanged (qint64 duration)
QAudioDecoder::Error error () const
QString errorString () const
virtual bool canReadQrc () const
 ~QPlatformAudioDecoder () override
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.

Additional Inherited Members

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.
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 Member Functions inherited from QPlatformAudioDecoder
 QPlatformAudioDecoder (QAudioDecoder *parent)
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)
Protected Attributes inherited from QObject
QScopedPointer< QObjectDatad_ptr
Properties inherited from QObject
QString objectName
 the name of this object

Detailed Description

Definition at line 28 of file qffmpegaudiodecoder_p.h.

Constructor & Destructor Documentation

◆ QFFmpegAudioDecoder()

QFFmpegAudioDecoder::QFFmpegAudioDecoder ( QAudioDecoder * parent)

Definition at line 88 of file qffmpegaudiodecoder.cpp.

◆ ~QFFmpegAudioDecoder()

QFFmpegAudioDecoder::~QFFmpegAudioDecoder ( )
overridedefault

Member Function Documentation

◆ audioFormat()

QAudioFormat QFFmpegAudioDecoder::audioFormat ( ) const
overridevirtual

Implements QPlatformAudioDecoder.

Definition at line 183 of file qffmpegaudiodecoder.cpp.

◆ done

void QFFmpegAudioDecoder::done ( )
slot

Definition at line 220 of file qffmpegaudiodecoder.cpp.

Referenced by stop().

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◆ errorSignal

void QFFmpegAudioDecoder::errorSignal ( int err,
const QString & errorString )
slot

Definition at line 226 of file qffmpegaudiodecoder.cpp.

◆ newAudioBuffer

void QFFmpegAudioDecoder::newAudioBuffer ( const QAudioBuffer & b)
slot

Definition at line 206 of file qffmpegaudiodecoder.cpp.

◆ read()

QAudioBuffer QFFmpegAudioDecoder::read ( )
overridevirtual

Implements QPlatformAudioDecoder.

Definition at line 194 of file qffmpegaudiodecoder.cpp.

◆ setAudioFormat()

void QFFmpegAudioDecoder::setAudioFormat ( const QAudioFormat & format)
overridevirtual

Implements QPlatformAudioDecoder.

Definition at line 188 of file qffmpegaudiodecoder.cpp.

◆ setSource()

void QFFmpegAudioDecoder::setSource ( const QUrl & fileName)
overridevirtual

Implements QPlatformAudioDecoder.

Definition at line 100 of file qffmpegaudiodecoder.cpp.

References stop().

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◆ setSourceDevice()

void QFFmpegAudioDecoder::setSourceDevice ( QIODevice * device)
overridevirtual

Implements QPlatformAudioDecoder.

Definition at line 114 of file qffmpegaudiodecoder.cpp.

References stop().

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◆ source()

QUrl QFFmpegAudioDecoder::source ( ) const
overridevirtual

Implements QPlatformAudioDecoder.

Definition at line 95 of file qffmpegaudiodecoder.cpp.

◆ sourceDevice()

QIODevice * QFFmpegAudioDecoder::sourceDevice ( ) const
overridevirtual

Implements QPlatformAudioDecoder.

Definition at line 109 of file qffmpegaudiodecoder.cpp.

◆ start()

void QFFmpegAudioDecoder::start ( )
overridevirtual

Implements QPlatformAudioDecoder.

Definition at line 122 of file qffmpegaudiodecoder.cpp.

◆ stop()

void QFFmpegAudioDecoder::stop ( )
overridevirtual

Implements QPlatformAudioDecoder.

Definition at line 174 of file qffmpegaudiodecoder.cpp.

References done().

Referenced by setSource(), and setSourceDevice().

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