Qt
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>.
Loading...
Searching...
No Matches
QWindowsAudioSource Class Reference

#include <qwindowsaudiosource_p.h>

+ Inheritance diagram for QWindowsAudioSource:
+ Collaboration diagram for QWindowsAudioSource:

Public Member Functions

 QWindowsAudioSource (ComPtr< IMMDevice > device, QObject *parent)
 
 ~QWindowsAudioSource ()
 
qint64 read (char *data, qint64 len)
 
void setFormat (const QAudioFormat &fmt) override
 
QAudioFormat format () const override
 
QIODevicestart () override
 
void start (QIODevice *device) override
 
void stop () override
 
void reset () override
 
void suspend () override
 
void resume () override
 
qsizetype bytesReady () const override
 
void setBufferSize (qsizetype value) override
 
qsizetype bufferSize () const override
 
qint64 processedUSecs () const override
 
QAudio::Error error () const override
 
QAudio::State state () const override
 
void setVolume (qreal volume) override
 
qreal volume () const override
 
- Public Member Functions inherited from QPlatformAudioSource
 QPlatformAudioSource (QObject *parent)
 
- Public Member Functions inherited from QAudioStateChangeNotifier
 QAudioStateChangeNotifier (QObject *parent=nullptr)
 
- 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.
 

Additional Inherited Members

- Public Slots inherited from QObject
void deleteLater ()
 \threadsafe
 
- Signals inherited from QAudioStateChangeNotifier
void errorChanged (QAudio::Error error)
 
void stateChanged (QAudio::State state)
 
- 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)
 
- Public Attributes inherited from QPlatformAudioSource
QElapsedTimer elapsedTime
 
- 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 42 of file qwindowsaudiosource_p.h.

Constructor & Destructor Documentation

◆ QWindowsAudioSource()

QWindowsAudioSource::QWindowsAudioSource ( ComPtr< IMMDevice > device,
QObject * parent )

Definition at line 49 of file qwindowsaudiosource.cpp.

References QTimer::callOnTimeout(), QIODevice::open(), Qt::PreciseTimer, QIODeviceBase::ReadOnly, QTimer::setSingleShot(), QTimer::setTimerType(), and QIODeviceBase::Unbuffered.

+ Here is the call graph for this function:

◆ ~QWindowsAudioSource()

QWindowsAudioSource::~QWindowsAudioSource ( )

Definition at line 71 of file qwindowsaudiosource.cpp.

References stop().

+ Here is the call graph for this function:

Member Function Documentation

◆ bufferSize()

qsizetype QWindowsAudioSource::bufferSize ( ) const
overridevirtual

Implements QPlatformAudioSource.

Definition at line 381 of file qwindowsaudiosource.cpp.

◆ bytesReady()

qsizetype QWindowsAudioSource::bytesReady ( ) const
overridevirtual

Implements QPlatformAudioSource.

Definition at line 317 of file qwindowsaudiosource.cpp.

References QWindowsAudioUtils::audioClientFramesInUse(), QAudioFormat::bytesForDuration(), QAudioFormat::durationForFrames(), QWindowsResampler::inputFormat(), QWindowsResampler::outputFormat(), QByteArray::size(), QAudio::StoppedState, and QAudio::SuspendedState.

+ Here is the call graph for this function:

◆ error()

QAudio::Error QWindowsAudioSource::error ( ) const
overridevirtual

Implements QPlatformAudioSource.

Definition at line 76 of file qwindowsaudiosource.cpp.

◆ format()

QAudioFormat QWindowsAudioSource::format ( ) const
overridevirtual

Implements QPlatformAudioSource.

Definition at line 98 of file qwindowsaudiosource.cpp.

◆ processedUSecs()

qint64 QWindowsAudioSource::processedUSecs ( ) const
overridevirtual

Implements QPlatformAudioSource.

Definition at line 386 of file qwindowsaudiosource.cpp.

References QAudioFormat::durationForBytes(), QWindowsResampler::outputFormat(), QAudio::StoppedState, and QWindowsResampler::totalOutputBytes().

+ Here is the call graph for this function:

◆ read()

qint64 QWindowsAudioSource::read ( char * data,
qint64 len )

Definition at line 334 of file qwindowsaudiosource.cpp.

References QAudio::ActiveState, QByteArray::data(), QByteArray::isEmpty(), QAudio::NoError, out, qMin(), and QByteArray::size().

+ Here is the call graph for this function:

◆ reset()

void QWindowsAudioSource::reset ( )
overridevirtual

Implements QPlatformAudioSource.

Definition at line 401 of file qwindowsaudiosource.cpp.

References stop().

+ Here is the call graph for this function:

◆ resume()

void QWindowsAudioSource::resume ( )
overridevirtual

◆ setBufferSize()

void QWindowsAudioSource::setBufferSize ( qsizetype value)
overridevirtual

Implements QPlatformAudioSource.

Definition at line 376 of file qwindowsaudiosource.cpp.

◆ setFormat()

void QWindowsAudioSource::setFormat ( const QAudioFormat & fmt)
overridevirtual

Implements QPlatformAudioSource.

Definition at line 86 of file qwindowsaudiosource.cpp.

References fmt, qWarning, and QAudio::StoppedState.

◆ setVolume()

void QWindowsAudioSource::setVolume ( qreal volume)
overridevirtual

Implements QPlatformAudioSource.

Definition at line 61 of file qwindowsaudiosource.cpp.

References qBound(), and volume().

+ Here is the call graph for this function:

◆ start() [1/2]

QIODevice * QWindowsAudioSource::start ( )
overridevirtual

Implements QPlatformAudioSource.

Definition at line 226 of file qwindowsaudiosource.cpp.

References emit, QAudioStateChangeNotifier::errorChanged(), QAudio::IdleState, QAudio::NoError, QAudio::OpenError, qCDebug, and QAudio::StoppedState.

+ Here is the call graph for this function:

◆ start() [2/2]

void QWindowsAudioSource::start ( QIODevice * device)
overridevirtual

Implements QPlatformAudioSource.

Definition at line 206 of file qwindowsaudiosource.cpp.

References QAudio::ActiveState, device, emit, QAudioStateChangeNotifier::errorChanged(), QAudio::NoError, QAudio::OpenError, qCDebug, and QAudio::StoppedState.

+ Here is the call graph for this function:

◆ state()

QAudio::State QWindowsAudioSource::state ( ) const
overridevirtual

Implements QPlatformAudioSource.

Definition at line 81 of file qwindowsaudiosource.cpp.

◆ stop()

void QWindowsAudioSource::stop ( )
overridevirtual

Implements QPlatformAudioSource.

Definition at line 243 of file qwindowsaudiosource.cpp.

References QAudio::StoppedState.

Referenced by ~QWindowsAudioSource(), and reset().

+ Here is the caller graph for this function:

◆ suspend()

void QWindowsAudioSource::suspend ( )
overridevirtual

◆ volume()

qreal QWindowsAudioSource::volume ( ) const
overridevirtual

Implements QPlatformAudioSource.

Definition at line 66 of file qwindowsaudiosource.cpp.

Referenced by setVolume().

+ Here is the caller graph for this function:

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