AudioOutput Class Reference
#include <Phonon/AudioOutput >
Class for audio output to the soundcard.
Use this class to define the audio output.
Author Matthias Kretz kretz.nosp@m. @kde.nosp@m. .org
See also Phonon::Ui::VolumeSlider
Definition at line 50 of file audiooutput.h .
AudioOutput (Phonon::Category category , QObject *parent =0)
Creates a new AudioOutput that defines output to a physical device. More...
AudioOutput (QObject *parent =0)
QString name () const
qreal volume () const
qreal volumeDecibel () const
Phonon::Category category () const
Returns the category of this output. More...
AudioOutputDevice outputDevice () const
bool isMuted () const
~AbstractAudioOutput ()
Q_INVOKABLE QObject (QObject *parent =0)
virtual ~QObject ()
virtual bool event (QEvent *)
virtual bool eventFilter (QObject *, QEvent *)
QString objectName () const
void setObjectName (const QString &name )
bool isWidgetType () const
bool signalsBlocked () const
bool blockSignals (bool b )
QThread * thread () const
void moveToThread (QThread *thread )
int startTimer (int interval)
void killTimer (int id )
template<typename T >
T findChild (const QString &aName=QString ()) const
template<typename T >
QList < T > findChildren (const QString &aName=QString ()) const
template<typename T >
QList < T > findChildren (const QRegExp &re) const
const QObjectList & children () const
void setParent (QObject *)
void installEventFilter (QObject *)
void removeEventFilter (QObject *)
bool connect (const QObject *sender , const char *signal, const char *member , Qt::ConnectionType type =Qt::AutoConnection ) const
bool disconnect (const char *signal=0, const QObject *receiver=0, const char *member =0)
bool disconnect (const QObject *receiver, const char *member =0)
void dumpObjectTree ()
void dumpObjectInfo ()
bool setProperty (const char *name , const QVariant &value )
QVariant property (const char *name ) const
QList < QByteArray > dynamicPropertyNames () const
void setUserData (uint id , QObjectUserData *data )
QObjectUserData * userData (uint id ) const
QObject * parent () const
bool inherits (const char *classname) const
virtual ~MediaNode ()
bool isValid () const
Tells whether the backend provides an implementation of this class. More...
QList < Path > inputPaths () const
QList < Path > outputPaths () const
static bool connect (const QObject *sender , const char *signal, const QObject *receiver, const char *member , Qt::ConnectionType =Qt::AutoConnection )
static bool connect (const QObject *sender , const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &method, Qt::ConnectionType type =Qt::AutoConnection )
static bool disconnect (const QObject *sender , const char *signal, const QObject *receiver, const char *member )
static bool disconnect (const QObject *sender , const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &member )
static uint registerUserData ()
AbstractAudioOutput (AbstractAudioOutputPrivate &dd, QObject *parent )
QObject * sender () const
int senderSignalIndex () const
int receivers (const char *signal) const
virtual void timerEvent (QTimerEvent *)
virtual void childEvent (QChildEvent *)
virtual void customEvent (QEvent *)
virtual void connectNotify (const char *signal)
virtual void disconnectNotify (const char *signal)
QObject (QObjectPrivate &dd, QObject *parent =0)
MediaNode (MediaNodePrivate &dd)
QScopedPointer < QObjectData > d_ptr
MediaNodePrivate *const k_ptr
static const QMetaObject staticQtMetaObject
Creates a new AudioOutput that defines output to a physical device.
Parameters
category The category can be used by mixer applications to group volume controls of applications into categories. That makes it easier for the user to identify the programs. The category is also used for the default output device that is configured centrally. As an example: often users want to have the audio signal of a VoIP application go to their USB headset while all other sounds should go to the internal soundcard.
parent QObject parent
See also Phonon::categoryToString
outputDevice
qreal volumeDecibel
(
)
const
void setVolume
(
qreal
newVolume )
slot
void setVolumeDecibel
(
qreal
newVolumeDecibel )
slot
void setMuted
(
bool
mute )
slot
void volumeChanged
(
qreal
newVolume )
signal
This signal is emitted whenever the volume has changed.
As the volume can change without a call to setVolume (calls over dbus) this is important to keep a widget showing the current volume up to date.
void mutedChanged
(
bool
)
signal
This signal is emitted when the muted property has changed.
As this property can change by IPC (DBus) calls a UI element showing the muted property should listen to this signal.
This signal is emitted when the (hardware) device for the output has changed.
The change can happen either through setOutputDevice or if the global configuration for the used category has changed.
See also outputDevice
friend class FactoryPrivate
friend
friend class ::AudioOutputAdaptor
friend
This is the name that appears in Mixer applications that control the volume of this output.
See also category
Definition at line 62 of file audiooutput.h .
This is the current loudness of the output (it is using Stevens' law to calculate the change in voltage internally).
See also volumeDecibel
Definition at line 69 of file audiooutput.h .
This is the current volume of the output in decibel.
0 dB means no change in volume, -6dB means an attenuation of the voltage to 50% and an attenuation of the power to 25%, -inf dB means silence.
See also volume
Definition at line 79 of file audiooutput.h .
This property holds the (hardware) destination for the output.
The default device is determined by the category and the global configuration for that category of outputs. Normally you don't need to override this setting - letting the user change the global configuration is the right choice. You can still override the device though, if you have good reasons to do so.
See also outputDeviceChanged
Definition at line 91 of file audiooutput.h .
This property tells whether the output is muted.
Muting the output has the same effect as calling setVolume(0.0).
Definition at line 98 of file audiooutput.h .
The documentation for this class was generated from the following file: