Phonon::BackendCapabilities Namespace Reference [Information about the backend]

Collection of functions describing the capabilities of the Backend. More...

Classes
class	Notifier
	Notifications about backend capabilities. More...
Functions
Notifier *	notifier ()
QStringList	availableMimeTypes ()
bool	isMimeTypeAvailable (const QString &mimeType)
QList< AudioOutputDevice >	availableAudioOutputDevices ()
QList< EffectDescription >	availableAudioEffects ()

---

Detailed Description

Collection of functions describing the capabilities of the Backend.

Author:

Matthias Kretz <kretz@kde.org>

---

Function Documentation

QList<EffectDescription> Phonon::BackendCapabilities::availableAudioEffects

(

)

Returns the audio capture devices the backend supports.

Returns:

A list of AudioCaptureDevice objects that give a name and description for every supported audio capture device. Returns the video output devices the backend supports.

A list of VideoOutputDevice objects that give a name and description for every supported video output device. Returns the video capture devices the backend supports.

A list of VideoCaptureDevice objects that give a name and description for every supported video capture device. Returns the visualization effects the backend supports.

A list of VisualizationEffect objects that give a name and description for every supported visualization effect. Returns descriptions for the audio effects the backend supports.

A list of AudioEffectDescription objects that give a name and description for every supported audio effect.

QList<AudioOutputDevice> Phonon::BackendCapabilities::availableAudioOutputDevices

(

)

Returns the audio output devices the backend supports.

Returns:

A list of AudioOutputDevice objects that give a name and description for every supported audio output device.

QStringList Phonon::BackendCapabilities::availableMimeTypes

(

)

Returns a list of mime types that the Backend can decode.

See also:

isMimeTypeAvailable()

bool Phonon::BackendCapabilities::isMimeTypeAvailable

(

const QString &

mimeType

)

Often all you want to know is whether one given MIME type can be decoded by the backend.

Use this method in favor of availableMimeTypes() as it can give you a negative answer without having a backend loaded.

See also:

availableMimeTypes();

Notifier* Phonon::BackendCapabilities::notifier

(

)

Use this function to get a QObject pointer to connect to the capabilitiesChanged signal.

Returns:

a pointer to a QObject.

The capabilitiesChanged signal is emitted if the capabilities have changed. This can happen if the user has requested a backend change.

To connect to this signal do the following:

 QObject::connect(BackendCapabilities::notifier(), SIGNAL(capabilitiesChanged()), ...

See also:

Notifier::capabilitiesChanged()