QMediaService Class Reference
The QMediaService class provides a common base class for media service implementations. More...
#include <QMediaService>
This class is under development and is subject to change.
Public Functions
~QMediaService () | |
virtual void | releaseControl ( QMediaControl * control ) = 0 |
virtual QMediaControl * | requestControl ( const char * interface ) = 0 |
T | requestControl () |
Protected Functions
QMediaService ( QObject * parent ) |
Detailed Description
The QMediaService class provides a common base class for media service implementations.
Media services provide implementations of the functionality promised by media objects, and allow multiple providers to implement a QMediaObject.
To provide the functionality of a QMediaObject media services implement QMediaControl interfaces. Services typically implement one core media control which provides the core feature of a media object, and some number of additional controls which provide either optional features of the media object, or features of a secondary media object or peripheral object.
A pointer to media service's QMediaControl implementation can be obtained by passing the control's interface name to the requestControl() function.
QMediaPlayerControl *control = qobject_cast<QMediaPlayerControl *>( service->requestControl("com.nokia.Qt.QMediaPlayerControl/1.0"));
Media objects can use services loaded dynamically from plug-ins or implemented statically within an applications. Plug-in based services should also implement the QMediaServiceProviderPlugin interface. Static services should implement the QMediaServiceProvider interface.