QMediaControl¶
- PyQt5.QtMultimedia.QMediaControl
Inherits from QObject.
Inherited by QAudioDecoderControl, QAudioEncoderSettingsControl, QAudioInputSelectorControl, QAudioOutputSelectorControl, QAudioRoleControl, QCameraCaptureBufferFormatControl, QCameraCaptureDestinationControl, QCameraControl, QCameraExposureControl, QCameraFeedbackControl, QCameraFlashControl, QCameraFocusControl, QCameraImageCaptureControl, QCameraImageProcessingControl, QCameraInfoControl, QCameraLocksControl, QCameraViewfinderSettingsControl, QCameraViewfinderSettingsControl2, QCameraZoomControl, QCustomAudioRoleControl, QImageEncoderControl, QMediaAudioProbeControl, QMediaAvailabilityControl, QMediaContainerControl, QMediaGaplessPlaybackControl, QMediaNetworkAccessControl, QMediaPlayerControl, QMediaRecorderControl, QMediaStreamsControl, QMediaVideoProbeControl, QMetaDataReaderControl, QMetaDataWriterControl, QRadioDataControl, QRadioTunerControl, QVideoDeviceSelectorControl, QVideoEncoderSettingsControl, QVideoRendererControl, QVideoWidgetControl, QVideoWindowControl.
Description¶
The QMediaControl class provides a base interface for media service controls.
Media controls provide an interface to individual features provided by a media service. Most services implement a principal control which exposes the core functionality of the service and a number of optional controls which expose any additional functionality.
A pointer to a control implemented by a media service can be obtained using the requestControl() member of QMediaService. If the service doesn’t implement a control it will instead return a null pointer.
# QMediaPlayerControl *control = qobject_cast<QMediaPlayerControl *>(
# mediaService->requestControl("org.qt-project.qt.mediaplayercontrol/5.0"));
Alternatively if the IId of the control has been declared using Q_MEDIA_DECLARE_CONTROL the template version of requestControl() can be used to request the service without explicitly passing the IId or using .
# QMediaPlayerControl *control = mediaService->requestControl<QMediaPlayerControl *>();
Most application code will not interface directly with a media service’s controls, instead the QMediaObject which owns the service acts as an intermediary between one or more controls and the application.
See also
Methods¶
- __init__(parent: QObject = None)
Constructs a media control with the given parent.