Detailed Description
The QMediaRecorderControl class provides access to the recording functionality of a QMediaService.
If a QMediaService can record media it will implement QMediaRecorderControl. This control provides a means to set the output location, and start, pause and stop recording. It also provides feedback on the duration of the recording.
The functionality provided by this control is exposed to application code through the QMediaRecorder class.
The interface name of QMediaRecorderControl is org.qt-project.qt.mediarecordercontrol/5.0 as defined in QMediaRecorderControl_iid.
Member Function Documentation
QMediaRecorderControl::QMediaRecorderControl(QObject * parent = 0) [protected]
Constructs a media recorder control with the given parent.
QMediaRecorderControl::~QMediaRecorderControl() [virtual]
Destroys a media recorder control.
void QMediaRecorderControl::actualLocationChanged(const QUrl & location) [signal]
Signals that the actual media location has changed. This signal should be emitted at start of recording.
void QMediaRecorderControl::applySettings() [pure virtual]
Commits the encoder settings and performs pre-initialization to reduce delays when recording is started.
qint64 QMediaRecorderControl::duration() const [pure virtual]
Return the current duration in milliseconds.
void QMediaRecorderControl::durationChanged(qint64 duration) [signal]
Signals that the duration of the recorded media has changed.
This only emitted when there is a discontinuous change in the duration such as being reset to 0.
void QMediaRecorderControl::error(int error, const QString & errorString) [signal]
Signals that an error has occurred. The errorString describes the error.
bool QMediaRecorderControl::isMuted() const [pure virtual]
Returns true if the recorder is muted, and false if it is not.
void QMediaRecorderControl::mutedChanged(bool muted) [signal]
Signals that the muted state of a media recorder has changed.
QUrl QMediaRecorderControl::outputLocation() const [pure virtual]
Returns the current output location being used.
See also setOutputLocation().
void QMediaRecorderControl::setMuted(bool muted) [pure virtual slot]
Sets the muted state of a media recorder.
See also isMuted().
bool QMediaRecorderControl::setOutputLocation(const QUrl & location) [pure virtual]
Sets the output location and returns if this operation is successful. If file at the output location already exists, it should be overwritten.
The location can be relative or empty; in this case the service should use the system specific place and file naming scheme.
After recording has started, the backend should report the actual file location with actualLocationChanged() signal.
See also outputLocation().
void QMediaRecorderControl::setState(QMediaRecorder::State state) [pure virtual slot]
Set the media recorder state.
See also state().
QMediaRecorder::State QMediaRecorderControl::state() const [pure virtual]
Return the current recording state.
See also setState().
void QMediaRecorderControl::stateChanged(QMediaRecorder::State state) [signal]
Signals that the state of a media recorder has changed.
QMediaRecorder::Status QMediaRecorderControl::status() const [pure virtual]
Return the current recording status.
void QMediaRecorderControl::statusChanged(QMediaRecorder::Status status) [signal]
Signals that the status of a media recorder has changed.
