The QVideoEncoderControl class provides access to the settings of a media service that performs video encoding. More...
#include <QVideoEncoderControl>
Inherits: QMediaControl.
This class was introduced in Qt Mobility 1.0.
| virtual | ~QVideoEncoderControl () |
| virtual QVariant | encodingOption ( const QString & codec, const QString & option ) const = 0 |
| virtual void | setEncodingOption ( const QString & codec, const QString & option, const QVariant & value ) = 0 |
| virtual void | setVideoSettings ( const QVideoEncoderSettings & settings ) = 0 |
| virtual QStringList | supportedEncodingOptions ( const QString & codec ) const = 0 |
| virtual QList<qreal> | supportedFrameRates ( const QVideoEncoderSettings & settings, bool * continuous = 0 ) const = 0 |
| virtual QList<QSize> | supportedResolutions ( const QVideoEncoderSettings & settings, bool * continuous = 0 ) const = 0 |
| virtual QStringList | supportedVideoCodecs () const = 0 |
| virtual QString | videoCodecDescription ( const QString & codec ) const = 0 |
| virtual QVideoEncoderSettings | videoSettings () const = 0 |
| QVideoEncoderControl ( QObject * parent = 0 ) |
| QVideoEncoderControl_iid |
The QVideoEncoderControl class provides access to the settings of a media service that performs video encoding.
If a QMediaService supports encoding video data it will implement QVideoEncoderControl. This control provides information about the limits of restricted video encoder options and allows the selection of a set of video encoder settings as specified in a QVideoEncoderSettings object.
The functionality provided by this control is exposed to application code through the QMediaRecorder class.
The interface name of QVideoEncoderControl is com.nokia.Qt.QVideoEncoderControl/1.0 as defined in QVideoEncoderControl_iid.
See also QMediaRecorder, QVideoEncoderSettings, and QMediaService::requestControl().
Create a new video encoder control object with the given parent.
Destroys a video encoder control.
Returns the value of a video codec option.
This function was introduced in Qt Mobility 1.0.
See also setEncodingOption().
Sets the value of a codec specific option.
This function was introduced in Qt Mobility 1.0.
See also encodingOption().
Sets the selected video encoder settings.
This function was introduced in Qt Mobility 1.0.
See also videoSettings().
Returns a list of supported encoding options for a video codec.
The names and types of the options in the list is system dependent.
This function was introduced in Qt Mobility 1.0.
Returns a list of supported frame rates.
If non null video settings parameter is passed, the returned list is reduced to frame rates supported with partial settings like video codec or video resolution applied.
If the encoder supports arbitrary frame rates within the supported range, *continuous is set to true, otherwise *continuous is set to false.
This function was introduced in Qt Mobility 1.0.
See also QVideoEncoderSettings::frameRate().
Returns a list of supported resolutions.
If non null video settings parameter is passed, the returned list is reduced to resolution supported with partial settings like video codec or frame rate applied.
If the encoder supports arbitrary resolutions within the supported resolutions range, *continuous is set to true, otherwise *continuous is set to false.
This function was introduced in Qt Mobility 1.0.
See also QVideoEncoderSettings::resolution().
Returns the list of supported video codecs.
This function was introduced in Qt Mobility 1.0.
Returns a description of a video codec.
This function was introduced in Qt Mobility 1.0.
Returns the video encoder settings.
The returned value may be different tha passed to QVideoEncoderControl::setVideoSettings() if the settings contains the default or undefined parameters. In this case if the undefined parameters are already resolved, they should be returned.
This function was introduced in Qt Mobility 1.0.
See also setVideoSettings().
com.nokia.Qt.QVideoEncoderControl/1.0
Defines the interface name of the QVideoEncoderControl class.
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