The QAudioEncoderControl class provides access to the settings of a media service that performs audio encoding. More...
#include <QAudioEncoderControl>Inherits: QMediaControl.
This class was introduced in Qt Mobility 1.0.
| virtual | ~QAudioEncoderControl () |
| virtual QAudioEncoderSettings | audioSettings () const = 0 |
| virtual QString | codecDescription ( const QString & codec ) const = 0 |
| virtual QVariant | encodingOption ( const QString & codec, const QString & option ) const = 0 |
| virtual void | setAudioSettings ( const QAudioEncoderSettings & settings ) = 0 |
| virtual void | setEncodingOption ( const QString & codec, const QString & option, const QVariant & value ) = 0 |
| virtual QStringList | supportedAudioCodecs () const = 0 |
| virtual QStringList | supportedEncodingOptions ( const QString & codec ) const = 0 |
| virtual QList<int> | supportedSampleRates ( const QAudioEncoderSettings & settings, bool * continuous = 0 ) const = 0 |
| QAudioEncoderControl ( QObject * parent = 0 ) |
| QAudioEncoderControl_iid |
The QAudioEncoderControl class provides access to the settings of a media service that performs audio encoding.
If a QMediaService supports encoding audio data it will implement QAudioEncoderControl. This control provides information about the limits of restricted audio encoder options and allows the selection of a set of audio encoder settings as specified in a QAudioEncoderSettings object.
The functionality provided by this control is exposed to application code through the QMediaRecorder class.
The interface name of QAudioEncoderControl is com.nokia.Qt.QAudioEncoderControl/1.0 as defined in QAudioEncoderControl_iid.
See also QMediaService::requestControl() and QMediaRecorder.
Create a new audio encode control object with the given parent.
Destroys the audio encode control.
Returns the audio encoder settings.
The returned value may be different tha passed to QAudioEncoderControl::setAudioSettings() 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 setAudioSettings().
Returns description of audio codec.
This function was introduced in Qt Mobility 1.0.
Returns the value of audio encoding option for codec.
This function was introduced in Qt Mobility 1.0.
See also setEncodingOption().
Sets the selected audio settings.
This function was introduced in Qt Mobility 1.0.
See also audioSettings().
Set the codec specific option to value.
This function was introduced in Qt Mobility 1.0.
See also encodingOption().
Returns the list of supported audio codec names.
This function was introduced in Qt Mobility 1.0.
Returns the list of codec specific audio encoding options.
This function was introduced in Qt Mobility 1.0.
Returns the list of supported audio sample rates, if known.
If non null audio settings parameter is passed, the returned list is reduced to sample rates supported with partial settings applied.
It can be used for example to query the list of sample rates, supported by specific audio codec.
If the encoder supports arbitrary sample rates within the supported rates range, *continuous is set to true, otherwise *continuous is set to false.
This function was introduced in Qt Mobility 1.0.
com.nokia.Qt.AudioEncoderControl/1.0
Defines the interface name of the QAudioEncoderControl class.