QMediaGaplessPlaybackControl Class▲
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Header: QMediaGaplessPlaybackControl
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qmake: QT += multimedia
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Inherits: QMediaControl
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Group: QMediaGaplessPlaybackControl is part of multimedia_control
Detailed Description▲
If a QMediaService supports gapless playback it will implement QMediaGaplessPlaybackControl. This control provides a means to set the next media or crossfade time for smooth transitions between tracks.
The functionality provided by this control is exposed to application code through the QMediaPlayer class.
The interface name of QMediaGaplessPlaybackControl is org.qt-project.qt.mediagaplessplaybackcontrol/5.0 as defined in QMediaGaplessPlaybackControl_iid.
See Also▲
See also QMediaService::requestControl(), QMediaPlayer
Member Function Documentation▲
[explicit protected] QMediaGaplessPlaybackControl::QMediaGaplessPlaybackControl(QObject *parent = nullptr)▲
Constructs a new gapless playback control with the given parent.
[virtual] QMediaGaplessPlaybackControl::~QMediaGaplessPlaybackControl()▲
Destroys a gapless playback control.
void QMediaGaplessPlaybackControl::advancedToNextMedia()▲
Signals when the player advances to the next media (the content of next media will be cleared).
See Also▲
See also nextMedia()
[pure virtual] qreal QMediaGaplessPlaybackControl::crossfadeTime() const▲
void QMediaGaplessPlaybackControl::crossfadeTimeChanged(qreal crossfadeTime)▲
[pure virtual] bool QMediaGaplessPlaybackControl::isCrossfadeSupported() const▲
Indicates whether crossfading is supported or not. If crossfading is not supported, setCrossfadeTime() will be ignored and crossfadeTime() will always return 0.
[pure virtual] QMediaContent QMediaGaplessPlaybackControl::nextMedia() const▲
void QMediaGaplessPlaybackControl::nextMediaChanged(const QMediaContent &media)▲
Signals that the next media has changed (either explicitly via setNextMedia() or when the player clears the next media while advancing to it).
See Also▲
See also nextMedia()
[pure virtual] void QMediaGaplessPlaybackControl::setCrossfadeTime(qreal crossfadeTime)▲
Sets the crossfadeTime in seconds for smooth transition.
Positive value means how much time it will take for the next media to transit from silent to full volume and vice versa for current one. So both current and the next one will be playing during this period of time.
A crossfade time of zero or negative will result in gapless playback (suitable for some continuous media).
See Also▲
See also crossfadeTime()
[pure virtual] void QMediaGaplessPlaybackControl::setNextMedia(const QMediaContent &media)▲
Macro Documentation▲
QMediaGaplessPlaybackControl_iid▲
org.qt-project.qt.mediagaplessplaybackcontrol/5.0
Defines the interface name of the QMediaGaplessPlaybackControl class.