Understanding QtMultimediaWidget (solved)

[houmingc]

What is the relationship between QGraphicsVideoItem, QGraphicsScene, QGraphicView & QmediaPlayer.
Each time writing one QtMultimediaWidget, all the above class has to be instantiated.
Thinking understand their relationship aid writing QtMultimediaWidget.

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videoItem = new QGraphicsVideoItem; 
videoItem->setSize(QSizeF(640, 480));
QGraphicsScene *scene = new QGraphicsScene(this);
QGraphicsView *graphicsView = new QGraphicsView(scene);
scene->addItem(videoItem);
mediaPlayer.setVideoOutput(videoItem);          //QMediaPlayer mediaPlayer; //in header file

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QGraphicsVideoItem is a graphic item which display video
QGraphicsScene has no visual appearance of its own act and act a container for QGraphicsVideoItem.
it display individual scene in videoItem from begining till end.
QGraphicsView is used to visualize the scene.
QMediaPlayer is a player

[hackulius]

Great.