Qt - How to show gif(animated) image in QGraphicsPixmapItem

I am trying to use one blinking image开发者_JAVA技巧 in QGraphicsPixmapItem. The image has shown without the animation effect. The below is the original image, the following is the QGraphicsScene which uses this image in QGraphicsPixmapItem. Can anybody say how to achieve this?.

use this code

QGraphicsScene scene;
QLabel *gif_anim = new QLabel();
QMovie *movie = new QMovie(image);
gif_anim->setMovie(movie);
movie->start();
QGraphicsProxyWidget *proxy = scene.addWidget(gif_anim);