Window 下 Qt5 使用QMediaplayer 进行视频播放 流播放问题

 1 int main(int argc, char *argv[])
 2 {
 3     QApplication a(argc, argv);
 4 
 5 
 6        QWidget *widget = new QWidget;
 7         widget->resize(400, 300);   //
 8 
 9         QVBoxLayout *layout = new QVBoxLayout;
10         QMediaPlayer* player = new QMediaPlayer;
11         QVideoWidget* vw = new QVideoWidget;
12 
13         layout->addWidget(vw);
14         widget->setLayout(layout);
15 
16         player->setVideoOutput(vw);
17 
18         QFile file("123.mp4");
19         if(!file.open(QIODevice::ReadOnly))
20             qDebug() << "Could not open file";
21 
22         player->setMedia(QUrl::fromLocalFile("123.mp4"));
23         player->play();
24         widget->show();
25 
26     return a.exec();
27 }