video_widget.py 文件源码

def __init__(self, parent=None):
        super(VideoWidget, self).__init__(parent)

        self.setSizePolicy(QSizePolicy.Ignored, QSizePolicy.Ignored)

        p = self.palette()
        p.setColor(QPalette.Window, Qt.black)
        self.setPalette(p)

        self.setAttribute(Qt.WA_OpaquePaintEvent)