Vlc won't work with framelesswindow and transparent/translucent background in PyQt5

Question

i am making a window which plays video with vlc. Here is my code

from PyQt5 import QtWidgets,QtCore,QtGui
import vlc
class Player(QtWidgets.QMainWindow):
    def __init__(self):
        super().__init__()
        self.resize(600,400)
        self.mainframe=QtWidgets.QFrame(self)
        self.setCentralWidget(self.mainframe)
        self.mainframe.setStyleSheet("background:grey;border-radius:15px;")
        self.videoframe=QtWidgets.QFrame(self.mainframe)
        self.videoframe.setGeometry(10,10,580,380)
        self.videoframe.setStyleSheet("background:#333333")
        '''
        If i want to set transparent background and frameless window,video wont display only audio plays
        '''
        # self.setWindowFlags(
        #           QtCore.Qt.FramelessWindowHint 
        #         | QtCore.Qt.WindowStaysOnTopHint )
        # self.setAttribute(QtCore.Qt.WA_TranslucentBackground, True)
        self.instance=vlc.Instance()
        self.player = self.instance.media_player_new()
        self.player.set_hwnd(int(self.videoframe.winId()))
        media = self.instance.media_new('C:/Users/mishra/Downloads/Video/despacito.mp4')
        media.parse()
        self.player.set_media(media)
        self.player.play()
        
        
if __name__ == "__main__":
    import sys
    app = QtWidgets.QApplication(sys.argv)
    window = Player()
    window.show()
    sys.exit(app.exec_())

Answer 1

这也是 python-VLC github https://github.com/oaubert/python-vlc/issues/155 的一个问题

Answer 2

Here is a clue, maybe: I get the same issue with the actual VLC application, 3.0.16.

It happens only when I enable Qt as my interface of choice.

Sounds like it isn't a problem with your code, but with the libVLC library's use of Qt.