videoplayer.py 文件源码

def __init__(self):
        super(VideoPlayerGtk3, self).__init__()
        self.uri = ""
        # gtk ui
        self.movie_window = Gtk.DrawingArea()
        self.pack_start(self.movie_window, True, True, 0)
        self.button = Gtk.Button(_("Play"))
        self.pack_start(self.button, False, True, 0)
        self.button.connect("clicked", self.on_play_clicked)
        # player
        self.player = Gst.ElementFactory.make("playbin2", "player")
        # bus stuff
        bus = self.player.get_bus()
        bus.add_signal_watch()
        bus.enable_sync_message_emission()
        bus.connect("message", self.on_message)
        # FIXME: no sync messages currently so no playing in the widget :/
        # the former appears to be not working anymore with GIR, the
        # later is not exported (introspectable=0 in the GIR)
        bus.connect("sync-message", self.on_sync_message)
        #bus.set_sync_handler(self.on_sync_message)