pyplaybin.py 文件源码

def __init__(self, win_id=None):
        """
        Builds a new GStreamer pipeline. If `win_id` is specified, it
        is used as a window ID to embed the video sink using the
        GstOverlay interface.
        """
        super().__init__()

        self._async_loop = asyncio.get_event_loop()
        self._async_response = []

        if platform.system() == 'Darwin':
            evt = threading.Event()
            error = [None]
            GObject.timeout_add(1, self._build, win_id, evt, error)
            evt.wait()
            if error[0]:
                raise PlaybinError from error[0]
        else:
            self._build(win_id, None, None)