containers.py 文件源码

def __init__(self, vlc_instance):
        # Cast this container to a c pointer to use in the callbacks
        self._opaque = ctypes.cast(ctypes.pointer(
            ctypes.py_object(self)), ctypes.c_void_p)

        # Create the vlc callbacks, these will in turn call the methods defined
        # in this container
        self.media = vlc_instance.media_new_callbacks(
            cb.CALLBACKS["read"],
            cb.CALLBACKS["open"],
            cb.CALLBACKS["seek"],
            cb.CALLBACKS["close"],
            self._opaque
        )