gstreamer python binding memory leak

[neil]

Hi Stephenwei:
   Thanks for your reply very much.
   Every pipeline contains a bus by default, so I got the bus and add a
signal_watch while creating the pipelien using the following snippet.

        self.pipeline = Gst.Pipeline.new("test-pipeline")
        self.bus = self.pipeline.get_bus()
        self.bus.add_signal_watch()

   I remove the signal_watch after setting the pipeline to NULL like this:
         ret = self.pipeline.set_state(Gst.State.NULL)
        self.bus.remove_signal_watch()

   Could you tell me what do you mean to close the bus?  Thanks





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