Passing stream grabbing parameter through python binding (issue/support)

[DxTa]

Hi, from README, this is clear how to pass stream grabbing parameter (e.g: stream::MaxNumBuffer) to pylonsrc.

However, through python, when using GstElement (Gst.ElementFactory.make(element_type, element_name)) to create pylonsrc gstreamer step, and then try to use set_property to set stream::MaxNumBuffer, I got an error that the key is not available.

Thus, just to check if this is expected with python binding? Or maybe I did it incorrectly.

[DxTa]

actually, if subscribe to pipeline state change, so it's possible to apply the stream parameters when the pipeline is ready