I am not really familiar with SimpleStaveVideo but if I remember correctly (assuming it is the class of Thibault Imbert):
ss.video
=> returns a video instance, NOT a stage video instance; That's why you can apply smoothing to it (otherwise you would get an error, there is no smoothing property on StageVideo).
For StageVideo it should be enough to set the viewPort correctly, how exactly are you resizing? Are you calling ss.resize(w, h)
?