unref the returned stream when no longer needed.
Pad.getStream
gst.stream.Stream getStream()Returns the current #GstStream for the pad, or null if none has been set yet, i.e. the pad has not received a stream-start event yet.
This is a convenience wrapper around gst.pad.Pad.getStickyEvent and gst.event.Event.parseStream.
Returns
the current #GstStream for pad, or null.