If set_caps is called in a running state, return immediately if the caps haven't changed. If the pins are already connected, disconnect them. https://bugzilla.gnome.org/show_bug.cgi?id=736926
If set_caps is called in a running state, return immediately if the caps haven't changed. If the pins are already connected, disconnect them. https://bugzilla.gnome.org/show_bug.cgi?id=736926