PlayerEndpoint player = mp.newPlayerEndpoint(
"http://files.kurento.org/video/barcodes.webm").build();
session.setAttribute("player", player);
ZBarFilter zBarFilter = mp.newZBarFilter().build();
player.connect(zBarFilter);
HttpGetEndpoint httpEP = mp.newHttpGetEndpoint().terminateOnEOS()
.build();
zBarFilter.connect(httpEP);
session.start(httpEP);
session.setAttribute("eventValue", "");