FaceOverlayFilter faceOverlayFilter = mp.newFaceOverlayFilter().build();
faceOverlayFilter.setOverlayedImage(
"http://files.kurento.org/imgs/mario-wings.png", -0.35F, -1.2F,
1.6F, 1.6F);
webRtcEndpoint.connect(faceOverlayFilter);
faceOverlayFilter.connect(webRtcEndpoint);
// SDP Answer
String sdpAnswer = webRtcEndpoint.processOffer(sdpOffer);
JsonObject scParams = new JsonObject();
scParams.addProperty("sdpAnswer", sdpAnswer);