/*
* (C) Copyright 2014 Kurento (http://kurento.org/)
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the GNU Lesser General Public License
* (LGPL) version 2.1 which accompanies this distribution, and is available at
* http://www.gnu.org/licenses/lgpl-2.1.html
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
*/
package com.kurento.demo.webrtc;
import com.kurento.kmf.content.ContentEvent;
import com.kurento.kmf.content.WebRtcContentHandler;
import com.kurento.kmf.content.WebRtcContentService;
import com.kurento.kmf.content.WebRtcContentSession;
import com.kurento.kmf.media.MediaPipeline;
import com.kurento.kmf.media.PlateDetectorFilter;
import com.kurento.kmf.media.WebRtcEndpoint;
import com.kurento.kmf.media.events.MediaEventListener;
import com.kurento.kmf.media.events.PlateDetectedEvent;
/**
* WebRtc Handler in loopback with plate dectetor filter.
*
* @author Boni Garcia (bgarcia@gsyc.es)
* @since 4.1.2
*/
@WebRtcContentService(path = "/webRtcPlateDetector")
public class WebRtcPlateDetector extends WebRtcContentHandler {
@Override
public void onContentRequest(final WebRtcContentSession session)
throws Exception {
MediaPipeline mp = session.getMediaPipelineFactory().create();
session.releaseOnTerminate(mp);
WebRtcEndpoint webRtcEndpoint = mp.newWebRtcEndpoint().build();
PlateDetectorFilter plateDetectorFilter = mp.newPlateDetectorFilter()
.build();
session.setAttribute("plateValue", "");
plateDetectorFilter
.addPlateDetectedListener(new MediaEventListener<PlateDetectedEvent>() {
@Override
public void onEvent(PlateDetectedEvent event) {
getLogger().info("Plate detected {}", event);
if (session.getAttribute("plateValue").toString()
.equals(event.getPlate())) {
return;
}
session.setAttribute("plateValue", event.getPlate());
session.publishEvent(new ContentEvent(event.getType(),
event.getPlate()));
}
});
webRtcEndpoint.connect(plateDetectorFilter);
plateDetectorFilter.connect(webRtcEndpoint);
session.start(webRtcEndpoint);
}
}