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/*
* JBoss, Home of Professional Open Source
* Copyright 2011, Red Hat, Inc. and individual contributors
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software 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.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.restcomm.media.rtcp;
import java.io.Serializable;
import org.apache.log4j.Logger;
/**
*
* @author Amit Bhayani
* @author Henrique Rosa ([email protected])
*/
public class RtcpPacket implements Serializable {
private static final long serialVersionUID = -7175947723683038337L;
private static final Logger logger = Logger.getLogger(RtcpPacket.class);
/**
* Maximum number of reporting sources
*/
public static final int MAX_SOURCES = 31;
private RtcpSenderReport senderReport = null;
private RtcpReceiverReport receiverReport = null;
private RtcpSdes sdes = null;
private RtcpBye bye = null;
private RtcpAppDefined appDefined = null;
private int packetCount = 0;
private int size = 0;
public RtcpPacket() {
}
public RtcpPacket(RtcpSenderReport senderReport, RtcpReceiverReport receiverReport, RtcpSdes sdes, RtcpBye bye, RtcpAppDefined appDefined) {
this.senderReport = senderReport;
this.receiverReport = receiverReport;
this.sdes = sdes;
this.bye = bye;
this.appDefined = appDefined;
}
public RtcpPacket(RtcpReport report, RtcpSdes sdes, RtcpBye bye) {
if(report.isSender()) {
this.senderReport = (RtcpSenderReport) report;
} else {
this.receiverReport = (RtcpReceiverReport) report;
}
this.sdes = sdes;
this.bye = bye;
}
public RtcpPacket(RtcpReport report, RtcpSdes sdes) {
this(report, sdes, null);
}
public int decode(byte[] rawData, int offSet) {
// this.size = rawData.length - offSet;
this.size = 0;
while (offSet < rawData.length) {
int type = rawData[offSet + 1] & 0x000000FF;
switch (type) {
case RtcpHeader.RTCP_SR:
packetCount++;
this.senderReport = new RtcpSenderReport();
offSet = this.senderReport.decode(rawData, offSet);
this.size += this.senderReport.length;
break;
case RtcpHeader.RTCP_RR:
packetCount++;
this.receiverReport = new RtcpReceiverReport();
offSet = this.receiverReport.decode(rawData, offSet);
this.size += this.receiverReport.length;
break;
case RtcpHeader.RTCP_SDES:
packetCount++;
this.sdes = new RtcpSdes();
offSet = this.sdes.decode(rawData, offSet);
this.size += this.sdes.length;
break;
case RtcpHeader.RTCP_APP:
packetCount++;
this.appDefined = new RtcpAppDefined();
offSet = this.appDefined.decode(rawData, offSet);
this.size += this.appDefined.length;
break;
case RtcpHeader.RTCP_BYE:
packetCount++;
this.bye = new RtcpBye();
offSet = this.bye.decode(rawData, offSet);
this.size += this.bye.length;
break;
default:
logger.error("Received type = "+type+" RTCP Packet decoding falsed. offSet = "+offSet +". Packet count = "+ packetCount);
offSet = rawData.length;
break;
}
}
return offSet;
}
public int encode(byte[] rawData, int offSet) {
int initalOffSet = offSet;
if (this.senderReport != null) {
packetCount++;
offSet = this.senderReport.encode(rawData, offSet);
}
if (this.receiverReport != null) {
packetCount++;
offSet = this.receiverReport.encode(rawData, offSet);
}
if (this.sdes != null) {
packetCount++;
offSet = this.sdes.encode(rawData, offSet);
}
if (this.appDefined != null) {
packetCount++;
offSet = this.appDefined.encode(rawData, offSet);
}
if (this.bye != null) {
packetCount++;
offSet = this.bye.encode(rawData, offSet);
}
this.size = offSet - initalOffSet;
return offSet;
}
public boolean isSender() {
return this.senderReport != null;
}
public RtcpPacketType getPacketType() {
if(this.bye == null) {
return RtcpPacketType.RTCP_REPORT;
}
return RtcpPacketType.RTCP_BYE;
}
public RtcpReport getReport() {
if(isSender()) {
return this.senderReport;
}
return this.receiverReport;
}
public RtcpSenderReport getSenderReport() {
return senderReport;
}
public RtcpReceiverReport getReceiverReport() {
return receiverReport;
}
public RtcpSdes getSdes() {
return sdes;
}
public RtcpBye getBye() {
return bye;
}
public boolean hasBye() {
return this.bye != null;
}
public RtcpAppDefined getAppDefined() {
return appDefined;
}
public int getPacketCount() {
return packetCount;
}
public int getSize() {
return size;
}
@Override
public String toString() {
StringBuilder builder = new StringBuilder();
// Print RR/SR
RtcpReport report = getReport();
if(report != null) {
builder.append(report.toString());
}
// Print SDES if exists
if(this.sdes != null) {
builder.append(this.sdes.toString());
}
// Print BYE if exists
if(this.bye != null) {
builder.append(bye.toString());
}
return builder.toString();
}
}
