diff -r 537ddd8aa407 -r 2036ebfaccda src/jlibrtp/RTCPAppIntf.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/jlibrtp/RTCPAppIntf.java	Fri Nov 20 19:29:42 2009 +0100
@@ -0,0 +1,150 @@
+/**
+ * Java RTP Library (jlibrtp)
+ * Copyright (C) 2006 Arne Kepp
+ * 
+ * This library 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 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.
+ * 
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+package jlibrtp;
+
+/**
+ * This is the callback interface for RTCP packets.
+ * 
+ * It is optional, you do not have to register it.
+ * 
+ * If there are specific events you wish to ignore, you can simply implement
+ * empty functions.
+ * 
+ * These are all syncrhonous, make sure to return quickly or do the handling in
+ * a new thread.
+ * 
+ * @author Arne Kepp
+ */
+public interface RTCPAppIntf {
+
+	/**
+	 * This function is called whenever a Sender Report (SR) packet is received
+	 * and returns unmodified values.
+	 * 
+	 * A sender report may optionally include Receiver Reports (RR), which are
+	 * returned as arrays. Index i corresponds to the same report throughout all
+	 * of the arrays.
+	 * 
+	 * @param ssrc
+	 *            the (SR) SSRC of the sender
+	 * @param ntpHighOrder
+	 *            (SR) NTP high order
+	 * @param ntpLowOrder
+	 *            (SR) NTP low order
+	 * @param rtpTimestamp
+	 *            (SR) RTP timestamp corresponding to the NTP timestamp
+	 * @param packetCount
+	 *            (SR) Packets sent since start of session
+	 * @param octetCount
+	 *            (SR) Octets sent since start of session
+	 * @param reporteeSsrc
+	 *            (RR) SSRC of sender the receiver is reporting in
+	 * @param lossFraction
+	 *            (RR) Loss fraction, see RFC 3550
+	 * @param cumulPacketsLost
+	 *            (RR) Cumulative number of packets lost
+	 * @param extHighSeq
+	 *            (RR) Extended highest sequence RTP packet received
+	 * @param interArrivalJitter
+	 *            (RR) Interarrival jitter, see RFC 3550
+	 * @param lastSRTimeStamp
+	 *            (RR) RTP timestamp when last SR was received
+	 * @param delayLastSR
+	 *            (RR) Delay, in RTP, since last SR was received
+	 */
+	public void SRPktReceived(long ssrc, long ntpHighOrder, long ntpLowOrder,
+			long rtpTimestamp, long packetCount,
+			long octetCount,
+			// Get the receiver reports, if any
+			long[] reporteeSsrc, int[] lossFraction, int[] cumulPacketsLost,
+			long[] extHighSeq, long[] interArrivalJitter,
+			long[] lastSRTimeStamp, long[] delayLastSR);
+
+	/**
+	 * This function is called whenever a Receiver Report (SR) packet is
+	 * received and returns unmodified values.
+	 * 
+	 * A receiver report may optionally include report blocks, which are
+	 * returned as arrays. Index i corresponds to the same report throughout all
+	 * of the arrays.
+	 * 
+	 * @param reporterSsrc
+	 *            SSRC of the receiver reporting
+	 * @param reporteeSsrc
+	 *            (RR) SSRC of sender the receiver is reporting in
+	 * @param lossFraction
+	 *            (RR) Loss fraction, see RFC 3550
+	 * @param cumulPacketsLost
+	 *            (RR) Cumulative number of packets lost
+	 * @param extHighSeq
+	 *            (RR) Extended highest sequence RTP packet received
+	 * @param interArrivalJitter
+	 *            (RR) Interarrival jitter, see RFC 3550
+	 * @param lastSRTimeStamp
+	 *            (RR) RTP timestamp when last SR was received
+	 * @param delayLastSR
+	 *            (RR) Delay, in RTP, since last SR was received
+	 */
+	public void RRPktReceived(long reporterSsrc, long[] reporteeSsrc,
+			int[] lossFraction, int[] cumulPacketsLost, long[] extHighSeq,
+			long[] interArrivalJitter, long[] lastSRTimeStamp,
+			long[] delayLastSR);
+
+	/**
+	 * This function is called whenever a Source Description (SDES) packet is
+	 * received.
+	 * 
+	 * It currently returns the updated participants AFTER they have been
+	 * updated.
+	 * 
+	 * @param relevantParticipants
+	 *            participants mentioned in the SDES packet
+	 */
+	public void SDESPktReceived(Participant[] relevantParticipants);
+
+	/**
+	 * This function is called whenever a Bye (BYE) packet is received.
+	 * 
+	 * The participants will automatically be deleted from the participant
+	 * database after some time, but in the mean time the application may still
+	 * receive RTP packets from this source.
+	 * 
+	 * @param relevantParticipants
+	 *            participants whose SSRC was in the packet
+	 * @param reason
+	 *            the reason provided in the packet
+	 */
+	public void BYEPktReceived(Participant[] relevantParticipants, String reason);
+
+	/**
+	 * This function is called whenever an Application (APP) packet is received.
+	 * 
+	 * @param part
+	 *            the participant associated with the SSRC
+	 * @param subtype
+	 *            specified in the packet
+	 * @param name
+	 *            ASCII description of packet
+	 * @param data
+	 *            in the packet
+	 */
+	public void APPPktReceived(Participant part, int subtype, byte[] name,
+			byte[] data);
+}
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