--- a/src/jlibrtp/RtcpPktRR.java Thu May 28 14:26:06 2009 +0200
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,222 +0,0 @@
-/**
- * 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;
-
-/**
- * RTCP packets for Receiver Reports
- *
- * @author Arne Kepp
- */
-public class RtcpPktRR extends RtcpPkt {
- /** Array of participants to send Receiver Reports to */
- protected Participant[] reportees = null;
- /** SSRC of participants the reports are for */
- protected long[] reporteeSsrc = null;// -1; //32 bits
- /** Fraction (over 256) of packets lost */
- protected int[] lossFraction = null;//-1; //8 bits
- /** Number of lost packets */
- protected int[] lostPktCount = null;//-1; //24 bits
- /** Extended highest sequence received */
- protected long[] extHighSeqRecv = null;//-1; //32 bits
- /** Interarrival jitter*/
- protected long[] interArvJitter = null;//-1; //32 bits
- /** Middle 32 bits of NTP when last SR was received */
- protected long[] timeStampLSR = null;//-1; //32 bits
- /** Delay on last SRC */
- protected long[] delaySR = null;//-1; //32 bits
-
- /**
- * Constructor for a packet with receiver reports
- *
- * @param reportees the participants on which to generate reports
- * @param ssrc the SSRC of the sender, from the RTPSession
- */
- protected RtcpPktRR(Participant[] reportees, long ssrc) {
- super.packetType = 201;
- // Fetch all the right stuff from the database
- super.ssrc = ssrc;
- this.reportees = reportees;
- }
-
-
- /**
- *
- *
- * If rcount < 0 we assume we have to parse the entire packet,
- * otherwise we'll just parse the receiver report blocks
- * (ie. the data came from a Sender Report packet)
- *
- * @param aRawPkt the byte[] with the report(s)
- * @param start where in the raw packet to start reading
- * @param rrCount the number of receiver reports, -1 if this does not come from an SR
- */
- protected RtcpPktRR(byte[] aRawPkt, int start, int rrCount) {
- //System.out.println("RtcpPktRR: " + rrCount + " start: " + start);
- super.rawPkt = aRawPkt;
-
- if(rrCount < 0 && (!super.parseHeaders(start) || packetType != 201 || super.length < 1)) {
- if(RTPSession.rtpDebugLevel > 2) {
- System.out.println(" <-> RtcpPktRR.parseHeaders() etc. problem: "+(!super.parseHeaders(start))+" "+packetType+" "+super.length);
- }
- super.problem = -201;
- }
-
- int base;
- if(rrCount > 0) {
- base = start + 28;
- } else {
- base = start + 8;
- rrCount = super.itemCount;
- super.ssrc = StaticProcs.bytesToUIntLong(aRawPkt, start + 4);
- }
-
- if(rrCount > 0) {
- reporteeSsrc = new long[rrCount];
- lossFraction = new int[rrCount];
- lostPktCount = new int[rrCount];
- extHighSeqRecv = new long[rrCount];
- interArvJitter = new long[rrCount];
- timeStampLSR = new long[rrCount];
- delaySR = new long[rrCount];
-
- for(int i=0; i<rrCount; i++ ) {
- int pos = base + i*24;
- reporteeSsrc[i] = StaticProcs.bytesToUIntLong(aRawPkt, pos);
- lossFraction[i] = (int) aRawPkt[pos + 4];
- aRawPkt[pos + 4] = (byte) 0;
- lostPktCount[i] = (int) StaticProcs.bytesToUIntLong(aRawPkt, pos + 4);
- extHighSeqRecv[i] = StaticProcs.bytesToUIntLong(aRawPkt, pos + 8);
- interArvJitter[i] = StaticProcs.bytesToUIntLong(aRawPkt, pos + 12);
- timeStampLSR[i] = StaticProcs.bytesToUIntLong(aRawPkt, pos + 16);
- delaySR[i] = StaticProcs.bytesToUIntLong(aRawPkt, pos + 20);
- }
- }
- }
-
- /**
- * Encode the packet into a byte[], saved in .rawPkt
- *
- * CompRtcpPkt will call this automatically
- */
- protected void encode() {
- if(RTPSession.rtpDebugLevel > 9) {
- System.out.println(" -> RtcpPktRR.encode()");
- }
-
- byte[] rRs = null;
- //Gather up the actual receiver reports
- if(this.reportees != null) {
- rRs = this.encodeRR();
- super.rawPkt = new byte[rRs.length + 8];
- System.arraycopy(rRs, 0, super.rawPkt, 8, rRs.length);
- super.itemCount = reportees.length;
- } else {
- super.rawPkt = new byte[8];
- super.itemCount = 0;
- }
-
- //Write the common header
- super.writeHeaders();
-
- //Add our SSRC (as sender)
- byte[] someBytes;
- someBytes = StaticProcs.uIntLongToByteWord(super.ssrc);
- System.arraycopy(someBytes, 0, super.rawPkt, 4, 4);
-
- if(RTPSession.rtpDebugLevel > 9) {
- System.out.println(" <- RtcpPktRR.encode()");
- }
-
- }
-
- /**
- * Encodes the individual Receiver Report blocks,
- *
- * so they can be used either in RR packets or appended to SR
- *
- * @return the encoded packets
- */
- protected byte[] encodeRR() {
- if(RTPSession.rtpDebugLevel > 10) {
- System.out.println(" -> RtcpPktRR.encodeRR()");
- }
- //assuming we will always create complete reports:
- byte[] ret = new byte[24*reportees.length];
-
- //Write SR stuff
- for(int i = 0; i<reportees.length; i++) {
- int offset = 24*i;
- byte[] someBytes = StaticProcs.uIntLongToByteWord(reportees[i].ssrc);
- System.arraycopy(someBytes, 0, ret, offset, 4);
-
- //Cumulative number of packets lost
- someBytes = StaticProcs.uIntLongToByteWord(reportees[i].getLostPktCount());
-
- someBytes[0] = (byte) reportees[i].getFractionLost();
-
- //Write Cumulative number of packets lost and loss fraction to packet:
- System.arraycopy(someBytes, 0, ret, 4 + offset, 4);
-
- // Extended highest sequence received
- someBytes = StaticProcs.uIntLongToByteWord(reportees[i].getExtHighSeqRecv());
- System.arraycopy(someBytes, 0, ret, 8 + offset, 4);
-
- // Interarrival jitter
- if(reportees[i].interArrivalJitter >= 0) {
- someBytes = StaticProcs.uIntLongToByteWord((long)reportees[i].interArrivalJitter);
- } else {
- someBytes = StaticProcs.uIntLongToByteWord((long) 0);
- }
- System.arraycopy(someBytes, 0, ret, 12 + offset, 4);
-
- // Timestamp last sender report received
- someBytes = StaticProcs.uIntLongToByteWord(reportees[i].timeStampLSR);
- System.arraycopy(someBytes, 0, ret, 16 + offset, 4);
-
- // Delay since last sender report received, in terms of 1/655536 s = 0.02 ms
- if(reportees[i].timeReceivedLSR > 0) {
- someBytes = StaticProcs.uIntLongToByteWord(reportees[i].delaySinceLastSR());
- } else {
- someBytes = StaticProcs.uIntLongToByteWord(0);
- }
- System.arraycopy(someBytes, 0, ret, 20 + offset, 4);
- }
- if(RTPSession.rtpDebugLevel > 10) {
- System.out.println(" <- RtcpPktRR.encodeRR()");
- }
- return ret;
- }
-
- /**
- * Debug purposes only
- */
- public void debugPrint() {
- System.out.println("RtcpPktRR.debugPrint() ");
- if(reportees != null) {
- for(int i= 0; i<reportees.length; i++) {
- Participant part = reportees[i];
- System.out.println(" part.ssrc: " + part.ssrc + " part.cname: " + part.cname);
- }
- } else {
- for(int i=0;i<reporteeSsrc.length; i++) {
- System.out.println(" reporteeSSRC: " + reporteeSsrc[i] + " timeStampLSR: " + timeStampLSR[i]);
- }
- }
- }
-}