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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Frameset//EN""http://www.w3.org/TR/REC-html40/frameset.dtd"><!--NewPage--><HTML><HEAD><!-- Generated by javadoc on Sat May 20 18:57:57 PDT 2000 --><TITLE>: Class NewReceiveStreamEvent</TITLE><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../../stylesheet.css" TITLE="Style"></HEAD><BODY BGCOLOR="white"><!-- ========== START OF NAVBAR ========== --><A NAME="navbar_top"><!-- --></A><TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0"><TR><TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"><A NAME="navbar_top_firstrow"><!-- --></A><TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3"> <TR ALIGN="center" VALIGN="top"> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../overview-summary.html"><FONT ID="NavBarFont1"><B>Overview</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT ID="NavBarFont1"><B>Package</B></FONT></A> </TD> <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT ID="NavBarFont1"><B>Tree</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../deprecated-list.html"><FONT ID="NavBarFont1"><B>Deprecated</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../index-all.html"><FONT ID="NavBarFont1"><B>Index</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../help-doc.html"><FONT ID="NavBarFont1"><B>Help</B></FONT></A> </TD> </TR></TABLE></TD><TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM></EM></TD></TR><TR><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../../javax/media/rtp/event/NewParticipantEvent.html"><B>PREV CLASS</B></A> <A HREF="../../../../javax/media/rtp/event/NewSendStreamEvent.html"><B>NEXT CLASS</B></A></FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../../index.html" TARGET="_top"><B>FRAMES</B></A> <A HREF="NewReceiveStreamEvent.html" TARGET="_top"><B>NO FRAMES</B></A></FONT></TD></TR><TR><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: INNER | <A HREF="#fields_inherited_from_class_java.util.EventObject">FIELD</A> | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#methods_inherited_from_class_javax.media.rtp.event.ReceiveStreamEvent">METHOD</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL: FIELD | <A HREF="#constructor_detail">CONSTR</A> | METHOD</FONT></TD></TR></TABLE><!-- =========== END OF NAVBAR =========== --><HR><!-- ======== START OF CLASS DATA ======== --><H2><FONT SIZE="-1">javax.media.rtp.event</FONT><BR>Class NewReceiveStreamEvent</H2><PRE>java.lang.Object | +--java.util.EventObject | +--<A HREF="../../../../javax/media/MediaEvent.html">javax.media.MediaEvent</A> | +--<A HREF="../../../../javax/media/rtp/event/RTPEvent.html">javax.media.rtp.event.RTPEvent</A> | +--<A HREF="../../../../javax/media/rtp/event/ReceiveStreamEvent.html">javax.media.rtp.event.ReceiveStreamEvent</A> | +--<B>javax.media.rtp.event.NewReceiveStreamEvent</B></PRE><HR><DL><DT>public class <B>NewReceiveStreamEvent</B><DT>extends <A HREF="../../../../javax/media/rtp/event/ReceiveStreamEvent.html">ReceiveStreamEvent</A></DL><P>Informs the RTP listener that a new stream of RTP data packets has been detected; in RTP parlance, this means that RTP data packets have been received from an SSRC that had not previously been sending data. <P> New ReceiveStreams announced with this callback may be created in one of two states. If the data packets have an SSRC that the RTPSM has already seen in RTCP control packets on this session, then the new ReceiveStream is created in the "unorphaned" state; in other words, it is permanently associated with an Participant. This Participant, whose presence would have been announced previously with the newParticipant() callback, is obtainable from the getParticipant() method in the ReceiveStream.<P> If, however, the SSRC in the data packets has never before been seen, the new ReceiveStream is created in the "orphaned" state and (as of yet) has no associated Participant; a call to getParticipant on the ReceiveStream will return null. When and if an RTCP packet arrives with the same SSRC, the CNAME contained therein will be extracted and checked against the CNAMEs of existing participants. If there is a match, than we have a case where a participant is sending a data stream with an SSRC it was not previously using; this should only happen when a participant is sending multiple streams. In this situation a recvStreamMapped() callback will be invoked by the RTPSM. If the CNAME was unrecognized then this is a case of a brand new participant, so in addition to recvStreamMapped(), RTPSM will also invoke the newParticipant() callback *before* calling recvStreamMapped(). <P><P><DL><DT><B>See Also: </B><DD><A HREF="../../../../serialized-form.html#javax.media.rtp.event.NewReceiveStreamEvent">Serialized Form</A></DL><HR><P><!-- ======== INNER CLASS SUMMARY ======== --><!-- =========== FIELD SUMMARY =========== --><A NAME="fields_inherited_from_class_java.util.EventObject"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TD><B>Fields inherited from class java.util.EventObject</B></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE>source</CODE></TD></TR></TABLE> <!-- ======== CONSTRUCTOR SUMMARY ======== --><A NAME="constructor_summary"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Constructor Summary</B></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../../javax/media/rtp/event/NewReceiveStreamEvent.html#NewReceiveStreamEvent(javax.media.rtp.SessionManager, javax.media.rtp.ReceiveStream)">NewReceiveStreamEvent</A></B>(<A HREF="../../../../javax/media/rtp/SessionManager.html">SessionManager</A> from, <A HREF="../../../../javax/media/rtp/ReceiveStream.html">ReceiveStream</A> recvStream)</CODE><BR> </TD></TR></TABLE> <!-- ========== METHOD SUMMARY =========== --><A NAME="methods_inherited_from_class_javax.media.rtp.event.ReceiveStreamEvent"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TD><B>Methods inherited from class javax.media.rtp.event.<A HREF="../../../../javax/media/rtp/event/ReceiveStreamEvent.html">ReceiveStreamEvent</A></B></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../../../../javax/media/rtp/event/ReceiveStreamEvent.html#getParticipant()">getParticipant</A>, <A HREF="../../../../javax/media/rtp/event/ReceiveStreamEvent.html#getReceiveStream()">getReceiveStream</A></CODE></TD></TR></TABLE> <A NAME="methods_inherited_from_class_javax.media.rtp.event.RTPEvent"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TD><B>Methods inherited from class javax.media.rtp.event.<A HREF="../../../../javax/media/rtp/event/RTPEvent.html">RTPEvent</A></B></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../../../../javax/media/rtp/event/RTPEvent.html#getSessionManager()">getSessionManager</A>, <A HREF="../../../../javax/media/rtp/event/RTPEvent.html#getSource()">getSource</A>, <A HREF="../../../../javax/media/rtp/event/RTPEvent.html#toString()">toString</A></CODE></TD></TR></TABLE> <A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TD><B>Methods inherited from class java.lang.Object</B></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE>clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait</CODE></TD></TR></TABLE> <P><!-- ============ FIELD DETAIL =========== --><!-- ========= CONSTRUCTOR DETAIL ======== --><A NAME="constructor_detail"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=1><FONT SIZE="+2"><B>Constructor Detail</B></FONT></TD></TR></TABLE><A NAME="NewReceiveStreamEvent(javax.media.rtp.SessionManager, javax.media.rtp.ReceiveStream)"><!-- --></A><H3>NewReceiveStreamEvent</H3><PRE>public <B>NewReceiveStreamEvent</B>(<A HREF="../../../../javax/media/rtp/SessionManager.html">SessionManager</A> from, <A HREF="../../../../javax/media/rtp/ReceiveStream.html">ReceiveStream</A> recvStream)</PRE><DL></DL><!-- ============ METHOD DETAIL ========== --><!-- ========= END OF CLASS DATA ========= --><HR><!-- ========== START OF NAVBAR ========== --><A NAME="navbar_bottom"><!-- --></A><TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0"><TR><TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"><A NAME="navbar_bottom_firstrow"><!-- --></A><TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3"> <TR ALIGN="center" VALIGN="top"> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../overview-summary.html"><FONT ID="NavBarFont1"><B>Overview</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT ID="NavBarFont1"><B>Package</B></FONT></A> </TD> <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT ID="NavBarFont1"><B>Tree</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../deprecated-list.html"><FONT ID="NavBarFont1"><B>Deprecated</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../index-all.html"><FONT ID="NavBarFont1"><B>Index</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../help-doc.html"><FONT ID="NavBarFont1"><B>Help</B></FONT></A> </TD> </TR></TABLE></TD><TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM></EM></TD></TR><TR><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../../javax/media/rtp/event/NewParticipantEvent.html"><B>PREV CLASS</B></A> <A HREF="../../../../javax/media/rtp/event/NewSendStreamEvent.html"><B>NEXT CLASS</B></A></FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../../index.html" TARGET="_top"><B>FRAMES</B></A> <A HREF="NewReceiveStreamEvent.html" TARGET="_top"><B>NO FRAMES</B></A></FONT></TD></TR><TR><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: INNER | <A HREF="#fields_inherited_from_class_java.util.EventObject">FIELD</A> | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#methods_inherited_from_class_javax.media.rtp.event.ReceiveStreamEvent">METHOD</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL: FIELD | <A HREF="#constructor_detail">CONSTR</A> | METHOD</FONT></TD></TR></TABLE><!-- =========== END OF NAVBAR =========== --><HR><font size="-1"> <a href="mailto:jmf-bugs@sun.com">Submit a bug or feature</a> <br>Copyright 1999-2000 Sun Microsystems, Inc. 901 San Antonio Road, Palo Alto, California, 94303, U.S.A. All Rights Reserved. See the <a href="spec-license.html">Specification License</a> for more details. <br>Sun, Sun Microsystems, and Java are trademarks or registered trademarks of Sun Microsystems, Inc. in the US and other countries.</font></BODY></HTML>
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