public boolean isStreaming() {
		for ( Session session : mSessions.keySet() ) {
		    if ( session != null && session.isStreaming() ) {
		    	return true;
		    } 
		}
		return false;
	}
Returns whether or not the RTSP server is streaming to some client(s).
src/net/majorkernelpanic/streaming/rtsp/RtspServer.java