在Red5中测量流量

    @Override
    public void streamSubscriberStart(ISubscriberStream stream) {
    	print("streamSubscriberStart");
    	IConnection conn = Red5.getConnectionLocal();
    	conn.setAttribute("data", conn.getWrittenBytes());
    	conn.setAttribute("time", System.currentTimeMillis());
    	super.streamSubscriberStart(stream);
    }
    
    @Override
    public void streamSubscriberClose(ISubscriberStream arg0) {
    	IConnection conn = Red5.getConnectionLocal();
    	long data = conn.getWrittenBytes() - (Long) conn.getAttribute("data");
    	long time = System.currentTimeMillis() - (Long) conn.getAttribute("time");
    	print("bytes per second:" + data * 1000 / time);
    	print("streamSubscriberClose");
    	super.streamSubscriberClose(arg0);
    }