[Red5] serverStreamPerformance?

[Jim Wallace]

(Forgive me if this is a repost, I thought I sent it, but it isn't in my sent folder.  Any help is appreciated.)
   
  I see you applied the patch so I got the latest from SVN and built.  It seemed to help, but still has major problems.  Now instead of pausing every couple of seconds it does this (give the code below that has three items in a playlist):  First video plays fine now, almost to the end.  Then the video stops, but audio continues.  The audio continues through to the end of the playlist.  When the audio completes, the video resume and plays to the end.
   
  Am I doing something wrong in the code below?  Does anyone else have a sample of server-side playlist (like a TV broadcast, etc.) that does work smoothly?  

  Thanks,
  jmw
  
Steven Gong <steven.gong at gmail.com> wrote:
  

  On 8/2/06, Jim Wallace <jimwattm at yahoo.com> wrote:    Here's my modified sample that creates a playlist of three items.  It works but is very choppy, pausing for several seconds serveral times.

Questions:
1) Is there anything I can do to get it to stream smoothly?  I can't use it if it can't do one stream to one client. 
  
We have got one patch from our users on Trac - #104. I am currently reviewing it. This patch can solve this jerky issue.


       TIA,
jmw


-------------------- 
package org.red5.server.webapp.test;

import org.red5.server.adapter.ApplicationAdapter;
import org.red5.server.api.IConnection;
import org.red5.server.api.IScope;
import org.red5.server.api.stream.IPlayItem ;
import org.red5.server.api.stream.IServerStream;
import org.red5.server.api.stream.IStreamCapableConnection;
import org.red5.server.api.stream.support.SimpleBandwidthConfigure;
import org.red5.server.api.stream.support.SimplePlayItem;
import org.red5.server.api.stream.support.StreamUtils;

public class Application extends ApplicationAdapter { 
    private IServerStream serverStream;
    private IScope appScope;
    
    @Override
    public boolean appStart(IScope app) {
            appScope = app;
            serverStream = StreamUtils.createServerStream (appScope, "liveX");
            SimplePlayItem item = new SimplePlayItem();
            item.setStart(0);
            item.setLength(10000);
            item.setName("on2_flash8_w_audio");
            serverStream.addItem(item);
            
            item = new SimplePlayItem();
            item.setStart(0);
            item.setLength(10000); 
            item.setName("cort1");
            serverStream.addItem(item);

            item = new SimplePlayItem();
            item.setStart(0);
            item.setLength(10000);
            item.setName("golfers");
            serverStream.addItem(item);
            
            serverStream.start();
            return true;
    }
    
    @Override
    public boolean appConnect(IConnection conn, Object[] params) {
        // Trigger calling of "onBWDone", required for some FLV players
        measureBandwidth(conn);
        if (conn instanceof IStreamCapableConnection) {
            IStreamCapableConnection streamConn = (IStreamCapableConnection) conn; 
            SimpleBandwidthConfigure sbc = new SimpleBandwidthConfigure();
            sbc.setMaxBurst(8*1024*1024);
            sbc.setBurst(8*1024*1024);
            sbc.setOverallBandwidth(2*1024*1024);
            streamConn.setBandwidthConfigure(sbc);
        }
    
    }

    @Override
    public void appDisconnect(IConnection conn) {
        if (appScope == conn.getScope()) {
            serverStream.close();
        }
        super.appDisconnect(conn);
    }

    public String test(String val){ 
        log.debug("test called on: "+getName());
        return val + val;
    }

    public Double add(Double a, Double b){
        return a + b;
    }
    public Double subtract(Double a, Double b){
        return a - b;
    }
}

  
  
  
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-- 
Best Regards
Steven Gong _______________________________________________
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