Skip navigation
whather
whather Calculating status...
Currently Being Moderated

onPeerConnect sometimes never being called

Jun 29, 2009 8:58 PM

I have a conferencing application which uses RTMFP for video/audio and has an RTMP fallback if a client is using Flash 9 or can't connect to Stratus. I'm having problems with connecting to some users, as their onPeerConnect method never gets called after playing their netStream. I'll explain how I manage my RTMFP connections:

 

So I used to only have one publishing netstream per client which listened for connections via NetStream.Connect.Success. If it found a connection, it would then connect to the connectee's netStream. This worked flawlessly locally but had problems with some clients remotely. I then decided to switch to the listener/controller method where each client publishes two netStreams: one that only listens for incoming connections and another that publishes purely audio/video (inspired by adobe's sample apps and this site: http://www.influxis.com/seantron/StratusSessions.html). Here's how it currently works:

 

  1. Before the client enters the conference, he connects to Stratus and after hitting NetConnection.Connect.Success, he creates and publishes both a Listener stream and audio/video stream.
  2. Client then enters conference. If there are any existing users in the conference, the client plays each user's Listening stream and Audio/Video stream.
  3. The existing users in the conference should have onPeerConnect called on their listening stream, and then they immediately start playing the connecting user's Audio/Video stream. This is working perfectly locally and on a lot of remote clients, but not everyone.

 

First of all, is this the recommended/correct way to handle an RTMFP many-to-many conference? Why would a user sometimes never have their onPeerConnect called when another user plays their stream?

 

A couple of notes:

  • Yes, I do set the Listening stream's client object before I call publish().
  • The net connection sets maxPeerConnections to 16 to avoid hitting the connection limit.
  • The guy who's onPeerConnect never gets called, it works fine for him locally. Also, my onPeerConnect does get called if I'm in the conference first and he connects to me. It's always the other way around (when he's in the conference first and I connect to him) where it fails.

 

I've attached logs of one of our test conferences. Client 1 is the first in the conference, and never gets onPeerConnect called even though Client 2 and Client 3 play the stream. Although, local clients 2 and 3 connect to each other fine when joining the same conference.

 

Any clues? Thanks!

 

-Wes

Attachments:
2973 Views   4 Replies   Latest reply: AA44, Oct 27, 2010 4:25 AM
 
Replies
  • whather
    Currently Being Moderated
    1. whather,
    Jul 6, 2009 6:18 PM   in reply to whather
    Report

    So it turns out I get the same problem with Adobe's Sample Stratus Application (http://labs.adobe.com/technologies/stratus/samples/). Ben never receives my connect requests, however he successfully connects to Stratus and can successfully connect to me. It doesn't seem like this is a firewall issue on Ben's side because he can successfully connect to Stratus. Is the only way to create an RTMP fallback timer and start sending RTMP after no response after 10 seconds or so? What would cause this? Here are our logs from the Sample Stratus Application:

     

    /********************************************************

      Me trying to connect to Ben. The netstream times

      out after a minute or two and closes, hanging up the call.

    *********************************************************/

     

    MY LOGS:

    Connecting to rtmfp://stratus.adobe.com

    NetConnection event: NetConnection.Connect.Success

    Connected, my ID: ffe3ba510550c49935b10000609b94f4ae7a0ab70d66d9379c009bfd2c08ec11

    ID event: registerSuccess

    Listener event: NetStream.Publish.Start

    ID event: lookupSuccess

    Calling ben, id: e35ac5a4078360d61709acf5c83339cb9ce925d14995da9371125c981146d793

    Outgoing stream event: NetStream.Publish.Start

    NetConnection event: NetStream.Connect.Closed

    Hanging up call

    Incoming stream event: NetStream.Play.Stop

    Outgoing stream event: NetStream.Unpublish.Success

    Control event: NetStream.Play.Stop

    NetConnection event: NetStream.Connect.Closed

    Hanging up call

     

    BEN'S LOGS:

    Connecting to rtmfp://stratus.adobe.com
    NetConnection event:  NetConnection.Connect.Success
    Connected, my ID:  e35ac5a4078360d61709acf5c83339cb9ce925d14995da9371125c981146d793
    ID event:  registerSuccess
    Listener event: NetStream.Publish.Start

     

     

    /**************************************************

      Ben connects to me successfully.

    ***************************************************/

     

    MY LOGS:

    Connecting to rtmfp://stratus.adobe.com

    NetConnection event: NetConnection.Connect.Success

    Connected, my ID: 80155d3ec8ea749ea776a99bbd2b5ed8c885bbb1192a546348d820ea7b2047be

    ID event: registerSuccess

    Listener event: NetStream.Publish.Start

    NetConnection event: NetStream.Connect.Success

    Connection from: e35ac5a4078360d61709acf5c83339cb9ce925d14995da9371125c981146d793

    NetConnection event: NetStream.Connect.Success

    Connection from: e35ac5a4078360d61709acf5c83339cb9ce925d14995da9371125c981146d793

    Caller connecting to listener stream: e35ac5a4078360d61709acf5c83339cb9ce925d14995da9371125c981146d793

    Listener event: NetStream.Play.Reset

    Listener event: NetStream.Play.Start

    Incoming stream event: NetStream.Play.Reset

    Incoming stream event: NetStream.Play.Start

    Incoming call from: ben

    Outgoing stream event: NetStream.Publish.Start

     

    BEN'S LOGS:

    Connecting to rtmfp://stratus.adobe.com
    NetConnection event:  NetConnection.Connect.Success
    Connected, my ID:  e35ac5a4078360d61709acf5c83339cb9ce925d14995da9371125c981146d793
    ID event:  registerSuccess
    Listener event: NetStream.Publish.Start
    ID event:  lookupSuccess
    Calling whather, id:  80155d3ec8ea749ea776a99bbd2b5ed8c885bbb1192a546348d820ea7b2047be
    Outgoing  stream event: NetStream.Publish.Start
    NetConnection event:  NetStream.Connect.Success
    Connection from:  80155d3ec8ea749ea776a99bbd2b5ed8c885bbb1192a546348d820ea7b2047be
    Callee  connecting to media stream:  80155d3ec8ea749ea776a99bbd2b5ed8c885bbb1192a546348d820ea7b2047be
    Outgoing  stream event: NetStream.Play.Reset
    Outgoing stream event:  NetStream.Play.Start
    Control event: NetStream.Play.Reset
    Control event:  NetStream.Play.Start
    Incoming stream event:  NetStream.Play.PublishNotify
    Incoming stream event:  NetStream.Play.PublishNotify
    Call accepted by whather

     
    |
    Mark as:
  • kRizzl0r
    Currently Being Moderated
    2. kRizzl0r,
    Jul 8, 2009 5:56 PM   in reply to whather
    Report

    whather, how did you get a custom onPeerConnect() to work at all?!

     

    haven't played around with rtmfp for a few month now. i'm almost 100% certain the onPeerConnect()-thing worked back then.

    i've just looked up my old code and found that it worked with an Object with a dynamically added onPeerConnect()-function - even then it did NOT work via a separate client-class to handle things like this. (i know because i wrote a comment. unbelievable!)

     

    now it seems there is no way at all to have a custom onPeerConnect() called.. :/

     

    the only workaround seems to listen to the corresponding NetConnection instance' NetStream.Connect.Success and then check the peers via NetStream.peerStreams - that sucks because like that you have a tighter coupling between NetConnection and NetStream. in my use case i'd like to keep both apart. well well.

     

    adobe, go!

     

    -> guess it's the same issue here.

     

    cheers

     

    edit: of course i stumbled upon a strange workaround right after rambling on here.. *sigh*

     
    |
    Mark as:
  • whather
    Currently Being Moderated
    3. whather,
    Jul 9, 2009 2:16 PM   in reply to kRizzl0r
    Report

    That's not the problem I'm having. I'm getting the problem without modifying any code, just using Adobe's VideoPhone application (http://labs.adobe.com/technologies/stratus/samples/). I ran a WireShark trace on Ben's machine and I'm getting "ICMP Destination unreachable (Port unreachable)" packets when trying to connect.

     

    Packet traffic:

     

    192.168.1.100 76.74.170.51 UDP Source port: 61968  Destination port: documentum

    76.74.170.51 192.168.1.100 UDP Source port: documentum  Destination port: 61968

    192.168.1.100 76.74.170.52 UDP Source port: 61968  Destination port: documentum_s

    192.168.1.100 192.168.11.2 UDP Source port: 61968  Destination port: 61020

    192.168.1.100 192.168.56.1 UDP Source port: 61968  Destination port: 61020

    192.168.1.100 98.248.163.75 UDP Source port: 61968  Destination port: 1024

    76.74.170.52 192.168.1.100 UDP Source port: documentum_s  Destination port: 61968

    98.248.163.75 192.168.1.100 ICMP Destination unreachable (Port unreachable)

     

    Is this a firewall issue?

     
    |
    Mark as:
  • AA44
    Currently Being Moderated
    4. AA44,
    Oct 27, 2010 4:25 AM   in reply to whather
    Report

    whather,

     

    Did you manage to find the solution to this? I seem to having a similar problem. Local connections work every time, remote connections fail every time.

     

    Any idea why using a "Listener" stream helps? I simply have a stream for audio, and one for video, and as soon as one client accepts a call from the other, they both try to connect to each others publishing streams.

     

    I have no idea why waiting for onPeerConnect to execute would help.

     

    Cam

     
    |
    Mark as:
Actions

More Like This

  • Retrieving data ...

Bookmarked By (0)

Answers + Points = Status

  • 10 points awarded for Correct Answers
  • 5 points awarded for Helpful Answers
  • 10,000+ points
  • 1,001-10,000 points
  • 501-1,000 points
  • 5-500 points