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I
ivangeta
Participating Frequently
March 21, 2011
Question

Pulling a stream from external FMS and publishing in Multicast

  • March 21, 2011
  • 1 reply
  • 903 views

Hi. I'm developping a FMS 4 application that read an external stream, and then, republish it in multicast:

1.- So, first of all I open  a NetConnection to the remote application. And I associate it to a new Stream created in the application. Then I have the stream available in my application.

nc = new NetConnection();

nc.connect(REMOTE_APPLICATION);

nc.onStatus = function(info)

{

trace("REMOTE_APPLICATION->NetConnection> code: " + info.code);

if (info.code == "NetConnection.Connect.Success")

{

  rebroadcast_s = new Stream.get("tempStream");

  rebroadcast_s.onStatus = function(info)

  {

   trace("Stream> code: " + info.code);

   trace("Stream> details: " + info.details);

   if (info.code == "NetStream.Publish.Start")

   {

          trace("REMOTE_STREAM->The stream is now publishing");

  }

  };

  rebroadcast_s.play(REMOTE_STREAM, -1, -1, true, nc);

}

};

2.- I would like to use the same methods of native multicast.as application, for managing the multicast publishing: registerStream, openMulticastConnection, ...

var MULTICAST_PARAMETERS = "fms.multicast.type=2&fms.multicast.groupspec=G%3A0101210558cc3408e77326e2fa1c53c52697d73e1b02182c358c57075cd9a58ed1a25241010d160e666d732e6d756c7469636173742e6578616d706c65210e8555a813f0c73cd8f5384e0fba657163ab87e76c25b6f82be9b94777b2d52cfe00070aefff00fe7530051576706f64&fms.multicast.address=239.255.0.254%3A30000";

var params = parseQueryString(MULTICAST_PARAMETERS);

var streamContext = registerStream(CLIENT??????, MULTICAST_STREAM_NAME, params);

openMulticastConnection(streamContext);

But, I don't know who would be the client in the registerStream method. Which reference should I add there? Is it possible in this way?

I made another different script that republish that stream in localhost using NetConnection.publish(localhost/sameapplication). It works properly. But I would like to be able of managing it in the other way.

Thank you,

Iván

    This topic has been closed for replies.

    1 reply

    S
    SE_0208
    Participating Frequently
    March 22, 2011

    Even i am not sure about this - how it should work or whether it would work or not. What happens if you give client as NULL or say nc object which you are using to remote play?

    I
    ivangetaAuthor
    Participating Frequently
    March 22, 2011

    1.- Tried adding NULL, and there's an error trying to access to the properties of the parameter, and finally the multicast publication is not done:

    Registered multicast context for source stream: livestream

    Sending error message: /opt/adobe/fms/applications/vpodmulticast2/main.asc: line 308: TypeError: streamContext.client has no properties

    2.- Tried adding the nc reference, and there's no error in the logs, but the multicast publication is not done neither.

    3.- Going deeply in the code, I discovered that client object is only used for getting the client.uri (the uri where the client is publishing the stream) and the client.ip (for internal connection managing). So I created a client object with these two attributes, and It's working properly:

    var params = parseQueryString(MULTICAST_PARAMETERS);

    var client = new Object();

    client.uri = "rtmp://localhost/"+application.name;

    client.ip = "localhost";

    var streamContext = registerStream(client, MULTICAST_STREAM_NAME, params);

    openMulticastConnection(streamContext);

    Thank you,

    Iván

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