MACROMEDIA FLASH MEDIA SERVER 2-CLIENT-SIDE ACTIONSCRIPT LANGUAGE REFERENCE FOR FLASH MEDIA SERVER 2 Manual de usuario descargar pdf (Pagina 121)

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SERVER-SIDE ACTIONSCRIPT LANGUAGE REFERENCE FOR ADOBE MEDIA SERVER 5.0.1

Server-Side ActionScript Language Reference

Last updated 7/2/2013

Availability

Flash Media Server 4

NetStream class

There are two main use cases for the NetStream class: publishing a stream to a remote Adobe Media Server

Professional and publishing a stream to an RTMFP group.

A NetStream object is a channel inside a NetConnection object. Use the NetStream class to publish streams one-way

through a NetConnection object. Unlike a client-side NetStream object, a server-side NetStream object can only

publish streams; it cannot subscribe to a publishing stream or play a recorded stream.

Publish a stream to a remote server

Note: This use case is available in Adobe Media Server Professional.

Use the NetStream class to scale live broadcasting applications to support more clients. Adobe Media Server

Professional can support only a certain number of subscribing clients. To increase that number, you can use the

NetStream class to move traffic to remote servers while still maintaining only one client-to-server connection.

Note: To copy a stream to a remote server over RTMFP, use the following steps and pass an RTMFP protocol to the

NetConnection.connect() method.

The following steps describe the workflow for publishing a stream to a remote Adobe Media Server Professional:

1 To create a NetConnection, call the NetConnection constructor:

var nc = net NetConnection();

2 To connect to an application on a remote Adobe Media Server Professional, call the connect() method:

nc.connect("rtmp://servername/appname/appinstancename");

Note: You cannot use RTMPT, RTMPE, or RTMPTE when connecting to a remote server.

3 To create a stream over the NetConnection, call the NetStream constructor and pass the NetConnection:

var ns = new NetStream(nc);

4 To publish a stream to a remote server, call publish() and pass a name for the stream.

ns.publish("mystream");

5 To subscribe to this stream, clients connect to the same application on the remote server. To play the stream, call

the

play() method and pass the stream name. The following is client-side code:

mynetconnection.connect("rtmp://servername/appname/appinstancename");

// Check for a "NetConnection.Connect.Success" message, then call play().

mynetstream.play("mystream");

Publish a stream to an RTMFP group

Note: This use case is available in Flash Media Server 4.

The following steps describe the workflow for publishing a stream to an RTMFP group:

1 To create a NetConnection, call the NetConnection constructor:

var nc = net NetConnection();

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MACROMEDIA FLASH MEDIA SERVER 2-CLIENT-SIDE ACTIONSCRIPT LANGUAGE REFERENCE FOR FLASH MEDIA SERVER 2 Manual de usuario Pagina 121