how to use this sip-communicator on OSGi framwork for video calling

Hello Jerry!

> How to use this sip-communicator on OSGi framework,
such as knopflerfish
OSGi framwork, to implement video calling application!

It seems that embedding SIP-Communicator is a popular
request. I'm planning
to write up my experiences, but won't have time for the next
few weeks.
Perhaps these few pointers will be helpful:

* Build the SIP-Communicator bundle JAR files and put them
wherever
knoplerfish can find them.
* The file lib/felix.client.run.properties contains the
configuration for
the felix OSGi framework used by SIP-Communicator as
default. You'll have to
adapt it for knoplerfish. Especially important is the
configuration of which
bundles will be started automatically.
* Since you want to embed the video calling application, you
probably
already have your own GUI. You can therefore either write
your own
implementation of
net.java.sip.communicator.service.media.MediaService or
access the
net.java.sip.communicator.service.protocol.ProtocolProviderS
ervice directly.
The ProtocolProviderService allows you to get at a SIP
service
implementation, which supports the
OperationSetBasicTelephony, which allows
you to do video calls. Note however that there is currently
no GUI
integration of a received video stream. If a video stream is
received, a
window is popped up which shows the image.

Here is a code snippet which shows how to register a SIP
accound, get a SIP
service implementation and use it to start an outgoing
call.

import
net.java.sip.communicator.service.protocol.OperationFailedEx
ception;
import
net.java.sip.communicator.service.protocol.OperationSetBasic
Telephony;
import
net.java.sip.communicator.service.protocol.ProtocolNames;
import
net.java.sip.communicator.service.protocol.ProtocolProviderF
actory;
import
net.java.sip.communicator.service.protocol.ProtocolProviderS
ervice;

import org.osgi.framework.BundleActivator;
import org.osgi.framework.BundleContext;
import org.osgi.framework.InvalidSyntaxException;
import org.osgi.framework.ServiceReference;

// register the SIP account. This has to be done only once
// since the account is stored in the config file.
ServiceReference[] refs =
bundlecontext.getServiceReferences
  (ProtocolProviderFactory.class.getName(), "(" +
ProtocolProviderFactory.PROTOCOL
  + "=" + ProtocolNames.SIP + ")");
ProtocolProviderFactory factory = (ProtocolProviderFactory)

  bundlecontext.getService(refs[0]);
Map account = new HashMap();
account.put(ProtocolProviderFactory.USER_ID,
"foo");
account.put(ProtocolProviderFactory.PASSWORD,
"abc123");
account.put(ProtocolProviderFactory.DISPLAY_NAME, "Mr.
Foo");
account.put(ProtocolProviderFactory.SERVER_ADDRESS,
"sip-provider.com");
account.put(ProtocolProviderFactory.SERVER_PORT,
"5060");
factory.installAccount("My Account", account);

// Get the SIP service implementation
refs = bundlecontext.getServiceReferences
  (ProtocolProviderService.class.getName(), "(" +
ProtocolProviderFactory.PROTOCOL
  + "=" + ProtocolNames.SIP + ")");
ProtocolProviderService sip = (ProtocolProviderService)
bundlecontext.getService(refs[0]);
        
// Start an outgoing call
OperationSetBasicTelephony tel =
(OperationSetBasicTelephony)
  sip.getOperationSet(OperationSetBasicTelephony.class);
tel.createCall("sip:foobar.com");

I hope this helps.

Regards
Michael Koch