Using the current OSGi UPnP interface specification, it is quite possible to develop a DLNA compliant media server, control point or renderer. However, there are many issues in the current implementation using the Cyberlink Java library has many issues which will prevent solutions based on this implementation being compliant with the DLNA spec.
On 07/01/2011 04:57, "Kai Hackbarth" <[email protected]> wrote: >Hi all, > >the OSGi Residential Expert Group is currently collecting requirements >for the new specification. If you let us know the requirements, we can >work on an update of the UPnP specification. > >Regards, >Kai > >Am 07.01.2011 um 13:47 schrieb Francesco Furfari: > >> Dear LongkerDandy, >> >> I think the right place to ask about updates of the UPnP Specification >>is the OSGi Alliance ([email protected]) >> or the OSGi Residential Expert Group. >> >> You are right, the OSGi UPnP specification hides a number of things >>(there are pro and cons). >> Few weeks ago there was a simple request about DLNA. >> Please look at Felix-2370 issue >>(https://issues.apache.org/jira/browse/FELIX-2730) >> Which are the missing features you would like to have in a customized >>UPnP implementation? >> Please open or modify an issue and specify your requirements. >> >> Yes, the CyberlinkJava was not very active recently, but the bridge >>solves only partially the problem, in any case (for DLNA) we need a >>review of the specification. >> I don't know Cling, how much distance there is from the Cyberlink stack >>to easily design an abstraction layer. >> Another approach would be the modularization of all the UPnP stack, I >>mean the clear separation of the SOAP, GENA, and SSDP modules. >> >> Regards, >> Francesco >> >> >> >> On 06/01/2011 16.15, LongkerDandy wrote: >>> Hi >>> >>> I'm not sure this is the right place to talk about this. >>> >>> >>> I've been trying to write a Media Server, for a while. >>> Already did some code with felix, >>>(https://github.com/longkerdandy/chii2). >>> >>> I know OSGi has a UPnP standard and Felix has implement with >>>CyberlinkJava. >>> But seems the project is not very active, even it shipped with a Media >>> Server sample, it won't work. >>> >>> The fact is most devices/softwares are now compatible with DLNA. >>> And they somehow buggy may need different headers or respond. >>> >>> OSGi hide all the UPnP stack, all I can get is a device interface. >>> I think the idea behind that is a full UPnP stack supports all the >>>devices. >>> But this may not work in real world, especially the UPnP stack is not >>> actively maintained. >>> >>> Projects like PS3 Media Sever and Serviio is build from scratch. >>> Now I'm trying Cling(http://teleal.org/projects/cling), another Java >>>UPnP >>> stack. >>> >>> My thought is, >>> >>> DLNA is not as open as UPnP. >>> OSGi may also support DLNA, and let us have a real OpenSource Java DLNA >>> implementation. >>> >>> For now, can we make a bridge between UPnP driver and real UPnP stack. >>> Thus make the UPnP stack switch-able. >>> >>> Regards >>> LongkerDandy >>> >> >> > >-------------------------------------------------------------------------- >----------------------- >Kai Hackbarth · Evangelist & Chair OSGi Residential Expert Group >ProSyst Software GmbH >D-50858 Cologne, Germany . Dürener Strasse 405 >Tel. +49 (0)221 6604 410 · Fax +49 (0)221 6604 660 >Mobile +49 (0)163 6604 410 · US Mobile +1-317-6039-264 >http://www.prosyst.com · [email protected] >-------------------------------------------------------------------------- >----------------------- >stay in touch with your product. >-------------------------------------------------------------------------- >----------------------- > > > > >--------------------------------------------------------------------- >To unsubscribe, e-mail: [email protected] >For additional commands, e-mail: [email protected] > --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
