Re: [dLeyna] MediaServer2 spec

[Jens Georg <mail+dleyna jensge org>]

On Mi, 2012-06-20 at 14:49 +0200, Mark D Ryan wrote:
> Hi,
> 
> On Wed, 2012-06-20 at 12:20 +0200, Jens Georg wrote:
> > Hi,
> > 
> > from https://01.org/dleyna/documentation/item-objects I see that you 
> > found an issue with the org.gnome.UPnP.MediaItem2 interface. 
> > 
> > How are the semantics of the Resources property? Should you duplicate
> > the URLs in the item's URLs property, or does Resources only have the
> > additional meta-data and no URLs?
> > 
> The way things currently work is that the item's URL property only ever
> contains a single URL.  By default this is the first URL returned by the
> DMS, but it is configurable, by a call to
> com.intel.MediaServiceUPnP.Manager.SetProtocolInfo.  The other item
> properties that are transcoding dependent, e.g., the MIMEType, all have
> the correct values for this URL.

Ok, so you'd suggest to keep the "preferred" item in the global
meta-data + url (e.g. by default the non-transcoded original resource)?

Btw, the support for several URLs was never meant for different
resources but different transport layers like HTTP and RTSP

> 
> Each element in the resource array contains separate copies of all the
> item's properties that can change with transcoding, including the URL.
> Here's an example,

That makes sense.

[example]

> 
> > Just wanted to say that this spec is not set in stone, and especially
> > adding optional properties "upstream" isn't a problem.
> > 
> > For more deeper issues that can't be solved in a backwards-compatible
> > way, we can always discuss about version 3 :)
> > 
> 
> Great.  That's good to hear.  I guess the best place to discuss this
> would be on the Rygel mailing list, right?

Yes, I'd say so. CCing there.

I also noticed the *Ex() functions in
https://01.org/dleyna/documentation/server-objects. This is also
interesting in Rygel for future versions in conjunction with the fixing
of the whole "sorting in plugins" bugs (see
https://live.gnome.org/Rygel/Roadmap/OSixteen, "Sorting in plugins"
section)