UPNP / DIDL additional tag support

[simoncn]

What is the use case for this? Are you using a UPnP control point that can accept these elements if present? If so, which control point? Also, is this a standard mapping that other servers support? If so, which servers?

It is not clear to me how the id and type attributes are intended to be used. I would not expect 'id' to contain a value. The comments describe a 'name' attribute but this isn't present in the schema. The coments also mention chlld elements and I would expect this to be the place to put metadata values.

Although the 'desc' element is defined in the DIDL-Lite XML schema in Appendix A of the ContentDirectory spec version 1.01, I can't find it in the list of properties shown in Appendix B of this document. This makes me unsure about whether it is a standard part of UPnP.

For the above reasons, I would be very hesitant to use this element unless there is evidence and precedent for its use by other UPnP products.