RSS Simplepie media:content url enclosure in template

[flmm]

I can not get this to work. I have a feed with a media:content element with a url in it. In the template I only need this url.

How can I get only the url.

Tried:
{$onefeed->get_content()} - gives all the content
{$onefeed->get_content()->url} - nothing
{$onefeed->get_url()} - nothing

It just does not work.

Thanks for your help.