Mrss "media" namespace tags not imported by FeedExpander

[Phantop]

To be more precise, see this example feed.

I'm working on a new YouTube bridge, trying to add some functionality not in the existing one while also aiming to make a less complex bridge by letting FeedExpander do most of the work. A small caveat is that the entry description is located in a media:description tag under a media:group tag.

Taking a look at the code, I noticed that the media namespace is explicitly not included, as well as this code and comment in FeedParser. I attached a diff that does allow for these elements to be picked up and added, however I'm not opening that as a PR as I'm concerned about their inclusion breaking other feeds. I'm hoping for some discussion to enable these tags to be imported.

feedparser.diff

[dvikan]

Some time ago, I tried adding parsing of media module from youtube but I failed. would be nice if we could do that

im also concerned about breaking feeds.

need also to remember that the output from FeedParser is used by AtomFormat, JsonFormat etc,

i think it's going to be hard to generically parse rss modules but we could explicitly add parsing logic only for youtube

EDIT: there are some unit tests for FeedParser, which is nice

EDIT: example of manual hand parsing of yt feed: http://www.marcogoncalves.com/parsing-media-rss-with-php-simplexml/