Schema for data returned from feed API

gistfile1.js

{
  "feed" : {
    "title" : "The feed's name",
    "items" : [{
      "author" : "Author's name",
      "content" : "The full text/html content of the feed item",
      "description" : "Item synopsis",
      "media" : {
        "type" : "The MIME type of the media item",
        "url" : "URL for media resource",
        "thumbnail" : "URL for thumbail",
        "bitrate" : 'Numerical bitrate',
        "duration" : 'Numerical duration',
        "fileSize" : 'Numerical filesize',
        "height" : 'Numerical height',
        "width": "Numerical width"
      },
      "link" : "URL of the item",
      "pubDate" : "date the item was published",
      "title" : "String containing the article's title"
    }]
  }
}

How would an MRSS feed with video be represented?

I think this covers all of the MRSS properties they use. I replaced "enclosure" with "media" which can do double duty keying off of the type property.