Add functions to get Media (images/videos/audios) from entry description/contents

[rajjanorkar]

Just check now a days feed entries have images/videos/contents can we have few functions to extract that details?

e.g : http://sportbild.bild.de/rss/vw-startseite/vw-startseite-45028186,sort=1,view=rss2.sport.xml