adding video to points of interest on an android map app

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http://stackoverflow.com – i'm working on this project on developing an android map app that displays media(can be audio or video) at different points of interest indicated on the map.I've already added points of interests on the map app, but don't know how to go about adding video to these POIs. FYI, the app is to work as follows: As a user moves, a pointer moves along displaying the current location and if there is a point of interest nearby, a video which has been attached to that point of interest has to be displayed. Any ideas on how to add this media files to POIs? (HowTos)