It is a simple video player that should play one specific video till it is up date.
So the follow chart would be:
1) Read the video (path and name already define in the setups)
2) Play the video in full screem
3) At the end check by date and time if the file was update.
3A) If not got to step (2) (so repeat the video)
3B) If the video is new go to step (1)
That is simple like this.