I have an interesting project that I'm looking at undertaking. I'm a race director for running and triathlons and we always video tape the finish line, mostly as a backup to the timing system; but now I would like to offer participants a snippet of their finish.
What I would like to do is upload a 1 hour video, where a participants enters their race number and then it returns a video containing 5 seconds before and 5 second after their finish time. I would be able to find the spot in the video based on their finish time.
How would I create that video via server side, and return to the user either an mp4 or avi?
Any ideas where to start?