need advice on an open source video sharing application

[eluser]ebot[/eluser]
Hello, every one,
i am about to start and open source video sharing application using code igniter, i will like
receive advice on how to work this out, like what to use and how to setup every.
i am looking to something similar to youtube functionality but very basic.
thanks for any reference and help.

[eluser]TheFuzzy0ne[/eluser]
That's quite a question. You might find you get more responses if you come up with an idea, and ask for suggestions.