Making a video editor application in Flash

I'm wanting to build a project, it's an online video creation software in Flash so people could upload some music, choose videos from a library, edit the whole thing and export and download a movie in the end. I've seen websites like www.Animoto.com close to what I want to do but I can't find how it's 开发者_如何学编程made and I'd like to make it a little more advanced when it come to editing.

Here is the design I'm thinking about for the flash video editor. http://dl.dropbox.com/u/1924937/video_editor%20copy.jpg Is possible to build such a video editor in Flash?

David

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The short answer is yes it's possible. Sky is the limit but this question is too general.