I'm in a software engineering class in which groups of 7 students work on a software project of their choosing (very flexible - past groups have even hired contractors to help them write parts of the software). The project should take the groups 4 months to finish, and should not extend an existing project.

It's not required, but we would like to write an OSS project which hasn't been done before. We're actually have a hard time coming up with an idea of something useful, and I'm wondering if this community can suggest anything. A hot topic seems to be mobile devices, but it might be a bit difficult since none of us has a handheld. Thanks in advance.

I've never been able to find a library to handle movies, like imagemagick handles pictures.

as a web developer would be nice to be able to have console commands to convert files, or to pull out a frame of a movie, or resize, or things like that.