Ask Slashdot: What's The Best Place To Suggest New Open Source Software?

dryriver writes: Somebody I know has been searching up and down the internet for an open source software that can apply GPU pixel shaders (HLSL/GLSL/Cg/SweetFX) to a video and save the result out to a video file. He came up with nothing, so I said "Why not petition the open source community to create such a tool?" His reply was "Where exactly does one go to ask for a new open source software?"

So that is my question: Where on the internet can one best go to request that a new open source software tool that does not exist yet be developed? Or do open source tools only come into existence when someone -- a coder -- starts to build a software, opens the source, and invites other coders to join the fray?
This is a good place to discuss the general logistics of new open source projects -- so leave your best answers in the comments. What's the best place to suggest new open source software?

Comments

Re:Two options...

[mwvdlee]

Third options:

3: Find a project that already does something very close to what you want and who'll probably see the value of your suggestion.

I have both suggested such things to other projects and have taken on similar feature requests on my own open source projects.
If it's a good idea, it doesn't matter where it came from.

On the other hand, if you're looking for a place to dump your ideas and then expect other people to go looking for them, then why do you expect somebody to take the effort for your idea while you couldn't even be bothered with it yourself?