Coding your own video editing software

Hello /prog/ I have a question/challenge for you:

If you had to code your own professional video editing software what programming language would you use and why? How would you do it?

Also: Would it be possible to use asm language to make editing software?

Lisp or some other decent high-level language, although >>2 would be partially right, interoperation with existing codecs would be easier in SEPPLES.

Assembly? Possibly, but it depends what features you want. If it's something like VirtualDub, it might be doable in reasonable amount of time, but if you want to make the next After Effects or some non-linear editor, probably not, unless of course, you don't want a GUI, in which case, there is already AVISynth, which is not very portable because it has huge amounts of itself written in x86 assembly.