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?

>>13
http://en.wikipedia.org/wiki/Stop-the-world#Stop-the-world_vs._incremental_vs._concurrent