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?

Only compiled languages. Don't listen to anyone who mentions Garbage collection/Functional/academic languages they will be very fast to develop but the result code will be shit and unusable for video.