VirtualDub is not available for Linux but there are plenty of alternatives that runs on Linux with similar functionality. The best Linux alternative is Kdenlive, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 100 alternatives to VirtualDub and many of them are available for Linux so hopefully you can find a suitable replacement. Other interesting Linux alternatives to VirtualDub are Avidemux (Free, Open Source), Shotcut (Free, Open Source), DaVinci Resolve (Freemium) and OpenShot (Free, Open Source).
Astrofox is a free, open-source motion graphics program that lets you turn your audio into custom, shareable videos. Combine text, images, animations and effects to create stunning, unique visuals. Then generate high-definition videos to share with your fans on social media.
optimizeVideo is just a simple wrapper around ffmpeg, but that saves a lot of guessing. It analyzes the contents of a target video file, and sets the conversion parameters according to Google standards.