I have avi type 2 files created either with kdenlive or kino from a firewire capture device called a Dazzle Hollywood DV Bridge. It captures at 720x480 but is there a way to stretch it so it matches my project settings of 1280x720? Is there some video effect I can apply that would do that?
The Pan and Zoom effect with greater than 100% if your source will stand it quality wise or comp over black giving letterbox appearance.
Blowing up 480 footage inside a 720 project will result in artefacts in my experience.
Edit at 480p, then render to 720p at the final stage will give you better results.