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White background for 4:3 slides in 16:9 video
I need to add 4:3 slides in a 16:9 video. The slides have white background, so I need to create white borders for them (to fill the 16:9 aspect ratio). I know I can create another track with solid white, but I need to set the lenght of the solid white event for each of the slide (the slides are only in some parts of the video) and thats too time consuming. Is there a quicker way?