I am making a movie using chroma key effect. The foreground is a video taken in front of a green panel, filmed with 24 fps. Assume this video have 1000 frames.
The background is a sequence of 5 images.
generation with VSE: I wonder if it is useful the have the following reasoning: since I need only five images for my background I don't need to generate a background movie consisting of 1000 frames and where a lot of frames will be repeated.
So I generate the background movie with 1 fps (it's not the best optimization and the size of the background movie is much smaller). However since I want to "mix" these movies using chroma effect, it appears I need to have the same fps for both movies ?
generation with the compositor: A sequence of image can be provided as an input in the compositor. However in this sequence of images, it appears that one image corresponds to one frame so the problem is still there : I can't choose how long one image should last but I need to repeat a lot of times each images.
Is there a way to avoid repetitions of the background images ?