I'm creating a web version of flash, the animation software, I was considering adding video support to it, so people could import video clips and make animation

I'm creating a web version of flash, the animation software, I was considering adding video support to it, so people could import video clips and make animations on top of it. Right now I'm exporting movies using the canvas capture stream, but I'm considering using ffmpeg (js) also. Cool project, I'm gonna star it so I could use it later.