transparent video ffmpeg encoding for chrome and safari for making scroll scrubing

transparent video ffmpeg encoding for chrome and safari

ffmpeg -i "movie-prores.mov" -c:v libvpx-vp9 movie-webm.webm

<video width="600" height="100%" autoplay loop muted playsinline>
  <source 
    src="https://rotato.netlify.app/alpha-demo/movie-hevc.mov" 
    type='video/mp4; codecs="hvc1"'>
  <source 
    src="https://rotato.netlify.app/alpha-demo/movie-webm.webm" 
    type="video/webm">
</video>