I have two mp4 files, one file is alpha channel(matte key) and the other is original video, I convert them to .webm like


Everything is fine, but webm isn't supported on iOS devices, so I need to use .mov, any ideas how to convert same (mp4) files, or webm file to .mov file with alpha channel?

Good example of working .mov file (uses HEVC): https://rotato.netlify.app/alpha-demo/movie-hevc.mov

  • Check this post in the subject of HEVC with alpha. You may also look for other codecs as described here.
    – Rotem
    Mar 18 at 21:31


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