Support other video container formats than MP4 #7354
Description
We currently only support a part of mp4 through our fork of rust-mp4: https://github.com/rerun-io/re_mp4.
It should correctly handle any kind of mp4 file, as a lot of the parsing code is a port of mp4box.js which does handle the full suite of mp4 boxes correctly, but it's mostly untested.
Container formats we may want to support in the future:
mkv/ matroskawebm