/usr/lib/ruby/vendor_ruby/mime/types/video.obsolete is in ruby-mime-types 1.25-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 | *!video/dl @dl :base64 =use-instead:video/x-dl
*!video/gl @gl :base64 =use-instead:video/x-gl
*!video/vnd.dlna.mpeg-tts 'IANA,[Heredia]
|