ffmpegfs binary package in Ubuntu Oracular arm64

 A read-only FUSE filesystem which transcodes various audio and video formats
 to MP4, WebM, and many more on the fly when opened and read using the FFmpeg
 library, thus supporting a multitude of input formats and a variety of
 common output formats.
 .
 This allows access to a multi-media file collection with software and/or
 hardware which only understands one of the supported output formats, or
 transcodes files through simple drag-and-drop in a file browser.

Source package