Hi and welcome to the forum
for ifastnet you need to contact them
IinfinityFree
FFMPEG
GETID3 - try it and see what it tells you
it is possible that a lot will need to be defined in php.ini and you do not have access to that configuration file.
Also
TOS 10, 11 Terms of Service - InfinityFree
Scripts on the site must be designed to produce web-based content, and not to use the server as an application server
All files on a domain must be part of the active website and linked to the site. Sites should not contain any backups, downloads, or other non-web based content.