which process nautilus use to display the audio tag

[Jovial <o jovial free fr>]

hello

which process nautilus use ,to display the audio's informations in file 
property?
is it possible to call them by a bash script or a line commands?


I know some external tool like infotag ogginfo, but using them, create 
dependency in script

It will be nice to use the same process than nautilus because it run 
without problem


bye