I want code to right click context menu on a file and if it is a .mp4, then convert that to a .mp3 of the same name
also include an option to play faster by +25 +33 +50 or slower by -25 -33 -50 (in a sub menu)
I understand this is different depending on your system, so answer how to do it for the people who use the same system as you
You got me curious, so I looked it up.
This isn’t a “let me google that for you”, it’s an “I’m joining you on this journey”.
https://develop.kde.org/docs/apps/dolphin/service-menus/
(KDE)
Looks like you drop a .desktop file into ~/.local/share/kio/servicemenus.
Name the file extensions, write your Exec= line, fill in a couple other details like what icon to use and what it should be called in the right-click menu, save it, and you’re done.
I imagine it’s similar in xfce.
Looks like Thunar has a “Custom Actions” feature under the Edit menu where you can get the same result.