Audio level indication on OLED screen

[Nanoprod]

Hello, I am using fpp6.3 on pi4b 2g with a 128/128 OLED screen.
I would like to know how to add the audio volume value during playback. Is there a file under linux to add a line to indicate the audio volume on the OLED screen?
Thank you for your answer.

[dkulp]

No.. someone would need to update the fppoled C++ code to grab the audio level and display it there.  

[Nanoprod]

Ok,
Thank you for your answer.