Plexamp Headless on Moode 9+

[ehsan2023]

I have no idea how plexamp works but below is the code thats used to check whether its running or not

Code:

pgrep -a node | grep plexamp

This run state is checked every 3 seconds by /var/www/daemon/worker.php. If it's running then moOde displays the "Plexamp Active" overlay.

I assume a node is always running due to Plexamp service needs that for listening.

but we can check its playing status from the list of applications accessing any sound cards as per below:

pi@moodeEdifier:~ $ lsof /dev/snd/*
COMMAND    PID USER   FD   TYPE DEVICE SIZE/OFF NODE NAME
node    168284   pi  mem    CHR  116,6           463 /dev/snd/pcmC2D0p
node    168284   pi   39u   CHR  116,7      0t0  464 /dev/snd/controlC2
node    168284   pi   40u   CHR  116,6      0t0  463 /dev/snd/pcmC2D0p

As I checked it stops using them after about 13-14 seconds and ALSA is free after that.

I hope this is something usable for checking real Plexamp status.


Any suggestions? @vinnn