synack
Participant
11/16/2015 at 23:56
Post count: 10
#110074

One quick way is to run a script in the background checking for the existence of a few processes. The bash script should work if you use all RetroArch emulators, and will play random mp3s in the background until a game is launched.

#!/bin/bash

while true; do

RA=$(pgrep retroarch)
ES=$(pgrep emulationstat)
M123=$(pgrep mpg123)

if [ "$RA" ]; then
  pkill mpg123
elif [ ! "$RA" ] && [ ! "$M123" ] && [ "$ES" ]; then
  mpg123 -q -Z ~/RetroPie/media/mp3/* &>/dev/null &
fi

sleep 1
done