dotfiles/home/.config/eww/scripts/volume

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2022-10-29 18:25:42 +00:00
#!/bin/bash
# Define some icons
SPEAKER_ICONS=("" "" "")
SPEAKER_MUTED_ICON=""
MIC_ICON=""
MIC_MUTED_ICON=""
# Define some helper functions for getting/setting audio data using wireplumber (wpctl)
# $1 can either be "SINK" (speaker) or "SOURCE" (microphone)
get_vol() {
wpctl get-volume "@DEFAULT_AUDIO_${1}@" | awk '{print int($2*100)}'
}
# $1 can either be "SINK" (speaker) or "SOURCE" (microphone)
# #2 is the voulme (as percentage) to set the volume to
# $3 is optional, if set, it can be '+' or '-', which then adds/decreases volume, instead of setting
set_vol() {
wpctl set-volume "@DEFAULT_AUDIO_${1}@" "$(awk -v n="$2" 'BEGIN{print (n / 100)}')$3"
}
# $1 can either be "SINK" (speaker) or "SOURCE" (microphone)
check_mute() {
wpctl get-volume "@DEFAULT_AUDIO_${1}@" | grep -i muted >/dev/null
echo $?
}
# $1 can either be "SINK" (speaker) or "SOURCE" (microphone)
toggle_mute() {
wpctl set-mute "@DEFAULT_AUDIO_${1}@" toggle
}
get_report() {
spkr_vol="$(get_vol "SINK")"
mic_vol="$(get_vol "SOURCE")"
if [ "$(check_mute "SINK")" == "0" ]; then
spkr_mute="true"
spkr_icon="$SPEAKER_MUTED_ICON"
else
spkr_mute="false"
index="$(awk -v n="$spkr_vol" -v m="${#SPEAKER_ICONS[@]}" 'BEGIN{print int(n/(100/m))}')"
# We might end up with an higher than the length of icons, if the volume is over 100%
# in this case, set the index to last icon
if [ "$index" -ge "${#SPEAKER_ICONS[@]}" ]; then
spkr_icon="${SPEAKER_ICONS[-1]}"
else
spkr_icon="${SPEAKER_ICONS[$index]}"
fi
fi
if [ "$(check_mute "SOURCE")" = "0" ]; then
mic_mute="true"
mic_icon="$MIC_MUTED_ICON"
else
mic_mute="false"
mic_icon="$MIC_ICON"
fi
echo "{ \"speaker_vol\": \"$spkr_vol\", \"speaker_mute\": $spkr_mute, \"speaker_icon\": \"$spkr_icon\", \"microphone_mute\": $mic_mute, \"microphone_vol\": \"$mic_vol\", \"microphone_icon\": \"$mic_icon\" }"
}
# Continually run and report every volume change (into stdout)
loop() {
pactl subscribe | grep --line-buffered "change" | while read -r _; do
get_report
done
}
case "$1" in
"loop")
get_report
loop
;;
"once") get_report ;;
"togglemute")
if [ "$2" != "SOURCE" ] && [ "$2" != "SINK" ]; then
>&2 echo "Invalid usage, expected second argument to be 'SINK' or 'SOURCE', got '$2'"
exit 1
fi
toggle_mute "$2"
;;
"setvol")
if [ "$2" != "SOURCE" ] && [ "$2" != "SINK" ]; then
>&2 echo "Invalid usage, expected second argument to be 'SINK' or 'SOURCE', got '$2'"
exit 1
fi
if [[ "$3" =~ ^[+-]?[0-9]*\.?[0-9]+$ ]]; then
case "$4" in
"") set_vol "$2" "$3" ;;
up|+) set_vol "$2" "$3" "+" ;;
down|-) set_vol "$2" "$3" "-" ;;
*)
>&2 echo "Invalid usage, expected fourth argument to be up/down or +/-, got '$4'"
exit 1
;;
esac
else
>&2 echo "Invalid usage, exepcted third argument to be a number, got '$3'"
exit 1
fi
;;
*)
>&2 echo "Invalid usage, argument '$1' not recognized."
exit 1
;;
esac