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dotfiles/.config/i3/blocks/volume

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#!/bin/bash
# Displays the default device, volume, and mute status for i3blocks
AUDIO_HIGH_SYMBOL=' '
AUDIO_MED_THRESH=59
AUDIO_MED_SYMBOL=' '
AUDIO_LOW_THRESH=0
AUDIO_LOW_SYMBOL=' '
AUDIO_MUTED_SYMBOL='X'
AUDIO_INTERVAL=5
DEFAULT_COLOR="#ffffff"
MUTED_COLOR="#a0a0a0"
LONG_FORMAT=0
SHORT_FORMAT=3
USE_PERCENT=0
USE_ALSA_NAME=0
USE_DESCRIPTION=0
SUBSCRIBE=1
while getopts F:Sf:padH:M:L:X:T:t:C:c:i:m:s:h opt; do
case "$opt" in
S) SUBSCRIBE=1 ;;
F) LONG_FORMAT="$OPTARG" ;;
f) SHORT_FORMAT="$OPTARG" ;;
p) USE_PERCENT=0 ;;
a) USE_ALSA_NAME=1 ;;
d) USE_DESCRIPTION=1 ;;
H) AUDIO_HIGH_SYMBOL="$OPTARG" ;;
M) AUDIO_MED_SYMBOL="$OPTARG" ;;
L) AUDIO_LOW_SYMBOL="$OPTARG" ;;
X) AUDIO_MUTED_SYMBOL="$OPTARG" ;;
T) AUDIO_MED_THRESH="$OPTARG" ;;
t) AUDIO_LOW_THRESH="$OPTARG" ;;
C) DEFAULT_COLOR="$OPTARG" ;;
c) MUTED_COLOR="$OPTARG" ;;
i) AUDIO_INTERVAL="$OPTARG" ;;
m) MIXER="$OPTARG" ;;
s) SCONTROL="$OPTARG" ;;
h) printf \
"Usage: volume-pulseaudio [-S] [-F format] [-f format] [-p] [-a|-d] [-H symb] [-M symb]
[-L symb] [-X symb] [-T thresh] [-t thresh] [-C color] [-c color] [-i inter]
[-m mixer] [-s scontrol] [-h]
Options:
-F, -f\tOutput format (-F long format, -f short format) to use, amongst:
\t0\t symb vol [index:name]\t (default long)
\t1\t symb vol [name]
\t2\t symb vol [index]\t (default short)
\t3\t symb vol
-S\tSubscribe to volume events (requires persistent block, always uses long format)
-p\tOmit the percent sign (%%) in volume
-a\tUse ALSA name if possible
-d\tUse device description instead of name if possible
-H\tSymbol to use when audio level is high. Default: '$AUDIO_HIGH_SYMBOL'
-M\tSymbol to use when audio level is medium. Default: '$AUDIO_MED_SYMBOL'
-L\tSymbol to use when audio level is low. Default: '$AUDIO_LOW_SYMBOL'
-X\tSymbol to use when audio is muted. Default: '$AUDIO_MUTED_SYMBOL'
-T\tThreshold for medium audio level. Default: $AUDIO_MED_THRESH
-t\tThreshold for low audio level. Default: $AUDIO_LOW_THRESH
-C\tColor for non-muted audio. Default: $DEFAULT_COLOR
-c\tColor for muted audio. Default: $MUTED_COLOR
-i\tInterval size of volume increase/decrease. Default: $AUDIO_INTERVAL
-m\tUse the given mixer.
-s\tUse the given scontrol.
-h\tShow this help text
" && exit 0;;
esac
done
if [[ -z "$MIXER" ]] ; then
MIXER="default"
if amixer -D pulse info >/dev/null 2>&1 ; then
MIXER="pulse"
fi
fi
if [[ -z "$SCONTROL" ]] ; then
SCONTROL=$(amixer -D "$MIXER" scontrols | sed -n "s/Simple mixer control '\([^']*\)',0/\1/p" | head -n1)
fi
CAPABILITY=$(amixer -D $MIXER get $SCONTROL | sed -n "s/ Capabilities:.*cvolume.*/Capture/p")
function move_sinks_to_new_default {
DEFAULT_SINK=$1
pacmd list-sink-inputs | grep index: | grep -o '[0-9]\+' | while read SINK
do
pacmd move-sink-input $SINK $DEFAULT_SINK
done
}
function set_default_playback_device_next {
inc=${1:-1}
num_devices=$(pacmd list-sinks | grep -c index:)
sink_arr=($(pacmd list-sinks | grep index: | grep -o '[0-9]\+'))
default_sink_index=$(( $(pacmd list-sinks | grep index: | grep -no '*' | grep -o '^[0-9]\+') - 1 ))
default_sink_index=$(( ($default_sink_index + $num_devices + $inc) % $num_devices ))
default_sink=${sink_arr[$default_sink_index]}
pacmd set-default-sink $default_sink
move_sinks_to_new_default $default_sink
}
case "$BLOCK_BUTTON" in
1) set_default_playback_device_next ;;
2) amixer -q -D $MIXER sset $SCONTROL $CAPABILITY toggle ;;
3) set_default_playback_device_next -1 ;;
4) amixer -q -D $MIXER sset $SCONTROL $CAPABILITY $AUDIO_INTERVAL%+ ;;
5) amixer -q -D $MIXER sset $SCONTROL $CAPABILITY $AUDIO_INTERVAL%- ;;
esac
function print_format {
PERCENT="%"
[[ $USE_PERCENT == 0 ]] && PERCENT=""
case "$1" in
1) echo "$SYMBOL$VOL$PERCENT [$NAME]" ;;
2) echo "$SYMBOL$VOL$PERCENT [$INDEX]";;
3) echo "$SYMBOL$VOL$PERCENT" ;;
*) echo "$SYMBOL$VOL$PERCENT [$INDEX:$NAME]" ;;
esac
}
function print_block {
for name in INDEX NAME VOL MUTED; do
read $name
done < <(pacmd list-sinks | grep "index:\|name:\|volume: front\|muted:" | grep -A3 '*')
INDEX=$(echo "$INDEX" | grep -o '[0-9]\+')
VOL=$(echo "$VOL" | grep -o "[0-9]*%" | head -1 )
VOL="${VOL%?}"
NAME=$(echo "$NAME" | sed \
's/.*<.*\.\(.*\)>.*/\1/; t;'\
's/.*<\(.*\)>.*/\1/; t;'\
's/.*/unknown/')
if [[ $USE_ALSA_NAME == 1 ]] ; then
ALSA_NAME=$(pacmd list-sinks |\
awk '/^\s*\*/{f=1}/^\s*index:/{f=0}f' |\
grep "alsa.name\|alsa.mixer_name" |\
head -n1 |\
sed 's/.*= "\(.*\)".*/\1/')
NAME=${ALSA_NAME:-$NAME}
elif [[ $USE_DESCRIPTION == 1 ]] ; then
DESCRIPTION=$(pacmd list-sinks |\
awk '/^\s*\*/{f=1}/^\s*index:/{f=0}f' |\
grep "device.description" |\
head -n1 |\
sed 's/.*= "\(.*\)".*/\1/')
NAME=${DESCRIPTION:-$NAME}
fi
if [[ $MUTED =~ "no" ]] ; then
SYMBOL=$AUDIO_HIGH_SYMBOL
[[ $VOL -le $AUDIO_MED_THRESH ]] && SYMBOL=$AUDIO_MED_SYMBOL
[[ $VOL -le $AUDIO_LOW_THRESH ]] && SYMBOL=$AUDIO_LOW_SYMBOL
COLOR=$DEFAULT_COLOR
else
SYMBOL=$AUDIO_MUTED_SYMBOL
COLOR=$MUTED_COLOR
VOL=""
fi
# if [[ $SUBSCRIBE == 1 ]] ; then
# print_format "$LONG_FORMAT"
# else
# print_format "$LONG_FORMAT"
print_format "$SHORT_FORMAT"
# echo "$COLOR"
# fi
}
print_block
if [[ $SUBSCRIBE == 1 ]] ; then
while read -r EVENT; do
print_block
done < <(pactl subscribe | stdbuf -oL grep change)
fi