summaryrefslogtreecommitdiff
path: root/.local/bin/blocks/volume-pulseaudio
blob: bf9ace109debd921e2bc3f5c952ee2a7a4f3a3ed (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
#!/bin/bash

set -a

AUDIO_HIGH_SYMBOL=${AUDIO_HIGH_SYMBOL:-''}

AUDIO_MED_THRESH=${AUDIO_MED_THRESH:-50}
AUDIO_MED_SYMBOL=${AUDIO_MED_SYMBOL:-''}

AUDIO_LOW_THRESH=${AUDIO_LOW_THRESH:-0}
AUDIO_LOW_SYMBOL=${AUDIO_LOW_SYMBOL:-''}

AUDIO_MUTED_SYMBOL=${AUDIO_MUTED_SYMBOL:-'  '}

AUDIO_DELTA=${AUDIO_DELTA:-5}

DEFAULT_COLOR=${DEFAULT_COLOR:-"#ffffff"}
MUTED_COLOR=${MUTED_COLOR:-"#a0a0a0"}

LONG_FORMAT=${LONG_FORMAT:-'${SYMB} ${VOL}% [${INDEX}:${NAME}]'}
SHORT_FORMAT=${SHORT_FORMAT:-'${SYMB} ${VOL}% [${INDEX}]'}
USE_ALSA_NAME=${USE_ALSA_NAME:-0}
USE_DESCRIPTION=${USE_DESCRIPTION:-0}

SUBSCRIBE=${SUBSCRIBE:-0}

MIXER=${MIXER:-""}
SCONTROL=${SCONTROL:-""}

while getopts F:Sf:adH: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="$OPTARG" ;;
		a) USE_ALSA_NAME=1 ;;
		d) USE_DESCRIPTION=1 ;;
		H) AUDIO_HIGH_SYMBOL="$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, with exposed variables:
\${SYMB}, \${VOL}, \${INDEX}, \${NAME}
-S\tSubscribe to volume events (requires persistent block, always uses long format)
-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_DELTA
-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_DELTA%+ ;;
	5) amixer -q -D $MIXER sset $SCONTROL $CAPABILITY $AUDIO_DELTA%- ;;
esac

function print_format {
	echo "$1" | envsubst '${SYMB}${VOL}${INDEX}${NAME}'
}

function print_block {
	ACTIVE=$(pacmd list-sinks | grep "state\: RUNNING" -B4 -A7 | grep "index:\|name:\|volume: front\|muted:")
	[ -z "$ACTIVE" ] && ACTIVE=$(pacmd list-sinks | grep "index:\|name:\|volume: front\|muted:" | grep -A3 '*')
	for name in INDEX NAME VOL MUTED; do
		read $name
	done < <(echo "$ACTIVE")
	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 [[ $MUTED =~ "no" ]] ; then
		SYMB=$AUDIO_HIGH_SYMBOL
		[[ $VOL -le $AUDIO_MED_THRESH ]] && SYMB=$AUDIO_MED_SYMBOL
		[[ $VOL -le $AUDIO_LOW_THRESH ]] && SYMB=$AUDIO_LOW_SYMBOL
		COLOR=$DEFAULT_COLOR
	else
		SYMB=$AUDIO_MUTED_SYMBOL
		COLOR=$MUTED_COLOR
	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