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72 lines
2.7 KiB
Bash
Executable File
72 lines
2.7 KiB
Bash
Executable File
#!/bin/bash
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# Copyright (C) 2014 Julien Bonjean <julien@bonjean.info>
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# Copyright (C) 2014 Alexander Keller <github@nycroth.com>
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#------------------------------------------------------------------------
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# The second parameter overrides the mixer selection
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# For PulseAudio users, use "pulse"
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# For Jack/Jack2 users, use "jackplug"
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# For ALSA users, you may use "default" for your primary card
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# or you may use hw:# where # is the number of the card desired
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MIXER="default"
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[ -n "$(lsmod | grep pulse)" ] && MIXER="pulse"
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[ -n "$(lsmod | grep jack)" ] && MIXER="jackplug"
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MIXER="${2:-$MIXER}"
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# The instance option sets the control to report and configure
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# This defaults to the first control of your selected mixer
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# For a list of the available, use `amixer -D $Your_Mixer scontrols`
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SCONTROL="${BLOCK_INSTANCE:-$(amixer -D $MIXER scontrols |
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sed -n "s/Simple mixer control '\([A-Za-z ]*\)',0/\1/p" |
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head -n1
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)}"
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# The first parameter sets the step to change the volume by (and units to display)
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# This may be in in % or dB (eg. 5% or 3dB)
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STEP="${1:-5%}"
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#------------------------------------------------------------------------
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capability() { # Return "Capture" if the device is a capture device
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amixer -D $MIXER get $SCONTROL |
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sed -n "s/ Capabilities:.*cvolume.*/Capture/p"
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}
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volume() {
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amixer -D $MIXER get $SCONTROL $(capability)
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}
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format() {
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perl_filter='if (/.*\[(\d+%)\] (\[(-?\d+.\d+dB)\] )?\[(on|off)\]/)'
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perl_filter+='{CORE::say $4 eq "off" ? "MUTE" : "'
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# If dB was selected, print that instead
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perl_filter+=$([[ $STEP = *dB ]] && echo '$3' || echo '$1')
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perl_filter+='"; exit}'
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perl -ne "$perl_filter"
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}
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#------------------------------------------------------------------------
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case $BLOCK_BUTTON in
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1) ~/.bin/rofi_set_default_sink.sh ;;
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3) amixer -q -D $MIXER sset $SCONTROL $(capability) toggle ;; # right click, mute/unmute
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4) amixer -q -D $MIXER sset $SCONTROL $(capability) ${STEP}+ unmute ;; # scroll up, increase
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5) amixer -q -D $MIXER sset $SCONTROL $(capability) ${STEP}- unmute ;; # scroll down, decrease
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esac
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volume | format
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