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68 lines
2.3 KiB
68 lines
2.3 KiB
4 years ago
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#!/bin/bash
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source stdlib.sh
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while getopts 'vsasp' opt ; do
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case "$opt" in
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v) verbosity=VERBOSE ;;
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q) verbosity=QUIET;;
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a) relative=ADD;;
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s) relative=SUBTRACT;;
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p) percentage=true ;;
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esac
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done
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value=${@:$OPTIND:1}
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log "value: ${value}"
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if [ -z "$value" ]; then
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error "Usage: $0 [OPTION] <volume>"
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error " -v print verbose output"
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error " -q quiet; don't print any output"
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error " -a relative; add value to current volume"
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error " -s relative; subtract value from current volume"
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error " -p interpret value as a percentage instead of an abosolute value"
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exit 1
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fi
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default_sink=`pactl info 2> >(error) | grep "Default Sink" | cut -d ' ' -f 3`
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default_sink_id=`pactl list sinks short | grep "$default_sink" | cut -f 1`
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log "default sink: #${default_sink_id}: ${default_sink}"
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if [ -n "$relative" ]; then
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if [ "$percentage" = 'true' ]; then
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current_percentage=`pactl list sinks 2> >(error) | grep '^[[:space:]]Volume:' | head -n $(( ${default_sink_id} + 1 )) | tail -n 1 | sed -e 's,.* \([0-9][0-9]*\)%.*,\1,'`
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log "current percentage: ${current_percentage}"
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value_percentage=$(echo "scale=2; "$value" / 65536 * 100" | bc 2> >(error) )
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log "value percentage: ${value_percentage}"
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if [ "$relative" = 'ADD' ]; then
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value=$((current_percentage + value ))
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elif [ "$relative" = 'SUBTRACT' ]; then
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value=$((current_percentage - value ))
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fi
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log "new percentage: ${value}"
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else
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current_volume=`pactl list sinks 2> >(error) | grep '^[[:space:]]Volume:' | head -n $(( ${default_sink_id} + 1 )) | tail -n 1 | cut -d ' ' -f 3`
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log "current volume: ${current_volume}"
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if [ "$relative" = 'ADD' ]; then
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value=$((current_volume + value))
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elif [ "$relative" = 'SUBTRACT' ]; then
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value=$((current_volume - value))
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fi
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log "new volume: ${value}"
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fi
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fi
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if [ "$percentage" = 'true' ]; then
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value=$(echo "scale=2; 65536 * ("$value" / 100)" | bc 2> >(error) )
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log "new volume: ${value}"
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fi
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value=$( printf "%.0f" "$value" 2> >(error) )
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if [ "$value" -lt 0 ]; then value=0; fi
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if [ "$value" -gt 98304 ]; then value=98304; fi
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log "rounded value: ${value}"
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pactl set-sink-volume "$default_sink" "$value" > >(log) 2> >(error)
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