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Refactor audio_switch script: Pipewire and Bluetooth Connectivity #21

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Refactor audio_switch script: Pipewire and Bluetooth Connectivity #21

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8d942a1
feature: compatility with pipewire and bluetooth connection
Haletran Jun 2, 2025
6bfcc7d
fix: simplify the enable_and_connect function
Haletran Jun 2, 2025
45b953f
fix: add comment for dmenu rendering in choosespeakers function
Haletran Jun 2, 2025
1ce2016
fix: mistakes in my PR regarding useless code and bash logic
Haletran Jun 4, 2025
a648924
fix: removed my custom devices ID
Haletran Jun 4, 2025
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42 changes: 38 additions & 4 deletions dmenu_audioswitch_prev
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Original file line number Diff line number Diff line change
@@ -1,23 +1,57 @@
#!/usr/bin/env bash
# Set audio sinks before using!
# `pactl list sinks` if on pulseaudio.
# `wpctl status` if on pipewire

set_source() { \
local SINK_NAME=$1
if systemctl --user is-active pipewire; then
wpctl set-default $SINK_NAME
elif systemctl --user is-active pulseaudio; then
pacmd set-default-sink $SINK_NAME &
else
notify-send "No audio system detected. Please ensure PipeWire or PulseAudio is running."
return 1
fi
}

enable_and_connect() {
local B_NAME=$1
if [ "$(bluetoothctl show | awk '/Powered/ {print $2}')" == "no" ]; then
notify-send "Enabling Bluetooth..."
bluetoothctl power on > /dev/null
fi
local DEVICE_INDEX="$(bluetoothctl devices | cut -d ' ' -f3- | grep -nFx "$B_NAME" | cut -d ':' -f1)"
if [ -z "$DEVICE_INDEX" ]; then
notify-send "Device not found: $B_NAME"
return 1
fi
local DEVICE="$(bluetoothctl devices | head -n"$DEVICE_INDEX" | tail -n1 | cut -d ' ' -f2)"
if bluetoothctl info "$DEVICE" | grep -q "Connected: no"; then
bluetoothctl connect $DEVICE > /dev/null
fi
}

headphones () { \
pacmd set-default-sink "SET SINK NAME" &
set_source "SET SINK NAME OR DEVICE ID"
notify-send -h string:bgcolor:#a3be8c "Audio switched to headphones!"
}

speakers () { \
pacmd set-default-sink "SET SINK NAME" &
set_source "SET SINK NAME OR DEVICE ID"
notify-send -h string:bgcolor:#bf616a "Audio switched to speakers!"
}

bluetooth () { \
pacmd set-default-sink "SET SINK NAME" &
enable_and_connect "DEVICE NAME"
set_source "SET SINK NAME OR DEVICE ID"
# the source ID will change every time you connect a bluetooth device, so you may need to change this often
# might need to do a function to get the source ID or name dynamically
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@alpheratz0 alpheratz0 Jun 4, 2025

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maybe find a workaround for this? is this only a problem for pipewire users?

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@Haletran Haletran Jun 5, 2025 •
edited
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I have found a workaround for this, just need to test on both audio server. And no its for both audio server not only pipewire (the id change everytime I disabled bluetooth and re-enable it)

Here is the workaround to get the id:

get_sink_number() {
  local DEVICE_NAME="$1"

  if systemctl --user is-active pipewire >/dev/null 2>&1; then
    wpctl status | awk -v target="$DEVICE_NAME" '/Sinks:/, /Sink endpoints:/ {
      if ($2 == "*") {
        if ($4 == target) print $3
      } else {
        if ($3 == target) print $2
      }
    }' | tr -d '.'
  
  elif systemctl --user is-active pulseaudio >/dev/null 2>&1; then
    pactl list sinks | awk -v dev="$DEVICE_NAME" '
      /Sink #/ { sink = substr($2, 2) }
      $0 ~ dev { print sink; exit }
    '
  else
    notify-send "No audio system detected. Please ensure PipeWire or PulseAudio is running."
    return 1
  fi
}

And here how I plan to use it :

bluetooth () { \
  enable_and_connect "WH-1000XM4"
  local sink_num=$(get_sink_number "WH-1000XM4")
  set_source "$sink_num"
  notify-send  -h string:bgcolor:#88c0d0 "Audio switched to bluetooth!"
}

notify-send -h string:bgcolor:#88c0d0 "Audio switched to bluetooth!"
}

choosespeakers() { \
# If the script is not rendering in dmenu, remove the `-c` flag from dmenu commands.
choice=$(printf "Headphones\\nSpeakers\\nBluetooth" | dmenu -c -l 3 -i -p "Choose output: ")
case "$choice" in
Headphones) headphones;;
Expand All @@ -26,4 +60,4 @@ choosespeakers() { \
esac
}

choosespeakers
choosespeakers