distribution/packages/jelos/sources/autostart/common/005-alsa

#!/bin/bash
# SPDX-License-Identifier: Apache-2.0
# Copyright (C) 2021-present Fewtarius (https://github.com/fewtarius)

. /etc/profile

AUDIO_DEVICE="$(aplay -L | awk 'BEGIN{ FS=":"} /[a-z]:/ {print $1; exit}')"
if [[ "${AUDIO_DEVICE}" =~ hdmi ]]
then
  cat <<EOF >/storage/.config/asound.conf
pcm.!default {
  type plug
  slave {
    pcm "hdmi:0,0"
  }
}
ctl.!default {
  type hw
  card 0
}
EOF

if [ -e "/storage/.config/modprobe.d/alsa-base.conf" ]
then
  touch /storage/.config/modprobe.d/alsa-base.conf
  reboot
fi
else
  if [ -e "/storage/.config/modprobe.d/alsa-base.conf" ]
  then
    rm -f /storage/.config/modprobe.d/alsa-base.conf
    reboot
  fi
  cp /usr/config/asound.conf /storage/.config

  if [ ! -e "/storage/.config/asound.state" ] && [ -e /usr/config/asound.state ]
  then
    cp /usr/config/asound.state /storage/.config
  fi

  # Set the mixer in ES
  sed -i 's#<string name="AudioDevice" value="'.*'" />#<string name="AudioDevice" value="'${DEVICE_AUDIO_MIXER}'" />#' /storage/.emulationstation/es_settings.cfg

  # Initialize sound using the state if available.
  if [ -e "/storage/.config/asound.state" ]
  then
    alsactl restore -f /storage/.config/asound.state
  fi
fi

VOL=$(get_setting "audio.volume" 2>/dev/null)
amixer -M set "${DEVICE_AUDIO_MIXER}" ${VOL}%