294 lines
6.3 KiB
Bash
Executable file
294 lines
6.3 KiB
Bash
Executable file
#!/bin/bash
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# SPDX-License-Identifier: Apache-2.0
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# Copyright (C) 2020-present Fewtarius
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. /etc/profile
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ES_SETTINGS="/storage/.config/emulationstation/es_settings.cfg"
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STORED_SETTINGS="/storage/.cache/audio_settings.zip"
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function save_state()
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{
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ACTIVE_DEVICE=$(get_audio_device)
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ACTIVE_PATH=$(get_es_path)
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echo "$ACTIVE_DEVICE" > /tmp/active_device.cfg
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echo "$ACTIVE_PATH" > /tmp/active_path.cfg
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cp -f /storage/.config/asound.conf /tmp
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cp -f /storage/.config/asound.state /tmp
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zip -q -j -r ${STORED_SETTINGS} /tmp/active_device.cfg /tmp/active_path.cfg /tmp/asound.*
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}
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function restore_state()
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{
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if [ -e ${STORED_SETTINGS} ]
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then
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unzip -o -q -d /tmp/ ${STORED_SETTINGS}
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STORED_DEVICE=$(cat /tmp/active_device.cfg)
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STORED_PATH=$(cat /tmp/active_path.cfg)
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mv /tmp/asound.conf /storage/.config/
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mv /tmp/asound.state /storage/.config/
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rm -f ${STORED_SETTINGS}
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set-audio esset "${STORED_PATH}"
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set-audio set "${STORED_DEVICE}"
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fi
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}
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# Check if an audio device string corresponds to a bluetooth device
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function is_bluetooth() {
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if [[ "$1" =~ ^Device.* ]]
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then
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true
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return
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else
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false
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return
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fi
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}
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function list_audio_controls() {
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IFS=""
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ACTIVE_DEVICE=$(get_audio_device)
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if is_bluetooth "${ACTIVE_DEVICE}"
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then
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CONTROLS=$(amixer -D bluealsa controls | sed -e 's#^.*name=##g' -e "s#'##g")
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else
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CONTROLS=$(amixer controls | sed -e 's#^.*name=##g' -e "s#'##g")
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fi
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echo "DEFAULT (SYSTEM PROVIDED)"
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echo "CUSTOM (UNMANAGED)"
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for CONTROL in "${CONTROLS[@]}"
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do
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echo ${CONTROL} | awk '{print $1}' | grep -v -E 'Mic|Extension|Capture|Differential|Left|Right' | uniq
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done
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echo "--------"
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for CONTROL in "${CONTROLS[@]}"
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do
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echo ${CONTROL}
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done
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}
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function list_audio_devices() {
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echo "DEFAULT (SYSTEM PROVIDED)"
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echo "DEFAULT HDMI"
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echo "CUSTOM (UNMANAGED)"
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echo "--------"
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BTACTIVE=$(systemctl is-active bluetooth)
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if [ "${BTACTIVE}" == "active" ]
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then
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BTDEVICES=$(bluetoothctl devices Paired)
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while read -r BTDEV
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do
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echo "${BTDEV}"
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done <<< "${BTDEVICES}"
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echo "--------"
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fi
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for SDEVICE in $(find /proc/asound/card*/pcm*/info)
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do
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TYPE=$(awk '/^stream:/ {print $2}' ${SDEVICE})
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if [[ "${TYPE}" =~ PLAYBACK ]]
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then
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CARD=$(awk '/^card:/ {print $2}' ${SDEVICE})
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DEVICE=$(awk '/^device:/ {print $2}' ${SDEVICE})
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NAME=$(awk '/^name:/ {print $2}' ${SDEVICE})
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echo "${NAME} (${CARD}:${DEVICE})"
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fi
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done
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}
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function set_audio_device() {
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SELECTION="$1"
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# When switching from a non-bluetooth to a bluetooth device,
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# store the last configuration in order to restore it on reboot.
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if is_bluetooth "${SELECTION}"
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then
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ACTIVE_DEVICE=$(get_audio_device)
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if ! is_bluetooth "${ACTIVE_DEVICE}"
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then
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save_state
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fi
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fi
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set_setting system.audiodevice "${SELECTION}"
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if [ "${SELECTION}" == "DEFAULT (SYSTEM PROVIDED)" ]
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then
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CARD="0"
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HWDEV="hw:${CARD},0"
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elif [ "${SELECTION}" == "DEFAULT HDMI" ]
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then
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CARD="0"
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HWDEV="hdmi"
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elif [ "${SELECTION}" == "CUSTOM (UNMANAGED)" ]
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then
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exit 0
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elif is_bluetooth "${SELECTION}"
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then
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MAC=$(echo "${SELECTION}" | awk '/^Device/ {print $2}')
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# Reconnect device in case it auto-connected.
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# This doesn't seem necessary anymore, re-activate in case of issues.
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# bluetoothctl disconnect ${MAC}
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if bluetoothctl connect ${MAC}
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then
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cp /usr/config/asound.conf.bluealsa /storage/.config/asound.conf
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set_es_path "DEFAULT (SYSTEM PROVIDED)"
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fi
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exit 0
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else
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if [ "${SELECTION}" == "--------" ]
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then
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exit 0
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fi
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for SDEVICE in $(find /proc/asound/card*/pcm*/info)
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do
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TYPE=$(awk '/^stream:/ {print $2}' ${SDEVICE})
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if [[ "${TYPE}" =~ PLAYBACK ]]
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then
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CARD=$(awk '/^card:/ {print $2}' ${SDEVICE})
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DEVICE=$(awk '/^device:/ {print $2}' ${SDEVICE})
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NAME=$(awk '/^name:/ {print $2}' ${SDEVICE})
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if [ "${SELECTION}" == "${NAME} (${CARD}:${DEVICE})" ]
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then
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HWDEV="hw:${CARD},${DEVICE}"
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fi
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fi
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done
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fi
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if [[ "${HWDEV}" =~ ^hw ]]
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then
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cat <<EOF >/storage/.config/asound.conf
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ctl.!default {
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type hw
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card ${CARD}
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}
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pcm.!default {
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type plug
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slave.pcm "softvol"
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}
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pcm.softvol {
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type softvol
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slave.pcm "dmixer"
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control {
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name "Pre-Amp"
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card ${CARD}
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}
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min_dB -5.0
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max_dB 20.0
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resolution 6
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}
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pcm.dmixer {
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type dmix
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ipc_key 1024
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slave {
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pcm "${HWDEV}"
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period_time 0
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period_size 4096
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buffer_size 131072
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rate 176400
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}
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bindings {
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0 0
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1 1
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}
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}
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EOF
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else
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cat <<EOF >/storage/.config/asound.conf
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pcm.!default {
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type plug
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slave {
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pcm "softvol"
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}
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}
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pcm.softvol {
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type softvol
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slave.pcm "dmixer"
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control {
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name "Pre-Amp"
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card ${CARD}
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}
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min_dB -5.0
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max_dB 20.0
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resolution 6
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}
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ctl.!default {
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type hw
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card ${CARD}
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}
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EOF
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fi
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}
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function set_es_path() {
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AUDIODEVICE=${1}
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if [ "${AUDIODEVICE}" == "CUSTOM (UNMANAGED)" ] || \
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[ "${AUDIODEVICE}" == "--------" ]
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then
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exit 0
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fi
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AUDIOTEST=$(grep "AudioDevice" ${ES_SETTINGS} 2>/dev/null)
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sed -i '/^.*<string name="AudioDevice".*$/d' ${ES_SETTINGS}
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if [ -e "/storage/.config/profile.d/99-mixer" ]
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then
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rm "/storage/.config/profile.d/99-mixer"
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fi
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if [ ! "${AUDIODEVICE}" = "DEFAULT (SYSTEM PROVIDED)" ]
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then
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sed -i '/^.*AudioCard.*$/a \\t<string name="AudioDevice" value="'"${AUDIODEVICE}"'" \/>' ${ES_SETTINGS}
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echo "DEVICE_AUDIO_MIXER=\"${AUDIODEVICE}\"" >/storage/.config/profile.d/99-mixer
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if [ "${DEVICE_VOLUMECTL}" = true ]
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then
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systemctl restart volume
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fi
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fi
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}
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function get_audio_device() {
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MYAUDIODEVICE=$(get_setting system.audiodevice)
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if [ ! -z "${MYAUDIODEVICE}" ]
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then
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echo ${MYAUDIODEVICE}
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else
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echo "DEFAULT (SYSTEM PROVIDED)"
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fi
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}
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function get_es_path() {
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AUDIODEVICE=$(grep AudioDevice ${ES_SETTINGS} | sed -e 's#^.*="##g' -e 's#"\ .*$##g')
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if [ -z "${AUDIODEVICE}" ]
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then
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echo "DEFAULT (SYSTEM PROVIDED)"
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else
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echo "${AUDIODEVICE}"
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fi
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}
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case $1 in
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controls)
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list_audio_controls
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;;
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list)
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list_audio_devices
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;;
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set)
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set_audio_device "$2"
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;;
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esset)
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set_es_path "$2"
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;;
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get)
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get_audio_device
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;;
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esget)
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get_es_path
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;;
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save)
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save_state
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;;
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restore)
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restore_state
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;;
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esac
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