Initial bt-audio implementation

.gitignore

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+# bt-audiopaser
+bt-audioparser/config.py
+
 # ---> Linux
 *~
 

.gitmodules

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+[submodule "bt-audioparser/report"]
+	path = bt-audioparser/report
+	url = https://git.mount-mockery.de/pylib/report.git
+[submodule "bt-audioparser/mqtt"]
+	path = bt-audioparser/mqtt
+	url = https://git.mount-mockery.de/pylib/mqtt.git

bt-audioparser/README.md

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+# Prerequires
+- Make executing user member of group systemd-journal to be able to parse the journal
+- Install python3-dev, libsystemd-dev to be able to create venv

bt-audioparser/bt-audioparser.py

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+import config
+import logging
+import mqtt
+import report
+import select
+from systemd import journal
+
+
+try:
+    from config import APP_NAME as ROOT_LOGGER_NAME
+except ImportError:
+    ROOT_LOGGER_NAME = 'root'
+logger = logging.getLogger(ROOT_LOGGER_NAME).getChild('main')
+
+
+PLAY = "New A2DP transport"
+STOP = "Closing A2DP transport"
+
+def send_state_msg_mqtt(mc, state):
+    topic = config.MQTT_TOPIC + "/state"
+    logger.info("Sending BT-Audio status information to mqtt %s = %s", topic, str(state))
+    mc.send(topic, "true" if state else "false")
+
+def send_title_msg_mqtt(mc, title):
+    topic = config.MQTT_TOPIC + "/title"
+    logger.info("Sending BT-Audio status information to mqtt %s = %s", topic, title)
+    mc.send(topic, title)
+
+
+if __name__ == "__main__":
+    report.stdoutLoggingConfigure(((config.APP_NAME, config.LOGLVL), ), fmt=config.formatter)
+
+    mc = mqtt.mqtt_client(config.APP_NAME, config.MQTT_SERVER, 1883, config.MQTT_USER, config.MQTT_PASS)
+
+    j = journal.Reader()
+    j.log_level(journal.LOG_INFO)
+    j.add_match(_SYSTEMD_UNIT="bluealsa.service")
+
+    j.seek_tail()
+    j.get_next()
+
+    playing = False
+    send_state_msg_mqtt(mc, playing)
+    while True:
+        while j.get_next():
+            for entry in j:
+                if entry['MESSAGE'] != "":
+                    if playing:
+                        if STOP in entry['MESSAGE']:
+                            playing = False
+                            send_state_msg_mqtt(mc, playing)
+                    else:
+                        if PLAY in entry['MESSAGE']:
+                            playing = True
+                            send_state_msg_mqtt(mc, playing)
+                    logger.debug(str(entry['__REALTIME_TIMESTAMP'] )+ ' ' + entry['MESSAGE'])

bt-audioparser/bt-audioparser.sh

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+#!/bin/sh
+#
+BASEPATH=`dirname $0`
+$BASEPATH/venv/bin/python $BASEPATH/bt-audioparser.py
+

bt-audioparser/config_example/config.py

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+#!/usr/bin/env python
+# -*- coding: UTF-8 -*-
+import os
+import report
+
+MQTT_USER = "<mqtt_smarthome_username>"
+MQTT_PASS = "<mqtt_smarthome_password>"
+MQTT_SERVER = "<mqtt_smarthome_hostname>"
+MQTT_TOPIC = "<mqtt_bt_audio_topic>"
+
+#
+# Logging
+#
+__BASEPATH__ = os.path.abspath(os.path.dirname(__file__))
+APP_NAME = "btaudio"
+LOGTARGET = 'stdout'   # possible choices are: 'logfile' or 'stdout'
+LOGLVL = 'INFO'
+
+LOGHOST = 'cutelog'
+LOGPORT = 19996
+
+formatter = report.SHORT_FMT

bt-audioparser/init_venv

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+#!/bin/sh
+#
+BASEPATH=`realpath $(dirname $0)`
+
+python3 -m venv $BASEPATH/venv
+$BASEPATH/venv/bin/pip install --upgrade pip
+find $BASEPATH -name requirements.txt | xargs -L 1 $BASEPATH/venv/bin/pip install -r
+$BASEPATH/venv/bin/pip list --outdated --format=json | jq -r '.[] | .name'|xargs -n1 $BASEPATH/venv/bin/pip install -U

bt-audioparser/mqtt

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+Subproject commit 328d3471a748472695a61193becdda76c7eefe69

bt-audioparser/report

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+Subproject commit b53dd30eae1d679b7eec4999bec50aed55bc105b

bt-audioparser/requirements.txt

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+systemd-python

bt-receiver/bt-pins

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+* *

bt-receiver/bt-receiver

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+#!/bin/sh -e
+#
+
+if [[ $UID != 0 ]]; then
+    echo "This script needs to be executes as root"
+    exit 13
+fi
+
+BASEPATH=$(dirname `readlink -f "$0"`)
+
+
+# Make BT discoverable:
+sudo bluetoothctl <<EOF
+power on
+agent off
+agent NoInputNoOutput
+default-agent
+discoverable on
+pairable on
+EOF
+
+# Start bt-agent
+sudo bt-agent --capability=DisplayOnly -p $BASEPATH/bt-pins