pylover/a2dp.py

## a2dp.py
#! /usr/bin/env python3
"""Fixing bluetooth stereo headphone/headset problem in debian distros.

Workaround for bug: https://bugs.launchpad.net/ubuntu/+source/indicator-sound/+bug/1577197
Run it with python3.5 or higher after pairing/connecting the bluetooth stereo headphone.

This will be only fixes the bluez5 problem mentioned above .

Licence: Freeware

Install with:

    curl "https://gist.githubusercontent.com/pylover/d68be364adac5f946887b85e6ed6e7ae/raw/install.sh" | sh


Shorthands:

    $ alias speakers="a2dp.py 10:08:C1:44:AE:BC"
    $ alias headphones="a2dp.py 00:22:37:3D:DA:50"
    $ alias headset="a2dp.py 00:22:37:F8:A0:77 -p hsp"

    $ speakers


See ``a2dp.py -h`` for help.


Check here for updates: https://gist.github.com/pylover/d68be364adac5f946887b85e6ed6e7ae


Thanks to:

 * https://github.com/DominicWatson, for adding the ``-p/--profile`` argument.
 * https://github.com/IzzySoft, for mentioning wait before connecting again.
 * https://github.com/AmploDev, for v0.4.0
 * https://github.com/Mihara, for autodetect & autorun service
 * https://github.com/dabrovnijk, for systemd service

Change Log
----------
- 0.6.2
  * Fix program name inside the help message.

- 0.6.1
  * Fix Py warning

- 0.6.0
  * Install script

- 0.5.2
  * Increasing the number of tries to 15.

- 0.5.2
  * Optimizing waits.

- 0.5.1
  * Increasing WAIT_TIME and TRIES

- 0.5.0
  * Autodetect & autorun service

- 0.4.1
  * Sorting device list

- 0.4.0
  * Adding ignore_fail argument by @AmploDev.
  * Sending all available streams into selected sink, after successfull connection by @AmploDev.

- 0.3.3
  * Updating default sink before turning to ``off`` profile.

- 0.3.2
  * Waiting a bit: ``-w/--wait`` before connecting again.

- 0.3.0
  * Adding -p / --profile option for using the same script to switch between headset and A2DP audio profiles

- 0.2.5
  * Mentioning [mac] argument.

- 0.2.4
  * Removing duplicated devices in select device list.

- 0.2.3
  * Matching ANSI escape characters. Tested on 16.10 & 16.04

- 0.2.2
  * Some sort of code enhancements.

- 0.2.0
  * Adding `-V/--version`, `-w/--wait` and `-t/--tries` CLI arguments.

- 0.1.1
  * Supporting the `[NEW]` prefix for devices & controllers as advised by @wdullaer
  * Drying the code.

"""

import sys
import re
import asyncio
import subprocess as sb
import argparse


__version__ = '0.6.2'


HEX_DIGIT_PATTERN = '[0-9A-F]'
HEX_BYTE_PATTERN = '%s{2}' % HEX_DIGIT_PATTERN
MAC_ADDRESS_PATTERN = ':'.join((HEX_BYTE_PATTERN, ) * 6)
DEVICE_PATTERN = re.compile('^(?:.*\s)?Device\s(?P<mac>%s)\s(?P<name>.*)' % MAC_ADDRESS_PATTERN)
CONTROLLER_PATTERN = re.compile('^(?:.*\s)?Controller\s(?P<mac>%s)\s(?P<name>.*)' % MAC_ADDRESS_PATTERN)
WAIT_TIME = 2.25
TRIES = 15
PROFILE = 'a2dp'


_profiles = {
    'a2dp': 'a2dp_sink',
    'hsp': 'headset_head_unit',
    'off': 'off'
}

# CLI Arguments
parser = argparse.ArgumentParser()
parser.add_argument('-e', '--echo', action='store_true', default=False,
                    help='If given, the subprocess stdout will be also printed on stdout.')
parser.add_argument('-w', '--wait', default=WAIT_TIME, type=float,
                    help='The seconds to wait for subprocess output, default is: %s' % WAIT_TIME)
parser.add_argument('-t', '--tries', default=TRIES, type=int,
                    help='The number of tries if subprocess is failed. default is: %s' % TRIES)
parser.add_argument('-p', '--profile', default=PROFILE,
                    help='The profile to switch to. available options are: hsp, a2dp. default is: %s' % PROFILE)
parser.add_argument('-V', '--version', action='store_true', help='Show the version.')
parser.add_argument('mac', nargs='?', default=None)


# Exceptions
class SubprocessError(Exception):
    pass


class RetryExceededError(Exception):
    pass


class BluetoothctlProtocol(asyncio.SubprocessProtocol):
    def __init__(self, exit_future, echo=True):
        self.exit_future = exit_future
        self.transport = None
        self.output = None
        self.echo = echo

    def listen_output(self):
        self.output = ''

    def not_listen_output(self):
        self.output = None

    def pipe_data_received(self, fd, raw):
        d = raw.decode()
        if self.echo:
            print(d, end='')

        if self.output is not None:
            self.output += d

    def process_exited(self):
        self.exit_future.set_result(True)

    def connection_made(self, transport):
        self.transport = transport
        print('Connection MADE')

    async def send_command(self, c):
        stdin_transport = self.transport.get_pipe_transport(0)
        # noinspection PyProtectedMember
        stdin_transport._pipe.write(('%s\n' % c).encode())

    async def search_in_output(self, expression, fail_expression=None):
        if self.output is None:
            return None

        for l in self.output.splitlines():
            if fail_expression and re.search(fail_expression, l, re.IGNORECASE):
                raise SubprocessError('Expression "%s" failed with fail pattern: "%s"' % (l, fail_expression))

            if re.search(expression, l, re.IGNORECASE):
                return True

    async def send_and_wait(self, cmd, wait_expression, fail_expression='fail'):
        try:
            self.listen_output()
            await self.send_command(cmd)
            while not await self.search_in_output(wait_expression.lower(), fail_expression=fail_expression):
                await wait()
        finally:
            self.not_listen_output()

    async def disconnect(self, mac):
        print('Disconnecting the device.')
        await self.send_and_wait('disconnect %s' % ':'.join(mac), 'Successful disconnected')

    async def connect(self, mac):
        print('Connecting again.')
        await self.send_and_wait('connect %s' % ':'.join(mac), 'Connection successful')

    async def trust(self, mac):
        await self.send_and_wait('trust %s' % ':'.join(mac), 'trust succeeded')

    async def quit(self):
        await self.send_command('quit')

    async def get_list(self, command, pattern):
        result = set()
        try:
            self.listen_output()
            await self.send_command(command)
            await wait()
            for l in self.output.splitlines():
                m = pattern.match(l)
                if m:
                    result.add(m.groups())
            return sorted(list(result), key=lambda i: i[1])
        finally:
            self.not_listen_output()

    async def list_devices(self):
        return await self.get_list('devices', DEVICE_PATTERN)

    async def list_paired_devices(self):
        return await self.get_list('paired-devices', DEVICE_PATTERN)

    async def list_controllers(self):
        return await self.get_list('list', CONTROLLER_PATTERN)

    async def select_paired_device(self):
        print('Selecting device:')
        devices = await self.list_paired_devices()
        count = len(devices)

        if count < 1:
            raise SubprocessError('There is no connected device.')
        elif count == 1:
            return devices[0]

        for i, d in enumerate(devices):
            print('%d. %s %s' % (i+1, d[0], d[1]))
        print('Select device[1]:')
        selected = input()
        return devices[0 if not selected.strip() else (int(selected) - 1)]


async def wait(delay=None):
    return await asyncio.sleep(WAIT_TIME or delay)


async def execute_command(cmd, ignore_fail=False):
    p = await asyncio.create_subprocess_shell(cmd, stdout=sb.PIPE, stderr=sb.PIPE)
    stdout, stderr = await p.communicate()
    stdout, stderr = \
        stdout.decode() if stdout is not None else '', \
        stderr.decode() if stderr is not None else ''
    if p.returncode != 0 or stderr.strip() != '':
        message = 'Command: %s failed with status: %s\nstderr: %s' % (cmd, p.returncode, stderr)
        if ignore_fail:
            print('Ignoring: %s' % message)
        else:
            raise SubprocessError(message)
    return stdout


async def execute_find(cmd, pattern, tries=0, fail_safe=False):
    tries = tries or TRIES

    message = 'Cannot find `%s` using `%s`.' % (pattern, cmd)
    retry_message = message + ' Retrying %d more times'
    while True:
        stdout = await execute_command(cmd)
        match = re.search(pattern, stdout)

        if match:
            return match.group()
        elif tries > 0:
            await wait()
            print(retry_message % tries)
            tries -= 1
            continue

        if fail_safe:
            return None

        raise RetryExceededError('Retry times exceeded: %s' % message)


async def find_dev_id(mac, **kw):
    return await execute_find('pactl list cards short', 'bluez_card.%s' % '_'.join(mac), **kw)


async def find_sink(mac, **kw):
    return await execute_find('pacmd list-sinks', 'bluez_sink.%s' % '_'.join(mac), **kw)


async def set_profile(device_id, profile):
    print('Setting the %s profile' % profile)
    try:
        return await execute_command('pactl set-card-profile %s %s' % (device_id, _profiles[profile]))
    except KeyError:
        print('Invalid profile: %s, please select one one of a2dp or hsp.' % profile, file=sys.stderr)
        raise SystemExit(1)


async def set_default_sink(sink):
    print('Updating default sink to %s' % sink)
    return await execute_command('pacmd set-default-sink %s' % sink)


async def move_streams_to_sink(sink):
    streams = await execute_command('pacmd list-sink-inputs | grep "index:"', True)
    for i in streams.split():
        i = ''.join(n for n in i if n.isdigit())
        if i != '':
            print('Moving stream %s to sink' % i)
            await execute_command('pacmd move-sink-input %s %s' % (i, sink))
    return sink


async def main(args):
    global WAIT_TIME, TRIES

    if args.version:
        print(__version__)
        return 0

    mac = args.mac

    # Hacking, Changing the constants!
    WAIT_TIME = args.wait
    TRIES = args.tries

    exit_future = asyncio.Future()
    transport, protocol = await asyncio.get_event_loop().subprocess_exec(
        lambda: BluetoothctlProtocol(exit_future, echo=args.echo), 'bluetoothctl'
    )

    try:

        if mac is None:
            mac, _ = await protocol.select_paired_device()

        mac = mac.split(':' if ':' in mac else '_')
        print('Device MAC: %s' % ':'.join(mac))

        device_id = await find_dev_id(mac, fail_safe=True)
        if device_id is None:
            print('It seems device: %s is not connected yet, trying to connect.' % ':'.join(mac))
            await protocol.trust(mac)
            await protocol.connect(mac)
            device_id = await find_dev_id(mac)

        sink = await find_sink(mac, fail_safe=True)
        if sink is None:
            await set_profile(device_id, args.profile)
            sink = await find_sink(mac)

        print('Device ID: %s' % device_id)
        print('Sink: %s' % sink)

        await set_default_sink(sink)
        await wait()

        await set_profile(device_id, 'off')

        if args.profile == 'a2dp':
            await protocol.disconnect(mac)
            await wait()
            await protocol.connect(mac)

        device_id = await find_dev_id(mac)
        print('Device ID: %s' % device_id)

        await wait(2)
        await set_profile(device_id, args.profile)
        await set_default_sink(sink)
        await move_streams_to_sink(sink)

    except (SubprocessError, RetryExceededError) as ex:
        print(str(ex), file=sys.stderr)
        return 1
    finally:
        print('Exiting bluetoothctl')
        await protocol.quit()
        await exit_future

        # Close the stdout pipe
        transport.close()

    if args.profile == 'a2dp':
        print('"Enjoy" the HiFi stereo music :)')
    else:
        print('"Enjoy" your headset audio :)')


if __name__ == '__main__':
    sys.exit(asyncio.get_event_loop().run_until_complete(main(parser.parse_args())))

## fix-bt.py
#!/usr/bin/python

import dbus
from dbus.mainloop.glib import DBusGMainLoop
import gobject

import subprocess
import time

# Where you keep the above script. Must be executable, obviously.
A2DP = '/home/mihara/.local/bin/a2dp'

# A list of device IDs that you wish to run it on.
DEV_IDS = ['00:18:09:30:FC:D8','FC:58:FA:B1:2D:25']

device_paths = []
devices = []

dbus_loop = DBusGMainLoop()
bus = dbus.SystemBus(mainloop=dbus_loop)

def generate_handler(device_id):

    last_ran = [0] # WHOA, this is crazy closure behavior: A simple variable does NOT work.

    def cb(*args, **kwargs):
        if args[0] == 'org.bluez.MediaControl1':
            if args[1].get('Connected'):
                print("Connected {}".format(device_id))
                if last_ran[0] < time.time() - 120:
                    print("Fixing...")
                    subprocess.call([A2DP,device_id])
                    last_ran[0] = time.time()
            else:
                print("Disconnected {}".format(device_id))

    return cb

# Figure out the path to the headset
man = bus.get_object('org.bluez', '/')
iface = dbus.Interface(man, 'org.freedesktop.DBus.ObjectManager')
for device in iface.GetManagedObjects().keys():
    for id in DEV_IDS:
        if device.endswith(id.replace(':','_')):
            device_paths.append((id, device))

for id, device in device_paths:
    headset = bus.get_object('org.bluez', device)
    headset.connect_to_signal("PropertiesChanged", generate_handler(id), dbus_interface='org.freedesktop.DBus.Properties')
    devices.append(headset)

loop = gobject.MainLoop()
loop.run()


## fix-bt.service
[Unit]
Description=Fix BT Speaker

[Service]
Type=simple
Restart=always
ExecStart=/usr/bin/fix-bt.py

[Install]
WantedBy=multi-user.target


## install.sh
#! /usr/bin/env bash

URL="https://gist.githubusercontent.com/pylover/d68be364adac5f946887b85e6ed6e7ae/raw/a2dp.py"
TARGET=/usr/local/bin/a2dp.py

curl $URL | sudo tee ${TARGET} > /dev/null
sudo chmod +x $TARGET

echo "a2dp installation was successfull."
echo "Run a2dp.py [-h/--help] and enjoy the HiFi music!"
	#! /usr/bin/env python3
	"""Fixing bluetooth stereo headphone/headset problem in debian distros.

	Workaround for bug: https://bugs.launchpad.net/ubuntu/+source/indicator-sound/+bug/1577197
	Run it with python3.5 or higher after pairing/connecting the bluetooth stereo headphone.

	This will be only fixes the bluez5 problem mentioned above .

	Licence: Freeware

	Install with:

	curl "https://gist.githubusercontent.com/pylover/d68be364adac5f946887b85e6ed6e7ae/raw/install.sh" \| sh


	Shorthands:

	$ alias speakers="a2dp.py 10:08:C1:44:AE:BC"
	$ alias headphones="a2dp.py 00:22:37:3D:DA:50"
	$ alias headset="a2dp.py 00:22:37:F8:A0:77 -p hsp"

	$ speakers


	See ``a2dp.py -h`` for help.


	Check here for updates: https://gist.github.com/pylover/d68be364adac5f946887b85e6ed6e7ae


	Thanks to:

	* https://github.com/DominicWatson, for adding the ``-p/--profile`` argument.
	* https://github.com/IzzySoft, for mentioning wait before connecting again.
	* https://github.com/AmploDev, for v0.4.0
	* https://github.com/Mihara, for autodetect & autorun service
	* https://github.com/dabrovnijk, for systemd service

	Change Log
	----------
	- 0.6.2
	* Fix program name inside the help message.

	- 0.6.1
	* Fix Py warning

	- 0.6.0
	* Install script

	- 0.5.2
	* Increasing the number of tries to 15.

	- 0.5.2
	* Optimizing waits.

	- 0.5.1
	* Increasing WAIT_TIME and TRIES

	- 0.5.0
	* Autodetect & autorun service

	- 0.4.1
	* Sorting device list

	- 0.4.0
	* Adding ignore_fail argument by @AmploDev.
	* Sending all available streams into selected sink, after successfull connection by @AmploDev.

	- 0.3.3
	* Updating default sink before turning to ``off`` profile.

	- 0.3.2
	* Waiting a bit: ``-w/--wait`` before connecting again.

	- 0.3.0
	* Adding -p / --profile option for using the same script to switch between headset and A2DP audio profiles

	- 0.2.5
	* Mentioning [mac] argument.

	- 0.2.4
	* Removing duplicated devices in select device list.

	- 0.2.3
	* Matching ANSI escape characters. Tested on 16.10 & 16.04

	- 0.2.2
	* Some sort of code enhancements.

	- 0.2.0
	* Adding `-V/--version`, `-w/--wait` and `-t/--tries` CLI arguments.

	- 0.1.1
	* Supporting the `[NEW]` prefix for devices & controllers as advised by @wdullaer
	* Drying the code.

	"""

	import sys
	import re
	import asyncio
	import subprocess as sb
	import argparse


	__version__ = '0.6.2'


	HEX_DIGIT_PATTERN = '[0-9A-F]'
	HEX_BYTE_PATTERN = '%s{2}' % HEX_DIGIT_PATTERN
	MAC_ADDRESS_PATTERN = ':'.join((HEX_BYTE_PATTERN, ) * 6)
	DEVICE_PATTERN = re.compile('^(?:.\s)?Device\s(?P<mac>%s)\s(?P<name>.)' % MAC_ADDRESS_PATTERN)
	CONTROLLER_PATTERN = re.compile('^(?:.\s)?Controller\s(?P<mac>%s)\s(?P<name>.)' % MAC_ADDRESS_PATTERN)
	WAIT_TIME = 2.25
	TRIES = 15
	PROFILE = 'a2dp'


	_profiles = {
	'a2dp': 'a2dp_sink',
	'hsp': 'headset_head_unit',
	'off': 'off'
	}

	# CLI Arguments
	parser = argparse.ArgumentParser()
	parser.add_argument('-e', '--echo', action='store_true', default=False,
	help='If given, the subprocess stdout will be also printed on stdout.')
	parser.add_argument('-w', '--wait', default=WAIT_TIME, type=float,
	help='The seconds to wait for subprocess output, default is: %s' % WAIT_TIME)
	parser.add_argument('-t', '--tries', default=TRIES, type=int,
	help='The number of tries if subprocess is failed. default is: %s' % TRIES)
	parser.add_argument('-p', '--profile', default=PROFILE,
	help='The profile to switch to. available options are: hsp, a2dp. default is: %s' % PROFILE)
	parser.add_argument('-V', '--version', action='store_true', help='Show the version.')
	parser.add_argument('mac', nargs='?', default=None)


	# Exceptions
	class SubprocessError(Exception):
	pass


	class RetryExceededError(Exception):
	pass


	class BluetoothctlProtocol(asyncio.SubprocessProtocol):
	def __init__(self, exit_future, echo=True):
	self.exit_future = exit_future
	self.transport = None
	self.output = None
	self.echo = echo

	def listen_output(self):
	self.output = ''

	def not_listen_output(self):
	self.output = None

	def pipe_data_received(self, fd, raw):
	d = raw.decode()
	if self.echo:
	print(d, end='')

	if self.output is not None:
	self.output += d

	def process_exited(self):
	self.exit_future.set_result(True)

	def connection_made(self, transport):
	self.transport = transport
	print('Connection MADE')

	async def send_command(self, c):
	stdin_transport = self.transport.get_pipe_transport(0)
	# noinspection PyProtectedMember
	stdin_transport._pipe.write(('%s\n' % c).encode())

	async def search_in_output(self, expression, fail_expression=None):
	if self.output is None:
	return None

	for l in self.output.splitlines():
	if fail_expression and re.search(fail_expression, l, re.IGNORECASE):
	raise SubprocessError('Expression "%s" failed with fail pattern: "%s"' % (l, fail_expression))

	if re.search(expression, l, re.IGNORECASE):
	return True

	async def send_and_wait(self, cmd, wait_expression, fail_expression='fail'):
	try:
	self.listen_output()
	await self.send_command(cmd)
	while not await self.search_in_output(wait_expression.lower(), fail_expression=fail_expression):
	await wait()
	finally:
	self.not_listen_output()

	async def disconnect(self, mac):
	print('Disconnecting the device.')
	await self.send_and_wait('disconnect %s' % ':'.join(mac), 'Successful disconnected')

	async def connect(self, mac):
	print('Connecting again.')
	await self.send_and_wait('connect %s' % ':'.join(mac), 'Connection successful')

	async def trust(self, mac):
	await self.send_and_wait('trust %s' % ':'.join(mac), 'trust succeeded')

	async def quit(self):
	await self.send_command('quit')

	async def get_list(self, command, pattern):
	result = set()
	try:
	self.listen_output()
	await self.send_command(command)
	await wait()
	for l in self.output.splitlines():
	m = pattern.match(l)
	if m:
	result.add(m.groups())
	return sorted(list(result), key=lambda i: i[1])
	finally:
	self.not_listen_output()

	async def list_devices(self):
	return await self.get_list('devices', DEVICE_PATTERN)

	async def list_paired_devices(self):
	return await self.get_list('paired-devices', DEVICE_PATTERN)

	async def list_controllers(self):
	return await self.get_list('list', CONTROLLER_PATTERN)

	async def select_paired_device(self):
	print('Selecting device:')
	devices = await self.list_paired_devices()
	count = len(devices)

	if count < 1:
	raise SubprocessError('There is no connected device.')
	elif count == 1:
	return devices[0]

	for i, d in enumerate(devices):
	print('%d. %s %s' % (i+1, d[0], d[1]))
	print('Select device[1]:')
	selected = input()
	return devices[0 if not selected.strip() else (int(selected) - 1)]


	async def wait(delay=None):
	return await asyncio.sleep(WAIT_TIME or delay)


	async def execute_command(cmd, ignore_fail=False):
	p = await asyncio.create_subprocess_shell(cmd, stdout=sb.PIPE, stderr=sb.PIPE)
	stdout, stderr = await p.communicate()
	stdout, stderr = \
	stdout.decode() if stdout is not None else '', \
	stderr.decode() if stderr is not None else ''
	if p.returncode != 0 or stderr.strip() != '':
	message = 'Command: %s failed with status: %s\nstderr: %s' % (cmd, p.returncode, stderr)
	if ignore_fail:
	print('Ignoring: %s' % message)
	else:
	raise SubprocessError(message)
	return stdout


	async def execute_find(cmd, pattern, tries=0, fail_safe=False):
	tries = tries or TRIES

	message = 'Cannot find `%s` using `%s`.' % (pattern, cmd)
	retry_message = message + ' Retrying %d more times'
	while True:
	stdout = await execute_command(cmd)
	match = re.search(pattern, stdout)

	if match:
	return match.group()
	elif tries > 0:
	await wait()
	print(retry_message % tries)
	tries -= 1
	continue

	if fail_safe:
	return None

	raise RetryExceededError('Retry times exceeded: %s' % message)


	async def find_dev_id(mac, **kw):
	return await execute_find('pactl list cards short', 'bluez_card.%s' % '_'.join(mac), **kw)


	async def find_sink(mac, **kw):
	return await execute_find('pacmd list-sinks', 'bluez_sink.%s' % '_'.join(mac), **kw)


	async def set_profile(device_id, profile):
	print('Setting the %s profile' % profile)
	try:
	return await execute_command('pactl set-card-profile %s %s' % (device_id, _profiles[profile]))
	except KeyError:
	print('Invalid profile: %s, please select one one of a2dp or hsp.' % profile, file=sys.stderr)
	raise SystemExit(1)


	async def set_default_sink(sink):
	print('Updating default sink to %s' % sink)
	return await execute_command('pacmd set-default-sink %s' % sink)


	async def move_streams_to_sink(sink):
	streams = await execute_command('pacmd list-sink-inputs \| grep "index:"', True)
	for i in streams.split():
	i = ''.join(n for n in i if n.isdigit())
	if i != '':
	print('Moving stream %s to sink' % i)
	await execute_command('pacmd move-sink-input %s %s' % (i, sink))
	return sink


	async def main(args):
	global WAIT_TIME, TRIES

	if args.version:
	print(__version__)
	return 0

	mac = args.mac

	# Hacking, Changing the constants!
	WAIT_TIME = args.wait
	TRIES = args.tries

	exit_future = asyncio.Future()
	transport, protocol = await asyncio.get_event_loop().subprocess_exec(
	lambda: BluetoothctlProtocol(exit_future, echo=args.echo), 'bluetoothctl'
	)

	try:

	if mac is None:
	mac, _ = await protocol.select_paired_device()

	mac = mac.split(':' if ':' in mac else '_')
	print('Device MAC: %s' % ':'.join(mac))

	device_id = await find_dev_id(mac, fail_safe=True)
	if device_id is None:
	print('It seems device: %s is not connected yet, trying to connect.' % ':'.join(mac))
	await protocol.trust(mac)
	await protocol.connect(mac)
	device_id = await find_dev_id(mac)

	sink = await find_sink(mac, fail_safe=True)
	if sink is None:
	await set_profile(device_id, args.profile)
	sink = await find_sink(mac)

	print('Device ID: %s' % device_id)
	print('Sink: %s' % sink)

	await set_default_sink(sink)
	await wait()

	await set_profile(device_id, 'off')

	if args.profile == 'a2dp':
	await protocol.disconnect(mac)
	await wait()
	await protocol.connect(mac)

	device_id = await find_dev_id(mac)
	print('Device ID: %s' % device_id)

	await wait(2)
	await set_profile(device_id, args.profile)
	await set_default_sink(sink)
	await move_streams_to_sink(sink)

	except (SubprocessError, RetryExceededError) as ex:
	print(str(ex), file=sys.stderr)
	return 1
	finally:
	print('Exiting bluetoothctl')
	await protocol.quit()
	await exit_future

	# Close the stdout pipe
	transport.close()

	if args.profile == 'a2dp':
	print('"Enjoy" the HiFi stereo music :)')
	else:
	print('"Enjoy" your headset audio :)')


	if __name__ == '__main__':
	sys.exit(asyncio.get_event_loop().run_until_complete(main(parser.parse_args())))
	#!/usr/bin/python

	import dbus
	from dbus.mainloop.glib import DBusGMainLoop
	import gobject

	import subprocess
	import time

	# Where you keep the above script. Must be executable, obviously.
	A2DP = '/home/mihara/.local/bin/a2dp'

	# A list of device IDs that you wish to run it on.
	DEV_IDS = ['00:18:09:30:FC:D8','FC:58:FA:B1:2D:25']

	device_paths = []
	devices = []

	dbus_loop = DBusGMainLoop()
	bus = dbus.SystemBus(mainloop=dbus_loop)

	def generate_handler(device_id):

	last_ran = [0] # WHOA, this is crazy closure behavior: A simple variable does NOT work.

	def cb(args, *kwargs):
	if args[0] == 'org.bluez.MediaControl1':
	if args[1].get('Connected'):
	print("Connected {}".format(device_id))
	if last_ran[0] < time.time() - 120:
	print("Fixing...")
	subprocess.call([A2DP,device_id])
	last_ran[0] = time.time()
	else:
	print("Disconnected {}".format(device_id))

	return cb

	# Figure out the path to the headset
	man = bus.get_object('org.bluez', '/')
	iface = dbus.Interface(man, 'org.freedesktop.DBus.ObjectManager')
	for device in iface.GetManagedObjects().keys():
	for id in DEV_IDS:
	if device.endswith(id.replace(':','_')):
	device_paths.append((id, device))

	for id, device in device_paths:
	headset = bus.get_object('org.bluez', device)
	headset.connect_to_signal("PropertiesChanged", generate_handler(id), dbus_interface='org.freedesktop.DBus.Properties')
	devices.append(headset)

	loop = gobject.MainLoop()
	loop.run()
	[Unit]
	Description=Fix BT Speaker

	[Service]
	Type=simple
	Restart=always
	ExecStart=/usr/bin/fix-bt.py

	[Install]
	WantedBy=multi-user.target
	#! /usr/bin/env bash

	URL="https://gist.githubusercontent.com/pylover/d68be364adac5f946887b85e6ed6e7ae/raw/a2dp.py"
	TARGET=/usr/local/bin/a2dp.py

	curl $URL \| sudo tee ${TARGET} > /dev/null
	sudo chmod +x $TARGET

	echo "a2dp installation was successfull."
	echo "Run a2dp.py [-h/--help] and enjoy the HiFi music!"