class Mpradio:
control_pipe = None
bt_remote = None
gpio_remote = None
remote_event = None
remote_msg = None
media_control_methods = None
media_info_methods = None
remotes_termination = None
player = None
encoder = None
output = None
def __init__(self):
super().__init__()
signal.signal(signal.SIGUSR1, self.handler)
signal.signal(signal.SIGINT, self.termination_handler)
self.remote_msg = dict()
self.remotes_termination = threading.Event()
self.remote_event = threading.Event(
) # Event for signaling control thread(s) events to main thread
self.reply_event = threading.Event()
self.control_pipe = ControlPipe(self.remote_event, self.remote_msg)
self.bt_remote = BtRemote(self.remote_event, self.remote_msg)
# TODO: maybe refractor into player_methods and always eval()?
self.media_control_methods = [
f for f in dir(MediaControl)
if not f.startswith('_') and callable(getattr(MediaControl, f))
]
self.media_info_methods = [
f for f in dir(MediaInfo)
if not f.startswith('_') and callable(getattr(MediaInfo, f))
]
self.player = StoragePlayer()
self.encoder = Encoder()
if config.get_settings()["PIRATERADIO"]["output"] == "fm":
self.output = FmOutput()
else:
self.output = AnalogOutput()
def handler(self, signum, frame):
print("received signal", signum)
def termination_handler(self, signum, frame):
print("stopping threads and clean termination...")
self.remotes_termination.set()
self.player.stop()
self.encoder.stop()
self.output.stop()
quit(0)
def run(self):
self.encoder.run()
self.output.run()
self.player.set_out_stream(self.output.input_stream)
self.player.run()
self.bt_remote.run()
self.control_pipe.listen()
if platform.machine() != "x86_64":
from gpio_remote import GpioRemote
self.gpio_remote = GpioRemote(self.remote_event, self.remote_msg)
self.gpio_remote.run()
threading.Thread(target=self.check_remotes).start()
'''
# play stream
while True:
self.player.ready.wait()
data = self.player.output_stream.read()
if data is not None:
self.output.ready.wait()
self.output.input_stream.write(data)
t = 0.005
wait_time = ((len(data)/4)/44.1) * 0.001
# print("just read", len(data), "bytes. sleeping for", wait_time, "-", t)
if wait_time >= t:
wait_time -= t
time.sleep(wait_time)
# print("advancing playhead...")
'''
def check_remotes(self):
while not self.remotes_termination.is_set():
time.sleep(0.02)
if self.remote_event.is_set():
self.remote_event.clear()
try:
cmd = self.remote_msg["command"]
except KeyError:
continue
if cmd[0] in self.media_control_methods:
exec("self.player." + cmd[0] + "()")
elif cmd[0] in self.media_info_methods:
result = eval("self.player." + cmd[0] + "()")
if self.remote_msg["source"] == "bluetooth":
self.bt_remote.reply(result)
elif cmd[0] == "bluetooth":
if cmd[1] == "attach":
mac = get_connected_device()
if self.player.__class__.__name__ == "BtPlayerLite" or mac is None:
continue
tmp = BtPlayerLite(mac)
self.player.stop()
self.player = tmp
self.player.set_out_stream(self.output.input_stream)
self.player.run()
print("bluetooth attached")
elif cmd[1] == "detach":
if self.player.__class__.__name__ != "BtPlayerLite":
continue
self.player.stop()
self.player = StoragePlayer()
self.player.set_out_stream(self.output.input_stream)
self.player.run()
# self.player.ready.wait()
print("bluetooth detached")
elif cmd[0] == "system":
if cmd[1] == "poweroff":
self.player.pause()
call(["sudo", "poweroff"])
elif cmd[1] == "reboot":
self.player.pause()
call(["sudo", "reboot"])
elif cmd[1] == "wifi-switch" and cmd[2] == "status":
if self.remote_msg["source"] == "bluetooth":
result = Popen(cmd[1:],
stdout=PIPE).stdout.read().decode()
self.bt_remote.reply(result)
else:
call(["sudo"] + cmd[1:])
elif cmd[0] == "play":
if self.player.__class__.__name__ != "StoragePlayer":
continue
what = json.loads(self.remote_msg["data"])
self.player.play_on_demand(what)
elif cmd[0] == "playlist":
try:
with open(config.get_playlist_file()
) as file: # TODO: implement in player
pl = str(json.load(file))
self.bt_remote.reply(pl)
except FileNotFoundError:
pass
elif cmd[0] == "library":
try:
with open(config.get_library_file()) as file:
lib = str(json.load(file))
self.bt_remote.reply(lib)
except FileNotFoundError:
pass
elif cmd[0] == "config":
if cmd[1] == "get":
self.bt_remote.reply(config.to_json())
elif cmd[1] == "set":
cfg = self.remote_msg["data"]
self.apply_configuration(cfg)
elif cmd[
1] == "reload": # TODO: remove. this is for testing purposes only
self.reload_configuration()
else:
print("unknown command received:", cmd)
self.remote_msg.clear() # clean for next usage
# Remote checker termination
self.control_pipe.stop()
self.bt_remote.stop()
if self.gpio_remote is not None:
self.gpio_remote.stop()
def apply_configuration(self, cfg):
config.load_json(cfg)
self.reload_configuration()
def reload_configuration(self):
self.player.pause(
) # player must be paused/silenced to avoid audio feed loop on fm transmission
self.encoder.reload() # encoded must be reloaded to avoid broken pipe
self.output.check_reload() # don't restart output if not needed
self.player.resume()
class Mpradio:
control_pipe = None
bt_remote = None
gpio_remote = None
remote_event = None
remote_msg = None
media_control_methods = None
media_info_methods = None
remotes_termination = None
player = None
encoder = None
output = None
def __init__(self):
super().__init__()
signal.signal(signal.SIGUSR1, self.handler)
signal.signal(signal.SIGINT, self.termination_handler)
self.remote_msg = dict()
self.remotes_termination = threading.Event()
self.remote_event = threading.Event(
) # Event for signaling control thread(s) events to main thread
self.reply_event = threading.Event()
self.control_pipe = ControlPipe(self.remote_event, self.remote_msg)
self.bt_remote = BtRemote(self.remote_event, self.remote_msg)
# TODO: maybe refractor into player_methods and always eval()?
self.media_control_methods = [
f for f in dir(MediaControl)
if not f.startswith('_') and callable(getattr(MediaControl, f))
]
self.media_info_methods = [
f for f in dir(MediaInfo)
if not f.startswith('_') and callable(getattr(MediaInfo, f))
]
self.player = StoragePlayer()
self.encoder = Encoder()
if config.get_settings()["PIRATERADIO"]["output"] == "fm":
self.output = FmOutput()
else:
self.output = AnalogOutput()
def handler(self, signum, frame):
print("received signal", signum)
def termination_handler(self, signum, frame):
print("stopping threads and clean termination...")
self.remotes_termination.set()
self.player.stop()
self.encoder.stop()
self.output.stop()
quit(0)
def run(self):
self.player.run()
self.encoder.run()
self.output.run()
self.bt_remote.run()
self.control_pipe.listen()
if platform.machine() != "x86_64":
from gpio_remote import GpioRemote
self.gpio_remote = GpioRemote(self.remote_event, self.remote_msg)
self.gpio_remote.run()
threading.Thread(target=self.check_remotes).start()
# wait for the player to be ready and pre-buffer
self.player.ready.wait()
data = self.player.output_stream.read(self.player.CHUNK)
print("player is ready")
# play stream
while True:
try:
if data is not None:
self.encoder.ready.wait()
self.encoder.input_stream.write(data)
else:
# print("waiting for player data")
raise AttributeError
self.encoder.ready.wait()
encoded = self.encoder.output_stream.read(self.player.CHUNK)
if encoded is not None: # send the encoded data to output, if any
self.output.ready.wait()
self.output.input_stream.write(encoded)
else:
# print("waiting for encoder data")
raise AttributeError
except AttributeError:
time.sleep(self.player.SLEEP_TIME
) # avoid 100% CPU when player is paused
# advance the "play head"
self.player.ready.wait()
data = self.player.output_stream.read(self.player.CHUNK)
# print("advancing playhead...")
def check_remotes(self):
while not self.remotes_termination.is_set():
time.sleep(0.2)
if self.remote_event.is_set():
self.remote_event.clear()
try:
cmd = self.remote_msg["command"]
except KeyError:
continue
if cmd[0] in self.media_control_methods:
exec("self.player." + cmd[0] + "()")
elif cmd[0] in self.media_info_methods:
result = eval("self.player." + cmd[0] + "()")
if self.remote_msg["source"] == "bluetooth":
self.bt_remote.reply(result)
elif cmd[0] == "bluetooth":
if cmd[1] == "attach":
if self.player.__class__.__name__ == "BtPlayer":
continue
tmp = BtPlayer(cmd[2])
tmp.run()
tmp.ready.wait()
self.player.stop()
self.player = tmp
print("bluetooth attached")
elif cmd[1] == "detach":
if self.player.__class__.__name__ != "BtPlayer":
continue
tmp = StoragePlayer()
tmp.run()
tmp.ready.wait()
self.player.stop()
self.player = tmp
print("bluetooth detached")
elif cmd[0] == "system":
if cmd[1] == "poweroff":
self.player.pause()
call(["sudo", "poweroff"])
elif cmd[1] == "reboot":
call(["sudo", "reboot"])
elif cmd[0] == "play":
if self.player.__class__.__name__ != "StoragePlayer":
continue
what = json.loads(self.remote_msg["data"])
self.player.play_on_demand(what)
elif cmd[0] == "playlist":
try:
with open(config.get_playlist_file()
) as file: # TODO: implement in player
pl = str(json.load(file))
self.bt_remote.reply(pl)
except FileNotFoundError:
pass
elif cmd[0] == "library":
try:
with open(config.get_library_file()) as file:
lib = str(json.load(file))
self.bt_remote.reply(lib)
except FileNotFoundError:
pass
elif cmd[0] == "config":
if cmd[1] == "get":
self.bt_remote.reply(config.to_json())
elif cmd[1] == "set":
cfg = self.remote_msg["data"]
self.apply_configuration(cfg)
elif cmd[
1] == "reload": # TODO: remove. this is for testing purposes only
self.reload_configuration()
else:
print("unknown command received:", cmd)
self.remote_msg.clear() # clean for next usage
# Remote checker termination
self.control_pipe.stop()
self.bt_remote.stop()
if self.gpio_remote is not None:
self.gpio_remote.stop()
def apply_configuration(self, cfg):
config.load_json(cfg)
self.reload_configuration()
def reload_configuration(self):
self.player.pause(
) # player must be paused/silenced to avoid audio feed loop on fm transmission
self.encoder.reload() # encoded must be reloaded to avoid broken pipe
self.output.check_reload() # don't restart output if not needed
self.player.resume()
class Mpradio:
bt_daemon = None
control_pipe = None
gpio_remote = None
remote_event = None
remote_msg = None
media_control_methods = None
media_info_methods = None
check_remotes_termination = None
player = None
encoder = None
output = None
def __init__(self):
signal.signal(signal.SIGUSR1, self.handler)
signal.signal(signal.SIGINT, self.termination_handler)
self.remote_msg = dict()
self.check_remotes_termination = threading.Event()
self.remote_event = threading.Event(
) # Event for signaling control thread(s) events to main thread
self.control_pipe = ControlPipe(self.remote_event, self.remote_msg)
# Bluetooth setup (only if a2dp is supported)
# if which("bluealsa") is not None:
# self.bt_daemon = BluetoothDaemon()
# TODO: maybe refractor into player_methods end always eval()?
self.media_control_methods = [
f for f in dir(MediaControl)
if not f.startswith('_') and callable(getattr(MediaControl, f))
]
self.media_info_methods = [
f for f in dir(MediaInfo)
if not f.startswith('_') and callable(getattr(MediaInfo, f))
]
self.player = StoragePlayer()
self.encoder = Encoder()
if config.get_settings()["PIRATERADIO"]["output"] == "fm":
self.output = FmOutput()
else:
self.output = AnalogOutput()
def handler(self, signum, frame):
print("received signal", signum)
def termination_handler(self, signum, frame):
print("stopping threads and clean termination...")
self.check_remotes_termination.set()
self.control_pipe.stop()
self.player.stop()
self.encoder.stop()
self.output.stop()
quit(0)
def run(self):
# TODO: use some synchronization mechanism to ensure consistency player -> encoder -> output
self.player.run()
self.encoder.run()
self.output.start()
# TODO: start other control threads here (remotes) using the same event for all
self.control_pipe.listen()
if platform.machine() != "x86_64":
from gpio_remote import GpioRemote
self.gpio_remote = GpioRemote(self.remote_event, self.remote_msg)
self.gpio_remote.run()
threading.Thread(target=self.check_remotes).start()
# wait for the player to spawn
while self.player.stream is None:
time.sleep(0.2)
# pre-buffer
data = self.player.stream.stdout.read(self.player.CHUNK)
# play stream
while True:
try:
if data is not None:
self.encoder.stream.stdin.write(data)
else: # avoid 100% CPU when player is paused
# print("waiting for player data")
raise AttributeError
encoded = self.encoder.stream.stdout.read(
self.player.CHUNK) # must be non-blocking
if encoded is not None: # send the encoded data to output, if any
self.output.stream.stdin.write(encoded)
else:
# print("waiting for encoder data")
raise AttributeError
except AttributeError:
time.sleep(self.player.SLEEP_TIME)
# advance the "play head"
if self.player.stream is not None:
data = self.player.stream.stdout.read(
self.player.CHUNK) # must be non-blocking
def check_remotes(self):
while not self.check_remotes_termination.is_set():
time.sleep(0.2)
if self.remote_event.is_set():
self.remote_event.clear()
if self.remote_msg["command"][0] in self.media_control_methods:
print("command received:", self.remote_msg["command"][0])
exec("self.player." + self.remote_msg["command"][0] + "()")
# exec("threading.Thread(target="+"self.player." + self.remote_msg["command"][0] + ").start()")
elif self.remote_msg["command"][0] in self.media_info_methods:
print(
eval("self.player." + self.remote_msg["command"][0] +
"()"))
# TODO: check the source (remote_msg["source"] and send the reply accordingly
elif self.remote_msg["command"][0] == "bluetooth":
if self.remote_msg["command"][1] == "attach":
self.player.pause()
time.sleep(4)
self.player.stop()
self.player = BtPlayer(self.remote_msg["command"][2])
threading.Thread(target=self.player.run).start()
print("bluetooth attached")
elif self.remote_msg["command"][1] == "detach":
self.player.stop()
self.player = StoragePlayer()
threading.Thread(target=self.player.run).start()
print("bluetooth detached")
elif self.remote_msg["command"][0] == "system":
if self.remote_msg["command"][1] == "poweroff":
call(["sudo", "poweroff"])
elif self.remote_msg["command"][1] == "reboot":
call(["sudo", "reboot"])
else:
print("unknown command received:",
self.remote_msg["command"][0])
self.remote_msg.clear() # clean for next usage