def _scan(self):
while True:
data = self.cam.readline()
qrcode = str(data)[8:]
if qrcode:
self.qrcode = qrcode.rstrip()
logger.info('scanned {}'.format(self.qrcode))
self._handlecmd(self.qrcode)
def __init__(self,
hostname='gijstereo.local',
logger=None): #'192.168.178.59'):
self.playload = None
if not logger:
logger = logging.getLogger()
# if the Volumio host is not available, wait 5 seconds and try again
# current timeout is 30 seconds
if not host_available(hostname):
attempts = 0
sleep(5)
while (not host_available(hostname)) and (attempts < 6):
attempts += 1
logger.info(
'waiting for host {} to be available'.format(hostname))
sleep(5)
if host_available(hostname):
sio = SocketIO(hostname)
if sio.connected:
self.connected = True
logger.info('connected to {}'.format(hostname))
sio.on('pushState', self._on_re_state)
sio.on('pushBrowseLibrary', self._on_re_browse)
self.sio = sio
self.state()
else:
logger.error('failed to connect to {}'.format(server))
else:
logger.error('failed to start, host {} was not found alive'.format(
hostname))
def _handlecmd(self, cmd):
if cmd.startswith('cmd:'):
logger.info('process command')
task = cmd.split(':')[1]
if task == 'toggle':
self.stereo.toggle()
elif task == 'volume':
mode, task, set = cmd.split(':')[:3]
if set in ['+', '-']:
self.stereo.volume(set)
else:
self.stereo.volume(int(set))
elif task == 'next':
self.stereo.next()
elif task == 'previous':
self.stereo.previous()
else:
logger.error("command '{}' not understood".format(cmd))
elif cmd.startswith('spotify:'):
self.stereo.playsong(cmd)
elif cmd.startswith('lib:'):
self.stereo.playsong(cmd)
else:
logger.error("don't know what to do with command '{}'".format(cmd))
def startscanner(self):
self.cam = os.popen('/usr/bin/zbarcam --nodisplay --prescale=300x250',
'r')
try:
self._scan()
except KeyboardInterrupt:
logger.info('Stopping scanner...')
finally:
self.stereo.disconnect()
if not self.stereo.connected:
logger.info('disconnected from server')
logger.info('------------------------')
self.cam.close()
def _on_re_browse(self, data):
logger.info('received browsing results')
while True:
data = self.cam.readline()
qrcode = str(data)[8:]
if qrcode:
self.qrcode = qrcode.rstrip()
logger.info('scanned {}'.format(self.qrcode))
self._handlecmd(self.qrcode)
def startscanner(self):
self.cam = os.popen('/usr/bin/zbarcam --nodisplay --prescale=300x250',
'r')
try:
self._scan()
except KeyboardInterrupt:
logger.info('Stopping scanner...')
finally:
self.stereo.disconnect()
if not self.stereo.connected:
logger.info('disconnected from server')
logger.info('------------------------')
self.cam.close()
if __name__ == '__main__':
logger.info("Start logging...")
s = Scanner(logger=logger)
s.startscanner()