def media_upload(files) :
"""Save file to SD card."""
log.info('Upload file')
result = 0
for file in files:
# Check if the file is one of the allowed types/extensions
if file and allowed_file(file.filename):
# Make the filename safe, remove unsupported chars
filename = secure_filename(file.filename)
# Move the file form the temporal folder to the upload
# folder we setup
try :
file.save(os.path.join(app.config['UPLOAD_FOLDER'], filename))
log.debug('file saved : %s',filename)
result = result + 1
except UploadNotAllowed:
log.error('file too large : %s',filename)
else:
log.warning('file not allowed : %s',filename)
# Reload all song on playlist
subprocess.call('mpc clear; mpc add %s; mpc update',app.config['UPLOAD_FOLDER'])
log.debug('result : %s',result)
return result
def mvt_counter(channel):
"""Incremente mvt conter on each call from GPIO triggering.
@Imput .
@Return .
"""
log.info('Incremente mvt conter')
g.mvt_counter = g.mvt_counter + 1
log.debug('mvt_counter : %d', g.mvt_counter)
def mvt_counter(channel):
"""Incremente mvt conter on each call from GPIO triggering.
@Imput .
@Return .
"""
log.info("Incremente mvt conter")
g.mvt_counter = g.mvt_counter + 1
log.debug("mvt_counter : %d", g.mvt_counter)
def agitation_ctr_exe():
"""Agitation controller task.
@Imput .
@Return .
"""
log.info('Agitation controller task')
with app.app_context():
signal.setitimer(signal.ITIMER_PROF, 60, 60)
agitation_detect()
def agitation_ctr_exe():
"""Agitation controller task.
@Imput .
@Return .
"""
log.info("Agitation controller task")
with app.app_context():
signal.setitimer(signal.ITIMER_PROF, 60, 60)
agitation_detect()
def agitation_count():
"""Retreive number of mvt per minute and store it on db.
@Imput .
@Return .
"""
log.info('Retreive number of mvt per minute')
log.debug('mvt_counter : %d', g.mvt_counter)
db['mvt_count'] = g.mvt_counter
g.mvt_counter = 0
def agitation_count():
"""Retreive number of mvt per minute and store it on db.
@Imput .
@Return .
"""
log.info("Retreive number of mvt per minute")
log.debug("mvt_counter : %d", g.mvt_counter)
db["mvt_count"] = g.mvt_counter
g.mvt_counter = 0
def terminate():
"""Free resources.
@Imput .
@Return .
"""
log.info('Free resources')
signal.alarm(0)
GPIO.cleanup()
exit(0)
def agitation_detect():
"""Detect agitation from GPIO and call mvt_counter.
@Imput .
@Return .
"""
log.info("Set GPIO")
GPIO.setmode(GPIO.BCM)
# GPIO 24 set up as an input, pulled down, connected to 3V3 on button press
GPIO.setup(app.config["GPIO_CHANNEL"], GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
GPIO.add_event_detect(app.config["GPIO_CHANNEL"], GPIO.RISING, callback=mvt_counter, bouncetime=300)
def terminate():
"""Free resources.
@Imput .
@Return .
"""
log.info("Free resources")
signal.alarm(0)
GPIO.cleanup()
exit(0)
def agitation_detect():
"""Detect agitation from GPIO and call mvt_counter.
@Imput .
@Return .
"""
log.info('Set GPIO')
GPIO.setmode(GPIO.BCM)
# GPIO 24 set up as an input, pulled down, connected to 3V3 on button press
GPIO.setup(app.config['GPIO_CHANNEL'], GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
GPIO.add_event_detect(app.config['GPIO_CHANNEL'],
GPIO.RISING,
callback=mvt_counter,
bouncetime=300)
def steam_ctr_stop() :
"""Stop streamer.
@Imput .
@Return result.
"""
log.info('Stop streamer')
try :
check_call(["./Streamer.sh","Stop"])
result = 'Success'
except CalledProcessError as e:
log.exception('gst stop error : %s',e.returncode)
result = 'Error'
return result
def activity_ctr_exe():
"""Activity controller task.
@Imput .
@Return .
"""
log.info("Activity controller task")
g.refresh_count1 = 0
g.refresh_count2 = 0
# Set the signal handler
signal.signal(signal.SIGTERM, handler)
signal.signal(signal.SIGALRM, handler)
# setup periodic alarm to evaluate sound level and set agitation level
signal.alarm(app.config["REFRESH_RATE"])
def activity_ctr_exe():
"""Activity controller task.
@Imput .
@Return .
"""
log.info('Activity controller task')
g.refresh_count1 = 0
g.refresh_count2 = 0
# Set the signal handler
signal.signal(signal.SIGTERM, handler)
signal.signal(signal.SIGALRM, handler)
# setup periodic alarm to evaluate sound level and set agitation level
signal.alarm(app.config['REFRESH_RATE'])
def steam_ctr_restart() :
"""Restart streamer.
@Imput .
@Return result.
"""
log.info('Restart Streamer')
result = 'Error'
try :
check_call(["./Streamer.sh","Restart"])
result = 'Success'
except CalledProcessError as e:
log.exception('gst restart error : %s',e.returncode)
result = 'Error'
return result
def media_VolDown() :
"""Volume down."""
log.info('Volume Down')
try :
subprocess.call('mpc volume - ')
log.debug('Volume decreased')
result = 'Success'
except subprocess.CalledProcessError :
# file not deleted
log.error('Volume decrease error')
log.warning('Return code : %s',subprocess.CalledProcessError.returncode)
result = 'Error'
log.debug('result : %s',result)
return result
def media_Play() :
"""Play playlist songs."""
log.info('Play songs')
try :
subprocess.call('mpc play ')
log.debug('Play')
result = 'Success'
except subprocess.CalledProcessError :
# file not deleted
log.error('Play error')
log.warning('Return code : %s',subprocess.CalledProcessError.returncode)
result = 'Error'
log.debug('result : %s',result)
return result
def handler(signum, frame):
"""Signals handler.
SIGTERM to stop controller gracefully
SIGALRM handle activity controller alarm
SIGPROF handle agitation
@Imput .
@Return .
"""
log.info('Signals handler')
log.debug('signal : %d', signum)
if (signum == signal.SIGTERM):
terminate()
elif (signum == signal.SIGALRM):
activity_check()
elif (signum == signal.SIGPROF):
agitation_count()
def normal_levels(agi_normal):
"""Calibrate the normal level to actual sound level.
@Imput .
@Return .
"""
log.info("Calibration")
try:
db["agi_normal"] = agi_normal
db["lvl_normal"] = sound_level()
log.debug("agi_normal : %s", agi_normal)
log.debug("lvl_normal : {:10.4f}".format(db["lvl_normal"]))
result = "Success"
except:
log.exception("Calibration error ")
result = "Error"
return result
def handler(signum, frame):
"""Signals handler.
SIGTERM to stop controller gracefully
SIGALRM handle activity controller alarm
SIGPROF handle agitation
@Imput .
@Return .
"""
log.info("Signals handler")
log.debug("signal : %d", signum)
if signum == signal.SIGTERM:
terminate()
elif signum == signal.SIGALRM:
activity_check()
elif signum == signal.SIGPROF:
agitation_count()
def normal_levels(agi_normal):
"""Calibrate the normal level to actual sound level.
@Imput .
@Return .
"""
log.info('Calibration')
try:
db['agi_normal'] = agi_normal
db['lvl_normal'] = sound_level()
log.debug('agi_normal : %s', agi_normal)
log.debug("lvl_normal : {:10.4f}".format(db['lvl_normal']))
result = 'Success'
except:
log.exception('Calibration error ')
result = 'Error'
return result
def media_list() :
"""List song files."""
log.info('List songs')
try :
#TODO : list command
titles = subprocess.check_output('')
log.debug('Playlist titles : %s',titles)
titles = titles.splitlines()
result = titles
except subprocess.CalledProcessError :
# file not deleted
log.error('list error')
log.warning('Return code : %s',subprocess.CalledProcessError.returncode)
result = 'Error'
log.debug('result : %s',result)
return result
def media_ctr() :
"""Control media center.
@Imput command : [Upload,Delete,List,Play,Stop,VolUp,VolDown].
titles.
@Return result : [%d,list,Success,Error].
"""
log.info('media_ctr BEGIN')
# Get the JSON data sent from the form
data = request.get_json(force=True)
log.info(data['command'])
if (data['command'] == 'Upload') :
result = media_upload(request.files.getlist("file[]"))
elif (data['command'] == 'Delete') :
result = media_del(data['titles'])
elif (data['command'] == 'List') :
result = media_list()
elif (data['command'] == 'Play') :
result = media_Play()
elif (data['command'] == 'Stop') :
result = media_Stop()
elif (data['command'] == 'VolUp') :
result = media_VolUp()
elif (data['command'] == 'VolDown') :
result = media_VolDown()
else :
log.warning('invalid command')
result = 'None'
log.debug(result)
log.info('media_ctr END')
return jsonify(result=result)
def stream_ctr() :
"""Control streamer.
@Imput command : [Start,Stop,Restart].
@Return result : [Success,Error,None].
"""
log.info('stream_ctr BEGIN')
# Get the JSON data sent from the form
data = request.get_json(force=True)
log.info(data['command'])
if (data['command'] == 'Start') :
result = steam_ctr_start()
elif (data['command'] == 'Stop') :
result = steam_ctr_stop()
elif (data['command'] == 'Restart') :
result = steam_ctr_restart()
else :
log.warning('invalid command')
result = 'None'
log.debug(result)
log.info('stream_ctr END')
return jsonify(result=result)
def media_del(files) :
"""Delete file from SD card and reload playlist."""
log.info('Delete file')
result = 0
for file in files:
try :
#delete file from directory
subprocess.call('rm -f %s',file)
log.debug('file deleted : %s',file)
result = result + 1
except subprocess.CalledProcessError :
# file not deleted
log.error('file not deleted')
log.warning('Return code : %s',subprocess.CalledProcessError.returncode)
# Reload all song on playlist
subprocess.call('mpc clear; mpc add %s; mpc update',app.config['UPLOAD_FOLDER'])
log.debug('result : %s',result)
return result
def sound_level():
"""calculate sound level.
@Imput .
@Return energy.
"""
log.info('calculate sound level')
# # set up audio input
card = CARD
recorder = alsaaudio.PCM(alsaaudio.PCM_CAPTURE, alsaaudio.PCM_NORMAL, card)
recorder.setchannels(CHANNELS)
recorder.setrate(RATE)
recorder.setformat(INFORMAT)
recorder.setperiodsize(FRAMESIZE)
[length, data] = recorder.read()
log.debug('length : %f', length)
volume = audioop.max(data, 2)
log.debug("volume : %f", volume)
volume = audioop.rms(data, 2)
log.debug("volume : %f", volume)
return volume
def sound_level():
"""calculate sound level.
@Imput .
@Return energy.
"""
log.info("calculate sound level")
# # set up audio input
card = CARD
recorder = alsaaudio.PCM(alsaaudio.PCM_CAPTURE, alsaaudio.PCM_NORMAL, card)
recorder.setchannels(CHANNELS)
recorder.setrate(RATE)
recorder.setformat(INFORMAT)
recorder.setperiodsize(FRAMESIZE)
[length, data] = recorder.read()
log.debug("length : %f", length)
volume = audioop.max(data, 2)
log.debug("volume : %f", volume)
volume = audioop.rms(data, 2)
log.debug("volume : %f", volume)
return volume
def activity_ctr() :
"""Control activity.
@Imput command : [Start,Stop,Calibrate].
agi_normal (decimal).
@Return result : [In progress,Success,Stoped,Error,None].
"""
log.info('activity_ctr BEGIN')
# Get the JSON data sent from the form
data = request.get_json(force=True)
log.info(data['command'])
if (data['command'] == 'Start') :
result = 'Error'
if ((db.has_key('act_job_id')) and (db['act_job_id'] != '')) :
result = 'In progress'
else :
# Start the agitation controller
agi_job = agitation_ctr_exe.delay()
result = agi_job.AsyncResult(agi_job.id).state
if (result == states.SUCCESS) :
# Start the activity controller
act_job = activity_ctr_exe.delay()
result = act_job.AsyncResult(act_job.id).state
if (result == states.SUCCESS) :
result = 'Success'
db['act_job_id'] = act_job.AsyncResult(act_job.id).id
elif (data['command'] == 'Stop') :
result = 'Error'
if ((not db.has_key('act_job_id')) or (db['act_job_id'] == '')) :
result = 'Stoped'
else :
# Stop the activity controller
revoke(act_job.id, terminate=True, signal='SIGTERM')
result = act_job.AsyncResult(act_job.id).state
if (result == states.REVOKED) :
# Stop the agitation controller
revoke(agi_job.id, terminate=True, signal='SIGTERM')
result = agi_job.AsyncResult(agi_job.id).state
if (result == states.REVOKED) :
result = 'Success'
db['act_job_id'] = ''
elif (data['command'] == 'Calibrate') :
# Calibrate the normale sound level
result = normal_levels(data['agi_normal'])
#TODO : adjust intervals
else :
log.warning('invalid command')
result = 'None'
log.debug(result)
log.info('activity_ctr END')
return jsonify(result=result)
def activity_check():
"""Evaluate sound and agitation level.
@Imput .
@Return .
"""
log.info('Evaluate sound and agitation level')
energy = sound_level()
if (energy < db['lvl_normal']):
# Quiet state
log.debug('Quiet state')
# We reset timer counter for agitation
g.refresh_count1 = 0
g.refresh_count2 = 0
elif ((energy >= db['lvl_normal'])
and (energy < db['lvl_normal'] + db['normal_interval'])):
# Normal state
log.debug('Normal state')
g.refresh_count2 = 0
# If agitation stay higher than normal for a configurable periode
if (db['mvt_count'] > db['agi_normal']) and (
g.refresh_count1 > app.config['REFRESH_COUNT']):
log.debug('if-refresh_count1 : %s', g.refresh_count1)
# We reduce the normal level
db['lvl_normal'] = db['lvl_normal'] * (
app.config['REDUCTION_RATE'] / 100)
log.debug('new lvl_normal : %s', db['lvl_normal'])
g.refresh_count1 = 0
# If agitation is higher we increment timer counter
elif (db['mvt_count'] > db['agi_normal']):
g.refresh_count1 = g.refresh_count1 + 1
log.debug('elif-refresh_count1 : %s', g.refresh_count1)
# If agitation return to normal we reset timer counter
else:
g.refresh_count1 = 0
log.debug('else-refresh_count1 : %s', g.refresh_count1)
elif ((energy >= db['lvl_normal'] + db['normal_interval'])
and (energy < db['lvl_normal'] + db['normal_interval'] +
db['active_interval'])):
# Active state
log.debug('Active state')
# We reset timer counter for agitation
g.refresh_count1 = 0
# If active period is higher than a configurable periode
if (g.refresh_count2 > app.config['REFRESH_COUNT']):
log.debug('if-refresh_count2 : %s', g.refresh_count2)
#TODO : If agitation is higher we send silent notification
# if (db['mvt_count'] > db['agi_normal']) :
# We increase the normal level
db['lvl_normal'] = db['lvl_normal'] * (
1 + (app.config['INCREASE_RATE'] / 100))
log.debug('new lvl_normal : %s', db['lvl_normal'])
g.refresh_count2 = 0
else:
g.refresh_count2 = g.refresh_count2 + 1
log.debug('else-refresh_count2 : %s', g.refresh_count2)
elif (energy >=
db['lvl_normal'] + db['normal_interval'] + db['active_interval']):
# Criying state
log.debug('Criying state')
# We reset timer counter for agitation
g.refresh_count1 = 0
g.refresh_count2 = 0
def activity_check():
"""Evaluate sound and agitation level.
@Imput .
@Return .
"""
log.info("Evaluate sound and agitation level")
energy = sound_level()
if energy < db["lvl_normal"]:
# Quiet state
log.debug("Quiet state")
# We reset timer counter for agitation
g.refresh_count1 = 0
g.refresh_count2 = 0
elif (energy >= db["lvl_normal"]) and (energy < db["lvl_normal"] + db["normal_interval"]):
# Normal state
log.debug("Normal state")
g.refresh_count2 = 0
# If agitation stay higher than normal for a configurable periode
if (db["mvt_count"] > db["agi_normal"]) and (g.refresh_count1 > app.config["REFRESH_COUNT"]):
log.debug("if-refresh_count1 : %s", g.refresh_count1)
# We reduce the normal level
db["lvl_normal"] = db["lvl_normal"] * (app.config["REDUCTION_RATE"] / 100)
log.debug("new lvl_normal : %s", db["lvl_normal"])
g.refresh_count1 = 0
# If agitation is higher we increment timer counter
elif db["mvt_count"] > db["agi_normal"]:
g.refresh_count1 = g.refresh_count1 + 1
log.debug("elif-refresh_count1 : %s", g.refresh_count1)
# If agitation return to normal we reset timer counter
else:
g.refresh_count1 = 0
log.debug("else-refresh_count1 : %s", g.refresh_count1)
elif (energy >= db["lvl_normal"] + db["normal_interval"]) and (
energy < db["lvl_normal"] + db["normal_interval"] + db["active_interval"]
):
# Active state
log.debug("Active state")
# We reset timer counter for agitation
g.refresh_count1 = 0
# If active period is higher than a configurable periode
if g.refresh_count2 > app.config["REFRESH_COUNT"]:
log.debug("if-refresh_count2 : %s", g.refresh_count2)
# TODO : If agitation is higher we send silent notification
# if (db['mvt_count'] > db['agi_normal']) :
# We increase the normal level
db["lvl_normal"] = db["lvl_normal"] * (1 + (app.config["INCREASE_RATE"] / 100))
log.debug("new lvl_normal : %s", db["lvl_normal"])
g.refresh_count2 = 0
else:
g.refresh_count2 = g.refresh_count2 + 1
log.debug("else-refresh_count2 : %s", g.refresh_count2)
elif energy >= db["lvl_normal"] + db["normal_interval"] + db["active_interval"]:
# Criying state
log.debug("Criying state")
# We reset timer counter for agitation
g.refresh_count1 = 0
g.refresh_count2 = 0