158 lines
4.6 KiB
Python
158 lines
4.6 KiB
Python
# piplayer4 - AudioLauncher
|
|
# http://www.tilman.de/piplayer4
|
|
|
|
import RPi.GPIO as GPIO
|
|
import logging
|
|
import time
|
|
import subprocess
|
|
import select # for polling zbarcam, see http://stackoverflow.com/a/10759061/3761783
|
|
from socketIO_client import SocketIO, LoggingNamespace # see https://gist.github.com/ivesdebruycker/4b08bdd5415609ce95e597c1d28e9b9e
|
|
from threading import Thread
|
|
|
|
|
|
logging.basicConfig(level=logging.INFO, format='%(asctime)s %(levelname)s - %(message)s')
|
|
logging.info('Initializing')
|
|
|
|
# Configuration
|
|
MUSIC_BASE_DIRECTORY = "mnt/NAS/"
|
|
SOUND_SCANNING = "mnt/INTERNAL/sounds/scanning.mp3"
|
|
SOUND_SCAN_FAIL = "mnt/INTERNAL/sounds/fail-05.mp3"
|
|
QR_SCANNER_TIMEOUT = 4
|
|
|
|
|
|
# photo sensor on PIN 17
|
|
PIN_SENSOR = 4 # TEST
|
|
|
|
# IR LED on PIN 22
|
|
PIN_IR_LED = 22
|
|
|
|
# LED on PIN 27
|
|
PIN_LED = 27
|
|
|
|
# Buttons on PINs 9, 10 and 11
|
|
PIN_PREV = 9
|
|
PIN_PLAY = 10
|
|
PIN_NEXT = 11
|
|
|
|
|
|
GPIO.setmode(GPIO.BCM)
|
|
GPIO.setup(PIN_SENSOR, GPIO.IN, pull_up_down=GPIO.PUD_UP) # TEST
|
|
GPIO.setup(PIN_IR_LED, GPIO.OUT)
|
|
GPIO.output(PIN_IR_LED, GPIO.LOW)
|
|
GPIO.setup(PIN_LED, GPIO.OUT)
|
|
GPIO.output(PIN_LED, GPIO.LOW)
|
|
GPIO.setup(PIN_PREV, GPIO.IN, pull_up_down=GPIO.PUD_UP)
|
|
GPIO.setup(PIN_PLAY, GPIO.IN, pull_up_down=GPIO.PUD_UP)
|
|
GPIO.setup(PIN_NEXT, GPIO.IN, pull_up_down=GPIO.PUD_UP)
|
|
|
|
|
|
is_playing = False # for toggling play/pause (stores the current status from the pushState events)
|
|
|
|
socketIO = SocketIO('localhost', 3000)
|
|
|
|
|
|
def play(uri, service = 'mpd'):
|
|
socketIO.emit('replaceAndPlay', {'service':service,'uri':uri})
|
|
|
|
def prev_callback(channel):
|
|
logging.info("PREV")
|
|
socketIO.emit('prev')
|
|
## TODO implement seek
|
|
|
|
def play_callback(channel):
|
|
global is_playing
|
|
if is_playing:
|
|
logging.info("PAUSE")
|
|
socketIO.emit('pause')
|
|
else:
|
|
logging.info("PLAY")
|
|
socketIO.emit('play')
|
|
|
|
def next_callback(channel):
|
|
logging.info("NEXT")
|
|
socketIO.emit('next')
|
|
## TODO implement seek
|
|
|
|
def on_pushState(*args):
|
|
logging.debug(args[0]['status'])
|
|
global is_playing
|
|
if args[0]['status'] == 'play':
|
|
is_playing = True
|
|
else:
|
|
is_playing = False
|
|
|
|
def events_thread():
|
|
socketIO.wait()
|
|
|
|
|
|
GPIO.add_event_detect(PIN_PREV, GPIO.FALLING, callback=prev_callback, bouncetime=400)
|
|
GPIO.add_event_detect(PIN_PLAY, GPIO.FALLING, callback=play_callback, bouncetime=400)
|
|
GPIO.add_event_detect(PIN_NEXT, GPIO.FALLING, callback=next_callback, bouncetime=400)
|
|
|
|
|
|
try:
|
|
socketIO.on('pushState', on_pushState)
|
|
listener_thread = Thread(target=events_thread)
|
|
listener_thread.daemon = True
|
|
listener_thread.start()
|
|
|
|
while True:
|
|
logging.info('Wait for photo sensor')
|
|
GPIO.wait_for_edge(PIN_SENSOR, GPIO.FALLING) # TEST
|
|
|
|
logging.info('Photo sensor active, activating light and camera')
|
|
play(SOUND_SCANNING)
|
|
|
|
# turn LED on
|
|
GPIO.output(PIN_LED, GPIO.HIGH)
|
|
|
|
# scan QR code
|
|
zbarcam = subprocess.Popen(['zbarcam', '--quiet', '--nodisplay', '--raw', '-Sdisable', '-Sqrcode.enable', '--prescale=320x240', '/dev/video0'], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
|
|
|
|
poll_obj = select.poll()
|
|
poll_obj.register(zbarcam.stdout, select.POLLIN)
|
|
|
|
# wait for scan result (or timeout)
|
|
start_time = time.time()
|
|
poll_result = False
|
|
while ((time.time() - start_time) < QR_SCANNER_TIMEOUT and (not poll_result)):
|
|
poll_result = poll_obj.poll(100)
|
|
|
|
if (poll_result):
|
|
qr_code = zbarcam.stdout.readline().rstrip()
|
|
qr_code = qr_code.decode("utf-8") # python3
|
|
logging.info("QR Code: " + qr_code)
|
|
|
|
if qr_code.startswith("http://"):
|
|
play(qr_code, 'webradio')
|
|
elif qr_code.startswith("spotify:"):
|
|
play(qr_code, 'spop')
|
|
else:
|
|
# create full path
|
|
if (qr_code.startswith("/")):
|
|
qr_code = qr_code[1:]
|
|
full_path = MUSIC_BASE_DIRECTORY + qr_code
|
|
logging.info("full_path: " + full_path)
|
|
play(full_path)
|
|
|
|
else:
|
|
logging.warning('Timeout on zbarcam')
|
|
play(SOUND_SCAN_FAIL)
|
|
|
|
zbarcam.terminate()
|
|
GPIO.output(PIN_LED, GPIO.LOW)
|
|
|
|
# wait until sensor is not blocked anymore
|
|
if (GPIO.input(PIN_SENSOR) == GPIO.HIGH):
|
|
GPIO.wait_for_edge(PIN_SENSOR, GPIO.FALLING)
|
|
time.sleep(1)
|
|
|
|
|
|
# Exit when Ctrl-C is pressed
|
|
except KeyboardInterrupt:
|
|
logging.info('Shutdown')
|
|
|
|
finally:
|
|
logging.info('Reset GPIO configuration and close')
|
|
GPIO.cleanup()
|