Initial version of Python player

player.py

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+from pirc522 import RFID
+from glob import glob
+
+import atexit
+import os
+import time
+import signal
+import subprocess
+import vlc
+
+rdr = RFID()
+util = rdr.util()
+
+last_seen = None
+seen_at = 0
+p = None
+
+RETRY_TIME = 2
+
+#player = subprocess.Popen(["mpg321", "-R", "-"], stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+player = subprocess.Popen(["mpg321", "-R", "-"], stdin=subprocess.PIPE)
+player.stdin.write("GAIN 100")
+
+try:
+  while True:
+    (error, tag_type) = rdr.request()
+    if not error:
+      (error, uid) = rdr.anticoll()
+      if not error:
+        tag_id = ''.join(hex(x)[2:].zfill(2) for x in uid)
+        print("Tag: " + tag_id)
+
+        if tag_id == 'b9506555d9':
+          print("Stopping playback.")
+          player.stdin.write("STOP\n")
+          continue
+
+        if time.time() > (seen_at + RETRY_TIME):
+          last_seen = uid
+          seen_at = time.time()
+
+          if tag_id == 'aa89665510':
+            print("Toggling pause.")
+            player.stdin.write("PAUSE\n")
+            continue
+
+          file = glob("media/" + tag_id + " - *.mp3")
+          if file:
+            print("Playing file " + file[0])
+            player.stdin.write("STOP\n")
+            player.stdin.write("LOAD " + file[0] + "\n")
+
+          continue
+except (KeyboardInterrupt, SystemExit):
+  os.kill(player.pid, signal.SIGTERM)
+
+# Calls GPIO cleanup
+rdr.cleanup()

requirements.txt

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+pi-rc522==1.1.0
+RPi.GPIO==0.6.3
+SPI-Py==1.0