1 files changed, 92 insertions, 0 deletions
diff --git a/lichterkette-ir.py b/lichterkette-ir.py
new file mode 100644
index 0000000..d7f3d57
--- /dev/null
+++ b/lichterkette-ir.py
@@ -0,0 +1,92 @@
+#!/usr/bin/env python3
+import random
+
+import pyaudio
+import audioop
+
+import paramiko
+
+FORMAT = pyaudio.paInt16
+CHANNELS = 2
+RATE = 96000 #44100
+INPUT_BLOCK_TIME = 0.5 # seconds
+INPUT_FRAMES_PER_BLOCK = int(RATE * INPUT_BLOCK_TIME)
+INPUT_INDEX = None #3 # JACK
+
+SERVER = "192.168.2.61"
+USER = "root"
+PASSWORD = "root"
+
+COMMAND = "irsend SEND_ONCE led %s"
+ON = "AN"
+
+MAP = [
+    'WEISS',
+    'ROT',
+    'ROT1',
+    'ROT2',
+    'ROT3',
+    'GRUEN',
+    'GRUEN1',
+    'GRUEN2',
+    'GRUEN3',
+    'BLAU',
+    'BLAU1',
+    'BLAU2',
+    'BLAU3'
+]
+
+SEND_THRESHOLD = 0 #len(MAP) / 6
+
+def main():
+    history = []
+
+    pa = pyaudio.PyAudio()
+    stream = pa.open(format=FORMAT,
+            channels=CHANNELS,
+            rate=RATE,
+            input=True,
+            input_device_index=INPUT_INDEX,
+            frames_per_buffer=INPUT_FRAMES_PER_BLOCK)
+
+    ssh = paramiko.SSHClient()
+    ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy()) # aww
+    ssh.connect(SERVER, username=USER, password=PASSWORD)
+
+    stdin, stdout, stderr = ssh.exec_command(COMMAND % ON)
+    stdout.readlines() # block
+
+    lastIndex = -1
+    while True:
+        block = stream.read(INPUT_FRAMES_PER_BLOCK)
+        score = audioop.rms(block, 2)
+
+        lower = history[0 : int(len(history) / 3)]
+        average = history[int(len(history) / 3) : int(len(history) / 3 * 2)]
+        upper = history[int(len(history) / 3 * 2) : len(history)]
+
+        if len(lower) != 0 and len(average) != 0 and len(upper) != 0:
+            lowerAvg = sum(lower) / len(lower)
+            averageAvg = sum(average) / len(average)
+            upperAvg = sum(upper) / len(upper)
+
+            index = int((score - lowerAvg) / upperAvg * (len(MAP) - 1))
+            if index > len(MAP) - 1:
+                print("toobig")
+                index = len(MAP) - 1
+            if index < 0:
+                print("toosmall")
+                index = 0
+            if abs(index - lastIndex) > SEND_THRESHOLD:
+                stdin, stdout, stderr = ssh.exec_command(COMMAND % MAP[index])
+                stdout.readlines() # block
+                lastIndex = index
+
+        history.append(score)
+        if len(history) > 10 / INPUT_BLOCK_TIME:
+            # keep only    ^ seconds
+            history.pop(random.randrange(len(history)))
+        history.sort()
+
+if __name__ == "__main__":
+    main()