dmt

commit 5364b2be9ce87fb5314c263998868b3663d6b466
parent 848e7e15d53d5f30af32d6b8e7ab2714b391457f
Author: parazyd <parazyd@dyne.org>
Date:   Wed, 29 Nov 2017 10:53:02 +0100

add midi_handler code

Diffstat:
A
midi-handler/config.py
 | 
14
++++++++++++++
A
midi-handler/midi_handler.py
 | 
74
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

2 files changed, 88 insertions(+), 0 deletions(-)
diff --git a/midi-handler/config.py b/midi-handler/config.py
@@ -0,0 +1,14 @@
+# See LICENSE file for copyright and license details.
+"""
+MIDI handler configuration
+"""
+
+# The device we want to use for MIDI. Found using: mido.get_input_names()
+#device_name = 'USB MS1x1 MIDI Interface:USB MS1x1 MIDI Interface MIDI 1 24:0'
+
+# Uncomment this for hardcode
+#device_name = 'USB MS1x1 MIDI Interface:USB MS1x1 MIDI Interface MIDI 1 20:0'
+
+# Comment this out if you hardcode
+import mido
+device_name = mido.get_input_names()[1]
diff --git a/midi-handler/midi_handler.py b/midi-handler/midi_handler.py
@@ -0,0 +1,74 @@
+#!/usr/bin/env python3
+# See LICENSE file for copyright and license details.
+"""
+MIDI listener daemon for the Caller Station
+"""
+
+from subprocess import Popen
+import mido
+
+from config import (device_name)
+
+
+def make_call():
+    # DISPLAY=:0 xdotool key 1 2 3 Return
+    print('Popping the mechanical turk')
+    Popen(['xdotool', 'key', '1', '2', '3', 'Return'],
+          env={'DISPLAY': ':0'})
+
+
+def cancel_call():
+    print('Popping the mechanical turk')
+    Popen(['xdotool', 'key', 'Escape'],
+          env={'DISPLAY': ':0'})
+
+def main():
+    print('Opening the MIDI input listener')
+    midi_in = mido.open_input(device_name)
+    for msg in midi_in:
+        print('Got MIDI message!')
+        #print('Type:', msg.type)
+        #print('Time:', msg.time)
+        #print('Velocity:', msg.velocity)
+        #print('Note:', msg.note)
+        #print('Channel:', msg.channel)
+        #print('Bytes:', msg.bytes())
+        #print('Bin:', msg.bin())
+        #print('Hex:', msg.hex())
+        print('Dict:', msg.dict())
+        midi_dict = msg.dict()
+
+        # a control change
+        #mtype = midi_dict.get('type')
+        #mtime = midi_dict.get('time')
+        #mctl = midi_dict.get('control')
+        #mval = midi_dict.get('value')
+        #mchan = midi_dict.get('channel')
+
+        # a note_on
+        mtype = midi_dict.get('type')
+        mtime = midi_dict.get('time')
+        mnote = midi_dict.get('note')
+        mvelo = midi_dict.get('velocity')
+        mchan = midi_dict.get('channel')
+
+        if mtype == 'note_on' and mtime == 0 and mnote == 60 \
+                and mchan == 0:
+            make_call()
+            print('Got MIDI 60. Making call.')
+        elif mtype == 'note_on' and mtime == 0 and mnote == 63 \
+                and mchan == 0:
+            cancel_call()
+            print('Got MIDI 63. Cancelling call.')
+
+
+        print('---')
+
+    # Try this out too:
+    #while True:
+    #    for msg in midi_in.iter_pending():
+    #        print(msg)
+
+
+if __name__ == '__main__':
+    main()