midicontrol example
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Miredis hooks to all midi devices connected and listen for events.
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Miredis can optionnaly hook to opensourced Link protocol (200+ music & videos apps) -> "/beat" & "/bpm"
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All events are forwarded to a redis server and an OSC server.
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All events are forwarded to your redis server and your OSC server.
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![Clitools](https://www.teamlaser.fr/images/miredispad.png)
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@ -19,8 +19,11 @@ To enable Link :
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python3 miredis.py -link
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(for cheap midi interface midisport/midiman from audio on Linux : apt-get install midisport-firmware)
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## New Features
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- Client example : midicontrol.py
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- Added verbose mode -v
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- Added redis subscribe events
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- Added Clitools program selection mode for Launchpads
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@ -29,6 +32,8 @@ python3 miredis.py -link
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## OSC
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Following messages will be sent to an outside OSC server :
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/midi/noteon midichannel note velocity
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/midi/noteoff midichannel note
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@ -4,17 +4,18 @@
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'''
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Ableton Link with bridge to OSC & Redis
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alink v0.2
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Ableton Link bridge to OSC & Redis
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LICENCE : CC
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Sam Neurohack
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Get:
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Needs link.cpython library. Comes with some precompiled libraries.
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To build it :
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git clone --recursive https://github.com/gonzaloflirt/link-python.git
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Build:
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Make sure python 3 is installed on your system.
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mkdir build
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@ -162,7 +162,7 @@ def SendUI(oscaddress,oscargs=''):
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osclientlj.sendto(oscmsg, (TouchOSCIP, TouchOSCPort))
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oscmsg.clearData()
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except:
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log.err('Connection to Aurora UI refused : died ?')
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log.err('Connection to UI refused : died ?')
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pass
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#time.sleep(0.001
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202
midicontrol.py
Normal file
202
midicontrol.py
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#!/usr/bin/python3
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# -*- coding: utf-8 -*-
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# -*- mode: Python -*-
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'''
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Midi controlled skeleton
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v0.1.0
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Needs miredis (listen to midi devices)
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Licensed under GNU GPLv3
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by Sam Neurohack
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'''
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import sys
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import traceback
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import argparse
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import redis
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import ast
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argsparser = argparse.ArgumentParser(description="Midi/Redis control skeleton")
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argsparser.add_argument("-c","--channel",help="Default midi channel (1)",default="1",type=str)
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argsparser.add_argument("-m","--mode",help="Default running mode (33)",default="33",type=str)
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args = argsparser.parse_args()
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cchannel=args.channel
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note = args.mode
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ip = '127.0.0.1'
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port = 6379
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rds = redis.Redis(
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host=ip,
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port=port)
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MidiSub = rds.pubsub()
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MidiSub.subscribe("/midi/last_event")
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print("Midi events subscribed")
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cc = [0]*128
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bpm = 120
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notejump = {"33": "modeA()",
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"35": "modeB()",
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"44": "sys.exit(0)" # Beware
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}
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def MidiSubEvent():
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global note
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msg = MidiSub.get_message()
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if msg:
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message = str(msg['data'])
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# Noteon change main function via notejump
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if message.find('noteon') != -1:
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noteon = message.split("/")
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#print(noteon)
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#if noteon[3] == cchannel:
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if noteon[4] in notejump:
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note = noteon[4]
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print(notejump[note])
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# Audio Redis keys continuously updated by specredis
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def Current():
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global data1, data2, data3
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# live audio parameters from specredis.py in redis
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# if data1 key like "[2.96, 1.01, 4.89, 3.29, 2.53, 2.10, 1.84, 1.66, 1.56, 1.50]"
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data1redis = rds.get('levels')
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data1 = ast.literal_eval(data1redis.decode('ascii'))
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data1width = len(data1)
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data2 = float(rds.get('spectrummax'))
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data3 = float(rds.get('spectrumsum'))
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# 1 CC -> 7 bits number : 0-127
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# rerange end value between low high
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# midifactor(ccnumber, channel, low, high, default)
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def midifactor(ccnumber, channel = cchannel, low =0, high=127, default =1):
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ccvalue = rds.get('/midi/cc/'+str(channel)+'/'+str(ccnumber))
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if ccvalue is not None:
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return rerange(int(ccvalue), 0, 127, low, high)
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else:
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print('Default value returned. No midi value in redis for channel', channel, 'CC', ccnumber)
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return default
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# 2 CC -> 14 bits number : 0 - 16383
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# rerange end value between low high
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# midifactor(ccnumber, channel, low, high, default)
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def midifactor14(highcc, lowcc, channel = cchannel, low =0, high=16383, default =1):
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lowvalue = rds.get('/midi/cc/'+str(channel)+'/'+str(lowcc))
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highvalue = rds.get('/midi/cc/'+str(channel)+'/'+str(highcc))
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if lowvalue is not None and highcc is not None:
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return rerange((int(highvalue) << 7)+ int(lowvalue), 0, 16383, low, high)
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else:
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print('Default value returned. No midi value in redis for channel', channel, 'CC', ccnumber)
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return default
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# increase or decrease value
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def Encoder(ccnumber, channel = cchannel):
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ccvalue = rds.get('/midi/cc/'+str(channel)+'/'+str(ccnumber))
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# encoder turned to right
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if ccvalue == 1:
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EncoderPlusOne(ccnumber)
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# encoder turned to left
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if ccvalue == 127:
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EncoderMinusOne(ccnumber)
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def EncoderPlusOne(ccnumber):
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global cc
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cc[ccnumber] +=1
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print(cc[ccnumber])
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def EncoderMinusOne(ccnumber):
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global cc
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if cc[ccnumber] >0:
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cc[ccnumber] -= 1
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print(cc[ccnumber])
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def rerange(s,a1,a2,b1,b2):
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return b1 + ((s - a1) * (b2 - b1) / (a2 - a1))
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#
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# mode A
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#
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def modeA():
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print(midifactor(0, channel = cchannel, low =0, high=127, default =1))
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pass
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#
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# mode B
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#
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def modeB():
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print(midifactor14(0, 1, channel = cchannel, low =0, high=16383, default =1))
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pass
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#
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# Main loop
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#
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if __name__ == "__main__":
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note = "33"
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running = True
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try:
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if (note in notejump) == False:
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print('No function for that note')
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sys.exit(0)
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print('running', notejump[note])
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while running:
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# Some redis keys pull
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Current()
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# /noteon redis subscribe event like noteon -> change mode via eval
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MidiSubEvent()
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eval(notejump[str(note)])
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except Exception:
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print(traceback.print_exc())
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except KeyboardInterrupt:
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sys.exit(0)
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finally:
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print("End")
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sys.exit(0)
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midix.check()
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midix.loadConf()
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midix.toKey("/beats","0.0")
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midix.toKey("/bpm",120)
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