141 lines
3.0 KiB
Python
141 lines
3.0 KiB
Python
#!/usr/bin/python3
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# -*- coding: utf-8 -*-
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# -*- mode: Python -*-
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'''
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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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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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Make sure python 3 is installed on your system.
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mkdir build
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cd build
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cmake ..
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cmake --build .
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'''
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from libs import midix
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import sys
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prevphase = 0
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bpm = 120
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def Start():
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global lnk
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from libs import link
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print("Link ENABLED")
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lnk = link.Link(120)
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lnk.enabled = True
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lnk.startStopSyncEnabled = True
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linked = True
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def RedOSC(tempo_str, beats_str):
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print()
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print("Link : BPM " +tempo_str+" Beat "+str(beats_str) + ' \r')
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#sys.stdout.flush()
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# redis key : "/beat" value : currentbeat
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if midix.toKey('/beat', beats_str)==True:
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pass
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#print("redis :", '/beat', beats_str)
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# OSC : /midi/cc midichannel ccnumber value
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midix.SendOSC('/beat', [beats_str])
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#print("osc :",'/beat', [beats_str])
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# redis key : "/bpm" value : newbpm
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if midix.toKey('/bpm', bpm)==True:
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pass
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#print("redis :", '/bpm', bpm)
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# OSC : /bpm newbpm
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midix.SendOSC('/bpm', [bpm])
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#print("osc :",'/bpm', [bpm])
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def BeatEvent():
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global lnk, prevphase
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lnkstr = lnk.captureSessionState()
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link_time = lnk.clock().micros();
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tempo_str = '{0:.2f}'.format(lnkstr.tempo())
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bpm = float(tempo_str)
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#beatstep.SendOSCUI('/bpm', [bpm])
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beats_str = '{0:.2f}'.format(lnkstr.beatAtTime(link_time, 0))
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playing_str = str(lnkstr.isPlaying()) # always False ???
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phase = lnkstr.phaseAtTime(link_time, 4)
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# new beat ?
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if int(phase) != prevphase:
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prevphase = int(phase)
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RedOSC(tempo_str, beats_str)
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currentbeat = float(beats_str)
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#midix.SendAU('/aurora/beats', beats_str)
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#AllStatus("Beat "+str(beats_str))
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# New external bpm saved in redis key ?
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redbpm = float(midix.fromKey("/bpm"))
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if bpm != redbpm:
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print("New external BPM -> Link", redbpm)
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newtempo(redbpm)
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# Change current Link Tempo.
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def newtempo(tempo):
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global lnk
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if linked == True:
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lnk.enabled = False
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lnk.startStopSyncEnabled = False
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lnk = link.Link(tempo)
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lnk.enabled = True
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lnk.startStopSyncEnabled = True
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bpm = tempo
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print("New BPM to Link", bpm)
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RedOSC(str(tempo), "0.0")
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'''
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# redis key : "/bpm" value : newbpm
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if midix.toKey('/bpm', bpm)==True:
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print("redis :", '/bpm', bpm)
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# OSC : /bpm newbpm
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midix.SendOSC('/bpm', [bpm])
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print("osc :",'/bpm', [bpm])
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'''
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else:
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print("Link is disabled")
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# increase or decrease BPM
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def BPMAdj(val1, keyname):
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# + 1
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if val1 == 1:
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newtempo(bpm+1)
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# -1
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if val1 == 127 and bpm > 0:
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newtempo(bpm-1)
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