def flatmidi(r):
#(control,program, lasttime, event)
def transform_context(c,e):
if (e.type=='ControlChangeEvent'):
c[0][e.track]=(e.value,c[0][e.track][1])
c=(c[0],None)
elif (e.type=='ProgramChangeEvent'):
c[0][e.track]=(c[0][e.track][0],e.value)
c=(c[0],None)
else:
c=(c[0],[(c[0][e.track], e)])
return c
#r=midi.midi.read_midifile("/jfli/inputs/karaoke/kar/Bureau/Dutronc_J_._J_aime_les_filles.kar")
lentracks=len(r.tracklist)
context=([ (0,0) ] * lentracks,[])
return ifilter(lambda x:(x!=None),imap(lambda x:x[1],ireduce(transform_context,r.iterevents(), context )))
def totab(m):
from pycvf.lib.misc.ireduce import ireduce
def _tonotes(c,n):
if (n.velocity==0):
c[0][(n.pitch,n.track)]=n.tick
return [c[0],None]
else:
try:
r=((n.tick,n.pitch),(c[0][(n.pitch,n.track)],n.pitch),n.velocity,n.track)
c[0][(n.pitch,n.track)]=n.tick
return [c[0],r]
except KeyError:
r=((n.tick,n.pitch),(min(midireader.midifile.endoftrack.tick,n.tick+100),n.pitch),n.velocity,n.track)
c[0][(n.pitch,n.track)]=n.tick
return [c[0],r]
l=filter(lambda x:x.type[:4]=="Note", m.iterevents())
l.reverse()
l=filter(lambda x:x!=None,map(lambda x:x[1],ireduce(_tonotes,l,[{},None])))
l.reverse()
return l
