def testFreezeThawSimpleVariant(self):
from music21 import freezeThaw
from music21 import variant
from music21 import stream
from music21 import note
s = stream.Stream()
m = stream.Measure()
m.append(note.Note(type='whole'))
s.append(m)
s2 = stream.Stream()
m2 = stream.Measure()
n2 = note.Note('D#4')
n2.duration.type = 'whole'
m2.append(n2)
s2.append(m2)
v = variant.Variant(s2)
s.insert(0, v)
sf = freezeThaw.StreamFreezer(s)
d = sf.writeStr()
st = freezeThaw.StreamThawer()
st.openStr(d)
s = st.stream
def testMIDIParse():
from music21 import converter, common
from music21 import freezeThaw
#a = 'https://github.com/ELVIS-Project/vis/raw/master/test_corpus/prolationum-sanctus.midi'
#c = converter.parse(a)
# c = corpus.parse('bwv66.6', forceSource=True)
# v = freezeThaw.StreamFreezer(c)
# v.setupSerializationScaffold()
# return v.writeStr() # returns a string
import os
a = os.path.join(common.getSourceFilePath(),
'midi',
'testPrimitive',
'test03.mid')
#a = 'https://github.com/ELVIS-Project/vis/raw/master/test_corpus/prolationum-sanctus.midi'
c = converter.parse(a)
v = freezeThaw.StreamFreezer(c)
v.setupSerializationScaffold()
mockType = lambda x: x.__class__.__name__ == 'weakref'
ty = TreeYielder(mockType)
for val in ty.run(c):
print(val, ty.currentLevel())
def x_testSimplePickle(self):
from music21 import freezeThaw
from music21 import corpus
c = corpus.parse('bwv66.6').parts[0].measure(0).notes
# c.show('t')
#
# for el in c:
# storedIds.append(el.id)
# storedSitesIds.append(id(el.sites))
#
# return
n1 = c[0]
n2 = c[1]
sf = freezeThaw.StreamFreezer(c, fastButUnsafe=True)
sf.setupSerializationScaffold()
for dummy in n1.sites.siteDict:
pass
# print(idKey)
# print(n1.sites.siteDict[idKey]['obj'])
for dummy in n2.sites.siteDict:
pass
# print(idKey)
# print(n2.sites.siteDict[idKey]['obj'])
dummy = pickle.dumps(c, protocol=-1)
def fromStream(self, thisStream, mode=None):
if mode is None:
mode = self.mode
if (thisStream.metadata is not None
and thisStream.metadata.title != ""):
title = thisStream.metadata.title
else:
title = "Music21 Fragment"
sf = freezeThaw.StreamFreezer(thisStream)
## recursive data structures will be expanded up to a high depth -- make sure there are none...
data = sf.writeStr(fmt='jsonpickle')
dataSplit = self.splitLongJSON(data)
if mode == 'json':
return data
elif mode == 'jsonSplit':
return dataSplit
elif mode == 'jsbody':
return self.getJSBody(dataSplit)
elif mode == 'jsbodyScript':
return self.getJSBodyScript(dataSplit)
elif mode == 'html':
return self.getHTML(dataSplit, title)
else:
raise VexflowToM21JException("Cannot deal with mode: %r" % mode)
def testBigCorpus(self):
from music21 import corpus, converter
#import time
#print time.time() # 8.3 sec from pickle; 10.3 sec for forceSource...
s = corpus.parse('beethoven/opus133') #, forceSource = True)
#print time.time() # purePython: 33! sec; cPickle: 25 sec
#data = converter.freezeStr(s, fmt='pickle')
#print time.time() # cPickle: 5.5 sec!
sf = freezeThaw.StreamFreezer(s, fastButUnsafe=True)
data = sf.writeStr()
#print time.time() # purePython: 9 sec; cPickle: 3.8 sec!
unused_s2 = converter.thawStr(data)
def testMIDIParse():
from music21 import converter
from music21 import freezeThaw
a = 'https://github.com/ELVIS-Project/vis/raw/master/test_corpus/prolationum-sanctus.midi'
c = converter.parse(a)
v = freezeThaw.StreamFreezer(c)
v.setupSerializationScaffold()
#return v.writeStr() # returns a string
mockType = lambda x: x.__class__.__name__ == 'weakref'
ty = TreeYielder(mockType)
for val in ty.run(v):
print(val, ty.currentLevel())
def testSerializationScaffoldA(self):
from music21 import note, stream
from music21 import freezeThaw
n1 = note.Note()
s1 = stream.Stream()
s2 = stream.Stream()
s1.append(n1)
s2.append(n1)
sf = freezeThaw.StreamFreezer(s2, fastButUnsafe=False)
sf.setupSerializationScaffold()
# test safety
self.assertTrue(s2.hasElement(n1))
self.assertTrue(s1.hasElement(n1))
def x_testFreezeThawPickle(self):
from music21 import freezeThaw
from music21 import corpus
c = corpus.parse('luca/gloria')
# c.show('t')
sf = freezeThaw.StreamFreezer(c, fastButUnsafe=True)
d = sf.writeStr()
# print(d)
st = freezeThaw.StreamThawer()
st.openStr(d)
s = st.stream
# test to see if we can find everything
for dummy in s.recurse():
pass
def testFreezeThawVariant(self):
from music21 import freezeThaw
from music21 import corpus
from music21 import variant
from music21 import stream
from music21 import note
c = corpus.parse('luca/gloria')
data2M2 = [('f', 'eighth'), ('c', 'quarter'), ('a', 'eighth'),
('a', 'quarter')]
stream2 = stream.Stream()
m = stream.Measure()
for pitchName, durType in data2M2:
n = note.Note(pitchName)
n.duration.type = durType
m.append(n)
# stream2.append(n)
stream2.append(m)
# c.show('t')
variant.addVariant(c.parts[0],
6.0,
stream2,
variantName='rhythmic_switch',
replacementDuration=3.0)
# test Variant is in stream
unused_v1 = c.parts[0].getElementsByClass('Variant')[0]
sf = freezeThaw.StreamFreezer(c, fastButUnsafe=True)
# sf.v = v
d = sf.writeStr()
# print(d)
# print('thawing.')
st = freezeThaw.StreamThawer()
st.openStr(d)
s = st.stream
# s.show('lily.pdf')
p0 = s.parts[0]
variants = p0.getElementsByClass('Variant')
v2 = variants[0]
self.assertEqual(v2._stream[0][1].offset, 0.5)
