def GScsv2RDF(infilename, outfilename, format="xml", withdescriptions=False):
if withdescriptions:
commonchords = ConjunctiveGraph()
commonchords.load("CommonChords.rdf")
extrachords = ConjunctiveGraph()
lines = open(infilename).readlines()
#
# Initial model bits
#
mi = mopy.MusicInfo()
homepage = mopy.foaf.Document("http://sourceforge.net/projects/motools")
mi.add(homepage)
program = mopy.foaf.Agent()
program.name = "GScsv2RDF.py"
program.homepage = homepage
mi.add(program)
tl = TimeLine("#tl")
tl.label = "Timeline derived from "+infilename
tl.maker = program
mi.add(tl)
[artistStr, titleStr] = [f.strip() for f in lines[0].split("\t")]
# Add artist & title metadata
signal = Signal()
signal.time = sig_int = Interval()
sig_int.label="Whole signal interval";
sig_int.beginsAtDuration = secondsToXSDDuration(0);
sig_int.onTimeLine = tl
signal.published_as = track = Track()
artist = MusicArtist()
artist.made = track
artist.name = artistStr
track.title = titleStr
mi.add(sig_int)
mi.add(signal)
mi.add(track)
mi.add(artist)
lineNum = 1
segmentNum = 0
thisSegment_i = None
chordSymbol=''
t_secs = 0.0
for line in lines[1:]:
# print "parsing line "+str(lineNum)
try:
lastChordSymbol = chordSymbol
t_secs = getTimestamp(line)
chordSymbol = getChordSymbol(line)
if chordSymbol != lastChordSymbol:
# print " handling new chord symbol"
segmentNum += 1
lastSegment_i = thisSegment_i
thisSegment_i = Interval("#i_"+str(segmentNum))
thisSegment_i.beginsAtDuration = secondsToXSDDuration(t_secs)
if lastSegment_i != None:
# print " terminating last interval"
lastSegment_i.endsAtDuration = secondsToXSDDuration(t_secs)
thisSegment_i.intervalAfter = lastSegment_i
lastSegment_i.intervalBefore = thisSegment_i
mi.add(thisSegment_i)
chordURI = "http://purl.org/ontology/chord/symbol/"+chordSymbol.replace("#","s").replace(",","%2C")
if withdescriptions and \
len(list(commonchords.predicate_objects(URIRef(chordURI)))) == 0 and \
len(list(extrachords.predicate_objects(URIRef(chordURI)))) == 0:
# Deref to grab chord info
print "loading <"+chordURI+">..."
extrachords.load(chordURI)
c = Chord(chordURI)
c_event = ChordEvent("#ce_"+str(segmentNum))
c_event.chord = c
c_event.time = thisSegment_i
c_event.label = chordSymbol
mi.add(c); mi.add(c_event);
# print " added new chord event for "+chordURI
except Exception, e:
print("ERROR : Problem parsing input file at line "+str(lineNum)+" !\n")
raise
lineNum+=1
def mma2RDF(infilename, outfilename, format="xml", audiofilename=None, withdescriptions=False):
if withdescriptions:
commonchords = ConjunctiveGraph()
commonchords.load("CommonChords.rdf")
extrachords = ConjunctiveGraph()
# Compile mma file and grab output
lines = os.popen(mmabin + ' "' + infilename + '" -nrw').readlines()
print "\n".join(lines)
#
# Initial model bits
#
mi = mopy.MusicInfo()
homepage = mopy.foaf.Document("http://sourceforge.net/projects/motools")
mi.add(homepage)
program = mopy.foaf.Agent()
program.name = "mma2RDF.py"
program.homepage = homepage
mi.add(program)
tl = TimeLine("#tl")
tl.label = "Timeline derived from " + infilename
tl.maker = program
mi.add(tl)
# extract tempo from mma file
tempo = 60
mmafile = open(infilename, "r")
for line in mmafile:
if line.startswith("Tempo "):
tempo = int(line[len("Tempo ") :].strip().split()[0])
print "Found tempo = " + str(tempo)
break
lineNum = 1
thisBar_i = None
i = None
t_secs = 0.0
for line in lines:
print "parsing line " + str(lineNum)
try:
# i = None
barNum = getBarNum(line)
lastBar_i = thisBar_i
thisBar_i = Interval("#i_" + str(barNum))
thisBar_i.beginsAtDuration = secondsToXSDDuration(t_secs)
if lastBar_i != None:
lastBar_i.endsAtDuration = secondsToXSDDuration(t_secs)
thisBar_i.intervalAfter = lastBar_i
lastBar_i.intervalBefore = thisBar_i
mi.add(thisBar_i)
chordMMASymbols = getChordSymbols(line)
beatNum = 1
for chordMMASymbol in chordMMASymbols:
if chordMMASymbol != "/":
print " handling new chord symbol"
if i != None:
print " terminating last interval"
i.endsAtDuration = secondsToXSDDuration(t_secs)
mi.add(i)
i = Interval("#i_" + str(barNum) + "_" + str(beatNum))
i.onTimeLine = tl
i.beginsAtDuration = secondsToXSDDuration(t_secs)
chordURI = "http://purl.org/ontology/chord/symbol/" + mmaSymbolToChordSymbol(
chordMMASymbol
).replace("#", "s").replace(",", "%2C")
if (
withdescriptions
and len(list(commonchords.predicate_objects(URIRef(chordURI)))) == 0
and len(list(extrachords.predicate_objects(URIRef(chordURI)))) == 0
):
# Deref to grab chord info
print "loading <" + chordURI + ">..."
extrachords.load(chordURI)
c = Chord(chordURI)
c_event = ChordEvent("#ce_" + str(barNum) + "_" + str(beatNum))
c_event.chord = c
c_event.time = i
c_event.label = mmaSymbolToChordSymbol(chordMMASymbol)
mi.add(c)
mi.add(c_event)
mi.add(i)
print " added new chord event for " + chordURI
else:
if beatNum == 1: # Need to continue the last seen chord
print " continuing last bar's chord"
# i = Interval("i_"+str(barNum)+"_"+str(beatNum))
# i.onTimeLine = tl
# i.beginsAtDuration = secondsToXSDDuration(t_secs)
# c_event = ChordEvent("ce_"+str(barNum)+"_"+str(beatNum))
# c_event.chord = c
# c_event.time = i
# mi.add(c_event); mi.add(i)
beatNum += 1
t_secs += 60.0 / tempo
except Exception, e:
print ("ERROR : Problem parsing input file at line " + str(lineNum) + " !\n")
raise
lineNum += 1