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flp_parser_20.py
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flp_parser_20.py
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import argparse
import varint
import struct
from io import BytesIO
parser = argparse.ArgumentParser()
parser.add_argument("input")
args = parser.parse_args()
outfile = open('output.flps', 'w')
with open('flp_eventname.txt') as f:
lines = f.readlines()
eventtable = []
for line in lines:
idname = line.rstrip().split()
if len(idname) > 1:
eventtable.append([idname[0], idname[1]])
else:
eventtable.append([idname[0], '_unknown'])
def readriffdata(riffbytebuffer, offset):
if isinstance(riffbytebuffer, (bytes, bytearray)) == True:
riffbytebuffer = bytearray2BytesIO(riffbytebuffer)
riffobjects = []
riffbytebuffer.seek(0,2)
filesize = riffbytebuffer.tell()
riffbytebuffer.seek(offset)
while filesize > riffbytebuffer.tell():
chunkname = riffbytebuffer.read(4)
chunksize = int.from_bytes(riffbytebuffer.read(4), "little")
chunkdata = riffbytebuffer.read(chunksize)
riffobjects.append([chunkname, chunkdata])
return riffobjects
def datablock(PatternNotes, bytesnumber):
notelistdata = BytesIO()
notelistdata.write(PatternNotes)
notelistdata_filesize = notelistdata.tell()
notelistdata.seek(0)
while notelistdata.tell() < notelistdata_filesize:
print('\t\t' + bytes(notelistdata.read(bytesnumber)).hex())
def parse_patternnotes(patternnotesbytes):
notelistdata = BytesIO()
notelistdata.write(patternnotesbytes)
notelistdata.seek(0,2)
notelistdata_filesize = notelistdata.tell()
notelistdata.seek(0)
notelist = []
while notelistdata.tell() < notelistdata_filesize:
print('\tNote:')
print('\t\tPosition:',int.from_bytes(notelistdata.read(4), "little"))
print('\t\tFlags:',int.from_bytes(notelistdata.read(2), "little"))
print('\t\tRackChannel:',int.from_bytes(notelistdata.read(2), "little"))
print('\t\tDuration:',int.from_bytes(notelistdata.read(4), "little"))
print('\t\tKey:',int.from_bytes(notelistdata.read(4), "little"))
print('\t\tFinePitch:',int.from_bytes(notelistdata.read(1), "little"))
print('\t\tUnknown:',int.from_bytes(notelistdata.read(1), "little"))
print('\t\tRelease:',int.from_bytes(notelistdata.read(1), "little"))
print('\t\tMIDIChannel:',int.from_bytes(notelistdata.read(1), "little"))
print('\t\tPan:',int.from_bytes(notelistdata.read(1), "little"))
print('\t\tVelocity:',int.from_bytes(notelistdata.read(1), "little"))
print('\t\tModX:',int.from_bytes(notelistdata.read(1), "little"))
print('\t\tModY:',int.from_bytes(notelistdata.read(1), "little"))
def parse_FLTrack(trackdata):
fltrackdata = BytesIO()
fltrackdata.write(trackdata)
fltrackdata.seek(0)
print('\tID:',int.from_bytes(fltrackdata.read(4), "little"))
print('\tColor:',fltrackdata.read(4).hex())
print('\tIcon:',int.from_bytes(fltrackdata.read(4), "little"))
print('\tEnabled:',int.from_bytes(fltrackdata.read(1), "little"))
print('\tHeight:',struct.unpack('<f', fltrackdata.read(4))[0])
print('\tLockedToContent:',int.from_bytes(fltrackdata.read(1), "little"))
print('\tMotion:',int.from_bytes(fltrackdata.read(4), "little"))
print('\tPress:',int.from_bytes(fltrackdata.read(4), "little"))
print('\tTriggerSync:',int.from_bytes(fltrackdata.read(4), "little"))
print('\tQueued:',int.from_bytes(fltrackdata.read(4), "little"))
print('\tTolerant:',int.from_bytes(fltrackdata.read(4), "little"))
print('\tPositionSync:',int.from_bytes(fltrackdata.read(4), "little"))
print('\tGrouped:',int.from_bytes(fltrackdata.read(1), "little"))
print('\tLocked:',int.from_bytes(fltrackdata.read(1), "little"))
print('\tRest:',fltrackdata.read())
def parse_arr(arrdata):
flarrdata = BytesIO()
flarrdata.write(arrdata)
flarrdata.seek(0,2)
flarrdata_filesize = flarrdata.tell()
flarrdata.seek(0)
while flarrdata.tell() < flarrdata_filesize:
print('\tItem:')
print('\t\tPosition:',int.from_bytes(flarrdata.read(4), "little"))
print('\t\tPatternBase:',int.from_bytes(flarrdata.read(2), "little"))
print('\t\tItemIndex:',int.from_bytes(flarrdata.read(2), "little"))
print('\t\tLength:',int.from_bytes(flarrdata.read(4), "little"))
print('\t\tTrackIndex:',int.from_bytes(flarrdata.read(4), "little"))
print('\t\tUnknown1:',int.from_bytes(flarrdata.read(2), "little"))
print('\t\tFlags:',int.from_bytes(flarrdata.read(2), "little"))
print('\t\tUnknown2:',int.from_bytes(flarrdata.read(4), "little"))
print('\t\tStartOffset:',int.from_bytes(flarrdata.read(4), "little"))
print('\t\tEndOffset:',int.from_bytes(flarrdata.read(4), "little"))
def parse_automation(autodatabytes):
autodata = BytesIO()
autodata.write(autodatabytes)
autodata.seek(0,2)
autodata_filesize = autodata.tell()
autodata.seek(0)
while autodata.tell() < autodata_filesize:
print('\tPoint:')
print('\t\tPosition:',int.from_bytes(autodata.read(4), "little"))
print('\t\tRackChannel:',int.from_bytes(autodata.read(1), "little")+1)
print('\t\tControl:',autodata.read(3))
print('\t\tValue:',autodata.read(4))
def parse_fxrouting(fxroutingbytes):
fxroutingdata = BytesIO()
fxroutingdata.write(fxroutingbytes)
fxroutingdata.seek(0,2)
fxroutingdata_filesize = fxroutingdata.tell()
fxroutingdata.seek(0)
fxcount = 0
print('\tRoutes: ',end='')
while fxroutingdata.tell() < fxroutingdata_filesize:
fxchannel = int.from_bytes(fxroutingdata.read(1), "little")
if fxchannel == 1:
print(fxcount,end=' ')
fxcount += 1
print()
def parse_flp_Events(riffobj):
eventdatasize = len(riffobj)
eventdatastream = BytesIO()
eventdatastream.write(riffobj)
eventdatastream.seek(0)
outputtable = []
while eventdatastream.tell() < int(eventdatasize):
event_id = int.from_bytes(eventdatastream.read(1), "little")
if event_id <= 63 and event_id >= 0: # int8
outputtable.append([event_id,int.from_bytes(eventdatastream.read(1), "little")])
if event_id <= 127 and event_id >= 64 : # int16
outputtable.append([event_id,int.from_bytes(eventdatastream.read(2), "little")])
if event_id <= 191 and event_id >= 128 : # int32
outputtable.append([event_id,int.from_bytes(eventdatastream.read(4), "little")])
if event_id <= 224 and event_id >= 192 : # text
eventpartdatasize = varint.decode_stream(eventdatastream)
eventpart = eventdatastream.read(eventpartdatasize)
outputtable.append([event_id,eventpart])
if event_id <= 255 and event_id >= 225 : # data
eventpartdatasize = varint.decode_stream(eventdatastream)
eventpart = eventdatastream.read(eventpartdatasize)
outputtable.append([event_id,eventpart])
return outputtable
def linearbyte2percent(inputbyteio):
intvalue = int.from_bytes(inputbyteio.read(4), "little")
smalltime = ((intvalue-100)/65436)*6
outputval = smalltime * smalltime
return intvalue
def parse_envelope(envelopebytes):
envelopedata = BytesIO()
envelopedata.write(envelopebytes)
envelopedata.seek(0)
print('\tFlags:',envelopedata.read(4))
print('\tEnabled:',envelopedata.read(4))
print('\tASDR PreDelay:',linearbyte2percent(envelopedata))
print('\tASDR Attack:',linearbyte2percent(envelopedata))
print('\tASDR Hold:',linearbyte2percent(envelopedata))
print('\tASDR Decay:',linearbyte2percent(envelopedata))
print('\tASDR Suspend:',int.from_bytes(envelopedata.read(4), "little")/128)
print('\tASDR Release:',linearbyte2percent(envelopedata))
print('\tASDR Amount:',int.from_bytes(envelopedata.read(4), "little"))
print('\tLFO Delay:',int.from_bytes(envelopedata.read(4), "little"))
print('\tLFO Attack:',int.from_bytes(envelopedata.read(4), "little"))
print('\tLFO Amount:',int.from_bytes(envelopedata.read(4), "little"))
print('\tLFO Speed:',int.from_bytes(envelopedata.read(4), "little"))
print('\tLFO Shape:',int.from_bytes(envelopedata.read(4), "little"))
print('\tASDR AttackTension:',int.from_bytes(envelopedata.read(4), "little"))
print('\tASDR DecayTension:',int.from_bytes(envelopedata.read(4), "little"))
print('\tASDR ReleaseTension:',int.from_bytes(envelopedata.read(4), "little"))
def parse_InitCtrlRecChan(inbytes):
notelistdata = BytesIO()
notelistdata.write(inbytes)
notelistdata_filesize = notelistdata.tell()
notelistdata.seek(0)
while notelistdata.tell() < notelistdata_filesize:
icrc_dummy = notelistdata.read(4)
icrc_control = notelistdata.read(2)[::-1]
icrc_group = notelistdata.read(2)[::-1]
icrc_value = notelistdata.read(4)
print('\t\t',
bytes(icrc_group).hex(),
bytes(icrc_control).hex(),
bytes(icrc_value).hex(),
str(int.from_bytes(icrc_value, "little", signed=True)).ljust(10),
str(struct.unpack('<f', icrc_value)[0]),
)
fileobject = open(args.input, 'rb')
headername = fileobject.read(4)
rifftable = readriffdata(fileobject, 0)
for riffobj in rifftable:
#print(str(riffobj[0]) + str(len(riffobj[1])))
if riffobj[0] == b'FLhd':
#print(riffobj[1][4:5])
ppq = int.from_bytes(riffobj[1][4:5], "big")
if riffobj[0] == b'FLdt':
flpevents = parse_flp_Events(riffobj[1])
for flpevent in flpevents:
event_id = flpevent[0]
event_data = flpevent[1]
if event_id == 238:
print(lines[event_id].strip())
parse_FLTrack(flpevent[1])
elif event_id == 224:
print(lines[event_id].strip())
parse_patternnotes(flpevent[1])
elif event_id == 223:
print(lines[event_id].strip())
parse_automation(flpevent[1])
elif event_id == 233:
print(lines[event_id].strip())
parse_arr(flpevent[1])
elif event_id == 218:
print(lines[event_id].strip())
parse_envelope(flpevent[1])
elif event_id == 216:
print(lines[event_id].strip())
parse_InitCtrlRecChan(flpevent[1])
elif event_id == 225:
print(lines[event_id].strip())
parse_InitCtrlRecChan(flpevent[1])
elif event_id == 235:
print(lines[event_id].strip())
parse_fxrouting(flpevent[1])
elif event_id <= 255 and event_id >= 192 : # text
print(lines[event_id].strip())
print('\t'+str(event_data.hex()))
else:
print(lines[event_id].strip()+";"+str(flpevent[1]))