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Copy pathPFivetoMIDI.py
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PFivetoMIDI.py
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import struct
import os
from tkinter import filedialog as fd
import mido
file = fd.askopenfilename()
base, ext = os.path.splitext(file)
outDir = base+"/"
if os.path.exists(outDir) == False:
os.mkdir(outDir)
# Function to add MIDI messages to the track
def add_midi_message(message_type, channel, data1, data2, delta_time):
if message_type == 'program_change':
track.append(mido.Message('program_change', program=data1, channel=channel, time=delta_time))
elif message_type == 'control_change':
track.append(mido.Message('control_change', channel=channel, control=data1, value=data2, time=0))
elif message_type == 'note_on':
track.append(mido.Message('note_on', note=data1, velocity=data2, channel=channel, time=delta_time))
elif message_type == 'note_off':
track.append(mido.Message('note_off', note=data1, velocity=0, channel=channel, time=delta_time))
elif message_type == 'pitch_wheel':
track.append(mido.Message('pitchwheel', channel=channel, pitch=data1, time=delta_time))
with open(file, "rb") as f:
f.seek(0xA0)
ROMName = f.read(0xC).decode("UTF-8")
ROMCode = f.read(0x4).decode("UTF-8")
Count = 0
#First check (most common, DAT3 is likely the version number for the engine)
for i in range(int(os.path.getsize(file)/4)):
DAT = f.read(4)
if DAT == b'\x00\x00\x00\x00':
DAT2 = f.read(4)
if DAT2 == b'\x01\x01\x00\x00':
DAT3 = f.read(4)
if DAT3 == b'\x02\x00\x00\x00':
Count = struct.unpack("<I", f.read(4))[0]
Offset = struct.unpack("<I", f.read(4))[0]-0x08000000
print(ROMName,"("+ROMCode+")"+"\nSong count =",Count,"\nStart offset =",hex(Offset))
f.seek(Offset)
break
if Count == 0: #Check 2
f.seek(0)
for i in range(int(os.path.getsize(file)/4)):
DAT = f.read(4)
if DAT == b'\x00\x00\x00\x00':
DAT2 = f.read(4)
if DAT2 == b'\x01\x01\x00\x00':
DAT3 = f.read(4)
if DAT3 == b'\x03\x00\x00\x00':
Count = struct.unpack("<I", f.read(4))[0]
Offset = struct.unpack("<I", f.read(4))[0]-0x08000000
print(ROMName,"("+ROMCode+")"+"\nSong count =",Count,"\nStart offset =",hex(Offset))
f.seek(Offset)
break
if Count == 0: #Check 3
f.seek(0)
for i in range(int(os.path.getsize(file)/4)):
DAT = f.read(4)
if DAT == b'\x00\x00\x00\x00':
DAT2 = f.read(4)
if DAT2 == b'\x01\x01\x00\x00':
DAT3 = f.read(4)
if DAT3 == b'\x04\x00\x00\x00':
Count = struct.unpack("<I", f.read(4))[0]
Offset = struct.unpack("<I", f.read(4))[0]-0x08000000
print(ROMName,"("+ROMCode+")"+"\nSong count =",Count,"\nStart offset =",hex(Offset))
f.seek(Offset)
break
for i in range(Count):
Name = ""
A = 1
TCount = struct.unpack("<I", f.read(4))[0]
TPTROffset = struct.unpack("<I", f.read(4))[0]-0x08000000
TNameOffset = struct.unpack("<I", f.read(4))[0]-0x08000000
last = f.tell()
f.seek(TNameOffset)
while A != 0:
A = f.read(1)[0]
Letter = chr(A)
Name = Name+Letter
trackID = 0
f.seek(TPTROffset)
#print("_______________________________________________________")
#print("Song name =",Name)
for i in range(TCount):
mid = mido.MidiFile(type=1)
track = mido.MidiTrack()
mid.tracks.append(track)
track.append(mido.MetaMessage('set_tempo', tempo=5000000))
TOffset = struct.unpack("<I", f.read(4))[0]-0x08000000
TInstrumentID = f.read(4)[0]#struct.unpack("<I", f.read(4))[0]
add_midi_message('program_change', 0, TInstrumentID, None, 0)
prevTrack = f.tell()
f.seek(TOffset)
check = 0x10
lastNote = 0
try:
while check == 0x10:
dCheck = 0
check = f.read(1)[0]
SEQOffset = struct.unpack("<I", f.read(4))[0]-0x08000000
#print(f"{Name} {hex(SEQOffset)} {trackID} {hex(f.tell())}")
#input()
SEQDur1 = struct.unpack(">BB", f.read(2))[1]
while dCheck != 0x10:
dCheck = f.read(1)[0]
if dCheck != 0x10:
f.seek(-1, 1)
SEQDur1 += struct.unpack(">BB", f.read(2))[1]
#print(SEQDur1)
#input()
#if dCheck == 0x10:
f.seek(-1, 1)
lastSEQ = f.tell()
f.seek(SEQOffset)
ended = False
reads = 0
totalNoteLength = 0
while ended != True:
CMD1 = f.read(1)[0]
if totalNoteLength >= SEQDur1: #Forcefully end this if the data being parsed is irrelevant
break
if CMD1 == 0 and reads == 0:
add_midi_message('note_off', 0, 0, 127, SEQDur1)
ended = True
break
elif CMD1 == 0 and reads > 0:
CMD2 = f.read(1)[0]
if CMD2 == 0:
endLength = SEQDur1-totalNoteLength
if endLength > 0:
add_midi_message('note_off', 0, lastNote, 127, endLength)
ended = True
break
else:
add_midi_message('note_off', 0, lastNote, 127, CMD2)
totalNoteLength+=CMD2
if CMD1 in range(1, 0xF): #End of note and delay time
add_midi_message('note_off', 0, lastNote, 127, CMD1)
totalNoteLength+=CMD1
if CMD1 in range(0x10, 0x1F):
"UNKNOWN!"
if CMD1 in range(0x20, 0x2C):
note = (CMD1-0x20)+note_adder
ext = f.read(1)[0] #Every note is followed up by an unknown value
add_midi_message('note_on', 0, note, 127, 0) #Start the note
lastNote = note
if CMD1 == 0x43:
noteOffLength = f.read(1)[0]
if noteOffLength == 0:
#print("Broke!")
#input()
break
add_midi_message('note_off', 0, lastNote, 127, noteOffLength)
totalNoteLength+=noteOffLength
if CMD1 in range(0x50, 0x58): #Set key range
note_adder = (CMD1-0x50)*0xC
note = f.read(1)[0]-0x20+note_adder
add_midi_message('note_on', 0, note, 127, 0) #Start the note
lastNote = note
if CMD1 == 0x84: #Start of pitch bend
data = f.read(3)
add_midi_message('note_off', 0, lastNote, 127, data[1])
add_midi_message('note_off', 0, lastNote, 127, data[2])
if CMD1 == 0x85: #End of pitch bend
endByte = f.read(1)
bendDuration = f.read(1)[0]
if bendDuration == 0:
bendDuration = f.read(1)[0]
add_midi_message('note_off', 0, lastNote, 127, bendDuration)
#if CMD1 in range(0x80, 0x8F): #Special events like pitch bends
#f.read(1)
reads+=1
f.seek(lastSEQ)
except:
"ERROR"
base, ext = os.path.splitext(file)
if Name[-1].encode('utf-8') == b'\x00':
Name = Name[0:len(Name)-1]
output_path = f"{outDir}{Name}_converted_{trackID}.mid"
mid.save(output_path)
#print(f"Conversion complete! MIDI file saved as {output_path}")
trackID+=1
f.seek(prevTrack)
#print("\nTrack offset =",hex(TOffset),"\nInstrument ID =",hex(TInstrumentID))
f.seek(last)
print("_______________________________________________________")
input("Press enter to close")