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import struct
class JAUAudioArcInterpreter:
def __init__(self,file):
self.offset = 0
self.file = file
self.nameTable = {"Sections": []}
def readU32_string(self):
val = struct.unpack(">4s",self.file[self.offset:self.offset+4])[0]
self.offset += 4
return val
def readU32_(self):
val = struct.unpack(">I",self.file[self.offset:self.offset+4])[0]
self.offset += 4
return val
def readU8_(self):
val = struct.unpack(">B",self.file[self.offset:self.offset+1])[0]
self.offset += 1
return val
def getString(self,bytes,offset):
string = bytes[offset:]
string = string[:string.index(0)]
return string
# More JAudio Decomp is required for this
def readWS(self,bank_no,offset,waveArc):
# print(bank_no)
# print(offset)
# print(waveArc)
size = struct.unpack(">I",self.file[offset+4:offset+8])[0]
# print(size)
wsys = self.file[offset:offset+size]
someNumber,archiveBankOffset,ctrlGroupOffset = struct.unpack(">III",wsys[12:24])
# print(ctrlGroupOffset)
def readBNK(self,param_1,param_2):
pass
def beginBNKList(self,param_1,param_2):
pass
def endBNKList(self):
pass
def readBSC(self,param_1,param_2):
pass
def readBST(self,offset,size):
# print(offset)
bst = self.file[offset:offset+size]
numSections = struct.unpack(">I",bst[32:36])[0]
sectionOffsets = []
for i in range(numSections):
sectionOffsets.append(struct.unpack(">I",bst[36+(i*4):40+(i*4)])[0])
for sectionOffset in sectionOffsets:
numGroups = struct.unpack(">I",bst[sectionOffset:sectionOffset+4])[0]
groupOffsets = []
for i in range(numGroups):
groupOffsets.append(struct.unpack(">I",bst[sectionOffset+4+(i*4):sectionOffset+8+(i*4)])[0])
# print(groupOffsets)
for groupOffset in groupOffsets:
numEntries,unk = struct.unpack(">II",bst[groupOffset:groupOffset+8])
entries = []
for i in range(numEntries):
val = struct.unpack(">I",bst[groupOffset+8+(i*4):groupOffset+12+(i*4)])[0]
entries.append({"Type":val>>24,"Offset":val&0xFFFFFF})
for entry in entries:
# print(f"{entry['Type']} {entry['Offset']}")
match entry["Type"] & 0xf0:
case 0x50: #SFX
priority,unk,pad,swBit,volume = struct.unpack(">BBHIf",bst[entry["Offset"]:entry["Offset"]+12])
# print(f"{priority:01x} {unk:01x} {pad:02x} {swBit:04x} {volume}")
case 0x60: #Arc BGM
priority,unk,arcIndex = struct.unpack(">BBH",bst[entry["Offset"]:entry["Offset"]+4])
# print(f"{priority:01x} {unk:01x} Arc Index: {arcIndex}")
case 0x70: #Streams
priority,unk,resourceID,stringOffset = struct.unpack(">BBHI",bst[entry["Offset"]:entry["Offset"]+8])
# print(f"{priority:01x} {unk:01x} {resourceID:02x} {stringOffset:04x} ")
streamPath = self.getString(bst,stringOffset)
# print(f"{streamPath}")
def readBSTN(self,offset,size):
# print(param_1)
bstn = self.file[offset:offset+size]
numSections = struct.unpack(">I",bstn[32:36])[0]
# print(numSections)
sectionOffsets = []
for i in range(numSections):
sectionOffsets.append(struct.unpack(">I",bstn[36+(i*4):40+(i*4)])[0])
# print(sectionOffsets)
sections = []
for offset in sectionOffsets:
numGroups,sectionNameOffset = struct.unpack(">II",bstn[offset:offset+8])
sectionName = self.getString(bstn,sectionNameOffset)
# print(f"Section {sectionName} has {numGroups} groups")
section = {"Section Name":sectionName.decode('ascii'),
"Groups":[]}
groupOffsets = []
for i in range(numGroups):
groupOffsets.append(struct.unpack(">I",bstn[offset+8+(i*4):offset+12+(i*4)])[0])
groups = []
for groupOffset in groupOffsets:
groupSize,groupNameOffset = struct.unpack(">II",bstn[groupOffset:groupOffset+8])
groupName = self.getString(bstn,groupNameOffset)
group = {"Group Name":groupName.decode('ascii'),
"Names": []}
# print(f"Group {groupName} has {groupSize} entries")
nameOffsets = []
for i in range(groupSize):
nameOffsets.append(struct.unpack(">I",bstn[groupOffset+8+(i*4):groupOffset+12+(i*4)])[0])
names = []
for nameOffset in nameOffsets:
names.append(self.getString(bstn,nameOffset).decode("ascii"))
# print(names)
group["Names"] = names
groups.append(group)
section["Groups"] = groups
sections.append(section)
self.nameTable["Sections"] = sections
def readBMS(self,param_1,param_2,param_3):
pass
def readBMS_fromArchive(self):
pass
def newVoiceBank(self,param_1,param_2):
pass
def newDynamicSeqBlock(self,param_1):
pass
def readBSFT(self,param_1):
pass
def readMaxSeCategory(self,param_1,param_2,param_3):
pass
def parse(self):
if self.readU32_string() != b'AA_<':
return False
while self.readCommand_() == True:
pass
return True
def readCommand_(self):
command = self.readU32_string()
print(command)
match command:
case b'>_AA':
return False
case b'ws ':
self.readWS(self.readU32_(),self.readU32_(),self.readU32_())
case b'bnk ':
self.readBNK(self.readU32_(),self.readU32_())
case b'bl_<':
self.beginBNKList(self.readU32_(),self.readU32_())
case b'>_bl':
self.endBNKList()
case b'bsc ':
start = self.readU32_()
end = self.readU32_()
self.readBSC(start,end-start)
case b'bst ':
start = self.readU32_()
end = self.readU32_()
self.readBST(start,end-start)
case b'bstn':
start = self.readU32_()
end = self.readU32_()
self.readBSTN(start,end-start)
case b'bms ':
param_1 = self.readU32_()
start = self.readU32_()
end = self.readU32_()
self.readBMS(param_1,start,end-start)
case b'bmsa':
self.readBMS_fromArchive(self.readU32_())
case b'vbnk':
self.newVoiceBank(self.readU32_(),self.readU32_())
case b'dsqb':
self.newDynamicSeqBlock(self.readU32_())
case b'bsft':
self.readBSFT(self.readU32_())
case b'sect':
self.readU8_()
self.readMaxSeCategory(self.readU8_(),self.readU8_(),self.readU8_())
return True
def main():
baa = JAUAudioArcInterpreter(open("Z2Sound.baa","rb").read())
baa.parse()
if __name__ == "__main__":
main()
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