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Update pzztool.py
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tmpz23
GitHub
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commit
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165
pzztool.py
165
pzztool.py
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@ -1,12 +1,16 @@
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#!/usr/bin/env python3
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__version__ = "1.0"
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__version__ = "1.1"
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__author__ = "rigodron, algoflash, GGLinnk"
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__OriginalAutor__ = "infval"
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from os import listdir, path, stat
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from os import listdir
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from pathlib import Path
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from struct import unpack, pack
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from math import ceil
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BIT_COMPRESSION_FLAG = 0x40000000
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FILE_LENGTH_MASK = 0x3FFFFFFF
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CHUNK_SIZE = 0x800
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def pzz_decompress(compressed_bytes: bytes):
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uncompressed_bytes = bytearray()
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@ -49,7 +53,6 @@ def pzz_decompress(compressed_bytes: bytes):
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return uncompressed_bytes
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def bytes_align(bout: bytes):
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success = False
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while not success:
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@ -58,7 +61,6 @@ def bytes_align(bout: bytes):
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if hex(address).endswith("00"):
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break
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def pzz_compress(b):
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bout = bytearray()
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size_b = len(b) // 2 * 2
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@ -134,32 +136,31 @@ def pzz_compress(b):
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return bout
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def pzz_unpack(path, dir_path):
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def pzz_unpack(pzz_path):
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# Script BMS pour les pzz de ps2 (GioGio's adventure) -> https://zenhax.com/viewtopic.php?f=9&t=8724&p=39437#p39437
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unpacked_pzz_path = Path( Path(pzz_path).stem )
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unpacked_pzz_path.mkdir(exist_ok=True)
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with open(path, "rb") as f:
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with open(pzz_path, "rb") as pzz_file:
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# file_count reçoit le nombre de fichiers présent dans le PZZ :
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file_count, = unpack(">I", f.read(4)) # On lit les 4 premiers octets (uint32 big-endian)
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file_count, = unpack(">I", pzz_file.read(4)) # On lit les 4 premiers octets (uint32 big-endian)
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# files_descriptors reçoit un tuple avec l'ensemble des descripteurs de fichiers (groupes d'uint32 big-endian)
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files_descriptors = unpack(">{}I".format(file_count), f.read(file_count * 4))
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files_descriptors = unpack(">{}I".format(file_count), pzz_file.read(file_count * 4))
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print("File count:", file_count)
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offset = 0x800
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offset = CHUNK_SIZE
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for i, file_descriptor in enumerate(files_descriptors): # on parcours le tuple de descripteurs de fichiers
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is_compressed = (file_descriptor & 0x40000000) != 0 # Le bit 30 correspond au flag de compression (bits numérotés de 0 à 31)
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print(file_descriptor)
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is_compressed = (file_descriptor & BIT_COMPRESSION_FLAG) != 0 # Le bit 30 correspond au flag de compression (bits numérotés de 0 à 31)
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# file_descriptor reçoit maintenant les 30 premiers bits : (la taille / 0x800)
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file_descriptor &= 0x3FFFFFFF
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print(file_descriptor)
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# file_descriptor reçoit maintenant les 30 premiers bits : (la taille / CHUNK_SIZE)
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file_descriptor &= FILE_LENGTH_MASK
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# file_len reçoit la taille du fichier
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# la taille du fichier est un multiple de 0x800, on paddera avec des 0 jusqu'au fichier suivant
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file_len = file_descriptor * 0x800 # file_len contient alors la taille du fichier en octets
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# la taille du fichier est un multiple de CHUNK_SIZE, on paddera avec des 0 jusqu'au fichier suivant
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file_len = file_descriptor * CHUNK_SIZE # file_len contient alors la taille du fichier en octets
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# Si la taille est nulle, on passe au descripteur de fichier suivant
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if file_len == 0:
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@ -171,98 +172,68 @@ def pzz_unpack(path, dir_path):
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comp_str = "_compressed"
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# On forme le nom du nouveau fichier que l'on va extraire
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filename = "{}_{:03}{}".format(Path(path).stem, i, comp_str)
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file_path = (Path(dir_path) / filename).with_suffix(".dat")
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filename = "{}_{:03}{}".format(Path(pzz_path).stem, i, comp_str)
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file_path = (Path(unpacked_pzz_path) / filename).with_suffix(".dat")
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print("Offset: {:010} - {}".format(offset, file_path))
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# On se positionne au début du fichier dans l'archive
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f.seek(offset)
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pzz_file.seek(offset)
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# On extrait notre fichier
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file_path.write_bytes(f.read(file_len))
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file_path.write_bytes(pzz_file.read(file_len))
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# Enfin, on ajoute la taille du fichier afin de pointer sur le fichier suivant
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# La taille du fichier étant un multiple de 0x800, on aura complété les 2048 octets finaux avec des 0x00
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# La taille du fichier étant un multiple de CHUNK_SIZE, on aura complété les 2048 octets finaux avec des 0x00
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offset += file_len
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def pzz_pack(src, dir_path):
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bout = bytearray()
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filebout = bytearray()
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file_count = 0;
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files = []
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def pzz_pack(src_path):
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# On récupère les fichiers du dossier à compresser
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src_files = listdir(src_path)
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linkPath = path.normpath(dir_path)
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linkFiles = [f for f in listdir(linkPath) if path.isfile(path.join(linkPath, f))]
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# On récupère le nombre total de fichiers
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file_count = int(src_files[-1].split("_")[1][0:3]) + 1
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for file in linkFiles:
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if (str(src)[12:-18] in file):
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file_count += 1
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files.append(file)
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print(str(file_count) + " files to pack in " + str(src_path.with_suffix(".pzz")))
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is_odd_number = (file_count % 2) != 0
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with src_path.with_suffix(".pzz").open("wb") as pzz_file :
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# On écrit file_count au début de header
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pzz_file.write(file_count.to_bytes(4, byteorder='big'))
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if (file_count == 6 or file_count == 12):
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file_count += 4
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for i, file in enumerate(files):
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count = int(0x40 << 24) + int(path.getsize(linkPath + "/" + file) / 0x800)
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# On écrit les file_descriptor dans le header du PZZ pour chaque fichier
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last_index = 0 # permet d'ajouter les file_descriptor=NULL
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for src_file_name in src_files :
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index = int(src_file_name.split("_")[1][0:3])
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is_compressed = ( len(src_file_name.split("_compressed")) > 1 )
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if (i == 1 or i == 3 or i == 5 or i == 7):
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filebout.extend(b"\x00\x00\x00\x00")
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filebout.extend(pack(">I", count))
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else:
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filebout.extend(pack(">I", count))
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# On ajoute les file_descriptor=NULL
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while(last_index < index):
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pzz_file.write(b"\x00\x00\x00\x00")
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last_index += 1
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file_count = pack(">I", file_count)
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bout.extend(file_count)
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bout.extend(filebout)
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# file_descriptor = arrondi supérieur de la taille / CHUNK_SIZE
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file_descriptor = ceil( (src_path / src_file_name).stat().st_size / CHUNK_SIZE)
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elif (file_count == 6 or file_count == 14):
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file_count += 2
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for i, file in enumerate(files):
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count = int(0x40 << 24) + int(path.getsize(linkPath + "/" + file) / 0x800)
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# On ajoute le flag de compression au file_descriptor
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if is_compressed :
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file_descriptor |= BIT_COMPRESSION_FLAG
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if (i == 1 or i == 3):
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filebout.extend(b"\x00\x00\x00\x00")
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filebout.extend(pack(">I", count))
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else:
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filebout.extend(pack(">I", count))
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# On ecrit le file_descriptor
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pzz_file.write(file_descriptor.to_bytes(4, byteorder='big'))
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last_index += 1
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file_count = pack(">I", file_count)
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bout.extend(file_count)
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bout.extend(filebout)
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# On se place à la fin du header PZZ
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pzz_file.seek(CHUNK_SIZE)
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elif is_odd_number:
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file_count += 1
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for i, file in enumerate(files):
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count = int(0x40 << 24) + int(path.getsize(linkPath + "/" + file) / 0x800)
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# On écrit tous les fichiers à la suite du header
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for src_file_name in src_files :
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is_compressed = ( len(src_file_name.split("_compressed")) > 1 )
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if (i == 1):
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filebout.extend(b"\x00\x00\x00\x00")
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filebout.extend(pack(">I", count))
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else:
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filebout.extend(pack(">I", count))
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with (src_path / src_file_name).open("rb") as src_file :
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pzz_file.write( src_file.read() )
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file_count = pack(">I", file_count)
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bout.extend(file_count)
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bout.extend(filebout)
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success = False
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while not success:
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bout.extend(b"\x00\x00")
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address = len(bout)
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if hex(address).endswith("800"):
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break
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for file in files:
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filebout = open(linkPath + "/" + file, "rb")
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data = filebout.read()
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bout.extend(data)
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filename = "{}".format(str(src)[12:-19])
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p = (Path(dir_path) / filename).with_suffix(".pzz")
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p.write_bytes(bout)
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def pzz_test():
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print(pack(">I", int(0x40 << 24) + int(stat(linkPath + "/" + file).st_size) / 0x800))
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# Si le fichier n'est pas compressé, on ajoute le padding pour correspondre à un multiple de CHUNK_SIZE
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if not is_compressed and (src_file.tell() % CHUNK_SIZE) > 0:
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pzz_file.write( b"\x00" * (CHUNK_SIZE - (src_file.tell() % CHUNK_SIZE)) )
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def get_argparser():
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import argparse
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@ -271,17 +242,15 @@ def get_argparser():
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parser.add_argument('input_path', metavar='INPUT', help='only relative if -bu, -bc, -bd, p')
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parser.add_argument('output_path', metavar='OUTPUT', help='directory if -u, -bu, -bc, -bd')
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group = parser.add_mutually_exclusive_group(required=True)
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group.add_argument('-u', '--unpack', action='store_true', help='PZZ files from AFS')
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group.add_argument('-c', '--compress', action='store_true')
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group.add_argument('-u', '--unpack', action='store_true', help='-u source_pzz.pzz : Unpack the pzz in source_pzz folder')
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group.add_argument('-p', '--pack', action='store_true', help="-p source_folder : Pack source_folder in source_folder.pzz")
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group.add_argument('-c', '--compress', action='store_true', help='')
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group.add_argument('-d', '--decompress', action='store_true', help='Unpacked files from PZZ')
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group.add_argument('-bu', '--batch-unpack', action='store_true', help='INPUT relative pattern; e.g. AFS_DATA\\*.pzz')
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group.add_argument('-bc', '--batch-compress', action='store_true', help='INPUT relative pattern; e.g. AFS_DATA\\*.bin')
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group.add_argument('-bd', '--batch-decompress', action='store_true', help='INPUT relative pattern; e.g. AFS_DATA\\*_compressed.dat')
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group.add_argument('-p', '--pack', action='store_true')
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group.add_argument('-t', '--test', action='store_true')
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return parser
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if __name__ == '__main__':
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import sys
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parser = get_argparser()
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@ -318,14 +287,10 @@ if __name__ == '__main__':
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print("! Wrong PZZ file")
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elif args.pack:
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print("### Pack")
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p_output.mkdir(exist_ok=True)
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pzz_pack(p_input, p_output)
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elif args.test:
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pzz_test()
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pzz_pack(p_input)
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elif args.unpack:
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print("### Unpack")
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p_output.mkdir(exist_ok=True)
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pzz_unpack(p_input, p_output)
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pzz_unpack(p_input)
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#elif args.batch_pack:
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# pass
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elif args.batch_unpack:
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@ -336,5 +301,3 @@ if __name__ == '__main__':
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for filename in p.glob(args.input_path):
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print(filename)
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pzz_unpack(filename, p_output)
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