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Parasite_Eve_2_CDF_HED_Tool.py
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Parasite_Eve_2_CDF_HED_Tool.py
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# -*- coding: utf-8 -*-
'''
Copyright © 2021 Bartłomiej Duda
License: GPL-3.0 License
'''
# Program tested on Python 3.7.0
# It should be used with Parasite Eve 2 (PS1)
# Ver Date Author Comment
# v0.1 07.05.2021 Bartlomiej Duda -
# v0.2 08.05.2021 Bartlomiej Duda Export function for STAGE0 completed
# v0.3 13.05.2021 Bartlomiej Duda Added initial STAGE1-STAGE3 logic
import os
import sys
import struct
import datetime
def bd_logger(in_str):
'''
Function for logging debug messages
'''
now = datetime.datetime.now()
print(now.strftime("%d-%m-%Y %H:%M:%S") + " " + in_str)
def read_toc(in_file):
count = 0
r_offset_list = []
while 1:
count += 1
f_id = struct.unpack("<L", in_file.read(4))[0]
f_offset_or_size = struct.unpack("<L", in_file.read(4))[0]
f_real_offset_or_size = f_offset_or_size * 2048
if (f_id == 0 and count != 1) or f_id == 4294967295:
break
r_offset_list.append(f_real_offset_or_size)
#print(str(count) + ") " +
#"ID: " + str(f_id).ljust(10) + "\t" +
#" offset: " + str(f_offset_or_size).ljust(10) + "\t" +
#" real_offset: " + str(f_real_offset_or_size).ljust(10) + "\t"
#)
return r_offset_list
block_names_mapping = {
0: "Room package block",
1: "Image",
2: "CLUT",
4: "CAP2 Text",
5: "Room backgrounds",
6: "SPK/MPK music program",
7: "ASCII text",
#96: "Sounds",
}
file_ext_mapping = {
0: ".pe2pkg",
1: ".pe2img",
2: ".pe2clut",
4: ".pe2cap2",
5: ".bs",
6: ".spk",
7: ".txt",
#96: ".pe2snd"
}
def get_block_name(in_block_type):
return block_names_mapping.get(in_block_type, "Unknown_Block_Name")
def get_file_ext(in_block_type):
return file_ext_mapping.get(in_block_type, ".BIN")
def export_data(in_hed_file_path, in_cdf_file_path, out_folder_path):
'''
Function for exporting data from CDF files
'''
bd_logger("Starting export_data...")
if not os.path.exists(os.path.dirname(out_folder_path)):
os.makedirs(os.path.dirname(out_folder_path))
cdf_file = open(in_cdf_file_path, 'rb')
cdf_size = os.path.getsize(in_cdf_file_path)
hed_flag = 0
if in_hed_file_path != "" and in_hed_file_path is not None:
hed_file = open(in_hed_file_path, 'rb')
hed_file.read(120) # skip header
hed_global_toc = read_toc(hed_file) # read TOC from HED file
hed_flag = 1
# get data using TOC from HED file (STAGE0 logic)
if hed_flag == 1:
hed_global_toc.append(cdf_size)
f_size_list = []
for i in range(len(hed_global_toc) - 1):
f_size = hed_global_toc[i+1] - hed_global_toc[i]
f_size_list.append(f_size)
f_r_offset = hed_global_toc[i]
if f_size != 0:
#print("f_r_offset: " + str(f_r_offset).ljust(10) +
#" f_size: " + str(f_size).ljust(10)
#)
# check file type
f_ext = ""
back_offset = cdf_file.tell()
comp_flag = -1
try:
b_type = struct.unpack("<B", cdf_file.read(1))[0]
comp_flag = struct.unpack("<B", cdf_file.read(1))[0]
block_name = get_block_name(b_type)
f_ext = get_file_ext(b_type)
print(comp_flag)
except:
print("Couldn't read signature!")
finally:
cdf_file.seek(back_offset)
if "Unknown" in block_name:
try: # try to detect file type by signature
sign = cdf_file.read(4).decode("utf8")
if sign == "hMPK":
f_ext = ".hmpk"
except:
pass
finally:
cdf_file.seek(back_offset)
if f_ext == "":
f_ext = ".bin"
# read data
cdf_file.seek(f_r_offset)
cdf_file.read(16) # skip data block header
f_size -= 16
f_data = cdf_file.read(f_size)
f_name = "file" + str(i+1) + f_ext
f_path = out_folder_path + f_name
print(f_path)
out_file = open(f_path, "wb+")
out_file.write(f_data)
out_file.close()
# get data using TOC from CDF file (STAGE1-STAGE3 logic)
else:
global_toc = read_toc(cdf_file)
num_of_glob_toc_entries = len(global_toc)
glob_offset_list = []
glob_offset = 2048
cdf_file.seek(glob_offset) # go to first local TOC
glob_offset_list.append(glob_offset)
for glob_i in range(num_of_glob_toc_entries-1): # loop for calculating global offsets
glob_offset += global_toc[glob_i]
glob_offset_list.append(glob_offset)
for glob_j in range(num_of_glob_toc_entries): # FOLDER LOOP
fold_offset = glob_offset_list[glob_j]
fold_size = global_toc[glob_j]
fold_end_offset = fold_offset + fold_size
print("FOLDER " + str(glob_j+1) + ", off: " + str(fold_offset) + " size: " + str(fold_size) )
cdf_file.seek(fold_offset) # go to first local TOC in folder
local_toc = read_toc(cdf_file)
num_of_loc_toc_entries = len(local_toc)
loc_offset_list = []
for loc_i in range(num_of_loc_toc_entries): # loop for calculating local offsets
file_offset = fold_offset + local_toc[loc_i]
loc_offset_list.append(file_offset)
loc_offset_list.append(fold_end_offset)
loc_size_list =[]
for loc_j in range(num_of_loc_toc_entries): # loop for calculating local sizes
loc_size = loc_offset_list[loc_j+1] - loc_offset_list[loc_j]
loc_size_list.append(loc_size)
for loc_k in range(num_of_loc_toc_entries):
subfold_start = loc_offset_list[loc_k]
subfold_size = loc_size_list[loc_k]
subfold_end = subfold_start + subfold_size
print("\t SUB_FOLD " + str(loc_k+1) + ", off: " + str(subfold_start) + " size: " + str(subfold_size) )
cdf_file.seek(subfold_start) # go to first file in subfolder
f_count = 0
f_sum = 0
while 1:
f_count += 1
back_offset = cdf_file.tell()
file_type = struct.unpack("B", cdf_file.read(1))[0]
comp_flag = struct.unpack("B", cdf_file.read(1))[0]
cdf_file.read(2) # unknown
file_ext = get_file_ext(file_type)
file_desc = get_block_name(file_type)
file_name = "fold" + str(glob_j) + "_sub" + str(loc_k+1) + "_file" + str(f_count) + file_ext
file_path = out_folder_path + file_name
if file_type < 10:
file_size = struct.unpack("<L", cdf_file.read(4))[0] * 2048
else:
file_size = subfold_end - back_offset
print("\t\t FILE " + str(f_count) + ", f_type: " + str(file_type) + " f_size: " + str(file_size) + " f_name: " + str(file_name) )
#if file_type >= 10:
#print ("\t\t !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!")
f_sum += file_size
if file_type < 10:
cdf_file.seek(back_offset + 16)
file_data = cdf_file.read(file_size - 16)
else:
cdf_file.seek(back_offset)
file_data = cdf_file.read(file_size)
#print("\t\t" + file_path)
out_file = open(file_path, "wb+")
out_file.write(file_data)
out_file.close()
cdf_file.seek(back_offset + file_size) # go to the next file in subfolder
if cdf_file.tell() >= subfold_end:
break
#print("\t\ttotal_f_sizes_in_subfolder: " + str(f_sum))
if hed_flag == 1:
hed_file.close()
cdf_file.close()
bd_logger("Ending export_data...")
def main():
'''
Main function of this program. If you are planning to use it,
you should adjust paths first.
'''
main_switch = 1
# 1 - data export
if main_switch == 1:
#p_in_hed_file_path = "C:\\Users\\Arek\\Desktop\\Parasite Eve 2 [SLUS 010-42]\out\\STAGE0.HED"
#p_in_cdf_file_path = "C:\\Users\\Arek\\Desktop\\Parasite Eve 2 [SLUS 010-42]\out\\STAGE0.CDF"
#p_out_folder_path = "C:\\Users\\Arek\\Desktop\\Parasite Eve 2 [SLUS 010-42]\out\\STAGE0.CDF_OUT\\"
p_in_hed_file_path = ""
p_in_cdf_file_path = "C:\\Users\\Arek\\Desktop\\Parasite Eve 2 [SLUS 010-42]\out\\STAGE2.CDF"
p_out_folder_path = "C:\\Users\\Arek\\Desktop\\Parasite Eve 2 [SLUS 010-42]\out\\STAGE2.CDF_OUT\\"
export_data(p_in_hed_file_path, p_in_cdf_file_path, p_out_folder_path)
else:
bd_logger("Wrong option selected!")
bd_logger("End of main...")
main()