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May 18, 2018 19:44
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Python script to extract FWAVs from BARS files in Nintendo Switch & Wii U games
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| import sys | |
| import os | |
| def main(argv): | |
| files = argv[1:] | |
| if len(files) == 0: | |
| return 1 | |
| for file in files: | |
| try: | |
| file_o = open(file, "rb") | |
| except: | |
| continue | |
| print(os.path.basename(file)) | |
| pathout = ( | |
| os.path.dirname(file) + "/" + | |
| os.path.splitext(os.path.basename(file))[0] | |
| ) | |
| file_o.seek(0x0, os.SEEK_SET) | |
| if file_o.read(0x4) != b"BARS": | |
| continue | |
| names = [] | |
| file_o.seek(0x0, os.SEEK_SET) | |
| while True: | |
| tmp = file_o.read(0x4) | |
| if tmp == b"": | |
| break | |
| if tmp == b"STRG": | |
| name = b"" | |
| file_o.seek(0x4, os.SEEK_CUR) | |
| while True: | |
| tmp = file_o.read(0x1) | |
| if tmp == b"": break | |
| if tmp == b"\x00": break | |
| name += tmp | |
| continue | |
| if name != b"": | |
| names.append( | |
| name.decode("utf8")) | |
| file_o.seek( | |
| -(file_o.tell() % 0x4), | |
| os.SEEK_CUR | |
| ) | |
| continue | |
| file_o.seek(0x0, os.SEEK_SET) | |
| while True: | |
| tmp = file_o.read(0x20) | |
| if tmp == b"": | |
| break | |
| if tmp[0:0x4] == b"FWAV": | |
| try: | |
| endian = None | |
| if tmp[0x4:0x6] == b"\xFF\xFE": endian = "little" | |
| if tmp[0x4:0x6] == b"\xFE\xFF": endian = "big" | |
| if endian == None: | |
| raise Exception() | |
| size = int.from_bytes( | |
| bytes = tmp[0xC:0x10], | |
| byteorder = endian, | |
| signed = False | |
| ) | |
| if size <= 0: | |
| raise Exception() | |
| if size > (1024*1024*100): | |
| raise Exception() | |
| file_o.seek(-0x20, os.SEEK_CUR) | |
| name = (names.pop(0) + ".bfwav") | |
| print(" " + name) | |
| os.makedirs(name=pathout, exist_ok=True) | |
| file_out_p = os.path.join(pathout, name) | |
| file_out_o = open(file_out_p, "wb") | |
| size_d = 0 | |
| size_c = 0 | |
| while size_d < size: | |
| size_c = \ | |
| min((size - size_d), (1024*128)) | |
| file_out_o.write( | |
| file_o.read(size_c)) | |
| size_d += size_c | |
| file_out_o.close() | |
| except: | |
| pass | |
| file_o.seek( | |
| -(file_o.tell() % 0x20), | |
| os.SEEK_CUR | |
| ) | |
| continue | |
| file_o.close() | |
| continue | |
| return 0 | |
| if __name__ == "__main__": | |
| sys.exit(main(sys.argv)) |
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