Compression signature

Read or post about compression. And decompression. Or ask questions how to decompress your files.
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tuanbusku
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Compression signature

Post by tuanbusku » Thu Sep 06, 2018 4:10 pm

Hi, ive started looking at ground control 2's .sdf-files. This is how far ive gotten:

DWORD ident
DWORD directory_offset

<lots of data>

at directory_offset:
DWORD uncompr_size
UINT24 compr_size
BYTE flags
<BYTE[compr_size]>
:EOF

i havent identified the compression scheme used, it starts like this:
5D 00 00 80 00
do you recognize this signature?

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ikskoks
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Re: Compression signature

Post by ikskoks » Thu Sep 06, 2018 5:36 pm

5D 00 00 80 00
do you recognize this signature?
It looks like lzma.

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