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myp extraction

Old   #1
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myp extraction

Why hello there.

For all those here who thought about digging through the data stored in the myp files but couldn't be bothered to find out how to do it i have a short summary about that.

0) The file format

These files are basically a huge array of compressed or not so much zlib compressed (i.e. videos) files. Each entry is described with some basic info like file hash, compressed size, compression and uncompressed size to name a few. Apart from that the file has of course a header of its own and every 1000 records you have a fileindex entry.
If you want to know more about it than the stuff from my memory you can check this or logfiles and sourcecode of the two tools i want to tell you about.

1) UnMYP

Not so much a usefull tool as a proof of concept you will reach it's limitations quickly, as it only recognizes 3 different filetypes and no filenames. An interesting project which doesn't seem to have that much attention lately.

2) EasyMyp

More UI, more features, more bugs.
Today i found this interesting project on google code, written in c#, completely with sourcecode and the capability to retrieve filenames from hashes. It states to be able to add, remove and replace files in myp archives which i haven't tried so far, but since it is quite bug-ridden i would recommend anyone to make backups before trying. This pretty young program has it's own forums with no posts so far, yet i hope it's development will continue as it seems to be the most promising out of the two i found.

easymyp - Google Code

With possibilities like this emerging we will hopefully soon witness the birth of an active model editing scene and nude patches of course.

mr.rattlz is offline  
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Old 12/12/2008, 16:20   #2
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Also interesting is this, looks like someone is doing a modelviewer thingy.
Please ignore the first posts, interesting are the last ones and page 2.

Maybe someone could put everything together and do something with it.

darkrib is offline  
Old 01/09/2009, 16:42   #3
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Mr Rattlz, your pretty hard on me regarding EasyMyp.
I thought I took out like most of the bugs.
I ll gladly look into any bugs you can inform me about though.

Chryso is offline  

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