Deciphering!?
 

Trying to interpret what (pre)compressors were used and their corresponding options for some game compressions.

Here is a random sample -

The srep part is srep a pre-processor with the option -m3f used. Right?

The lzma part however is not clear as to what actual compressor program was used. Some of the options (after the lzma part) do not seem to correspond to known options for some compressors.

Some of the options suggest the compressor program used was lolz, but remaining options do not appear to be available in lolz. Other options suggest the compressor program used was dlz, but again the remaining options do not seem to be available on dlz.

So can someone please confirm what compressor program(s) were used for the "lzma" part!?

lzma:a1:mfbt4:d256m:fb273:mc1000000000:lc8

Here a1:mfbt4:d256m:fb273:mc1000000000:lc8 are options for lzma. LZMA is the compressor here.

Thanks.

But I didn't make myself clear.

lzma a compression algorithm called on by some program

As far as I'm aware there is no "program" named LZMA.

So which program(s) were used for this lzma compression algorithm example?

FreeArc has this algorithm included by default. It doesn't need external program.

Thanks.

But on checking FreeArc commands, there don't appear to be options -a1, -mfbt4, -d????, -fb???, and -mc* available. Therefore this suggests that FreeArc wasn't used in the example in my first post.

Also quickly checked 7-zip commands, and it appears this doesn't have many of the lzma options either! So presumably 7-zip was not used in the example above(?)

So, any other ideas which program was used that used ALL of the example options?

These options are available in freearc. It doesn't need anything external. -a1 -mfbt4 and those all can be used with freearc without any external executables or dlls. So basically, freearc's internal lzma was used here, nothing else.

And even 7zip includes these options. You just haven't checked the help files of 7zip, nor freearc.

Thanks again!

I just typed in the respective programs in a command window to bring up command syntax and options.

So it appears not all commands/options are shown in the syntax display. The syntax/option displays were what I based my comments on.

Yep, they don't show in command window but they work. There are numerous options in these programs, they don't write everything in command window.