Try different algorythms for 1 file (like upx brute/ultra-brute options)

juninho12 / freearc

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Try different algorythms for 1 file (like upx brute/ultra-brute options) #286

Open GoogleCodeExporter opened 9 years ago

GoogleCodeExporter commented 9 years ago

What should be implemented?
An option in CUI/GUI or batch script that will try different algorythms on 1 
file and choose best.

Why it will be useful?
It might be useful when ratio is more important than compression time.

Original issue reported on code.google.com by alk...@gmail.com on 17 Jan 2012 at 5:29

GoogleCodeExporter commented 9 years ago

how it should work with solid compression?

Original comment by bulat.zi...@gmail.com on 17 Jan 2012 at 10:21

GoogleCodeExporter commented 9 years ago

FreeArc creates blocks as usual and for each block tries different algorythms. 
And chooses best.

Original comment by alk...@gmail.com on 17 Jan 2012 at 12:50

GoogleCodeExporter commented 9 years ago

well, and which compression algos to test? those that are targeted to other 
datatypes probably will not help here - even if one file or two are 
misrecognized as texts instead of binaries, other files in the solid block will 
overweight them

Original comment by bulat.zi...@gmail.com on 17 Jan 2012 at 1:55

GoogleCodeExporter commented 9 years ago

There are algorythms that aren't targeted to one datatype (like ppm or lzma). 
Test them. Test different combinations of preprocessors in different orders.

Original comment by alk...@gmail.com on 17 Jan 2012 at 2:17

GoogleCodeExporter commented 9 years ago

Also you can test it once an generate big arc.ini with best methods.

Original comment by alk...@gmail.com on 17 Jan 2012 at 2:17