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juninho12 / freearc

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Smart Recompression #247

Open GoogleCodeExporter opened 9 years ago

GoogleCodeExporter commented 9 years ago 
What should be implemented?

Example: 
"precomp:slow+mm+grzip" is my compression method for archive "01.arc" and I 
want to recompress my archive "01.arc" using
"precomp:slow+rep:256mb+delta+lzma:ultra" compression method.

For recompression: 
1. FreeArc extract recompressed PCF datafile with "mm+grzip"
2. FreeArc extract all data from PCF with "precomp:slow"
3. Freearc recompress all data with "precomp:slow"
4. Freearc add recompressed PCF datafile with "rep:256mb+delta+lzma:ultra"

Recompression data with "precomp:slow" doesn't change compression size.
I would like that recompression steps:
1. FreeArc extract recompressed PCF datafile with "mm+grzip"
2. 3. Skip, because "precomp:slow+..." did not change.
4. Freearc add extracted recompressed PCF datafile in step 1 with
   "rep:256mb+delta+lzma:ultra" 

Why it will be useful?
It will make recompression process faster.

Thanks

Original issue reported on code.google.com by bye...@meta.ua on 23 Oct 2010 at 8:04

GoogleCodeExporter commented 9 years ago

Original comment by bulat.zi...@gmail.com on 5 Nov 2011 at 2:46