7zip (LZMA) compression

[FabDev 8]

Hello,

 

At this time does somebody know a library to handle 7zip compression (LZMA) without DLL ?

I have tried it :

https://github.com/ccy/delphi-zip

But file LzmaDec.pas et LzmaEnc.pas are missing. 

 

LZMA is in the list :

https://docwiki.embarcadero.com/Libraries/Sydney/en/System.Zip.TZipCompression

But it's not seems to be handled.

 

Better a cross-plateform  library.

[Fr0sT.Brutal 900]

42 minutes ago, FabDev said:

But file LzmaDec.pas et LzmaEnc.pas are missing.  

https://github.com/ccy/lzmasdk/tree/57cdd679924d4dc2747a1cdbbe1134e277a9d28a/Delphi

[FabDev 8]

Thank you it's work, but after some fails : I understand that it's work for zip with LZMA compression but not for 7z with LZMA compression.

 

Someone know a native Delphi library for 7z ? Because it's really better compression than zip !

 

 

[aehimself 396]

ccy's version works properly on ZIP archives with LZMA compression. 7-zip is using LZMA2 by default, for which I did not see a pure pascal implementation yet.

[Fr0sT.Brutal 900]

Even that LZMA is not pure, it uses C obj files. Probably you could build LZMA2 objs as well and link them to Delphi app.

[Tommi Prami 130]

Innosetup has LZMA and LZMA2 code, might be that it is using it "in own way", did not check that closely. But there are .obj files for 32 & 64bit build and so on. Don't know is the headers translated fully.

 

Ah did not see that this was Cross platform, and those might not be portable, but anyhow, maybe someone else can use the info,..,.

 

-Tee-

Edited December 2, 2022 by Tommi Prami