AdvanceCOMP with new 7-zip

[roytam1]

I tried to update the 7-zip library to 9.20 in AdvanceCOMP-1.15.
but the advdef result goes worse when comparing with old 7-zip library.

I wonder if I made wrong changes?

Sources and compiled binary attached.

EDIT: Changing compress_rfc1950_7z to use NCompress::NZlib::CEncoder directly solves the issue!
but I have a few samples that old advdef compresses better than advdef-7z920 (though others are better with advdef-7z920)

[Bulat Ziganshin]

what is the "old"? how much is difference?

[roytam1]

what is the "old"? how much is difference?

the old one should be forked from 7-zip < 3.13 as 7-zip 3.13 has NCompress namespace, which advanceCOMP 7-zip library doesn't have.

I have some PNG sample that compress worse.

[nikkho]

the old one should be forked from 7-zip < 3.13 as 7-zip 3.13 has NCompress namespace, which advanceCOMP 7-zip library doesn't have.

I have some PNG sample that compress worse.

Version 1.16 was released recently, it is available at http://advancemame.sourceforge.net/comp-download.html
By the way, would be possible to use Zopfli, instead of 7-Zip ZIP implementation? It should gather better results...

[roytam1]

Changing compress_rfc1950_7z to use NCompress::NZlib::CEncoder directly solves the issue!
but I have a few samples that old advdef compresses better than advdef-7z920 (though others are better with advdef-7z920)

Version 1.16 was released recently, it is available at http://advancemame.sourceforge.net/comp-download.html
By the way, would be possible to use Zopfli, instead of 7-Zip ZIP implementation? It should gather better results...

1.16 violates my work flow while it doesn't improve compression ratio (I'd like to have .tmp which has same basename as original file like 1.15)

It seems no that hard plugging Zopfli to advcomp.
EDIT: I filed a bug in zopfli that zopfli is unfriendly with pre-allocated memory: http://code.google.com/p/zopfli/issues/detail?id=13

EDIT 2: workaround by memcpy() it. src/bin attached.

[roytam1]

BTW another person did same with advcomp
https://github.com/dajhorn/advancecomp

(I'll still keep my own fork here )

[lorents17]

del

[zyzzle]

I cannot execute the included GCC-compiled binaries and keep getting a "Can't find libgcc_s_dw2-1.dll" error, even though I've found this file and included it in the same directory as advzip.exe

It seems roytam's version of AdvanceCOMP was compiled with GCC 4.8.0. Anyone have a version of that dll or can recompile with it statically-linked or included within the archive?

[roytam1]

I cannot execute the included GCC-compiled binaries and keep getting a "Can't find libgcc_s_dw2-1.dll" error, even though I've found this file and included it in the same directory as advzip.exe

It seems roytam's version of AdvanceCOMP was compiled with GCC 4.8.0. Anyone have a version of that dll or can recompile with it statically-linked or included within the archive?

This one will not require libgcc.

[roytam1]

updated for -i N, --iterations N switch.

zopfli will enable in -2(== -i 5), -3(== -i 15), -4(== -i 50), -i mode.

[zyzzle]

Thanks, the latest version with -i works well in my Windows XP...

Is there a chance that you can compile a DJGPP MS-DOS binary of 1.15 with Zopfli option included? Really would be neat.

[roytam1]

Thanks, the latest version with -i works well in my Windows XP...

Is there a chance that you can compile a DJGPP MS-DOS binary of 1.15 with Zopfli option included? Really would be neat.

Sure. djgpp 2.03p2 gcc 4.7.2 + g++ 4.7.2 + binutils 2.23.1 compiled stripped binary(only) attached.

A tiny patch for lib_zopfli.cc is needed.

--- lib_zopfli.cc	2013-03-20 11:40:28 +0800
+++ lib_zopfli.djgpp.cc	2013-03-20 14:28:07 +0800
@@ -24,11 +24,11 @@
 
 bool compress_zopfli(ZopfliFormat output_type, const unsigned char* in_data, unsigned in_size, unsigned char* out_data, unsigned& out_size, unsigned num_passes) throw ()
 {
     ZopfliOptions  options;
     unsigned char* zopfli_data = 0;
-    unsigned zopfli_size = 0;
+    size_t zopfli_size = 0;
 
     options.verbose = 0;
     options.verbose_more = 0;
     options.numiterations = (int)num_passes;
     options.blocksplitting = 1;

[zyzzle]

That's fabulous! Thank you very much for the DOS compile.

[nikkho]

Any chances of 1.16 plus zopfli?

[nikkho]

Any chances of 1.16 plus zopfli?

Sorry, just noticed the original author already did that as 1.17 (http://sourceforge.net/projects/adva...ancecomp/1.17/)

[roytam1]

ADVANCECOMP VERSION 1.17 2013/03
================================

* Changed to GPL3.
* Added zopfli support. It's enabled using -4, --shrink-insane.
You can control the number of iterations with the
new -i, --iter option.
Thanks to Darik Horn for the patches.

[nikkho]

1.23 is out: http://www.advancemame.it/download

ADVANCECOMP VERSION 1.23 2016/11================================


* Fixed build issue from source code due missing libdeflate header.




ADVANCECOMP VERSION 1.22 2016/11
================================


* Enabled again the command line wildcard expansion in the Windows
  builds. The new MingW compiler was disabling it by default.




ADVANCECOMP VERSION 1.21 2016/11
================================


* Added libdeflate support. It's the new default because it provides
  better performance and compression than 7z.
  From https://github.com/ebiggers/libdeflate
  at commit 28cc14994b8b57f590d31a7340c8fffc5cc37d88
* Update to te latest zopfli library.
  From https://github.com/google/zopfli
  at commit 6818a0859063b946094fb6f94732836404a0d89a.
* Windows binaries built with MingW 4.9.3 using the MXE cross compiler at
  commit 62bcdbee56e87c81f1faa105b8777a5879d4e2e with targets
  i686-w64-mingw32 and x86_64-w64-mingw32.
* DOS binaries built with DJGPP 4.8.5 from
  https://github.com/andrewwutw/build-djgpp




ADVANCECOMP VERSION 1.20 2015/08
================================


* Fixed .gz recompression of data bigger than 400 MB.
* Fixed .gz recompression with -0 and -1 options.
* Updated to the latest zopfli [Aaron Kaluszka].
* Preserve the EFS flag in .zip files [Jason Penney].




ADVANCECOMP VERSION 1.19 2014/03
================================


* Limited the iterations number to 255 with the -3 option.
* Added a new -k, --keep-file-time option to advzip [Marco Banfi].
* Made the Windows binary again compatible with old 686 processors.




ADVANCECOMP VERSION 1.18 2013/11
================================


* Added build support for new powerpc architectures.
* Fixed build with BZIP.