7ZIP FORMAT.... (possible implementation in TC??)

[stifani]

Hi.. I'm new in this forum...

I would like to do my compliments to Christian Ghisler... U are so COOOL

Anyway... there is a new format .7z (7zip) that make an impressionant COMPRESSION....

A file .exe of 32 Mb can be compressed with NORMAL COMPRESSION at 4Mb vs 10 Mb of .rar and 11 of .zip (Tested by me)...

Is it a possible implementation in TC ??

If u are ok.. I try to start a poll...


Thanks ...

[Clo]

2stifani
 Hello !
• Welcome on board!

* Typing only "7ZIP" in the Search-engine (right side of the page-head), you'ld get a lot of topics about that wonderful packer…
* Please, consult them before to launch a poll.
  Kind regards,

Claude
Clo

[ghisler(Author)]

To those who have followed the development of 7zip a bit: Is the format still constantly changing, or is it now sufficiently stable so I could make a plugin from its source code? As long as the format changes, it's really better to call the original via multiarc...

[Hacker]

Well, 7-Zip is not beta anymore, but there's a roadmap mentioned at the main page at http://www.7-zip.org :

Code: Select all

Roadmap

7-Zip 4.00 (2004 May):

   1. Multivolume
   2. Absolute pathnames in command line
   3. Multiple archives handling in one command
   4. Compressing/decompressing from/to stdin/stdout in command line 

7-Zip 4.*:

   1. New compression methods for multimedia data
   2. Recovery 

7-Zip *:

   1. Ports to other platforms

Maybe you should just write to support@7-zip.org concerning how to best implement support?

HTH
Roman

[norfie]

[oblomov]

There is an "LZMA SDK" available from the 7-zip website which should help integration of support for LZMA and the 7-ZIP format into any program. So I guess it can be considered stable enough?

[Hacker]

norfie,

and don't invent the bicycle new

I wonder how many people get this (German) joke.

Roman

[Sheepdog]

norfie,

and don't invent the bicycle new

I wonder how many people get this (German) joke.

Roman

Especially while not the bicycle is meant but the wheel which is both in german 'Rad'.

sheepdog

[Black Dog]

[face=courier]On 17-05-2004 12:04:32 +0000 Hacker wrote:

H> I wonder how many people get this (German) joke.

Well Jedi, if you want to talk about that it can be Russian as well %).[/face]

[Sheepdog]

[face=courier]On 17-05-2004 12:04:32 +0000 Hacker wrote:

H> I wonder how many people get this (German) joke.

Well Jedi, if you want to talk about that it can be Russian as well %).[/face]

I never heard about the wheel was invented in Russia, as far as I know it must be a german invention (How else would the german proverb make sense?)

sheepdog

[pdavit]

I never heard about the wheel was invented in Russia, as far as I know it must be a german invention (How else would the german proverb make sense?)

Who invented the wheel?

When most people think of the invention of the wheel, the image that comes to mind is a caveman chipping away on a flat block of stone. Actually the earliest evidence comes from Sumeria in Mesopotamia around 3500 B.C., where a potter's wheel is depicted on a clay tablet. About 300 years later a wheeled cart is depicted. The Egyptians of the Pyramid Age (2700-2200 B.C.) didn't have the wheel. They used sledges (platforms on runners) to drag the great stones over the sand.

Source: David J.Ladouceur, associate professor, The Classics

[norfie]

[Randy]

Not to get this too far off-topic but why is there such a huge concern over 7-Zip in this forum? I've messed around with it and although it does squeeze out more megabytes than the other popular compilers, it does so by using a ton of memory, CPU cycles, and time. It makes me wonder if the trade-off is really worth it.

Opinions?

[Clo]

2Randy
 Hello !
• Though I'm not especially a "hot" supporter of 7-ZIP, I guess that it could be added to the actual packers. We have still UC2 - which the development is no longer continued - as an external packer. How many users do use it still ?
* Whether Ch. Ghisler could get a reliable 7-ZIP component, why not ? In anyway, you'ld not be bound to use it.

…it does so by using a ton of memory, CPU cycles, and time…

• True if you are using still a 486 or so... The most actual PCs (and even those a bit older…) can support such a packer. I don't think that many PCs run currently with only 32 or 64 MB of RAM !

Opinions?

 Above is my (modest) one.

  K R
Claude
Clo

[Randy]

Thank you, Clo.

First, maybe it was how Black Dog had his configuration to Multiarc set up, but, on my laptop, which is a 1.4ghz machine with 256m of RAM, 7-Zip quickly climbed to using around 300 megs of RAM and nearly every CPU cycle. I haven't tried it on my workstation (3ghz, 1 gig RAM) but it seemed excessive.

I remember UC2 and, back in the old days, it used to be my primary compression program. I am sad that development has stopped because it was quite good, reliable, and had features then that other compressors didn't have (but do now).

P.S. France rules!