mirror of
https://github.com/Xevion/easy7zip.git
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180 lines
6.0 KiB
Markdown
180 lines
6.0 KiB
Markdown
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# README
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This is the Github Page of 7-Zip with support for **zstd**, short for
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Zstandard, which is a fast lossless compression algorithm, targeting
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real-time compression scenarios at zlib-level compression ratio.
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LZ4 and LZ5 compression is also on the way, you can see some first
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coding for it here: [Multithreading Library](https://github.com/mcmilk/zstdmt)
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You can install it in two ways:
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1. full setup with ZStandard additions within the GUI and an modified
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Explorer context menu
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2. just the codec plugin, which goes to your existing 7-Zip installation
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## 7-Zip ZStandard Edition (full setup, with GUI and Explorer integration)
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### Installation (via setup)
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1. download the setup from here [7-Zip ZS Releases](https://github.com/mcmilk/7-Zip-zstd/releases)
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2. install it, like the default 7-Zip
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3. use it ;)
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4. you may check, if the 7-Zip can deal with ZStandard via this command: `7z.exe i`
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The output should look like this:
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```
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7-Zip [64] 16.04 : Copyright (c) 1999-2016 Igor Pavlov : 2016-06-26
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Libs:
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0 c:\Program Files\7-Zip-ZStandard\7z.dll
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Formats:
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...
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0 CK xz xz txz (.tar) FD 7 z X Z 00
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0 Z z taz (.tar) 1F 9D
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0 CK zstd zst tzstd (.tar) 0 x F D 2 F B 5 2 5 . . 0 x F D 2 F B 5 2 8 00
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0 C F 7z 7z 7 z BC AF ' 1C
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0 F Cab cab M S C F 00 00 00 00
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...
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Codecs:
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0 4ED 303011B BCJ2
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0 ED 3030103 BCJ
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0 ED 3030205 PPC
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0 ED 3030401 IA64
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0 ED 3030501 ARM
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0 ED 3030701 ARMT
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0 ED 3030805 SPARC
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0 ED 20302 Swap2
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0 ED 20304 Swap4
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0 ED 40202 BZip2
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0 ED 0 Copy
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0 ED 40109 Deflate64
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0 ED 40108 Deflate
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0 ED 3 Delta
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0 ED 21 LZMA2
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0 ED 30101 LZMA
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0 ED 30401 PPMD
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0 D 40301 Rar1
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0 D 40302 Rar2
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0 D 40303 Rar3
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0 D 40305 Rar5
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0 ED 4F71104 LZ4 <-- NEW
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0 ED 4F71105 LZ5 <-- NEW
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0 ED 4F71101 ZSTD <-- NEW
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0 ED 6F10701 7zAES
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0 ED 6F00181 AES256CBC
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```
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### Usage and features of the full installation
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```
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7z a archiv.7z -m0=zstd -mx0 Zstandard Fastest Mode, without BCJ preprocessor (only full installation)
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7z a archiv.7z -m0=zstd -mx1 Zstandard Fast mode, with BCJ preprocessor on executables
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7z a archiv.7z -m0=zstd -mx.. ...
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7z a archiv.7z -m0=zstd -mx21 Zstandard 2nd Slowest Mode, with BCJ preprocessor on executables
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7z a archiv.7z -m0=zstd -mx22 Zstandard Ultra Mode, with BCJ preprocessor on executables
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7z a archiv.7z -m0=lz4 -mx1 LZ4 Fast mode, with BCJ preprocessor on executables
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7z a archiv.7z -m0=lz4 -mx.. ...
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7z a archiv.7z -m0=lz4 -mx16 LZ4 Ultra Mode, with BCJ preprocessor on executables
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7z a archiv.7z -m0=lz5 -mx1 LZ5 Fast mode, with BCJ preprocessor on executables
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7z a archiv.7z -m0=lz5 -mx.. ...
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7z a archiv.7z -m0=lz5 -mx16 LZ5 Ultra Mode, with BCJ preprocessor on executables
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rem show contents of test.tar.zst:
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7z x -so test.tar.zst | 7z l -si -ttar
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```
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- included lzip decompression support (patch from http://download.savannah.gnu.org/releases/lzip/7zip/)
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- included compression / decompression for lz4 version 1.5.4.2, lz5 1.5.0 and zstd 1.1.2
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## ZStandard codec Plugin for 7-Zip
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### Installation (via plugin)
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1. download the codec archiv from here [7-Zip ZS Releases](https://github.com/mcmilk/7-Zip-zstd/releases)
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2. create a new directory named "Codecs"
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3. put in there the zstd-x32.dll or the zstd-x64.dll, depending on your 7-Zip installation
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- normally, the x32 should go to: "C:\Program Files (x86)\7-Zip\Codecs"
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- the x64 version should go in here: "C:\Program Files\7-Zip\Codecs"
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4. After this, you may check if the dll is correctly installed via this command: `7z.exe i`
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The output should look like this:
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```
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7-Zip [64] 16.04 : Copyright (c) 1999-2016 Igor Pavlov : 2016-10-04
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Libs:
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0 C:\Program Files\7-Zip\7z.dll
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1 C:\Program Files\7-Zip\Codecs\lz4-x64.dll
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2 C:\Program Files\7-Zip\Codecs\lz5-x64.dll
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3 C:\Program Files\7-Zip\Codecs\zstd-x64.dll
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...
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Codecs:
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0 4ED 303011B BCJ2
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0 ED 3030103 BCJ
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0 ED 3030205 PPC
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0 ED 3030401 IA64
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0 ED 3030501 ARM
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0 ED 3030701 ARMT
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0 ED 3030805 SPARC
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0 ED 20302 Swap2
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0 ED 20304 Swap4
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0 ED 40202 BZip2
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0 ED 0 Copy
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0 ED 40109 Deflate64
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0 ED 40108 Deflate
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0 ED 3 Delta
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0 ED 21 LZMA2
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0 ED 30101 LZMA
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0 ED 30401 PPMD
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0 D 40301 Rar1
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0 D 40302 Rar2
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0 D 40303 Rar3
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0 D 40305 Rar5
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0 ED 6F10701 7zAES
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0 ED 6F00181 AES256CBC
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1 ED 4F71104 LZ4 -> NEW
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2 ED 4F71105 LZ5 -> NEW
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3 ED 4F71101 ZSTD -> NEW
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```
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### Usage (codec plugin)
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- when compressing binaries (*.exe, *.dll), you have to explicitly disable
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the bcj2 filter via `-m0=bcj`, when using only the plugin dll's
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- so the usage should look like this:
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```
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7z a archiv.7z -m0=bcj -m1=zstd -mx1 Fast mode, with BCJ preprocessor on executables
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7z a archiv.7z -m0=bcj -m1=zstd -mx.. ...
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7z a archiv.7z -m0=bcj -m1=zstd -mx21 2nd Slowest Mode, with BCJ preprocessor on executables
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7z a archiv.7z -m0=bcj -m1=zstd -mx22 Ultra Mode, with BCJ preprocessor on executables
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```
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- you can only create .7z files with zstd compression, but you can not create .zst files :/
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## Links
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- [ZStandard Homepage](https://github.com/Cyan4973/zstd)
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- [7-Zip ZStandard Homepage](https://mcmilk.de/projects/7-Zip-zstd/)
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- Request for inclusion into the mainline 7-Zip: https://sourceforge.net/p/sevenzip/discussion/45797/thread/a7e4f3f3/
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- result, will not be included :(
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- [Support me](https://www.paypal.me/TinoReichardt) - when you want
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## Benchmarks with i7-3632QM
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## License and redistribution
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- the same as the original 7-Zip, which means GNU GPL
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/TR 2016-12-26 (ZStandard Version 1.1.2, 7-Zip Version 16.04)
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