python-zstandard
7-Zip-zstd
python-zstandard | 7-Zip-zstd | |
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1 | 40 | |
464 | 4,705 | |
- | - | |
7.3 | 5.0 | |
28 days ago | 7 days ago | |
C | C | |
BSD 3-clause "New" or "Revised" License | GNU General Public License v3.0 or later |
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python-zstandard
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I'm trying to compress data with Python and Zstd library but can't figure out what I'm doing wrong. Any Help?
I'm working on file formats called tif file which are on average a gigabyte of size. A middle step is to compress those files and I looked it up and found this and tried to use it. But unfortunately, the size of the compressed file is barely 100MB less than the original one and it takes like 1.5 minutes to compress it. I'm reading the entire file in memory instead of streaming it but I don't really think that could result in compression size. I'm also using high enough level of compression(20 level) but it still won't give me good results.
7-Zip-zstd
- WinRAR musste shady werden.
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Zip: How not to design a file format
Do you consider rar a standard? It's a pretty good format, even though there aren't any good open-source implementations. But if you're willing to pay for your software, WinRAR command line versions are available for most platforms.
7zip is the most obvious free alternative. There is also a 7zip fork that offers zstd [1]. The command line experience for 7zip isn't very good however.
1: https://github.com/mcmilk/7-Zip-zstd
- my rarbg magnet backup (268k)
- How can I fix this
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28 years later, Windows finally supports RAR files
Check out https://github.com/mcmilk/7-Zip-zstd
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Zip/7Zip-archives instead of Cryptomator and what Apps
There's also this fork which supports additional compressions: https://github.com/mcmilk/7-Zip-zstd
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Best way to compress Data
7-zip is actually not a bad option, but I'd strongly advise using the fast-lzma2 codec, because, well, it is waay faster, and might even give you better ratios, depending on how you use it. You can find an implementation here, and it is compatible with traditional 7-zip (you can decompress it on any computer with any newish version of 7z)
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Recommendation of Windows software [A long read]
Hi, PeaZip can use McMilk's additional compression codecs for 7z format (Zstandard, Brotli, Lizard, etc), https://github.com/mcmilk/7-Zip-zstd
- Tried using forked 7-zip sfx
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Separate dump files for the top 20k subreddits
You can extract the files yourself with 7Zip. You can install 7Zip from here and then install this plugin to extract ZStandard files, or you can directly install the modified 7Zip with the plugin already from that plugin page. Then simply open the zst file you downloaded with 7Zip and extract it.
What are some alternatives?
lizard - Lizard (formerly LZ5) is an efficient compressor with very fast decompression. It achieves compression ratio that is comparable to zip/zlib and zstd/brotli (at low and medium compression levels) at decompression speed of 1000 MB/s and faster.
zstd - Zstandard - Fast real-time compression algorithm
p7zip - A new p7zip fork with additional codecs and improvements (forked from https://sourceforge.net/projects/sevenzip/ AND https://sourceforge.net/projects/p7zip/).
7z - Because 7-zip source code was in a 7z archive [mirror]
LZ4 - Extremely Fast Compression algorithm
squashfs-tools-ng - A new set of tools and libraries for working with SquashFS images
zfs - OpenZFS on Linux and FreeBSD
py7zr - 7zip in python3 with ZStandard, PPMd, LZMA2, LZMA1, Delta, BCJ, BZip2, and Deflate compressions, and AES encryption.
lxqt-archiver - A simple & lightweight desktop-agnostic Qt file archiver
lzbench - lzbench is an in-memory benchmark of open-source LZ77/LZSS/LZMA compressors
RocksDB - A library that provides an embeddable, persistent key-value store for fast storage.
NanaZip - The 7-Zip derivative intended for the modern Windows experience