precomp-cpp
XADMaster
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precomp-cpp | XADMaster | |
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14 | 2 | |
387 | 98 | |
- | - | |
0.0 | 5.3 | |
about 2 months ago | 19 days ago | |
C | C | |
Apache License 2.0 | GNU Lesser General Public License v3.0 only |
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precomp-cpp
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Does epub compress well?
You should look at Precomp - an apparently abandoned, but awesomely working arhiver that is dedicated to compressing those ZIP-based formats, and compresses them twice-thrice as small as LZMA2 can.
- Any suggestion for compressing a large batch of photos and videos into a single zip?
- Compression for Documents
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Putting 5,998,794 books on IPFS
You can also have a look at this packer. It compresses PDF and EPUB 2-3 times smaller than 7z at maximum settings, at half the speed. I keep all my books in it and never had a problem.
- .bin compression
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libgen currently adds around 1,300 books a day
There is an opensource archiver called precomp that is designed specifically for e-documents and compresses them 2-3 times smaller than 7z in ultra mode. It works, and I keep my e-books in it. However, it seems nobody else does, and development has stopped due to lack of interest.
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AWS switch from gzip to zstd – about 30% reduction in compressed S3 storage
There are tools like preflate [1] or precomp [2] that guarantees a bitwise identical reconstruction, of course modulo bugs.
[1] https://github.com/deus-libri/preflate
[2] https://github.com/schnaader/precomp-cpp/ (which internally makes use of preflate)
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Which compression method for archiving OS ISOs?
You may use "precomp" in order to seek and uncompress those parts. Then you can use a better compression algorithm : http://schnaader.info/precomp.php
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Is there any research as to what's the best way to compress each file type?
Precomp http://schnaader.info/precomp.php is a program which will seek compressed parts and decompress those parts in order to compress with another algorithm. This greatly improve compression ratio with the other algorithm.
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How can I perfectly recreate a PNG losslessly compressed to JXL?
This may be of help. (a255854 and d649919)
XADMaster
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Attempting to re-create / replicate an archive made years ago with an unknown application, which is no longer complete on a file-sharing network
Rar would compress them with plain LZ, there's nothing special for jpegs there. However Winzip has a special codec for jpegs - that could be a problem. https://github.com/MacPaw/XADMaster/tree/master/WinZipJPEG
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BTOP++ is a power resource monitor for Linux
https://github.com/MacPaw/XADMaster
in difference to unp and atool, unar does not depend on other tools to unpack the actual archive
What are some alternatives?
PDF-Writer - High performance library for creating, modiyfing and parsing PDF files in C++
below - A time traveling resource monitor for modern Linux systems
p7zip - A new p7zip fork with additional codecs and improvements (forked from https://sourceforge.net/projects/sevenzip/ AND https://sourceforge.net/projects/p7zip/).
unp - Unpacks things.
clawPDF - Open Source Virtual (Network) Printer for Windows that allows you to create PDFs, OCR text, and print images, with advanced features usually available only in enterprise solutions.
btop - A monitor of resources
xdelta - open-source binary diff, delta/differential compression tools, VCDIFF/RFC 3284 delta compression
iotop - A top utility for IO
mcm - MCM file compressor
HDiffPatch - a C\C++ library and command-line tools for Diff & Patch between binary files or directories(folder); cross-platform; runs fast; create small delta/differential; support large files and limit memory requires when diff & patch.
qpdf-rs - Rust bindings for QPDF C++ library
bpytop - Linux/OSX/FreeBSD resource monitor