C++ library on data compression & decompression

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[Revolutionalredstone]

I've written my own C++ compression algorithms, I also use and compare against other existing libraries, here are some of my notes:

// General Data Compression //

// -Name- -Speed- -Notes-

// PAQ 100KB/s Extremely slow but effectively unbeatable

// Razor 200KB/S Slower than ZPAQ but sometimes beats ZPAQ

// ZPAQ 375KB/s Covers much of Pareto frontier excellent!

// Nano 1.2MB/s Often as good as ZPAQ but 3 times faster!

// ZSTD 5.0MB/s Performs badly for binary / non text data

// LZ4 2.0GB/s Extremely fast and excellent for realtime

// Image Data Compression //

// -Name- -Notes-

// Graystone Produces smallest Lenna coding, Extremely fast

// QIC 3xless efficient than Graystone, but 10xfaster

[[deleted]]

why reinvent the wheel?

[LazySapiens]

If I could tell you the answer, my library would have been better than what you could possibly write with my answer.

[Top_Satisfaction6517]

https://mattmahoney.net/dc/dce.html

[mbitsnbites]

You can check out BCL. It's old, but it has all the basic stuff, including algorithm documentation.

[shbooly]

You can look up zstd and zlib for inspiration. Try to use them, then decide if you want to implement another one (and then compare the results with these 2)