Zstandard
From Just Solve the File Format Problem
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Revision as of 13:11, 12 May 2019
Zstandard, or Zstd, is a general-purpose compression algorithm and file format. It is designed to have a good balance between compression ratio, compression speed, and decompression speed.
Zstandard is able to use a "dictionary" format to make compression of files of an already known type more efficient.
Contents |
Identification
For at least some versions of Zstd format, files begin with signature bytes 25 b5 2f fd. For files created since version 0.8.0 (August 2016[1]), the header is instead 28 b5 2f fd[2].
Software
- Zstandard →
zstd,unzstd,zstdcat
Links
References
- ↑ https://github.com/facebook/zstd/releases/tag/v0.8.0
- ↑ https://github.com/facebook/zstd/blob/dev/lib/zstd.h, definition of ZSTD_MAGICNUMBER
