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n5-zstandard
Zstandard Compression for N5
This library uses the Zstandard Java Native Interface implementation by Luben Karavelov: zstd-jni
Compression parameters
A value of 0 usually indicates the default according to the Zstandard manual.
Standard parameters
- level (default: 3)- standard levels range from 1 to 22. Negative levels offer faster compression at the cost of compression ratio.
- nbWorkers - Number of worker threads to spawn
- windowLog - Maximum allowed back-reference distance, expressed as a power of 2
Advanced Parameters
- hashLog - Size of the initial probe table, as a power of 2
- chainLog - Size of the multi-probe search table, as a power of 2
- searchLog - Number of search attempts, as a power of 2
- minMatch - Minimum size of searched matches
- targetLength - Impact of this field depends on strategy
- strategy - See ZSTD_strategy enum definition
- jobSize - Size of a compression job. This value is enforced only when nbWorkers >= 1
- overlapLog - Control the overlap size, as a fraction of window size
- dict - Dictionary for compression
zstd-jni Parameters
- useChecksums - Enable checksums for the compressed stream.
- setCloseFrameOnFlush - Enable closing the frame on flush.
zstd-jni documentation
https://www.javadoc.io/doc/com.github.luben/zstd-jni/latest/index.html
Zstandard documentation
The Zstadard manual contains important details about using Zstandard.