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Dictionary support in compression #204

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heikkisalokantosc opened this issue Mar 17, 2023 · 1 comment

heikkisalokantosc commented Mar 17, 2023

Request to add CompressBlockWithDict(src, dst, dict []byte).

Decompression with dictionary seems to be already supported by UncompressBlockWithDict(src, dst, dict []byte).

It could also use some documentation regarding the format of the dictionary and how to generate it. Probably this still applies:

lz4 doesn't specify how to build a dictionary. All it says is that it can be any file up to 64 KB.
This approach is compatible with zstd dictionary builder, which can be instructed to create a 64 KB dictionary with this command: zstd --train dirSamples/* -o dictName --maxdict=64KB

The text was updated successfully, but these errors were encountered:

Owner

pierrec commented Jan 8, 2024

Happy to add it, open to PR.

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