facebook/zstd

Add stream-size option to pzstd

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#3,171 opened on Jun 21, 2022

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feature requestgood first issuehelp wanted

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Description

The standard zstd tool has a --stream-size option so the file size can be set for streamed compression. However, pzstd doesn't support this option, so any file compressed with pzstd has to be decompressed with a stream (so, eg, the PyPi zstd module can't be used).

Contributor guide

Research direction
Study the implementation of stream size in zstd (single threaded) and adapt it for pzstd, which uses parallel compression. Ensure that the stream size is correctly propagated to the parallel compression context.
Tech stack
c
Domain
clitooling
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-2 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
Czstd streaming API
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
65