pedrocr / pedrocr/rawloader

Expose ljpeg decoder

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#25 1 comment 1 reaction 0 assignees View on GitHub

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Dominant language
Rust
Stars
379
Forks
75
PR merge metrics
No merged PRs in 30d

Description

There's a ljpeg decoder here, but it's not exposed and not used in any way yet
https://github.com/pedrocr/rawloader/blob/master/src/decoders/mod.rs#L73

Is it possible to make it public? This decoder is unique because at the moment it's the only library in pure rust able to decode lossless jpeg. As a result, it's usable in webassembly context.

In addition, there's a decode_ljpeg_2components, but no decode_ljpeg_1components. I made a simple version of decode_ljpeg_1components function, would you mind reviewing it if I submit a pr?

Contributor guide

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start in src/decoders/mod.rs at the referenced decoder entry. Review how the existing ljpeg decoder and decode_ljpeg_2components function are exposed, then compare the proposed decode_ljpeg_1components function with that API. Done means the ljpeg decoder is publicly usable and the one-component case has a reviewed, consistent entry point.

Written by the indexing model from the issue text.

Assessment

Tech stack
rust
Domain
computer-vision
Issue type
Feature
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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