diegomura / diegomura/jay-peg

Add JFXX Support

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#17 0 comments 1 reaction 0 assignees View on GitHub
Dominant language
JavaScript
Stars
9
Forks
7
PR merge metrics
No merged PRs in 30d

Description

Some images embed thumbnail using JFXX format, as documented by https://www.ecma-international.org/wp-content/uploads/ECMA_TR-98_1st_edition_june_2009.pdf section 10.1

It seems that JFXX is only used by a small subset of jpegs though. I made a WIP implementation here: https://github.com/Friendseeker/jay-peg/tree/JFXX-support and if someone need to parse JFXX, feel free to fork the branch and complete the implementation

Contributor guide

No contributing guide indexed for this repository

Research direction

Start by reviewing the ECMA TR-98 specification, section 10.1, and the WIP implementation on the linked JFXX-support branch. Compare that work with the current jay-peg decoder and verify completion by successfully parsing JPEGs containing JFXX thumbnails.

Written by the indexing model from the issue text.

Assessment

Tech stack
javascript
Domain
computer-graphics
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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