drewnoakes/metadata-extractor

Detect incorrect makernote offsets

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#404 opened on Jun 5, 2019

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 (6 comments) (1 reaction) (2 assignees)Java (470 forks)batch import
format-maker-noteshelp wantedimage-queue

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Description

[FEATURE REQUEST]

Copied from https://stackoverflow.com/q/56445656/432844

EXIFTool can detect when the offset of tags is incorrect

[ExifTool] Warning : [minor] Possibly incorrect maker notes offsets (fix by 1060?)

Can we detect incorrect offsets with metadata-extractor and ideally fix them in the same way?

Contributor guide

Research direction
Study how EXIFTool detects and fixes incorrect maker notes offsets. Examine the existing maker notes parsing code in metadata extractor, then implement similar offset detection and correction logic.
Tech stack
java
Domain
backend
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.
Half day
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
JavaGitEXIF metadata understanding
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
60