drewnoakes/metadata-extractor

Improved metadata parsing for HEIC files

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#594 opened on Nov 25, 2022

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format-heifhelp wantedimage-queue

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Description

Metadata-extractor can't read the EXIF and GPS tags from the referenced HEIC file. It is made with an iPhone 13 Pro with the latest iOS version and it has been edited with the iPhone Photo App.

File: https://jalbum.net/forum/servlet/JiveServlet/download/2-58642-359253-23524/IMG_8780.HEIC

(We have been testing with v2.15 of Metadata-extractor.)

Contributor guide

Research direction
Study the HEIC file format and its metadata structure. Investigate how metadata extractor currently processes HEIC files, focusing on the TIFF like container and the location of EXIF and GPS data. Examine the existing code for similar formats (e.g., JPEG, PNG) to understand the architecture. Consider using a hex editor or existing libraries to parse the provided HEIC file manually.
Tech stack
java
Domain
backend
Issue type
Bug
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
JavaMetadata extraction concepts
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
35