drewnoakes/metadata-extractor

Detect incorrect makernote offsets

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#404 建立於 2019年6月5日

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 (6 留言) (1 反應) (2 負責人)Java (2,411 star) (470 fork)batch import
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描述

[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?

貢獻者指南

技術棧
java
領域
data
議題類型
feature
難度面向新貢獻者的預計實作難度，1 表示很小改動，5 表示專家級工作。
3
預計時間有經驗貢獻者完成調查、實作、測試並準備 pull request 的粗略時間範圍。
1-2 days
活動狀態議題目前的可參與程度：新鮮、活躍、陳舊、阻塞或等待維護者輸入。
stale
清晰度議題是否清楚說明預期改動、驗收標準和下一步。
mostly clear
前置要求
JavaEXIF metadatamaker notes conceptmetadata extractor library structure
新手友善度1-100 的估計分數，表示該議題對首次貢獻者的友善程度。
20
研究方向
Investigate how EXIFTool detects incorrect maker notes offsets, as referenced in the StackOverflow link. Explore the metadata extractor codebase to understand current maker notes parsing, focusing on ExifReader and MakerNotesDirectory classes. Determine if a similar offset fix (e.g., adjusting by 1060) can be applied. Review the linked SO thread for additional context and ensure the fix integrates cleanly with the library's existing architecture.
Detect incorrect makernote offsets · drewnoakes/metadata-extractor#404 | Good First Issue