drewnoakes/metadata-extractor

Samsung SubIFD User Comment contains non-printable characters

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#105 建立於 2015年4月26日

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 (13 留言) (0 反應) (0 負責人)Java (2,411 star) (470 fork)batch import
format-exifhelp wanted

描述

Issue:

  1. Getting weird printout on User comment field Version: metadata-extractor-2.8.1.jar and xmpcore-5.1.2.jar Target Device: Samsung Note 3 Running Android 5.0 I have kept sample data on Dropbox, so I do not mess with images while transferring: Dropbox images and output: https://www.dropbox.com/sh/j27tre1cdarwms1/AADP37j9fT3FYQRRHH4NyLJPa?dl=0
  2. Not sure if it is part of this, but I do not see "Device Make" and "Device Model" shown in output by library.

貢獻者指南

技術棧
java
領域
data
議題類型
bug
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。
half day
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 metadata formatmetadata extractor library internals
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。
30
研究方向
Investigate the SubIFD User Comment field in Samsung images. Look at the metadata extractor source code for reading User Comment (likely in ExifIFD0Descriptor or similar). The issue involves non printable characters in the User Comment (tag 0x9286). Check how the library decodes this field and whether it filters non printable characters. Also verify if 'Device Make' and 'Device Model' are missing due to a different tag or parsing issue. Examine sample images from the Dropbox link to replicate the problem. Consider checking for existing PRs or discussions that may have addressed this.