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  1. Qt
  2. QTBUG-47261

Regression: QImage fails to load jpg file with EXIF

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Details

    • Bug
    • Resolution: Duplicate
    • P1: Critical
    • 5.5.1
    • 5.5.0
    • Image formats
    • None
    • Linux, Windows

    Description

      Loading the attached image file with exif data in it's header used to work fine in Qt 5.4 but has stopped working in Qt 5.5. Instead of a valid QImage the result is a null image.

      If the EXIF data is stripped from the jpg header (by using jhead --pure-jpg, see [0]) the file works fine.

      I have tested this behaviour on Windows and Linux, both using QImage::load() and QImage::loadFromData(). The result is a null image in all of these cases.

      [0] http://www.sentex.net/~mwandel/jhead/

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          duplicates

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-46870 [REG 5.4.2 -> 5.5.0] JPEG-compressed images cannot be rendered correctly.

          • P1: Critical - Urgent and Important, will STOP the release if matched with set FixVersion field. This includes regressions from the last version that are not edge cases; Data loss; Build issues; Flaky tests; All but the most unlikely crashes/lockups/hanging; Serious usability issues and embarrassing bugs & Bugs critical to a deliverable. This is the highest possible priority for requirements.
          • Closed
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              vgt Eirik Aavitsland
              selmf Felix Kauselmann
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              Dates

                Created:
                Updated:
                Resolved:

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