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  1. Qt
  2. QTBUG-127784

Inaccurate color handling when no RHI backend is available

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Details

    • Bug
    • Resolution: Unresolved
    • P3: Somewhat important
    • None
    • 6.5, 6.7, 6.8
    • Multimedia
    • None
    • All
    • f4ae42d8d (dev), fcce6da7c (6.8), 465aa31c2 (6.7), 108455f29 (tqtc/lts-6.5)

    Description

      If RHI based rendering is disabled, QVideoFrame converts video frames from YUV to RGB using a CPU implementation instead of the primary shader-based GPU implementation. The output from the CPU implementation of QVideoFrame::toImage() is in some cases failing to apply the correct color transformations, leading to inaccurate output. This is primarily an issue with the offscren QPA plugin, but is causing unit tests to fail if GPU rendering is unavailable or set to offscreen.

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          relates to

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-127744 tst_qvideoframe failed on Ubuntu 24.04 offscreen(arm64)

          • 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; 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

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-127745 tst_qvideoframecolormanagement failed on Ubuntu 24.04 offscreen(arm64)

          • 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; 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

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-127746 tst_qmediaplayerbackend failed on Ubuntu 24.04 offscreen(arm64)

          • 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; 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
          For Gerrit Dashboard: QTBUG-127784
          # Subject Branch Project Status CR V
          581311,6 Don't run GPU tests if RHI rendering is unsupported dev qt/qtmultimedia Status: MERGED +2 0
          581588,2 Don't run GPU tests if RHI rendering is unsupported 6.8 qt/qtmultimedia Status: MERGED +2 0
          585383,2 Don't run GPU tests if RHI rendering is unsupported 6.7 qt/qtmultimedia Status: MERGED +2 0
          585493,3 Don't run GPU tests if RHI rendering is unsupported tqtc/lts-6.5 qt/tqtc-qtmultimedia Status: MERGED +2 +1

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            People

              qtmultimediateam Qt Multimedia Team
              johanseg Jøger Hansegård
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              Dates

                Created:
                Updated:

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