Uploaded image for project: 'Qt'
  1. Qt
  2. QTBUG-53019

[QML Video Player] Hard perfomance regressions on Windows

    XMLWordPrintable

Details

    • Bug
    • Resolution: Won't Do
    • P2: Important
    • None
    • 5.6.0
    • Multimedia
    • None
    • * Qt 5.6.0 x86 MSVC2013 (official)
      * Windows 10 x86
      * K-Lite Codec Pack (LAV decoders is active)
      * GPU: ATI Radeon 3000 Graphics
      * CPU: AMD Athlon II X3 455 Processor
      * Open GL: v 3.3

    Description

      Currently I faced with a big problem with the video playback performance. When I try to open mp4 video file from any of QML video examples, I got a high CPU loading (~40%) and the video is freesing and jerks (in not dependence on the window sizes). Though, using a C++ examples I got satisfactory performance (with the ~7% CPU loading).

      I have installed the K-Lite Codec Pack, where are automatically are used the LAV decoders to playback (in both cases as for C++ and as for QML).

      Attachments

        Issue Links

          is required for

          Task - A task that needs to be done. QTBUG-45599 Remove WMF backend

          • 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
          No reviews matched the request. Check your Options in the drop-down menu of this sections header.

          Activity

            People

              valentyn.doroshchuk Valentyn Doroshchuk
              kuzulis Denis Shienkov
              Votes:
              19 Vote for this issue
              Watchers:
              18 Start watching this issue

              Dates

                Created:
                Updated:
                Resolved:

                Gerrit Reviews

                  There are no open Gerrit changes