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Video Lecture on windows

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  • T Offline
    T Offline
    The Qt Mayssa
    wrote on last edited by
    #1

    Greetings,
    To make it short, i need to use gstreamer on windows when reading videos and not direct show. As the doc mentionned it's only a variable to set ()! That was'nt enough ..

    How can i force the use of gstreamer ? how can i test it to know that it's gstreamer and not directshow ?

    Thank you :)

    JoeCFDJ 1 Reply Last reply
    0
    • T The Qt Mayssa

      Greetings,
      To make it short, i need to use gstreamer on windows when reading videos and not direct show. As the doc mentionned it's only a variable to set ()! That was'nt enough ..

      How can i force the use of gstreamer ? how can i test it to know that it's gstreamer and not directshow ?

      Thank you :)

      JoeCFDJ Offline
      JoeCFDJ Offline
      JoeCFD
      wrote on last edited by JoeCFD
      #2

      @The-Qt-Mayssa what is your Qt version?
      https://doc.qt.io/qt-6/qtmultimedia-index.html#changing-backends

      T 2 Replies Last reply
      0
      • SGaistS Offline
        SGaistS Offline
        SGaist
        Lifetime Qt Champion
        wrote on last edited by SGaist
        #3

        Hi,

        If you want GStreamer on Windows, you will first have to build the backend for it which means having GStreamer for Windows libraries as well. Then you will be able to switch the backend.

        Recent versions of Qt 6 uses ffmpeg by default on all platform though. Depending on your use case, it might do what you want.

        Interested in AI ? www.idiap.ch
        Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

        1 Reply Last reply
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        • JoeCFDJ JoeCFD

          @The-Qt-Mayssa what is your Qt version?
          https://doc.qt.io/qt-6/qtmultimedia-index.html#changing-backends

          T Offline
          T Offline
          The Qt Mayssa
          wrote on last edited by
          #4

          @JoeCFD it's 5.15.2

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          • JoeCFDJ JoeCFD

            @The-Qt-Mayssa what is your Qt version?
            https://doc.qt.io/qt-6/qtmultimedia-index.html#changing-backends

            T Offline
            T Offline
            The Qt Mayssa
            wrote on last edited by
            #5
            This post is deleted!
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            • T Offline
              T Offline
              The Qt Mayssa
              wrote on last edited by
              #6

              @SGaist Hi, i compiled the gstreamer on windows to get the librairies but the use of ffmpeg is more tempting to be honest. How is it possible tu use it? what 're the steps beside set a variable export QT_MEDIA_BACKEND=ffmpeg
              thank you

              SGaistS 1 Reply Last reply
              0
              • T The Qt Mayssa

                @SGaist Hi, i compiled the gstreamer on windows to get the librairies but the use of ffmpeg is more tempting to be honest. How is it possible tu use it? what 're the steps beside set a variable export QT_MEDIA_BACKEND=ffmpeg
                thank you

                SGaistS Offline
                SGaistS Offline
                SGaist
                Lifetime Qt Champion
                wrote on last edited by
                #7

                @The-Qt-Mayssa you have to use a recent version of Qt 6.

                Interested in AI ? www.idiap.ch
                Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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