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How to use QMediaPlayer not in the main thread?

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  • maximmalofeevM Offline
    maximmalofeevM Offline
    maximmalofeev
    wrote on last edited by
    #1

    I'm try to use QMediaPlayer with my own VideoSurface derived from QAbstractVideoSurface and want to execute QAbstractVideoSurface::present not in the main thread, cose it could take a lot of time. For this i try to do:

    mediaPlayer = new QMediaPlayer;
    mediaPlaylist = new QMediaPlaylist(mediaPlayer);
    auto avi1 = QUrl::fromLocalFile(QDir::currentPath() + "/debug/1.avi");
    mediaPlaylist->addMedia(QMediaContent(avi1));
    mediaPlayer->setPlaylist(mediaPlaylist);
    videoSurface = new VideoSurface(mediaPlayer);
    mediaPlayer->setVideoOutput(videoSurface);
    mediaPlayer->moveToThread(&workerThread);
    workerThread.start();
    

    but QAbstractVideoSurface::present of videoSurface object still processes in the main thread. What do I wrong? How to resolve this issue (of course if it's possible:) )?

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    • SGaistS Offline
      SGaistS Offline
      SGaist
      Lifetime Qt Champion
      wrote on last edited by
      #2

      Hi and welcome to devnet,

      AFAIK, no that can't be done.

      What take so long ?

      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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