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USB over Network camera is not working

  • We designed an interface with three camera views, it detects cameras via QML files:

    import QtQuick 2.0
    import QtMultimedia 5.9
    Item {
        Rectangle {
            anchors.fill: parent
            width: parent.width
            height: parent.height
            color: 'black'
        Camera {
            id: camera
            // kamera seçimi yap
            deviceId: QtMultimedia.availableCameras[1].deviceId
        VideoOutput {
            source: camera
            anchors.fill: parent
            focus : visible // to receive focus and capture key events when visible

    We also use USB over Network app to connect other devices cameras, but Qt has a problem with it.
    It detects the network camera but won't show it. It just shows a black screen. Normally the app connects perfectly, we can use the network camera with other camera apps. How can we solve this? Why we can't get the data from network cameras.

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