Crash

[INotfound]

QML

import QtQuick 2.12
import QtQuick.Window 2.12
import QtMultimedia 5.12
import QZXing 3.1

Item { property string lastTag: "" property int detectedTags: 0 property int nWidth: Math.min(width,height)

Rectangle{
    id: bgRect
    color: "white"
    anchors.fill: videoOutput
}

Text{
    id: text1
    wrapMode: Text.Wrap
    color:"red"
    z: 50
    text: "Detected count: " + detectedTags
}
Text{
    id: fps
    font.pixelSize: 20
    anchors.top: parent.top
    anchors.right: parent.right
    z: 50
    text: (1000 / zxingFilter.timePerFrameDecode).toFixed(0) + "fps"
}

Camera{
    id:camera
    focus {
        focusMode: CameraFocus.FocusContinuous
        focusPointMode: CameraFocus.FocusPointAuto
    }
}

VideoOutput{
    id: videoOutput
    source: camera
    anchors.fill: parent
    autoOrientation: true
    filters: [ zxingFilter ]
    MouseArea {
        anchors.fill: parent
        onClicked: {
            console.log("VideoOutput.onClicked")
            camera.focus.customFocusPoint = Qt.point(mouse.x / width,  mouse.y / height);
            camera.focus.focusMode = CameraFocus.FocusMacro;
            camera.focus.focusPointMode = CameraFocus.FocusPointCustom;
        }
    }
    Rectangle {
        id: captureZone
        width: nWidth*0.6
        height: width
        anchors.centerIn: parent
        color:"transparent"
        border.color: "lightgreen"
        border.width: 3
        Rectangle{
            id:line
            width: parent.width*0.9
            height: 12
            color: "lightgreen"
            anchors.horizontalCenter: parent.horizontalCenter
            radius: 8

            PropertyAnimation{
                id:ani
                target:line
                properties: "y"
                duration: 1500
                from:0
                running: true
                to:captureZone.height - line.height
                onStopped: {
                    y=0
                    ani.start()
                }
            }
        }

    }
}

QZXingFilter{
    id: zxingFilter
    captureRect: {
        // setup bindings
        videoOutput.contentRect;
        videoOutput.sourceRect;
        return videoOutput.mapRectToSource(videoOutput.mapNormalizedRectToItem(Qt.rect(
            0.25, 0.25, 0.5, 0.5
        )));
    }

    decoder {
        enabledDecoders: QZXing.DecoderFormat_EAN_13 | QZXing.DecoderFormat_CODE_39 | QZXing.DecoderFormat_QR_CODE

        onTagFound: {
            console.log("onTagFound: ",tag + " | " + decoder.foundedFormat() + " | " + decoder.charSet());

            detectedTags++;
            lastTag = tag;
        }

        tryHarder: false
    }

    onDecodingStarted:
    {
        console.log("started");
    }

    property int framesDecoded: 0
    property real timePerFrameDecode: 0

    onDecodingFinished:
    {
        timePerFrameDecode = (decodeTime + framesDecoded * timePerFrameDecode) / (framesDecoded + 1);
        framesDecoded++;
        if(succeeded)
         console.log("frame finished: " + succeeded, decodeTime, timePerFrameDecode, framesDecoded);
    }
}

Text{
    wrapMode: Text.Wrap
    color:"red"
    anchors.bottom: parent.bottom
    z: 50
    text: "content: " + lastTag
}

}

> main.cpp

.... QApplication app(argc, argv); QZXing::registerQMLTypes(); .... return app.exec() ....

[ftylitak]

PR #205 might fix this issue. It will be closed and in case of new evidence that the crash still exists, feel free to reopen.