How to add network caching to qml-player

[ShettyRa]

I have successfully built and run QML Player.

I would like to set the network-caching option which is from the VlcMedia.

I have created a pointer of VlcMedia and want to call it in VlcVideoPlayer of (video.qml)

below is the code

main.cpp

#include <QtCore/QCoreApplication>
#include <QtGui/QGuiApplication>
#include <QtQuick/QQuickView>

#include <VLCQtCore/Common.h>
#include <VLCQtQml/QmlVideoPlayer.h>

#include <VLCQtCore/Media.h>

int main(int argc, char *argv[])
{
    QCoreApplication::setApplicationName("VLC-Qt QML Player");
    QCoreApplication::setAttribute(Qt::AA_X11InitThreads);

    QGuiApplication app(argc, argv);
    VlcCommon::setPluginPath(app.applicationDirPath() + "/plugins");
    VlcQmlVideoPlayer::registerPlugin();

    QQuickView quickView;
    quickView.setSource(QUrl(QStringLiteral("qrc:/qml/video.qml")));    
    quickView.setResizeMode(QQuickView::SizeRootObjectToView);
    quickView.show();

    VlcMedia* media;
    media->setOption(QString(QStringLiteral("qrc:/qml/video.qml")));
    //media->setOption(":network-caching=200");

    return app.exec();
}

video.qml

import QtQuick 2.0
import VLCQt 1.0 
//import VLC-Qt_1.0.1_win64_msvc2013.include.VLCQtCore.Media 1.0

Rectangle {
    width: 640
    height: 480
    color: "black"

    VlcVideoPlayer {
        id: vidwidget
        anchors.fill: parent

        url: "rtsp://admin:[email protected]:554/cam/realmonitor?channel=1&subtype=0&unicast=true"
        String: ":network-caching=300"
    }
}

The build is sucessfull but there is a debug error

can someone tell me where am i going wrong