working qt camera

/********************************************************************************
** Form generated from reading UI file 'mainwindow.ui'
**
** Created by: Qt User Interface Compiler version 5.13.0
**
** WARNING! All changes made in this file will be lost when recompiling UI file!
********************************************************************************/

#ifndef UI_MAINWINDOW_H
#define UI_MAINWINDOW_H

#include <QtCore/QVariant>
#include <QtWidgets/QApplication>
#include <QtWidgets/QGridLayout>
#include <QtWidgets/QGroupBox>
#include <QtWidgets/QMainWindow>
#include <QtWidgets/QPushButton>
#include <QtWidgets/QStatusBar>
#include <QtWidgets/QWidget>
#include <QDebug>
#include <QMediaPlayer>
#include <QNetworkRequest>
#include <QVideoWidget>

#include <iostream>


QT_BEGIN_NAMESPACE

class Ui_MainWindow
{
public:
    QWidget *centralWidget;
    QGridLayout *gridLayout;
    QGroupBox *groupBox;
    QGridLayout *buttonLayout;
    QPushButton *pushButton;
    QGroupBox *groupBox_2;
    QGridLayout *gridLayout_2;
    QWidget *cameraWidget;
    QStatusBar *statusBar;

    QVideoWidget *_vw;
    QMediaPlayer *_player;


    void setupUi(QMainWindow *MainWindow)
    {
        if (MainWindow->objectName().isEmpty())
            MainWindow->setObjectName(QString::fromUtf8("MainWindow"));
        MainWindow->resize(732, 453);
        centralWidget = new QWidget(MainWindow);
        centralWidget->setObjectName(QString::fromUtf8("centralWidget"));
        gridLayout = new QGridLayout(centralWidget);
        gridLayout->setSpacing(6);
        gridLayout->setContentsMargins(11, 11, 11, 11);
        gridLayout->setObjectName(QString::fromUtf8("gridLayout"));
        groupBox = new QGroupBox(centralWidget);
        groupBox->setObjectName(QString::fromUtf8("groupBox"));
        buttonLayout = new QGridLayout(groupBox);
        buttonLayout->setSpacing(6);
        buttonLayout->setContentsMargins(11, 11, 11, 11);
        buttonLayout->setObjectName(QString::fromUtf8("buttonLayout"));
        pushButton = new QPushButton(groupBox);
        pushButton->setObjectName(QString::fromUtf8("pushButton"));

        buttonLayout->addWidget(pushButton, 0, 0, 1, 1);

        gridLayout->addWidget(groupBox, 0, 0, 1, 1);

        groupBox_2 = new QGroupBox(centralWidget);
        groupBox_2->setObjectName(QString::fromUtf8("groupBox_2"));
        gridLayout_2 = new QGridLayout(groupBox_2);
        gridLayout_2->setSpacing(6);
        gridLayout_2->setContentsMargins(11, 11, 11, 11);
        gridLayout_2->setObjectName(QString::fromUtf8("gridLayout_2"));
        cameraWidget = new QWidget(groupBox_2);
        cameraWidget->setObjectName(QString::fromUtf8("cameraWidget"));
        gridLayout_2->addWidget(cameraWidget, 0, 0, 1, 1);
        gridLayout->addWidget(groupBox_2, 1, 0, 1, 1);

        _vw = new QVideoWidget(cameraWidget);
        gridLayout_2->addWidget(_vw);
        _player = new QMediaPlayer;
        _player->setVideoOutput(_vw);

        const QUrl url = QUrl("rtsp://192.168.200.102:5554/playlist.m3u");
        const QNetworkRequest requestRtsp(url);
        _player->setMedia(requestRtsp);
        _player->play();

        MainWindow->setCentralWidget(centralWidget);
        statusBar = new QStatusBar(MainWindow);
        statusBar->setObjectName(QString::fromUtf8("statusBar"));
        MainWindow->setStatusBar(statusBar);

        retranslateUi(MainWindow);

        QMetaObject::connectSlotsByName(MainWindow);
    } // setupUi

    void retranslateUi(QMainWindow *MainWindow)
    {
        MainWindow->setWindowTitle(QCoreApplication::translate("MainWindow", "MainWindow", nullptr));
        groupBox->setTitle(QCoreApplication::translate("MainWindow", "LED", nullptr));
        pushButton->setText(QCoreApplication::translate("MainWindow", "PushButton", nullptr));
        groupBox_2->setTitle(QCoreApplication::translate("MainWindow", "Camera", nullptr));
    } // retranslateUi

};

namespace Ui {
    class MainWindow: public Ui_MainWindow {};
} // namespace Ui

QT_END_NAMESPACE

#endif // UI_MAINWINDOW_H