QMediaCaptureSession crashes with QCoreApplication

I'm trying to write a GUI-less application that can capture video from webcam.

With `QCoreApplication` and not `QApplication`,

`QMediaCaptureSession::setCamera` crashes with

`qt.core.qobject.connect: QObject::connect: Cannot connect (nullptr)::orientationChanged(Qt::ScreenOrientation) to QVideoOutputOrientationHandler::screenOrientationChanged(Qt::ScreenOrientation)`

Reproduce:

```
#include <QtWidgets>
#include <QMediaCaptureSession>
#include <QCamera>
#include <QVideoSink>
#include <QObject>

int main(int argc, char *argv[])
{
QCoreApplication app(argc, argv);
// QApplication app(argc, argv);

QCamera camera;
QMediaCaptureSession session;
session.setCamera(&camera);
QVideoSink videoSink;
session.setVideoSink(&videoSink);

QObject::connect(&videoSink, &QVideoSink::videoFrameChanged, []()

);

camera.start();

returnapp.exec();
};
```