QCameraDevice Class

Detailed Description

QCameraDevice represents a physical camera device and its properties.

You can discover what cameras are available on a system using the availableCameras() and defaultCamera() functions. These are contained within QtMultimedia::MediaDevices.

This example prints the name of all available cameras:

const QList<QCameraDevice> cameras = QMediaDevices::videoInputs();
for (const QCameraDevice &cameraDevice : cameras)
    qDebug() << cameraDevice.description();

A QCameraDevice can be used to construct a QCamera. The following example instantiates a QCamera whose camera device is named mycamera:

const QList<QCameraDevice> cameras = QMediaDevices::videoInputs();
for (const QCameraDevice &cameraDevice : cameras) {
    if (cameraDevice.description() == "mycamera")
        camera = new QCamera(cameraDevice);
}

You can also use QCameraDevice to get general information about a camera device such as description, physical position on the system, or camera sensor orientation.

QCamera myCamera;
QCameraDevice cameraDevice = camera->cameraDevice();

if (cameraDevice.position() == QCameraDevice::FrontFace)
    qDebug() << "The camera is on the front face of the hardware system.";
else if (cameraDevice.position() == QCameraDevice::BackFace)
    qDebug() << "The camera is on the back face of the hardware system.";

qDebug() << "The camera sensor orientation is " << cameraDevice.orientation() << " degrees.";