How to run Camera on Linux?

[Ramiz]

I am running camera on Linux and getting an error that

defaultServiceProvider::requestService(): no service found for - "org.qt-project.qt.camera"

this is my code

    Camera::Camera(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::Camera)
{
    ui->setupUi(this);
    mCamera = new QCamera(this);
    recorder = new QMediaRecorder(mCamera,this);
    mCameraViewfinder = new QCameraViewfinder(this);
    mCameraImageCapture = new QCameraImageCapture(mCamera,this);
    mLayout = new QVBoxLayout;

    mCamera->setViewfinder(mCameraViewfinder);
    mLayout->addWidget(mCameraViewfinder);
    ui->scrollArea->setLayout(mLayout);
    //mCameraViewfinder->show();
    mCamera->start();
}

Any help?

[jsulm]

@Ramiz Is GStreamer installed?

[Ramiz]

yes I have installed it.

[jsulm]

@Ramiz Could be a hint: https://stackoverflow.com/questions/42268777/requestservice-no-service-found-for-org-qt-project-qt-camera

[Ramiz]

I have checked that link but didnt get any help.Same problem

[SGaist]

Hi,

What version of GStreamer do you have ?
Which plugins ?
What version of Qt are you using ?
What distribution are you running ?

[Ramiz]

GStreamer 1.0 and QT version 5.10

[SGaist]

There are two missing answers.

As for further trouble shooting: run your application with the QT_DEBUG_PLUGINS environment variable set to 1. You can do that in the Run part of the Project panel.

[Ramiz]

@jsulm @SGaist I have solved that issue by updating the Linux version and now my camera opens but didn’t display anything as shown in picture.

Do you know what’s the issue now?

[jsulm]

@Ramiz Did you try to use your camera with for example Cheese?

[Ramiz]

@jsulm Yes cheese is working fine and even when I run it from Qt the flash light of camera gets on or visible but no display.

[mranger90]

Are you running on a native linux machine or are you in a Virtual Machine?
I ask because I usually get the same results as you do when in a VM.