As far as I know, it is impossible to tell in which position the camera is
before you actually see its viewfinder in VideoOutput :)
In my case I had a camera upside-down, so 180 degree rotation. I managed it
like this:
property bool cameraUpsideDown: true
Camera {
id: camera
metaData.orientation: cameraUpsideDown ? 180 : 0
// ...
}
VideoOutput {
orientation: cameraUpsideDown ? 180 : 0
source: camera
// ...
}
And then if you need to preview images made by this camera you can bind their
orientation to EXIF values:
Image {
autoTransform: true
// ...
}
But I feel like I misunderstood your question.
---
Artem Sidyakin
> On 9 Dec 2018, at 23:53, Alexander Ivash <[email protected]> wrote:
>
> пн, 10 дек. 2018 г. в 12:33, René Hansen <[email protected]>:
> You can get the Camera orientation like so:
>
> QCamera *cam = qvariant_cast<QCamera
> *>(m_filter->camera()->property("mediaObject"));
> QCameraInfo(*cam).orientation()
>
> Then in case orientation is not % 180, you can rotate the image.
>
>
> Is it the same as QML Camera's 'orientation' ?
> http://doc.qt.io/qt-5/qml-qtmultimedia-camera.html#orientation-prop
> Or this is actual orientation? Maybe you could share sample which 'unrotate'
> based on this property?
>
>
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