QCamera + QCameraViewfinder: how to mirror the the image displayed in the viewfinder?

SGaist

You don't have to rebuild all of Qt just to modify one module. But the solution I have in mind might not be an optimal use of the API.

HymerB534

@Violet-Giraffe Hi Violet-Giraffe, I've just bought 3 USB wide angle cameras for my van - I was looking at writing an app to display reversing cameras - did you solve the mirroring issue ?

veryqtperson

I've encountered the same necessity - to mirror the video output of the camera.

I found a solution which involves a custom wrapper:

class VideoWrapper : public QAbstractVideoSurface

Then you'll be able to control QVideoSurfaceFormat and perform setMirrored in its start method.

That's actually similar to what @SGaist proposed back then.