AVFoundation: Make AVFImageCaptureControl work without a preview
We only need to wait for a new viewfinder frame if we have a videorenderer control. If there's no videorender control, then there's no preview set and we can therefore just save the capture image immediately. Task-number: QTBUG-60329 Change-Id: I9ba34919f7cd82258482507c65db6367e330e231 Reviewed-by:Christian Stromme <christian.stromme@qt.io> Reviewed-by:
Timur Pocheptsov <timur.pocheptsov@qt.io>
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