Look at copy constructor description.
śr., 13 cze 2018, 22:50 użytkownik Jason H <jh...@gmx.com> napisał:
> How can I get access to pixel data (for reading) when being presented a
> frame? I have the following:
>
> class VideoSurface: public QAbstractVideoSurface {
> bool present(const QVideoFrame &frame) override {
> // I can't map() because frame is const and map() is not marked const
> // and frame is not already mapped, so what can I do with it?
> }
> };
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