Jeffrey Dever <jsdever@xxxxxxxxxxxx> writes:
> I don't understand the point of the VIDIOCCAPTURE ioctl. I expected
> that I would have to call it before doing a read(). But there is no
> need, after VIDIOCSWIN the read works anyway.
>
> According to the v4lapi:
>
> Merely setting the window does not enable capturing. Overlay
^^^^^^^
Screen overlay, i.e. DMA to the window on your (X11) display ...
Gerd
--
Weil die späten Diskussionen nicht mal mehr den Rotwein lohnen.
-- Wacholder in “Melanie”
