[vlc-devel] [RFC] transform: add motion detection
remi at remlab.net
Thu Nov 1 18:33:48 CET 2012
Le jeudi 1 novembre 2012 18:15:28, Pierre Ynard a écrit :
> > You cannot assume that the parent is any particular kind of object, only
> > that there is one.
> Right, but is there any real chance that the parent won't be the vout
Streaming output is very conceivable, if not possible already.
> > Also, I think this does not belong in transform because:
> > - Transform does not alter the format while running. Motion needs to.
> That's why it triggers the recreation of the filter chain. I don't
> really see the problem with that, except a mild semantic one maybe.
The way it's done is an ugly hack that I would much rather leave of out the
clean transform plugin.
> > - Transform is a top contender for ASM optimizations, that would break.
> > - Transform only rotates pictures. Motion should rotate pictures _and_
> > subs.
> Ah. Is there some place in the video output where you can rotate subs
> (or both) ?
I don't think anything does it currently, though sub filters might be able to.
But the point is, the transform plugin is meant to fix non-top-left-direct
pictures typically coming from cameras or camera records.
Accelerometry however should rotate everything on the screen, not just the
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