[FFmpeg-user] Alpha not working as expected with geq filter
Carl Eugen Hoyos
cehoyos at ag.or.at
Tue May 21 21:59:59 CEST 2013
Paul B Mahol <onemda <at> gmail.com> writes:
> >> Add format filter before geq filter, like this:
> >>-vf format=rgba,geq.....
> > I suspect geq does not support rgba (it should work
> > without the format filter if it did), format=gbrap
> > (if that is the name of planar rgb alpha) should work.
> Not needed.
You mean apart from the fact that an additional
third scaler is inserted with "format=rgba"
which will have a performance impact on real
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