[FFmpeg-user] Overlay filter feature suggestion

Paulo Barretto pmbarretto at gmail.com
Wed Jun 4 18:14:54 CEST 2014

I am not a developer. At least, not one at that level. You can disregard my
stupid opinion.

There's nothing wrong with the crop filter, but it just crops. For zooming
the video should be scaled, not cropped.

No need to think about the overlay filter.
I mean a filter with time-dependent width and height parameters, that would
scale each frame and keep the output cropped and padded to constant
Just like rotate filter does.

Paulo Barretto

2014-06-04 11:09 GMT-03:00 Carl Eugen Hoyos <cehoyos at ag.or.at>:

> Paulo Barretto <pmbarretto <at> gmail.com> writes:
> > I would like to ask for a feature that seems to
> > me not very difficult to implement:
> (Then I am surprised that you wrote a mail to the
> user mailing list instead of sending a patch to
> the developer mailing list.)
> > make the overlay filter accept expression parameters
> > for height and width of the overlayed video, with
> > timestamp 't' as an expression parameter.
> What's wrong with the crop filter?
> Carl Eugen
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