On Tue, Jul 28, 2015 at 10:07:02 +0200, Moritz Barsnick wrote:
> Check the documentation of the scale filter on this:
D'uh, wrong quote. This I meant to quote:
If one of the values is -n with n > 1, the scale filter will also
use a value that maintains the aspect ratio of the input image,
calculated from the other specified dimension. After that it will,
however, make sure that the calculated dimension is divisible by n
and adjust the value if necessary.
> So, you probably need to change "-vf scale=1280:-1" to "-vf
> scale=1280:-2" or "-vf scale=1280:-4".
This stands.
Cheers,
Moritz
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