[FFmpeg-devel] [PATCH 6/6] Add rotate90 filter.

[Stefano Sabatini]

On date Tuesday 2010-11-23 18:46:17 -0500, Ronald S. Bultje encoded:
> Hi,
> 
> On Tue, Nov 23, 2010 at 6:34 PM, Stefano Sabatini
> <stefano.sabatini-lala at poste.it> wrote:
> > On date Tuesday 2010-11-23 15:18:14 -0800, Baptiste Coudurier encoded:
> >> On 11/23/2010 12:29 PM, Stefano Sabatini wrote:
> > [...]
> >> What's wrong with the rotate filter ?
> >
> > overkill for just rotating by 90 degrees (and slower).
> 
> So integrate this as an optimization in that filter.

That's actually a good idea, but I was thinking about the rotate
filter like something a bit more general, which should take:
angle_expr:output_size:padding_color

the rotate90 is just simpler and does what the 95% of the users need
(and I want to take some time to actually study the algorithms for
spatial transform of that kind), that's why I thought that having two
separate filters may be a good idea, and would let us to deliver the
simple filter *now*.
-- 
FFmpeg = Friendly Furious MultiPurpose Emblematic Gargoyle