[Ffmpeg-devel] Embedded preview vhook/voutfb.so /dev/fb

Rich Felker dalias
Tue Mar 27 09:15:10 CEST 2007


On Tue, Mar 27, 2007 at 08:50:29AM +0200, V?ctor Paesa wrote:
> Hi,
> 
> > Michael Niedermayer writes:
> >  > Hi
> >  >
> >  > On Sun, Mar 25, 2007 at 12:54:54PM -0400, Marc Hoffman wrote:
> >  > >
> >  > > How would one go about including this type of video hook into the
> >  > > mainline ffmpeg tree?  This is slightly off the beaten path however
> >  >
> >  > vhook is deprecated, port libmpcodecs or a better filter system to
> > ffmpeg
> >  > and implement your filter in that
> >  >
> >
> > ok I can look at that if it helps the group. Are we trying to migrate
> > the best parts of mplayer into ffmpeg? I guess I don't understand the
> > big picture if this is posted and I should have read something please
> > pardon my ignorance and just put me in the right direction.
> 
> Here is a good description of the intended libmpcodecs port:
> http://article.gmane.org/gmane.comp.video.ffmpeg.devel/39130

I'd like to see something much more radical. libmpcodecs is very very
poorly designed and not a good direction for a filter layer. The worst
part is that every single filter duplicates tons of 'infrastructure'
code which tends to lock you into the bad design. If we could nail
down the ideal abstraction and api for the actual filters, simple
filters would become just a few lines of code, and in complex ones at
least all the complexity would be in the actual behavior rather than
the ugly interaction with a poorly designed and inflexible filter
framework...

Rich




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