> Pekka Väänänen:
> > 1. Is it possible to preserve the pixels of a frame for easy delta
> > updates?
> > In that 2009 patch set they used an old "FF_BUFFER_HINTS_PRESERVE"
> > flag
> > that doesn't exist anymore.
> >
>
> You keep a reference to the earlier frame (use av_frame_ref()).
The frame
Pekka Väänänen:
> 1. Is it possible to preserve the pixels of a frame for easy delta updates?
> In that 2009 patch set they used an old "FF_BUFFER_HINTS_PRESERVE" flag
> that doesn't exist anymore.
>
You keep a reference to the earlier frame (use av_frame_ref()).
> 2. Is it problematic to derefe