[MPlayer-dev-eng] Re: [PATCH] VFCTRL_PERIODIC_UPDATE

[Jason Tackaberry]

On Sun, 2007-01-21 at 22:51 +0200, Uoti Urpala wrote:
> Depends on the vo. If you mean behavior with the whole patch then that
> calls flip() too, so just checking whether the picture changes doesn't
> show anything.

So the problem is that the filter doesn't reliably know what the last
flipped page is, so when it needs to update the image between frames, it
may not be as simple as the last mpi that was given to the filter's
put_image().

I suppose this could be fixed with some mechanism for a filter to ask
the vo for the most recently flipped mpi.  But I think at the vo layer
there is no longer any concept of an mpi.  Obviously knowing mplayer's
architecture better than I, what do you think the best way to solve this
would be?

Cheers,
Jason.