[MPlayer-dev-eng] [PATCH] reduce flashing on resize with VDPAU

[Uoti Urpala]

On Mon, 2009-03-23 at 18:06 +0100, Reimar Döffinger wrote:
> On Mon, Mar 23, 2009 at 08:45:28AM -0700, Stephen Warren wrote:
> > The best way to handle this would be to use the VDPAU presentation queue's
> > timestamp mechanism; choose a timestamp for each frame to be presented,
> > give this to the presentation queue, then use the "displayed at" time
> > returned by the presentation queue status commands to determine whether
> > presentation is drifting to become late or not.
> 
> As I understood your last comment on this, this feature does still not
> allow play videos with higher fps than the vsync rate, thus frames still
> need to be dropped "manually" and to decided whether to do this or not
> we still better estimate if a vsync will happen "soon" or not.

Making the decision to drop the latest frame in flip_page is
undesirable, whatever logic that decision is based on. Ideally we
_never_ want to decide "this latest frame will be dropped". Rather we
want to drop an _earlier_ frame if it still hasn't been shown by the
time the next frame after it should be displayed. The possibility of
doing that should be investigated first.