On Tue, Nov 29, 2005 at 08:42:53AM +0000, Philip Armstrong wrote:
> On Mon, Nov 28, 2005 at 01:56:03PM +0200, Ville Syrjälä wrote:
> > Nice. It would be nice to have the driver always do that but there is a 
> > tiny problem with that. If we were to create the pattern just once we'd 
> > have to make sure the application doesn't overwrite it. That would be 
> > quite problematic. The other option would be to generate the pattern 
> > when Flip() is called. That would work with double and triple buffering 
> > but would not work with single buffering.
> 
> Isn't the application *supposed* to be able to overwrite it? After all
> -- it probably knows the real aspect ratio of the clip it's playing.
> 
> There are some mpeg sequences which change aspect ratio part way
> through -- some recordings from DVB in the UK for instance can switch
> between a 4:3 program and 16:9 adverts (or vica versa).

The app would be able to overwrite it with using Lock()/Unlock().

-- 
Ville Syrjälä
[EMAIL PROTECTED]
http://www.sci.fi/~syrjala/

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