[MPlayer-dev-eng] Removal of backing store

[Reimar Döffinger]

On Sun, Aug 24, 2008 at 02:49:40PM +0200, Benjamin Zores wrote:
> Reimar Döffinger wrote:
> > On Sun, Aug 24, 2008 at 02:17:09PM +0200, Stephane Marchesin wrote:
> >> On Sat, Aug 23, 2008 at 12:25 PM, Reimar Döffinger
> >> <Reimar.Doeffinger at stud.uni-karlsruhe.de> wrote:
> >>>> Backing store doesn't affect Xv windows.
> >>> That is contradicting yourself, if it didn't affect Xv windows there
> >>> would be no need to disable it.
> >>> Maybe it does indeed not affect the colorkey-drawing, that is possible,
> >>> but I have no clue.
> >> When you have a hw overlay, backing store affects only the colorkey,
> >> not the video pixels. If the purpose of the backing store in mplayer
> >> is to repaint the colorkey, automatic colorkey repainting handles it
> >> for you.
> > 
> > That is not completely correct, automatic colorkey repainting is not
> > always available, and in rare cases has issues (which is why MPlayer has
> > an option to disable it). I also do not know if it can handle cases
> > where people actually use the color key, e.g. frontends might use
> > it to draw their own OSD with little effort.
> 
> Just my 2cents but we're talking about one simple flag.
> Why not simply add an option to vo x11:xv to enable/disable backing 
> store and have disable by default and we're done with it ?

Yes, I was thinking about handling it together with ck-method, though
currently "auto" needs to be explicitly set so it might not be the best
idea...