[MPlayer-users] Mplayer crashes when adjusting contrast to the lowest value

[Reimar Döffinger]

On Sun, Jan 31, 2010 at 03:42:20PM +0100, Reimar Döffinger wrote:
> On Sun, Jan 31, 2010 at 03:02:02PM +0100, Giorgio wrote:
> > 2010/1/31 Reimar Döffinger <Reimar.Doeffinger at gmx.de>:
> > > On Sat, Jan 30, 2010 at 11:02:43PM +0100, Giorgio wrote:
> > >> I've noticed that when I play a file or watch tv using -vo gl, if I
> > >> press the '1' key and
> > >> keep it pressed until the image goes dark and the cursor on the OSD
> > >> move to its lowest
> > >> value, MPlayer crashes. Example:
> > >
> > > Two solutions:
> > > 1) Let OpenGL do it, use e.g. -vo gl:yuv=2
> > 
> > This solution works great, but the result is somewhat different,
> > here's a screenshot of the image when the contrast is set to minimum:
> > http://imagebin.ca/view/FqPE1hSN.html
> 
> Hm, yes. I admit I considered it more correct, but to be honest I don't know.
> With that one contrast really only reduces contrast, the other one also
> decreases brightness (3) and saturation (7).

Or easier to test:
-contrast -50 -brightness -25 -saturation -50 -vo gl:yuv=2
should be mostly the same as
-contrast -50 -vo gl
I don't like the behaviour of the later since it makes it impossible to
get the effect your screenshot shows, but I don't mind adapting behviour
(possibly even configurable) if I get a better idea of what people like
and expect.