[MPlayer-dev-eng] aspect ratio with OSD

Dominik 'Rathann' Mierzejewski dominik at rangers.eu.org
Mon Jan 24 02:12:59 CET 2005

On Sunday, 23 January 2005 at 18:06, D Richard Felker III wrote:
> On Sun, Jan 23, 2005 at 05:33:57PM +0100, Csillag Kristof wrote:
> > Basically, the problem is that aspect ratio is not passed to the OSD
> > level by the VO drivers; every function call exported from the
> > OSD level only takes two parameters, width and height, and because the
> > VO drivers can do rescaling (like Xv), we can not calculate the aspect
> > from this.
> > 
> >  * * *
> > 
> > If we want to render OSD elements (both text subtitles and VOBsub
> > subtitles) with correct aspect rate, we must get the necessary
> > information from the VO drivers.
> > 
> > So, we have to opinions:
> > 
> > 1. To modify every OSD call in every VO driver,
> > 	to include this one extra parameter besides
> > 	the width and the height. (~70 lines.)
> I vote for option 1. MPlayer already has too many bad hacks with
> global vars.

Does this mean that after that, we can have a working -vf
autoexpand=aspect=4/3 that will add black borders to fit the movie within
the specified AR without the VO rescaling it to whatever it sees fit?


MPlayer RPMs maintainer: http://greysector.rangers.eu.org/mplayer/
"I am Grey. I stand between the candle and the star. We are Grey.
 We stand between the darkness ... and the light."
        -- Delenn in Grey Council in Babylon 5:"Babylon Squared"

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