[vdr] Vdr-xine OSD question

Antti Seppälä a.seppala+vdr at gmail.com
Fri Jul 11 21:14:01 CEST 2008


2008/7/11 Todd Luliak <javatodd32 at yahoo.com>:
> I am running vdr + vdr-xine plugin + coreavc + xine being output at 1080i to
> an HDTV as the only display. Is there a simple way to lock the OSD to the
> resolution of the output device such that the OSD is not rescaled when
> switching between SD and HD sources? I played with X-overlay, but that was
> not what I was after. If not, could it be done in the source somewhere or is
> the OSD anti-aliased and overlayed on the video before being sent to the
> output device (xine, in my case)? I've looked around quite a bit on the net
> but I guess my google-foo is failing me on this one. I just miss the
> rock-solid OSD of the FF card setup...
> Thanks!
>

In an effort to create something to solve such issues with
xineliboutput plugin I came up with an idea of this HUD type OSD.
Basically it means that OSD is rendered to a separate transparent
surface on top of video and then these are blended together by the
display hardware. This way the size of the OSD is bound to the size of
the used window rather than the size of the video stream. In other
words no OSD scaling will be necessary even though the video size
changes.

The HUD implementation has been integrated into the CVS of
xineliboutput plugin. To operate it requires support for xorg render
extension and presence of composite display manager such as xcompmgr.
It also requires powerful display adapter and drivers with support for
these modern extensions. Maybe you can try it to see if it produces
results that you are hoping for?

Regards,

-- 
Antti Seppälä
<a.seppala at gmail.com>



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