[vdr] Re: fonts

[Andreas Schultz <aschultz+vdr@warp10.net>]

On Thursday 05 September 2002 17:56, Paul Bristow wrote:
> Christian Berger wrote:
> >Maybe a stupid question. Those 2MB RAM seem to also contain the
> >framebuffer of the card. Wouldn't it be possible to stop sending a stream
> >to the DSP and directly overwrite the framebuffer to get full-colour
> >menues.
>
> The way it's done in a lot of Set Top Boxes is to send an MPEG I-frame to
> the MPEG decoder and run the OSD over that.  That way you have 24bit colour
> for the background with the text and highlight being done using the OSD.
>  Is that possible with vdr?

It would - however. the teletext plugin development has shown that the DVB 
card is very sensitive to malformed MPEG frames. Generating proper frames or 
small streams that do not chrash the firmware appear's to be difficult.

Andreas