[vdr] Re: I have a dream ;-)

[Stefan Schluenss <Stefan.Schluenss@gmx.de>]

> On Monday 22 July 2002 14:28, Stefan Schluenss wrote:
> > Hi guys,
> >
> > i'm currently doing some investigations on the OSD capability of the DX
> R3.
> > It seems to be possible to encode the menu as subpicture. While using s
> ome
> > highlight features of the subpicture format i was able to use more than
>  4
> > colors (out of 16).
> 
> This sounds like you got the DXR3 to display your subtitles? I tried it a
> nd it 
> refused to display mine. I actualy have some code to convert vdr's cBitma
> p's 
> into SPU's (without the highlight).
It seems to me that the subpicture data will only be processed while a video
is running.
Currently i'm 'cat-ing' a mpeg file to the DXR3 video device and then send
the spu data to the spu device. The spu data will than be shown directly.
> 
> Also, it appears that there can only be one active highlight area, that 
> effectivly would limit us to 8 out of 16 colors. Also, one would most 
> certainly wish to use the highlight area for the cursor bar leaving you w
> ith 
> only 4 colors for the main menue, not enough colors for the colored key a
> rea 
> at the bottom of the menue area.
Yes, i thought that too first. But after reading
http://members.aol.com/mpucoder/DVD/spu.html i was able to generate 8 highlight regions with each having
it's own color (indices into color palette and transparency values). And a
button could additionally be defined via ioctl.

> 
> > This seems to be promising. The work is still going on and maybe our dr
> eam
> > comes true.
> 
> playback i have already working and transfer mode should be trivial.
> 
> > (Think how cheap a vdr-station could be by using a Nova and a DXR3,
> > especially when bought at ebay)
> 
> One more thing, a very low end system could eventualy run into problems, 
> as 
> the dxr3 apparently can only play PCM audio and the DVB MPEG2 audio strea
> m 
> therefore needs be decoded by the main CPU.
Yes, that's true. But nevertheless, such a system would be much cheaper than
a DVB-s/Nova system for timeshift.

> 
> Have fun
> 
>    Andreas
> 
> [....]
> 
> -- 
> Andreas Schultz <aschultz@cs.uni-magdeburg.de>
> Student of computer science
> 
> "In accordance with plans for Linux OS world domination
>       infiltration of governments is vital (:-))."
> 
> 
CU
Stefan.

-- 
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