[vdr] Re: divx with horizontal 768 pixels

[Mike Pieper <mptei@t-online.de>]

On Saturday 15 June 2002 13:31, Tobias Kerner wrote:
> Martin Hoffmann wrote:
> > AFAIK DVBs card can only play a maximum of 720 pixels !
> > Try software scaling in mplayer instead !
>
> full PAL resolution is 768x576. why can't the dvb card replay those avis?
> tv stations often send movies in a resolution of 544x576 with an AR of
> 1.33; that makes 768x576.
> so the dvb card can scale a movie to 768 but can't use it as input?
Full PAL resolution is 720x576. But the TV-pixels are not square. If you want 
to have square pixels to show it on a computer screen (which has square 
pixels) you have to scale it to 768x576. Because AVI-files are primary 
intended for use on computers they use this resolution. If they would have a 
720x576 resolution you wouldn't have a good picture on a computer monitor.

In the opposite direction (output on TV-out of a DVB-card) you have to keep in 
mind that this card 'knows' about the non square TV-pixels. Therefore the 
maximum resolution is 720x576. You have to scale your video to 720 pixel 
(which would look slightly squeezed on computer screen) to get a correct 
output on the TV (in fact your TV will stretch it).

Mike