[vdr] [OT] development infrastructur for VGA2SCART patch set
vdr at toh.cx
Mon Mar 2 09:40:34 CET 2009
On Mon, Mar 02, 2009 at 10:03:12AM +0200, Pasi Kärkkäinen wrote:
> Hmm.. so you get 50 Hz interlaced output with this xorg.conf.
> Are you able to sync to each field separately?
of course not on nVidia graphics. They haven't offered their specs for
us to implement that.
But nevertheless this modeline gives smooth PAL playback because the
display (a SCART device) inherently plays 50Hz.
The major disadvantage of missing capability to have sync to field
is: you must deinterlace by software. Though you use an interlaced VGA
output. And software deinterlacers as we all know cause bad picture
Sync to separate fields currently only works with ATI Radeon and
Intel i9xx chipsets. That's what FrameRateControl (FRC) is based
upon in the patches mentioned above. This way you can cease from
deinterlacing in software giving you an artifact free picture.
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