[mythtv-users] PCI, S-Video, VDPAU, SDTV, interlaced CRT: what card?

Johnny jarpublic at gmail.com
Wed Dec 16 14:24:52 UTC 2009

> The technicalities of reality aside, I think this concept is bogus.
> De-interlacing source material only to have it "re-interlaced" as it
> goes back to an SDTV is just bogus, wasteful, and likely a degradation
> of signal.

It is doing more than just standard de-interlacing (i.e. taking 60
fields per second and combing them into 30 frames). Advanced 2x is
doing temporal-spacial deinterlacing. So it is taking 60 half
resolution fields per second and doing the signal processing on them
to combine them into 60 full resolution frames per second. This is a
clever way of creating progressive video and maintaining all of the
temporal information that was in the interlaced video. Maybe it is
because my SDTV has component inputs, but VDPAU with Advanced 2x is
much much better than watching TV straight from the cable with no
mythtv involved at all, and far superior to any of the software
processing that myth has.

> AFAIU, all of the VDPAU capable cards are digital TV out only -- HDMI
> and/or DVI.  No more analog TV support.

Not true, most cards still have a standard TV-out connector that will
support s-video or component with a breakout connector.

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