[mythtv-users] upsampling/upconverting dvd?

Steve Adeff adeffs at gmail.com
Wed Jan 4 16:47:06 UTC 2006


Mudit Wahal gave a great source, the avsforum, I'll elaborate some more in 
relation to playback on a MythTV machine...

On Wednesday 04 January 2006 09:46, matthew.garman at gmail.com wrote:
> Looking at standalone DVD players, many of them claim to be
> "upsampling" or "upconverting".  If I understand correctly, this
> means that they do some kind of magic to upconvert/upsample the DVD
> video to 720p or 1080i.
>
> If that definition is accurate, does the upsampling make a
> (positive) difference?
>
> And if it does make a difference, is there any way to achieve
> something similar under MythTV?

It does! and Myth can! 
Set MythTV up to send the signal (720p or 1080i) that your TV uses as its 
native HD mode. If it uses both, I'd suggest 1080i is the one to try and 
accomplish), then tell MythTV to output all video at that resolution and let 
the software do all scaling. This will scale TV to that output. If you plan 
on using Xine or mplayer for DVD's they too will do internal scaling if told 
to go fullscreen at this resolution.

> Basically, I've got a nice HD 720p/1080i TV on the way, and I'd like
> to consolidate AV equipment as much as possible (i.e., can I do away
> with the standalone DVD player?  MythTV already lets me do away with
> the DVR provided by the cable company.)

Xine has worked marvelously as a DVD player with menu support for many of us. 
Its internal scaling and overall video filtering is excellent and with a fast 
enough processor which you'll want for HDTV content, it can do excellent 
upconversion for DVD's in realtime without problem. I'll even go out and say 
Xine will do better than all standalone dvd players, especially the cheaper 
models ($2K and under).

-- 
Steve


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