[mythtv-users] HD Playback Quality

[jedi]

On Fri, Jul 11, 2008 at 07:51:04AM -0700, Brad DerManouelian wrote:
> On Jul 11, 2008, at 7:23 AM, moodyjunk at frontiernet.net wrote:
> 
> > While good, playback of HD broadcast recordings aren't quite as good
> > as live broadcast directly to the TV (no Myth), specifically with
> > motion blur.  Since my understanding is the recoding process is simply
> > storing the data packet to the hard drive, I figure the problem must
> > be in playback.  I found
> > http://www.mythtv.org/wiki/index.php/Playback_profiles which looks
> > promising, and I selected "High Quality" but it actually seemed to
> > make word scrolling (at the bottom of the screen) worse, not better.
> > My default option was Slim.
> >
> > I'd like the highest possible playback quality and have lots of
> > processor resource to do it (3.0 GHz dual processors with 2G memory).
> > I'm hoping someone can save me some time in playing with the many
> > options.  Any suggestions on which parms I should use for the best
> > quality playback?  In case it matters my TV is Samsung LN46A650A1F.
> > Thanks.

   I suppose this explains why my appletv frontend does a better than
expected job displaying high bitrate 1080i content. My 720p TV is being
driven to 1080(interlaced obviously) by the nvidia Xorg driver by default.

   ...now I have something to play around with on the 1080p set.

> 
> Sounds like you are playing back interlaced content on a progressive  
> display, so you'll need to use one of the many deinterlacers to get  
> rid of that motion blur. (Your TV does this for you when it's in the  
> right mode which is why you don't see it playing directly to the TV.)   
> Since it's an objective thing, the best idea is to play with each  
> deinterlacer and see which provides the best picture without pegging  
> your CPU.