[mythtv-users] Downscaling HD to SD in .21

[Don Porter]

Thanks Mike.

Myth is in full screen and not offset.  I'll check overscan.

I was able to work around the problem by transcoding my HD recordings
to 640x480.  Post-transcoding, they look like what I want.  I never
needed transcoding on my PVR-250.

This makes sense if the output of the hdhomerun unit is a 1080i stream
and the player is just cropping off the overflow.

Is there support for pipelined transcoding of live tv?  I think I have
the cpu to spare, and am willing to wait for buffering.  I am guessing
not, though.

Best,
Don

On Thu, May 22, 2008 at 10:38:49PM -0400, Michael T. Dean wrote:
> On 05/21/2008 12:21 AM, Don Porter wrote:
> > I recently bought a HD Homerun tuner.  When I try to watch HD tv on my
> > SD frontend, the playback is not properly scaled to the screen.  Just
> > under a half of the picture is off of the screen on the right hand
> > side (from my perspective).
> >
> > Any suggestions on what might be going wrong here?
> 
> Most likely broken video drivers.
> 
> >   Based on earlier
> > postings, I was under the impression that mythtv should automatically
> > downscale the picture for a lower resolution tv.
> >
> > I am running a stanard ubuntu install (8.04), on an x86_64 system with
> > myth .21.
> >
> > I can tweak the zoom/aspect ratio settings to get it tolerable, but
> > even then the outer 10% or so is cropped off.  Ideally, I'd like to
> > get the standard black bars on the top and bottom and see the whole
> > picture.
> 
> Make sure you run MythTV full screen and without any overscan or offset
> (in MythTV).
> 
> Mike
> 
> 
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