[mythtv-users] deinterlacing and non-smooth playback at 1080i

[Mark Kendall]

On 5/22/07, Seth Daniel <mythtv.org at sethdaniel.org> wrote:
> Are you convinced that this sync issue isn't a driver issue?  I ask
> because I see the problem in mplayer and xine and not just mythtv.

I would expect mplayer and xine to have the same problems syncing to
the display.

There are a few reasons I think it's not a driver issue:-

 - your tv is accepting the 1080i output from your card. If there was
much wrong with the signal, it would probably reject it.
 - I have it working! Using both opengl and xvideo output.
 - I'm quite sure the sync issue I outlined in mythtv is correct.
 - it's too easy to dismiss it as a driver issue - there are a number
of things that need to be in place for the tv set to get it right e.g.
1080i source, 1080i display, no scaling, correct refresh rates etc,
etc. It doesn't take much to throw it out.

(OK - last reason is pretty lame)

FWIW, I'm using driver version 8776 on that frontend at the moment. I
think I had problems with interlaced modelines on the newer drivers.

>
>
> > Can you post a full log with deinterlacing off, aspect ration set to
> > Fill, opengl vsync on etc?
>
> 1) unpatched from svn trunk r13407
>    http://sethd.org/myth/fe.log.unpatched
> 2) patched from svn branch mythtv-vid r13487M
>    http://sethd.org/myth/fe.log.patched

OK - no scaling, which is good.

Can you think of any reason why the logs are consistently showing
24-26fps playback  and not 30fps?

Mark