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

[James Buckley]

On 24/05/07, Phill Edwards <philledwards at gmail.com> wrote:
>
> > "1280x720"     74.25   1280 1720 1760 1984    720  725  730  750 +hsync
> +vsync
> >
> > Do I just fiddle around with the 74.25 number until I get a refresh
> > rate less than 20000? Is there any science to how I change it - up,
> > down, or just trial and error?
>
> OK - I've done some fiddling and found that seting the clock speed to
> 74.40 instead of 74.25 works. This makes the refresh rate 20000 and
> BOB is now reported to be working in mythfrontend.log.
>
> For the record, it seems that the refresh rate has to be less than
> _or_equal_to_ half the frame interval.
>
> Thanks for your help on this - I would never have got BOB working
> otherwise.
>
> Regards,
> Phill




I see:

<snip>
2007-05-24 21:45:00.454 Video timing method: RTC
<snip>

in your log. I seem to remember reading that RTC isn't the best timing
method, things can drift out of sync (like audio). Can anyone confirm this,
and what other methods are available?

Sorry for the threadjack, James
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