[mythtv-users] changing output to match source

[Andre]

On 24 Feb 2011, at 05:36, Jake Anderson wrote:

> I recently got a new plasma and it comes with "motion flow" (yes the 
> thing where it invents bits to up the frame rate).
> I rather like the effect however it doesn't play nice with a 
> de-interlaced signal, I run at 1080p using the vdpau advanced1x 
> deinterlacer. The interlacing artefacts seem to really muck with the 
> motion estimation.

You need a 2x de-interlacer for this to have any hope of working, a friend with a similar TV says it sort of works.


> 
> Watching the over the air signal through the TV seems to be fine so what 
> I'm after is for myth to change resolution/frame rate/interlacing to 
> match the input signal then using the TV for all the fancy 
> de-interlacing etc.

For the full interpolation to work the TV needs access to the compressed video stream, no hdmi feed contains all the information necessary. Many of these motion interpolators cannot even be turned on for a hdmi input, if you can get the TV to play recordings over uPnP/DLNA it may work.

Depends a lot on which TV with which interpolator, if the TV will allow you to turn on Motion Flow when an external source is selected then a 2x de-interlacer is worth a shot, there was some work on interlaced passthrough recently but I didn't get very good results when I tried it.

Make sure you have the correct framerate too 
http://www.mythtv.org/wiki/User_Manual:JudderFree

Andre