[arnova]

It would nice to have some additional controls in the configuration panel
available during video playback for:
- Auto postprocessing (on/off)
- V Deblocking on/off
- H Deblocking on/off
- Deringing on/off
And possibly others too.

[jmarshall]

It doesn't work (or doesn't work well) which is why it's not there.

It also only applies to mplayer and not the dvdplayer.

[Gamester17]

It doesn't work (or doesn't work well)

For more information on this please see: http://forum.xbmc.org/showthread.php?tid=14618