[mythtv-users] New deinterlacer for perfect image quality when using an interlaced display, mode that matches the source

[Paul Gardiner]

Tom Dexter wrote:
> On Thu, Mar 26, 2009 at 8:26 AM, Paul Gardiner <lists at glidos.net> wrote:
>> I've just created a patch that provides a deinterlacer for perfect image
>> quality and motion smoothness when using an interlaced display mode that
>> exactly matches the video source. See Ticket #6391. The deinterlacer comes
>> up in the menus as "Interlaced x2". It is also known as field order.
>>
>>
> 
> I noticed something using this deinterlacer that I thought was an
> issue with the deinterlacer itself.  Others may notice it so I figured
> I'd point out what I discovered:
> 
> I noticed some flickering of translucent portions of the OSD (the
> playback menu for example) while this deinterlacer was in use (unless
> video is paused).  On 720p stations where it gets disabled this
> doesn't occur at all.

I've noticed that too with SD content here, both with the new
deinterlacer and with no deinterlacer. I think the handling of
the OSD is special cased for Bob so that might be why Bob avoids
it. Bob might be processing the OSD giving a sort of deflicker
effect.

Oh yeah, I had wondered whether there were cases where the OSD
gets painted twice (because of somehow getting stored in the
deinterlacer's buffers). For a translucent OSD that would
momentarily darken it.

Cheers,
	Paul.