[mythtv-users] Raspberry Pi deinterlacing

[Peter Bennett]

On 06/26/2017 03:45 PM, Joseph Fry wrote:
> I don't think the deinterlacer is confused at all... Advanced is a 
> temporal deinterlacer, when you pause on a frame your asking the 
> deinterlacer to do something it's not designed to do... deinterlace 
> without the context of change over time.
>
I meant confused in the sense of being given something to do that it 
cannot, like I would be confused if you put me in an airplane cockpit 
and told me to fly it, since I don't know how to do that.

> I'm sure there is a way to work around it (display the last rendered 
> frame before the pause?)... but feeding a temporal deinterlacer a 
> single interlaced frame over and over again is going to create some 
> weirdness, it really needs at least two frames to do any 
> deinterlacing... and ideally several frames before (and after?) to do 
> it's job properly.
>
> Perhaps pausing should switch to line doubling, or it should loop over 
> two frames?
I believe the advanced deinterlacer uses three frames at a time. So I 
agree there needs to be some better way, perhaps turn off the 
deinterlacer or change it to a different one.

Peter
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