[mythtv-users] 1080i to 1080p Deinterlacing on Backend was Raspberry Pi now ships with 512MB RAM

[Scott Knight]

on 10/16/2012 11:00 PM Michael T. Dean carved the following into a 
picnic table:
> And, yes, a system that's transcoding everything to H.264 (versus
> storing it in its native recording format) does make for an extremely
> power hungry system.
>
You have just touched on something I have looked at a few times and 
never successfully figured out.  I already have a powerful backend (Xeon 
E3) with power to spare because it does other things like hosting VMs 
for building MythTV, cloud testing, etc.  It can commflag at 1200+ fps 
on 1080i content.  What I have noticed is that 1080i content looks 
pretty crappy no matter which deinterlacer I use on the frontends 
(mixture of ION, ION2, 9400, GT430 all running VDPAU).  720p content 
looks better and Blu-Ray looks stunning without even making the 
frontends break a sweat.

Is there a way to take my 1080i recordings and just deinterlace them on 
the backend?  I don't care about transcoding out the commercials, don't 
care what format they end up in, don't care about disk space, as long as 
I can use whatever deinterlace algorithm looks best to my eyes when it's 
played.  Maybe I don't understand the limitations of 1080i 
deinterlacing, but it seems that with a good enough transcode, the end 
result should be somewhere between 720p and Blu-Ray.

Thanks, Scott