Handle interlaced content better

[mirh]

I'm not exactly sure if you could somehow have the directshow filter a bit higher in the chain (so that at least shaders could apply to it)
Or if couldn't have the "this was actually interlaced" information be passed down the chain for madvr or whatnot to do the deinterlacing on the upscaled fields (would image quality be higher or lower this way?)

Still, I have this DVD, and currently the only way to somehow ameliorate the situation seems to be the algorithms built in the LAV video decoder (which all more or less suck, with the exception of the CUVID adaptive hw one).