Maxim Kozlov wrote:
2015-04-17 19:33 GMT+03:00 Andy Furniss <adf.li...@gmail.com>:
I think 1080i25 is the correct way to describe "50i" - if what is
captured are weaved frames then there are only 25 of them per sec.
How to deinterlace such signal(convert true 1080i50 to 1080p25)
without degrading quality?
If it is "true 1080i50" then deinterlacing to 25p will half the temporal
resolution, 50p would retain it.
ffmpeg has several deinterlacers yadif is good. yadif=0 will give 25p
yadif=1 will give 50p.
Do you really need to deinterlace anyway would be another question - if
the content is actually progressive you don't need to.
If it is interlaced you could keep it as interlaced and let the
user/player/tv deinterlace it.
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