[MPlayer-dev-eng] [PATCH] New mode for 'tinterlace' filter

[Scott W. Larson]

Walter Belhaven wrote:

>P.S.  This filter MIGHT also be useful -- in conjunction with
>'pullup' et. al. -- to recover the original "film" cadence in a
>720p/60Fps transmission of a "film", in which the broadcaster
>simply duplicates the original "film" Frames in a 2:3:2:3
>pattern.  The 'tinterlace=4' filter can make the 720p/60Fps look
>like hard telecined 720i/30Fps (i.e., 720i/60fps) which is what
>'pullup' expects to see.  I haven't tested this application yet,
>so I don't know if it works.  It probably doesn't work, unless it
>just magically happens to be at the correct phase of the 2:3:2:3
>pattern.
>  
>
Not only would it depend on luck to work, but sometimes networks (or 
perhaps local stations) don't stick to the 2:3:2:3 pattern all through a 
720p program. I've seen 2:2:3:2:3 mysteriously show up several times 
during programs and it breaks everything that was depending on the 2:3 
pattern. Once that happens, game over!