[FFmpeg-user] How can I use the fieldmatch filter to detelecine?

[Carl Eugen Hoyos]

L. Lee <llee040 <at> sbcglobal.net> writes:

> https://dl.dropboxusercontent.com/u/42718751/Blockyclip_mpg.zip

Could you test if the mpdecimate filter works better 
for this sample?
$ ffmpeg -i sample -vf mpdecimate -r 24000/1001 -qscale 2 out.avi
The fieldmatch filter does not help because your sample 
does not contain any interlaced frames, so there are no 
fields to match...
In the future, the decimate filter will hopefully 
support dropping three of five frames.

As an alternative, you could try to interlace your video 
to get the telecine pattern back (it appears your video 
was de-interlaced after telecine was used) and feed the 
result to fieldmatch. I am not saying that is the best 
option, but you could test:
-vf interlace,fieldmatch...

Carl Eugen