[FFmpeg-user] FFMpeg problem using fieldmatch and decimate filters to IVTC
Carl Eugen Hoyos
cehoyos at ag.or.at
Wed May 7 13:37:59 CEST 2014
Steve Boyer <steveboyer85 <at> gmail.com> writes:
> ffmpeg -i 4.18 -map 0:1 -map 0:3
> -vf crop=704:480:10:0 -vf fieldmatch,decimate
I always wonder if this is supposed to work (it
apparently works, but I don't think you can protest
if it breaks in the future), please only use one
video filter chain per output file.
Just in case the following is not clear:
> -vf fieldmatch
The fieldmatch filter is not supposed to work on
its own, it can only function followed by the
decimate filter.
> -vf yadif
The yadif filter damages telecined streams (that
by definition can be restored) permanently, don't
use it unless you know that your source is
actually interlaced (and not telecined).
> -vf pullup,fps=24000/1001
This unfortunately does not work;-(
(This is documented iirc.)
> -vf pullup -r 24000/1001
As said, this works fine here for the sample you
uploaded.
Carl Eugen
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