[FFmpeg-user] FFMpeg problem using fieldmatch and decimate filters to IVTC

Carl Eugen Hoyos cehoyos at ag.or.at
Wed May 7 13:32:07 CEST 2014

Steve Boyer <steveboyer85 <at> gmail.com> writes:

> Try this: https://www.dropbox.com/sh/v9jp4pdxzad4a7g/djUTH4OYcA

I tested the following command lines:

$ ffmpeg -i sample.vob -vf fieldmatch,decimate -vcodec mpeg4 
-qscale 2 -strict -2 out.mov

$ ffmpeg -i sample.vob -vf pullup -r 24000/1001 -vcodec mpeg4 
-qscale 2 -strict -2 out2.mov

Both output files seem to play fine here (and show no combing 
artefacts) but I am probably missing something, or not?

> I now believe that the problem I was having is entirely my 
> fault: The source video shifts between telecined with 3:2 
> pulldown at ~30 fps and interlaced video at ~30 fps.

sample.vob is not interlaced, it only contains telecine 
pattern afaict.

Please do not top-post here, it is considered rude, Carl Eugen

More information about the ffmpeg-user mailing list