[FFmpeg-user] Order for Filters
Carl Eugen Hoyos
cehoyos at ag.or.at
Thu Apr 14 15:21:41 CEST 2016
Nicholas Robbins <nickrobbins-at-yahoo.com <at> ffmpeg.org> writes:
> I have some MKV's from a DVD that are telecined and
> letterboxed. I would normally use
> "-vf fieldmatch,decimate"
> however, I want to add a crop filter. Which order would be
> better? Crop before fieldmatch or fieldmatch before crop?
While it generally doesn't matter and it would speed up the
process to first crop, I wanted to suggest to do the cropping
later so fieldmatch has more data to decide if a frame is
But if the input is letterboxed, you should definitely crop
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