detelecine

• ffmpeg
• frameinfo
• yadif

• MPlayer documentation
• https://en.wikipedia.org/wiki/Three-two_pull_down
• https://github.com/kfrn/ffmpeg-things/blob/master/inverse_telecine.md
• https://amiaopensource.github.io/ffmprovisr/#inverse-telecine
• https://ffmpeg.org/ffmpeg-filters.html#showinfo
• https://ffmpeg.org/ffmpeg-filters.html#fieldmatch
• https://ffmpeg.org/ffmpeg-filters.html#yadif-1
• https://ffmpeg.org/ffmpeg-filters.html#decimate-1

First of all, it's safe to assume that all DVDs are telecined. So then, it's a matter of which filters to use.

Here's some:

• fieldmatch
• idet
• decimate ?
• bwdif
• pullup
• yadif
• dejudder

Old notes:

Detelecine DVD:

ffmpeg -i dvd_copy.mpg -vf pullup,dejudder,fps=24000/1001 dvd_copy.mkv