[HELP] Converting 25p to 25i using Low Pass Filter in ffmpeg

[Selur]

you probably want something like:

ffmpeg -i "F:\TestClips&Co\files\test.avi" -vcodec prores_ks -profile:v 3 -vf tinterlace=4 -flags +ildct+ilme -vtag apch -f mov "E:\Output\test.mov"

where:

-vf tinterlace=4

converts the content to tff interlaced (see: https://www.ffmpeg.org/ffmpeg-all.html#tinterlace)
( '-vf interlace=scan=tff' should also work; see: https://www.ffmpeg.org/ffmpeg-all.html#interlace)
and

-flags +ildct+ilme

makes sure the output is flagged as interlaced (see: https://www.ffmpeg.org/ffmpeg-all.html#t...ec-Options)

Cu Selur