How to pipe interlaced content from mencoder to ffmpeg?

[Selur]

Since mencoder unlike ffmpeg does support DVD titles/chapters/angles, I want to:
a. open a dvd source with mencoder
b. pipe the content to ffmpeg, filter with ffmpeg

Problem is how can I properly pipe interlaced content.
Since ffplay is basically ffmpeg without the encoding I'm currently trying something like:

mencoder  -frames 100 -ovc raw -noskip -vf scale,format=i420 -forcedsubsonly -nosub -nosound -mc 0 -lavdopts threads=8 -really-quiet -field-dominance 0 -of rawvideo -o - -dvd-device "F:\TESTCL~1\discs\DVDs\TestDVD" dvd://1 |  ffplay  -video_size 720x576 -top 1 -f rawvideo -i -

Problem is that the output is broken. :/

-> Does anyone know how to do this?


Cu Selur

Ps.: I really do not want to deinterlace with mencoder.

[Selur]

Seems like this is caused by newer mplayer/mencoder builds. Old (2019) builds work fine.
So if someone knows a way to get this working again with newer mplayer/mencoder builds please let me know.