Test clip for incorrect deinterlacing

[Boulder]

Does anyone happen to have a good steady test clip for checking if deinterlacing is being applied incorrectly? I have an Amlogic S928X based media player which seems to detect progressive AV1 encoded content as interlaced when hardware decoding is enabled, but I'd like to confirm this by comparing to software decoding.

[Z2697]

You mean to check if deinterlace is enabled when source is flagged as progressive? Perhaps you just need to re-encode an interlaced video without setting interlacing flag (does AV1 even support interlacing? MPEG already gave up (update: nope))

[Z2697]

A steady (static?) pattern might be ignored if the algorithm has some kind of motion detection (e.g. bwdif)

[wonkey_monkey]

A steady (static?) pattern might be ignored if the algorithm has some kind of motion detection (e.g. bwdif)

Not really following the conversation here, but even without motion detection, w3dif (which bwdif is based on/incorporates, I think) will "ignore" static pixel areas (because everything cancels out).

[LMP88959]

I would be interested in a good interlaced test clip as well. Maybe some pattern that oscillates in different directions would be good?