[FFmpeg-user] Is FFV1 able to encode interlaced video?

[Andy Furniss]

Carl Eugen Hoyos wrote:

> Please understand that there is a difference between interlaced
> content and interlaced encoding. There is no interlaced encoding with
> FFv1 because it appears not to save any bytes in the output file and
> if you have interlaced content it will be still be interlaced.

But judging by one quick test I just did, you will loose the field order
information and the frames are marked as progressive.

Tested with mkv and nut with ffprobe -show_frames.

Input is y4m ffprobe shows -

interlaced_frame=1
top_field_first=1

both are 0 on resulting files.