[FFmpeg-user] How to deinterlace a 25fps (50i tff content) video with FFplay and output it as 50p?

[Christoph Gerstbauer]

> $ ffplay test.avi -vf yadif=1
>
> The unavoidable question is: You apparently knew that
> yadif takes options and passed "0:0", where did you
> look that up?

At the FFplay documentation:
https://ffmpeg.org/ffplay-all.html#yadif-1