[FFmpeg-user] simple bob -- How?

[Mark Filipak (ffmpeg)]

On 12/29/2020 04:28 AM, Paul B Mahol wrote:
> Try this:
> 
> "separatefields,select=eq(mod(n\,4)\,0)+eq(mod(n\,4)\,3),weave"

That plays at 15/1.001 FPS. The fields aren't right, either. That modulo doesn't make sense to me.

I'll play with it. But it seems to me that simple bob should be so simple that there's a filter 
already in existence but I just can't find it.

Ah, well.