[FFmpeg-user] Questions about w3fdif deinterlacing

[Carl Eugen Hoyos]

Seth Parker <csparker247 <at> gmail.com> writes:

> Carl Eugen Hoyos <cehoyos <at> ag.or.at> writes:
> >The reason is that I was wrong
> >
> >The filter "works" exactly as you expected

[...]

> So idet DOES report frame info to w3fdif?

Yes (and to yadif and any other interested 
filter.)

> Of course, as you mentioned and

> as I've seen elsewhere, idet isn't the most 
> reliable, so it's not a great solution.

I don't think this is correct / I don't think you 
will always be able to visually decide if a frame 
is progressive / tff / bff. That is why I originally 
thought only two-pass deinterlacing makes sense, 
you showed that this is at least not always true.

Carl Eugen