[MEncoder-users] Re: field order mysteriously changing

[Scott W. Larson]

Dieter wrote

>Do you think the broadcaster was randomly changing the field order?
>Or Tivo?  Perhaps different cameras had different field order?
>Or something else ???
>  
>
Broadcasters do change the field order in 1080i. I have no idea why but 
I discovered it the hard way. If you watch the top_field_first flag 
during a 1080i broadcast, you'll see it switch back and forth. Naturally 
displaying the fields in the wrong order will make motion look awful.