[MEncoder-users] Re: field order mysteriously changing

Scott W. Larson scowl at pacifier.com
Tue Mar 14 06:46:38 CET 2006

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.

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