[MEncoder-users] field order not preserved when encoding to AVI ?

[Dieter]

> When encoding mpeg2 program streams  (tv dvb-t broadcast)  to AVI, it seems

Wouldn't dvb-t be a transport stream rather than a program stream?

> that  field order is either changed from the source, or not signaled
> correctly in the resulting AVI:
> - when playing back in VLC with BOB deinterlacing, the source plays fine but
> the encoded file is jumping exactly as a if the field were reversed.
> 
> Is there a solution to preserve the field order (exactly as it is in the
> source) all the way through an encoding to AVI ?

I also have problems with field order on mpeg2 transport streams.

Step one is we need a way to detect the field order in the source.
There is a field order flag, but is there a way to get mencoder/ffmpeg/...
to look at this flag?