PAL=TFF and NTSC=BFF ?

[bilu]

Message: 4
Subject: Re: [Ffmpeg-devel] trembling video
From: Erik Slagter <erik@*******.com>
To: ffmpeg-devel@lists.sourceforge.net
Organization:
Date: 03 Apr 2004 11:07:47 +0200
Reply-To: ffmpeg-devel@lists.sourceforge.net

> ffmpeg.exe -i taxi_audio.mp2 -i taxi.avi -y -f mpeg -vcodec mpeg2video -ac
> 2 -b 7963 -ilme -top 1 out\taxi_ffmpeg.mpg
>
> and the resulting video trembles a little up and down...

If the result is to be burned on DVD and to be watched on a
- "NTSC" tv set: use -top 0
- "PAL" tv set: use -top 1

The stream will be marked interlaced, top or bottom-first.
top=<-1 - 1>
-1 automatic
0 bottom field first
1 top field first

Can anyone confirm that PAL is TFF and NTSC is BFF?
I'll search for it, first time into this subject.

Bilu

[scharfis_brain]

analogue caps (with TV-cards) are (so far as i know) always TFF
the same analogue video capped through an DV-Camcorder or a DV-Digitizer are always BFF.
It doesn't matter which TV-Standard is used.

for encoding to MPEG-2 you have just to ensure, that the encodiong parameter fits to the fieldorder of the capped AVI.

[bilu]

Thanks, that's all I need to know :)

Bilu