[MEncoder-users] settings to convert ATSC HDTV 1080i30 to 720p24

[RC]

On Wed, 30 May 2007 13:33:43 -0400
"Justin Randall" <jrrandall at gmail.com> wrote:

> I've seen a lot of  mencoder -vf pullup,softskip to get 1080i ~30fps
> down to a progressive 24fps... won't that crate a lot of jitter on
> motion scenes unless the original source really was filmed at 24fps?

Yes.  You have to determine whether the video is interlaced or telecine
before you start encoding.  

There's really no way around that.  The only possible way is a video
encoder which supports dynamically changing the framerate, which
Mencoder does not, neither does the AVI file format.  The IVTC filters
like pullup don't gracefully handle interlaced content either.