[MEncoder-users] ivtc using mencoder

[RC]

On Wed, 28 Mar 2007 10:52:49 -0500
"Late Date" <latedate at gmail.com> wrote:

> mencoder 24p000.m2t -vf pullup -ofps 24000/1001 -oac copy -ovc lavc
> -lavcopts vcodec=mpeg2video:vbitrate=24000000:aspect=16/9 -o
> output.mpg

If you aren't using options like mbd=2 and trell, you're just wasting
bits for no reason.

>  I wonder if I have the "correct" bitrate setting.  The
> original bitrate was: 25000.0 kbps (3125.0 kbyte/s)

Are you sure that's the actual bitrate, and not just what's reported in
the header?

> Is there any way I can "bump up" that bitrate :-)

> I imagine I will have to dump it into a raw stream; if I do that, will
> I suffer any loss in picture quality?

If the IVTC filter does it's job perfectly on the video, then it should
be lossless.  But I'm willing to bet pullup (or any other MPlayer
filter) will be slightly less than perfect.