[MEncoder-users] filmdint cropping luma incorrectly?

[L Lee]

On 11/8/09 8:33 PM, "Jason Simpson" <xiojason at gmail.com> wrote:

> On Sun, Nov 8, 2009 at 6:21 PM, RC <cooleyr at gmail.com> wrote:
>> On Sun, 8 Nov 2009 17:53:02 -0800
>> Jason Simpson <xiojason at gmail.com> wrote:
>> 
>>> Sure, *before* filmdint fixes the chroma bleed issue, but...
>> 
>> Would have been good info to put in your previous e-mail...
> 
> In my first message with the links to the samples: "If I use a crop
> filter prior to filmdint, the chroma artifacts go away, but the MPEG-2
> field-order flags are destroyed and filmdint doesn't generate smooth
> video."
> 
>> Hmm, I thought crop was designed to pass-through the flags.  How about
>> softpulldown?
>> 
>> I would recomend using pullup (rather than filmdint) in the first place.
> 
> pullup doesn't look at the field flags and so doesn't work well with
> mixed frame rate input.
> 
> It's looking like 'softskip' *before* filmdint may be working for me.
> I'm re-encoding some longer videos now to see.
> 

I've been playing with a strategy for pullup for 1920X1080 that appears to
be both interlaced and telecined 60 fps h.264 that has really turned out
some excellent results, but not having seen your source, and not knowing
what you consider excellent, who knows. Anyway, most everything I do comes
from a single source but I've been using both tfields=0 and tinterlace=0
before filmdint=fast=0/sad_thres=2048 (to prevent bottom first errors) and
the softskip filter after that, plus the -noskip option.

Laine Lee