[MEncoder-users] Five inverse telecine filters to choose from -- four broken, one a little crazy

[xiphmont at xiph.org]

On 9/26/07, RC <cooleyr at gmail.com> wrote:
> On Wed, 26 Sep 2007 16:06:19 -0400
> xiphmont at xiph.org wrote:

> Uhh, no you didn't already say that anywhere, AFAICT.

Oops, then I apologize.  "Too much editing before sending".

>
> In addition to divtc, you can try -vf decimate=2:1000:1600:.001
>
> > 480p 30000/1001 is a valid DVD mode isn't it?
>
> Yes.  But you'll really never see 480p at 30fps anywhere.  If it was TV, it
> would be 30i.  If it's film, it's either 24p or telecined 30i.

OK, that makes perfect sense.

> > Could it originally have simply been a pullup rather than true
> > telecine?
>
> Pulldown and Telecine are generally used to refer to the same thing, and
> that involves independent fields for interlaced display.
>
> I'm not sure what you think "a pullup" would involve, but you can't fit
> 24fps film into 30fps and make it look decent without interlaced
> encoding and an interlaced display.

Heh.  This is a bitrate-reduced transcode of a Chinese pirate DVD shot
in a theater with a smuggled camera and otherwise produced to
hilariously low standards, all the way down to the machine-translated
subtitles and being horizontally squeezed to 4:3 so that everyone
looks like a telephone pole.  I was partly wondering if that's what
they *might* have done, not if ti made sense ;-)  Although I hadn't
thought it all the way through and you're right, that would make no
sense.

Monty