[MPlayer-dev-eng] advanced deinterlacer

Corey Hickey bugfood-ml at fatooh.org
Sat Mar 13 06:16:11 CET 2004

Oswald Buddenhagen wrote:
> On Fri, Mar 12, 2004 at 02:52:18PM -0800, Corey Hickey wrote:
>>Oswald Buddenhagen wrote:
>>>i tried all available deinterlacers on a tv show scene where a guy is
>>>heavily gesticulating - _all_ failed, more or less horribly.
>>Just to be sure, the source video isn't telecined, is it?
> #define telecined
> the purely technical definition of the term does not apply; i was
> talking about a tv show, not a movie or an unspecified programme.

I was referring to any conversion process that would make some frames
interlaced (because they're a combination of fields from two adjacent
frames) and leave some frames intact.

Deinterlacing telecined video looks pretty bad, whereas properly inverse
telecining results in the original source.

I don't know if you're in NTSC land or PAL country, but I've seen
several NTSC TV shows around here that are telecined. I can't assume
that made-for-tv material will always be filmed at 60 fields per second.

>>Either way, it would be nice for us to be able to take a look at the
>>source clip. Can you post it on some publicly available server?
> nope, neither would i post a 400 mb raw video nor do i still have it.
> i don't consider recording a snippet from some talkshow a major problem
> for anybody (with a tv card), though. i'm sure somebody from the project
> can do it; the implementor will probably need access to lots of test
> samples anyway.

>From what you described, I figured that a few seconds would be enough to
show the trouble you're having and allow us to experiment a bit.

I don't have a TV card, and I've never encounterd interlaced video from
DVDs for which pp=lb gives quality I wouldn't accept.


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