[FFmpeg-devel] [PATCH] Change default behaviour of scale filter from 'progressive' to 'auto'

Michael Niedermayer michaelni at gmx.at
Sat Mar 31 07:52:13 CEST 2012

On Sat, Mar 31, 2012 at 12:40:02AM +0000, Carl Eugen Hoyos wrote:
> Reimar Döffinger <Reimar.Doeffinger <at> gmx.de> writes:
> > Which of course is generally related to any kind of 
> > "interlaced content" flag being really, really unreliable.
> Which is why I am slightly against this patch:
> Afaict, on DVB-T (SD), all material is signalled as being 
> interlaced, although all movies and series are progressive 
> (because 24Hz stretched and "interlaced" to 50Hz does not 
> produce visible fields).
> I suspect who works with interlaced material knows it 
> and can set the scaling correctly.

> Unrelated: Is a filter possible that detects by 
> inspection if frames are interlaced?


Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Old school: Use the lowest level language in which you can solve the problem
New school: Use the highest level language in which the latest supercomputer
            can solve the problem without the user falling asleep waiting.
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