[FFmpeg-devel] [PATCH] [PATCH] lavfi: add inverse telecine filter

Clément Bœsch u at pkh.me
Wed Mar 11 10:40:10 CET 2015


On Wed, Mar 11, 2015 at 07:12:16AM +0000, Carl Eugen Hoyos wrote:
> Timothy Gu <timothygu99 <at> gmail.com> writes:
> 
> > > This is an exact inverse of the telecine filter 
> > > unlike previously existing pullup and fieldmatch 
> > > ones.
> > 
> > What's the difference between the three seemingly 
> > similar filters?
> 
> The other two are similar (speed and license are 
> different): They try to detect the telecined 
> frames and reconstruct the original progressive 
> stream even if cuts were made. They sometimes miss 
> telecined frames.
> This filter does not detect anything, it applies a 
> fixed pattern to the input stream: It fails very 
> badly if the input was cut (and the pattern 
> changed),

>           it works perfectly for streams that 
> contain a constant pattern.

Did this happen even once with real material?

> 
> Carl Eugen
> 

-- 
Clément B.
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