[vlc-devel] [PATCH] [RFC] Phosphate/IVTC2x deinterlacer

[Juha Jeronen]

Hi all,

Attached is the framerate doubling IVTC filter prototype that I
mentioned in this week's dev update. I'm posting the code so that anyone
curious can have a look, and also try it out :)

The patch applies on top of the reworked Phosphor that I just posted.

The output is pretty good, although not as good (at least for anime) as
the latest traditional IVTC. The main weakness is that this filter is
based on interlace scores, so it has problems similar to those that the
first version of my traditional IVTC filter had.

The main differences to traditional IVTC are the framerate doubling, and
that this filter is completely cadence-free. Thus, this one doesn't need
any nontrivial framerate conversion or cadence tracking. But it does
need a kernel density estimator, and an optimal bandwidth estimation
algorithm for that, so I'm not exactly sure which filter wins on
simplicity :)

What do you guys think? Is a framerate-doubling IVTC a desirable mode
for the deinterlacer?

 -J

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