[MPlayer-dev-eng] [PATCH] New filter vf_ivtc, smart dropping of every 5th frame

Benjamin Thyreau benji2 at melchizedek.dyndns.org
Fri Feb 21 21:29:43 CET 2003


On Sun, 16 Feb 2003 04:35:06 +0100
Johannes Guenther <johannes.guenther at s1999.tu-chemnitz.de> wrote:

> Hi,
> after using mencoder for awhile I came across movies with (real)
> 29.97 fps which were created from a 24 fps source by inserting a
> duplicate frame after every 4th frame. When (re)encoding these movies it
> would be clever to drop these duplicated frames to save bandwidth and to
> eliminate the jerky motion artefacts.
> 

Well, i know it's not very related, but i wrote this very simple filter
some time ago for my own usage. It temporally drops frame according to
a pattern. Eg. -vop drop=yynnnn will drop the 1st, 2nd, 7th, 8th, 13th...
frame. I used it to drop some "ghost-effect" frames
If someone find it useful (and non-redondant with something else ;), i can
make it as a patch
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