[FFmpeg-user] Extracting frames from 59.94 FPS video - only every other frame is different

Carl Eugen Hoyos ceffmpeg at gmail.com
Mon Dec 4 14:28:06 EET 2017

2017-12-04 11:02 GMT+01:00 Moritz Barsnick <barsnick at gmx.net>:

> I personally haven't had the greatest success with the
> "decimate" filter, but from its description, it can achieve
> what you require: Dropping "nearly identical" frames.

The releveant filter is called "mpdecimate":

The decimate filter is (part of) an inverse telecine filter
and has a different purpose (the important words in the
description being "at regular intervals" as opposed to
"whenever a frame is duplicated").

Carl Eugen

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