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For a one hour dash cam video in normal speed, is it possible to create a smooth timelapse video from it?

Most tutorials online I found about "timelapse + ffmpeg" are with static jpeg files combined into a timelapse video. These often result jiggle between frames, are the any specific parameters which would make the video looking very smooth & stable?

Should I just setpts=0.5*PTS for the trick? Any must-have or little-known tricks?

Update: this question is asking for specific programmable ffmpeg parameters.

est
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1 Answers1

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Yes, that's the way specified in the ffmpeg wiki: How to speed up / slow down a video.

ffmpeg -i input.mkv -filter:v "setpts=0.5*PTS" output.mkv

setpts also supports expressions if you feel creative and want to speed up/ slow down based on a curve rather than a constant value.

Eg: -filter:v "setpts=gauss(T/100)*PTS"

aergistal
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