Changes between Version 12 and Version 13 of How to speed up / slow down a video


Ignore:
Timestamp:
Oct 31, 2017, 7:11:21 AM (3 weeks ago)
Author:
pabs
Comment:

add information about motion interpolation/optical flow

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  • How to speed up / slow down a video

    v12 v13  
    2020}}} 
    2121 
    22 == Speeding up/slowing down audio == 
     22== Smooth == 
     23 
     24You can smooth out slow/fast video with the [http://ffmpeg.org/ffmpeg-filters.html#minterpolate minterpolate] video filter. This is also known as "motion interpolation" or "optical flow". 
     25 
     26{{{ 
     27ffmpeg -i input.mkv -filter "minterpolate='mi_mode=mci:mc_mode=aobmc:vsbmc=1:fps=120'" output.mkv 
     28}}} 
     29 
     30Other options include [https://github.com/slowmoVideo/slowmoVideo/ slowmoVideo] and [https://github.com/dthpham/butterflow Butterflow]. 
     31 
     32= Speeding up/slowing down audio = 
    2333 
    2434You can speed up or slow down audio with the [http://ffmpeg.org/ffmpeg-all.html#atempo atempo] audio filter. To double the speed of audio: