7 Oct
2020
7 Oct
'20
11:19 p.m.
Hi Jake,
According to my notes...
To double the speed of a video:
$ ffmpeg -i input.mp4 -filter:v "setpts=0.5*PTS” output.mp4
Use -an to disable audio:
$ ffmpeg -i input.mp4 -filter:v "setpts=0.5*PTS" -an output.mp4
Use 0.333 instead of 0.5 for 3x speed. 0.05 for 20x.
cheers
-Carl
On Oct 7, 2020, at 9:23 PM, Jake <jake(a)spaz.org>
wrote:
does anyone know the right ffmpeg or mencoder commands to speed up an MKV video
file by 20X while reducing its file size accordingly? Bonus if it doesn't take
twice the lifetime of the universe to do it
thank you!
-jake
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