0

I have used Jack Giffin's JavaScript code from here (3rd answer) to generate an ffmpeg command to speed up a video, with the audio, by 8x.

How do I speed up a video by 60X in ffmpeg?

However, my original video is 30fps. Is there a way to get an output video with 8x speed but at 60fps, so that I'm making use of some frames that would otherwise be discarded?

My current command line is:

ffmpeg -i input.mp4 -filter:v "setpts=PTS/8" -filter:a "atempo=2,atempo=2,atempo=2" output.mp4
pigeonburger
  • 2,508
Andrew Gillett
  • 1
  • 2

1 Answers1

0

Use the fps filter.

ffmpeg -i input.mp4 -filter:v "setpts=PTS/8,fps=60" -filter:a "atempo=2,atempo=2,atempo=2" output.mp4
Gyan
  • 38,955