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Is it possible to speed up a video using handbrake ?

I am looking for a software like handbrake to convert videos for faster playback. It should speed up the video up to 30x.

Is it possible with handbrake or are there similar tools ?

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You can use ffmpeg, a free command-line tool, to do this.

The basic command is

ffmpeg -i input.mov -vf "setpts=(PTS-STARTPTS)/30" -crf 18 output.mov

The 30 indicates the factor by which the video will be sped up.

  • Thanks a lot. This helps mutch. Is there propably also a way to revirse a video with ffmpeg ? – user1344545 May 21 '16 at 9:32
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    Sure. but it loads the whole file into memory, so I suggest applying it after speed change, like this: -vf "setpts=(PTS-STARTPTS)/30,reverse" – Gyan May 21 '16 at 9:46
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    Note, this seems to add a bunch of empty blackness at the end. Or, rather, it condenses the video but keeps the original length and just fills it with solid black. – Joshua Pinter Aug 10 '16 at 14:57
  • If you have an audio track in the input which isn't correspondingly sped up, yes, but not otherwise. Add -an to disable or -af atempo=2,atempo=2,atempo=2,atempo=2,atempo=1.875 to speed up the audio as well. – Gyan Aug 10 '16 at 15:10
  • If you do keep audio (without speed up), whether it's black depends on the player's behaviour. In Potplayer, the last frame is frozen. – Gyan Aug 10 '16 at 15:20

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