<p>Using FFmpeg's command-line, this is totally possible. I do it to increase the speed of my videos by 10% (increasing both the audio AND video by 10%, without sounding like a chipmunk).</p>

<p>The command to increase your video's speed by 10% is:</p>

<pre><code>&lt;ffmpeg path&gt; -i &lt;origin video path&gt; -vf "setpts=(PTS-STARTPTS)/1.1" -crf 18 -af atempo=1.1 &lt;output video path&gt;
</code></pre>

<p>Here's the exact command line that I use:</p>

<pre><code>"C:\Program Files\ffmpeg-win64\bin\ffmpeg.exe" -i "G:\minecraft lets play.mp4" -vf "setpts=(PTS-STARTPTS)/1.1" -crf 18 -af atempo=1.1 "G:\minecraft lets play ffmpeg.mp4"
</code></pre>

<p>If you want to increase your video's speed by more, or less, then you just change the "1.1" at both lines to something else. "1.1" is 10%. "1.5" is 50%. "3" is 300%. "10" is 1000%.</p>

CC BY-SA 4.0
2022-10-25T01:47:10.083Z
great answer! as you mention audio, cheers!
manuelBetancurt
CC BY-SA 4.0
2020-05-21T14:48:58.223Z
2020-05-24T07:15:53.640Z
2020-05-24T07:15:53.640Z
LFPGaming
<p>You can use <a href="https://ffmpeg.org/download.html">ffmpeg</a>, a free command-line tool, to do this.</p>

<p>The basic command is</p>

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

<p>The <code>30</code> indicates the factor by which the video will be sped up.</p>

CC BY-SA 3.0
2016-05-21T09:32:25.743Z
Thanks a lot. This helps mutch. Is there propably also a way to revirse a video with ffmpeg ?
user1344545
CC BY-SA 3.0
2016-05-21T09:46:51.020Z
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
CC BY-SA 3.0
2016-08-10T14:57:23.223Z
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
CC BY-SA 3.0
2016-08-10T15:10:28.257Z
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
CC BY-SA 3.0
2016-08-10T15:20:26.337Z
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
CC BY-SA 3.0
2016-08-12T18:00:38.343Z
@Mulvya What's the relation between video speed up factor of 30 and audio tempo speed up of 1.875? Basically I just want to speed up a video 4 times, what should be the arguments for audio speed up in that case?
laggingreflex
CC BY-SA 3.0
2016-08-12T18:10:51.020Z
Audio is sped up using the atempo filter, which only takes values in the range of [0.5-2]. So to make a speed change outside that range, multiple atempo filters have to be daisychained. I have four filters with value of 2 and 1 of 1.875 since `2*2*2*2*1.875=30`. For four times, you need `atempo=2,atempo=2`
Gyan
CC BY-SA 4.0
2020-08-25T13:24:00.467Z
What is crf 18?
stephanmg
CC BY-SA 4.0
2020-08-25T15:27:32.290Z
Constant rate factor - in practice, a measure of the quality/size tradeoff used by the default video encoder (x264) for MP4 and MOVs. Lower is better but bigger. 18 is good; 23 is default.
Gyan
CC BY-SA 3.0
2016-05-21T07:47:14.220Z
2016-05-21T07:47:14.220Z
Gyan
<p>Is it possible to speed up a video using handbrake ?</p>

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

<p>Is it possible with handbrake or are there similar tools ?</p>

<video><ffmpeg><playback>
Is it possible to speed up a video using handbrake?
user1344545
# Is it possible to speed up a video using handbrake?

(Asked by: username_0 on 2016-05-21)

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 ?

**Tags:** video, ffmpeg, playback


---

## 2 answers

### Answer by username_3 on 2016-05-21. Score: 25 | Accepted answer

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.

> **Comments:**
> **username_0**: Thanks a lot. This helps mutch. Is there propably also a way to revirse a video with ffmpeg ?  
> **username_3**: 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"`  
> **username_4**: 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.  
> **username_3**: 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.  
> **username_3**: 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.  
> **username_5**: @Mulvya What's the relation between video speed up factor of 30 and audio tempo speed up of 1.875? Basically I just want to speed up a video 4 times, what should be the arguments for audio speed up in that case?  
> **username_3**: Audio is sped up using the atempo filter, which only takes values in the range of [0.5-2]. So to make a speed change outside that range, multiple atempo filters have to be daisychained. I have four filters with value of 2 and 1 of 1.875 since `2*2*2*2*1.875=30`. For four times, you need `atempo=2,atempo=2`  
> **username_6**: What is crf 18?  
> **username_3**: Constant rate factor - in practice, a measure of the quality/size tradeoff used by the default video encoder (x264) for MP4 and MOVs. Lower is better but bigger. 18 is good; 23 is default.  

---

### Answer by username_1 on 2020-05-21. Score: 7

Using FFmpeg's command-line, this is totally possible. I do it to increase the speed of my videos by 10% (increasing both the audio AND video by 10%, without sounding like a chipmunk).
The command to increase your video's speed by 10% is:
 -i  -vf "setpts=(PTS-STARTPTS)/1.1" -crf 18 -af atempo=1.1 

Here's the exact command line that I use:
"C:\Program Files\ffmpeg-win64\bin\ffmpeg.exe" -i "G:\minecraft lets play.mp4" -vf "setpts=(PTS-STARTPTS)/1.1" -crf 18 -af atempo=1.1 "G:\minecraft lets play ffmpeg.mp4"

If you want to increase your video's speed by more, or less, then you just change the "1.1" at both lines to something else. "1.1" is 10%. "1.5" is 50%. "3" is 300%. "10" is 1000%.

> **Comments:**
> **username_2**: great answer! as you mention audio, cheers!  

---

