1---
2name: ffmpeg
3description: Using FFmpeg and FFprobe in Remotion
4metadata:
5  tags: ffmpeg, ffprobe, video, trimming
6---
7 
8## FFmpeg in Remotion
9 
10`ffmpeg` and `ffprobe` do not need to be installed. They are available via the `npx remotion ffmpeg` and `npx remotion ffprobe`:
11 
12```bash
13npx remotion ffmpeg -i input.mp4 output.mp3
14npx remotion ffprobe input.mp4
15```
16 
17### Trimming videos
18 
19You have 2 options for trimming videos:
20 
211. **Preferred**: Use the `trimBefore` and `trimAfter` props of the `<Video>` component. This is non-destructive, requires no re-encoding, and you can change the trim at any time.
22 
23```tsx
24import {Video} from '@remotion/media';
25 
26<Video src={staticFile('video.mp4')} trimBefore={5 * fps} trimAfter={10 * fps} />;
27```
28 
292. Use the FFmpeg command line. You MUST re-encode the video to avoid frozen frames at the start of the video. Only use this if you need a standalone trimmed file (e.g. for upload or external use).
30 
31```bash
32# Re-encodes from the exact frame
33npx remotion ffmpeg -ss 00:00:05 -i public/input.mp4 -to 00:00:10 -c:v libx264 -c:a aac public/output.mp4
34```
35