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Codeman/.agents/skills/remotion-best-practices/rules/ffmpeg.md
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2026-02-27 00:34:38 +01:00

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---
name: ffmpeg
description: Using FFmpeg and FFprobe in Remotion
metadata:
tags: ffmpeg, ffprobe, video, trimming
---
## FFmpeg in Remotion
`ffmpeg` and `ffprobe` do not need to be installed. They are available via the `bunx remotion ffmpeg` and `bunx remotion ffprobe`:
```bash
bunx remotion ffmpeg -i input.mp4 output.mp3
bunx remotion ffprobe input.mp4
```
### Trimming videos
You have 2 options for trimming videos:
1. Use the FFMpeg command line. You MUST re-encode the video to avoid frozen frames at the start of the video.
```bash
# Re-encodes from the exact frame
bunx remotion ffmpeg -ss 00:00:05 -i public/input.mp4 -to 00:00:10 -c:v libx264 -c:a aac public/output.mp4
```
2. Use the `trimBefore` and `trimAfter` props of the `<Video>` component. The benefit is that this is non-destructive and you can change the trim at any time.
```tsx
import { Video } from "@remotion/media";
<Video
src={staticFile("video.mp4")}
trimBefore={5 * fps}
trimAfter={10 * fps}
/>;
```