35 lines
1.1 KiB
Markdown
35 lines
1.1 KiB
Markdown
---
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name: ffmpeg
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description: Using FFmpeg and FFprobe in Remotion
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metadata:
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tags: ffmpeg, ffprobe, video, trimming
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---
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## FFmpeg in Remotion
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`ffmpeg` and `ffprobe` do not need to be installed. They are available via the `npx remotion ffmpeg` and `npx remotion ffprobe`:
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```bash
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npx remotion ffmpeg -i input.mp4 output.mp3
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npx remotion ffprobe input.mp4
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```
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### Trimming videos
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You have 2 options for trimming videos:
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1. **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.
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```tsx
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import {Video} from '@remotion/media';
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<Video src={staticFile('video.mp4')} trimBefore={5 * fps} trimAfter={10 * fps} />;
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```
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2. 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).
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```bash
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# Re-encodes from the exact frame
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npx remotion ffmpeg -ss 00:00:05 -i public/input.mp4 -to 00:00:10 -c:v libx264 -c:a aac public/output.mp4
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```
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