Ffmpeg

FFmpeg in Remotion

ffmpeg and ffprobe do not need to be installed. They are available via the npx remotion ffmpeg and npx remotion ffprobe:

npx remotion ffmpeg -i input.mp4 output.mp3
npx remotion ffprobe input.mp4

Trimming videos

You have 2 options for trimming videos:

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.

import {Video} from '@remotion/media';

<Video src={staticFile('video.mp4')} trimBefore={5 * fps} trimAfter={10 * fps} />;

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).

# Re-encodes from the exact frame
npx remotion ffmpeg -ss 00:00:05 -i public/input.mp4 -to 00:00:10 -c:v libx264 -c:a aac public/output.mp4