Chapter 719: Fixing a MediaRecorder video

Core Idea

:::warning We are phasing out Remotion WebCodecs and are moving to Mediabunny!

Key Concepts

• Why does this happen?
• Re-encoding on the server
• Re-encoding using @remotion/webcodecs
• Re-muxing using @remotion/webcodecs
• Sample application
• See also

Code Examples

ffmpeg -i input.webm -c:v libx264 -c:a aac output.mp4

• What it demonstrates: Usage pattern for Fixing a MediaRecorder video from the official docs.

Key Takeaways

1. Understand why does this happen? when working with Fixing a MediaRecorder video.
2. Understand re-encoding on the server when working with Fixing a MediaRecorder video.
3. Understand re-encoding using @remotion/webcodecs when working with Fixing a MediaRecorder video.
4. Understand re-muxing using @remotion/webcodecs when working with Fixing a MediaRecorder video.
5. Understand sample application when working with Fixing a MediaRecorder video.

Connects To

• Buffer Writer: related page in the WebCodecs (@remotion/webcodecs) section.
• can Copy Audio Track: related page in the WebCodecs (@remotion/webcodecs) section.
• can Copy Video Track: related page in the WebCodecs (@remotion/webcodecs) section.