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remotion-multimedia

Extract duration and dimensions from audio and video files using Mediabunny.

57.9k|4.4k|Updated Jun 23, 2020
Search Tags:#Remotion#mediabunny#video metadata#media inspection#audio duration#video dimensions
One-click install
npx skills add https://github.com/remotion-dev/remotion --skill remotion-multimedia
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: remotion-multimedia
Source: https://github.com/remotion-dev/remotion/tree/main/packages/skills/skills/remotion-multimedia
Command: npx skills add https://github.com/remotion-dev/remotion --skill remotion-multimedia

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires mediabunny.

What problem does it solve?

Developers working with browser-based video and audio often need quick access to media metadata like duration and dimensions without writing boilerplate code for each file type.

Core Features & Use Cases

  • Audio Duration: Retrieve the playback length of MP3, WAV, and other audio formats in seconds.
  • Video Duration: Extract the total runtime of MP4 and other video files for timeline calculations.
  • Video Dimensions: Read the width and height of video files to match composition aspect ratios.
  • Use Case: When building a Remotion video, automatically detect the duration of imported footage and resize the composition to match the source media dimensions.

Quick Start

Use the remotion-multimedia skill to get the duration and dimensions of the video file at staticFile('footage.mp4').

Frequently Asked Questions about remotion-multimedia

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I get video duration in JavaScript with Mediabunny?▼

Create an Input instance with ALL_FORMATS and a UrlSource, then call input.computeDuration() to retrieve the playback length in seconds. The method works in browser, Node.js, and Bun environments.

How to extract video width and height in the browser?▼

Use input.getPrimaryVideoTrack() to access the video track, then read videoTrack.displayWidth and videoTrack.displayHeight. This returns the actual rendered dimensions of the video file.

Does Mediabunny work with local files in Node.js?▼

Yes, Mediabunny supports local files in Node.js and Bun by using FileSource instead of UrlSource. Pass a File object directly to the Input constructor for filesystem-based media processing.

Can I get audio duration with Mediabunny?▼

Mediabunny handles audio duration extraction through the same Input.computeDuration() method used for video. It supports MP3, WAV, and other formats registered in ALL_FORMATS.

Why does getPrimaryVideoTrack return undefined?▼

The method returns undefined when the input file contains no video stream, such as audio-only files or corrupted media. Check the file format and verify the source URL is accessible before calling the method.

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