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intono/video/.agents/skills/remotion-best-practices/rules/get-video-dimensions.md
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lucianoandClaude Fable 5 21ad969b10 Initial commit: InTono — app KMP per l'apprendimento musicale
App Kotlin Multiplatform (Android/iOS/Desktop) con Compose Multiplatform:
controllo intonazione (YIN), pratica guidata, metronomo, ear training,
sfide, scansione spartiti via AI, spartiti bundled e pentagramma con
glifi tipografici, travature, battute e spaziatura proporzionale.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-22 10:06:59 +02:00

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Markdown

---
name: get-video-dimensions
description: Getting the width and height of a video file with Mediabunny
metadata:
tags: dimensions, width, height, resolution, size, video
---
# Getting video dimensions with Mediabunny
Mediabunny can extract the width and height of a video file. It works in browser, Node.js, and Bun environments.
## Getting video dimensions
```tsx
import { Input, ALL_FORMATS, UrlSource } from "mediabunny";
export const getVideoDimensions = async (src: string) => {
const input = new Input({
formats: ALL_FORMATS,
source: new UrlSource(src, {
getRetryDelay: () => null,
}),
});
const videoTrack = await input.getPrimaryVideoTrack();
if (!videoTrack) {
throw new Error("No video track found");
}
return {
width: videoTrack.displayWidth,
height: videoTrack.displayHeight,
};
};
```
## Usage
```tsx
const dimensions = await getVideoDimensions("https://remotion.media/video.mp4");
console.log(dimensions.width); // e.g. 1920
console.log(dimensions.height); // e.g. 1080
```
## Using with local files
For local files, use `FileSource` instead of `UrlSource`:
```tsx
import { Input, ALL_FORMATS, FileSource } from "mediabunny";
const input = new Input({
formats: ALL_FORMATS,
source: new FileSource(file), // File object from input or drag-drop
});
const videoTrack = await input.getPrimaryVideoTrack();
const width = videoTrack.displayWidth;
const height = videoTrack.displayHeight;
```
## Using with staticFile in Remotion
```tsx
import { staticFile } from "remotion";
const dimensions = await getVideoDimensions(staticFile("video.mp4"));
```