Label Studio’s Multi-View Video Plugin

Video annotation isn’t like labeling text or images. You’re not just tagging static information, you’re tracking motion, timing, and cause-and-effect. Whether it’s for gameplay review, content moderation, or security footage analysis, precision matters. Seeing things clearly and in sync across moments can make all the difference.

That’s why we built the Multi-Frame Video View plugin. It gives you a synchronized, frame-offset view of the same video, so you can confidently annotate transitions, actions, and edge cases with more context.

What the Plugin Actually Does

This plugin adds three synchronized video players inside the Label Studio interface:

• The main player (center bottom) plays the video normally.
• The left-hand player (top left) shows one frame before the current frame.
• The right-hand player (top right) shows one frame after the current frame.

Everything stays perfectly synced. When you scrub or pause the main player, the others update automatically. This gives annotators a deeper, time-aware perspective, without any manual toggling or tab switching.

It’s especially helpful when:

• You're pinpointing frame-accurate transitions, like a chord change in a guitar tutorial or a shift in facial expression.
• You're reviewing actions where the before and after context informs the label.
• You need to validate model-generated annotations against subtle visual changes.

Think of it like a zoomed-in view across time: one frame back, one frame forward, and the moment you’re labeling, side by side.

How to Try It Out

To get started, follow these steps:

1. Go to your plugin settings from the Plugins dropdown section in project settings
2. From the Insert Plugin dropdown menu, select Multi-Frame Video View
3. Use it as-is, or modify the plugin to fit your use case

Why It Matters

By adding a simple, synced view of surrounding frames, your team gets:

• Clearer insight into fast or subtle events
• Easier QA workflows, no switching tools or second-guessing
• More confident, accurate annotations

Explore more in the Plugin Gallery or get in touch if you want help building something custom.