Universal Ambient Light

vasmarfas

About this app

Universal screen grabber and ambient light controller for Android devices. Works seamlessly with Android TV, set-top boxes, phones, and tablets to create an immersive Ambilight experience.
Key Features:
Screen Grabber: Captures screen content in real-time to sync LEDs with your video.
Hyperion Support: Fully compatible with Hyperion (NG) servers over the network.
USB Control: Direct support for Adalight LED controllers via USB connection.
Android TV Ready: Optimized interface for TVs and remote controls.
Low Latency: High-performance color processing for smooth lighting effects.
No Root Required: Works on standard Android firmware (Android 5.0+).
Important Note:
Due to Android system protections (DRM), screen capture may not work within certain streaming apps (like Netflix). This is a system limitation, not an app bug.
The app is completely free, open-source, and contains no ads.

Optional Accessibility Service Usage:
To ensure compatibility with devices where the standard MediaProjection API is unavailable or malfunctioning, this app offers an optional Screen Capture mode using the AccessibilityService API.

Purpose: This service is used exclusively to analyze screen colors for the Ambilight effect.

User Control: This is an optional feature and is disabled by default. It can be manually enabled in the app settings only if needed.

Privacy: We do not collect, store, or monitor any personal data, typed text, or user interactions. The API is used solely for real-time visual processing.

Ratings and reviews

Works well with my TCL TV and Adalight, finally a free app that does this. The only issue I have currently is that it sometimes lights up by itself when the TV is off. The smoothing feature could also use some performance optimizations since it is a bit too stuttery.

Better than the old ScreenCap and the reborn one. Also the performance penalty is less.

the letterbox detection is awesome and the rgb per channel correction is amazing so easy to use .

What’s new

Fixed a crash on start: in release builds the app could not read its own default settings, so the frame rate came out as 0 and capture died immediately. The same cause silently reset LED counts (the "LED counts must be set" error), auto-reconnect and the Adalight baud rate.

Also fixed: granting USB permission with root, and a workaround for a firmware bug that only worked in debug builds.