Live video mixer
Prism
A beginner-friendly live media trigger and overlay tool built with Qt 6, FFmpeg, and OpenGL. Wire sources through a node graph, remove backgrounds live with AI, and crossfade decks — perfect for school events, small concerts, and sports.
- Node graph canvasWire Input → Process → Layer → A/B Select → Output nodes with zoom, pan, and a minimap — no scenes or playlists to manage.
- Live A/B deck mixingCrossfade between two decks with per-deck speed, AUTO/CUT, and transition modes — wipes, slides, dips, and 3D cube/flip.
- AI background removalKey out a webcam's background live with a MediaPipe selfie-segmentation model via ONNX Runtime, composited over the layers below.
