Real-time AV processor.

What it is

• A simple HDMI-in, HDMI-out box (fanless).
• HDCP compliant.
• Real-time AV processor — works with any HDMI source, single-frame end-to-end latency, no buffering, no re-encoding.

What it does

• Tone mapping — our own algorithm, with libplacebo as a selectable alternative.
• Aspect detection — detects black bars within the frame on any source, then applies shifting / scaling automatically.
• Scaling — anamorphic at any ratio, linear, and non-linear (NLS).
• Shifting — by pixel or percentage; any anchor (top/bottom × left/right) and combinations.
• Projector stacking — master + slave (two devices required), alignment plus image / tone-map division.
• Subtitle management — OCR captures subtitles burned into the letterbox bars and surfaces them over the visible image.
• 3D LUT — 2³ to 65³ files; multiple LUTs loaded per frame's ADL level, interpolated between them.
• Keystone correction — 8-point, barrel + pincushion, general alignment, sub-pixel precision.
• Chromatic aberration correction — up to 33×33 vertices, sub-pixel adjustments, auto-derived from your phone camera.
• Chroma upsampling.
• Home theater automation — auto-switch profiles per source, drive lights / lifts / masking / AV gear, IFTTT-style rules, webhooks, third-party device control over IP.

What it supports

• Input HDR up to 4K @ 60 fps, 10-bit 4:2:2 — 14.85 Gb/s.
• Input SDR up to 4K @ 60 fps, 8-bit 4:4:4 — 17.82 Gb/s.
• Output up to 4K @ 120 fps, 10-bit 4:2:2 over FRL (HDMI 2.1) — optional frame doubling for 60 fps sources, quintupling for 24 fps.
• Output BT.709 or BT.2020, configurable.

How it's controlled

• Web interface at luma.local — Wi-Fi or Ethernet.
• Mobile app — iOS and Android.
• API — open and documented.
• Automation rules — configured in the web interface.

On the roadmap

• Dolby Vision support (subject to license).
• Streaming from NAS or local storage.

The list will keep growing. That's the point.