Pro AV
Calibration Patterns
Calibration patterns replace the video output for projector alignment, color calibration, and display inspection.
On-player UI
- Open the debug panel.
- Go to Tools → Open calibration tools.
- Pick a pattern (grid, white/black field, grayscale steps, color bars, border).
- Adjust grid / gradient / border options as needed.
- Choose None (close) or Close pattern when finished (Esc also exits the effect).
You can drive the same patterns remotely with calibration_set, or use
Remote Debug to operate the calibration tools UI
from a browser.
API workflow
Use calibration_set to show a temporary pattern while aligning the projector,
checking color, or verifying viewport boundaries. Set the pattern back to none
to return to normal playback.
{ "cmd": "calibration_set", "params": { "pattern": "grid", "grid": { "rows": 9, "cols": 16, "color_index": 2 } } }
{ "cmd": "calibration_set", "params": { "pattern": "grayscale", "grayscale": { "steps": 8 } } }
{ "cmd": "calibration_set", "params": { "pattern": "none" } }For exact pattern parameters, use the Command Reference.
Pattern reference
| Pattern | Use |
|---|---|
grid | Geometric alignment. |
white / black | Dead pixel and leakage inspection. |
grayscale / colorbars | Contrast and color calibration. |
border | Overscan and viewport boundaries. |
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