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Add brightness-deadband property to intervalometer to prevent oscillation

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- Add new brightness-deadband property (default 10.0, range 0.0-50.0)
- Implements deadband/tolerance zone around target brightness
- When brightness is within ±deadband, no adjustments are made
- Prevents oscillation at fast update rates (10-100ms)
- Allows fast corrections when brightness significantly deviates
- Enables fast ramp rates without flicker/oscillation
- Updated README with detailed deadband documentation and usage examples
- Solves exposure fluctuation issue at high frame rates with fast updates
This commit is contained in:
yair
2025-11-21 13:46:19 +02:00
parent 93d8da45e6
commit 45fa4c07b4
4 changed files with 106 additions and 17 deletions
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1
gst/intervalometer/gstintervalometer.h
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@@ -75,6 +75,7 @@ struct _GstIntervalometer
gchar *camera_element_name; /* Name of upstream idsueyesrc element */
guint update_interval; /* Update interval in milliseconds */
gdouble brightness_smoothing; /* Brightness smoothing factor (0-1, 0=no smoothing) */
gdouble brightness_deadband; /* Deadband zone to prevent oscillation (0=disabled) */
/* Internal state */
GstElement *camera_src; /* Reference to upstream camera element */