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improve autotracking relative zooming time calculation

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This commit is contained in:
Josh Hawkins 2025-05-14 12:38:24 -05:00
parent 82abf8a719
commit abb1675285
1 changed files with 15 additions and 2 deletions
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17
frigate/ptz/autotrack.py
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@ -1171,7 +1171,20 @@ class PtzAutoTracker:
zoom_predicted_movement_time = 0
if np.any(average_velocity):
zoom_predicted_movement_time = abs(zoom) * self.zoom_time[camera]
# Calculate the intended change in zoom level
zoom_change = (1 - abs(zoom)) * (1 if zoom >= 0 else -1)
# Calculate new zoom level and clamp to [0, 1]
new_zoom = max(
0, min(1, self.ptz_metrics[camera].zoom_level.value + zoom_change)
)
# Calculate the actual zoom distance
zoom_distance = abs(
new_zoom - self.ptz_metrics[camera].zoom_level.value
)
zoom_predicted_movement_time = zoom_distance * self.zoom_time[camera]
zoom_predicted_box = (
predicted_box
@ -1188,7 +1201,7 @@ class PtzAutoTracker:
tilt = (0.5 - (centroid_y / camera_height)) * 2
logger.debug(
f"{camera}: Zoom amount: {zoom}, zoom predicted time: {zoom_predicted_movement_time}, zoom predicted box: {tuple(zoom_predicted_box)}"
f"{camera}: Zoom amount: {zoom}, zoom distance: {zoom_distance}, zoom predicted time: {zoom_predicted_movement_time}, zoom predicted box: {tuple(zoom_predicted_box)}"
)
self._enqueue_move(camera, obj.obj_data["frame_time"], pan, tilt, zoom)