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fix potential divide by zero in misconfigured speed zones

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Josh Hawkins 2025-07-01 07:40:24 -05:00
parent 9af0a4a9ea
commit ba419f907e
1 changed files with 5 additions and 0 deletions
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5
frigate/util/velocity.py
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@ -59,6 +59,11 @@ def create_ground_plane(zone_points, distances):
:param y: Y-coordinate in the image :param y: Y-coordinate in the image
:return: Real-world distance per pixel at the given (x, y) coordinate :return: Real-world distance per pixel at the given (x, y) coordinate
""" """
# Return 0 if divide by zero would occur
if (B[0] - A[0]) == 0 or (D[1] - A[1]) == 0:
return 0
# Normalize x and y within the zone # Normalize x and y within the zone
x_norm = (x - A[0]) / (B[0] - A[0]) x_norm = (x - A[0]) / (B[0] - A[0])
y_norm = (y - A[1]) / (D[1] - A[1]) y_norm = (y - A[1]) / (D[1] - A[1])