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Improve logic of birdseye (#8375)

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* Improve logic of birdseye

* Formatting
This commit is contained in:
Nicolas Mowen 2023-10-30 18:24:42 -06:00 committed by GitHub
parent 3d70d29672
commit 9d717b371c
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 19 additions and 5 deletions
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24
frigate/output.py
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@ -463,7 +463,7 @@ class BirdsEyeFrameManager:
def calculate_layout(self, cameras_to_add: list[str], coefficient) -> tuple[any]:
"""Calculate the optimal layout for 2+ cameras."""
def map_layout(row_height: int):
def map_layout(camera_layout: list[list[any]], row_height: int):
"""Map the calculated layout."""
candidate_layout = []
starting_x = 0
@ -492,7 +492,7 @@ class BirdsEyeFrameManager:
x + scaled_width > self.canvas.width
or y + scaled_height > self.canvas.height
):
return 0, 0, None
return x + scaled_width, y + scaled_height, None
final_row.append((cameras[0], (x, y, scaled_width, scaled_height)))
x += scaled_width
@ -564,10 +564,24 @@ class BirdsEyeFrameManager:
return None
row_height = int(self.canvas.height / coefficient)
total_width, total_height, standard_candidate_layout = map_layout(row_height)
total_width, total_height, standard_candidate_layout = map_layout(
camera_layout, row_height
)
if not standard_candidate_layout:
return None
# if standard layout didn't work
# try reducing row_height by the % overflow
scale_down_percent = max(
total_width / self.canvas.width,
total_height / self.canvas.height,
)
row_height = int(row_height / scale_down_percent)
total_width, total_height, standard_candidate_layout = map_layout(
camera_layout, row_height
)
if not standard_candidate_layout:
return None
# layout can't be optimized more
if total_width / self.canvas.width >= 0.99:
@ -578,7 +592,7 @@ class BirdsEyeFrameManager:
1 / (total_height / self.canvas.height),
)
row_height = int(row_height * scale_up_percent)
_, _, scaled_layout = map_layout(row_height)
_, _, scaled_layout = map_layout(camera_layout, row_height)
if scaled_layout:
return scaled_layout