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Implement scaling factor

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This commit is contained in:
Nicolas Mowen 2024-02-02 06:17:43 -07:00
parent 4b7977bf8d
commit 72e8551c62
2 changed files with 19 additions and 3 deletions
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10
frigate/config.py
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@ -528,6 +528,13 @@ class BirdseyeModeEnum(str, Enum):
return list(cls)[index]
class BirdseyeLayoutConfig(FrigateBaseModel):
scaling_factor: float = Field(
default=2.0, title="Birdseye Scaling Factor", gt=1.0, le=5.0
)
max_cameras: Optional[int] = Field(default=None, title="Max cameras")
class BirdseyeConfig(FrigateBaseModel):
enabled: bool = Field(default=True, title="Enable birdseye view.")
restream: bool = Field(default=False, title="Restream birdseye via RTSP.")
@ -542,6 +549,9 @@ class BirdseyeConfig(FrigateBaseModel):
mode: BirdseyeModeEnum = Field(
default=BirdseyeModeEnum.objects, title="Tracking mode."
)
layout: BirdseyeLayoutConfig = Field(
default_factory=BirdseyeLayoutConfig, title="Birdseye Layout Config"
)
# uses BaseModel because some global attributes are not available at the camera level

12
frigate/output.py
View File

@ -76,7 +76,13 @@ def get_canvas_shape(width: int, height: int) -> tuple[int, int]:
class Canvas:
def __init__(self, canvas_width: int, canvas_height: int) -> None:
def __init__(
self,
canvas_width: int,
canvas_height: int,
scaling_factor: int,
) -> None:
self.scaling_factor = scaling_factor
gcd = math.gcd(canvas_width, canvas_height)
self.aspect = get_standard_aspect_ratio(
(canvas_width / gcd), (canvas_height / gcd)
@ -90,7 +96,7 @@ class Canvas:
return (self.aspect[0] * coefficient, self.aspect[1] * coefficient)
def get_coefficient(self, camera_count: int) -> int:
return self.coefficient_cache.get(camera_count, 2)
return self.coefficient_cache.get(camera_count, self.scaling_factor)
def set_coefficient(self, camera_count: int, coefficient: int) -> None:
self.coefficient_cache[camera_count] = coefficient
@ -278,7 +284,7 @@ class BirdsEyeFrameManager:
self.frame_shape = (height, width)
self.yuv_shape = (height * 3 // 2, width)
self.frame = np.ndarray(self.yuv_shape, dtype=np.uint8)
self.canvas = Canvas(width, height)
self.canvas = Canvas(width, height, config.birdseye.layout.scaling_factor)
self.stop_event = stop_event
self.camera_metrics = camera_metrics