Split config.py into multiple files (#14038)

* Replace logging.warn with logging.warning

* Install config global state early

* Split config.py into more manageable pieces

frigate/config/camera/birdseye.py

@@ -0,0 +1,67 @@
+from enum import Enum
+from typing import Optional
+
+from pydantic import BaseModel, Field
+
+from ..base import FrigateBaseModel
+
+__all__ = [
+    "BirdseyeCameraConfig",
+    "BirdseyeConfig",
+    "BirdseyeLayoutConfig",
+    "BirdseyeModeEnum",
+]
+
+
+class BirdseyeModeEnum(str, Enum):
+    objects = "objects"
+    motion = "motion"
+    continuous = "continuous"
+
+    @classmethod
+    def get_index(cls, type):
+        return list(cls).index(type)
+
+    @classmethod
+    def get(cls, index):
+        return list(cls)[index]
+
+
+class BirdseyeLayoutConfig(FrigateBaseModel):
+    scaling_factor: float = Field(
+        default=2.0, title="Birdseye Scaling Factor", ge=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.")
+    mode: BirdseyeModeEnum = Field(
+        default=BirdseyeModeEnum.objects, title="Tracking mode."
+    )
+
+    restream: bool = Field(default=False, title="Restream birdseye via RTSP.")
+    width: int = Field(default=1280, title="Birdseye width.")
+    height: int = Field(default=720, title="Birdseye height.")
+    quality: int = Field(
+        default=8,
+        title="Encoding quality.",
+        ge=1,
+        le=31,
+    )
+    inactivity_threshold: int = Field(
+        default=30, title="Birdseye Inactivity Threshold", gt=0
+    )
+    layout: BirdseyeLayoutConfig = Field(
+        default_factory=BirdseyeLayoutConfig, title="Birdseye Layout Config"
+    )
+
+
+# uses BaseModel because some global attributes are not available at the camera level
+class BirdseyeCameraConfig(BaseModel):
+    enabled: bool = Field(default=True, title="Enable birdseye view for camera.")
+    mode: BirdseyeModeEnum = Field(
+        default=BirdseyeModeEnum.objects, title="Tracking mode for camera."
+    )
+
+    order: int = Field(default=0, title="Position of the camera in the birdseye view.")