Allow cameras to be disabled in config (#4162)

* add option enabled for each camera in config

* Simplified If-block and removed wrong Optional

* Update Docs enabling/disabling camera in config

* correct format for option

* Disabling Camera for processes, no config changes

* Describe effects of disabled cam in documentation

* change if-logic, obsolete copy, info disabled cam

* changed color to white, added top padding in disabled camera info

* changed indentation

docs/docs/configuration/cameras.md

@@ -7,6 +7,8 @@ title: Cameras
 
 Several inputs can be configured for each camera and the role of each input can be mixed and matched based on your needs. This allows you to use a lower resolution stream for object detection, but create recordings from a higher resolution stream, or vice versa.
 
+A camera is enabled by default but can be temporarily disabled by using `enabled: False`. Existing events and recordings can still be accessed. Live streams, recording and detecting are not working. Camera specific configurations will be used.
+
 Each role can only be assigned to one input per camera. The options for roles are as follows:
 
 | Role       | Description                                                                                          |
@@ -21,6 +23,7 @@ mqtt:
   host: mqtt.server.com
 cameras:
   back:
+    enabled: True
     ffmpeg:
       inputs:
         - path: rtsp://viewer:{FRIGATE_RTSP_PASSWORD}@10.0.10.10:554/cam/realmonitor?channel=1&subtype=2

docs/docs/configuration/index.md

@@ -387,6 +387,10 @@ timestamp_style:
 cameras:
   # Required: name of the camera
   back:
+    # Optional: Enable/Disable the camera (default: shown below).
+    # If disabled: config is used but no live stream and no capture etc.
+    # Events/Recordings are still viewable.
+    enabled: True
     # Required: ffmpeg settings for the camera
     ffmpeg:
       # Required: A list of input streams for the camera. See documentation for more information.

frigate/app.py

@@ -255,6 +255,10 @@ class FrigateApp:
     def start_camera_processors(self) -> None:
         model_shape = (self.config.model.height, self.config.model.width)
         for name, config in self.config.cameras.items():
+            if not self.config.cameras[name].enabled:
+                logger.info(f"Camera processor not started for disabled camera {name}")
+                continue
+
             camera_process = mp.Process(
                 target=track_camera,
                 name=f"camera_processor:{name}",
@@ -276,6 +280,10 @@ class FrigateApp:
 
     def start_camera_capture_processes(self) -> None:
         for name, config in self.config.cameras.items():
+            if not self.config.cameras[name].enabled:
+                logger.info(f"Capture process not started for disabled camera {name}")
+                continue
+
             capture_process = mp.Process(
                 target=capture_camera,
                 name=f"camera_capture:{name}",

frigate/config.py

@@ -541,6 +541,7 @@ class CameraUiConfig(FrigateBaseModel):
 
 class CameraConfig(FrigateBaseModel):
     name: Optional[str] = Field(title="Camera name.", regex="^[a-zA-Z0-9_-]+$")
+    enabled: bool = Field(default=True, title="Enable camera.")
     ffmpeg: CameraFfmpegConfig = Field(title="FFmpeg configuration for the camera.")
     best_image_timeout: int = Field(
         default=60,
@@ -819,7 +820,7 @@ class FrigateConfig(FrigateBaseModel):
         if config.mqtt.password:
             config.mqtt.password = config.mqtt.password.format(**FRIGATE_ENV_VARS)
 
-        # Global config to propegate down to camera level
+        # Global config to propagate down to camera level
         global_config = config.dict(
             include={
                 "birdseye": ...,
@@ -940,10 +941,9 @@ class FrigateConfig(FrigateBaseModel):
                 logger.warning(
                     f"{name}: Recording retention is configured for {camera_config.record.retain.mode} and event retention is configured for {camera_config.record.events.retain.mode}. The more restrictive retention policy will be applied."
                 )
-            # generage the ffmpeg commands
+            # generate the ffmpeg commands
             camera_config.create_ffmpeg_cmds()
             config.cameras[name] = camera_config
-
         return config
 
     @validator("cameras")

web/src/components/CameraImage.jsx

@@ -14,6 +14,7 @@ export default function CameraImage({ camera, onload, searchParams = '', stretch
   const [{ width: availableWidth }] = useResizeObserver(containerRef);
 
   const { name } = config ? config.cameras[camera] : '';
+  const enabled = config ? config.cameras[camera].enabled : 'True';
   const { width, height } = config ? config.cameras[camera].detect : { width: 1, height: 1 };
   const aspectRatio = width / height;
 
@@ -45,12 +46,18 @@ export default function CameraImage({ camera, onload, searchParams = '', stretch
 
   return (
     <div className="relative w-full" ref={containerRef}>
+      {
+        (enabled) ?
           <canvas data-testid="cameraimage-canvas" height={scaledHeight} ref={canvasRef} width={scaledWidth} />
-      {!hasLoaded ? (
+          : <div class="text-center pt-6">Camera is disabled in config, no stream or snapshot available!</div>
+      }
+      {
+        (!hasLoaded && enabled) ? (
           <div className="absolute inset-0 flex justify-center" style={`height: ${scaledHeight}px`}>
             <ActivityIndicator />
           </div>
-      ) : null}
+        ) : null
-    </div>
+      }
+    </div >
   );
 }