make watchdog timeout configurable per camera (fixes #95)

config/config.example.yml

@@ -99,6 +99,12 @@ cameras:
  ################
  take_frame: 1
 
+ ################
+ # The number of seconds frigate will allow a camera to go without sending a frame before
+ # assuming the ffmpeg process has a problem and restarting.
+ ################
+ # watchdog_timeout: 300
+
  ################
  # Camera level object config. This config is merged with the global config above.
  ################

frigate/video.py

@@ -65,7 +65,7 @@ def run(self):
  # wait a bit before checking
  time.sleep(10)
 
- if self.camera.frame_time.value != 0.0 and (datetime.datetime.now().timestamp() - self.camera.frame_time.value) > 300:
+ if self.camera.frame_time.value != 0.0 and (datetime.datetime.now().timestamp() - self.camera.frame_time.value) > self.camera.watchdog_timeout:
  print(self.camera.name + ": last frame is more than 5 minutes old, restarting camera capture...")
  self.camera.start_or_restart_capture()
  time.sleep(5)
@@ -151,6 +151,7 @@ def __init__(self, name, ffmpeg_config, global_objects_config, config, prepped_f
  camera_objects_config = config.get('objects', {})
 
  self.take_frame = self.config.get('take_frame', 1)
+ self.watchdog_timeout = self.config.get('watchdog_timeout', 300)
  self.regions = self.config['regions']
  self.frame_shape = get_frame_shape(self.ffmpeg_input)
  self.frame_size = self.frame_shape[0] * self.frame_shape[1] * self.frame_shape[2]