fallback to opencv to detect resolution and allow config to specify

config/config.example.yml

@@ -81,6 +81,12 @@ cameras:
  # hwaccel_args: []
  # input_args: []
  # output_args: []
+
+ ################
+ ## Optionally specify the resolution of the video feed. Frigate will try to auto detect if not specified
+ ################
+ # height: 1280
+ # width: 720
 
  ################
  ## Optional mask. Must be the same dimensions as your video feed.

frigate/video.py

@@ -62,7 +62,15 @@ def get_frame_shape(source):
 
  video_info = [s for s in info['streams'] if s['codec_type'] == 'video'][0]
 
- return (video_info['height'], video_info['width'], 3)
+ if video_info['height'] != 0 and video_info['width'] != 0:
+ return (video_info['height'], video_info['width'], 3)
+
+ # fallback to using opencv if ffprobe didnt succeed
+ video = cv2.VideoCapture(source)
+ ret, frame = video.read()
+ frame_shape = frame.shape
+ video.release()
+ return frame_shape
 
 def get_ffmpeg_input(ffmpeg_input):
  frigate_vars = {k: v for k, v in os.environ.items() if k.startswith('FRIGATE_')}
@@ -170,7 +178,10 @@ def __init__(self, name, ffmpeg_config, global_objects_config, config, prepped_f
  'show_timestamp': self.config.get('snapshots', {}).get('show_timestamp', True)
  }
  self.regions = self.config['regions']
- self.frame_shape = get_frame_shape(self.ffmpeg_input)
+ if 'width' in self.config and 'height' in self.config:
+ self.frame_shape = (self.config['height'], self.config['width'], 3)
+ else:
+ self.frame_shape = get_frame_shape(self.ffmpeg_input)
  self.frame_size = self.frame_shape[0] * self.frame_shape[1] * self.frame_shape[2]
  self.mqtt_client = mqtt_client
  self.mqtt_topic_prefix = '{}/{}'.format(mqtt_prefix, self.name)