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fallback to opencv to detect resolution and allow config to specify

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This commit is contained in:
Blake Blackshear 2020-01-18 20:24:44 -06:00
parent 6263912655
commit cd057370e1
2 changed files with 19 additions and 2 deletions
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6
config/config.example.yml
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@ -82,6 +82,12 @@ cameras:
# input_args: [] # input_args: []
# output_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. ## Optional mask. Must be the same dimensions as your video feed.
## The mask works by looking at the bottom center of the bounding box for the detected ## The mask works by looking at the bottom center of the bounding box for the detected

11
frigate/video.py
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@ -62,8 +62,16 @@ def get_frame_shape(source):
video_info = [s for s in info['streams'] if s['codec_type'] == 'video'][0] video_info = [s for s in info['streams'] if s['codec_type'] == 'video'][0]
if video_info['height'] != 0 and video_info['width'] != 0:
return (video_info['height'], video_info['width'], 3) 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): def get_ffmpeg_input(ffmpeg_input):
frigate_vars = {k: v for k, v in os.environ.items() if k.startswith('FRIGATE_')} frigate_vars = {k: v for k, v in os.environ.items() if k.startswith('FRIGATE_')}
return ffmpeg_input.format(**frigate_vars) return ffmpeg_input.format(**frigate_vars)
@ -170,6 +178,9 @@ class Camera:
'show_timestamp': self.config.get('snapshots', {}).get('show_timestamp', True) 'show_timestamp': self.config.get('snapshots', {}).get('show_timestamp', True)
} }
self.regions = self.config['regions'] self.regions = self.config['regions']
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_shape = get_frame_shape(self.ffmpeg_input)
self.frame_size = self.frame_shape[0] * self.frame_shape[1] * self.frame_shape[2] self.frame_size = self.frame_shape[0] * self.frame_shape[1] * self.frame_shape[2]
self.mqtt_client = mqtt_client self.mqtt_client = mqtt_client