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ensure some valid thumbnail is available

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This commit is contained in:
Blake Blackshear 2020-11-09 21:00:06 -06:00
parent 5cfd6d1edb
commit 5080b2d781
1 changed files with 8 additions and 1 deletions
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9
frigate/object_processing.py
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@ -78,7 +78,8 @@ class TrackedObject():
} }
self.frame = None self.frame = None
self._snapshot_jpg_time = 0 self._snapshot_jpg_time = 0
self._snapshot_jpg = None ret, jpg = cv2.imencode('.jpg', np.zeros((300,300,3), np.uint8))
self._snapshot_jpg = jpg.tobytes()
# start the score history # start the score history
self.score_history = [self.obj_data['score']] self.score_history = [self.obj_data['score']]
@ -164,6 +165,12 @@ class TrackedObject():
def snapshot_jpg(self): def snapshot_jpg(self):
if self._snapshot_jpg_time == self.thumbnail_data['frame_time']: if self._snapshot_jpg_time == self.thumbnail_data['frame_time']:
return self._snapshot_jpg return self._snapshot_jpg
if not self.thumbnail_data['frame_time'] in self.thumbnail_frames:
logger.error(f"Unable to create thumbnail for {self.obj_data['id']}")
logger.error(f"Looking for frame_time of {self.thumbnail_data['frame_time']}")
logger.error(f"Thumbnail frames: {','.join([str(k) for k in self.thumbnail_frames.keys()])}")
return self._snapshot_jpg
# TODO: crop first to avoid converting the entire frame? # TODO: crop first to avoid converting the entire frame?
snapshot_config = self.camera_config.snapshots snapshot_config = self.camera_config.snapshots