Various Fixes (#22376)

* Correctly send topic with role value

* Fix missing previews

* Catch other one

frigate/data_processing/post/review_descriptions.py

@@ -463,6 +463,13 @@ class ReviewDescriptionProcessor(PostProcessorApi):
         thumbs = []
         for idx, thumb_path in enumerate(frame_paths):
             thumb_data = cv2.imread(thumb_path)
+
+            if thumb_data is None:
+                logger.warning(
+                    "Could not read preview frame at %s, skipping", thumb_path
+                )
+                continue
+
             ret, jpg = cv2.imencode(
                 ".jpg", thumb_data, [int(cv2.IMWRITE_JPEG_QUALITY), 100]
             )

frigate/video.py

@@ -436,7 +436,7 @@ class CameraWatchdog(threading.Thread):
 
                         for role in p["roles"]:
                             self.requestor.send_data(
-                                f"{self.config.name}/status/{role}", "offline"
+                                f"{self.config.name}/status/{role.value}", "offline"
                             )
 
                         continue
@@ -451,7 +451,7 @@ class CameraWatchdog(threading.Thread):
 
                 for role in p["roles"]:
                     self.requestor.send_data(
-                        f"{self.config.name}/status/{role}", "offline"
+                        f"{self.config.name}/status/{role.value}", "offline"
                     )
 
                 p["logpipe"].dump()