fixed memory leak related to video files

Classifier/havoxClassifier.py

@@ -4,6 +4,8 @@ from io import BytesIO
 from concurrent.futures import ThreadPoolExecutor
 from transformers import ViTForImageClassification, ViTImageProcessor
 
+from Database.x_classes import HavoxLabel
+
 class VoxClassifier():
     def __init__(self):
         self.feature_extractor = ViTImageProcessor.from_pretrained('Classifier/HAV0X/')
@@ -21,9 +23,13 @@ class VoxClassifier():
                     return self.model.config.id2label[predicted_class_idx]
         except Exception as ex:
             print(ex)
-            return "Rejected"
+            return HavoxLabel.Rejected
 
     async def classify_async(self, image_bytes):
+        if not image_bytes:
+            #mainly for video files
+            print("image bytes was null")
+            return HavoxLabel.Rejected
         with ThreadPoolExecutor() as executor:
             future = executor.submit(self.classify, image_bytes)