diff --git a/annotation.pxd b/annotation.pxd
index c841d10..8bfc0bc 100644
--- a/annotation.pxd
+++ b/annotation.pxd
@@ -8,7 +8,7 @@ cdef class Detection:
 cdef class Annotation:
     cdef public str name
     cdef public str original_media_name
-    cdef public long time
+    cdef long time
     cdef public list[Detection] detections
     cdef public bytes image
 
diff --git a/classes.json b/classes.json
index 663844f..4ba2d0a 100644
--- a/classes.json
+++ b/classes.json
@@ -18,4 +18,4 @@
       { "Id": 16, "Name": "Caponier",           "ShortName": "Капонір",     "Color": "#ffa500", "MaxSizeM": 10 },
       { "Id": 17, "Name": "Ammo",               "ShortName": "БК",          "Color": "#33658a", "MaxSizeM": 2 },
       { "Id": 18, "Name": "Protect.Struct",     "ShortName": "Зуби.драк",   "Color": "#969647", "MaxSizeM": 2 }
-]
+]
\ No newline at end of file
diff --git a/constants_inf.pxd b/constants_inf.pxd
index 59fb7a0..f5573eb 100644
--- a/constants_inf.pxd
+++ b/constants_inf.pxd
@@ -21,7 +21,7 @@ cdef log(str log_message)
 cdef logerror(str error)
 cdef format_time(int ms)
 
-cdef dict annotations_dict
+cdef dict[int, AnnotationClass] annotations_dict
 
 cdef class AnnotationClass:
     cdef public int id
diff --git a/constants_inf.pyx b/constants_inf.pyx
index a94e6ef..4b515bf 100644
--- a/constants_inf.pyx
+++ b/constants_inf.pyx
@@ -70,9 +70,6 @@ logger.add(
     colorize=True
 )
 
-def get_annotations_dict():
-    return annotations_dict
-
 cdef log(str log_message):
     logger.info(log_message)
 
diff --git a/inference.pyx b/inference.pyx
index 81acee1..f6153f6 100644
--- a/inference.pyx
+++ b/inference.pyx
@@ -264,9 +264,7 @@ cdef class Inference:
         if frame is None:
             raise ValueError("Invalid image data")
 
-        cdef int bs = self.engine.get_batch_size()
-        frames = [frame] * bs
-        input_blob = self.preprocess(frames)
+        input_blob = self.preprocess([frame])
         outputs = self.engine.run(input_blob)
         list_detections = self.postprocess(outputs, ai_config)
         if list_detections:
diff --git a/main.py b/main.py
index c3f0f26..5852c2f 100644
--- a/main.py
+++ b/main.py
@@ -109,10 +109,9 @@ class AIConfigDto(BaseModel):
 
 def detection_to_dto(det) -> DetectionDto:
     import constants_inf
-    ann = constants_inf.get_annotations_dict()
     label = ""
-    if det.cls in ann:
-        label = ann[det.cls].name
+    if det.cls in constants_inf.annotations_dict:
+        label = constants_inf.annotations_dict[det.cls].name
     return DetectionDto(
         centerX=det.x,
         centerY=det.y,
@@ -178,14 +177,10 @@ def _post_annotation_to_service(token_mgr: TokenManager, media_id: str,
     try:
         token = token_mgr.get_valid_token()
         image_b64 = base64.b64encode(annotation.image).decode() if annotation.image else None
-        total_seconds = annotation.time // 1000 if annotation.time else 0
-        hours = total_seconds // 3600
-        minutes = (total_seconds % 3600) // 60
-        seconds = total_seconds % 60
         payload = {
             "mediaId": media_id,
             "source": 0,
-            "videoTime": f"{hours:02d}:{minutes:02d}:{seconds:02d}",
+            "videoTime": f"00:00:{annotation.time // 1000:02d}" if annotation.time else "00:00:00",
             "detections": [d.model_dump() for d in dtos],
         }
         if image_b64: