try space

app.py

@@ -57,9 +57,13 @@ async def image_step2(image_file: UploadFile = File(...),things_replace: str = F
 
 @app.post('/Video')
 async def Video(video_file: UploadFile = File(...),kind_back: str = Form(...), blur_radius: str = Form(...)):#--->,background_image: UploadFile = File(...)):
-        video_data = await video_file.read()
-        nparr = np.frombuffer(video_data, np.uint8)
-        video_path=cv2.imdecode(nparr, cv2.IMREAD_COLOR) #named this as just passed as it's path
+        #video_data = await video_file.read()
+        #nparr = np.frombuffer(video_data, np.uint8)
+        #video_path=cv2.imdecode(nparr, cv2.IMREAD_COLOR) #named this as just passed as it's path
+
+        video_path = f'tmp/tmptmp.mp4'#{video_file.filename}
+        with open(video_path, 'wb') as f:
+            f.write(await video_file.read())
 
         produced_video=SegmenterBackground().Back_video(video_path, 'tmp/29_sep_2.avi','cam',['animal','person'])#video,background_image,what_remove,blur_radius=23)