Update app.py

app.py

@@ -26,12 +26,12 @@ def inference(video, text):
   current_frame = 0
   # Read the current frame
   ret, frame = capture.read()
-  while ret:
-    if ret:
+  while capture.isOpened():
       ret,frame = capture.read()
       print('Read a new frame: ', ret)
       current_frame += 1
-      video_frames.append(Image.fromarray(frame[:, :, ::-1]))
+      if ret:
+        video_frames.append(Image.fromarray(frame[:, :, ::-1]))
 
   
   # Print some statistics