For compatibility

inference_video.py

@@ -69,6 +69,8 @@ parser.add_argument('--ext', dest='ext', type=str, default='mp4', help='vid_out
 parser.add_argument('--exp', dest='exp', type=int, default=1)
 args = parser.parse_args()
 assert (not args.video is None or not args.img is None)
+if args.UHD and args.scale==1.0:
+    args.scale = 0.5
 assert args.scale in [0.25, 0.5, 1.0, 2.0, 4.0]
 if not args.img is None:
     args.png = True