Update capture_thread.py

Modify the image format setting before setting the resolution. If it is set after the resolution, it will not work.

Author: SLBiuBiu

surround_view/capture_thread.py

@@ -86,18 +86,18 @@ def connect_camera(self):
             # try to set camera resolution
             if self.resolution is not None:
                 width, height = self.resolution
+                self.cap.set(cv2.CAP_PROP_FOURCC, cv2.VideoWriter_fourcc(*"MJPG"))
                 self.cap.set(cv2.CAP_PROP_FRAME_WIDTH, width)
                 self.cap.set(cv2.CAP_PROP_FRAME_HEIGHT, height)
-                self.cap.set(cv2.CAP_PROP_FOURCC, cv2.VideoWriter_fourcc(*"MJPG"))
                 # some camera may become closed if the resolution is not supported
                 if not self.cap.isOpened():
                     qDebug("Resolution not supported by camera device: {}".format(self.resolution))
                     return False
             # use the default resolution
             else:
+                self.cap.set(cv2.CAP_PROP_FOURCC, cv2.VideoWriter_fourcc(*"MJPG"))
                 width = int(self.cap.get(cv2.CAP_PROP_FRAME_WIDTH))
                 height = int(self.cap.get(cv2.CAP_PROP_FRAME_HEIGHT))
-                self.cap.set(cv2.CAP_PROP_FOURCC, cv2.VideoWriter_fourcc(*"MJPG"))
                 self.resolution = (width, height)
 
         return True