Update webapp.py

webapp.py

@@ -280,13 +280,27 @@ class DemoCase:
         while True:
             if self._is_running:
                 if self.stream0 is None:
-                    # Start the stream, set desired resolution to be 720p
-                    self.stream0 = CamGear(
-                        source=self.url_dict[self.cam_loc],
-                        colorspace=None,
-                        stream_mode=True,
-                        logging=True,
-                    ).start()
+                    try:
+                        # Start the stream, set desired resolution to be 720p
+                        options = {"STREAM_RESOLUTION": "720p"}                    
+                        self.stream0 = CamGear(
+                            source=self.url_dict[self.cam_loc],
+                            colorspace=None,
+                            stream_mode=True,
+                            logging=True,
+                            **options
+                        ).start()
+                    except:
+                        # Start the stream, set best resolution
+                        self.stream0 = CamGear(
+                            source=self.url_dict[self.cam_loc],
+                            colorspace=None,
+                            stream_mode=True,
+                            logging=True
+                        ).start()
+                        logging.warning(
+                            "failed to connect {self.url_dict[self.cam_loc]} at 720p resolution, use best resolution"
+                        )
 
                 try:
                     # loop over frames
@@ -386,13 +400,27 @@ class DemoCase:
         while True:
             if self._is_running:
                 if self.stream1 is None:
-                    # Start the stream, set desired quality as 720p
-                    self.stream1 = CamGear(
-                        source=self.url_dict[self.cam_loc],
-                        colorspace=None,
-                        stream_mode=True,
-                        logging=True
-                    ).start()
+                    try:
+                        # Start the stream, set desired quality as 720p
+                        options = {"STREAM_RESOLUTION": "720p"}                                        
+                        self.stream1 = CamGear(
+                            source=self.url_dict[self.cam_loc],
+                            colorspace=None,
+                            stream_mode=True,
+                            logging=True,
+                            **options
+                        ).start()
+                    except:
+                        # Start the stream, use the best resolution
+                        self.stream1 = CamGear(
+                            source=self.url_dict[self.cam_loc],
+                            colorspace=None,
+                            stream_mode=True,
+                            logging=True
+                        ).start()
+                        logging.warning(
+                            "failed to connect {self.url_dict[self.cam_loc]} at 720p resolution, use best resolution"
+                        )
 
                 if (self._is_tracking and self.stream1 is not None):
                     if self.counter is None or self._roi_changed: