Set connection strategy to keep open

Apply to both default camera server and examples.

deps/examples/cpp-multiCameraServer/main.cpp

@@ -162,6 +162,7 @@ cs::UsbCamera StartCamera(const CameraConfig& config) {
       config.name, config.path);
 
   camera.SetConfigJson(config.config);
+  camera.SetConnectionStrategy(cs::VideoSource::kConnectionKeepOpen);
 
   return camera;
 }

deps/examples/java-multiCameraServer/src/main/java/Main.java

@@ -173,6 +173,7 @@ public final class Main {
     Gson gson = new GsonBuilder().create();
 
     camera.setConfigJson(gson.toJson(config.config));
+    camera.setConnectionStrategy(VideoSource.ConnectionStrategy.kKeepOpen);
 
     return camera;
   }

deps/examples/python-multiCameraServer/multiCameraServer.py

@@ -127,6 +127,7 @@ def startCamera(config):
         .startAutomaticCapture(name=config.name, path=config.path)
 
     camera.setConfigJson(json.dumps(config.config))
+    camera.setConnectionStrategy(VideoSource.ConnectionStrategy.kKeepOpen)
 
     return camera
 

deps/tools/multiCameraServer.cpp

@@ -163,6 +163,7 @@ void StartCamera(const CameraConfig& config) {
       config.name, config.path);
 
   camera.SetConfigJson(config.config);
+  camera.SetConnectionStrategy(cs::VideoSource::kConnectionKeepOpen);
 }
 }  // namespace