fix: exclude the AppleTV devices from the device discovery

Author: DimitarTachev

IOSDeviceLib/IOSDeviceLib.cpp

@@ -239,7 +239,8 @@ void get_device_properties(std::string device_identifier, json &result)
 	result["productType"] = get_device_property_value(device_identifier, "ProductType");
 	result["deviceName"] = get_device_property_value(device_identifier, "DeviceName");
 	result["productVersion"] = get_device_property_value(device_identifier, kProductVersion);
-	result["deviceColor"] = get_device_property_value(device_identifier, "DeviceColor");
+    result["deviceColor"] = get_device_property_value(device_identifier, "DeviceColor");
+    result["deviceClass"] = get_device_property_value(device_identifier, "DeviceClass");
 	//    available values:
 	//    "BluetoothAddress","BoardId","CPUArchitecture","ChipID","DeviceClass",
 	//    "DeviceColor","DeviceName","FirmwareVersion","HardwareModel",
@@ -261,13 +262,13 @@ void update_device_result(std::string device_identifier, json &result)
 
 void on_device_found(const DevicePointer* device_ptr, std::string device_identifier, json &result)
 {
-	/*
-	Interface type can be one of the followings:
-		-1 - invalid interface type
-		0 - unknown interface type
-		1 - usb interface type
-		2 - wifi interface type
-	*/
+    /*
+    Interface type can be one of the followings:
+        -1 - invalid interface type
+        0 - unknown interface type
+        1 - usb interface type
+        2 - wifi interface type
+    */
 	int interface_type = AMDeviceGetInterfaceType(device_ptr->device_info);
 	if (interface_type == kUSBInterfaceType || interface_type == kWIFIInterfaceType) {
 		if (devices.count(device_identifier)) {
@@ -286,13 +287,17 @@ void on_device_found(const DevicePointer* device_ptr, std::string device_identif
 		}
 
 		update_device_result(device_identifier, result);
+        if (result["deviceClass"] == "AppleTV") {
+            // We do not support AppleTV devices
+            result = nullptr;
+        }
 	}
 }
 
 void device_notification_callback(const DevicePointer* device_ptr)
 {
 	std::string device_identifier = get_cstring_from_cfstring(AMDeviceCopyDeviceIdentifier(device_ptr->device_info));
-	json result;
+	json result = nullptr;
 	result[kDeviceId] = device_identifier;
 	switch (device_ptr->msg)
 	{
@@ -339,7 +344,9 @@ void device_notification_callback(const DevicePointer* device_ptr)
 		}
 	}
 
-	print(result);
+    if (result != nullptr) {
+        print(result);
+    }
 }
 
 #ifdef _WIN32