Add Menu for selecting Capture Device

Flashcap-Demo/Main.cs

@@ -2,13 +2,29 @@
 using FlashCap;
 
 var device = new CaptureDevices();
-foreach (var descriptor in device.GetDescriptors())
+var descriptors = device.GetDescriptors().Where(x=>x.Characteristics.Length > 0).ToList();
+var deviceIndex = -1;
+while (deviceIndex == -1)
 {
-    Console.WriteLine($"Name: {descriptor.Name}, " +
-                      $"Description: {descriptor.Description}, " +
-                      $"DeviceType: {descriptor.DeviceType}, " +
-                      $"Identity: {descriptor.Identity}" +
-                      $"Characteristics:\n" +
-                      $"\t{string.Join("\n\t",descriptor.Characteristics.Where(x=>x.Height >=1080))}"
-                      );
+    PrintDevices(descriptors);
+    var input = Console.ReadLine();
+    int.TryParse(input, out var result);
+    if (result<1 || result>descriptors.Count)
+    {
+        continue;
+    }
+    deviceIndex = result-1;
+}
+var captureDescriptor = descriptors[deviceIndex];
+Console.WriteLine($"Characteristics:\n\t{string.Join("\n\t",captureDescriptor.Characteristics)}");
+return;
+
+void PrintDevices(List<CaptureDeviceDescriptor> captureDeviceDescriptors)
+{
+    Console.WriteLine("Choose your Device:");
+    for (var index = 0; index < captureDeviceDescriptors.Count; index++)
+    {
+        var descriptor = captureDeviceDescriptors[index];
+        Console.WriteLine($"\t({index+1}): {descriptor.Name}");
+    }
 }