[chronojump] A webcam can be configured without framerate

[Xavier de Blas <xaviblas src gnome org>]

commit 778d584238ae2c8110bca8a84dbea943d0f52212
Author: Xavier de Blas <xaviblas gmail com>
Date:   Mon Nov 4 16:13:00 2019 +0100

    A webcam can be configured without framerate

 src/preferences.cs | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)
---
diff --git a/src/preferences.cs b/src/preferences.cs
index 3e4acdbd..1b9eaa77 100644
--- a/src/preferences.cs
+++ b/src/preferences.cs
@@ -327,8 +327,11 @@ public class Preferences
 
        public bool IsVideoConfigured()
        {
-               return (videoDevice != "" && videoDevicePixelFormat != "" &&
-                               videoDeviceResolution != "" && videoDeviceFramerate != "");
+               return (videoDevice != "" &&
+                               videoDevicePixelFormat != "" &&
+                               videoDeviceResolution != "" //&&
+                               //videoDeviceFramerate != ""    //a really old Creative camera on a Linux 
machine does not return the framerate, so allow to be configured without it
+                               );
        }
 
        ~Preferences() {}