ProcessorParamsBase constructor & explicit virtual

src/processor_base.h

@@ -109,10 +109,31 @@ class KFPackBuffer
  */
 struct ProcessorParamsBase
 {
+    ProcessorParamsBase() = default;
+
+    ProcessorParamsBase(bool _voting_active,
+                        Scalar _time_tolerance,
+                        const std::string& _type,
+                        const std::string& _name)
+      : voting_active(_voting_active)
+      , time_tolerance(_time_tolerance)
+      , type(_type)
+      , name(_name)
+    {
+      //
+    }
+
+    virtual ~ProcessorParamsBase() = default;
+
+    bool voting_active = false;
+
+    ///< maximum time difference between a Keyframe time stamp and
+    /// a particular Capture of this processor to allow assigning
+    /// this Capture to the Keyframe.
+    Scalar time_tolerance = Scalar(0);
+
     std::string type;
     std::string name;
-    Scalar time_tolerance; ///< maximum time difference between a Keyframe time stamp and a particular Capture of this processor to allow assigning this Capture to the Keyframe.
-    bool voting_active;
 };
 
 //class ProcessorBase