Getting rid of all the hard coded constants

Input/input.cpp

@@ -1,12 +1,9 @@
 #include "input.h"
 
-Input::Input(/* args */) : cap(0)
+Input::Input(int video_height, int video_width) : cap(0), video_height(video_height), video_width(video_width)
 {
-    const int VID_HEIGHT = 240;
-    const int VID_WIDTH = 320;
-
-    this->cap.set(CAP_PROP_FRAME_HEIGHT, VID_HEIGHT);
-    this->cap.set(CAP_PROP_FRAME_WIDTH, VID_WIDTH);
+    this->cap.set(CAP_PROP_FRAME_HEIGHT, video_height);
+    this->cap.set(CAP_PROP_FRAME_WIDTH, video_width);
 }
 
 Input::~Input()

Input/input.h

@@ -17,7 +17,10 @@ private:
     VideoCapture cap;
 
 public:
-    Input(/* args */);
+    int video_height;
+    int video_width;
+    Input(int video_height, int video_width);
+    Input() = delete;
     ~Input();
     Mat readFile(String filePath);
     Mat readWebcam();