From 764337e2a181edfab9801c6ac2bcb3318b3143b2 Mon Sep 17 00:00:00 2001
From: somacoder <gkbartleyjr@gmail.com>
Date: Sun, 5 Mar 2017 15:49:01 -0500
Subject: [PATCH] Disable Key Presses if Quiet Mode Enabled

Enables running without OpenCV calling on GTK, which you do not installed if running in a non-interactive manner. Perhaps better solution exist if "interactive" command line was added.
---
 exe/FeatureExtraction/FeatureExtraction.cpp | 42 +++++++++++----------
 1 file changed, 23 insertions(+), 19 deletions(-)

diff --git a/exe/FeatureExtraction/FeatureExtraction.cpp b/exe/FeatureExtraction/FeatureExtraction.cpp
index 1e8fbf9..2c67b6c 100644
--- a/exe/FeatureExtraction/FeatureExtraction.cpp
+++ b/exe/FeatureExtraction/FeatureExtraction.cpp
@@ -2,7 +2,7 @@
 // Copyright (C) 2016, Carnegie Mellon University and University of Cambridge,
 // all rights reserved.
 //
-// THIS SOFTWARE IS PROVIDED “AS IS” FOR ACADEMIC USE ONLY AND ANY EXPRESS
+// THIS SOFTWARE IS PROVIDED “AS IS” FOR ACADEMIC USE ONLY AND ANY EXPRESS
 // OR IMPLIED WARRANTIES WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 // THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 // PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS
@@ -15,13 +15,13 @@
 // POSSIBILITY OF SUCH DAMAGE.
 //
 // Notwithstanding the license granted herein, Licensee acknowledges that certain components
-// of the Software may be covered by so-called “open source” software licenses (“Open Source
-// Components”), which means any software licenses approved as open source licenses by the
+// of the Software may be covered by so-called “open source” software licenses (“Open Source
+// Components”), which means any software licenses approved as open source licenses by the
 // Open Source Initiative or any substantially similar licenses, including without limitation any
 // license that, as a condition of distribution of the software licensed under such license,
 // requires that the distributor make the software available in source code format. Licensor shall
 // provide a list of Open Source Components for a particular version of the Software upon
-// Licensee’s request. Licensee will comply with the applicable terms of such licenses and to
+// Licensee’s request. Licensee will comply with the applicable terms of such licenses and to
 // the extent required by the licenses covering Open Source Components, the terms of such
 // licenses will apply in lieu of the terms of this Agreement. To the extent the terms of the
 // licenses applicable to Open Source Components prohibit any of the restrictions in this
@@ -38,20 +38,20 @@
 //       reports and manuals, must cite at least one of the following works:
 //
 //       OpenFace: an open source facial behavior analysis toolkit
-//       Tadas Baltrušaitis, Peter Robinson, and Louis-Philippe Morency
+//       Tadas Baltrušaitis, Peter Robinson, and Louis-Philippe Morency
 //       in IEEE Winter Conference on Applications of Computer Vision, 2016  
 //
 //       Rendering of Eyes for Eye-Shape Registration and Gaze Estimation
-//       Erroll Wood, Tadas Baltrušaitis, Xucong Zhang, Yusuke Sugano, Peter Robinson, and Andreas Bulling 
+//       Erroll Wood, Tadas Baltrušaitis, Xucong Zhang, Yusuke Sugano, Peter Robinson, and Andreas Bulling 
 //       in IEEE International. Conference on Computer Vision (ICCV),  2015 
 //
 //       Cross-dataset learning and person-speci?c normalisation for automatic Action Unit detection
-//       Tadas Baltrušaitis, Marwa Mahmoud, and Peter Robinson 
+//       Tadas Baltrušaitis, Marwa Mahmoud, and Peter Robinson 
 //       in Facial Expression Recognition and Analysis Challenge, 
 //       IEEE International Conference on Automatic Face and Gesture Recognition, 2015 
 //
 //       Constrained Local Neural Fields for robust facial landmark detection in the wild.
-//       Tadas Baltrušaitis, Peter Robinson, and Louis-Philippe Morency. 
+//       Tadas Baltrušaitis, Peter Robinson, and Louis-Philippe Morency. 
 //       in IEEE Int. Conference on Computer Vision Workshops, 300 Faces in-the-Wild Challenge, 2013.    
 //
 ///////////////////////////////////////////////////////////////////////////////
@@ -680,20 +680,24 @@ int main (int argc, char **argv)
 					captured_image = cv::Mat();
 				}
 			}
-			// detect key presses
-			char character_press = cv::waitKey(1);
 			
-			// restart the tracker
-			if(character_press == 'r')
+			if (!det_parameters.quiet_mode)
 			{
-				face_model.Reset();
+				// detect key presses
+				char character_press = cv::waitKey(1);
+			
+				// restart the tracker
+				if(character_press == 'r')
+				{
+					face_model.Reset();
+				}
+				// quit the application
+				else if(character_press=='q')
+				{
+					return(0);
+				}
 			}
-			// quit the application
-			else if(character_press=='q')
-			{
-				return(0);
-			}
-
+			
 			// Update the frame count
 			frame_count++;