Bug fix in opening video sequences revealed by a demo script.

exe/FaceLandmarkVid/FaceLandmarkVid.cpp

@@ -110,19 +110,25 @@ int main (int argc, char **argv)
 	{
 
 		// The sequence reader chooses what to open based on command line arguments provided
-		if(!sequence_reader.Open(arguments) && sequence_reader.no_input_specified)
+		if(!sequence_reader.Open(arguments))
+		{
+			// If failed to open because no input files specified, attempt to open a webcam
+			if (sequence_reader.no_input_specified)
 			{
 				// If that fails, revert to webcam
 				INFO_STREAM("No input specified, attempting to open a webcam 0");
 				if (!sequence_reader.OpenWebcam(0))
+				{
 					ERROR_STREAM("Failed to open the webcam");
+					break;
+				}
 			}
 			else
 			{
 				ERROR_STREAM("Failed to open a sequence");
 				break;
 			}
-
+		}
 		INFO_STREAM("Device or file opened");
 
 		cv::Mat captured_image = sequence_reader.GetNextFrame();

exe/FaceLandmarkVidMulti/FaceLandmarkVidMulti.cpp

@@ -156,19 +156,25 @@ int main (int argc, char **argv)
 	{
 
 		// The sequence reader chooses what to open based on command line arguments provided
-		if (!sequence_reader.Open(arguments) && sequence_reader.no_input_specified)
+		if (!sequence_reader.Open(arguments))
+		{
+			// If failed to open because no input files specified, attempt to open a webcam
+			if (sequence_reader.no_input_specified)
 			{
 				// If that fails, revert to webcam
 				INFO_STREAM("No input specified, attempting to open a webcam 0");
 				if (!sequence_reader.OpenWebcam(0))
+				{
 					ERROR_STREAM("Failed to open the webcam");
+					break;
+				}
 			}
 			else
 			{
 				ERROR_STREAM("Failed to open a sequence");
 				break;
 			}
-
+		}
 		INFO_STREAM("Device or file opened");
 
 		cv::Mat captured_image = sequence_reader.GetNextFrame();

matlab_runners/Demos/run_demo_videos.m

@@ -6,45 +6,31 @@ else
     executable = '"../../x64/Release/FaceLandmarkVid.exe"';
 end
 
-output = './demo_vid/';
+output = './demo_vids/';
-
-if(~exist(output, 'file'))
-    mkdir(output)
-end
     
 in_files = dir('../../samples/*.wmv');
 in_files = cat(1, in_files, dir('../../samples/*.avi'));
-% some parameters
-verbose = true;
 
-% Trained on in the wild and multi-pie data (less accurate SVR/CLM model)
+model = 'model/main_clnf_general.txt'; % Trained on in the wild and multi-pie data (a CLNF model)
-%model = 'model/main_clm_general.txt';
-% Trained on in-the-wild
-%model = 'model/main_clm_wild.txt';
 
-% Trained on in the wild and multi-pie data (more accurate CLNF model)
+% Uncomment the below models if you want to try them
-model = 'model/main_clnf_general.txt';
+%model = 'model/main_clnf_wild.txt'; % Trained on in-the-wild data only
-% Trained on in-the-wild
+
-%model = 'model/main_clnf_wild.txt';
+%model = 'model/main_clm_general.txt'; % Trained on in the wild and multi-pie data (less accurate SVR/CLM model)
+%model = 'model/main_clm_wild.txt'; % Trained on in-the-wild
+
+% Create a command that will run the tracker on set of videos, 
+% and visualize the output (-verbose)
+command = sprintf('%s -mloc "%s" -verbose', executable, model);
 
-command = executable;
-command = cat(2, command, [' -mloc "', model, '"']);
 % add all videos to single argument list (so as not to load the model anew
 % for every video)
 for i=1:numel(in_files)
-    
     inputFile = ['../../samples/', in_files(i).name];        
-    [~, name, ~] = fileparts(inputFile);
-        
     command = cat(2, command, [' -f "' inputFile '" ']);
-    
-    if(verbose)
-        outputVideo = ['"' output name '.avi' '"'];
-        command = cat(2, command, [' -ov ' outputVideo]);
-    end
-                 
 end
 
+% Call the executable
 if(isunix)
     unix(command);
 else