Fix matlab build

Change-Id: I657bcb2382b760dc72b4b9d789f72db35a7363b9

wrappers/matlab/librealsense_mex.cpp

@@ -923,7 +923,7 @@ void make_factory(){
         ClassFactory processing_block_factory("rs2::processing_block");
         processing_block_factory.record("process", 1, 2, [](int outc, mxArray* outv[], int inc, const mxArray* inv[])
         {
-            auto thiz = MatlabParamParser::parse<rs2::processing_block>(inv[0]);
+            auto thiz = MatlabParamParser::parse<rs2::filter>(inv[0]);
             auto frame = MatlabParamParser::parse<rs2::frame>(inv[1]);
             outv[0] = MatlabParamParser::wrap(thiz.process(frame));
         });

wrappers/matlab/pointcloud_example.m

@@ -7,16 +7,12 @@ function pointcloud_example()
     % Start streaming on an arbitrary camera with default settings
     profile = pipe.start();
 
-    % Get streaming device's name
-    dev = profile.get_device();
-    name = dev.get_info(realsense.camera_info.name);
-
     figure('visible','on');  hold on;
     figure('units','normalized','outerposition',[0 0 1 1])
-    
+
     % Main loop
-    for i = 1:600
-        
+    for i = 1:10000
+
         % Obtain frames from a streaming device
         fs = pipe.wait_for_frames();
 
@@ -37,29 +33,23 @@ function pointcloud_example()
             Z = vertices(:,3,1);
 
             plot3(X,Z,-Y,'.');
-            x = [0 , 3; -1, -5]';
-            y = [0 , 5; -8, -2]';
-            z = [0 , 3; -9, -8]';
-            hold on;
-            plot3(x, y, z)
             grid on
             hold off;
             view([45 30]);
 
             xlim([-0.5 0.5])
             ylim([0.3 1])
             zlim([-0.5 0.5])
-            
+
             xlabel('X');
             ylabel('Z');
             zlabel('Y');
 
             pause(0.01);
         end
-        % pcshow(vertices); Toolbox required       
+        % pcshow(vertices); Toolbox required
     end
 
-
      % Stop streaming
     pipe.stop();