From bf1af0c9c909550bc077aca3a93801dfb8ed4eff Mon Sep 17 00:00:00 2001
From: Austin Blanton <imaus10@gmail.com>
Date: Wed, 5 Feb 2014 18:26:15 -0500
Subject: [PATCH] Add vbbGallery (if cvmatio is being used)

---
 openbr/plugins/gallery.cpp | 81 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 81 insertions(+), 0 deletions(-)

diff --git a/openbr/plugins/gallery.cpp b/openbr/plugins/gallery.cpp
index bb1b4f2..7ff8e96 100644
--- a/openbr/plugins/gallery.cpp
+++ b/openbr/plugins/gallery.cpp
@@ -32,6 +32,11 @@
 #include "openbr/core/opencvutils.h"
 #include "openbr/core/qtutils.h"
 
+#ifdef CVMATIO
+#include "MatlabIO.hpp"
+#include "MatlabIOContainer.hpp"
+#endif
+
 namespace br
 {
 
@@ -969,6 +974,82 @@ class landmarksGallery : public Gallery
 
 BR_REGISTER(Gallery, landmarksGallery)
 
+#ifdef CVMATIO
+
+using namespace std;
+using namespace cv;
+
+class vbbGallery : public Gallery
+{
+    Q_OBJECT
+
+    void init()
+    {
+        MatlabIO matio;
+        QString filename = file.name;
+        bool ok = matio.open(filename.toStdString(), "r");
+        if (!ok) qFatal("Couldn't open the vbb file");
+
+        vector<MatlabIOContainer> variables;
+        variables = matio.read();
+        matio.close();
+
+        double vers = variables[1].data<Mat>().at<double>(0,0);
+        if (vers != 1.4) qFatal("This is an old vbb version, we don't mess with that.");
+
+        A = variables[0].data<vector<vector<MatlabIOContainer> > >().at(0);
+        objLists = A.at(1).data<vector<MatlabIOContainer> >();
+
+        // start at the first frame (duh!)
+        currFrame = 0;
+    }
+
+    TemplateList readBlock(bool *done)
+    {
+        *done = false;
+        TemplateList rects;
+        // if it's a Mat, there aren't any bounding boxes in that frame
+        // (i think that's the cvmatio default for an empty spot in a matlab array)
+        if (objLists[currFrame].typeEquals<Mat>()) {
+            Template t(file);
+            t.file.set("FrameNumber", currFrame);
+            rects.append(Template(file));
+        } else {
+            vector<vector<MatlabIOContainer> > bbs = objLists[currFrame].data<vector<vector<MatlabIOContainer> > >();
+            for (unsigned int i=0; i<bbs.size(); i++) {
+                vector<MatlabIOContainer> bb = bbs[i];
+                Mat pos = bb[1].data<Mat>();
+                Template t = Template(file);
+                double left = pos.at<float>(0,0);
+                double top = pos.at<float>(0,1);
+                double width = pos.at<float>(0,2);
+                double height = pos.at<float>(0,3);
+                t.file.appendRect(QRectF(left, top, width, height));
+                t.file.set("FrameNumber", currFrame);
+                rects.append(t);
+            }
+        }
+        if (++currFrame == (int)objLists.size()) *done = true;
+        return rects;
+    }
+
+    void write(const Template &t)
+    {
+        (void)t; qFatal("Not implemented");
+    }
+
+private:
+    // this holds a bunch of stuff, maybe we'll use it all later
+    vector<MatlabIOContainer> A;
+    // this, a field in A, holds bounding boxes for each frame
+    vector<MatlabIOContainer> objLists;
+    int currFrame;
+};
+
+BR_REGISTER(Gallery, vbbGallery)
+
+#endif
+
 } // namespace br
 
 #include "gallery.moc"
--
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