add pixel aspect ratio to nodeglobals

Turns our pixel aspect ratio is broken in various places. Will have to fix this at some point.

app/node/globals.h

@@ -30,16 +30,29 @@ namespace olive {
 class NodeGlobals
 {
 public:
-  NodeGlobals(const QVector2D &resolution, const TimeRange &time) :
+  NodeGlobals(const QVector2D &resolution, const rational &pixel_aspect, const TimeRange &time) :
     resolution_(resolution),
+    pixel_aspect_(pixel_aspect),
     time_(time)
-  {}
+  {
+    resolution_by_par_ = QVector2D(resolution_.x() * pixel_aspect_.toDouble(), resolution_.y());
+  }
 
   const QVector2D &resolution() const
   {
     return resolution_;
   }
 
+  const QVector2D &resolution_by_par() const
+  {
+    return resolution_by_par_;
+  }
+
+  const rational &pixel_aspect() const
+  {
+    return pixel_aspect_;
+  }
+
   const TimeRange &time() const
   {
     return time_;
@@ -53,6 +66,10 @@ public:
 private:
   QVector2D resolution_;
 
+  rational pixel_aspect_;
+
+  QVector2D resolution_by_par_;
+
   TimeRange time_;
 
 };

app/node/traverser.cpp

@@ -141,7 +141,7 @@ int NodeTraverser::GenerateRowValueElementIndex(const Node *node, const QString
 
 NodeGlobals NodeTraverser::GenerateGlobals(const VideoParams &params, const TimeRange &time)
 {
-  return NodeGlobals(QVector2D(params.width(), params.height()), time);
+  return NodeGlobals(QVector2D(params.width(), params.height()), params.pixel_aspect_ratio(), time);
 }
 
 int NodeTraverser::GetChannelCountFromJob(const GenerateJob &job)