documentation and folded item delegates from old code back in

app/project/item/footage/footage.cpp

@@ -77,6 +77,16 @@ void Footage::set_timestamp(const QDateTime &t)
   timestamp_ = t;
 }
 
+const rational &Footage::duration()
+{
+  return duration_;
+}
+
+void Footage::set_duration(const rational &duration)
+{
+  duration_ = duration;
+}
+
 void Footage::add_stream(Stream *s)
 {
   // Add a copy of this stream to the list
@@ -170,7 +180,7 @@ void Footage::UpdateTooltip()
     break;
   case kReady:
   {
-    QString tip = QCoreApplication::translate("Footage", "Filename: %1");
+    QString tip = QCoreApplication::translate("Footage", "Filename: %1").arg(filename());
 
     if (!streams_.isEmpty()) {
       tip.append("\n");

app/project/item/footage/footage.h

@@ -27,6 +27,7 @@
 #include "project/item/item.h"
 #include "project/item/footage/audiostream.h"
 #include "project/item/footage/videostream.h"
+#include "rational.h"
 
 class Footage : public Item
 {
@@ -137,6 +138,10 @@ public:
    */
   void set_timestamp(const QDateTime& t);
 
+  const rational& duration();
+
+  void set_duration(const rational& duration);
+
   /**
    * @brief Add a stream metadata object to this footage
    *
@@ -226,6 +231,11 @@ private:
    * @brief Internal ready setting
    */
   Status status_;
+
+  /**
+   * @brief Media duration
+   */
+  rational duration_;
 };
 
 #endif // FOOTAGE_H

app/project/item/footage/stream.h

@@ -25,6 +25,15 @@
 
 class Footage;
 
+/**
+ * @brief The Stream class
+ *
+ * A base class for keeping metadata about a media stream. A Stream can contain video data, audio data, subtitle data,
+ * etc. and a Stream object stores metadata about it.
+ *
+ * The Stream class is fairly simple and is intended to be subclassed for data that pertains specifically to one
+ * Stream::Type. \see VideoStream and \see AudioStream.
+ */
 class Stream
 {
 public: