half of the solution for #2012, for testing

campcaster/src/products/gLiveSupport/src/GLiveSupport.cxx

@@ -1163,6 +1163,32 @@ GLiveSupport :: removeFromSchedule(Ptr<const UniqueId>::Ref   scheduleEntryId)
 }
 
 
+/*------------------------------------------------------------------------------
+ *  Preload the item in the output audio player.
+ *----------------------------------------------------------------------------*/
+void
+LiveSupport :: GLiveSupport ::
+GLiveSupport :: preload(Ptr<const Playable>::Ref    playable)
+                                                    throw ()
+{
+    Ptr<const std::string>::Ref     uri = playable->getUri();
+    if (uri) {
+        try {
+            outputPlayer->preload(*uri);
+            
+        } catch (std::invalid_argument) {
+            std::cerr << "gLiveSupport: invalid argument in preload("
+                      << *uri 
+                      << ")" << std::endl;
+        } catch (std::runtime_error) {
+            std::cerr << "gLiveSupport: runtime error in preload("
+                      << *uri 
+                      << ")" << std::endl;
+        }
+    }
+}
+
+
 /*------------------------------------------------------------------------------
  *  Play a Playable object using the output audio player.
  *----------------------------------------------------------------------------*/

campcaster/src/products/gLiveSupport/src/GLiveSupport.h

@@ -870,6 +870,16 @@ class GLiveSupport : public LocalizedConfigurable,
         removeFromSchedule(Ptr<const UniqueId>::Ref   scheduleEntryId)
                                                     throw (XmlRpcException);
 
+        /**
+         *  Preload the item in the output audio player.
+         *  This is to shorten the time a playlist takes to start.
+         *
+         *  @param  playable    the Playable object to be preloaded.
+         */
+        void
+        preload(Ptr<const Playable>::Ref    playable)
+                                                throw ();
+
         /**
          *  Play a Playable object using the output audio player.
          *

campcaster/src/products/gLiveSupport/src/LiveModeWindow.cxx

@@ -197,6 +197,10 @@ void
 LiveModeWindow :: addItem(Ptr<Playable>::Ref  playable)             throw ()
 {
     addItem(treeModel->append(), playable);
+    
+    if (treeModel->children().size() == 1) {
+        preloadNextItem();
+    }
 }
 
 
@@ -268,6 +272,22 @@ LiveModeWindow :: popTop(void)                                      throw ()
 }
 
 
+/*------------------------------------------------------------------------------
+ *  Preload the item at the top of the window.
+ *----------------------------------------------------------------------------*/
+void
+LiveModeWindow :: preloadNextItem(void)                             throw ()
+{
+    Ptr<Playable>::Ref          playable;
+    Gtk::TreeModel::iterator    iter = treeModel->children().begin();
+    
+    if (iter) {
+        playable = (*iter)[modelColumns.playableColumn];
+        gLiveSupport->preload(playable);
+    }
+}
+
+
 /*------------------------------------------------------------------------------
  *  Find the selected row.
  *----------------------------------------------------------------------------*/

campcaster/src/products/gLiveSupport/src/LiveModeWindow.h

@@ -341,6 +341,13 @@ class LiveModeWindow : public GuiWindow
         Ptr<Playable>::Ref
         popTop(void)                                            throw ();
 
+        /**
+         *  Preload the item at the top of the window.
+         *  This is to shorten the time a playlist takes to start.
+         */
+        void
+        preloadNextItem()                                       throw ();
+
         /**
          *  Update the cue player display to show a stopped state.
          */

campcaster/src/products/gLiveSupport/src/MasterPanelWindow.cxx

@@ -466,11 +466,11 @@ MasterPanelWindow :: updateLiveModeWindow(Ptr<Playable>::Ref    playable)
                                                 liveModeButton));
     }
     
+    liveModeWindow->present();
+    
     if (playable) {
         liveModeWindow->addItem(playable);
     }
-    
-    liveModeWindow->present();
 }