Remove the CanDecode check - it's slow, and overidden by the taglib check anyway.

src/engines/gstengine.h

@@ -28,7 +28,6 @@
 #include <QTimerEvent>
 #include <QList>
 #include <QStringList>
-#include <QMutex>
 
 #include <gst/gst.h>
 #include <boost/shared_ptr.hpp>
@@ -131,8 +130,6 @@ class GstEngine : public Engine::Base {
   float current_scope_[kScopeSize];
   int current_sample_;
 
-  QMutex scope_mutex_;
-
   bool equalizer_enabled_;
   int equalizer_preamp_;
   QList<int> equalizer_gains_;

src/librarywatcher.cpp

@@ -180,7 +180,7 @@ void LibraryWatcher::ScanSubdirectory(
 
       if (sValidImages.contains(ext_part))
         album_art[dir_part] << child;
-      else if (engine_->CanDecode(QUrl::fromLocalFile(child)))
+      else
         files_on_disk << child;
     }
   }