Locate and position the current Audacity source code, and clear a variety of old junk out of the way into junk-branches

src/GStreamerLoader.h

@@ -0,0 +1,103 @@
+/**********************************************************************
+
+Audacity: A Digital Audio Editor
+
+GStreamerLoader.h
+
+Audacity(R) is copyright (c) 1999-2008 Audacity Team.
+License: GPL v2.  See License.txt.
+
+******************************************************************//**
+
+Describes shared object that is used to access GStreamer
+
+*//*******************************************************************/
+
+#if !defined(__AUDACITY_GSTREAMER__)
+#define __AUDACITY_GSTREAMER__
+
+#include "Audacity.h"
+/* rather earlier than normal, but pulls in config*.h and other program stuff
+ * we need for the next bit */
+#include <wx/string.h>
+#include <wx/dynlib.h>
+#include <wx/log.h>			// for wxLogNull
+#include <wx/msgdlg.h>		// for wxMessageBox
+#include <wx/utils.h>
+#include "../widgets/LinkingHtmlWindow.h"
+#include "FileDialog.h"
+#include "ShuttleGui.h"
+#include "../Prefs.h"
+#include <wx/checkbox.h>
+#include <wx/textctrl.h>
+#include <wx/thread.h>
+
+class GStreamerLoader;
+
+extern GStreamerLoader *GStreamerInst;
+
+//----------------------------------------------------------------------------
+// Get GStreamer version
+//----------------------------------------------------------------------------
+wxString GetGStreamerVersion(wxWindow *parent);
+
+//----------------------------------------------------------------------------
+// Attempt to load and enable/disable GStreamer at startup
+//----------------------------------------------------------------------------
+void GStreamerStartup();
+
+/* From here on in, this stuff only applies when gstreamer is available */
+#if defined(USE_GSTREAMER)
+
+// On Windows we don't have configure script to turn this on or off,
+// so let's use msw-specific pragma to add required libraries.
+// Of course, library search path still has to be updated manually
+#   if defined(__WXMSW__)
+#      pragma comment(lib,"libgstreamer-0.10.lib")
+#      pragma comment(lib,"libgstapp-0.10.lib")
+#      pragma comment(lib,"libgstbase-0.10.lib")
+#      pragma comment(lib,"glib-2.0.lib")
+#      pragma comment(lib,"gobject-2.0.lib")
+#      pragma comment(lib,"gthread-2.0.lib")
+#      pragma comment(lib,"libxml2.lib")
+#   endif
+    extern "C" {
+#      include <gst/gst.h>
+#      include <glib.h>
+#      include <glib/gstdio.h>
+    }
+
+bool LoadGStreamer(bool showerror);
+
+gboolean LogStructure(GQuark field_id, const GValue *value, gpointer user_data);
+
+class GStreamerLoader
+{
+public:
+   GStreamerLoader();
+   ~GStreamerLoader();
+
+   bool Loaded()
+   {
+      return mGStreamerLoaded;
+   }
+
+   wxString GetVersion()
+   {
+      return wxString::Format(wxT("%d.%d.%d-%d"),major, minor, micro, nano);
+   }
+
+   wxArrayString GetExtensions();
+
+   bool LoadGStreamer(bool showerr);
+
+private:
+
+   unsigned int major, minor, micro, nano;
+
+   bool mGStreamerLoaded;
+};
+
+#endif // USE_GSTREAMER
+#endif // __AUDACITY_GSTREAMER__
+