Update libvamp to 2.5.

lib-src/libvamp/skeleton/plugins.cpp

@@ -0,0 +1,37 @@
+
+// This is a skeleton file for use in creating your own plugin
+// libraries.  Replace MyPlugin and myPlugin throughout with the name
+// of your first plugin class, and fill in the gaps as appropriate.
+
+
+#include <vamp/vamp.h>
+#include <vamp-sdk/PluginAdapter.h>
+
+#include "MyPlugin.h"
+
+
+// Declare one static adapter here for each plugin class in this library.
+
+static Vamp::PluginAdapter<MyPlugin> myPluginAdapter;
+
+
+// This is the entry-point for the library, and the only function that
+// needs to be publicly exported.
+
+const VampPluginDescriptor *
+vampGetPluginDescriptor(unsigned int version, unsigned int index)
+{
+    if (version < 1) return 0;
+
+    // Return a different plugin adaptor's descriptor for each index,
+    // and return 0 for the first index after you run out of plugins.
+    // (That's how the host finds out how many plugins are in this
+    // library.)
+
+    switch (index) {
+    case  0: return myPluginAdapter.getDescriptor();
+    default: return 0;
+    }
+}
+
+