Add fakesrc ! fakesink test

Add fakesrc and fakesink and some performance test
Small cleanups

spa/plugins/test/plugin.c

@@ -0,0 +1,43 @@
+/* Spa Video Test Source plugin
+ * Copyright (C) 2016 Axis Communications AB
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include <spa/plugin.h>
+#include <spa/node.h>
+
+extern const SpaHandleFactory spa_fakesrc_factory;
+extern const SpaHandleFactory spa_fakesink_factory;
+
+SpaResult
+spa_enum_handle_factory (const SpaHandleFactory **factory,
+                         uint32_t                 index)
+{
+  spa_return_val_if_fail (factory != NULL, SPA_RESULT_INVALID_ARGUMENTS);
+
+  switch (index) {
+    case 0:
+      *factory = &spa_fakesrc_factory;
+      break;
+    case 1:
+      *factory = &spa_fakesink_factory;
+      break;
+    default:
+      return SPA_RESULT_ENUM_END;
+  }
+  return SPA_RESULT_OK;
+}