Include "GstPlayer" lib renamed to "GstClapper" as part of the app

lib/gst/clapper/gstclapper-signal-dispatcher.c

@@ -0,0 +1,58 @@
+/* GStreamer
+ *
+ * Copyright (C) 2014-2015 Sebastian Dröge <sebastian@centricular.com>
+ * Copyright (C) 2021 Rafał Dzięgiel <rafostar.github@gmail.com>
+ *
+ * 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.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "gstclapper-signal-dispatcher.h"
+#include "gstclapper-signal-dispatcher-private.h"
+
+G_DEFINE_INTERFACE (GstClapperSignalDispatcher, gst_clapper_signal_dispatcher,
+    G_TYPE_OBJECT);
+
+static void
+gst_clapper_signal_dispatcher_default_init (G_GNUC_UNUSED
+    GstClapperSignalDispatcherInterface * iface)
+{
+
+}
+
+void
+gst_clapper_signal_dispatcher_dispatch (GstClapperSignalDispatcher * self,
+    GstClapper * clapper, GstClapperSignalDispatcherFunc emitter, gpointer data,
+    GDestroyNotify destroy)
+{
+  GstClapperSignalDispatcherInterface *iface;
+
+  if (!self) {
+    emitter (data);
+    if (destroy)
+      destroy (data);
+    return;
+  }
+
+  g_return_if_fail (GST_IS_CLAPPER_SIGNAL_DISPATCHER (self));
+  iface = GST_CLAPPER_SIGNAL_DISPATCHER_GET_INTERFACE (self);
+  g_return_if_fail (iface->dispatch != NULL);
+
+  iface->dispatch (self, clapper, emitter, data, destroy);
+}