--- /dev/null
+/*
+ * This file is a part of MAFW
+ *
+ * Copyright (C) 2007, 2008, 2009 Nokia Corporation, all rights reserved.
+ *
+ * Contact: Visa Smolander <visa.smolander@nokia.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; version 2.1 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser 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
+ *
+ */
+
+#ifndef MAFW_GST_RENDERER_WORKER_VOLUME_H
+#define MAFW_GST_RENDERER_WORKER_VOLUME_H
+
+#include <glib.h>
+
+typedef struct _MafwGstRendererWorkerVolume MafwGstRendererWorkerVolume;
+
+typedef void(*MafwGstRendererWorkerVolumeChangedCb)(
+ MafwGstRendererWorkerVolume *wvolume, gdouble volume, gpointer data);
+
+typedef void(*MafwGstRendererWorkerVolumeMuteCb)(
+ MafwGstRendererWorkerVolume *wvolume, gboolean mute, gpointer data);
+
+typedef void(*MafwGstRendererWorkerVolumeInitCb)(
+ MafwGstRendererWorkerVolume *volume, gpointer data);
+
+G_BEGIN_DECLS
+
+void mafw_gst_renderer_worker_volume_init(GMainContext *main_context,
+ MafwGstRendererWorkerVolumeInitCb cb,
+ gpointer user_data,
+ MafwGstRendererWorkerVolumeChangedCb
+ changed_cb,
+ gpointer changed_user_data,
+ MafwGstRendererWorkerVolumeMuteCb
+ mute_cb, gpointer mute_user_data);
+
+void mafw_gst_renderer_worker_volume_set(MafwGstRendererWorkerVolume *wvolume,
+ gdouble volume, gboolean mute);
+
+gdouble mafw_gst_renderer_worker_volume_get(
+ MafwGstRendererWorkerVolume *wvolume);
+gboolean mafw_gst_renderer_worker_volume_is_muted(
+ MafwGstRendererWorkerVolume *wvolume);
+
+void mafw_gst_renderer_worker_volume_destroy(
+ MafwGstRendererWorkerVolume *wvolume);
+
+G_END_DECLS
+#endif