Some interface implementations for video4linux/video4linux2 plugins: a Tuner interface, with which one can select inp...

Original commit message from CVS:
Some interface implementations for video4linux/video4linux2 plugins:
* a Tuner interface, with which one can select inputs and stations. Audio
work is underway here, but unfinished.
* A Xoverlay interface with which one can do simple overlay. Similar to
the API of the v4l/Xv XFree86 extension. Widget implementation for
GTK-2.0 coming up in the sandbox.
* Colorbalance - for adapting colors (brightness, contrast, etc.) - pretty
basic and maybe somewhat overdesigned. But it'll do for now.

Apart from these interfaces, there's also a loadable library 'xwindowlistener'
that listenes to X for the movement of a window and the overlap of other
windows. This is partly copied from xawtv (and thus partly GPL :(), but it's
needed for the xoverlay interface implementation in the v4l/v4l2 elements.

Lastly, some small changes to remove redundant properties from the v4l/v4l2
elements since these can be done much simpler. Comments appreciated!

7 files changed, 644 insertions, 0 deletions

diff --git a/gst-libs/gst/tuner/Makefile.am b/gst-libs/gst/tuner/Makefile.am
new file mode 100644
index 00000000..e349eb32
--- /dev/null
+++ b/gst-libs/gst/tuner/Makefile.am
@@ -0,0 +1,17 @@
+libgstinterfacesincludedir = \
+	$(includedir)/gstreamer-@GST_MAJORMINOR@/gst/tuner
+
+libgstinterfacesinclude_HEADERS = \
+		tuner.h \
+		tunernorm.h \
+		tunerchannel.h
+
+lib_LTLIBRARIES = libgsttuner.la
+
+libgsttuner_la_SOURCES = \
+	tuner.c \
+	tunernorm.c \
+	tunerchannel.c
+libgsttuner_la_LIBADD = 
+libgsttuner_la_CFLAGS = $(GST_CFLAGS) $(GST_OPT_CFLAGS)
+libgsttuner_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
diff --git a/gst-libs/gst/tuner/tuner.c b/gst-libs/gst/tuner/tuner.c
new file mode 100644
index 00000000..43dda8d0
--- /dev/null
+++ b/gst-libs/gst/tuner/tuner.c
@@ -0,0 +1,190 @@
+/* GStreamer Tuner
+ * Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
+ *
+ * tuner.c: tuner design virtual class function wrappers
+ *
+ * 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., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "tuner.h"
+
+static void 	gst_tuner_class_init	(GstTunerClass *klass);
+
+GType
+gst_tuner_get_type (void)
+{
+  static GType gst_tuner_type = 0;
+
+  if (!gst_tuner_type) {
+    static const GTypeInfo gst_tuner_info = {
+      sizeof (GstTunerClass),
+      (GBaseInitFunc) gst_tuner_class_init,
+      NULL,
+      NULL,
+      NULL,
+      NULL,
+      0,
+      0,
+      NULL,
+    };
+
+    gst_tuner_type = g_type_register_static (G_TYPE_INTERFACE,
+					     "GstTuner",
+					     &gst_tuner_info, 0);
+    g_type_interface_add_prerequisite (gst_tuner_type,
+				       GST_TYPE_INTERFACE);
+  }
+
+  return gst_tuner_type;
+}
+
+static void
+gst_tuner_class_init (GstTunerClass *klass)
+{
+  /* default virtual functions */
+  klass->list_channels = NULL;
+  klass->set_channel = NULL;
+  klass->get_channel = NULL;
+
+  klass->list_norms = NULL;
+  klass->set_norm = NULL;
+  klass->get_norm = NULL;
+
+  klass->set_frequency = NULL;
+  klass->get_frequency = NULL;
+  klass->signal_strength = NULL;
+}
+
+const GList *
+gst_tuner_list_channels (GstTuner *tuner)
+{
+  GstTunerClass *klass = GST_TUNER_GET_CLASS (tuner);
+
+  if (klass->list_channels) {
+    return klass->list_channels (tuner);
+  }
+
+  return NULL;
+}
+
+void
+gst_tuner_set_channel (GstTuner        *tuner,
+		       GstTunerChannel *channel)
+{
+  GstTunerClass *klass = GST_TUNER_GET_CLASS (tuner);
+
+  if (klass->set_channel) {
+    klass->set_channel (tuner, channel);
+  }
+}
+
+const GstTunerChannel *
+gst_tuner_get_channel (GstTuner *tuner)
+{
+  GstTunerClass *klass = GST_TUNER_GET_CLASS (tuner);
+
+  if (klass->get_channel) {
+    return klass->get_channel (tuner);
+  }
+
+  return NULL;
+}
+
+const GList *
+gst_tuner_list_norms (GstTuner *tuner)
+{
+  GstTunerClass *klass = GST_TUNER_GET_CLASS (tuner);
+
+  if (klass->list_norms) {
+    return klass->list_norms (tuner);
+  }
+
+  return NULL;
+}
+
+void
+gst_tuner_set_norm (GstTuner     *tuner,
+		    GstTunerNorm *norm)
+{
+  GstTunerClass *klass = GST_TUNER_GET_CLASS (tuner);
+
+  if (klass->set_norm) {
+    klass->set_norm (tuner, norm);
+  }
+}
+
+const GstTunerNorm *
+gst_tuner_get_norm (GstTuner *tuner)
+{
+  GstTunerClass *klass = GST_TUNER_GET_CLASS (tuner);
+
+  if (klass->get_norm) {
+    return klass->get_norm (tuner);
+  }
+
+  return NULL;
+}
+
+void
+gst_tuner_set_frequency (GstTuner        *tuner,
+			 GstTunerChannel *channel,
+			 gulong           frequency)
+{
+  GstTunerClass *klass = GST_TUNER_GET_CLASS (tuner);
+
+  g_return_if_fail (GST_TUNER_CHANNEL_HAS_FLAG (channel,
+					GST_TUNER_CHANNEL_FREQUENCY));
+
+  if (klass->set_frequency) {
+    klass->set_frequency (tuner, channel, frequency);
+  }
+}
+
+gulong
+gst_tuner_get_frequency (GstTuner        *tuner,
+			 GstTunerChannel *channel)
+{
+  GstTunerClass *klass = GST_TUNER_GET_CLASS (tuner);
+
+  g_return_val_if_fail (GST_TUNER_CHANNEL_HAS_FLAG (channel,
+					GST_TUNER_CHANNEL_FREQUENCY), 0);
+
+  if (klass->get_frequency) {
+    return klass->get_frequency (tuner, channel);
+  }
+
+  return 0;
+}
+
+gint
+gst_tuner_signal_strength (GstTuner        *tuner,
+			   GstTunerChannel *channel)
+{
+  GstTunerClass *klass = GST_TUNER_GET_CLASS (tuner);
+
+  g_return_val_if_fail (GST_TUNER_CHANNEL_HAS_FLAG (channel,
+					GST_TUNER_CHANNEL_FREQUENCY), 0);
+
+  if (klass->signal_strength) {
+    return klass->signal_strength (tuner, channel);
+  }
+
+  return 0;
+}
diff --git a/gst-libs/gst/tuner/tuner.h b/gst-libs/gst/tuner/tuner.h
new file mode 100644
index 00000000..1cd51e11
--- /dev/null
+++ b/gst-libs/gst/tuner/tuner.h
@@ -0,0 +1,96 @@
+/* GStreamer Tuner
+ * Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
+ *
+ * tuner.h: tuner interface design
+ *
+ * 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., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __GST_TUNER_H__
+#define __GST_TUNER_H__
+
+#include <gst/gst.h>
+#include <gst/tuner/tunernorm.h>
+#include <gst/tuner/tunerchannel.h>
+
+G_BEGIN_DECLS
+
+#define GST_TYPE_TUNER \
+  (gst_tuner_get_type ())
+#define GST_TUNER(obj) \
+  (GST_INTERFACE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_TUNER, GstTuner))
+#define GST_TUNER_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_TUNER, GstTunerClass))
+#define GST_IS_TUNER(obj) \
+  (GST_INTERFACE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_TUNER))
+#define GST_IS_TUNER_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_TUNER))
+#define GST_TUNER_GET_CLASS(inst) \
+  (G_TYPE_INSTANCE_GET_INTERFACE ((inst), GST_TYPE_TUNER, GstTunerClass))
+
+typedef struct _GstTuner GstTuner;
+
+typedef struct _GstTunerClass {
+  GTypeInterface klass;
+
+  /* virtual functions */
+  const GList * (* list_channels)   (GstTuner        *tuner);
+  void          (* set_channel)     (GstTuner        *tuner,
+				     GstTunerChannel *channel);
+  const GstTunerChannel *
+		(* get_channel)     (GstTuner        *tuner);
+
+  const GList * (* list_norms)      (GstTuner        *tuner);
+  void          (* set_norm)        (GstTuner        *tuner,
+				     GstTunerNorm    *norm);
+  const GstTunerNorm *
+		(* get_norm)        (GstTuner        *tuner);
+
+  void          (* set_frequency)   (GstTuner        *tuner,
+				     GstTunerChannel *channel,
+				     gulong           frequency);
+  gulong        (* get_frequency)   (GstTuner        *tuner,
+				     GstTunerChannel *channel);
+  gint		(* signal_strength) (GstTuner        *tuner,
+				     GstTunerChannel *channel);
+} GstTunerClass;
+
+GType		gst_tuner_get_type		(void);
+
+/* virtual class function wrappers */
+const GList *	gst_tuner_list_channels		(GstTuner        *tuner);
+void		gst_tuner_set_channel		(GstTuner        *tuner,
+						 GstTunerChannel *channel);
+const GstTunerChannel *
+		gst_tuner_get_channel		(GstTuner        *tuner);
+
+const GList *	gst_tuner_list_norms		(GstTuner        *tuner);
+void		gst_tuner_set_norm		(GstTuner        *tuner,
+						 GstTunerNorm    *channel);
+const GstTunerNorm *
+		gst_tuner_get_norm		(GstTuner        *tuner);
+
+void		gst_tuner_set_frequency		(GstTuner        *tuner,
+						 GstTunerChannel *channel,
+						 gulong           frequency);
+gulong		gst_tuner_get_frequency		(GstTuner        *tuner,
+						 GstTunerChannel *channel);
+gint		gst_tuner_signal_strength	(GstTuner        *tuner,
+						 GstTunerChannel *channel);
+
+G_END_DECLS
+
+#endif /* __GST_TUNER_H__ */
diff --git a/gst-libs/gst/tuner/tunerchannel.c b/gst-libs/gst/tuner/tunerchannel.c
new file mode 100644
index 00000000..aa98978e
--- /dev/null
+++ b/gst-libs/gst/tuner/tunerchannel.c
@@ -0,0 +1,114 @@
+/* GStreamer Tuner
+ * Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
+ *
+ * tunerchannel.c: tuner channel object design
+ *
+ * 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., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "tunerchannel.h"
+
+enum {
+  /* FILL ME */
+  SIGNAL_FREQUENCY_CHANGED,
+  SIGNAL_SIGNAL_CHANGED,
+  LAST_SIGNAL
+};
+
+static void gst_tuner_channel_class_init (GstTunerChannelClass *klass);
+static void gst_tuner_channel_init 	 (GstTunerChannel *channel);
+static void gst_tuner_channel_dispose    (GObject         *object);
+
+static GObjectClass *parent_class = NULL;
+static guint signals[LAST_SIGNAL] = { 0 };
+
+GType
+gst_tuner_channel_get_type (void)
+{
+  static GType gst_tuner_channel_type = 0;
+
+  if (!gst_tuner_channel_type) {
+    static const GTypeInfo tuner_channel_info = {
+      sizeof (GstTunerChannelClass),
+      NULL,
+      NULL,
+      (GClassInitFunc) gst_tuner_channel_class_init,
+      NULL,
+      NULL,
+      sizeof (GstTunerChannel),
+      0,
+      (GInstanceInitFunc) gst_tuner_channel_init,
+      NULL
+    };
+
+    gst_tuner_channel_type =
+	g_type_register_static (G_TYPE_OBJECT,
+				"GstTunerChannel",
+				&tuner_channel_info, 0);
+  }
+
+  return gst_tuner_channel_type;
+}
+
+static void
+gst_tuner_channel_class_init (GstTunerChannelClass *klass)
+{
+  GObjectClass *object_klass = (GObjectClass *) klass;
+
+  parent_class = g_type_class_ref (G_TYPE_OBJECT);
+
+  signals[SIGNAL_FREQUENCY_CHANGED] =
+    g_signal_new ("frequency_changed", G_TYPE_FROM_CLASS (klass),
+		  G_SIGNAL_RUN_LAST,
+                  G_STRUCT_OFFSET (GstTunerChannelClass,
+				   frequency_changed),
+                  NULL, NULL, g_cclosure_marshal_VOID__ULONG,
+                  G_TYPE_NONE, 1, G_TYPE_ULONG);
+  signals[SIGNAL_SIGNAL_CHANGED] =
+    g_signal_new ("signal_changed", G_TYPE_FROM_CLASS (klass),
+		  G_SIGNAL_RUN_LAST,
+                  G_STRUCT_OFFSET (GstTunerChannelClass,
+				   signal_changed),
+                  NULL, NULL, g_cclosure_marshal_VOID__INT,
+                  G_TYPE_NONE, 1, G_TYPE_INT);
+
+  object_klass->dispose = gst_tuner_channel_dispose;
+}
+
+static void
+gst_tuner_channel_init (GstTunerChannel *channel)
+{
+  channel->label = NULL;
+  channel->flags = 0;
+  channel->min_frequency = channel->max_frequency = 0;
+  channel->min_signal = channel->max_signal = 0;
+}
+
+static void
+gst_tuner_channel_dispose (GObject *object)
+{
+  GstTunerChannel *channel = GST_TUNER_CHANNEL (object);
+
+  if (channel->label)
+    g_free (channel->label);
+
+  if (parent_class->dispose)
+    parent_class->dispose (object);
+}
diff --git a/gst-libs/gst/tuner/tunerchannel.h b/gst-libs/gst/tuner/tunerchannel.h
new file mode 100644
index 00000000..b8031455
--- /dev/null
+++ b/gst-libs/gst/tuner/tunerchannel.h
@@ -0,0 +1,77 @@
+/* GStreamer Tuner
+ * Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
+ *
+ * tunerchannel.h: tuner channel object design
+ *
+ * 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., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __GST_TUNER_CHANNEL_H__
+#define __GST_TUNER_CHANNEL_H__
+
+#include <gst/gst.h>
+
+G_BEGIN_DECLS
+
+#define GST_TYPE_TUNER_CHANNEL \
+  (gst_tuner_channel_get_type ())
+#define GST_TUNER_CHANNEL(obj) \
+  (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_TUNER_CHANNEL, \
+			       GstTunerChannel))
+#define GST_TUNER_CHANNEL_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_TUNER_CHANNEL, \
+			    GstTunerChannelClass))
+#define GST_IS_TUNER_CHANNEL(obj) \
+  (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_TUNER_CHANNEL))
+#define GST_IS_TUNER_CHANNEL_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_TUNER_CHANNEL))
+
+typedef enum {
+  GST_TUNER_CHANNEL_INPUT     = (1<<0),
+  GST_TUNER_CHANNEL_OUTPUT    = (1<<1),
+  GST_TUNER_CHANNEL_FREQUENCY = (1<<2),
+  GST_TUNER_CHANNEL_AUDIO     = (1<<3),
+} GstTunerChannelFlags;
+
+#define GST_TUNER_CHANNEL_HAS_FLAG(channel, flag) \
+  ((channel)->flags & flag)
+
+typedef struct _GstTunerChannel {
+  GObject              parent;
+
+  gchar               *label;
+  GstTunerChannelFlags flags;
+  gulong               min_frequency,
+		       max_frequency;
+  gint                 min_signal,
+		       max_signal;
+} GstTunerChannel;
+
+typedef struct _GstTunerChannelClass {
+  GObjectClass parent;
+
+  /* signals */
+  void (*frequency_changed) (GstTunerChannel *tuner,
+			     gulong           frequency);
+  void (*signal_changed)    (GstTunerChannel *tuner,
+			     gint             signal);
+} GstTunerChannelClass;
+
+GType		gst_tuner_channel_get_type	(void);
+
+G_END_DECLS
+
+#endif /* __GST_TUNER_CHANNEL_H__ */
diff --git a/gst-libs/gst/tuner/tunernorm.c b/gst-libs/gst/tuner/tunernorm.c
new file mode 100644
index 00000000..48d75de2
--- /dev/null
+++ b/gst-libs/gst/tuner/tunernorm.c
@@ -0,0 +1,95 @@
+/* GStreamer Tuner
+ * Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
+ *
+ * tunernorm.c: tuner norm object design
+ *
+ * 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., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "tunernorm.h"
+
+enum {
+  /* FILL ME */
+  LAST_SIGNAL
+};
+
+static void gst_tuner_norm_class_init (GstTunerNormClass *klass);
+static void gst_tuner_norm_init       (GstTunerNorm *norm);
+static void gst_tuner_norm_dispose    (GObject      *object);
+
+static GObjectClass *parent_class = NULL;
+/*static guint signals[LAST_SIGNAL] = { 0 };*/
+
+GType
+gst_tuner_norm_get_type (void)
+{
+  static GType gst_tuner_norm_type = 0;
+
+  if (!gst_tuner_norm_type) {
+    static const GTypeInfo tuner_norm_info = {
+      sizeof (GstTunerNormClass),
+      NULL,
+      NULL,
+      (GClassInitFunc) gst_tuner_norm_class_init,
+      NULL,
+      NULL,
+      sizeof (GstTunerNorm),
+      0,
+      (GInstanceInitFunc) gst_tuner_norm_init,
+      NULL
+    };
+
+    gst_tuner_norm_type =
+	g_type_register_static (G_TYPE_OBJECT,
+				"GstTunerNorm",
+				&tuner_norm_info, 0);
+  }
+
+  return gst_tuner_norm_type;
+}
+
+static void
+gst_tuner_norm_class_init (GstTunerNormClass *klass)
+{
+  GObjectClass *object_klass = (GObjectClass *) klass;
+
+  parent_class = g_type_class_ref (G_TYPE_OBJECT);
+
+  object_klass->dispose = gst_tuner_norm_dispose;
+}
+
+static void
+gst_tuner_norm_init (GstTunerNorm *norm)
+{
+  norm->label = NULL;
+  norm->fps = 0.;
+}
+
+static void
+gst_tuner_norm_dispose (GObject *object)
+{
+  GstTunerNorm *norm = GST_TUNER_NORM (object);
+
+  if (norm->label)
+    g_free (norm->label);
+
+  if (parent_class->dispose)
+    parent_class->dispose (object);
+}
diff --git a/gst-libs/gst/tuner/tunernorm.h b/gst-libs/gst/tuner/tunernorm.h
new file mode 100644
index 00000000..3e6e801d
--- /dev/null
+++ b/gst-libs/gst/tuner/tunernorm.h
@@ -0,0 +1,55 @@
+/* GStreamer Tuner
+ * Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
+ *
+ * tunernorm.h: tuner norm object design
+ *
+ * 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., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __GST_TUNER_NORM_H__
+#define __GST_TUNER_NORM_H__
+
+#include <gst/gst.h>
+
+G_BEGIN_DECLS
+
+#define GST_TYPE_TUNER_NORM \
+  (gst_tuner_norm_get_type ())
+#define GST_TUNER_NORM(obj) \
+  (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_TUNER_NORM, GstTunerNorm))
+#define GST_TUNER_NORM_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_TUNER_NORM, GstTunerNormClass))
+#define GST_IS_TUNER_NORM(obj) \
+  (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_TUNER_NORM))
+#define GST_IS_TUNER_NORM_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_TUNER_NORM))
+
+typedef struct _GstTunerNorm {
+  GObject parent;
+
+  gchar  *label;
+  gfloat  fps;
+} GstTunerNorm;
+
+typedef struct _GstTunerNormClass {
+  GObjectClass parent;
+} GstTunerNormClass;
+
+GType		gst_tuner_norm_get_type		(void);
+
+G_END_DECLS
+
+#endif /* __GST_TUNER_NORM_H__ */