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!

1 files changed, 95 insertions, 0 deletions

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);
+}