1 files changed, 117 insertions, 0 deletions
diff --git a/sys/v4l2/tunerchannel.c b/sys/v4l2/tunerchannel.c
new file mode 100755
index 0000000..6e45696
--- /dev/null
+++ b/sys/v4l2/tunerchannel.c
@@ -0,0 +1,117 @@
+/* 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., 51 Franklin St, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "tunerchannel.h"
+
+/**
+ * SECTION:gsttunerchannel
+ * @short_description: A channel from an element implementing the #GstTuner
+ * interface.
+ *
+ * <refsect2>
+ * <para>The #GstTunerChannel object is provided by an element implementing
+ * the #GstTuner interface.
+ * </para>
+ * <para>
+ * GstTunerChannel provides a name and flags to determine the type and
+ * capabilities of the channel. If the GST_TUNER_CHANNEL_FREQUENCY flag is
+ * set, then the channel also information about the minimum and maximum
+ * frequency, and range of the reported signal strength.
+ * </para>
+ * </refsect2>
+ */
+
+enum
+{
+  /* FILL ME */
+  SIGNAL_FREQUENCY_CHANGED,
+  SIGNAL_SIGNAL_CHANGED,
+  LAST_SIGNAL
+};
+
+G_DEFINE_TYPE (GstTunerChannel, gst_tuner_channel, G_TYPE_OBJECT);
+
+static void gst_tuner_channel_dispose (GObject * object);
+
+static guint signals[LAST_SIGNAL] = { 0 };
+
+static void
+gst_tuner_channel_class_init (GstTunerChannelClass * klass)
+{
+  GObjectClass *object_klass = (GObjectClass *) klass;
+
+  /**
+   * GstTunerChannel::frequency-changed:
+   * @tunerchannel: The #GstTunerChannel
+   * @frequency: The new frequency (an unsigned long)
+   *
+   * Reports that the current frequency has changed.
+   */
+  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);
+  /**
+   * GstTunerChannel::signal-changed:
+   * @tunerchannel: The #GstTunerChannel
+   * @signal: The new signal strength (an integer)
+   *
+   * Reports that the signal strength has changed.
+   *
+   * See Also: gst_tuner_signal_strength()
+   */
+  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);
+    channel->label = NULL;
+  }
+
+  G_OBJECT_CLASS (gst_tuner_channel_parent_class)->dispose (object);
+}