1 files changed, 235 insertions, 0 deletions
diff --git a/src/empathy-audio-sink.c b/src/empathy-audio-sink.c
new file mode 100644
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--- /dev/null
+++ b/src/empathy-audio-sink.c
@@ -0,0 +1,235 @@
+/*
+ * empathy-gst-audio-sink.c - Source for EmpathyGstAudioSink
+ * Copyright (C) 2008 Collabora Ltd.
+ * @author Sjoerd Simons <sjoerd.simons@collabora.co.uk>
+ *
+ * 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; either
+ * 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
+ */
+
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <gst/farsight/fs-element-added-notifier.h>
+
+#include "empathy-audio-sink.h"
+
+
+G_DEFINE_TYPE(EmpathyGstAudioSink, empathy_audio_sink, GST_TYPE_BIN)
+
+/* signal enum */
+#if 0
+enum
+{
+    LAST_SIGNAL
+};
+
+static guint signals[LAST_SIGNAL] = {0};
+#endif
+
+enum {
+  PROP_VOLUME = 1,
+};
+
+/* private structure */
+typedef struct _EmpathyGstAudioSinkPrivate EmpathyGstAudioSinkPrivate;
+
+struct _EmpathyGstAudioSinkPrivate
+{
+  gboolean dispose_has_run;
+  GstElement *sink;
+  GstElement *volume;
+  FsElementAddedNotifier *notifier;
+};
+
+#define EMPATHY_GST_AUDIO_SINK_GET_PRIVATE(o) \
+  (G_TYPE_INSTANCE_GET_PRIVATE ((o), EMPATHY_TYPE_GST_AUDIO_SINK, \
+  EmpathyGstAudioSinkPrivate))
+
+static void
+empathy_audio_sink_element_added_cb (FsElementAddedNotifier *notifier,
+  GstBin *bin, GstElement *element, EmpathyGstAudioSink *self)
+{
+  EmpathyGstAudioSinkPrivate *priv = EMPATHY_GST_AUDIO_SINK_GET_PRIVATE (self);
+
+  if (g_object_class_find_property (G_OBJECT_GET_CLASS (element), "volume"))
+    {
+      gdouble volume;
+
+      volume = empathy_audio_sink_get_volume (self);
+      empathy_audio_sink_set_volume (self, 1.0);
+
+      if (priv->volume != NULL)
+        g_object_unref (priv->volume);
+      priv->volume = g_object_ref (element);
+
+      if (volume != 1.0)
+        empathy_audio_sink_set_volume (self, volume);
+    }
+}
+
+static void
+empathy_audio_sink_init (EmpathyGstAudioSink *obj)
+{
+  EmpathyGstAudioSinkPrivate *priv = EMPATHY_GST_AUDIO_SINK_GET_PRIVATE (obj);
+  GstElement *resample;
+  GstPad *ghost, *sink;
+
+  priv->notifier = fs_element_added_notifier_new ();
+  g_signal_connect (priv->notifier, "element-added",
+    G_CALLBACK (empathy_audio_sink_element_added_cb), obj);
+
+  resample = gst_element_factory_make ("audioresample", NULL);
+
+  priv->volume = gst_element_factory_make ("volume", NULL);
+  g_object_ref (priv->volume);
+
+  priv->sink = gst_element_factory_make ("gconfaudiosink", NULL);
+
+  fs_element_added_notifier_add (priv->notifier, GST_BIN (priv->sink));
+
+  gst_bin_add_many (GST_BIN (obj), resample, priv->volume, priv->sink, NULL);
+  gst_element_link_many (resample, priv->volume, priv->sink, NULL);
+
+  sink = gst_element_get_static_pad (resample, "sink");
+
+  ghost = gst_ghost_pad_new ("sink", sink);
+  gst_element_add_pad (GST_ELEMENT (obj), ghost);
+
+  gst_object_unref (G_OBJECT (sink));
+}
+
+static void empathy_audio_sink_dispose (GObject *object);
+static void empathy_audio_sink_finalize (GObject *object);
+
+static void
+empathy_audio_sink_set_property (GObject *object,
+  guint property_id, const GValue *value, GParamSpec *pspec)
+{
+  switch (property_id)
+    {
+      case PROP_VOLUME:
+        empathy_audio_sink_set_volume (EMPATHY_GST_AUDIO_SINK (object),
+          g_value_get_double (value));
+        break;
+      default:
+        G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+    }
+}
+
+static void
+empathy_audio_sink_get_property (GObject *object,
+  guint property_id, GValue *value, GParamSpec *pspec)
+{
+  switch (property_id)
+    {
+      case PROP_VOLUME:
+        g_value_set_double (value,
+          empathy_audio_sink_get_volume (EMPATHY_GST_AUDIO_SINK (object)));
+        break;
+      default:
+        G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+    }
+}
+
+static void
+empathy_audio_sink_class_init (EmpathyGstAudioSinkClass
+  *empathy_audio_sink_class)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (empathy_audio_sink_class);
+  GParamSpec *param_spec;
+
+  g_type_class_add_private (empathy_audio_sink_class,
+    sizeof (EmpathyGstAudioSinkPrivate));
+
+  object_class->dispose = empathy_audio_sink_dispose;
+  object_class->finalize = empathy_audio_sink_finalize;
+
+  object_class->set_property = empathy_audio_sink_set_property;
+  object_class->get_property = empathy_audio_sink_get_property;
+
+  param_spec = g_param_spec_double ("volume", "Volume", "volume control",
+    0.0, 5.0, 1.0,
+    G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
+  g_object_class_install_property (object_class, PROP_VOLUME, param_spec);
+}
+
+void
+empathy_audio_sink_dispose (GObject *object)
+{
+  EmpathyGstAudioSink *self = EMPATHY_GST_AUDIO_SINK (object);
+  EmpathyGstAudioSinkPrivate *priv = EMPATHY_GST_AUDIO_SINK_GET_PRIVATE (self);
+
+  if (priv->dispose_has_run)
+    return;
+
+  priv->dispose_has_run = TRUE;
+
+  if (priv->notifier != NULL)
+    g_object_unref (priv->notifier);
+  priv->notifier = NULL;
+
+  if (priv->volume != NULL)
+    g_object_unref (priv->volume);
+  priv->volume = NULL;
+
+  if (G_OBJECT_CLASS (empathy_audio_sink_parent_class)->dispose)
+    G_OBJECT_CLASS (empathy_audio_sink_parent_class)->dispose (object);
+}
+
+void
+empathy_audio_sink_finalize (GObject *object)
+{
+  //EmpathyGstAudioSink *self = EMPATHY_GST_AUDIO_SINK (object);
+  //EmpathyGstAudioSinkPrivate *priv =
+  //  EMPATHY_GST_AUDIO_SINK_GET_PRIVATE (self);
+
+  /* free any data held directly by the object here */
+
+  G_OBJECT_CLASS (empathy_audio_sink_parent_class)->finalize (object);
+}
+
+GstElement *
+empathy_audio_sink_new (void)
+{
+  static gboolean registered = FALSE;
+
+  if (!registered) {
+    if (!gst_element_register (NULL, "empathyaudiosink",
+            GST_RANK_NONE, EMPATHY_TYPE_GST_AUDIO_SINK))
+      return NULL;
+    registered = TRUE;
+  }
+  return gst_element_factory_make ("empathyaudiosink", NULL);
+}
+
+void
+empathy_audio_sink_set_volume (EmpathyGstAudioSink *sink, gdouble volume)
+{
+  EmpathyGstAudioSinkPrivate *priv = EMPATHY_GST_AUDIO_SINK_GET_PRIVATE (sink);
+
+  g_object_set (G_OBJECT (priv->volume), "volume", volume, NULL);
+}
+
+gdouble
+empathy_audio_sink_get_volume (EmpathyGstAudioSink *sink)
+{
+  EmpathyGstAudioSinkPrivate *priv = EMPATHY_GST_AUDIO_SINK_GET_PRIVATE (sink);
+  gdouble volume;
+
+  g_object_get (G_OBJECT (priv->volume), "volume", &volume, NULL);
+
+  return volume;
+}