2 * empathy-gst-audio-sink.c - Source for EmpathyGstAudioSink
3 * Copyright (C) 2008 Collabora Ltd.
4 * @author Sjoerd Simons <sjoerd.simons@collabora.co.uk>
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
25 #include <gst/farsight/fs-element-added-notifier.h>
27 #include "empathy-audio-sink.h"
30 G_DEFINE_TYPE(EmpathyGstAudioSink, empathy_audio_sink, GST_TYPE_BIN)
39 static guint signals[LAST_SIGNAL] = {0};
46 /* private structure */
47 typedef struct _EmpathyGstAudioSinkPrivate EmpathyGstAudioSinkPrivate;
49 struct _EmpathyGstAudioSinkPrivate
51 gboolean dispose_has_run;
54 FsElementAddedNotifier *notifier;
57 #define EMPATHY_GST_AUDIO_SINK_GET_PRIVATE(o) \
58 (G_TYPE_INSTANCE_GET_PRIVATE ((o), EMPATHY_TYPE_GST_AUDIO_SINK, \
59 EmpathyGstAudioSinkPrivate))
62 empathy_audio_sink_element_added_cb (FsElementAddedNotifier *notifier,
63 GstBin *bin, GstElement *element, EmpathyGstAudioSink *self)
65 EmpathyGstAudioSinkPrivate *priv = EMPATHY_GST_AUDIO_SINK_GET_PRIVATE (self);
67 if (g_object_class_find_property (G_OBJECT_CLASS (element), "volume"))
69 priv->volume = element;
74 empathy_audio_sink_init (EmpathyGstAudioSink *obj)
76 EmpathyGstAudioSinkPrivate *priv = EMPATHY_GST_AUDIO_SINK_GET_PRIVATE (obj);
80 priv->notifier = fs_element_added_notifier_new ();
81 g_signal_connect (priv->notifier, "element-added",
82 G_CALLBACK (empathy_audio_sink_element_added_cb), obj);
84 resample = gst_element_factory_make ("audioresample", NULL);
85 priv->volume = gst_element_factory_make ("volume", NULL);
86 priv->sink = gst_element_factory_make ("gconfaudiosink", NULL);
88 fs_element_added_notifier_add (priv->notifier, GST_BIN (priv->sink));
91 gst_bin_add_many (GST_BIN (obj), resample, priv->volume, priv->sink, NULL);
92 gst_element_link_many (resample, priv->volume, priv->sink, NULL);
94 sink = gst_element_get_static_pad (resample, "sink");
96 ghost = gst_ghost_pad_new ("sink", sink);
97 gst_element_add_pad (GST_ELEMENT (obj), ghost);
99 gst_object_unref (G_OBJECT (sink));
102 static void empathy_audio_sink_dispose (GObject *object);
103 static void empathy_audio_sink_finalize (GObject *object);
106 empathy_audio_sink_set_property (GObject *object,
107 guint property_id, const GValue *value, GParamSpec *pspec)
112 empathy_audio_sink_set_volume (EMPATHY_GST_AUDIO_SINK (object),
113 g_value_get_double (value));
116 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
121 empathy_audio_sink_get_property (GObject *object,
122 guint property_id, GValue *value, GParamSpec *pspec)
127 g_value_set_double (value,
128 empathy_audio_sink_get_volume (EMPATHY_GST_AUDIO_SINK (object)));
131 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
138 empathy_audio_sink_class_init (EmpathyGstAudioSinkClass
139 *empathy_audio_sink_class)
141 GObjectClass *object_class = G_OBJECT_CLASS (empathy_audio_sink_class);
142 GParamSpec *param_spec;
144 g_type_class_add_private (empathy_audio_sink_class,
145 sizeof (EmpathyGstAudioSinkPrivate));
147 object_class->dispose = empathy_audio_sink_dispose;
148 object_class->finalize = empathy_audio_sink_finalize;
150 object_class->set_property = empathy_audio_sink_set_property;
151 object_class->get_property = empathy_audio_sink_get_property;
153 param_spec = g_param_spec_double ("volume", "Volume", "volume factory",
155 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
156 g_object_class_install_property (object_class, PROP_VOLUME, param_spec);
160 empathy_audio_sink_dispose (GObject *object)
162 EmpathyGstAudioSink *self = EMPATHY_GST_AUDIO_SINK (object);
163 EmpathyGstAudioSinkPrivate *priv = EMPATHY_GST_AUDIO_SINK_GET_PRIVATE (self);
165 if (priv->dispose_has_run)
168 priv->dispose_has_run = TRUE;
170 if (priv->notifier != NULL)
171 g_object_unref (priv->notifier);
172 priv->notifier = NULL;
175 if (G_OBJECT_CLASS (empathy_audio_sink_parent_class)->dispose)
176 G_OBJECT_CLASS (empathy_audio_sink_parent_class)->dispose (object);
180 empathy_audio_sink_finalize (GObject *object)
182 //EmpathyGstAudioSink *self = EMPATHY_GST_AUDIO_SINK (object);
183 //EmpathyGstAudioSinkPrivate *priv =
184 // EMPATHY_GST_AUDIO_SINK_GET_PRIVATE (self);
186 /* free any data held directly by the object here */
188 G_OBJECT_CLASS (empathy_audio_sink_parent_class)->finalize (object);
192 empathy_audio_sink_new (void)
194 return GST_ELEMENT (g_object_new (EMPATHY_TYPE_GST_AUDIO_SINK, NULL));
198 empathy_audio_sink_set_volume (EmpathyGstAudioSink *sink, gdouble volume)
200 EmpathyGstAudioSinkPrivate *priv = EMPATHY_GST_AUDIO_SINK_GET_PRIVATE (sink);
202 g_object_set (G_OBJECT (priv->volume), "volume", volume, NULL);
206 empathy_audio_sink_get_volume (EmpathyGstAudioSink *sink)
208 EmpathyGstAudioSinkPrivate *priv = EMPATHY_GST_AUDIO_SINK_GET_PRIVATE (sink);
211 g_object_get (G_OBJECT (priv->volume), "volume", &volume, NULL);