2 * (c) 2005 Ronald S. Bultje <rbultje@ronald.bitfreak.net>
3 * (c) 2006 Jürg Billeter <j@bitron.ch>
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
15 * You should have received a copy of the GNU Library General Public
16 * License along with this library; if not, write to the
17 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 * Boston, MA 02111-1307, USA.
21 * SECTION:element-gconfaudiosink
23 * This element outputs sound to the audiosink that has been configured in
27 * <title>Example launch line</title>
29 * gst-launch filesrc location=foo.ogg ! decodebin ! audioconvert ! audioresample ! gconfaudiosink
30 * ]| Play on configured audiosink
40 #include "gstgconfelements.h"
41 #include "gstgconfaudiosink.h"
43 static void gst_gconf_audio_sink_dispose (GObject * object);
44 static void gst_gconf_audio_sink_finalize (GstGConfAudioSink * sink);
45 static void cb_change_child (GConfClient * client,
46 guint connection_id, GConfEntry * entry, gpointer data);
47 static GstStateChangeReturn
48 gst_gconf_audio_sink_change_state (GstElement * element,
49 GstStateChange transition);
50 static void gst_gconf_switch_profile (GstGConfAudioSink * sink,
51 GstGConfProfile profile);
59 GST_BOILERPLATE (GstGConfAudioSink, gst_gconf_audio_sink, GstSwitchSink,
60 GST_TYPE_SWITCH_SINK);
62 static void gst_gconf_audio_sink_set_property (GObject * object, guint prop_id,
63 const GValue * value, GParamSpec * pspec);
64 static void gst_gconf_audio_sink_get_property (GObject * object, guint prop_id,
65 GValue * value, GParamSpec * pspec);
68 gst_gconf_audio_sink_base_init (gpointer klass)
70 GstElementClass *eklass = GST_ELEMENT_CLASS (klass);
72 gst_element_class_set_details_simple (eklass, "GConf audio sink",
74 "Audio sink embedding the GConf-settings for audio output",
75 "Jan Schmidt <thaytan@mad.scientist.com>");
78 #define GST_TYPE_GCONF_PROFILE (gst_gconf_profile_get_type())
80 gst_gconf_profile_get_type (void)
82 static GType gconf_profile_type = 0;
83 static const GEnumValue gconf_profiles[] = {
84 {GCONF_PROFILE_SOUNDS, "Sound Events", "sounds"},
85 {GCONF_PROFILE_MUSIC, "Music and Movies", "music"},
86 {GCONF_PROFILE_CHAT, "Audio/Video Conferencing", "chat"},
90 if (!gconf_profile_type) {
92 g_enum_register_static ("GstGConfProfile", gconf_profiles);
94 return gconf_profile_type;
98 gst_gconf_audio_sink_class_init (GstGConfAudioSinkClass * klass)
100 GObjectClass *oklass = G_OBJECT_CLASS (klass);
101 GstElementClass *eklass = GST_ELEMENT_CLASS (klass);
103 oklass->set_property = gst_gconf_audio_sink_set_property;
104 oklass->get_property = gst_gconf_audio_sink_get_property;
105 oklass->dispose = gst_gconf_audio_sink_dispose;
106 oklass->finalize = (GObjectFinalizeFunc) gst_gconf_audio_sink_finalize;
107 eklass->change_state = gst_gconf_audio_sink_change_state;
109 g_object_class_install_property (oklass, PROP_PROFILE,
110 g_param_spec_enum ("profile", "Profile", "Profile",
111 GST_TYPE_GCONF_PROFILE, GCONF_PROFILE_SOUNDS,
112 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
116 gst_gconf_audio_sink_reset (GstGConfAudioSink * sink)
118 gst_switch_sink_set_child (GST_SWITCH_SINK (sink), NULL);
120 g_free (sink->gconf_str);
121 sink->gconf_str = NULL;
125 gst_gconf_audio_sink_init (GstGConfAudioSink * sink,
126 GstGConfAudioSinkClass * g_class)
128 gst_gconf_audio_sink_reset (sink);
130 sink->client = gconf_client_get_default ();
131 gconf_client_add_dir (sink->client, GST_GCONF_DIR "/default",
132 GCONF_CLIENT_PRELOAD_RECURSIVE, NULL);
134 gst_gconf_switch_profile (sink, GCONF_PROFILE_SOUNDS);
138 gst_gconf_audio_sink_dispose (GObject * object)
140 GstGConfAudioSink *sink = GST_GCONF_AUDIO_SINK (object);
143 gst_gconf_switch_profile (sink, GCONF_PROFILE_NONE);
144 g_object_unref (G_OBJECT (sink->client));
148 GST_CALL_PARENT (G_OBJECT_CLASS, dispose, (object));
152 gst_gconf_audio_sink_finalize (GstGConfAudioSink * sink)
154 g_free (sink->gconf_str);
156 GST_CALL_PARENT (G_OBJECT_CLASS, finalize, ((GObject *) (sink)));
160 do_change_child (GstGConfAudioSink * sink)
163 gchar *new_gconf_str;
166 if (sink->profile == GCONF_PROFILE_NONE)
167 return FALSE; /* Can't switch to a 'NONE' sink */
169 key = gst_gconf_get_key_for_sink_profile (sink->profile);
170 new_gconf_str = gst_gconf_get_string (key);
172 GST_LOG_OBJECT (sink, "old gconf string: %s", GST_STR_NULL (sink->gconf_str));
173 GST_LOG_OBJECT (sink, "new gconf string: %s", GST_STR_NULL (new_gconf_str));
175 if (new_gconf_str != NULL && sink->gconf_str != NULL &&
176 (strlen (new_gconf_str) == 0 ||
177 strcmp (sink->gconf_str, new_gconf_str) == 0)) {
178 g_free (new_gconf_str);
179 GST_DEBUG_OBJECT (sink,
180 "GConf key was updated, but it didn't change. Ignoring");
184 GST_DEBUG_OBJECT (sink, "GConf key changed: '%s' to '%s'",
185 GST_STR_NULL (sink->gconf_str), GST_STR_NULL (new_gconf_str));
187 GST_DEBUG_OBJECT (sink, "Creating new child for profile %d", sink->profile);
189 gst_gconf_render_bin_with_default (new_gconf_str, DEFAULT_AUDIOSINK);
191 if (new_kid == NULL) {
192 GST_ELEMENT_ERROR (sink, LIBRARY, SETTINGS, (NULL),
193 ("Failed to render audio sink from GConf"));
197 if (!gst_switch_sink_set_child (GST_SWITCH_SINK (sink), new_kid)) {
198 GST_WARNING_OBJECT (sink, "Failed to update child element");
202 g_free (sink->gconf_str);
203 sink->gconf_str = new_gconf_str;
205 GST_DEBUG_OBJECT (sink, "done changing gconf audio sink");
210 g_free (new_gconf_str);
215 gst_gconf_switch_profile (GstGConfAudioSink * sink, GstGConfProfile profile)
217 if (sink->client == NULL)
220 if (sink->notify_id) {
221 GST_DEBUG_OBJECT (sink, "Unsubscribing old key %s for profile %d",
222 gst_gconf_get_key_for_sink_profile (sink->profile), sink->profile);
223 gconf_client_notify_remove (sink->client, sink->notify_id);
227 sink->profile = profile;
228 if (profile != GCONF_PROFILE_NONE) {
229 const gchar *key = gst_gconf_get_key_for_sink_profile (sink->profile);
231 GST_DEBUG_OBJECT (sink, "Subscribing to key %s for profile %d",
233 sink->notify_id = gconf_client_notify_add (sink->client, key,
234 cb_change_child, sink, NULL, NULL);
239 gst_gconf_audio_sink_set_property (GObject * object, guint prop_id,
240 const GValue * value, GParamSpec * pspec)
242 GstGConfAudioSink *sink;
244 sink = GST_GCONF_AUDIO_SINK (object);
248 gst_gconf_switch_profile (sink, g_value_get_enum (value));
256 gst_gconf_audio_sink_get_property (GObject * object, guint prop_id,
257 GValue * value, GParamSpec * pspec)
259 GstGConfAudioSink *sink;
261 sink = GST_GCONF_AUDIO_SINK (object);
265 g_value_set_enum (value, sink->profile);
268 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
274 cb_change_child (GConfClient * client,
275 guint connection_id, GConfEntry * entry, gpointer data)
277 do_change_child (GST_GCONF_AUDIO_SINK (data));
280 static GstStateChangeReturn
281 gst_gconf_audio_sink_change_state (GstElement * element,
282 GstStateChange transition)
284 GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
285 GstGConfAudioSink *sink = GST_GCONF_AUDIO_SINK (element);
287 switch (transition) {
288 case GST_STATE_CHANGE_NULL_TO_READY:
289 if (!do_change_child (sink)) {
290 gst_gconf_audio_sink_reset (sink);
291 return GST_STATE_CHANGE_FAILURE;
298 ret = GST_CALL_PARENT_WITH_DEFAULT (GST_ELEMENT_CLASS, change_state,
299 (element, transition), GST_STATE_CHANGE_SUCCESS);
301 switch (transition) {
302 case GST_STATE_CHANGE_READY_TO_NULL:
303 gst_gconf_audio_sink_reset (sink);