2 * empathy-gst-audio-src.c - Source for EmpathyGstAudioSrc
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 <libempathy/empathy-utils.h>
26 #include <libempathy-gtk/empathy-call-utils.h>
28 #include "empathy-audio-src.h"
30 #include "src-marshal.h"
31 #include "empathy-mic-monitor.h"
33 #define DEBUG_FLAG EMPATHY_DEBUG_VOIP
34 #include <libempathy/empathy-debug.h>
36 G_DEFINE_TYPE(EmpathyGstAudioSrc, empathy_audio_src, GST_TYPE_BIN)
46 static guint signals[LAST_SIGNAL] = {0};
55 /* private structure */
56 typedef struct _EmpathyGstAudioSrcPrivate EmpathyGstAudioSrcPrivate;
58 struct _EmpathyGstAudioSrcPrivate
60 gboolean dispose_has_run;
65 EmpathyMicMonitor *mic_monitor;
67 /* 0 if not known yet */
68 guint source_output_idx;
69 /* G_MAXUINT if not known yet */
79 #define EMPATHY_GST_AUDIO_SRC_GET_PRIVATE(o) \
80 (G_TYPE_INSTANCE_GET_PRIVATE ((o), EMPATHY_TYPE_GST_AUDIO_SRC, \
81 EmpathyGstAudioSrcPrivate))
84 empathy_audio_src_supports_changing_mic (EmpathyGstAudioSrc *self)
86 EmpathyGstAudioSrcPrivate *priv = EMPATHY_GST_AUDIO_SRC_GET_PRIVATE (self);
87 GObjectClass *object_class;
89 object_class = G_OBJECT_GET_CLASS (priv->src);
91 return (g_object_class_find_property (object_class,
92 "source-output-index") != NULL);
96 empathy_audio_src_microphone_changed_cb (EmpathyMicMonitor *monitor,
97 guint source_output_idx,
101 EmpathyGstAudioSrc *self = user_data;
102 EmpathyGstAudioSrcPrivate *priv = EMPATHY_GST_AUDIO_SRC_GET_PRIVATE (self);
103 guint audio_src_idx = PA_INVALID_INDEX;
105 g_object_get (priv->src, "source-output-index", &audio_src_idx, NULL);
107 if (source_output_idx == PA_INVALID_INDEX
108 || source_output_idx != audio_src_idx)
111 if (priv->source_idx == source_idx)
114 priv->source_idx = source_idx;
115 g_object_notify (G_OBJECT (self), "microphone");
119 empathy_audio_src_get_current_mic_cb (GObject *source_object,
120 GAsyncResult *result,
123 EmpathyMicMonitor *monitor = EMPATHY_MIC_MONITOR (source_object);
124 EmpathyGstAudioSrc *self = user_data;
125 EmpathyGstAudioSrcPrivate *priv = EMPATHY_GST_AUDIO_SRC_GET_PRIVATE (self);
127 GError *error = NULL;
129 source_idx = empathy_mic_monitor_get_current_mic_finish (monitor, result, &error);
133 DEBUG ("Failed to get current mic: %s", error->message);
134 g_clear_error (&error);
138 if (priv->source_idx == source_idx)
141 priv->source_idx = source_idx;
142 g_object_notify (G_OBJECT (self), "microphone");
146 empathy_audio_src_source_output_index_notify (GObject *object,
148 EmpathyGstAudioSrc *self)
150 EmpathyGstAudioSrcPrivate *priv = EMPATHY_GST_AUDIO_SRC_GET_PRIVATE (self);
151 guint source_output_idx = PA_INVALID_INDEX;
153 g_object_get (priv->src, "source-output-index", &source_output_idx, NULL);
155 if (source_output_idx == PA_INVALID_INDEX)
158 if (priv->source_output_idx == source_output_idx)
161 /* It's actually changed. */
162 priv->source_output_idx = source_output_idx;
164 empathy_mic_monitor_get_current_mic_async (priv->mic_monitor,
165 source_output_idx, empathy_audio_src_get_current_mic_cb, self);
172 const gchar *description;
174 description = g_getenv ("EMPATHY_AUDIO_SRC");
176 if (description != NULL)
178 GError *error = NULL;
180 src = gst_parse_bin_from_description (description, TRUE, &error);
183 DEBUG ("Failed to create bin %s: %s", description, error->message);
184 g_error_free (error);
190 /* Use pulsesrc as default */
191 src = gst_element_factory_make ("pulsesrc", NULL);
195 empathy_call_set_stream_properties (src);
201 empathy_audio_src_init (EmpathyGstAudioSrc *obj)
203 EmpathyGstAudioSrcPrivate *priv = EMPATHY_GST_AUDIO_SRC_GET_PRIVATE (obj);
206 priv->peak_level = -G_MAXDOUBLE;
207 priv->lock = g_mutex_new ();
209 priv->src = create_src ();
210 if (priv->src == NULL)
213 gst_bin_add (GST_BIN (obj), priv->src);
215 priv->volume = gst_element_factory_make ("volume", NULL);
216 g_object_ref (priv->volume);
218 gst_bin_add (GST_BIN (obj), priv->volume);
219 gst_element_link (priv->src, priv->volume);
221 priv->level = gst_element_factory_make ("level", NULL);
222 gst_bin_add (GST_BIN (obj), priv->level);
223 gst_element_link (priv->volume, priv->level);
225 src = gst_element_get_static_pad (priv->level, "src");
227 ghost = gst_ghost_pad_new ("src", src);
228 gst_element_add_pad (GST_ELEMENT (obj), ghost);
230 gst_object_unref (G_OBJECT (src));
232 /* Listen to changes to GstPulseSrc:source-output-index so we know when
233 * it's no longer PA_INVALID_INDEX (starting for the first time) or if it
234 * changes (READY->NULL->READY...) */
235 g_signal_connect (priv->src, "notify::source-output-index",
236 G_CALLBACK (empathy_audio_src_source_output_index_notify),
239 priv->mic_monitor = empathy_mic_monitor_new ();
240 g_signal_connect (priv->mic_monitor, "microphone-changed",
241 G_CALLBACK (empathy_audio_src_microphone_changed_cb), obj);
243 priv->source_idx = PA_INVALID_INDEX;
246 static void empathy_audio_src_dispose (GObject *object);
247 static void empathy_audio_src_finalize (GObject *object);
248 static void empathy_audio_src_handle_message (GstBin *bin,
249 GstMessage *message);
251 static gboolean empathy_audio_src_levels_updated (gpointer user_data);
254 empathy_audio_src_set_property (GObject *object,
255 guint property_id, const GValue *value, GParamSpec *pspec)
260 empathy_audio_src_set_volume (EMPATHY_GST_AUDIO_SRC (object),
261 g_value_get_double (value));
264 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
269 empathy_audio_src_get_property (GObject *object,
270 guint property_id, GValue *value, GParamSpec *pspec)
272 EmpathyGstAudioSrc *self = EMPATHY_GST_AUDIO_SRC (object);
273 EmpathyGstAudioSrcPrivate *priv = EMPATHY_GST_AUDIO_SRC_GET_PRIVATE (self);
278 g_value_set_double (value,
279 empathy_audio_src_get_volume (self));
281 case PROP_PEAK_LEVEL:
282 g_mutex_lock (priv->lock);
283 g_value_set_double (value, priv->peak_level);
284 g_mutex_unlock (priv->lock);
287 g_mutex_lock (priv->lock);
288 g_value_set_double (value, priv->rms_level);
289 g_mutex_unlock (priv->lock);
291 case PROP_MICROPHONE:
292 g_value_set_uint (value, priv->source_idx);
295 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
300 empathy_audio_src_class_init (EmpathyGstAudioSrcClass
301 *empathy_audio_src_class)
303 GObjectClass *object_class = G_OBJECT_CLASS (empathy_audio_src_class);
304 GstBinClass *gstbin_class = GST_BIN_CLASS (empathy_audio_src_class);
305 GParamSpec *param_spec;
307 g_type_class_add_private (empathy_audio_src_class,
308 sizeof (EmpathyGstAudioSrcPrivate));
310 object_class->dispose = empathy_audio_src_dispose;
311 object_class->finalize = empathy_audio_src_finalize;
313 object_class->set_property = empathy_audio_src_set_property;
314 object_class->get_property = empathy_audio_src_get_property;
316 gstbin_class->handle_message =
317 GST_DEBUG_FUNCPTR (empathy_audio_src_handle_message);
319 param_spec = g_param_spec_double ("volume", "Volume", "volume contol",
321 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
322 g_object_class_install_property (object_class, PROP_VOLUME, param_spec);
324 param_spec = g_param_spec_double ("peak-level", "peak level", "peak level",
325 -G_MAXDOUBLE, G_MAXDOUBLE, 0,
326 G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
327 g_object_class_install_property (object_class, PROP_PEAK_LEVEL, param_spec);
329 param_spec = g_param_spec_uint ("microphone", "microphone", "microphone",
330 0, G_MAXUINT, G_MAXUINT,
331 G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
332 g_object_class_install_property (object_class, PROP_MICROPHONE, param_spec);
334 signals[PEAK_LEVEL_CHANGED] = g_signal_new ("peak-level-changed",
335 G_TYPE_FROM_CLASS (empathy_audio_src_class),
339 g_cclosure_marshal_VOID__DOUBLE,
340 G_TYPE_NONE, 1, G_TYPE_DOUBLE);
342 param_spec = g_param_spec_double ("rms-level", "RMS level", "RMS level",
343 -G_MAXDOUBLE, G_MAXDOUBLE, 0,
344 G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
345 g_object_class_install_property (object_class, PROP_RMS_LEVEL, param_spec);
347 signals[RMS_LEVEL_CHANGED] = g_signal_new ("rms-level-changed",
348 G_TYPE_FROM_CLASS (empathy_audio_src_class),
352 g_cclosure_marshal_VOID__DOUBLE,
353 G_TYPE_NONE, 1, G_TYPE_DOUBLE);
357 empathy_audio_src_dispose (GObject *object)
359 EmpathyGstAudioSrc *self = EMPATHY_GST_AUDIO_SRC (object);
360 EmpathyGstAudioSrcPrivate *priv = EMPATHY_GST_AUDIO_SRC_GET_PRIVATE (self);
362 if (priv->dispose_has_run)
365 priv->dispose_has_run = TRUE;
367 if (priv->idle_id != 0)
368 g_source_remove (priv->idle_id);
372 tp_clear_object (&priv->mic_monitor);
374 /* release any references held by the object here */
376 if (G_OBJECT_CLASS (empathy_audio_src_parent_class)->dispose)
377 G_OBJECT_CLASS (empathy_audio_src_parent_class)->dispose (object);
381 empathy_audio_src_finalize (GObject *object)
383 EmpathyGstAudioSrc *self = EMPATHY_GST_AUDIO_SRC (object);
384 EmpathyGstAudioSrcPrivate *priv = EMPATHY_GST_AUDIO_SRC_GET_PRIVATE (self);
386 /* free any data held directly by the object here */
387 g_mutex_free (priv->lock);
389 G_OBJECT_CLASS (empathy_audio_src_parent_class)->finalize (object);
393 empathy_audio_src_levels_updated (gpointer user_data)
395 EmpathyGstAudioSrc *self = EMPATHY_GST_AUDIO_SRC (user_data);
396 EmpathyGstAudioSrcPrivate *priv = EMPATHY_GST_AUDIO_SRC_GET_PRIVATE (self);
398 g_mutex_lock (priv->lock);
400 g_signal_emit (self, signals[PEAK_LEVEL_CHANGED], 0, priv->peak_level);
401 g_signal_emit (self, signals[RMS_LEVEL_CHANGED], 0, priv->rms_level);
404 g_mutex_unlock (priv->lock);
410 empathy_audio_src_handle_message (GstBin *bin, GstMessage *message)
412 EmpathyGstAudioSrc *self = EMPATHY_GST_AUDIO_SRC (bin);
413 EmpathyGstAudioSrcPrivate *priv = EMPATHY_GST_AUDIO_SRC_GET_PRIVATE (self);
415 if (GST_MESSAGE_TYPE (message) == GST_MESSAGE_ELEMENT &&
416 GST_MESSAGE_SRC (message) == GST_OBJECT (priv->level))
418 const GstStructure *s;
422 gdouble peak = -G_MAXDOUBLE;
423 gdouble rms = -G_MAXDOUBLE;
425 s = gst_message_get_structure (message);
426 name = gst_structure_get_name (s);
428 if (g_strcmp0 ("level", name) != 0)
431 list = gst_structure_get_value (s, "peak");
432 len = gst_value_list_get_size (list);
434 for (i =0 ; i < len; i++)
439 value = gst_value_list_get_value (list, i);
440 db = g_value_get_double (value);
441 peak = MAX (db, peak);
444 list = gst_structure_get_value (s, "rms");
445 len = gst_value_list_get_size (list);
447 for (i =0 ; i < len; i++)
452 value = gst_value_list_get_value (list, i);
453 db = g_value_get_double (value);
457 g_mutex_lock (priv->lock);
459 priv->peak_level = peak;
460 priv->rms_level = rms;
461 if (priv->idle_id == 0)
462 priv->idle_id = g_idle_add (empathy_audio_src_levels_updated, self);
464 g_mutex_unlock (priv->lock);
468 GST_BIN_CLASS (empathy_audio_src_parent_class)->handle_message (bin,
473 empathy_audio_src_new (void)
475 static gboolean registered = FALSE;
478 if (!gst_element_register (NULL, "empathyaudiosrc",
479 GST_RANK_NONE, EMPATHY_TYPE_GST_AUDIO_SRC))
483 return gst_element_factory_make ("empathyaudiosrc", NULL);
487 empathy_audio_src_set_volume (EmpathyGstAudioSrc *src, gdouble volume)
489 EmpathyGstAudioSrcPrivate *priv = EMPATHY_GST_AUDIO_SRC_GET_PRIVATE (src);
491 GParamSpecDouble *pspec_double;
493 pspec = g_object_class_find_property (G_OBJECT_GET_CLASS (priv->volume),
496 g_assert (pspec != NULL);
498 pspec_double = G_PARAM_SPEC_DOUBLE (pspec);
500 volume = CLAMP (volume, pspec_double->minimum, pspec_double->maximum);
502 g_object_set (G_OBJECT (priv->volume), "volume", volume, NULL);
506 empathy_audio_src_get_volume (EmpathyGstAudioSrc *src)
508 EmpathyGstAudioSrcPrivate *priv = EMPATHY_GST_AUDIO_SRC_GET_PRIVATE (src);
511 g_object_get (G_OBJECT (priv->volume), "volume", &volume, NULL);
517 empathy_audio_src_get_microphone (EmpathyGstAudioSrc *src)
519 EmpathyGstAudioSrcPrivate *priv = EMPATHY_GST_AUDIO_SRC_GET_PRIVATE (src);
521 return priv->source_idx;
525 empathy_audio_src_change_microphone_cb (GObject *source_object,
526 GAsyncResult *result,
529 EmpathyMicMonitor *monitor = EMPATHY_MIC_MONITOR (source_object);
530 GSimpleAsyncResult *simple = user_data;
531 GError *error = NULL;
533 if (!empathy_mic_monitor_change_microphone_finish (monitor,
536 g_simple_async_result_take_error (simple, error);
539 g_simple_async_result_complete (simple);
540 g_object_unref (simple);
544 empathy_audio_src_change_microphone_async (EmpathyGstAudioSrc *src,
546 GAsyncReadyCallback callback,
549 EmpathyGstAudioSrcPrivate *priv = EMPATHY_GST_AUDIO_SRC_GET_PRIVATE (src);
550 guint source_output_idx;
551 GSimpleAsyncResult *simple;
553 simple = g_simple_async_result_new (G_OBJECT (src), callback, user_data,
554 empathy_audio_src_change_microphone_async);
556 if (!empathy_audio_src_supports_changing_mic (src))
558 g_simple_async_result_set_error (simple, G_IO_ERROR, G_IO_ERROR_FAILED,
559 "pulsesrc is not new enough to support changing microphone");
560 g_simple_async_result_complete_in_idle (simple);
561 g_object_unref (simple);
565 g_object_get (priv->src, "source-output-index", &source_output_idx, NULL);
567 if (source_output_idx == PA_INVALID_INDEX)
569 g_simple_async_result_set_error (simple, G_IO_ERROR, G_IO_ERROR_FAILED,
570 "pulsesrc is not yet PLAYING");
571 g_simple_async_result_complete_in_idle (simple);
572 g_object_unref (simple);
576 empathy_mic_monitor_change_microphone_async (priv->mic_monitor,
577 source_output_idx, microphone, empathy_audio_src_change_microphone_cb,
582 empathy_audio_src_change_microphone_finish (EmpathyGstAudioSrc *src,
583 GAsyncResult *result,
586 empathy_implement_finish_void (src,
587 empathy_audio_src_change_microphone_async);