diff options
Diffstat (limited to 'libempathy-gtk/empathy-audio-src.c')
| -rw-r--r-- | libempathy-gtk/empathy-audio-src.c | 387 |
1 files changed, 0 insertions, 387 deletions
diff --git a/libempathy-gtk/empathy-audio-src.c b/libempathy-gtk/empathy-audio-src.c deleted file mode 100644 index a3416f2ea..000000000 --- a/libempathy-gtk/empathy-audio-src.c +++ /dev/null @@ -1,387 +0,0 @@ -/* - * empathy-gst-audio-src.c - Source for EmpathyGstAudioSrc - * 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-src.h" - -G_DEFINE_TYPE(EmpathyGstAudioSrc, empathy_audio_src, GST_TYPE_BIN) - -/* signal enum */ -enum -{ - PEAK_LEVEL_CHANGED, - RMS_LEVEL_CHANGED, - LAST_SIGNAL -}; - -static guint signals[LAST_SIGNAL] = {0}; - -enum { - PROP_VOLUME = 1, - PROP_RMS_LEVEL, - PROP_PEAK_LEVEL, -}; - -/* private structure */ -typedef struct _EmpathyGstAudioSrcPrivate EmpathyGstAudioSrcPrivate; - -struct _EmpathyGstAudioSrcPrivate -{ - gboolean dispose_has_run; - GstElement *src; - GstElement *volume; - GstElement *level; - FsElementAddedNotifier *notifier; - - gdouble peak_level; - gdouble rms_level; - - GMutex *lock; - guint idle_id; -}; - -#define EMPATHY_GST_AUDIO_SRC_GET_PRIVATE(o) \ - (G_TYPE_INSTANCE_GET_PRIVATE ((o), EMPATHY_TYPE_GST_AUDIO_SRC, \ - EmpathyGstAudioSrcPrivate)) - -static void -empathy_audio_src_element_added_cb (FsElementAddedNotifier *notifier, - GstBin *bin, GstElement *element, EmpathyGstAudioSrc *self) -{ - EmpathyGstAudioSrcPrivate *priv = EMPATHY_GST_AUDIO_SRC_GET_PRIVATE (self); - - if (g_object_class_find_property (G_OBJECT_GET_CLASS (element), "volume")) - { - gdouble volume; - - volume = empathy_audio_src_get_volume (self); - empathy_audio_src_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_src_set_volume (self, volume); - } -} - -static void -empathy_audio_src_init (EmpathyGstAudioSrc *obj) -{ - EmpathyGstAudioSrcPrivate *priv = EMPATHY_GST_AUDIO_SRC_GET_PRIVATE (obj); - GstPad *ghost, *src; - - priv->peak_level = -G_MAXDOUBLE; - priv->lock = g_mutex_new (); - - priv->notifier = fs_element_added_notifier_new (); - g_signal_connect (priv->notifier, "element-added", - G_CALLBACK (empathy_audio_src_element_added_cb), obj); - - priv->src = gst_element_factory_make ("gconfaudiosrc", NULL); - gst_bin_add (GST_BIN (obj), priv->src); - - fs_element_added_notifier_add (priv->notifier, GST_BIN (priv->src)); - - priv->volume = gst_element_factory_make ("volume", NULL); - g_object_ref (priv->volume); - - gst_bin_add (GST_BIN (obj), priv->volume); - gst_element_link (priv->src, priv->volume); - - priv->level = gst_element_factory_make ("level", NULL); - gst_bin_add (GST_BIN (obj), priv->level); - gst_element_link (priv->volume, priv->level); - - src = gst_element_get_static_pad (priv->level, "src"); - - ghost = gst_ghost_pad_new ("src", src); - gst_element_add_pad (GST_ELEMENT (obj), ghost); - - gst_object_unref (G_OBJECT (src)); -} - -static void empathy_audio_src_dispose (GObject *object); -static void empathy_audio_src_finalize (GObject *object); -static void empathy_audio_src_handle_message (GstBin *bin, - GstMessage *message); - -static gboolean empathy_audio_src_levels_updated (gpointer user_data); - -static void -empathy_audio_src_set_property (GObject *object, - guint property_id, const GValue *value, GParamSpec *pspec) -{ - switch (property_id) - { - case PROP_VOLUME: - empathy_audio_src_set_volume (EMPATHY_GST_AUDIO_SRC (object), - g_value_get_double (value)); - break; - default: - G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); - } -} - -static void -empathy_audio_src_get_property (GObject *object, - guint property_id, GValue *value, GParamSpec *pspec) -{ - EmpathyGstAudioSrc *self = EMPATHY_GST_AUDIO_SRC (object); - EmpathyGstAudioSrcPrivate *priv = EMPATHY_GST_AUDIO_SRC_GET_PRIVATE (self); - - switch (property_id) - { - case PROP_VOLUME: - g_value_set_double (value, - empathy_audio_src_get_volume (self)); - break; - case PROP_PEAK_LEVEL: - g_mutex_lock (priv->lock); - g_value_set_double (value, priv->peak_level); - g_mutex_unlock (priv->lock); - break; - case PROP_RMS_LEVEL: - g_mutex_lock (priv->lock); - g_value_set_double (value, priv->rms_level); - g_mutex_unlock (priv->lock); - break; - default: - G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); - } -} - -static void -empathy_audio_src_class_init (EmpathyGstAudioSrcClass - *empathy_audio_src_class) -{ - GObjectClass *object_class = G_OBJECT_CLASS (empathy_audio_src_class); - GstBinClass *gstbin_class = GST_BIN_CLASS (empathy_audio_src_class); - GParamSpec *param_spec; - - g_type_class_add_private (empathy_audio_src_class, - sizeof (EmpathyGstAudioSrcPrivate)); - - object_class->dispose = empathy_audio_src_dispose; - object_class->finalize = empathy_audio_src_finalize; - - object_class->set_property = empathy_audio_src_set_property; - object_class->get_property = empathy_audio_src_get_property; - - gstbin_class->handle_message = - GST_DEBUG_FUNCPTR (empathy_audio_src_handle_message); - - param_spec = g_param_spec_double ("volume", "Volume", "volume contol", - 0.0, 5.0, 1.0, - G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS); - g_object_class_install_property (object_class, PROP_VOLUME, param_spec); - - param_spec = g_param_spec_double ("peak-level", "peak level", "peak level", - -G_MAXDOUBLE, G_MAXDOUBLE, 0, - G_PARAM_READABLE | G_PARAM_STATIC_STRINGS); - g_object_class_install_property (object_class, PROP_VOLUME, param_spec); - - signals[PEAK_LEVEL_CHANGED] = g_signal_new ("peak-level-changed", - G_TYPE_FROM_CLASS (empathy_audio_src_class), - G_SIGNAL_RUN_LAST, - 0, - NULL, NULL, - g_cclosure_marshal_VOID__DOUBLE, - G_TYPE_NONE, 1, G_TYPE_DOUBLE); - - param_spec = g_param_spec_double ("rms-level", "RMS level", "RMS level", - -G_MAXDOUBLE, G_MAXDOUBLE, 0, - G_PARAM_READABLE | G_PARAM_STATIC_STRINGS); - g_object_class_install_property (object_class, PROP_VOLUME, param_spec); - - - signals[RMS_LEVEL_CHANGED] = g_signal_new ("rms-level-changed", - G_TYPE_FROM_CLASS (empathy_audio_src_class), - G_SIGNAL_RUN_LAST, - 0, - NULL, NULL, - g_cclosure_marshal_VOID__DOUBLE, - G_TYPE_NONE, 1, G_TYPE_DOUBLE); -} - -void -empathy_audio_src_dispose (GObject *object) -{ - EmpathyGstAudioSrc *self = EMPATHY_GST_AUDIO_SRC (object); - EmpathyGstAudioSrcPrivate *priv = EMPATHY_GST_AUDIO_SRC_GET_PRIVATE (self); - - if (priv->dispose_has_run) - return; - - priv->dispose_has_run = TRUE; - - if (priv->idle_id != 0) - g_source_remove (priv->idle_id); - - priv->idle_id = 0; - - /* release any references held by the object here */ - - if (G_OBJECT_CLASS (empathy_audio_src_parent_class)->dispose) - G_OBJECT_CLASS (empathy_audio_src_parent_class)->dispose (object); -} - -void -empathy_audio_src_finalize (GObject *object) -{ - EmpathyGstAudioSrc *self = EMPATHY_GST_AUDIO_SRC (object); - EmpathyGstAudioSrcPrivate *priv = EMPATHY_GST_AUDIO_SRC_GET_PRIVATE (self); - - /* free any data held directly by the object here */ - g_mutex_free (priv->lock); - - G_OBJECT_CLASS (empathy_audio_src_parent_class)->finalize (object); -} - -static gboolean -empathy_audio_src_levels_updated (gpointer user_data) -{ - EmpathyGstAudioSrc *self = EMPATHY_GST_AUDIO_SRC (user_data); - EmpathyGstAudioSrcPrivate *priv = EMPATHY_GST_AUDIO_SRC_GET_PRIVATE (self); - - g_mutex_lock (priv->lock); - - g_signal_emit (self, signals[PEAK_LEVEL_CHANGED], 0, priv->peak_level); - g_signal_emit (self, signals[RMS_LEVEL_CHANGED], 0, priv->rms_level); - priv->idle_id = 0; - - g_mutex_unlock (priv->lock); - - return FALSE; -} - -static void -empathy_audio_src_handle_message (GstBin *bin, GstMessage *message) -{ - EmpathyGstAudioSrc *self = EMPATHY_GST_AUDIO_SRC (bin); - EmpathyGstAudioSrcPrivate *priv = EMPATHY_GST_AUDIO_SRC_GET_PRIVATE (self); - - if (GST_MESSAGE_TYPE (message) == GST_MESSAGE_ELEMENT && - GST_MESSAGE_SRC (message) == GST_OBJECT (priv->level)) - { - const GstStructure *s; - const gchar *name; - const GValue *list; - guint i, len; - gdouble peak = -G_MAXDOUBLE; - gdouble rms = -G_MAXDOUBLE; - - s = gst_message_get_structure (message); - name = gst_structure_get_name (s); - - if (g_strcmp0 ("level", name) != 0) - goto out; - - list = gst_structure_get_value (s, "peak"); - len = gst_value_list_get_size (list); - - for (i =0 ; i < len; i++) - { - const GValue *value; - gdouble db; - - value = gst_value_list_get_value (list, i); - db = g_value_get_double (value); - peak = MAX (db, peak); - } - - list = gst_structure_get_value (s, "rms"); - len = gst_value_list_get_size (list); - - for (i =0 ; i < len; i++) - { - const GValue *value; - gdouble db; - - value = gst_value_list_get_value (list, i); - db = g_value_get_double (value); - rms = MAX (db, rms); - } - - g_mutex_lock (priv->lock); - - priv->peak_level = peak; - priv->rms_level = rms; - if (priv->idle_id == 0) - priv->idle_id = g_idle_add (empathy_audio_src_levels_updated, self); - - g_mutex_unlock (priv->lock); - } - -out: - GST_BIN_CLASS (empathy_audio_src_parent_class)->handle_message (bin, - message); -} - -GstElement * -empathy_audio_src_new (void) -{ - static gboolean registered = FALSE; - - if (!registered) { - if (!gst_element_register (NULL, "empathyaudiosrc", - GST_RANK_NONE, EMPATHY_TYPE_GST_AUDIO_SRC)) - return NULL; - registered = TRUE; - } - return gst_element_factory_make ("empathyaudiosrc", NULL); -} - -void -empathy_audio_src_set_volume (EmpathyGstAudioSrc *src, gdouble volume) -{ - EmpathyGstAudioSrcPrivate *priv = EMPATHY_GST_AUDIO_SRC_GET_PRIVATE (src); - GParamSpec *pspec; - GParamSpecDouble *pspec_double; - - pspec = g_object_class_find_property (G_OBJECT_GET_CLASS (priv->volume), - "volume"); - - g_assert (pspec != NULL); - - pspec_double = G_PARAM_SPEC_DOUBLE (pspec); - - volume = CLAMP (volume, pspec_double->minimum, pspec_double->maximum); - - g_object_set (G_OBJECT (priv->volume), "volume", volume, NULL); -} - -gdouble -empathy_audio_src_get_volume (EmpathyGstAudioSrc *src) -{ - EmpathyGstAudioSrcPrivate *priv = EMPATHY_GST_AUDIO_SRC_GET_PRIVATE (src); - gdouble volume; - - g_object_get (G_OBJECT (priv->volume), "volume", &volume, NULL); - - return volume; -} - - |