diff options
Diffstat (limited to 'lib/src/sugar-audio-manager.c')
-rw-r--r-- | lib/src/sugar-audio-manager.c | 168 |
1 files changed, 0 insertions, 168 deletions
diff --git a/lib/src/sugar-audio-manager.c b/lib/src/sugar-audio-manager.c deleted file mode 100644 index 6f73cbc..0000000 --- a/lib/src/sugar-audio-manager.c +++ /dev/null @@ -1,168 +0,0 @@ -/* - * Copyright (C) 2006 Red Hat, Inc - * - * Sugar is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * Sugar 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 - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA. - */ - -#include <gst/gst.h> -#include <gst/audio/mixerutils.h> -#include <gst/interfaces/mixer.h> -#include <gst/interfaces/propertyprobe.h> - -#include "sugar-audio-manager.h" - -struct _SugarAudioManagerPrivate -{ - GstMixer *mixer; - GstMixerTrack *track; - guint timer_id; -}; - -G_DEFINE_TYPE(SugarAudioManager, sugar_audio_manager, G_TYPE_OBJECT) - -#define SUGAR_AUDIO_MANAGER_GET_PRIVATE(object) (G_TYPE_INSTANCE_GET_PRIVATE ((object), SUGAR_TYPE_AUDIO_MANAGER, SugarAudioManagerPrivate)) - -/* This is a modified version of code from gnome-control-center */ - -static gboolean -mixer_close_real(SugarAudioManager *manager) -{ - if (manager->priv->mixer != NULL) - { - gst_element_set_state(GST_ELEMENT(manager->priv->mixer), GST_STATE_NULL); - gst_object_unref(GST_OBJECT(manager->priv->mixer)); - g_object_unref(G_OBJECT(manager->priv->track)); - manager->priv->mixer = NULL; - manager->priv->track = NULL; - } - - manager->priv->timer_id = 0; - - return FALSE; -} - -static gboolean -set_mixer_helper(GstMixer *mixer, gpointer user_data) -{ - const GList *tracks; - - tracks = gst_mixer_list_tracks(mixer); - - while (tracks != NULL) { - GstMixerTrack *track = GST_MIXER_TRACK(tracks->data); - - if (GST_MIXER_TRACK_HAS_FLAG(track, GST_MIXER_TRACK_MASTER)) { - SugarAudioManager *manager; - - manager = SUGAR_AUDIO_MANAGER(user_data); - - manager->priv->mixer = mixer; - manager->priv->track = track; - - /* no need to ref the mixer element */ - g_object_ref(manager->priv->track); - return TRUE; - } - - tracks = tracks->next; - } - - return FALSE; -} - -static gboolean -mixer_open(SugarAudioManager *manager) -{ - GList *mixer_list; - - if (manager->priv->timer_id != 0) { - g_source_remove (manager->priv->timer_id); - manager->priv->timer_id = 0; - return TRUE; - } - - mixer_list = gst_audio_default_registry_mixer_filter - (set_mixer_helper, TRUE, manager); - - if (mixer_list == NULL) - return FALSE; - - /* do not unref the mixer as we keep the ref for manager->priv->mixer */ - g_list_free (mixer_list); - - return TRUE; -} - -static void -mixer_close(SugarAudioManager *manager) -{ - manager->priv->timer_id = g_timeout_add (4000, (GSourceFunc)mixer_close_real, manager); -} - -void -sugar_audio_manager_set_volume (SugarAudioManager *manager, - int level) -{ - gint i, *volumes, volume; - GstMixerTrack *track; - - if (mixer_open(manager) == FALSE) - return; - - track = manager->priv->track; - volume = CLAMP(level, 0, 100); - - /* Rescale the volume from [0, 100] to [track min, track max]. */ - volume = (volume / 100.0) * (track->max_volume - track->min_volume) + - track->min_volume; - - volumes = g_new(gint, track->num_channels); - for (i = 0; i < track->num_channels; ++i) - volumes[i] = (gint)volume; - gst_mixer_set_volume(manager->priv->mixer, track, volumes); - g_free (volumes); - - mixer_close(manager); -} - -static void -sugar_audio_manager_finalize (GObject *object) -{ - SugarAudioManager *manager = SUGAR_AUDIO_MANAGER(object); - - mixer_close_real(manager); - - G_OBJECT_CLASS(sugar_audio_manager_parent_class)->finalize(object); -} - -static void -sugar_audio_manager_class_init(SugarAudioManagerClass *klass) -{ - GObjectClass *object_class = G_OBJECT_CLASS(klass); - - gst_init (NULL, NULL); - - object_class->finalize = sugar_audio_manager_finalize; - - g_type_class_add_private(klass, sizeof(SugarAudioManagerPrivate)); -} - -static void -sugar_audio_manager_init(SugarAudioManager *manager) -{ - manager->priv = SUGAR_AUDIO_MANAGER_GET_PRIVATE(manager); -} - - |