diff options
Diffstat (limited to 'subprojects/gvc/gvc-mixer-event-role.c')
| -rw-r--r-- | subprojects/gvc/gvc-mixer-event-role.c | 229 |
1 files changed, 229 insertions, 0 deletions
diff --git a/subprojects/gvc/gvc-mixer-event-role.c b/subprojects/gvc/gvc-mixer-event-role.c new file mode 100644 index 0000000..272edb0 --- /dev/null +++ b/subprojects/gvc/gvc-mixer-event-role.c @@ -0,0 +1,229 @@ +/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*- + * + * Copyright (C) 2008 William Jon McCann + * + * This program 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. + * + * This program 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 "config.h" + +#include <stdlib.h> +#include <stdio.h> +#include <unistd.h> + +#include <glib.h> +#include <glib/gi18n-lib.h> + +#include <pulse/pulseaudio.h> +#include <pulse/ext-stream-restore.h> + +#include "gvc-mixer-event-role.h" +#include "gvc-mixer-stream-private.h" +#include "gvc-channel-map-private.h" + +struct GvcMixerEventRolePrivate +{ + char *device; +}; + +enum +{ + PROP_0, + PROP_DEVICE, + N_PROPS +}; +static GParamSpec *obj_props[N_PROPS] = { NULL, }; + +static void gvc_mixer_event_role_finalize (GObject *object); + +G_DEFINE_TYPE_WITH_PRIVATE (GvcMixerEventRole, gvc_mixer_event_role, GVC_TYPE_MIXER_STREAM) + +static gboolean +update_settings (GvcMixerEventRole *role, + gboolean is_muted, + gpointer *op) +{ + pa_operation *o; + const GvcChannelMap *map; + pa_context *context; + pa_ext_stream_restore_info info; + + map = gvc_mixer_stream_get_channel_map (GVC_MIXER_STREAM(role)); + + info.volume = *gvc_channel_map_get_cvolume(map); + info.name = "sink-input-by-media-role:event"; + info.channel_map = *gvc_channel_map_get_pa_channel_map(map); + info.device = role->priv->device; + info.mute = is_muted; + + context = gvc_mixer_stream_get_pa_context (GVC_MIXER_STREAM (role)); + + o = pa_ext_stream_restore_write (context, + PA_UPDATE_REPLACE, + &info, + 1, + TRUE, + NULL, + NULL); + + if (o == NULL) { + g_warning ("pa_ext_stream_restore_write() failed"); + return FALSE; + } + + if (op != NULL) + *op = o; + + return TRUE; +} + +static gboolean +gvc_mixer_event_role_push_volume (GvcMixerStream *stream, gpointer *op) +{ + return update_settings (GVC_MIXER_EVENT_ROLE (stream), + gvc_mixer_stream_get_is_muted (stream), op); +} + +static gboolean +gvc_mixer_event_role_change_is_muted (GvcMixerStream *stream, + gboolean is_muted) +{ + /* Apply change straight away so that we don't get a race with + * gvc_mixer_event_role_push_volume(). + * See https://bugs.freedesktop.org/show_bug.cgi?id=51413 */ + gvc_mixer_stream_set_is_muted (stream, is_muted); + return update_settings (GVC_MIXER_EVENT_ROLE (stream), + is_muted, NULL); +} + +static gboolean +gvc_mixer_event_role_set_device (GvcMixerEventRole *role, + const char *device) +{ + g_return_val_if_fail (GVC_IS_MIXER_EVENT_ROLE (role), FALSE); + + g_free (role->priv->device); + role->priv->device = g_strdup (device); + g_object_notify_by_pspec (G_OBJECT (role), obj_props[PROP_DEVICE]); + + return TRUE; +} + +static void +gvc_mixer_event_role_set_property (GObject *object, + guint prop_id, + const GValue *value, + GParamSpec *pspec) +{ + GvcMixerEventRole *self = GVC_MIXER_EVENT_ROLE (object); + + switch (prop_id) { + case PROP_DEVICE: + gvc_mixer_event_role_set_device (self, g_value_get_string (value)); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); + break; + } +} + +static void +gvc_mixer_event_role_get_property (GObject *object, + guint prop_id, + GValue *value, + GParamSpec *pspec) +{ + GvcMixerEventRole *self = GVC_MIXER_EVENT_ROLE (object); + + switch (prop_id) { + case PROP_DEVICE: + g_value_set_string (value, self->priv->device); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); + break; + } +} + +static void +gvc_mixer_event_role_class_init (GvcMixerEventRoleClass *klass) +{ + GObjectClass *object_class = G_OBJECT_CLASS (klass); + GvcMixerStreamClass *stream_class = GVC_MIXER_STREAM_CLASS (klass); + + object_class->finalize = gvc_mixer_event_role_finalize; + object_class->set_property = gvc_mixer_event_role_set_property; + object_class->get_property = gvc_mixer_event_role_get_property; + + stream_class->push_volume = gvc_mixer_event_role_push_volume; + stream_class->change_is_muted = gvc_mixer_event_role_change_is_muted; + + obj_props[PROP_DEVICE] = g_param_spec_string ("device", + "Device", + "Device", + NULL, + G_PARAM_READWRITE|G_PARAM_CONSTRUCT|G_PARAM_STATIC_STRINGS); + g_object_class_install_properties (object_class, N_PROPS, obj_props); +} + +static void +gvc_mixer_event_role_init (GvcMixerEventRole *event_role) +{ + event_role->priv = gvc_mixer_event_role_get_instance_private (event_role); + +} + +static void +gvc_mixer_event_role_finalize (GObject *object) +{ + GvcMixerEventRole *mixer_event_role; + + g_return_if_fail (object != NULL); + g_return_if_fail (GVC_IS_MIXER_EVENT_ROLE (object)); + + mixer_event_role = GVC_MIXER_EVENT_ROLE (object); + + g_return_if_fail (mixer_event_role->priv != NULL); + + g_free (mixer_event_role->priv->device); + + G_OBJECT_CLASS (gvc_mixer_event_role_parent_class)->finalize (object); +} + +/** + * gvc_mixer_event_role_new: (skip) + * @context: + * @device: + * @channel_map: + * + * Returns: + */ +GvcMixerStream * +gvc_mixer_event_role_new (pa_context *context, + const char *device, + GvcChannelMap *channel_map) +{ + GObject *object; + + object = g_object_new (GVC_TYPE_MIXER_EVENT_ROLE, + "pa-context", context, + "index", 0, + "device", device, + "channel-map", channel_map, + NULL); + + return GVC_MIXER_STREAM (object); +} |