1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
|
/*
* Copyright (C) 2015 Canonical, Ltd.
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 3, as published
* by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranties of
* MERCHANTABILITY, SATISFACTORY QUALITY, 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, see <http://www.gnu.org/licenses/>.
*
* Author: Xavi Garcia <xavi.garcia.mena@canonical.com>
*/
#include "dbus-pulse-volume.h"
#include "dbus_properties_interface.h"
#include "dbus_accounts_interface.h"
#include "dbus_accountssound_interface.h"
#include "stream_restore_interface.h"
#include <pulse/volume.h>
#include <QSignalSpy>
unsigned int volumeDoubleToUint(double volume)
{
double tmp = (double)(PA_VOLUME_NORM - PA_VOLUME_MUTED) * volume;
return (unsigned int)tmp + PA_VOLUME_MUTED;
}
double volumeUIntToDoulbe(uint volume)
{
double tmp = (double)(volume - PA_VOLUME_MUTED);
return tmp / (double)(PA_VOLUME_NORM - PA_VOLUME_MUTED);
}
DBusPulseVolume::DBusPulseVolume() :
QObject()
{
std::unique_ptr<DBusPropertiesInterface> basicConnectionInterface(new DBusPropertiesInterface("org.PulseAudio1",
"/org/pulseaudio/server_lookup1",
QDBusConnection::sessionBus(), 0));
QDBusReply<QVariant> connection_string = basicConnectionInterface->call(QLatin1String("Get"),
QLatin1String("org.PulseAudio.ServerLookup1"),
QLatin1String("Address"));
if (!connection_string.isValid())
{
qWarning() << "DBusPulseVolume::DBusPulseVolume(): D-Bus error: " << connection_string.error().message();
}
connection_.reset(new QDBusConnection(QDBusConnection::connectToPeer(connection_string.value().toString(), "set-volume")));
if (connection_->isConnected())
{
interface_paths_.reset(new StreamRestoreInterface("org.PulseAudio.Ext.StreamRestore1",
"/org/pulseaudio/stream_restore1",
*(connection_.get()), 0));
if (interface_paths_)
{
// get the role paths
fillRolePath("multimedia");
fillRolePath("alert");
fillRolePath("alarm");
fillRolePath("phone");
}
initializeAccountsInterface();
}
else
{
qWarning() << "DBusPulseVolume::DBusPulseVolume(): Error connecting: " << connection_->lastError().message();
}
}
DBusPulseVolume::~DBusPulseVolume()
{
}
QString DBusPulseVolume::fillRolePath(QString const &role)
{
QString role_complete_name = QString("sink-input-by-media-role:") + role;
// get the role paths
QDBusReply<QDBusObjectPath> objectPath = interface_paths_->call(QLatin1String("GetEntryByName"), role_complete_name);
if (!objectPath.isValid())
{
qWarning() << "SetVolume::fillRolePath(): D-Bus error: " << objectPath.error().message();
return "";
}
auto role_info = std::make_shared<RoleInformation>();
role_info->interface_.reset(new DBusPropertiesInterface("org.PulseAudio.Ext.StreamRestore1.RestoreEntry",
objectPath.value().path(),
*(connection_.get()), 0));
if (!role_info->interface_)
{
qWarning() << "SetVolume::fillRolePath() - Error obtaining properties interface";
return "";
}
role_info->path_ = objectPath.value().path();
roles_map_[role] = role_info;
return role_info->path_;
}
bool DBusPulseVolume::setVolume(QString const & role, double volume)
{
if (!interface_paths_)
{
qWarning() << "SetVolume::setVolume(): error: Volume interfaces are not initialized";
return false;
}
RolesMap::const_iterator iter = roles_map_.find(role);
if (iter != roles_map_.end())
{
QVariant var;
PulseaudioVolumeArray t;
PulseaudioVolume vv(0, volumeDoubleToUint(volume));
t.addItem(vv);
var.setValue(t);
QDBusVariant dbusVar(var);
QDBusReply<void> set_vol = (*iter).second->interface_->call(QLatin1String("Set"),
QVariant::fromValue(QString("org.PulseAudio.Ext.StreamRestore1.RestoreEntry")),
QVariant::fromValue(QString("Volume")),
QVariant::fromValue(dbusVar));
if (!set_vol.isValid())
{
qWarning() << "SetVolume::setVolume(): D-Bus error: " << set_vol.error().message();
return false;
}
if (accounts_interface_)
{
QDBusVariant dbusVar(QVariant::fromValue(volume));
QDBusReply<void> set_vol = accounts_interface_->call(QLatin1String("Set"),
QVariant::fromValue(QString("com.ubuntu.AccountsService.Sound")),
QVariant::fromValue(QString("Volume")),
QVariant::fromValue(dbusVar));
if (!set_vol.isValid())
{
qWarning() << "SetVolume::setVolume(): D-Bus error: " << set_vol.error().message();
return false;
}
}
}
return true;
}
double DBusPulseVolume::getVolume(QString const & role)
{
if (interface_paths_)
{
RolesMap::const_iterator iter = roles_map_.find(role);
if (iter != roles_map_.end())
{
QDBusReply<QVariant> prev_vol = (*iter).second->interface_->call(QLatin1String("Get"),
QLatin1String("org.PulseAudio.Ext.StreamRestore1.RestoreEntry"),
QLatin1String("Volume"));
if (!prev_vol.isValid())
{
qWarning() << "SetVolume::setVolume(): D-Bus error: " << prev_vol.error().message();
}
QDBusArgument arg = prev_vol.value().value<QDBusArgument>();
PulseaudioVolumeArray element;
arg >> element;
return volumeUIntToDoulbe(element.getItem(0).getVolume());
}
}
return -1.0;
}
void DBusPulseVolume::initializeAccountsInterface()
{
auto username = qgetenv("USER");
if (username != "")
{
qDebug() << "Setting Accounts interface for user: " << username;
std::unique_ptr<AccountsInterface> setInterface(new AccountsInterface("org.freedesktop.Accounts",
"/org/freedesktop/Accounts",
QDBusConnection::systemBus(), 0));
QDBusReply<QDBusObjectPath> userResp = setInterface->call(QLatin1String("FindUserByName"),
QLatin1String(username));
if (!userResp.isValid())
{
qWarning() << "SetVolume::initializeAccountsInterface(): D-Bus error: " << userResp.error().message();
}
auto userPath = userResp.value().path();
if (userPath != "")
{
std::unique_ptr<AccountsSoundInterface> soundInterface(new AccountsSoundInterface("org.freedesktop.Accounts",
userPath,
QDBusConnection::systemBus(), 0));
accounts_interface_.reset(new DBusPropertiesInterface("org.freedesktop.Accounts",
userPath,
soundInterface->connection(), 0));
if (!accounts_interface_->isValid())
{
qWarning() << "SetVolume::initializeAccountsInterface(): D-Bus error: " << accounts_interface_->lastError().message();
}
signal_spy_volume_changed_.reset(new QSignalSpy(accounts_interface_.get(),&DBusPropertiesInterface::PropertiesChanged));
}
}
}
bool DBusPulseVolume::waitForVolumeChangedInAccountsService()
{
if (signal_spy_volume_changed_)
{
return signal_spy_volume_changed_->wait();
}
else
{
qWarning() << "DBusPulseVolume::waitForVolumeChangedInAccountsService(): signal was not instantiated";
}
return false;
}
|
