aboutsummaryrefslogtreecommitdiff
path: root/src/volume-warning.vala
blob: 2bb4daed6beb28be3088a124329f1f067a3e5b1d (plain)
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
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
/*
 * -*- Mode:Vala; indent-tabs-mode:t; tab-width:4; encoding:utf8 -*-
 * Copyright 2013 Canonical Ltd.
 *
 * 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; version 3.
 *
 * 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, see <http://www.gnu.org/licenses/>.
 *
 * Authors:
 *      Alberto Ruiz <alberto.ruiz@canonical.com>
 */

using PulseAudio;
using Notify;
using Gee;

[CCode(cname="pa_cvolume_set", cheader_filename = "pulse/volume.h")]
extern unowned PulseAudio.CVolume? vol_set2 (PulseAudio.CVolume? cv, uint channels, PulseAudio.Volume v);

public class VolumeWarning : VolumeControl
{
	// true if the warning dialog is currently active
	public bool active { get; public set; default = false; }

	// FIXME: this is temporarily necessary while bootstrapping this
	// code because VolumeWarning is still subclassed from VolumeControl,
	// but TBH we don't need any concept of mute here.
        public override void set_mute (bool mute) {
		warning("set_mute not supported for VolumeWarning");
	}

	/* this is static to ensure it being freed after @context (loop does not have ref counting) */
	private static PulseAudio.GLibMainLoop loop;

	private uint _reconnect_timer = 0;

	private PulseAudio.Context context;
	private bool   _ignore_warning_this_time = false;
	private VolumeControl.Volume _volume = new VolumeControl.Volume();
	private double _mic_volume = 0.0;
	private Settings _settings = new Settings ("com.canonical.indicator.sound");

	/* Used by the pulseaudio stream restore extension */
	private DBusConnection _pconn;
	/* Need both the list and hash so we can retrieve the last known sink-input after
	 * releasing the current active one (restoring back to the previous known role) */
	private Gee.ArrayList<uint32> _sink_input_list = new Gee.ArrayList<uint32> ();
	private HashMap<uint32, string> _sink_input_hash = new HashMap<uint32, string> ();
	private bool _pulse_use_stream_restore = false;
	private int32 _active_sink_input = -1;
	private string[] _valid_roles = {"multimedia", "alert", "alarm", "phone"};
	public override string stream {
		get {
			if (_active_sink_input == -1)
				return "alert";
			var path = _sink_input_hash[_active_sink_input];
			if (path == _objp_role_multimedia)
				return "multimedia";
			if (path == _objp_role_alert)
				return "alert";
			if (path == _objp_role_alarm)
				return "alarm";
			if (path == _objp_role_phone)
				return "phone";
			return "alert";
		}
	}
	private string? _objp_role_multimedia = null;
	private string? _objp_role_alert = null;
	private string? _objp_role_alarm = null;
	private string? _objp_role_phone = null;
	private uint _pa_volume_sig_count = 0;

	private bool _active_port_headphone = false;
	private VolumeControl.ActiveOutput _active_output = VolumeControl.ActiveOutput.SPEAKERS;

	/** true when connected to the pulse server */
	public override bool ready { get; private set; }

	/** true when a microphone is active **/
	public override bool active_mic { get; private set; default = false; }

	public VolumeWarning (IndicatorSound.Options options)
	{
		base(options);

		_volume.volume = 0.0;
		_volume.reason = VolumeControl.VolumeReasons.PULSE_CHANGE;

		if (loop == null)
			loop = new PulseAudio.GLibMainLoop ();

		init_all_properties();

		this.reconnect_to_pulse ();
	}

	private void init_all_properties()
	{
		init_high_volume();
		init_high_volume_approved();
	}

	~VolumeWarning ()
	{
		stop_all_timers();
	}

	private void stop_all_timers()
	{
		if (_reconnect_timer != 0) {
			Source.remove (_reconnect_timer);
			_reconnect_timer = 0;
		}
		stop_high_volume_approved_timer();
	}

	private VolumeControl.ActiveOutput calculate_active_output (SinkInfo? sink) {

		VolumeControl.ActiveOutput ret_output = VolumeControl.ActiveOutput.SPEAKERS;
		/* Check if the current active port is headset/headphone */
    		/* There is not easy way to check if the port is a headset/headphone besides
    		 * checking for the port name. On touch (with the pulseaudio droid element)
    		 * the headset/headphone port is called 'output-headset' and 'output-headphone'.
    		 * On the desktop this is usually called 'analog-output-headphones' */

		// first of all check if we are in call mode
		if (sink.active_port != null && sink.active_port.name == "output-speaker+wired_headphone") {
			return VolumeControl.ActiveOutput.CALL_MODE;
		}
		// look if it's a headset/headphones
		if (sink.name == "indicator_sound_test_headphones" ||
			(sink.active_port != null &&
			 (sink.active_port.name.contains("headset") ||
		          sink.active_port.name.contains("headphone")))) {
			    	_active_port_headphone = true;
	    			// check if it's a bluetooth device
	    			var device_bus = sink.proplist.gets ("device.bus");
	    			if (device_bus != null && device_bus == "bluetooth") {
					ret_output = VolumeControl.ActiveOutput.BLUETOOTH_HEADPHONES;
        			} else if (device_bus != null && device_bus == "usb") {
					ret_output = VolumeControl.ActiveOutput.USB_HEADPHONES;
				} else if (device_bus != null && device_bus == "hdmi") {
					ret_output = VolumeControl.ActiveOutput.HDMI_HEADPHONES;
				} else {
					ret_output = VolumeControl.ActiveOutput.HEADPHONES;
        		}
		} else {
			// speaker
			_active_port_headphone = false;
			var device_bus = sink.proplist.gets ("device.bus");
	    		if (device_bus != null && device_bus == "bluetooth") {
	    		    ret_output = VolumeControl.ActiveOutput.BLUETOOTH_SPEAKER;
        		} else if (device_bus != null && device_bus == "usb") {
				ret_output = VolumeControl.ActiveOutput.USB_SPEAKER;
			} else if (device_bus != null && device_bus == "hdmi") {
				ret_output = VolumeControl.ActiveOutput.HDMI_SPEAKER;
			} else {
				ret_output = VolumeControl.ActiveOutput.SPEAKERS;
        		}
		}

		return ret_output;
	}

	/* PulseAudio logic*/
	private void context_events_cb (Context c, Context.SubscriptionEventType t, uint32 index)
	{
		switch (t & Context.SubscriptionEventType.FACILITY_MASK)
		{
			case Context.SubscriptionEventType.SINK:
				update_sink ();
				break;

			case Context.SubscriptionEventType.SINK_INPUT:
				switch (t & Context.SubscriptionEventType.TYPE_MASK)
				{
					case Context.SubscriptionEventType.NEW:
						c.get_sink_input_info (index, handle_new_sink_input_cb);
						break;

					case Context.SubscriptionEventType.CHANGE:
						c.get_sink_input_info (index, handle_changed_sink_input_cb);
						break;

					case Context.SubscriptionEventType.REMOVE:
						remove_sink_input_from_list (index);
						break;
					default:
						debug ("Sink input event not known.");
						break;
				}
				break;

			case Context.SubscriptionEventType.SOURCE:
				update_source ();
				break;

			case Context.SubscriptionEventType.SOURCE_OUTPUT:
				switch (t & Context.SubscriptionEventType.TYPE_MASK)
				{
					case Context.SubscriptionEventType.NEW:
						c.get_source_output_info (index, source_output_info_cb);
						break;

					case Context.SubscriptionEventType.REMOVE:
						this.active_mic = false;
						break;
				}
				break;
		}
	}

	private void sink_info_cb_for_props (Context c, SinkInfo? i, int eol)
	{
		if (i == null)
			return;

		// store the current status of the active output
		VolumeControl.ActiveOutput active_output_before = active_output;

		// calculate the output
		_active_output = calculate_active_output (i);

		// check if the output has changed, if so... emit a signal
		VolumeControl.ActiveOutput active_output_now = active_output;
		if (active_output_now != active_output_before &&
			(active_output_now != VolumeControl.ActiveOutput.CALL_MODE &&
			 active_output_before != VolumeControl.ActiveOutput.CALL_MODE)) {
			this.active_output_changed (active_output_now);
			if (active_output_now == VolumeControl.ActiveOutput.SPEAKERS) {
				_high_volume_approved = false;
			}
			update_high_volume();
		}

		if (_pulse_use_stream_restore == false &&
				_volume.volume != volume_to_double (i.volume.max ()))
		{
			var vol = new VolumeControl.Volume();
			vol.volume = volume_to_double (i.volume.max ());
			vol.reason = VolumeControl.VolumeReasons.PULSE_CHANGE;
			this.volume = vol;
		}
	}

	private void source_info_cb (Context c, SourceInfo? i, int eol)
	{
		if (i == null)
			return;

		if (_mic_volume != volume_to_double (i.volume.values[0]))
		{
			_mic_volume = volume_to_double (i.volume.values[0]);
			this.notify_property ("mic-volume");
		}
	}

	private void server_info_cb_for_props (Context c, ServerInfo? i)
	{
		if (i == null)
			return;
		context.get_sink_info_by_name (i.default_sink_name, sink_info_cb_for_props);
	}

	private void update_sink ()
	{
		context.get_server_info (server_info_cb_for_props);
	}

	private void update_source_get_server_info_cb (PulseAudio.Context c, PulseAudio.ServerInfo? i) {
		if (i != null)
			context.get_source_info_by_name (i.default_source_name, source_info_cb);
	}

	private void update_source ()
	{
		context.get_server_info (update_source_get_server_info_cb);
	}

	private DBusMessage pulse_dbus_filter (DBusConnection connection, owned DBusMessage message, bool incoming)
	{
		if (message.get_message_type () == DBusMessageType.SIGNAL) {
			string active_role_objp = _objp_role_alert;
			if (_active_sink_input != -1)
				active_role_objp = _sink_input_hash.get (_active_sink_input);

			if (message.get_path () == active_role_objp && message.get_member () == "VolumeUpdated") {
				uint sig_count = 0;
				lock (_pa_volume_sig_count) {
					sig_count = _pa_volume_sig_count;
					if (_pa_volume_sig_count > 0)
						_pa_volume_sig_count--;
				}

				/* We only care about signals if our internal count is zero */
				if (sig_count == 0) {
					/* Extract volume and make sure it's not a side effect of us setting it */
					Variant body = message.get_body ();
					Variant varray = body.get_child_value (0);

					uint32 type = 0, lvolume = 0;
					VariantIter iter = varray.iterator ();
					iter.next ("(uu)", &type, &lvolume);
					/* Here we need to compare integer values to avoid rounding issues, so just
					 * using the volume values used by pulseaudio */
					PulseAudio.Volume cvolume = double_to_volume (_volume.volume);
					if (lvolume != cvolume) {
						/* Someone else changed the volume for this role, reflect on the indicator */
						var vol = new VolumeControl.Volume();
						vol.volume = volume_to_double (lvolume);
						vol.reason = VolumeControl.VolumeReasons.PULSE_CHANGE;
						// Ignore changes from PULSE to avoid issues with
						// some apps that change the volume in the sink
						// We only take into account volume changes from the user
						this._ignore_warning_this_time = true;
						this.volume = vol;
					}
				}
			}
		}

		return message;
	}

	private async void update_active_sink_input (int32 index)
	{
		if ((index == -1) || (index != _active_sink_input && index in _sink_input_list)) {
			string sink_input_objp = _objp_role_alert;
			if (index != -1)
				sink_input_objp = _sink_input_hash.get (index);
			_active_sink_input = index;

			/* Listen for role volume changes from pulse itself (external clients) */
			try {
				var builder = new VariantBuilder (new VariantType ("ao"));
				builder.add ("o", sink_input_objp);

				yield _pconn.call ("org.PulseAudio.Core1", "/org/pulseaudio/core1",
						"org.PulseAudio.Core1", "ListenForSignal",
						new Variant ("(sao)", "org.PulseAudio.Ext.StreamRestore1.RestoreEntry.VolumeUpdated", builder),
						null, DBusCallFlags.NONE, -1);
			} catch (GLib.Error e) {
				warning ("unable to listen for pulseaudio dbus signals (%s)", e.message);
			}

			try {
				var props_variant = yield _pconn.call ("org.PulseAudio.Ext.StreamRestore1.RestoreEntry",
						sink_input_objp, "org.freedesktop.DBus.Properties", "Get",
						new Variant ("(ss)", "org.PulseAudio.Ext.StreamRestore1.RestoreEntry", "Volume"),
						null, DBusCallFlags.NONE, -1);
				Variant tmp;
				props_variant.get ("(v)", out tmp);
				uint32 type = 0, volume = 0;
				VariantIter iter = tmp.iterator ();
				iter.next ("(uu)", &type, &volume);

				var vol = new VolumeControl.Volume();
				vol.volume = volume_to_double (volume);
				vol.reason = VolumeControl.VolumeReasons.VOLUME_STREAM_CHANGE;
				// Ignore changes from PULSE to avoid issues with
                                // some apps that change the volume in the sink
                                // We only take into account volume changes from the user
				this._ignore_warning_this_time = true;
				this.volume = vol;
			} catch (GLib.Error e) {
				warning ("unable to get volume for active role %s (%s)", sink_input_objp, e.message);
			}
		}
	}

	private void add_sink_input_into_list (SinkInputInfo sink_input)
	{
		/* We're only adding ones that are not corked and with a valid role */
		var role = sink_input.proplist.gets (PulseAudio.Proplist.PROP_MEDIA_ROLE);

		if (role != null && role in _valid_roles) {
			if (sink_input.corked == 0 || role == "phone") {
				_sink_input_list.insert (0, sink_input.index);
				switch (role)
				{
					case "multimedia":
						_sink_input_hash.set (sink_input.index, _objp_role_multimedia);
						break;
					case "alert":
						_sink_input_hash.set (sink_input.index, _objp_role_alert);
						break;
					case "alarm":
						_sink_input_hash.set (sink_input.index, _objp_role_alarm);
						break;
					case "phone":
						_sink_input_hash.set (sink_input.index, _objp_role_phone);
						break;
				}
				/* Only switch the active sink input in case a phone one is not active */
				if (_active_sink_input == -1 ||
						_sink_input_hash.get (_active_sink_input) != _objp_role_phone)
					update_active_sink_input.begin ((int32)sink_input.index);
			}
		}
	}

	private void remove_sink_input_from_list (uint32 index)
	{
		if (index in _sink_input_list) {
			_sink_input_list.remove (index);
			_sink_input_hash.unset (index);
			if (index == _active_sink_input) {
				if (_sink_input_list.size != 0)
					update_active_sink_input.begin ((int32)_sink_input_list.get (0));
				else
					update_active_sink_input.begin (-1);
			}
		}
	}

	private void handle_new_sink_input_cb (Context c, SinkInputInfo? i, int eol)
	{
		if (i == null)
			return;

		add_sink_input_into_list (i);
	}

	private void handle_changed_sink_input_cb (Context c, SinkInputInfo? i, int eol)
	{
		if (i == null)
			return;

		if (i.index in _sink_input_list) {
			/* Phone stream is always corked, so handle it differently */
			if (i.corked == 1 && _sink_input_hash.get (i.index) != _objp_role_phone)
				remove_sink_input_from_list (i.index);
		} else {
			if (i.corked == 0)
				add_sink_input_into_list (i);
		}
	}

	private void source_output_info_cb (Context c, SourceOutputInfo? i, int eol)
	{
		if (i == null)
			return;

		var role = i.proplist.gets (PulseAudio.Proplist.PROP_MEDIA_ROLE);
		if (role == "phone" || role == "production")
			this.active_mic = true;
	}

	private void context_state_callback (Context c)
	{
		switch (c.get_state ()) {
			case Context.State.READY:
				if (_pulse_use_stream_restore) {
					c.subscribe (PulseAudio.Context.SubscriptionMask.SINK |
							PulseAudio.Context.SubscriptionMask.SINK_INPUT |
							PulseAudio.Context.SubscriptionMask.SOURCE |
							PulseAudio.Context.SubscriptionMask.SOURCE_OUTPUT);
				} else {
					c.subscribe (PulseAudio.Context.SubscriptionMask.SINK |
							PulseAudio.Context.SubscriptionMask.SOURCE |
							PulseAudio.Context.SubscriptionMask.SOURCE_OUTPUT);
				}
				c.set_subscribe_callback (context_events_cb);
				update_sink ();
				update_source ();
				this.ready = true;
				break;

			case Context.State.FAILED:
			case Context.State.TERMINATED:
				if (_reconnect_timer == 0)
					_reconnect_timer = Timeout.add_seconds (2, reconnect_timeout);
				break;

			default:
				this.ready = false;
				break;
		}
	}

	bool reconnect_timeout ()
	{
		_reconnect_timer = 0;
		reconnect_to_pulse ();
		return false; // G_SOURCE_REMOVE
	}

	void reconnect_to_pulse ()
	{
		if (this.ready) {
			this.context.disconnect ();
			this.context = null;
			this.ready = false;
		}

		var props = new Proplist ();
		props.sets (Proplist.PROP_APPLICATION_NAME, "Ubuntu Audio Settings");
		props.sets (Proplist.PROP_APPLICATION_ID, "com.canonical.settings.sound");
		props.sets (Proplist.PROP_APPLICATION_ICON_NAME, "multimedia-volume-control");
		props.sets (Proplist.PROP_APPLICATION_VERSION, "0.1");

		reconnect_pulse_dbus ();

		this.context = new PulseAudio.Context (loop.get_api(), null, props);
		this.context.set_state_callback (context_state_callback);

		var server_string = Environment.get_variable("PULSE_SERVER");
		if (context.connect(server_string, Context.Flags.NOFAIL, null) < 0)
			warning( "pa_context_connect() failed: %s\n", PulseAudio.strerror(context.errno()));
	}

	public override VolumeControl.ActiveOutput active_output
	{
		get
		{
			return _active_output;
		}
	}

	/* Volume operations */
	private static PulseAudio.Volume double_to_volume (double vol)
	{
		double tmp = (double)(PulseAudio.Volume.NORM - PulseAudio.Volume.MUTED) * vol;
		return (PulseAudio.Volume)tmp + PulseAudio.Volume.MUTED;
	}

	private static double volume_to_double (PulseAudio.Volume vol)
	{
		double tmp = (double)(vol - PulseAudio.Volume.MUTED);
		return tmp / (double)(PulseAudio.Volume.NORM - PulseAudio.Volume.MUTED);
	}

	private void set_volume_success_cb (Context c, int success)
	{
		if ((bool)success)
			this.notify_property("volume");
	}

	private void sink_info_set_volume_cb (Context c, SinkInfo? i, int eol)
	{
		if (i == null)
			return;

		unowned CVolume cvol = i.volume;
		cvol.scale (double_to_volume (_volume.volume));
		c.set_sink_volume_by_index (i.index, cvol, set_volume_success_cb);
	}

	private void server_info_cb_for_set_volume (Context c, ServerInfo? i)
	{
		if (i == null)
		{
			warning ("Could not get PulseAudio server info");
			return;
		}

		context.get_sink_info_by_name (i.default_sink_name, sink_info_set_volume_cb);
	}

	private async void set_volume_active_role ()
	{
		string active_role_objp = _objp_role_alert;

		if (_active_sink_input != -1 && _active_sink_input in _sink_input_list)
			active_role_objp = _sink_input_hash.get (_active_sink_input);

		try {
			double vol = _volume.volume;
			var builder = new VariantBuilder (new VariantType ("a(uu)"));
			builder.add ("(uu)", 0, double_to_volume (vol));
			Variant volume = builder.end ();

			/* Increase the signal counter so we can handle the callback */
			lock (_pa_volume_sig_count) {
				_pa_volume_sig_count++;
			}

			yield _pconn.call ("org.PulseAudio.Ext.StreamRestore1.RestoreEntry",
					active_role_objp, "org.freedesktop.DBus.Properties", "Set",
					new Variant ("(ssv)", "org.PulseAudio.Ext.StreamRestore1.RestoreEntry", "Volume", volume),
					null, DBusCallFlags.NONE, -1);

			debug ("Set volume to %f on path %s", vol, active_role_objp);
		} catch (GLib.Error e) {
			lock (_pa_volume_sig_count) {
				_pa_volume_sig_count--;
			}
			warning ("unable to set volume for stream obj path %s (%s)", active_role_objp, e.message);
		}
	}

	void set_mic_volume_success_cb (Context c, int success)
	{
		if ((bool)success)
			this.notify_property ("mic-volume");
	}

	void set_mic_volume_get_server_info_cb (PulseAudio.Context c, PulseAudio.ServerInfo? i) {
		if (i != null) {
			unowned CVolume cvol = CVolume ();
			cvol = vol_set2 (cvol, 1, double_to_volume (_mic_volume));
			c.set_source_volume_by_name (i.default_source_name, cvol, set_mic_volume_success_cb);
		}
	}

	public override VolumeControl.Volume volume {
		get {
			return _volume;
		}
		set {
			var volume_changed = (value.volume != _volume.volume);
			debug("Setting volume to %f for profile %d because %d", value.volume, _active_sink_input, value.reason);

			_volume = value;

			/* Make sure we're connected to Pulse and pulse didn't give us the change */
			if (context.get_state () == Context.State.READY &&
					_volume.reason != VolumeControl.VolumeReasons.PULSE_CHANGE &&
					volume_changed)
				if (_pulse_use_stream_restore)
					set_volume_active_role.begin ();
				else
					context.get_server_info (server_info_cb_for_set_volume);

			update_high_volume();
		}
	}

	/** HIGH VOLUME PROPERTY **/

	private bool _high_volume = false;
	public bool ignore_high_volume {
		get {
			if (_ignore_warning_this_time) {
				warning("Ignore");
				_ignore_warning_this_time = false;
				return true;
			}
			return false;
		}
		set { }
	}
	public override bool high_volume {
		get { return this._high_volume; }
		private set { this._high_volume = value; }
	}
	private void init_high_volume() {
		_options.loud_changed.connect(() => update_high_volume());
		update_high_volume();
	}
	private void update_high_volume() {
		var new_high_volume = calculate_high_volume();
		if (high_volume != new_high_volume) {
			debug("changing high_volume from %d to %d", (int)high_volume, (int)new_high_volume);
			high_volume = new_high_volume;
		}
	}
	private bool calculate_high_volume() {
		return calculate_high_volume_from_volume(_volume.volume);
	}
	private bool calculate_high_volume_from_volume(double volume) {
		return _active_port_headphone
			&& _options.is_loud(_volume)
			&& (stream == "multimedia");
	}

	public override void clamp_to_high_volume() {
		if (_high_volume && _options.is_loud(_volume)) {
			var vol = new VolumeControl.Volume();
			vol.volume = _volume.volume.clamp(0, volume_to_double(_options.loud_volume()));
			vol.reason = _volume.reason;
			debug("Clamping from %f down to %f", _volume.volume, vol.volume);
			volume = vol;
		}
	}

	public override void set_warning_volume() {
		var vol = new VolumeControl.Volume();
                vol.volume = volume_to_double(_options.loud_volume());
                vol.reason = _volume.reason;
                debug("Setting warning level volume from %f down to %f", _volume.volume, vol.volume);
                volume = vol;
	}

	/** HIGH VOLUME APPROVED PROPERTY **/

	public bool high_volume_approved { get; private set; default = false; }

	public void approve_high_volume() {
		_high_volume_approved_at = GLib.get_monotonic_time();
		update_high_volume_approved();
		update_high_volume_approved_timer();
	}

	private uint _high_volume_approved_timer = 0;
	private int64 _high_volume_approved_at = 0;
	private int64 _high_volume_approved_ttl_usec = 0;
	private void init_high_volume_approved() {
		_settings.changed["warning-volume-confirmation-ttl"].connect(() => update_high_volume_approved_cache());
		update_high_volume_approved_cache();
	}
	private void update_high_volume_approved_cache() {
		_high_volume_approved_ttl_usec = _settings.get_int("warning-volume-confirmation-ttl");
		_high_volume_approved_ttl_usec *= 1000000;

		update_high_volume_approved();
		update_high_volume_approved_timer();
	}
	private void update_high_volume_approved_timer() {
		stop_high_volume_approved_timer();
		if (_high_volume_approved_at != 0) {
			int64 expires_at = _high_volume_approved_at + _high_volume_approved_ttl_usec;
			int64 now = GLib.get_monotonic_time();
			if (expires_at > now) {
				var seconds_left = 1 + ((expires_at - now) / 1000000);
				_high_volume_approved_timer = Timeout.add_seconds((uint)seconds_left, on_high_volume_approved_timer);
			}
		}
	}
	private void stop_high_volume_approved_timer() {
		if (_high_volume_approved_timer != 0) {
			Source.remove (_high_volume_approved_timer);
			_high_volume_approved_timer = 0;
		}
	}
	private bool on_high_volume_approved_timer() {
		_high_volume_approved_timer = 0;
		update_high_volume_approved();
		return false; /* Source.REMOVE */
	}
	private void update_high_volume_approved() {
		var new_high_volume_approved = calculate_high_volume_approved();
		if (high_volume_approved != new_high_volume_approved) {
			debug("changing high_volume_approved from %d to %d", (int)high_volume_approved, (int)new_high_volume_approved);
			high_volume_approved = new_high_volume_approved;
		}
	}
	private bool calculate_high_volume_approved() {
		int64 now = GLib.get_monotonic_time();
		return (_high_volume_approved_at != 0)
			&& (_high_volume_approved_at + _high_volume_approved_ttl_usec >= now);
	}


	/** MIC VOLUME PROPERTY */

	public override double mic_volume {
		get {
			return _mic_volume;
		}
		set {
			return_if_fail (context.get_state () == Context.State.READY);

			_mic_volume = value;

			context.get_server_info (set_mic_volume_get_server_info_cb);
		}
	}

	/* PulseAudio Dbus (Stream Restore) logic */
	private void reconnect_pulse_dbus ()
	{
		unowned string pulse_dbus_server_env = Environment.get_variable ("PULSE_DBUS_SERVER");
		string address;

		/* In case of a reconnect */
		_pulse_use_stream_restore = false;
		_pa_volume_sig_count = 0;

		if (pulse_dbus_server_env != null) {
			address = pulse_dbus_server_env;
		} else {
			DBusConnection conn;
			Variant props;

			try {
				conn = Bus.get_sync (BusType.SESSION);
			} catch (GLib.IOError e) {
				warning ("unable to get the dbus session bus: %s", e.message);
				return;
			}

			try {
				var props_variant = conn.call_sync ("org.PulseAudio1",
						"/org/pulseaudio/server_lookup1", "org.freedesktop.DBus.Properties",
						"Get", new Variant ("(ss)", "org.PulseAudio.ServerLookup1", "Address"),
						null, DBusCallFlags.NONE, -1);
				props_variant.get ("(v)", out props);
				address = props.get_string ();
			} catch (GLib.Error e) {
				warning ("unable to get pulse unix socket: %s", e.message);
				return;
			}
		}

		debug ("PulseAudio dbus unix socket: %s", address);
		try {
			_pconn = new DBusConnection.for_address_sync (address, DBusConnectionFlags.AUTHENTICATION_CLIENT);
		} catch (GLib.Error e) {
			/* If it fails, it means the dbus pulse extension is not available */
			return;
		}

		/* For pulse dbus related events */
		_pconn.add_filter (pulse_dbus_filter);

		/* Check if the 4 currently supported media roles are already available in StreamRestore
		 * Roles: multimedia, alert, alarm and phone */
		_objp_role_multimedia = stream_restore_get_object_path ("sink-input-by-media-role:multimedia");
		_objp_role_alert = stream_restore_get_object_path ("sink-input-by-media-role:alert");
		_objp_role_alarm = stream_restore_get_object_path ("sink-input-by-media-role:alarm");
		_objp_role_phone = stream_restore_get_object_path ("sink-input-by-media-role:phone");

		/* Only use stream restore if every used role is available */
		if (_objp_role_multimedia != null && _objp_role_alert != null && _objp_role_alarm != null && _objp_role_phone != null) {
			debug ("Using PulseAudio DBUS Stream Restore module");
			/* Restore volume and update default entry */
			update_active_sink_input.begin (-1);
			_pulse_use_stream_restore = true;
		}
	}

	private string? stream_restore_get_object_path (string name) {
		string? objp = null;
		try {
			Variant props_variant = _pconn.call_sync ("org.PulseAudio.Ext.StreamRestore1",
					"/org/pulseaudio/stream_restore1", "org.PulseAudio.Ext.StreamRestore1",
					"GetEntryByName", new Variant ("(s)", name), null, DBusCallFlags.NONE, -1);
			/* Workaround for older versions of vala that don't provide get_objv */
			VariantIter iter = props_variant.iterator ();
			iter.next ("o", &objp);
			debug ("Found obj path %s for restore data named %s\n", objp, name);
		} catch (GLib.Error e) {
			warning ("unable to find stream restore data for: %s", name);
		}
		return objp;
	}
}