aboutsummaryrefslogtreecommitdiffstats
path: root/src/mixer/MixerAll.cxx
blob: 5fef6a92f2971c9f996f19905c31f7720aff700d (plain) (blame)
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
/*
 * Copyright (C) 2003-2014 The Music Player Daemon Project
 * http://www.musicpd.org
 *
 * 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.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

#include "config.h"
#include "output/MultipleOutputs.hxx"
#include "MixerControl.hxx"
#include "MixerInternal.hxx"
#include "MixerList.hxx"
#include "output/Internal.hxx"
#include "pcm/Volume.hxx"
#include "util/Error.hxx"
#include "util/Domain.hxx"
#include "Log.hxx"

#include <assert.h>

static constexpr Domain mixer_domain("mixer");

static int
output_mixer_get_volume(const AudioOutput &ao)
{
	if (!ao.enabled)
		return -1;

	Mixer *mixer = ao.mixer;
	if (mixer == nullptr)
		return -1;

	Error error;
	int volume = mixer_get_volume(mixer, error);
	if (volume < 0 && error.IsDefined())
		FormatError(error,
			    "Failed to read mixer for '%s'",
			    ao.name);

	return volume;
}

int
MultipleOutputs::GetVolume() const
{
	unsigned ok = 0;
	int total = 0;

	for (auto ao : outputs) {
		int volume = output_mixer_get_volume(*ao);
		if (volume >= 0) {
			total += volume;
			++ok;
		}
	}

	if (ok == 0)
		return -1;

	return total / ok;
}

static bool
output_mixer_set_volume(AudioOutput &ao, unsigned volume)
{
	assert(volume <= 100);

	if (!ao.enabled)
		return false;

	Mixer *mixer = ao.mixer;
	if (mixer == nullptr)
		return false;

	Error error;
	bool success = mixer_set_volume(mixer, volume, error);
	if (!success && error.IsDefined())
		FormatError(error,
			    "Failed to set mixer for '%s'",
			    ao.name);

	return success;
}

bool
MultipleOutputs::SetVolume(unsigned volume)
{
	assert(volume <= 100);

	bool success = false;
	for (auto ao : outputs)
		success = output_mixer_set_volume(*ao, volume)
			|| success;

	return success;
}

static int
output_mixer_get_software_volume(const AudioOutput &ao)
{
	if (!ao.enabled)
		return -1;

	Mixer *mixer = ao.mixer;
	if (mixer == nullptr || !mixer->IsPlugin(software_mixer_plugin))
		return -1;

	return mixer_get_volume(mixer, IgnoreError());
}

int
MultipleOutputs::GetSoftwareVolume() const
{
	unsigned ok = 0;
	int total = 0;

	for (auto ao : outputs) {
		int volume = output_mixer_get_software_volume(*ao);
		if (volume >= 0) {
			total += volume;
			++ok;
		}
	}

	if (ok == 0)
		return -1;

	return total / ok;
}

void
MultipleOutputs::SetSoftwareVolume(unsigned volume)
{
	assert(volume <= PCM_VOLUME_1);

	for (auto ao : outputs) {
		const auto mixer = ao->mixer;

		if (mixer != nullptr &&
		    &mixer->plugin == &software_mixer_plugin)
			mixer_set_volume(mixer, volume, IgnoreError());
	}
}