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
|
/*
* Copyright 2003-2018 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.
*/
/** \file
*
* Functions which manipulate a #Mixer object.
*/
#ifndef MPD_MIXER_CONTROL_HXX
#define MPD_MIXER_CONTROL_HXX
class Mixer;
class EventLoop;
class AudioOutput;
struct MixerPlugin;
class MixerListener;
struct ConfigBlock;
/**
* Throws std::runtime_error on error.
*/
Mixer *
mixer_new(EventLoop &event_loop, const MixerPlugin &plugin,
AudioOutput &ao,
MixerListener &listener,
const ConfigBlock &block);
void
mixer_free(Mixer *mixer);
/**
* Throws std::runtime_error on error.
*/
void
mixer_open(Mixer *mixer);
void
mixer_close(Mixer *mixer);
/**
* Close the mixer unless the plugin's "global" flag is set. This is
* called when the #AudioOutput is closed.
*/
void
mixer_auto_close(Mixer *mixer);
/**
* Throws std::runtime_error on error.
*/
int
mixer_get_volume(Mixer *mixer);
/**
* Throws std::runtime_error on error.
*/
void
mixer_set_volume(Mixer *mixer, unsigned volume);
#endif
|
