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
|
/*
* Copyright (C) 2003-2009 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <stdio.h>
#include <assert.h>
#include "mixer_api.h"
void mixer_init(struct mixer *mixer, const struct mixer_plugin *plugin)
{
assert(plugin != NULL);
assert(mixer != NULL);
mixer->plugin = plugin;
mixer->data = mixer->plugin->init();
}
void mixer_finish(struct mixer *mixer)
{
assert(mixer != NULL && mixer->plugin != NULL);
mixer->plugin->finish(mixer->data);
mixer->data = NULL;
mixer->plugin = NULL;
}
struct mixer *
mixer_new(const struct mixer_plugin *plugin, const struct config_param *param)
{
struct mixer *mixer = g_new(struct mixer, 1);
mixer_init(mixer, plugin);
plugin->configure(mixer->data, param);
return mixer;
}
void
mixer_free(struct mixer *mixer)
{
mixer_finish(mixer);
g_free(mixer);
}
bool mixer_open(struct mixer *mixer)
{
assert(mixer != NULL && mixer->plugin != NULL);
return mixer->plugin->open(mixer->data);
}
bool mixer_control(struct mixer *mixer, int cmd, void *arg)
{
assert(mixer != NULL && mixer->plugin != NULL);
return mixer->plugin->control(mixer->data, cmd, arg);
}
void mixer_close(struct mixer *mixer)
{
assert(mixer != NULL && mixer->plugin != NULL);
mixer->plugin->close(mixer->data);
}
|
