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
|
/***
This file is part of PulseAudio.
Copyright 2004-2008 Lennart Poettering
Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
PulseAudio is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation; either version 2.1 of the License,
or (at your option) any later version.
PulseAudio 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 Lesser General Public License
along with PulseAudio; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
USA.
***/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <pulsecore/core.h>
#include <pulsecore/module.h>
#include <pulsecore/sink.h>
#include <pulsecore/modargs.h>
#include "alsa-util.h"
#include "alsa-sink.h"
#include "module-alsa-sink-symdef.h"
PA_MODULE_AUTHOR("Lennart Poettering");
PA_MODULE_DESCRIPTION("ALSA Sink");
PA_MODULE_VERSION(PACKAGE_VERSION);
PA_MODULE_LOAD_ONCE(FALSE);
PA_MODULE_USAGE(
"name=<name of the sink, to be prefixed> "
"sink_name=<name for the sink> "
"device=<ALSA device> "
"device_id=<ALSA card index> "
"format=<sample format> "
"rate=<sample rate> "
"channels=<number of channels> "
"channel_map=<channel map> "
"fragments=<number of fragments> "
"fragment_size=<fragment size> "
"mmap=<enable memory mapping?> "
"tsched=<enable system timer based scheduling mode?> "
"tsched_buffer_size=<buffer size when using timer based scheduling> "
"tsched_buffer_watermark=<lower fill watermark> "
"ignore_dB=<ignore dB information from the device?>");
static const char* const valid_modargs[] = {
"name",
"sink_name",
"device",
"device_id",
"format",
"rate",
"channels",
"channel_map",
"fragments",
"fragment_size",
"mmap",
"tsched",
"tsched_buffer_size",
"tsched_buffer_watermark",
"ignore_dB",
NULL
};
int pa__init(pa_module*m) {
pa_modargs *ma = NULL;
pa_assert(m);
pa_alsa_redirect_errors_inc();
snd_config_update_free_global();
if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
pa_log("Failed to parse module arguments");
goto fail;
}
if (!(m->userdata = pa_alsa_sink_new(m, ma, __FILE__, NULL, NULL)))
goto fail;
pa_modargs_free(ma);
return 0;
fail:
if (ma)
pa_modargs_free(ma);
pa__done(m);
return -1;
}
int pa__get_n_used(pa_module *m) {
pa_sink *sink;
pa_assert(m);
pa_assert_se(sink = m->userdata);
return pa_sink_linked_by(sink);
}
void pa__done(pa_module*m) {
pa_sink *sink;
pa_assert(m);
if ((sink = m->userdata))
pa_alsa_sink_free(sink);
snd_config_update_free_global();
pa_alsa_redirect_errors_dec();
}
|
